CN1129518C

CN1129518C - Electric saw cutting machine with liquid cooling bearing device

Info

Publication number: CN1129518C
Application number: CN 98102457
Authority: CN
Inventors: 李威鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-24
Filing date: 1998-06-24
Publication date: 2003-12-03
Anticipated expiration: 2018-06-24
Also published as: CN1240161A

Abstract

The invention relates to an electric saw cutting machine with a liquid cooling bearing device, which mainly comprises a water-cooled bearing box assembly and a driven cutting saw blade, wherein the water-cooled bearing box assembly consists of a cooling chamber and a saw blade spindle sleeve, the cooling chamber is annularly arranged in the saw blade spindle sleeve and is approximately in a C shape, and the bearing box is provided with a cooling liquid inlet and a cooling liquid outlet so as to be matched with the serial connection of the cooling chamber and a water guide pipe; by the above structure, the cooling liquid can not only be used to cool the saw blade and the cutting object, but also be used to prevent the bearing on the saw blade spindle from being damaged due to overheating when the cooling liquid flows into the bearing box.

Description

Electric saw cutting machine with liquid cooling bearing device

System of the present invention is relevant with water cooled bearing case power cutter, be meant a kind of power cutter that is used in ceramic tile and cement brick cutting especially, its can by a liquid cooling system can reality the long-pending heat in the cooling bearing case effectively, therefore prolonged service life of bearing.Belong to the electric saw cutting equipment.

At present, power cutter often is used to cutting tile or other construction material such as granite, marble, cement plate, brick and tile ceramic tile and cement products etc., and traditional type power cutter system makes up the cutting workbench simply, supports the brandreth of its weight and is installed in the motor of cutting workbench top and the cutting head of bearing housing transmission cast-cutting saw slice; Wherein, the end portion system of saw blade cutting head is installed on the appropriate position near brandreth, its fore-end then is equiped with a cutting saw blade, and cast-cutting saw slice system is arranged on the clutch end of bearing housing transmission saw blade axle, the power intake of this axle then is connected with motor with a driving belt, and the saw blade that is driven on the bearing housing axle by the rotation of motor rotates;

When the traditional type power cutter cut, cooling fluid then must be transported between saw blade and cut substrate by suction pump, uses the heat of being accumulated when lowering cutting and dash the sawdust that is produced when sawing; And delivery port system is installed on the saw blade protecting cover of saw blade top, and cool off saw blade with the enough water yields of a tank supply, tank then is installed under the cutting workbench, use cooling fluid that collection flows down by the saw blade protecting cover, cutting down sawdust and and the mud that mixes of cooling fluid; Briefly, the shortcoming of traditional buck is as follows:

One, traditional power cutter, its bearing housing regular meeting damages because of overheated, and its reason is: a large amount of heat energy of being accumulated when bearing housing successively rotates can't be cooled off (heat radiation) fully, and cause the damage immediately of bearing internal structure; Generally speaking, if running is above more than one hour continuously for bearing, its too high temperature will cause damage to bearing immediately.Cause the time and the difficulty that increase the maintenance of user's bearing, cutting efficiency is low.

Two, during the mud of user in removing the conventional cutter tank, must be with the cutting workbench by separating on its brandreth or the slide rail, up to now effective and efficient manner also can only the rollover of cutting workbench, then tank is taken away by side, but is so still caused user's inconvenience.

Three, whole cutting unit has comprised the support brandreth, cutting workbench and cut first-classly, and so to carry with two people be a very difficult thing to weight.

Main purpose of the present invention is: a kind of electric saw cutting machine with liquid cooling bearing device is provided, it can make cooling fluid not only can be used to cool off saw blade and cut substrate, and in the time of in it flows into bearing housing, this cooling fluid can be used to more prevent that the saw blade axle from causing the bearing on it impaired because of overheated, prolong the service life of bearing, mounting or dismounting are easy, and operation and maintenance is convenient.

A kind of electric saw cutting machine (hereinafter to be referred as " buck ") of the present invention with liquid cooling bearing device, it includes:

One brandreth;

One is installed in the cutting workbench on the brandreth;

One is installed in the cutting head on the cutting workbench, this cutting head comprises the mode that can adjust cutting-height and is contained in cutting implement body on the brandreth, one is installed in power motor on the buck, one is fixed on cutting implement body leading edge below so that the water cooled bearing box assembly of a cutting saw blade is installed and the power of a power motor reaches the interior transmission device of water cooled bearing box assembly, and water cooled bearing box assembly system is made up of the bearing housing and a saw blade axle of a hollow cylindrical, wherein, this bearing housing comprises a saw blade spindle collet and two bearing blocks, and saw blade axle system is arranged in the saw blade spindle collet of bearing housing, its length is length than bearing housing, and the appropriate position in nearly two ends is arranged with bearing respectively, and this bearing is embedded at respectively on the diaxon bearing of bearing housing, makes the saw blade axle can be supported and do the rotation of concentric on bearing housing; Again, a wherein end of saw blade axle system is installed with a saw blade, and this saw blade system rotates by the drive of transmission device; And

One suction pump extracts the cooling fluid be stored in the tank through aqueduct, formed sawdust when the heat that enough cooling fluid cooling saw blade produces because of cutting being provided and cleaning cutting;

This bearing housing further comprises a cooling chamber that is located in the saw blade spindle collet, and the appropriate position on the bearing housing is provided with a cooling fluid water inlet and a delivery port simultaneously, so that connect cooling cover and cooling aqueduct, make the cooling fluid of smoking by suction pump, not only can be used to cool off saw blade and can flow in the cooling cover of bearing housing inside simultaneously, so as the cooling bearing case with prevent bearing because of long-time rolling cause overheated.

Wherein, this cooling chamber is to be located in the inside of saw blade spindle collet, and its shape is generally c-shaped.

Wherein, the first half of this cooling chamber is provided with several wavy protrusions that are.

Wherein, this cooling fluid water inlet system is arranged at side under the bearing housing, and cooling fluid is penetrated in the Lower Half of cooling chamber, and the cooling fluid delivery port then is arranged at the bearing housing top, makes cooling fluid be entered the first half of cooling chamber; By this, cooling fluid can enter in the Lower Half of cooling chamber via water inlet, and flow to the first half of cooling chamber, flows out outside the cooling chamber via delivery port again.

Wherein, this cooling liquid bath is one to be installed on the tank of this cutting workbench below.

Wherein, this bearing housing tightly locks in cutting head machine body edge below before.

Wherein, this cooling water guide piping has comprised first aqueduct and second aqueduct between the cooling fluid water inlet that is connected in suction pump and bearing housing, this second water guide piping is arranged at first nozzle on the saw blade protecting cover along cutting head facility body to the saw blade protecting cover with the cooling liquid outlet to of connection bearing case, and the 3rd aqueduct is to be connected between second aqueduct and second nozzle, and this nozzle system is arranged at the appropriate location of saw blade protecting cover central interior, in order to cooling fluid being sprayed onto interior washer; Again, drain aqueduct and then install between first aqueduct and second aqueduct, to connect cooling fluid inlet and delivery port.

Wherein, this cooling fluid aqueduct more comprises a water control valve that is connected between second aqueduct and the 3rd aqueduct; So, when shutting water control valve, cooling fluid promptly can't direct into first nozzle and second nozzle, and is back in the guide wire that connects between second aqueduct and tank.

Wherein, this power motor is arranged on the end of cutting machine body, and the water cooled bearing box assembly then is provided with the leading edge below of cutting implement body.

Wherein, be provided with several fixing holes in end system, and bearing housing also is provided with and the corresponding perforation of above-mentioned fixing hole near cutting head facility body; Its spiral shell fixing apparatus system is by several fixed screws and several hold-doun nuts, wherein, fixed screw passes the perforation of the fixing hole and the bearing housing of facility body respectively, locks fixed screw respectively with hold-doun nut then, so that the rigid bearing case is below edge before the cutting implement body.

Wherein, this locked instrument has more comprised an iron stator of being close to side under the bearing housing, as user during with hold-doun nut rigid bearing case, this stator can avoid because of incorrect locking to infringement that bearing housing caused.

Wherein, power motor is arranged on the end of cutting machine body, and the water cooled bearing box assembly then is arranged on the leading edge below of cutting implement body.

Wherein, this water cooled bearing box assembly system is installed in the front end below of cutting head facility body.

Wherein, this tank is to be placed within the brandreth, brandreth then comprises two and is individually fixed in the slide rail of brandreth both sides for the forward and backward slip of cutting workbench, and wherein the slide rail of side system can be limited to the tank frame appropriate position in the brandreth, and the next angle bar that is close to of the slide rail of opposite side makes during tank can remain within the brandreth opposite side by angle bar; Therefore, tank system can angle bar be an extraction axle, cleans or refill cooling fluid so that tank can take out from a wherein side of brandreth.

Wherein, these four foot rests are inserted in four square iron pipes of brandreth four sides by the foot rest upper limb with inserted mode.

Wherein, be to be provided with two auxiliary pulleys on the wherein side end of this brandreth, and then be installed with movable pulley respectively in bipod bottom side, the other end.

Wherein, be to be provided with two auxiliary pulleys on the wherein side end of this brandreth, and then be installed with movable pulley respectively in bipod bottom side, the other end, further say, four foot rests are inserted in four square iron pipes of brandreth four sides by the foot rest upper limb with inserted mode.

Advantage of the present invention is:

(1) the cooled bearing assembly comprises the cooling system of water-cooled, is beneficial within the cooling bearing box assembly, makes it be prolonged the service life of bearing;

(2) the present invention's water cooled system is to utilize original tank and suction pump equipment, can actual reduce unnecessary equipment cost effectively;

(3) the water cooled bearing assembly has easy-to-disassemble and assemble advantage;

(4) design of the present invention have simple and easy cleaning sink and fixedly tank in cutting the following characteristic of buck;

(5) foot rest of the simple and easy dismounting of tool of the present invention can be beneficial to and just bring up on the vehicles or move down.

The present invention has following accompanying drawing:

Fig. 1 is the present invention's schematic perspective view.

Fig. 2 A is the decomposing schematic representation of middle (center) bearing box assembly of the present invention.

Fig. 2 B is the section zoomed-in view of water cooled bearing case of the present invention.

Fig. 3 is the present invention's side view.

Fig. 4 is the present invention's water cooled bearing case cut-away section zoomed-in view.

Fig. 5 is cutting head part zoomed-in view among the present invention.

Fig. 6 is the schematic perspective view of another embodiment of the present invention.

Number in the figure is as follows:

10. cut workbench 20. brandreths 21. foot rests

22. foot rest 23. foot rests 24. foot rests

25. slide rail 26. slide rails 27. angle bar

201. iron pipe 202. iron pipes 203. iron pipes

204. iron pipe 30. tanks 301. cooling liquid baths

40. cutting head 41. bodies 411. fixing holes

42. bracing frame 43. motors 44. bolting elements

45. stator 46. nuts 50. bearing housing assemblies

51. bearing housing 511. sleeves 512. bearing blocks

513. bearing block 514. cooling chambers 5142. excrescences

515. water inlet 516. delivery ports 517. perforation

518. screw 52. saw blade axles 521. ends

523. end 532. bearings, 533. bearings

534. washer in water seal gasket sheet 54. bolting elements 541.

542. outer washer 55. pulleys 60. saw blades

61. protecting cover 70. transmission devices 80. aqueducts

801. first aqueduct, 802. second aqueducts 803. the 3rd aqueduct

804. drainage aqueduct

81. suction pump 82. water control valves 821. first nozzles

822. second nozzle, 83. brushes, 90. auxiliary pulleys

91. auxiliary pulley 92. pulleys

Now details are as follows for embodiment and conjunction with figs.:

See also shown in Figure 1, preferred embodiment for the present invention, at first, a kind of buck structure that aims at cutting tile and other cement products and design is described, this buck system comprises the brandreth 20 that a cutting workbench 10 and has been set up slide rail, wherein, this cutting workbench 10 is to slide on the slide rail of brandreth 20, the bottom of brandreth 20 then is equipped with four easy-disassembling-assembling foot rests 21,22,23,24, and cutting workbench 10 belows are provided with a tank 30, its top then is equiped with a cutting head 40, this cutting head 40 has comprised a cutting machine tool body 41, one is right after the power motor 43 that is arranged on cutting machine body 41 ends at the bracing frame 42 and of brandreth 20 lateral margins, the leading edge of cutting implement body 41 below then is provided with a water cooled bearing box assembly 50, and the two ends system of this bearing housing assembly 50 is equipped with a cutting saw blade 60 and the power with power motor 43 respectively and reaches the interior transmission device 70 of water cooled bearing box assembly 50; See also shown in Figure 1ly, this transmission device 70 is one to be connected in the driving belt between the pulley of saw blade axle of pulley on motor 43 axles and water cooled bearing box assembly 50;

See also Fig. 1 and shown in Figure 5, this buck has more comprised a suction pump 81 that is sunken in interior the cooling fluid of cooling liquid bath, and this cooling liquid bath can be a container or be tank 30 independently; As shown in Figure 5, suction pump 81 extracts cooling fluid by tank 30, through aqueduct 80, be sent to the nozzle 821 (this nozzle is at least) of the saw blade protecting cover 61 that is connected in saw blade 60 tops again, with cooling fluid that q.s is provided on saw blade 60 and cut substrate, and the sawdust when being cooled off the high temperature that cutting causes and removing cutting; Again, this cooling fluid can be water-cooled liquid or the clear water that contains lubricant effect;

See also Fig. 2 A, Fig. 2 B and shown in Figure 4, this water cooled bearing box assembly 50 is to be made up of the bearing housing 51 of a hollow cylindrical and a saw blade axle 52, wherein, this bearing housing 51 comprises a saw blade spindle collet 511 and two bearing blocks 512,513, and saw blade axle 52 is to be arranged in the saw blade spindle collet 511 of bearing housing 51, its length is length than bearing housing 51, and the appropriate position in nearly two ends is arranged with bearing 532 and 533 respectively, and this bearing 532 and 533 is the diaxon bearing 512 that is embedded at bearing housing 51 respectively, on 513, make saw blade axle 52 can be supported and do the rotation of concentric at bearing housing 51; Again, before installing bearing 533, one water seal pad 534 need be installed in advance on saw blade spindle collet 511, with the cooling chamber on the sealed bearing case 51 514, and interior washer 541 is to be sheathed on the wherein end of saw blade axle 52, use fixedly cast-cutting saw slice 60, and outer washer 542 is with a bolting element 54 cast-cutting saw slice 60 to be fixed at saw blade axle 52 wherein on the end 521; Moreover pulley 55 is to be fixedly arranged on the other end 523 of saw blade axle 52, uses to drive transmission device 70 rotations;

See also Fig. 2 B and shown in Figure 4 again, bearing housing 51 more comprises a C shape cooling chamber 514 that is located in the saw blade spindle collet 511, and water seal pad 534 promptly is to keep cooling fluid constantly to recycle in cooling chamber 514; Again, also be provided with the cooling fluid water inlet 515 and a delivery port 516 (as shown in Figure 5) that can be connected at cooling chamber 514 and aqueduct 80 on the bearing housing 51, so, the present invention's cooling fluid not only just is used for cooling off saw blade 60 and reaches the sawdust that dashes under sawing, and in the time of in it flows into bearing housing 51, can be used for cooling bearing case 51 simultaneously, thus, can prevent that two bearings 532,533 is overheated; Again, shown in Fig. 2 B, these bearing housing 51 belows also can be locked and be established a control screw 518;

See also Fig. 3 and shown in Figure 5, centre system establishes and has two nozzles 821 and 822 among the saw blade protecting cover 61, and be sent to cooling fluids in nozzle 821 and 822 promptly is to extract the interior cooling fluid of aqua storage tank 30 via suction pump 81, and by two nozzles 821 and 822 and the cooling aqueduct 80 of 81 of suction pumps, make cooling fluid be delivered to two nozzles 821 and 822, it can be sprayed cooling fluid to the place ahead of interior washer 541 and saw blade 60;

According to design philosophy of the present invention, in order to reach better circulating effect, cooling fluid water inlet 515 is to be arranged at side under the bearing housing 51, make in its Lower Half that is penetrated cooling chamber 514, cooling fluid delivery port 516 then is arranged at bearing housing 51 tops, makes it be entered the first half of cooling chamber 514; By this, cooling fluid can enter in the Lower Half of cooling chamber 514 via water inlet 515, and flow to the first half of cooling chamber 514, flows out outside the cooling chamber 514 via delivery port 516 again; So, the whole saw blade spindle collet 511 chamber 514 interior cooling fluids that nearly all are cooled surround, and bearing housing 51 can be subjected to sufficient cooling at the heat of running two bearings 532,533 that accumulate on;

Again, in order to promote the cooling effect of cooling fluid when flowing through the interior cooling chamber 514 of bearing housing 51, the topsheet surface of cooling chamber 514 first halves is provided with several wavy excrescences 5142 that are, to increase the cooling contact-making surface in the bearing housing 51, yet, because the heat transfers in the bearing housing 51 can accumulate on the bearing housing first half, severally be wavy excrescence 5142 so cooling chamber 514 first halves can be provided with, collect and disengage the function of heat in the cooling fluid of cooling chamber 514 with performance;

Continuous Fig. 1, Fig. 2 B, Fig. 4 and shown in Figure 5 of seeing also, be provided with four fixing holes 411 (as shown in Figure 5) in the end system near cutting head facility body 41, bearing housing 51 also is provided with four perforation 517 (as Fig. 2 B and shown in Figure 4) with the above-mentioned same center line of fixing hole; Yet, it is to utilize an iron stator 45 to be close to side (as Fig. 1, Fig. 2 and shown in Figure 5) under bearing housing 51 that water cooled bearing box assembly 50 is fixedly arranged on the locking mode of holding before the cutting head facility body 41, bolting element 44 then passes the fixing hole 411 on the cutting head facility body 41, the perforation 517 and the iron stator 45 of bearing housing 51 respectively, and on each bolting element 44, lock a hold-doun nut 46 respectively, so just bearing housing 51 very firmly can be locked in cutting head facility body 41 front ends; Again, because the aluminium casting has splendid radiating effect, so the aluminium casting is to make the best metal material of bearing housing always; So the present invention utilizes an iron stator 45, to avoid when being locked nut 46, owing to the incorrect application of force is damaged bearing housing 51;

Continuous see also shown in Figure 5, cooling aqueduct 80 is first aqueduct 801 and second aqueduct 802 that has comprised between the cooling fluid water inlet 515 that is connected in suction pump 81 and bearing housing 51, wherein, this second aqueduct 802 is along cutting head facility body 41 to saw blade protecting cover 61, is arranged at first nozzle 821 on the saw blade protecting cover 61 with the cooling liquid outlet 516 to of connection bearing case 51; And the 3rd aqueduct 803 is to be connected between second aqueduct 802 and second nozzle 822, and this nozzle 822 is the appropriate location that is arranged at saw blade protecting cover 61 central interior, in order to washer 541 in cooling fluid is sprayed onto; Again, drain 804 devices of aqueduct between first aqueduct 801 and second aqueduct 802 to connect cooling fluid inlet 515 and delivery port 516, and the junction of second aqueduct 802 and the 3rd aqueduct 803 system is provided with a water control valve 82, when water control valve 82 is closed, cooling fluid promptly can't be via being directed to nozzle 821 and 822, and then can be led cooling fluid by second aqueduct 802 (or bearing housing 51 delivery ports 516) and the drainage aqueduct 804 that is connected with second aqueduct 802 and be back in the tank 30 this moment;

In sum, cooling fluid in the tank 30 is extracted by suction pump 81 after first aqueduct 801 enters into the cooling chamber 514 that is arranged in bearing housing 51, and this cooling fluid that enters bearing housing 51 cooling chambers 514 then is to be used for getting rid of the long-pending heat that reaches when bearing housing 51 turns round on two bearings 532 and 533; Cooling fluid in the cooling chamber 514 is then discharged by cooling fluid delivery port 516 above flowing to it the time;

Only, when fetching boiling water control valve 82, cooling fluid is discharged and is flowed in second aqueduct 802 and the 3rd aqueduct 803 by cooling delivery port 516, be delivered to first nozzle 821 and second nozzle 822 again, wherein, first nozzle 821 is to provide the cooling fluid of capacity to saw blade 60, the sawdust that is produced during with saw blade 60 in the cooling cutting and removing cutting, and the cooling fluid that second nozzle 822 provides capacity too is to interior washer 541, and the heat that is caused when avoiding saw blade 60 cuttings passes in the bearing housing assembly 50;

Again, cooling fluid flushing saw blade 60, sawdust and the composite mud of cooling fluid under its cutting then can be collected in the tank 30 of buck below; And when the buck power supply opened and closed, it drains aqueduct 804 can make cooling fluid be back to fast in the tank 30, with guarantee not have cooling fluid lodge in second and third aqueduct 802 and 803 or the cooling chamber 514 of bearing housing 51 in;

Moreover, coolant rate also can be by water control valve 82 controls, so just, controlled refrigeration is flow quantity size or stop cooling fluid and enter first and second nozzle 821 and 822 but, as user and must dried cutting the time in certain specific work environments (as office work or cutting cement thing), then can utilize water control valve 82 to stop cooling fluid fully and flow to first and second nozzle 821 and 822 by the delivery port 516 of bearing housing assembly 50, in this case, the cooling fluid that is flowed out by bearing housing 51 cooling fluid delivery ports 516 will directly be got back in the tank 30 via aqueduct;

When using must bearing cleaning case 51 time, can carry out according to the following step: 1. unclamp control screw 518,2. close water control valve 82,3. stop cooling fluid and be back to delivery port 516; Thus, suction pump 81 can so that the cooling fluid adverse current to flush out the mud of alluvial in bearing housing 51;

Continuous see also shown in Figure 5ly, the leading edge system of saw blade protecting cover 61 can be provided with a plastic cement brush 83, and this plastic cement brush 83 then can make cooling fluid remain on saw blade 60 both side surface for a long time and cleaned saw blade 60 before cutting; In addition, plastic cement brush 83 more can prevent saw blade 60 when running up, and cooling fluid has the situation of sprinkling everywhere;

Continuous Fig. 1, Fig. 2 A and shown in Figure 3 of seeing also, tank 30 is to be placed within the brandreth 20, brandreth 20 then comprises two and is individually fixed in the

slide rail

25,26 of brandreth 20 both sides for the 10 forward and backward slips of cutting workbench, wherein the slide rail 25 of a side is tank 30 frames to be limited to the interior appropriate position of brandreth 20, and the slide rail 26 next angle bar 27 that are close to of opposite side make during tank 30 can remain within brandreth 20 opposite sides by angle bar 27; Therefore, tank 30 is angle bar 27 to be an extraction axle, cleans or refill cooling fluid (shown in Fig. 2 A) so that tank 30 can take out from a wherein side of brandreth 20; Again, another purpose of angle bar 27 be the protection tank 30 in handling process, unlikely broken impaired;

The continuous Fig. 1 and shown in Figure 3 that sees also, be to be provided with two auxiliary pulleys 91 on the wherein side end of brandreth 20, and its

foot rest

23 and 24 bottoms then are installed with movable pulley 92 respectively, and four foot rests 21,22,23 and 24 are inserted in four square iron pipes 201,202,203 and 204 of brandreth 20 4 sides with inserted mode by the foot rest upper limb; Thus, the user transports when of the present invention with lorry, then it can be transported to by the lorry, again two auxiliary pulleys 91 are abutted on the lorry frame, take off the

foot rest

23,24 on the brandreth 20 then, then, promote buck auxiliary pulley 91 is advanced on the lorry frame, two foot rests 21 and 22 that take off brandreth 20 front ends at last get final product; In addition, also can be according to above-mentioned reverse procedure and with the present invention easily by moving down buck on the lorry; Moreover the user then can tilt to put to miter angle when the flat ground surface carrying is of the present invention with foot rest, thus, then can utilize auxiliary pulley 91 to be pushed to another job site on smooth floor, and need not others' assistance;

Continuous see also shown in Figure 6ly, the present invention also can set up a cooling liquid bath 301 that can hold the pumping 81 of drawing water, and cooling fluids system in this groove 301 can be by the extraction of the pumping of drawing water, and with its being sent in the bearing housing 51 for cooling by first aqueduct 801; Again, this mode also is particularly suitable for dried cutting, at first, water control valve 82 is closed, cooling fluid in the cooling liquid bath 301 is then extracted out via suction pump 81, mode with intimate circulation circulates in the cooling chamber 514 of bearing housing assembly 50 bearing housings 51 then, and is right, then cools off liquid bath 301 via flowing back to after the aqueduct collection by the cooling fluid that cooling chamber 514 flows out; Thus, saw blade 60 can successively cut and not worry that bearing 532 and 533 can be because of overheated and impaired.

Claims

1. A chainsaw cutting machine with a liquid-cooled bearing device, characterized in that: it includes:

an iron frame;

a cutting table installed on the iron frame;

A cutting head installed on the cutting table, the cutting head includes a cutting machine body mounted on the iron frame in an adjustable cutting height, a power motor installed on the electric saw cutting machine, a cutting machine body fixed on the cutting machine The lower part of the front edge of the main body is convenient for installing a water-cooled bearing box assembly for cutting saw blades and the power of a power motor is transmitted to the transmission device in the water-cooled bearing box assembly, and the water-cooled bearing box assembly is composed of a hollow cylindrical It consists of a bearing box and a saw blade mandrel, wherein the bearing box includes a saw blade mandrel sleeve and two bearing seats, and the saw blade mandrel is installed in the saw blade mandrel sleeve of the bearing box , its length is longer than that of the bearing box, and bearings are respectively sleeved at appropriate positions near both ends, and the bearings are respectively embedded in the two bearing seats of the bearing box, so that the saw blade spindle can be supported on the bearing box Support and rotate coaxially; and one end of the saw blade mandrel is fixed with a saw blade, and the saw blade is driven by a transmission to rotate; and

A water pump draws the coolant stored in the water tank through the water guide pipe to provide enough coolant to cool the heat generated by the saw blade due to cutting and clean the sawdust formed during cutting;

The bearing box further includes a cooling chamber set in the saw blade spindle sleeve, and at the same time, a coolant inlet and outlet are provided at an appropriate position on the bearing box to facilitate the connection of the cooling sleeve and the cooling guide. The water pipe makes the coolant pumped by the water pump not only used to cool the saw blade but also flows into the cooling sleeve inside the bearing box to cool the bearing box and prevent the bearing from overheating due to long-term rolling.

2. An electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein the cooling chamber is arranged in a ring inside the saw blade mandrel sleeve, and its shape is C-shaped.

3. The electric saw cutting machine with liquid-cooled bearing device according to claim 1, characterized in that: the upper half of the cooling chamber is provided with wavy protrusions.

4. The electric saw cutting machine with liquid-cooled bearing device according to claim 2, characterized in that: the upper half of the cooling chamber is provided with wavy protrusions.

5. The electric saw cutting machine with liquid-cooled bearing device according to claim 1, characterized in that: the cooling liquid inlet is arranged under the bearing box, so that the cooling liquid can penetrate into the lower half of the cooling chamber part, and the coolant outlet is set above the bearing box, so that the coolant can enter the upper half of the cooling chamber; thus, the coolant can enter the lower half of the cooling chamber through the water inlet, and flow to The upper part of the cooling chamber flows out of the cooling chamber through the water outlet.

6. An electric saw cutting machine with a liquid-cooled bearing device according to claim 4, characterized in that: the cooling liquid inlet is arranged under the bearing box, so that the cooling liquid can penetrate into the lower half of the cooling chamber part, and the coolant outlet is set above the bearing box, so that the coolant can enter the upper half of the cooling chamber; thus, the coolant can enter the lower half of the cooling chamber through the water inlet, and flow to The upper part of the cooling chamber flows out of the cooling chamber through the water outlet.

7. The electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein the cooling liquid tank is a water tank installed under the cutting table.

8. The electric saw cutting machine with a liquid-cooled bearing device according to claim 6, wherein the cooling liquid tank is a water tank installed under the cutting table.

9. The electric saw cutting machine with liquid-cooled bearing device according to claim 8, characterized in that: the bearing box is tightly locked under the front edge of the cutting head machine body.

10. An electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein the cooling water pipe includes a first water pipe connected between the water pump and the cooling liquid inlet of the bearing box And the second water guide pipe, the second water guide pipe is along the cutting head tool body to the saw blade cover to connect the coolant outlet of the bearing box to a first nozzle arranged on the saw blade cover, and the third water guide pipe It is connected between the second water guide pipe and the second nozzle, and the nozzle is set at an appropriate position in the center of the saw blade guard to facilitate spraying the coolant to Nevas; and the drain water guide pipe is installed at the Between the first water guide pipe and the second water guide pipe, the coolant inlet and water outlet are connected.

11. A chainsaw cutting machine with a liquid-cooled bearing device according to claim 10, characterized in that: the coolant water pipe further includes a water volume control pipe connected between the second water pipe and the third water pipe valve; in this way, when the water volume control valve is closed, the coolant cannot be guided to the first nozzle and the second nozzle, but returns to the guide pipe connecting the second water guide pipe and the water tank.

12. An electric saw cutting machine with a liquid-cooled bearing device according to claim 8, characterized in that: the cooling water conduit system includes a first conduit connected between the water pump and the coolant inlet of the bearing box The water pipe and the second water guide pipe, the second water guide pipe is along the cutting head tool body to the saw blade cover to connect the coolant outlet of the bearing box to a first nozzle arranged on the saw blade cover, and the third guide The water pipe is connected between the second water guide pipe and the second nozzle, and the nozzle is arranged at an appropriate position in the center of the saw blade guard to facilitate spraying the coolant to Nevas; Between the first water guide pipe and the second water guide pipe, the coolant inlet and water outlet are connected.

13. The electric saw cutting machine with liquid-cooled bearing device according to claim 12, characterized in that: the coolant water pipe further includes a water volume control pipe connected between the second water pipe and the third water pipe In this way, when the water volume control valve is closed, the coolant cannot be guided to the first nozzle and the second nozzle, but returns to the guide pipe connecting the second water guide pipe and the water tank

14. The electric saw cutting machine with liquid-cooled bearing device according to claim 1, characterized in that: the power motor is arranged at the end of the cutting machine body, and the water-cooled bearing box assembly is arranged at the cutting machine body below the leading edge.

15. An electric saw cutting machine with liquid-cooled bearing device according to claim 15, characterized in that: the power motor is arranged at the end of the cutting machine body, and the water-cooled bearing box assembly is arranged at the cutting machine body below the leading edge.

16. The electric saw cutting machine with liquid-cooled bearing device according to claim 15, characterized in that: there is a fixing hole near the end of the cutting head tool body, and the bearing box is also provided with the fixing hole corresponding to the above-mentioned fixing hole. Corresponding perforation; the screw fixing device is composed of fixing screws and fixing nuts, wherein the fixing screws pass through the fixing holes of the machine body and the through holes of the bearing box respectively, and then lock the fixing screws with the fixing nuts respectively, so as to facilitate fixing The bearing housing is below the leading edge of the cutter body.

17. An electric saw cutting machine with a liquid-cooled bearing device according to claim 16, characterized in that: the screw fixing device further includes an iron fixing piece that is closely attached to the lower side of the bearing box, when the user This tab prevents damage to the bearing housing due to incorrect locking when the bearing housing is secured with a set nut.

18. An electric saw cutting machine with a liquid-cooled bearing device according to claim 13, characterized in that: the power motor is arranged at the end of the cutting machine body, and the water-cooled bearing box assembly is arranged at the cutting machine body below the leading edge.

19. An electric saw cutting machine with a liquid-cooled bearing device according to claim 19, wherein several fixing holes are provided at the end close to the tool body of the cutting head, and the bearing box is also provided with The perforation corresponding to the above-mentioned fixing hole; the screw fixing device is composed of several fixing screws and several fixing nuts. Lock the setscrews to secure the bearing housing below the front edge of the cutting tool body.

20. An electric saw cutting machine with a liquid-cooled bearing device according to claim 20, characterized in that: the screw fixing device further includes an iron fixing piece that is closely attached to the lower side of the bearing box, when the user This tab prevents damage to the bearing housing due to incorrect locking when the bearing housing is secured with a set nut.

21. An electric saw cutting machine with a liquid-cooled bearing device according to claim 8, characterized in that: the water tank is placed inside the iron frame, and the iron frame includes two parts respectively fixed on both sides of the iron frame for The slide rails that slide front and back of the cutting workbench, and the slide rails on one side can limit the sink frame to the appropriate position in the iron frame, while the slide rails on the other side are next to an angle iron, through the angle iron The water tank can be kept in the interior of the other side of the iron frame; therefore, the angle iron can be used as an extraction axis for the water tank, so that the water tank can be taken out from one side of the iron frame for cleaning or refilling with coolant.

22. An electric saw cutting machine with a liquid-cooled bearing device according to claim 21, characterized in that: the water tank is placed inside the iron frame, and the iron frame includes two parts respectively fixed on both sides of the iron frame for The slide rails that slide front and back of the cutting workbench, and the slide rails on one side can limit the sink frame to the appropriate position in the iron frame, while the slide rails on the other side are next to an angle iron, through the angle iron The water tank can be kept in the interior of the other side of the iron frame; therefore, the angle iron can be used as an extraction axis for the water tank, so that the water tank can be taken out from one side of the iron frame for cleaning or refilling with coolant.

23. The electric saw cutting machine with liquid-cooled bearing device according to claim 1, characterized in that: the four legs are inserted from the upper edge of the legs to the four square iron frames on the four sides of the frame in an inserting manner. inside the tube.

24. An electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein two auxiliary pulleys are provided on one end of the iron frame, and two legs are placed on the other end. The bottom side of the frame is respectively fixed with sliding wheels.

25. An electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein two auxiliary pulleys are provided on one end of the iron frame, and two feet are placed on the other end. The bottom side of the frame is respectively fixed with sliding wheels.

26. An electric saw cutting machine with a liquid-cooled bearing device according to claim 1, wherein two auxiliary pulleys are provided on one end of the iron frame, and two legs are placed on the other end. Sliding wheels are respectively fixed on the bottom side of the frame. Furthermore, the four legs are inserted into the four square iron pipes on the four sides of the frame from the upper edge of the legs in an inserted manner.