DE1284386B - Impact device for processing and crushing rock - Google Patents

Description

1 2

The invention relates to an impact device with a FIG. 5 an enlarged longitudinal section through the

tubular body in which a spring bearing the shaft of the cam part, downwardly pushable hammer moved up and down- F i g. 6 is a front view of the guide opening

is arranged bar, and with a movable up and down at the lower end for the sliding part of the tubular body 5 Fig. 7 an enlarged longitudinal section through ^: the impact tool, the upper end of which can be acted upon by the urine coupling between the cam part shaft and Antriebmer. wave,

Such impact devices are used for editing and F i g. 8 is an enlarged longitudinal section through the

Crushing rock, concrete and other important parts with one tool according to another borrowed materials. io embodiment of the invention,

Known tools of this type are shown by FIG. 9 shows a section along the line AA in FIG

Compressed air or another type of energy driven, Fig.8.

the driving force via a cam drive or according to FIG. 1 is on the top of a cane Crank drive is transferred to the hammer. shaped body of circular cross-section Disadvantageously, in these known designs, 15 oil container 2 is arranged. The oil tank 2 is over that such engines require a relatively large amount of space, an internal thread with the external thread of the pipe and are heavy so that working with shaped body 1 screwed. However, he can these devices with the power transmission by cure also by welding or the like on the tubular basket or the cam drive is strenuous. be attached by.

The invention is based on the object of this. At the bottom of the oil container 2 there is a To avoid disadvantages and a drive for the opening 3, which in the tubular body 1 To propose an impact device that performs an energy-saving. A valve 4, which works for opening and closing enables. ßen the opening 3 is used, is movable up and down

According to the invention, this object is thereby arranged. The upper end of the valve 4 is in the pass that a seat arranged to the side of the hammer is guided in a guide part 5, which rotates a drive motor on a shaft with the roller on a screw that lifts the hammer through a threaded hole at the upper end of the container 2, is screwed into and protrudes beyond. On the upper one laterally and approximately in the middle of the tubular protruding end of the valve 4 there is a housing flanged to the body 6 arranged flange has ben-like path on the upper part of the shaft, there is a tensioned helical spring 9. Through and that a sliding part connected to the roller presses the lower end of the valve 4 onto the opening 3 inclined to the direction of rotation of the cam part and closes it. By rotating the guide opening in the housing, the guide part 5 can be moved up and down, the contact pressure of the spring 9 can be arranged. 35 can be adjusted. It is also located at the top

This inventive design results in part of the container 2 having an oil inlet opening very smooth transmission of the driving force and therefore screw plug 21.

with energy-saving work with the device. To- Inside the tubular body 1 is open and

the device is very simple and a hammer 8 is easily movable. Between to manufacture. Compared to the known 40, it has the top of this hammer 8 and the bottom Versions of small dimensions and a small amount of the container 2 on the tubular body 1 is located Weight. a compressed spring 7 to hold the ham-

The subject of the invention is also to be driven down by the in mer 8.

further development of the subject of the invention before between the outer circumference of the hammer 8

beaten device for lubricating the barrel 45 and the inner circumference of the tubular body 1 surface of the tubular body above and is a gap. A number of steel balls 11 are The hammer, guided in balls below, is very compact in circumferential recesses 10 at the top and bottom wear-resistant. arranged lower end of the hammer 8 and lie

To the effect of the movable up and down in contact with the inner circumference of the rohrförmi-impact tool to increase, this can after 50 gen body 1. Therefore, the hammer 8 moves with it Another suggestion by one by means of the shaft using the steel balls 11 rolling up and down without of the drive motor driven rotor in addition that the outer periphery of the hammer 8 and to be turned around. the inner circumference of the tubular body 1 is

The invention will be stirred below with reference to FIG.

Embodiments shown in the drawing 55 In a hole 12 at the bottom of the tubular

described in more detail. In the drawing, body 1 is movable up and down and shows the upper half

1 shows a longitudinal section through the main part of an impact tool 13. The top

of the tool according to one embodiment, the end of this striking tool 13 protrudes into the tubular

Invention, shaped body 1 into it and sits firmly in the central

F i g. 2 shows a longitudinal section (in enlarged tapping 60 of a number of disks 14, which

sees) through the ■ valve part of the oil container, which are located on the bottom of the tubular body 1. Between

is arranged at the upper part of the tool, see the outer periphery of the discs 14 and

F i g. 3 is a longitudinal section (on an enlarged scale on the inner circumference of the tubular body 1)

sees) through the curve part of the invention a gap, and the discs 14 move

Stone working tool, 65 up and down with respect to the tubular body.

F i g. 4 a longitudinal section (on an enlarged scale) At the outer circumference of the lower end of the pipe

view) through the holding part of the shaped body 1 according to the invention, an external thread is formed.

Stone processing tool, in this engages an internal thread of a pipe 15,

3 4

the lower half of the striking tool part of the housing 22 has a threaded hole in the lower, narrow seat that receives the bearing through its central bore 17 at the bottom. An adjusting screw 32 is screwed into the middle part of the striking tool. In there is a collar 16. From this, the concave part of the surface of the adjusting screw extends, the upper and lower halves of the striking mechanism 34, which tied in the concave part at the bottom. End of the shaft 23 is arranged, is supported. The AufWhen the tube 15 from the tubular body 1 receiving part 33 is convex disk-shaped and is removed, the impact tool 13 can be made of hard material, such as. B. Stone.
Hole 12 of the tubular body 1 can be pulled. io Instead of the ball bearing 31, a radial roller bearing can also be used if the tube 15 is used with the lower end of the tube,
Shaped body 1 is screwed after the upper half of the striking tool 13 is arranged in the hole 12 on the housing 22, a drive unit 35 is attached. In the present case, it is an electric motor that has been set, the lower half of which extends and the shaft 36 leading from its rotor is coupled to the percussion tool 13 through the hole 17 and the 15 of the shaft 23. This coupling takes place via collar 16 located between the lower end of the tubular coupling disks 37,38. The conical part of the shaped body 1 and the bottom of the tube 15. lower end of the shaft 36 is in the middle ko-The impact tool 13 is so attached to the lower end niche opening of the clutch disc 37 of the tubular body that the and so that the shaft 36 and the clutch disc is limited vertical movement of the tool. ao 37 connected to one piece. A number of Zap-On a cutout 18 at the upper end of the fen 39, which protrude on the underside of the coupling tube 15 and a concave opening 19 on disk 37 at a distance from the center of part of the outer circumference in the lower area, protrude In elastic tube parts 40 from the tubular body 1, both ends of a rubber od. Ä. Which in a number of Bohrun coil springs 20 are attached. A release will thus be made in the clutch disk 38. The sen of the tube 15 safely prevented. Between the square central opening of the clutch disk 38, container 2 and the tubular body 1, there is also a spring 20 with the square shaft part at the upper end, one end of which is connected to the shaft 23. Thus, the shafts 36 are not directly coupled to one another in a cutout on the lower part of the container 2 and 37, but rather and their other end engages in a concave opening of the connection via the pin 39 of the copper tube-shaped body 1 and thus an unloading disk 37 with the elastic tube parts 40 prevents the intentional loosening by rotation. Clutch disc 38 (see Fig. 7).

To the side of the central part of the tubular body 1. When working with the stone according to the invention, a housing 22 is arranged, in which a cam hammer is first the lower end of the hammer valve shaft 23 is rotatably attached. On this shaft 35 tool 13 is brought up to the object and 23 a tubular curved part 24 is attached, the housing 22, the tubular body 1 with the help of its upper edge in the form of an inclined, screw-shaped handle 25 connected to the drive 35 is. This inclined 41 held. When the drive 35 is switched on, path 25 gradually rises from the beginning α to the shaft 23 rotates in the direction of the arrow, and the end b and falls in a vertical step from 40 roller 29, which is at the beginning at the beginning α of the end b to the beginning a. In the radial section, the helical path 25 of the curved part, path 25, can be designed in two ways: either it now rotates and moves gradually along the path driven by the shaft 23 rotating on an incline relative to the shaft 23, as in FIG. 3, or horizontally, as in Fig. 1 and 5. up. As a result, the hammer 8 is raised together. In the contact area of the housing 22 and 45 with the roller 29 against the force of the spring 7, an all-tubular body 1 is gradually raised.

The roller 29 runs over the end b of the web 25

rather slidably a rectangular sliding part 28 attached to the curve part on which it is at the highest point

is. This is rotatably connected to a shaft 27, and is now together with the hammer 8

soft is attached to the side of the hammer 8. Suddenly downwards at 5 ° due to the force of the spring

protruding end of the shaft 27 is moved behind. The upper end of the striking tool 13

Sliding part 28 rotatably attached to a roller 29, which is forcefully loaded from the lower end of the hammer.

is in engagement with the path 25 of the curve part. strikes and thus acts over the lower end of the

The guide opening 26 is slightly inclined against the striking tool directly on the tool to be machined

located above the direction in which the screw 55 object.

Ben-shaped path 25 of the cam part when turning into the roller 29, which comes into contact with the roller 29 from the end b of the path 25, as in FIG. 6 was lowered, is now shown from the beginning α of the path. The guide opening 26 can also be gradually raised again, as above arranged at right angles. Then the outer one is written. By rotating the curve part 24 circumference of the roller 29 in this case for a web 60, the operation shown is repeated; the 25 of Figure 3 is spherical; for a web hammer 8 is repeatedly applied to the upper end 25 according to FIGS. 1 and 5, the role can be a straight, the striking tool 13; the cylindrical circumferential surface to be machined. object is smashed perfectly.

The lower part 30 of the shaft 23 has an ab- When the hammer 8 moves up and down, com-

set smaller diameter at which the inner 65 men the steel balls 11 in rolling contact with

Ring of a radial ball bearing 31 is arranged on the inner circumference of the tubular body 1

while the outer ring of this ball bearing 31 and thereby reduce the frictional resistance. That

lower part of the housing 22 is attached. Furthermore, valve 4 in container 2 swings due to the violent

5 6

vertical movement of the tubular body 1, the pin 39 engaged in the elastic tubes 40 in the also in the vertical direction. This opens and coupling part of the disc 36, so that the vibration the oil hole 3 closes intermittently, and that of the shaft 23 only to a very small extent on the Oil in tank 2 drips through oil hole 3 and causes shaft 36 to be transmitted. Hence it becomes a harmful one a lubrication between the tubular body 5 influence due to the vibration on the with the shaft per 1 and the hammer 8, so that this is a connected rotor, on the bearing of the shaft Moved up and down without a wall. 36 etc. largely avoided. Besides, the

If the hammer 8 falls off and the upper end of the main part of the drive 35 is not directly connected to the of the impact tool 13 is applied, this tubular body 1 and the housing 22 is verbunetwa up to the upper end of the panes 14, but it is a vibration-damping rubber ben, and the hammer 8 acts on the upper end provided on the main part of the drive 35, of these discs. In the meantime, instead of the electric motor, the drive 35 can also be found

Container 2 dripping oil in the lower part of a hydraulic or pneumatic drive pre-tubular Body 1 and forms an oil film between be seen.

see the individual discs 14. If the upper 15 Furthermore, the drive can also be at one end the disks 14 acted upon by the hammer 8, the body of which is arranged, and the drive and the individual disks 14 come into close contact with the shaft then via a flexible shaft with each other and as a result have connected with each other.

a buffer effect between the oil. The execution according to FIG. 8 and 9 is similar

this buffer effect between the disks 14 has 20 that according to the previous figures, the device according to the invention despite being effective in this embodiment (FIGS. 8 and 9), however

Impact work long life; the spring makes the striking tool 13 rotatable, not additionally loaded and cannot damage the lower part of the collar 16 of the striking mechanism

experience. Since part of the oil gradually enters the tool 13 as a hexagonal engaging part 42 is punched out 12 arrives and thus the striking tool 13 forms 25 and can be moved up and down in a hexagonal and lubricates the hole II, the wear of this opening 44 of a rotor 43 is stored and together Parts considerably reduced. If the lower one rotates with this one.

The end of the hammer 8 with the disks 14 in the The rotor 43 consists of two in longitudinal section

If there is contact, the arrangement is such that parts (FIG. 9) and a pair of bolts 45 are closed the sliding part 28 has not yet connected the lower end of the guide 30 to a tubular body. Will the rungsöffmmg has reached 26. When the bolt 45 is removed, the rotor 43 splits into two

The roller 29 and the sliding part 28 are made by parts.

the rotating track 25 of the cam part is attached to the outer periphery of the lower part of the

lifted so that when the track 25 is rotated in the arrow tubular body 1, a cylinder 46 is rotatable direction (Fig. 6) and the lifting of the roller 29 35 arranged, the lower part of which by a holding right Hand an angled upward force ring 47 is prevented from sliding down. Of the acts on the roller 29. When the guide opening, the retaining ring 47 releasably engages in a recess on the 26, as in FIG. 6 shown, obliquely upward - outer circumference of the lower end of the tubular tends, the frictional resistance is greater at body 1 a ..

lift the slide member 28, and the up and down 40 At the upper part of the cylinder 46 is a gear movement of the slide 28 becomes smoother. The track 25 of the 48 attached, which meshes with a gear 49, The part of the curve is, with regard to the inner and outer, that at the lower end of the circumferential speeds via the housing 22 differently trained; protruding shaft 23 is attached. when the track 25 is inclined so that the inner side of the rotor 43 is on the outside of the cylinder

is higher (Fig. 3), and when the outer periphery of the 45 46 fastened, and by the 'pressing force of the bolts Roller 29 is spherical, the track 45, rotor 43 and cylinder 46 come in one piece 25 of the curve part and the outer periphery of the roller connected.

29 theoretically in point contact, and their movement The lower end of the striking tool 13 is in

supply is harmonious without distortion of friction present embodiment as a detachable part or sliding as a result of the difference in circumferential 50 50 formed whose upper end in a conical speed. Since the roller 29 is pressed against the opening on the lower part of the striking tool If web 25 is applied, part of the load is attached to the 13.

Transfer shaft 23. If now the lower end of the In this case extends a slot opening

Shaft23 is received by a thrust bearing, 51 through the conical hole (Fig. 8) at the bottom there is a risk of premature damage 55 the end of the striking tool 13. Should the part 50 entdes Camp. However, if the lower end of the shaft is removed, the head of that part will be replaced by a 23 by a radial ball bearing 31 from the steel wedge inserted in the slot opening 51 downwards ball34 and pressed onto the hard receiving part 33. Part 50 still has an exception, so the partial load from the bearing 31 and the thread, in which a nut 52 engages. By vertical component of the load from the steel ball 60 rotation of this nut 52 allows the part 50 to be ent-34 and the receiving part 33 received so that distant.

a corresponding load distribution results. Therefore, the impact tool 13 consists essentially

damage to the bearing is avoided. The shaft 23, made of the same material as in the preceding, suffers violent vibrations as the roller embodiment. When the shaft 23 rotates, which drives the gears 48 and 49 with the path 25 of the cam part in both 65 and is thus in contact, from the end b to the beginning α of the cylinder 46, the rotor 43 and the Blow track falls down. The clutch disks 37 and 38 tool 13 set in rotation. At the same time, however, have a buffer effect due to the impact of the hammer 8 repeatedly on the upper one

End of the striking tool 13 and moves the part against the material to be machined.

Since the striking tool 13 slides with its engaging part 42 in the opening 44, the application movement of the hammer 8 correctly transferred to the part 50 via the striking tool 13.

According to this embodiment, the impact tool 13 is rotated into the to be machined Material driven, so that there is a very high machining effect.

Claims (5)

Patent claims: 1. Impact device with a tubular body in which a spring can be pressed down Hammer is arranged movable up and down, as well as having one at the lower end of the tubular Body up and down movable percussion tool, the upper end of which can be acted upon by the hammer, characterized in that that a laterally of the hammer (8) arranged roller (29) on a hammer lifting, by a drive motor (35) on a shaft (23) rotatable, in a laterally and approximately in the middle of the tubular body (1) flanged housing (22) arranged curve part (24) rests, the curve part (24) having a helical path (25) on the upper part of the Has shaft (23), and that a sliding part (28) connected to the roller (29) in a direction of rotation of the cam part (24) inclined guide opening (26) in the housing (22) is arranged movable up and down. 2. Impact device according to claim 1, characterized by one placed on the tubular body Oil container (2) with an oil opening (3) leading into the tubular body (1), which can be opened intermittently via a valve (4) that oscillates during the working movement and close is. 3. Impact device according to claim 1, characterized by a number of steel balls (11), which in the upper and lower part of the outer circumference of the hammer (8) in circumferential recesses (10) are arranged and with the inside of the tubular body (1) in contact stand. 4. Impact device according to claim 1, characterized in that the helical path (25) of the curve part (24) is formed higher in cross section on the side of the shaft (23) and that the outer periphery of the roller (29), which is in contact with the inclined track (25), is spherical (Fig. 3). 5. Impact device according to claim 1 to 3, characterized in that one on the tubular body (1) arranged rotor (43) can be driven by the shaft (23), which is attached to the rotor (43), up and down movable impact tool (13, 50) set in rotation. 1 sheet of drawings 809 640/1185