CN201457211U - Drive mechanism of winch belt shaft - Google Patents

Abstract

The utility model provides a drive device for a winch belt shaft, which belongs to the technical field of machinery. The utility model solves the technical problems such as complicated structure and poor use stability of the existing drive device of the belt shaft of the winch. The driving device of the belt shaft of the winch is arranged at the extension end of the belt shaft on the side of the winch support. The mechanism includes a fixed seat and a rotating body. The end sleeve is on the fixed seat, the end of the rotating body has a socket, and a spring is arranged between the rotating body and the fixing seat, and the end surface of the rotating body and the outer end surface of the fixing seat are fitted together under the elastic force of the spring, and the end surface of the rotating body and the outer end surface of the fixing seat are fitted together. There is a one-way clutch mechanism formed between the outer end faces of the fixed seat through the meshing of one-way teeth on the surface. Through the one-way clutch mechanism, the rotating body can only rotate in one direction to drive the fixed seat to rotate together. . The utility model has the advantages of higher stability, more convenient installation and maintenance, and the like.

Description

Drive mechanism of winch belt shaft

technical field

The utility model belongs to the technical field of machinery, and relates to a winch, in particular to a drive mechanism for a winch belt shaft.

Background technique

In the process of transporting goods by car, the goods usually need to be bundled to prevent the goods from falling off or colliding with each other when the car is driving, resulting in loss or damage. Although the method of directly binding with ropes is very common, it is time-consuming and laborious, and it is difficult to tie the goods tightly. A winch is an advanced lashing tool. It is convenient and safe to use a winch to bind goods, and is very popular among drivers.

Existing winches usually consist of a bracket, a belt shaft, a binding belt and a driving device for the winch belt shaft. The belt shaft is connected to the bracket and the belt shaft is rotatable, and the binding belt is wound on the belt shaft. A crowbar hole is provided at the outer end of the belt shaft protruding out from the bracket.

The driving device of the winch belt shaft is the core part of the winch and plays an important role in the use of the winch. The structure of the driving device of the current common winch belt shaft is like this: as Chinese patent (application number: 200410052805.7) discloses a kind of fast rotation device of the winch belt shaft, comprising a fixed seat and a rotating body, the fixed seat and the belt The shafts are fixed together, the rotating body is sleeved on the side of the fixed seat, and a one-way linkage mechanism is provided at the contact surface between the fixed seat and the rotating body, and there is at least one prying hole on the rotating body. The one-way linkage mechanism of this patent includes several spring holes on the rotating body at the contact surface between the rotating body and the fixed seat. Each spring hole is equipped with a spring and a push post from the inside to the outside. Under the action of the action, the item is pressed on the side of the fixed seat, and the side of the fixed seat is provided with a chute with the same number and corresponding position as the spring hole. The slope to the side surface of the fixed seat, and the other side is a straight surface perpendicular to the side surface of the fixed seat.

During the use of the above-mentioned patent, it is necessary to use multiple sets of chute slopes, springs and push columns to realize the unidirectional driving of the rotating body to rotate the fixed seat, thereby driving the rotation of the belt shaft. Such a structure has the following disadvantages: 1. Since the springs are relatively small and the number required is relatively large, it brings great inconvenience to installation and the structure is relatively complicated; 2. During use, due to the number of springs There are many, and it is impossible to guarantee that each spring can be used normally. Once one of the springs fails, all springs must be checked and replaced, which brings great inconvenience to maintenance.

Contents of the invention

The purpose of the utility model is to solve the above-mentioned problems existing in the prior art, and provide a driving device for a winch belt shaft with a simple structure and higher stability in use.

The purpose of this utility model can be achieved through the following technical solutions: a driving device for a winch belt shaft, which is arranged on the belt shaft extension end of the side part of the winch support, the mechanism includes a fixed seat and a rotating body, and the fixed seat and the belt shaft extend The outlet ends are connected by a connection structure, the inner end of the rotating body is sleeved on the fixed seat, and the outer end of the rotating body has a jack, and it is characterized in that a spring is arranged between the rotating body and the fixed seat, and the elastic force of the spring Under the action, the end surface in the rotating body and the outer end surface of the fixed seat are attached to each other, and there is a single tooth formed between the end surface in the rotating body and the outer end surface of the fixed seat. To the clutch mechanism, through the one-way clutch mechanism, the rotating body can only rotate in one direction to drive the fixed seat to rotate together.

In the driving mechanism of the winch belt shaft, the rotating body is rotated by the crowbar inserted in the socket. When the rotating body is rotating in one direction, the rotation of the fixed seat is driven by the one-way clutch mechanism. Obviously, the rotating body It can drive the belt shaft to rotate and tighten the binding belt on the belt shaft.

When the rotating body is reversely rotated, the rotating body cannot drive the belt shaft to rotate under the action of the one-way clutch mechanism during the rotating process.

It can be seen that when the cargo is bound, the operator swings the crowbar back and forth to drive the belt shaft to rotate in one direction, thereby continuously tightening the binding belt on the belt shaft.

In the above-mentioned drive device for the belt shaft of the winch, the connection structure is that the fixing seat is directly fixedly connected with the extension end of the belt shaft by welding. The fixed seat is fixedly connected with the extension end of the belt shaft by welding, so that the rotation of the fixed seat can drive the rotation of the belt shaft.

There are many schemes for the specific structure of the one-way clutch mechanism:

As a first solution, in the drive mechanism of the above-mentioned winch belt shaft, the one-way clutch mechanism is a plurality of ratchets integrated with the rotating body and a plurality of ratchets integrated with the fixed seat, and the fixed seat The teeth of the ratchet at the rotating body are inclined in the opposite direction.

The teeth of the ratchet at the rotating body and the teeth of the ratchet at the fixed seat are used together. During the rotation of the rotating body, the teeth of the ratchet on the rotating body drive the teeth of the ratchet on the fixing seat, and then drive the fixing seat to rotate. Because the inclination direction of the teeth of the ratchet at the fixed seat and the ratchet at the rotating body is opposite, the ratchet at the rotating body can only drive the ratchet at the fixed seat when it rotates in one direction.

As a second solution, in the above-mentioned driving mechanism of the winch belt shaft, the one-way clutch mechanism is a plurality of ratchets integrally connected with the rotating body and a convex body protruding from the end of the fixed seat. During the rotation of the rotating body, the teeth of the ratchet on the rotating body drive the convex body, and then drive the rotation of the fixed seat. Since the teeth of the ratchet are all facing one direction, only when the ratchet of the rotating body rotates in one direction can it drive the rotation of the fixed seat.

As a third solution, in the above-mentioned driving mechanism of the winch belt shaft, the one-way clutch mechanism is a convex body protruding from the end of the rotating body and a plurality of ratchets integrally connected with the rotating body. During the rotating process of the rotating body, the teeth of the ratchet at the fixing seat are driven by the convex body, thereby driving the rotation of the fixing seat. Since the teeth of the ratchet all face one direction, the convex body at the end of the rotating body can drive the rotation of the fixed seat only when it rotates in one direction.

In the above-mentioned driving mechanism of the winch belt shaft, the number of said spring is one. Only one spring acts between the rotating body and the fixed seat, so that the rotating body and the fixed seat abut against each other, making the structure simpler and more convenient for installation and maintenance.

In the drive mechanism of the above-mentioned drawworks belt shaft, a sealing ring is sheathed on the outer side of the fixed seat and the rotating body, and the sealing ring seals the joint between the fixed seat and the rotating body. The connection between the fixed seat and the rotating body is sealed by a sealing ring to prevent external dust, impurities and other pollutants from entering.

In the driving mechanism of the above-mentioned winch belt shaft, the end of the fixed seat has a protruding spring column, and there is a protruding shoulder at the end of the spring column, the above-mentioned spring is sleeved on the spring column and the spring The two ends respectively act on the end in the rotating body and the shoulder. Specifically, one end of the spring acts on the inner end of the rotating body, and the other end acts on the fixed seat through the shoulder. That is to say, the ends of the fixed seat and the rotating body abut against each other under the elastic force of the spring.

In the above-mentioned driving mechanism of the winch belt shaft, a sealing ring is provided between the blocking shoulder and the rotating body, and the sealing ring is sleeved on the blocking shoulder. The connection between the retaining shoulder and the rotating body is sealed by the sealing ring to prevent external dirt from entering.

In the above-mentioned drive mechanism of the winch belt shaft, the shoulder is disc-shaped, and the shoulder is fixedly connected to the end of the spring column by screws and the edge of the shoulder protrudes from the spring column. The disc-shaped shoulder is passed through the screw It is fixed at the end of the spring column to make the connection between the two more firm. The edge of the shoulder extends out of the spring column, and the shoulder of the protruding part can be used to connect with the spring.

In the above-mentioned driving mechanism of the winch belt shaft, the side part of the rotating body has an oil filling hole, and the oil filling hole communicates with the sealing ring and the cavity formed between the sealing ring. Inject lubricating grease into the cavity through the oil hole to lubricate the ratchet and spring.

In the above-mentioned drive mechanism of the winch belt shaft, the inner end of the rotating body has a retaining edge protruding inward, the spring column is also covered with a washer, and the washer is tightly pressed between the spring and the retaining edge. . The bearing area of the retaining edge is increased by the washer.

As another situation, in the driving mechanism of the above-mentioned winch belt shaft, the connection structure includes several through holes on the extension end of the belt shaft, and there is a concave hole at the end of the fixing seat that can accommodate the extension end of the above-mentioned belt shaft. cavity, the side wall of the concave cavity is provided with through holes with the same number and corresponding positions as the through holes at the extension end of the above-mentioned belt shaft, and there is also a hole that can be inserted between the above-mentioned concave cavity and the extension end of the belt shaft Several pins in the through holes.

Through the through hole on the fixed seat and the through hole on the extension end of the shaft of the winch, the two can be easily connected; that is to say, the pin is located on the through hole on the fixed seat and the through hole on the extension end of the belt shaft at the same time. When this drive mechanism is installed on the belt shaft of the winch conveniently; when the drive mechanism needs to be dismantled, just pull out the pin from the through hole; in addition, the rotating body of the ordinary winch can also be placed in the cavity , and then the rotating body of the common winch is fixedly connected with the fixed seat in the drive mechanism of the winch belt shaft by the bolt. To realize the ordinary winch, it only needs to swing the crowbar back and forth to drive the belt shaft to rotate in one direction, and the binding belt on the belt shaft can be continuously tightened.

In the above-mentioned drive mechanism of the winch belt shaft, there are four through holes on the fixed seat and the through holes at the extension end of the belt shaft, and there are two latch pins. The two bolts are inserted into the four through holes in a cross shape, and the fixed seat and the belt shaft are better fixedly connected together.

Compared with the prior art, the driving mechanism of the belt shaft of the winch realizes the unidirectional driving of the rotating body to rotate the fixed seat through a plurality of ratchets connected with the rotating body and a plurality of ratchets connected with the fixed seat, so that This mechanism is more stable in use; and only one spring is needed between the rotating body and the fixed seat of the driving mechanism of the winch belt shaft, which makes the structure of the mechanism simpler and facilitates installation and maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of the driving mechanism of the belt shaft of the winch.

Fig. 2 is a three-dimensional structure schematic diagram of the winch of the drive mechanism of the winch belt shaft.

Fig. 3 is a partial structural schematic diagram of the first scheme of the driving mechanism of the winch belt shaft.

Fig. 4 is a schematic diagram of the partial structure of the second scheme of the driving mechanism of the belt shaft of the winch.

Fig. 5 is a partial structural schematic diagram of the third scheme of the driving mechanism of the winch belt shaft.

Fig. 6 is a structural schematic diagram of the drive mechanism fixing seat of the winch belt shaft.

In the figure, 1, winch bracket; 2, belt shaft; 3, fixed seat; 3a, through hole; 3b, concave cavity; 4, rotating body; 4a, jack; 4b, oiling hole; 5, spring; Teeth; 7, convex body; 8, sealing ring; 9, spring column; 9a, retaining shoulder; 10, sealing ring.

Detailed ways

Embodiment one:

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, further describe the technical solution of the utility model, but the utility model is not limited to these embodiments.

As shown in FIG. 2 , the winch includes a winch support 1 , a belt shaft 2 and a binding belt and the like. The belt shaft 2 is connected to the winch support 1, and the belt shaft 2 can rotate around its axial direction, and the binding belt is wound on the belt shaft 2.

As shown in Fig. 1 and Fig. 3, the driving device of the belt shaft of the winch is arranged on the extension end of the belt shaft 2 on the side of the winch bracket 1, and the mechanism includes a fixed seat 3 and a rotating body 4, and the fixed seat 3 is fixedly connected to the belt shaft. The extension end of the shaft 2, the inner end of the rotating body 4 is sleeved on the fixed seat 3, the outer end of the rotating body 4 has a jack 4a, and a spring 5 is arranged between the rotating body 4 and the fixed seat 3, and the spring 5 Under the action of elastic force, the inner end surface of the rotating body 4 and the outer end surface of the fixed seat 3 are fitted together, and a one-way tooth passing through the surface is arranged between the inner end surface of the rotating body 4 and the outer end surface of the fixed seat 3. The teeth are meshed to form a one-way clutch mechanism. Through the one-way clutch mechanism, the rotating body 4 can only rotate in one direction to drive the fixed seat 3 to rotate together.

Specifically, the one-way clutch mechanism in the driving device of the winch belt shaft is six ratchets 6 connected with the rotating body 4 and six ratchets 6 connected with the fixed seat 3, and the fixed seat 3 The ratchet 6 at the position is opposite to the tooth inclination direction of the ratchet 6 at the rotating body 4 place. The teeth of the ratchet 6 at the 4 places of the rotating body and the teeth of the ratchet 6 at the fixed seat 3 are used together. During the rotation of the rotating body 4, the teeth of the ratchet 6 at the 4 places of the rotating body are used to drive and fix The teeth of the ratchet 6 at the seat 3, and then drive the rotation of the fixed seat 3. Because the inclination direction of the ratchet 6 at the fixed seat 3 is opposite to that of the ratchet 6 at the rotating body 4, the ratchet 6 at the rotating body 4 can only drive the ratchet at the fixed seat 3 when it rotates in one direction. Ratchet 6.

In the driving mechanism of the belt shaft of the winch, the number of the spring 5 is one. Only one spring acts between the rotating body and the fixed seat, so that the rotating body and the fixed seat abut against each other, making the structure simpler and more convenient for installation and maintenance.

A seal ring 8 is sheathed on the outer side of the fixed seat 3 and the rotating body 4 , and the sealing ring 8 seals the joint between the fixed seat 3 and the rotating body 4 . The connection between the fixed seat 3 and the rotating body 4 is sealed by the sealing ring 8 to prevent dust, impurities and other pollutants from entering. There is a protruding spring column 9 at the end of the fixed seat 3, and a protruding shoulder 9a is provided at the end of the spring column 9. The above-mentioned spring 5 is sleeved on the spring column 9 and the two ends of the spring 5 act on the rotation respectively. On the inner end of the body 4 and the shoulder 9a. Specifically, one end of the spring 5 acts on the inner end of the rotating body 4, and the other end acts on the fixed seat 3 through the shoulder 9a. That is to say, the ends of the fixed seat 3 and the rotating body 4 are pressed against each other under the elastic force of the spring 5 .

A sealing ring 10 is provided between the shoulder 9a and the rotating body 4, and the sealing ring 10 is sleeved on the shoulder 9a. The sealing ring 10 forms a seal between the retaining shoulder 9a and the rotating body 4 to prevent external dirt from entering. The shoulder 9a is in the shape of a disk, and the shoulder 9a is fixedly connected to the end of the spring column 9 by screws and the edge part of the shoulder 9a protrudes from the spring column 9 . The disc-shaped shoulder 9a is fixedly connected to the end of the spring column 9 by screws, so that the two are connected more firmly. The spring column 9 protrudes from the edge of the shoulder 9a, and the shoulder 9a of the protruding part can be used to connect with the spring 5 .

There is an oil filling hole 4 b on the side of the rotating body 4 , and the oil filling hole 4 b communicates with the cavity formed between the sealing ring 10 and the sealing ring 8 . Grease is injected into the cavity through the oil filling hole 4b, so that the ratchet 6 and the spring 5 are lubricated. At the inner end of the rotating body 4 there is a rim protruding inward. The spring column 9 is also covered with a washer, and the washer is tightly pressed between the spring 5 and the rim. The bearing area of the retaining edge is increased by the washer.

In the driving mechanism of the belt shaft of the winch, the rotating body 4 is rotated by the crowbar inserted in the socket 4a. When the rotating body 4 is rotating in one direction, the rotation of the fixed seat 3 is driven by the one-way clutch mechanism. Obviously , turning the rotating body 3 can drive the belt shaft 2 to rotate, and tighten the binding belt on the belt shaft 2. When the rotating body 4 is rotated in the opposite direction, the rotating body 4 will be driven by the one-way clutch mechanism during the rotating process. It cannot drive the belt shaft 2 to rotate. It can be seen that the operator swings the crowbar back and forth when bundling the goods, which can drive the belt shaft 2 to rotate in one direction, thereby continuously tightening the binding belt on the belt shaft 2.

Embodiment two:

The content in the second embodiment is roughly the same as that in the first embodiment, except that the one-way clutch mechanism in the driving device in the first embodiment is six ratchets 6 and six A ratchet 6 integrated with the fixed seat 3, and the ratchet 6 at the fixed seat 3 is opposite to the tooth inclination direction of the ratchet 6 at the rotating body 4. The one-way clutch mechanism in the second embodiment (as shown in FIG. 4 ) is composed of six ratchets 6 integrally connected with the rotating body 4 and a convex body 7 protruding from the end of the fixed seat 3 . The rotation of the rotating body 4 drives the convex body 7 through the teeth of the ratchet 6 at the rotating body 4 , and then drives the rotation of the fixed seat 3 . Since the teeth of the ratchet 6 are all facing one direction, only when the ratchet 6 of the rotating body 4 rotates in one direction can it drive the rotation of the fixed seat 3 .

Embodiment three:

The content in the third embodiment is roughly the same as that in the first embodiment, the difference is that the one-way clutch mechanism in the driving device in the first embodiment is six ratchets 6 and six ratchets 6 connected with the rotating body 4 A ratchet 6 integrated with the fixed seat 3, and the ratchet 6 at the fixed seat 3 is opposite to the tooth inclination direction of the ratchet 6 at the rotating body 4. The one-way clutch mechanism in the third embodiment (as shown in FIG. 5 ) is a convex body 7 protruding from the end of the rotating body 4 and six ratchets 6 integrally connected with the rotating body 4 . The rotation of the rotating body 4 drives the teeth of the ratchet 6 at the fixed seat 3 through the convex body 7 , and then drives the rotation of the fixed seat 3 . Since the teeth of the ratchet 6 all face one direction, the convex body 7 at the end of the rotating body 4 can drive the rotation of the fixed seat 3 only when it rotates in one direction.

Embodiment four:

The content in the fourth embodiment is roughly the same as that in the first embodiment, the difference is that the connection structure in the first embodiment is that the fixing seat 3 is directly fixedly connected with the extension end of the belt shaft by welding; the fourth embodiment The connection structure in (as shown in Figure 6) includes several through holes on the extended end of the tape shaft, and a concave cavity 3b capable of accommodating the extended end of the above-mentioned tape shaft is provided at the end of the fixing seat 3, and on the side wall of the concave cavity 3b There are through holes 3a with the same number and corresponding positions as the through holes at the extension end of the above-mentioned belt shaft. Between the above-mentioned concave cavity 3b and the extension end of the belt shaft, there are also several through holes that can be inserted into the two through holes at the same time. root latch. Specifically, there are four through holes 3a on the fixed seat 3 and four through holes at the extension end of the belt shaft, and there are two bolts, and the two bolts are cross-shaped and inserted in the four through holes, so that the fixed seat 3 It is better fixed together with the belt shaft 2.

Through the through hole on the fixed seat 3 and the through hole at the extension end of the belt shaft 2 of the winch, the two can be connected easily; When the through hole at the end, the drive mechanism is conveniently installed on the winch belt shaft 2; when the drive mechanism needs to be removed, just pull out the pin from the through hole; in addition, the rotating body of the common winch Put it in the concave cavity 3b, and then the rotating body of the common winch and the fixed seat 3 in the driving mechanism of the winch belt shaft 2 are fixedly connected together by the bolt. To realize the ordinary winch, it only needs to swing the crowbar back and forth to drive the belt shaft 2 to rotate in one direction, and the binding belt on the belt shaft 2 can be continuously tightened.

The specific embodiments described herein are only examples to illustrate the spirit of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but they will not deviate from the spirit of the utility model or go beyond the definition of the appended claims range.

Although this paper uses more 1, winch bracket; 2, belt shaft; 3, fixed seat; 3a, through hole; 3b, concave cavity; 4, rotating body; 4a, socket; 4b, oil hole; 5, spring ; 6, ratchet; 7, convex body; 8, sealing ring; 9, spring column; 9a, shoulder; 10, sealing ring and other terms, but the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional restrictions is against the spirit of the utility model.

Claims (10)

1. the driver train of a winch belt shaft, be arranged at tape spool (2) external part of winch support (1) sidepiece, this mechanism comprises permanent seat (3) and rotor (4), link to each other by a connection structure between permanent seat (3) and tape spool (2) external part, the inner of rotor (4) is enclosed within on the permanent seat (3), rotor (4) outer end has jack (4a), it is characterized in that, be provided with spring (5) between described rotor (4) and the permanent seat (3), the outer face of described rotor (4) inner end surface and permanent seat (3) fits together mutually under the elastic force effect of spring (5), be provided with an one-way clutch mechanism that is meshed and forms by its surperficial unidirectional teeth between the outer face of described rotor (4) inner end surface and permanent seat (3), make rotor (4) to rotate by this one-way clutch mechanism and could drive permanent seat (3) and rotate together along one of them direction.

2. the driver train of winch belt shaft according to claim 1 is characterized in that, described connection structure is that permanent seat (3) directly is connected with tape spool (2) external part mutually by the mode of welding.

3. the driver train of winch belt shaft according to claim 2, it is characterized in that, described one-way clutch mechanism is ratchet (6) and the ratchets (6) some and that permanent seat (3) is connected as a single entity that some and rotor (4) are connected as a single entity, and the teeth direction of tilt of the ratchet (6) located of the ratchet (6) located of permanent seat (3) and rotor (4) is opposite.

4. the driver train of winch belt shaft according to claim 2 is characterized in that, described one-way clutch mechanism is the ratchet (6) that is connected as a single entity of some and rotor (4) and the convex body (7) that protrudes from permanent seat (3) end.

5. the driver train of winch belt shaft according to claim 2 is characterized in that, described one-way clutch mechanism is for protruding from the convex body (7) and the ratchet (6) some and that rotor (4) is connected as a single entity of rotor (4) end.

6. according to the driver train of claim 1 or 2 or 3 or 4 or 5 described winch belt shafts, it is characterized in that the quantity of described spring (5) is one.

7. according to the driver train of claim 1 or 2 or 3 or 4 or 5 described winch belt shafts, it is characterized in that, described permanent seat (3) is with seal ring (8) with the outside of rotor (4), and seal ring (8) is with the junction sealing of permanent seat (3) with rotor (4).

8. the driver train of winch belt shaft according to claim 6, it is characterized in that, described permanent seat (3) end has the spring bearing (9) of protrusion, and the shoulder block (9a) that has protrusion in the end of spring bearing (9), above-mentioned spring (5) are enclosed within, and spring bearing (9) is gone up and the two ends of spring (5) act on respectively on rotor (4) the inner and the shoulder block (9a).

9. the driver train of winch belt shaft according to claim 8 is characterized in that, is provided with seal ring (10) between described shoulder block (9a) and the rotor (4), and described seal ring (10) is enclosed within shoulder block (9a) and locates.

10. the driver train of winch belt shaft according to claim 9 is characterized in that, (9a) is in the form of annular discs for described shoulder block, and shoulder block (9a) is connected in spring bearing (9) end by screw and shoulder block (9a) edge part is stretched out spring bearing (9).

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