KR102185483B1 - Auto Tensioner for Chain of Traction type Compost Sprayer - Google Patents

Abstract

The present invention relates to an apparatus of automatically adjusting chain tension of a towing-type compost spray device. The apparatus of automatically adjusting chain tension of a towing-type compost spray device comprises: a bearing block having a take-up bearing supporting a sprocket shaft of a sprocket to which a transport chain is coupled to be rotatable; bearing support brackets installed on both sides of an outer wall of a loading box and provided with guide grooves in the front and rear directions through which the sprocket shaft passes; a tension adjusting bolt having one end coupled to the bearing block and disposed in the longitudinal direction of the loading box; a tension control spring provided on the outside of the tension control bolt to elastically press the bearing block; a fixing bracket installed on the outer wall of the loading box at a predetermined distance from the bearing support bracket to support the rear end of the tension control bolt and elastically support the tension control spring; and a nut-shaped stopper member fastened to the rear end of the tension control bolt and in contact with the fixing bracket to limit the movement of the tension control bolt. According to the present invention, the apparatus of automatically adjusting chain tension of a towing-type compost spray device is characterized in that when tension of a transport chain constituting a compost transport device is weakened as the number of uses increases, the tension of the transport chain is increased by moving a sprocket shaft of the transport chain forward by means of a tension control spring, and thus, the tension of the transport chain is automatically adjusted without any separate operation, thereby preventing the separation of the transport chain caused by tension weakening, and therefore, frictional noise and mechanical damage can be reduced.

Description

Automatic Tensioner for Chain of Traction type Compost Sprayer

The present invention relates to a traction type compost spreader chain tension automatic adjustment device, and more particularly, in a traction type manure spreader, tension is applied to the conveying chain using a spring so that the tension of the conveying chain for transporting compost from the loading bin is kept constant. In addition, the present invention relates to a traction type manure spreader chain tension automatic adjustment device that prevents damage to the compost transfer device due to unbalanced loading of compost by restricting the bearing supporting the sprocket shaft of the transfer chain from moving in the reverse direction.

Compost is a type of fertilizer formed by accumulating straw, weeds, fallen leaves, etc., and the content of fertilizer and the effect of fertilizer varies depending on the type of material and the fermentation method, but generally has a low nitrogen content. . However, compost has many elements that are beneficial to the growth of field crops, and is also very good for increasing intelligence, so crop cultivation farmers spray compost on fields. In particular, in recent years, as the number of farmers who cultivate crops using organic methods increases, the amount of compost is increasing day by day.

Although such compost is a nutrient good for the growth of field crops, it is bulky, heavy, and generates a severe odor, so it is sprayed using a machine rather than a person directly.

On the other hand, as a device for mechanically spraying compost in farms, a means of using a cultivator widely supplied to farms or a freight vehicle produced for agriculture has been proposed. However, in the case of using a cultivator, there is a structurally complex problem such as having to additionally mount a separate power device in order to use the power that drives the wheel for other purposes. On the other hand, agricultural freight vehicles have the advantage of being able to pull the manure spreader using the power generated from the engine, as well as operating the manure spreader using the power shaft protruding from the outside.

This traction-type compost spreader is connected to a tractor, etc. to transport compost and spread evenly. As shown in FIG. 1, it has a joint part 110 and a wheel 120 for connecting to the tractor, and A loading bin 100 that can be loaded, a compost transfer device 130 for transferring the compost loaded in the loading bin 100 to the rear side of the loading bin 100 by a certain amount, and the compost transfer device 130 It includes a beater 140 for crushing compost and spreading, and a driving source (not shown) for driving the compost transfer device 130 and the beater 140.

And, the compost transfer device 130 is made of a transfer chain 131 installed on both sides of the bottom of the loading bin 100 and several transfer bars 132 connected to both ends of the transfer chain 131, and the transfer chain The compost is transferred to the rear part of the loading tray 100 using the transfer bar 132 while 131 is coupled to a sprocket rotatably installed at the rear end of the loading tray 100 and moving.

In the above-described traction-type compost spreader, compost is loaded in the loading box 100, and the loaded compost is transferred to the rear part of the loading box 100 by the compost transfer device 130 provided in the loading box 100, and the transferred compost is loaded. While being crushed finely by the beater 140 located at the rear part of the 100, it is spread to the ground.

However, the tension between the chain members constituting the transfer chain 131 is weakened due to the increase in the number of use of the transfer chain 131, and the transfer chain 131 is coupled to the sprocket. In the process of being rotated, the chain member may be separated and separated, or the compost transfer device 130 may not operate normally due to an imbalance in tension between the left and right transfer chains 131. In addition, when the chain member is separated from the transfer chain 131 and separated, noise is generated and mechanical damage occurs due to the detached chain member, as well as the compost spraying operation is stopped, thereby reducing work efficiency.

Accordingly, the take-up device 150 for adjusting the tension of the transport chain 131 by adjusting the position of the bearing supporting the sprocket shaft to which the sprocket to which the transport chain 131 is coupled is coupled is provided on both front sides of the loading box 100 It is equipped.

However, the conventional traction type compost spreader manually adjusts the take-up device to adjust the tension of the transport chain, so it is inconvenient to use and it is difficult to maintain the tension of the left and right transport chains evenly when compost is unevenly loaded. There is a problem that is not easy.

Korea Open Utility Model No. 20-1999-00038501 Korean Utility Model Registration No. 20-0273046 Korean Utility Model Registration No. 20-0282467 Korean Utility Model Registration No. 20-0361581 Korean Utility Model Registration No. 20-0384679

The present invention was conceived to solve the problems of the prior art as described above, and the traction type compost spreader chain tension automatic adjustment device according to the present invention automatically adjusts the tension of the transport chain using the elastic force of springs on both sides of the loading box. The task is to ensure that the tension of the transport chain can be uniformly maintained regardless of the period of use by installing the auto tensioner to eliminate the balance of tension between the left and right transport chains.

In addition, the take-up bearing that supports the sprocket shaft of the sprocket to which the transfer chain is coupled can only move in a direction that strengthens the tension of the transfer chain, so even if there is a difference in the load applied to the left and right transfer chains due to the compost loading imbalance, take-up. Another task is to prevent the tension change of the conveying chain due to the endless movement of the bearing.

According to the automatic tension control device for a traction-type compost spreader chain according to the present invention for achieving the above object, a traction-type compost spreader chain that is installed in a traction-type compost spreader and controls the tension of a transfer chain of a compost transfer device that transfers compost from a loading bin to the rear A tension automatic adjustment device, comprising: a bearing block having a take-up bearing rotatably supporting a sprocket shaft of a sprocket to which a transfer chain is coupled; Bearing support brackets installed on both sides of the outer wall of the loading box and provided with guide grooves in the front and rear directions through which the sprocket shaft passes; A tension adjusting bolt having one end coupled to the bearing block and disposed in the longitudinal direction of the loading box; A tension adjustment spring provided on the outside of the tension adjustment bolt to elastically press the bearing block; A fixing bracket installed on the outer wall of the loading box at a position spaced apart from the bearing support bracket to support the rear end of the tension control bolt and elastically support the tension control spring; It is fastened to the rear end of the tension adjustment bolt and is in contact with the fixing bracket to limit the movement of the tension adjustment bolt nut-shaped stopper member; may include.

In addition, there is further provided a ratchet member that allows the tension adjustment bolt to move only in a direction that strengthens the tension of the transfer chain, and the ratchet member includes a straight ratchet gear having a ratchet groove formed at regular intervals on the upper surface, and the rear of the tension adjustment bolt. It may include a ratchet pole which is rotatably installed at the end and provided with at least one ratchet protrusion coupled to the ratchet groove of the straight ratchet gear at the lower end.

In addition, the ratchet groove of the linear ratchet gear may be formed by an inclined surface that decreases toward the rear side of the loading box and a vertical surface connected thereto.

In addition, a tension adjustment nut may be fastened to the tension adjustment bolt at the rear end of the bearing block so that the elastic force of the tension adjustment spring can be finely adjusted.

In addition, block guides that guide the linear movement of the bearing block and prevent separation of the bearing block may be provided on the upper and lower sides of the bearing support bracket, respectively.

In addition, the length of the guide groove formed in the bearing support bracket may be the same as the length of the chain member constituting the transfer chain.

In addition, when the bearing block is moved to the end of the guide groove of the bearing support bracket, one of the chain members constituting the transfer chain is removed, and the bearing block is moved to the initial position to readjust the tension of the transfer chain.

According to the traction type compost spreader chain tension automatic adjustment device of the present invention, when the tension of the transfer chain constituting the compost transfer device decreases as the number of uses increases, the sprocket axis of the transfer chain is moved forward by the tension control spring. As the tension of the transport chain is increased, the tension of the transport chain is automatically adjusted without any separate operation, so that the problem of separation of the transport chain due to weakening of the tension does not occur, thereby reducing friction noise and mechanical damage.

In addition, according to the present invention, since the stopper member is fastened to the rear end of the tension adjustment bolt to limit the movement of the tension adjustment bolt, the tension of the transfer chain is weakened, and the bearing support bracket that may occur due to excessive advancement of the bearing block Damage is prevented.

In addition, according to the present invention, as the rear end of the tension adjustment bolt is supported by the ratchet member, the tension adjustment bolt can move only in the direction of strengthening the tension of the transport chain, so that the unbalanced loading of the compost causes the unbalanced load on the transport chain. Even if it works, there is an advantage that the tension of the transport chain is not weakened.

In addition, according to the present invention, there is an advantage that it is possible to maintain the left and right balance of the compost transfer device by finely adjusting the elastic force of the tension control spring using a tension control nut fastened to the tension control bolt between the bearing block and the tension control spring. .

In addition, according to the present invention, when the bearing block moves to the end of the guide hole of the bearing support bracket, the tension of the transfer chain is readjusted by removing the chain member of the transfer chain, so that the tension can be automatically adjusted regardless of the change in the tension of the transfer chain. There will be.

1 is a perspective view showing a conventional traction type compost spreader.
2 is a perspective view showing a traction type compost spreader to which the automatic chain tension control device of the present invention is applied.
Figure 3 is a perspective view showing a traction type manure spreader chain tension automatic adjustment device according to the present invention.
Figure 4 is a perspective view showing a view from a different direction of the automatic tension control device for a traction type manure spreader chain according to the present invention.
Figure 5 is a front view of a traction type manure spreader chain tension automatic adjustment device according to the present invention.
Figure 6 is a reference diagram for explaining the operating mode of the automatic tension control device for a traction type manure spreader chain according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Terms used in the present invention are terms defined in consideration of functions in the present invention, and since these may vary according to the intention or custom of users or operators, the definitions of these terms correspond to the technical matters of the present invention. And should be interpreted as a concept.

In addition, the embodiments of the present invention do not limit the scope of the present invention, but are merely exemplary matters of the elements presented in the claims of the present invention, and are included in the technical idea throughout the specification of the present invention. This is an embodiment including a component that can be substituted as an equivalent in the component.

In addition, optional terms in the following embodiments are used to distinguish one component from other components, and the component is not limited by the terms.

Accordingly, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

2 is a perspective view showing a traction type manure spreader to which the automatic chain tension control device of the present invention is applied, and FIGS. 3 to 6 are views showing a traction type manure spreader chain tension automatic adjustment device and a configuration thereof according to the present invention. .

The traction type manure spreader to which the automatic chain tension control device according to the present invention is applied, as shown in FIG. 2, has a joint part 11 and a wheel 12 for connection to a tractor, and a loading box 10 capable of loading compost. ), and a compost transfer device (30) that includes a plurality of transfer bars (32) connected to the transfer chain (31) at both ends and transfers the compost loaded in the loading bin (10) by a certain amount to the rear side of the loading bin (10) , It includes a beater 40 for crushing and spreading the compost transferred by the compost transfer device 30, and a driving source (not shown) for driving the compost transfer device 30 and the beater 40, , Chain tension automatic adjustment device 50 for automatically adjusting the tension of the transfer chain 31 constituting the compost transfer device 10 is provided on both front sides of the loading bin 10.

On the other hand, the chain tension automatic adjustment device 50 of the present invention, as shown in Figs. 2 to 5, the bearing block 51 and the bearing support bracket 53, the tension adjustment bolt 55, the tension adjustment spring 56 ), a fixing bracket 57, a stopper member 58 and a ratchet member 60.

The bearing block 51 is provided with a take-up bearing 52 rotatably supporting the sprocket shaft 36 of the sprocket 35 to which the transfer chain 31 is coupled, and is provided in the longitudinal direction of the loading box 10 It is configured to move back and forth along the line. In addition, a tension adjusting bolt 55 is integrally coupled to the rear end of the bearing block 51.

And bearing support brackets 53 are installed on both sides of the outer wall of the loading box 10, respectively, to support the take-up bearing 52 while guiding the movement of the bearing block 51, in the front and rear directions through which the sprocket shaft 36 passes. The guide groove 54 is formed.

At this time, it is preferable that a block guide 53' for preventing the bearing block 51 from being separated while guiding the linear movement of the bearing block 51 is provided on the upper side and the lower side of the bearing support bracket 53, respectively.

The tension adjustment bolt 55 has one end coupled to the bearing block 51 and disposed in the longitudinal direction of the loading box 10, and serves to support the tension adjustment spring 56 so as not to deviate.

In addition, a nut-shaped stopper member 58 is fastened to the rear end of the tension adjustment bolt 55 by contacting the fixing bracket 57 to limit the movement of the tension adjustment bolt 55.

At this time, the tension adjustment nut 59 may be fastened to the front end of the tension adjustment bolt 55 so as to finely adjust the elastic force of the tension adjustment spring 56.

Accordingly, it is possible to adjust the elastic force of the tension control spring 56 in a manner that changes the distance between the rear end of the bearing block 51 and the tension control spring 56 using the tension control nut 59.

The tension adjusting spring 56 is provided on the outside of the tension adjusting bolt 55 to maintain the proper tension of the conveying chain 31 by elastically pressing the bearing block 51. Specifically, the tension control spring 56 is located between the bearing block 51 and the fixing bracket 57, and by using the elastic force to push the bearing block 51 to the front side of the loading box 10, the transfer chain 31 is Try to maintain the proper tension.

The fixing bracket 57 is installed on the outer wall of the loading box 10 at a certain distance from the bearing support bracket 53 to support the rear end of the tension adjustment bolt 55 and to elastically support the tension adjustment spring 56. do.

Here, the fixing bracket 57 is a cylindrical penetrating member 57a disposed in a horizontal direction so that the tension adjusting bolt 55 penetrates, and fixedly installed on the outer wall of the loading box 10 to support one side of the penetrating member 57a. In addition, the spring sheet (57b) supporting one end of the tension adjusting spring (56) and fixedly installed on the outside of the loading box (10) to support the other side of the penetrating member (57a) and limit the movement of the stopper member (58) It includes a blocking plate (57c).

The ratchet member 60 supports the rear end of the tension adjustment bolt 55 so that the tension adjustment bolt 55 can move only in a direction that strengthens the tension of the transfer chain 31, and the ratchet member 60 is loaded. A straight ratchet gear 61 that is fixed to the outer wall of (10) and has a ratchet groove 62 formed at regular intervals on the upper surface, and is rotatably installed at the rear end of the tension adjusting bolt 55, and a straight ratchet gear at the lower end ( It includes a ratchet pole 63 provided with one or more ratchet protrusions 64 coupled to the ratchet groove 62 of 61).

In this case, the ratchet groove 62 of the linear ratchet gear 61 is formed by an inclined surface that decreases toward the rear side of the loading box 10 and a vertical surface connected thereto, so that the ratchet protrusion 64 formed in a direction corresponding thereto is inserted Make it possible.

Accordingly, the ratchet pole 63 can move to the front side of the loading box 10, but cannot move to the rear side of the loading box 10, so that the tension of the transfer chain 31 is not weakened.

On the other hand, the length L of the guide groove 54 formed in the bearing support bracket 53 is preferably the same as the length of the chain member 31 ′ constituting the transfer chain.

Accordingly, as shown in (b) of Figure 6, when the bearing block 51 is moved to the end of the guide groove 54 of the bearing support bracket 53, the chain member 31 ′ constituting the transfer chain 31 One of them is removed, and the tension of the transport chain 31 can be readjusted by moving the bearing block 51 to the initial position, as shown in FIG. 6A.

On the other hand, the traction type compost spreader chain tension automatic adjustment device of the present invention configured as described above moves the sprocket to which the transfer chain is coupled to the front so that the tension of the transfer chain, which weakens as the number of uses, is kept constant.

The sprocket shaft 36 on which the sprocket 36 to which the transfer chain 31 is coupled is installed protrudes to both sides of the loading box 10 and penetrates the guide groove 54 of the bearing support bracket 53 installed in the loading box 10 Do it.

Then, the sprocket shaft 36 is coupled to the take-up bearing 32 provided in the bearing block 31 to rotatably support the sprocket shaft 36 passing through the guide groove 54, and the bearing block 51 It is installed on the bearing support bracket 53 so that the bearing block 51 can move back and forth along the guide groove 54 of the bearing support bracket 53.

At this time, the bearing block 51 is coupled between the block guides 53' of the bearing support bracket 53, so that the bearing block 51 is not separated from the bearing support bracket 53 while moving only in the front and rear direction.

In addition, the tension adjustment nut 59 is coupled to the tension adjustment bolt 55 coupled to the bearing block 51 and the tension adjustment nut 59 is coupled to the tension adjustment bolt 55.

At this time, the tension adjustment bolt 55 is coupled to the bearing block 51 while passing through the fixing bracket 57, but the tension adjustment spring 56 coupled to the tension adjustment bolt 55 is a tension adjustment nut 59 ) And the fixing bracket 57 so that the elastic force of the tension adjusting spring 56 acts on the bearing block 51.

Therefore, the elastic force of the tension control spring 56 always acts on the bearing block 51 so that the bearing block 51 moves only in the front direction of the loading box 10.

In this way, when the bearing block 51 moves forward, the tension adjusting bolt 55 coupled to the bearing block 51 also moves forward together with the bearing block 51, and as the bearing block 51 moves forward Tension is applied to the transfer chain 31 so that the transfer chain 31 can move while maintaining a taut state.

On the other hand, when the bearing block 51 is as advanced as possible, more specifically, when the bearing block 51 advances to a position where the sprocket shaft 36 contacts the end of the guide groove 54, the tension adjusting bolt ( The stopper member 58 fastened to the rear end of 55) contacts the fixing bracket 57 so that it cannot advance any more. In this case, as shown in (b) of FIG. 6, by removing one of the plurality of chain members 31' constituting the transfer chain 31, the sprocket shaft 36 can be moved to the initial position. Accordingly, it is possible to readjust the tension of the transport chain 31 by retreating the bearing block 51.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, and the present invention is not limited thereto, and those of ordinary skill in the art within the spirit of the present invention It is clear that modifications or improvements are possible.

All simple modifications to changes of the present invention belong to the scope of the present invention, and the specific scope of protection of the present invention will become apparent by the appended claims.

10: loading box 11: joint part
12: wheel 30: compost transfer device
31: transfer chain 31': chain member
32: transfer bar 35: sprocket
36: sprocket shaft 40: beater
50: chain tension automatic adjustment device 51: bearing block
52: take-up bearing 53: bearing support bracket
53': block guide 54: guide groove
55: tension adjustment bolt 56: tension adjustment spring
57: fixing bracket 57a: through member
57b: spring seat 57c: blocking plate
58: stopper member 59: tension adjustment nut
60: ratchet member 61: straight ratchet gear
62: ratchet groove 63: ratchet pole
64: ratchet protrusion

Claims (7)

It is a traction type manure spreader chain tension automatic adjustment device that is installed on the traction type manure spreader and controls the tension of the transportation chain of the manure transfer device that transfers the manure from the loading bin to the rear.
A bearing block having a take-up bearing rotatably supporting the sprocket shaft of the sprocket to which the transfer chain is coupled;
Bearing support brackets installed on both sides of the outer wall of the loading box and provided with guide grooves in the front and rear directions through which the sprocket shaft passes;
A tension adjusting bolt having one end coupled to the bearing block and disposed in the longitudinal direction of the loading box;
A tension adjustment spring provided on the outside of the tension adjustment bolt to elastically press the bearing block;
A fixing bracket installed on an outer wall of the loading box at a position spaced apart from the bearing support bracket to support the rear end of the tension control bolt and elastically support the tension control spring;
Includes; a nut-shaped stopper member fastened to the rear end of the tension adjustment bolt and contacting the fixing bracket to limit the movement of the tension adjustment bolt,
A ratchet member is further provided to allow the tension control bolt to move only in a direction that enhances the tension of the transfer chain,
The ratchet member,
A straight ratchet gear in which ratchet grooves are formed at regular intervals on the upper surface,
On the other hand, it includes a ratchet pole rotatably installed at the rear end of the tension adjustment bolt and provided with at least one ratchet protrusion coupled to the ratchet groove of the straight ratchet gear at the lower end,
The length of the guide groove formed in the bearing support bracket is the same as the length of the chain member constituting the transfer chain.
delete The method according to claim 1,
The ratchet groove of the straight ratchet gear is formed by an inclined surface that decreases toward a rear side of the loading box and a vertical surface connected thereto.
The method according to claim 1,
Traction type compost spreader chain tension automatic adjustment device in which a tension adjustment nut is fastened to the tension adjustment bolt at the rear end of the bearing block so that the elasticity of the tension adjustment spring can be finely adjusted.
The method according to claim 1,
A traction type manure spreader chain tension automatic adjustment device, wherein a block guide for preventing separation of the bearing block while guiding the linear movement of the bearing block is provided on the upper and lower sides of the bearing support bracket, respectively.
delete The method according to claim 1,
When the bearing block is moved to the end of the guide groove of the bearing support bracket, one of the chain members constituting the transfer chain is removed, and then the bearing block is moved to the initial position to readjust the tension of the transfer chain. Automatic regulation device.

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