CN217519152U

CN217519152U - Tensioning mechanism for four-way shuttle vehicle chain

Info

Publication number: CN217519152U
Application number: CN202221179226.9U
Authority: CN
Inventors: 饶昊; 张现玉
Original assignee: Wap Intelligence Storage Equipment Zhejiang Co Ltd
Current assignee: Wap Intelligence Storage Equipment Zhejiang Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-09-30
Anticipated expiration: 2032-05-17

Abstract

The utility model belongs to the technical field of the quadriversal shuttle, especially, relate to a straining device for quadriversal shuttle chain. The utility model discloses a set up rectangle notch, rotatory ring unit on the automobile body curb plate to and the mode of cylinder unit, make the tensioning operation of chain simpler, high-efficient. The utility model has the advantages of it is following: the tensioning degree of the first and fourth directional shuttle vehicle chains is adjusted by sliding the rotating ring unit, so that the most basic tensioning and adjusting operation is realized; and the two fixing modes after the rotating ring unit slides comprise a fastening nut clamping mode and a rectangular hole clamping mode, wherein the fastening nut clamping mode is stepless adjustment, the rectangular hole clamping mode is stepped adjustment, and the two fixing modes can be optional or both optional, so that the high-strength stability of the rotating ring unit during fixing is ensured.

Description

Tensioning mechanism for four-way shuttle vehicle chain

Technical Field

The utility model belongs to the technical field of the quadriversal shuttle, especially, relate to a straining device for quadriversal shuttle chain.

Background

And a driving chain in the four-way shuttle vehicle is connected with the driving shaft and the output shaft. Typically, there is one drive shaft in the middle and two output shafts on the sides. When the chain becomes loose and long, the harmful problem of inaccurate positioning of the four-way shuttle vehicle occurs, so that a proper tensioning mechanism needs to be equipped for the driving chain in the four-way shuttle vehicle.

The existing chain tensioning mechanism, for example, chinese utility model patent with patent publication No. CN211516448U and publication No. 2020.09.18, discloses a laser cutting machine exchange platform chain tensioning device.

Its structure includes the lathe lateral wall, go up the fixing base, lower fixing base, the sprocket seat, sprocket and bolt seat, it installs on the lathe lateral wall with lower fixing base to go up the fixing base, and set up from top to bottom, go up the fixing base downside and offer the spout, the spout is seted up down to lower fixing base upside, the sprocket seat is located between fixing base and the lower fixing base, and upside and downside and last spout and lower spout match, sprocket seat right end upper surface is equipped with the sprocket mounting hole, the sprocket passes through the sprocket mounting hole and installs on the sprocket seat, the sprocket seat left end is equipped with the bolted connection piece, the bolt seat is installed on bolted connection piece left side lathe lateral wall, the bolted connection piece terminal surface is opened there is the regulation screw hole, establish adjusting bolt on the bolt seat.

However, the chain tensioner of the utility model has at least the following 2 disadvantages in the practical use.

First, only stepless adjustment of the thread adjustment mode is possible, and adjustment functions with faster adjustment speed are lacking.

Secondly, the operation of screw-threaded adjustment of the sprocket position is also relatively cumbersome and not fast enough.

Therefore, in view of the above, there is a need for a new chain tensioning mechanism with faster, more comprehensive and more flexible tensioning operation for use in a drive chain of a four-way shuttle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a straining device for quadriversal shuttle chain, it can be through setting up rectangle notch, rotatory ring unit (2) on the automobile body curb plate to and the mode of cylinder unit, make the tensioning operation of chain simpler, high-efficient.

The utility model provides a technical scheme that above-mentioned problem adopted is: a tensioning mechanism for a four-way shuttle chain comprises a rectangular notch arranged on a side plate of a vehicle body, a rotating ring unit which is inserted into the rectangular notch and used for pressing down the chain, and a cylinder unit which is arranged on the outer side surface of the side plate of the vehicle body and used for performing step adjustment on the position of the rotating ring unit in a mode of clamping the rotating ring unit in sliding.

The further preferred technical scheme is as follows: the rotating ring unit comprises a shaft body and a circular ring, wherein the shaft body is inserted into the rectangular notch, and the circular ring is sleeved on the shaft body and used for pressing the chain downwards.

The further preferred technical scheme is as follows: the rotating ring unit further comprises two fastening nuts which are arranged on the shaft body and are respectively positioned on the inner side and the outer side of the vehicle body side plate, and an elastic ring which is arranged on the side surface of each fastening nut and is used for clamping the vehicle body side plate.

The further preferred technical scheme is as follows: the rotating ring unit further comprises a thread groove formed in the inner side end face of the shaft body, a limiting bolt arranged on the thread groove, and a protruding block arranged on the shaft body and used for blocking the circular ring on the outer side.

The further preferred technical scheme is as follows: the rotating ring unit further comprises a rectangular hole which is arranged on the outer side section of the shaft body and used for being inserted into the cylinder unit.

The further preferred technical scheme is as follows: the column unit comprises a fixed plate, a movable plate and a vertical column, wherein the fixed plate is arranged on the outer side surface of the side plate of the vehicle body and is positioned below the rectangular notch, the movable plate is arranged on the fixed plate, and the vertical column is arranged on the upper surface of the movable plate and is used for being inserted into the rectangular hole.

The further preferred technical scheme is as follows: the column unit further comprises an insertion groove formed in the side surface of the fixed plate, and a protruding plate which is arranged on the side surface of the movable plate and inserted into the insertion groove.

The further preferred technical scheme is as follows: the column unit further comprises a screw hole arranged on the inserting groove and a fastening bolt arranged on the screw hole and used for clamping the protruding plate.

The further preferred technical scheme is as follows: the number of the vertical columns is 3-8.

The further preferred technical scheme is as follows: the outer ring surface of the circular ring is also provided with teeth.

The utility model has the advantages of the following.

The tensioning degree of the first and fourth directional shuttle chains is adjusted by sliding the rotating ring unit, so that the most basic tensioning adjustable operation is realized.

And secondly, the fixing mode after the rotating ring unit slides is two, namely, the fastening nut clamps, and the rectangular hole clamps, wherein the fastening nut is in stepless regulation, the rectangular hole clamps, and the rectangular hole clamps, the rectangular hole clamps and the rectangular hole clamps, and the rectangular hole clamps can be selected optionally or used in both modes, so that the high-strength stability of the rotating ring unit in the fixing process is ensured.

Thirdly, the position adjustment of the rotating ring unit is faster, without requiring little and long time to unscrew the adjusting nut, and is also stepless.

Fourthly, most structures of the tensioning mechanism are arranged on the outer side of the four-way shuttle vehicle, and influence on the structure in the vehicle is small.

Fifthly, when the column unit is not used, the structure of the column unit is not easy to fall off.

Drawings

Fig. 1 is a schematic view of the installation and use mode of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic diagram of the position structure of the middle column unit of the present invention.

Fig. 4 is a schematic view of the position structure of the middle movable plate of the present invention.

Fig. 5 is a schematic structural diagram of the swivel unit of the present invention.

Fig. 6 is a schematic view of the position structure of the middle limit bolt of the present invention.

Fig. 7 is a schematic view of the position structure of the middle tooth of the present invention.

In the drawings, the reference numerals denote the following components: the vehicle body side plate comprises a vehicle body side plate a, a chain b, a rectangular notch 1, a rotating ring unit 2, a cylinder unit 3, a shaft body 201, a circular ring 202, a fastening nut 203, an elastic ring 204, a threaded groove 205, a limiting bolt 206, a protruding block 207, a rectangular hole 208, a fixing plate 301, a movable plate 302, a vertical cylinder 303, an inserting groove 304, a protruding plate 305, a screw hole 306 and a fastening bolt 307.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

As shown in fig. 1 to 7, a tensioner for a four-way shuttle chain comprises a rectangular notch 1 provided on a vehicle body side plate a, a rotating ring unit 2 inserted into the rectangular notch 1 and used for pressing down a chain b, and a cylinder unit 3 provided on an outer side surface of the vehicle body side plate a and used for stepwise adjusting the position of the rotating ring unit 2 by engaging the rotating ring unit 2 in sliding.

In this embodiment, the rotating ring unit 2 is fixed after sliding on the rectangular slot 1, so that different degrees of tension can be stably provided to the chain b. For example, in fig. 1, when the chain b becomes loose slightly, the rotating ring unit 2 can move 1-2cm to the left, and the chain b can be tightened again, and when the chain b becomes loose and long greatly, the rotating ring unit 2 can move 3-5cm to the left, and can be tightened again. Of course, if the loosening of the chain b is too great, the chain should be considered for replacement.

In addition, the sliding adjustment operation of the rotating ring unit 2 on the rectangular notch 1 is stepless adjustment, which is fast and does not need to be screwed a little bit, and the clamping selection of the rotating ring unit 2 on the cylinder unit 3 is step adjustment, which is convenient to fix after adjustment and does not need any fastening structure.

The two modes can be optional and can be combined, so that the flexibility, stability and high efficiency of chain tensioning operation are further ensured.

The rotating ring unit 2 comprises a shaft body 201 inserted and arranged on the rectangular notch 1, and a ring 202 sleeved on the shaft body 201 and used for pressing down the chain b.

In the present embodiment, the vertical width of the rectangular notch 1 is equal to the diameter of the cylindrical shaft body 201, and the circular ring 202 must be rotatable on the shaft body 201, but can be engaged with the chain b, or simply pressed down.

The rotating ring unit 2 further includes two fastening nuts 203 provided on the shaft body 201 and located on the inner and outer sides of the vehicle body side plate a, respectively, and an elastic ring 204 provided on the side surface of the fastening nut 203 and configured to clamp the vehicle body side plate a.

In this embodiment, the shaft body 201 is provided with a threaded section, and the two fastening nuts 203 clamp the vehicle body side plate a, so that sufficient stability of the ring 202 without sliding adjustment can be ensured, and the elastic ring 204 made of a common rubber material is used to increase the frictional force of the clamping operation and prevent the fastening nuts 203 from being accidentally loosened as much as possible.

The rotating ring unit 2 further includes a screw groove 205 provided on an inner end surface of the shaft body 201, a stopper bolt 206 provided on the screw groove 205, and a protrusion block 207 provided on the shaft body 201 and blocking the ring 202 at an outer side.

In this embodiment, an axial limiting bearing with a relatively complex structure may be disposed between the ring 202 and the shaft body 201, or both ends of the axial limiting bearing are limited, so that it is finally ensured that the ring 202 can only rotate and cannot rock left and right.

The protruding block 207 is fixedly connected to the shaft body 201, and a circle of balls may be further disposed on the side surface of the limit bolt 206 facing the circular ring 202, so as to reduce the friction force of the circular ring 202 during rotation as much as possible.

Finally, the rotation direction of the ring 202 is set to the tightening direction of the stopper bolt 206, so that the stopper bolt 206 is not easily dropped, but "tightened with use".

The rotating ring unit 2 further includes a rectangular hole 208 provided on an outer side section of the shaft body 201 and into which the cylinder unit 3 is inserted.

In this embodiment, the cylinder unit 3 is inserted into the rectangular hole 208, so that the rotating ring unit 2 can be used for a further period of time even if both of the fastening nuts 203 fail.

It will of course be recognized that the rotary ring unit 2 is held in place by the snap-fit action at the rectangular aperture 208, and that both loose fastening nuts 203 will still need to be tightened as quickly as possible, in the long run.

The cylinder unit 3 includes a fixed plate 301 disposed on an outer side surface of the body side plate a below the rectangular notch 1, a movable plate 302 disposed on the fixed plate 301, and a vertical cylinder 303 disposed on an upper surface of the movable plate 302 and inserted into the rectangular hole 208.

In this embodiment, the rectangular slot 1 restricts the up-and-down movement of the rotating ring unit 2, so that the vertical column 303 is inserted into the rectangular hole 208 again, and the rotating ring unit 2 cannot move up and down, left and right, and back and forth, thereby finally ensuring that the ring 202 is stably pressed on the chain b to achieve continuous tensioning.

The cylinder unit 3 further includes an insertion groove 304 provided on a side of the fixed plate 301, and a protruding plate 305 provided on a side of the movable plate 302 and inserted into the insertion groove 304.

In this embodiment, the column unit 3 may be idle, so the vertical column 303 needs to be withdrawn from the rectangular hole 208, and the insertion between the protruding plate 305 and the insertion groove 304 is needed for adjustment.

That is, the shaft body 201 is withdrawn outward by a large distance to allow the vertical column 303 to be inserted into the rectangular hole 208, and then the whole body is retracted inward until the protruding plate 305 is inserted into the insertion groove 304, at which time the column unit 3 is effective.

Otherwise, the whole body is withdrawn outward, the vertical column 303 is separated from the rectangular hole 208, the rotating ring unit 2 is retracted inward alone, and finally the protruding plate 305 is inserted into the insertion groove 304, so that the column unit 3 is restrained and is not easy to fall off, and after all, the protruding plate 305 is always caught. Or even more, it is also possible to take down the whole of the protruding plate 305, the movable plate 302, and the vertical column 303.

The cylinder unit 3 further includes a screw hole 306 provided on the insertion groove 304, and a fastening bolt 307 provided on the screw hole 306 and clamping the projecting plate 305.

In this embodiment, the fastening bolt 307 is used to strengthen the frictional engagement of the protruding plate 305, so as to ensure that the cylinder unit 3 is not easily separated and dropped off, whether it is effective or invalid.

The number of the vertical columns 303 is 3-8.

The outer ring surface of the ring 202 is also provided with teeth.

In this embodiment, the ring 202 may be a ring only or a sprocket, which includes the teeth for engaging the chain b at all times.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art. These are non-inventive modifications and are intended to be protected by the following claims.

Claims

1. The utility model provides a straining device for four-way shuttle chain which characterized in that: the chain pushing device comprises a rectangular notch (1) arranged on a vehicle body side plate (a), a rotating ring unit (2) which is inserted into the rectangular notch (1) and used for pressing down a chain (b), and a cylinder unit (3) which is arranged on the outer side surface of the vehicle body side plate (a) and used for performing step adjustment on the position of the rotating ring unit (2) in a clamping and sliding mode through the rotating ring unit (2).

2. The tensioning mechanism for a four-way shuttle chain according to claim 1, wherein: the rotating ring unit (2) comprises a shaft body (201) which is inserted and arranged on the rectangular notch (1), and a circular ring (202) which is sleeved on the shaft body (201) and used for pressing down the chain (b).

3. The tensioning mechanism for a four-way shuttle chain as claimed in claim 2, wherein: the rotating ring unit (2) further comprises two fastening nuts (203) which are arranged on the shaft body (201) and are respectively positioned on the inner side and the outer side of the vehicle body side plate (a), and an elastic ring (204) which is arranged on the side surface of each fastening nut (203) and is used for clamping the vehicle body side plate (a).

4. The tensioning mechanism for a four-way shuttle chain according to claim 2, wherein: the rotating ring unit (2) further comprises a threaded groove (205) arranged on the inner side end surface of the shaft body (201), a limit bolt (206) arranged on the threaded groove (205), and a protruding block (207) arranged on the shaft body (201) and used for blocking the circular ring (202) on the outer side.

5. The tensioning mechanism for a four-way shuttle chain according to claim 2, wherein: the rotating ring unit (2) further comprises a rectangular hole (208) which is arranged on the outer side section of the shaft body (201) and is used for being inserted into the cylinder body unit (3).

6. The tensioning mechanism for a four-way shuttle chain according to claim 5, wherein: the column unit (3) comprises a fixed plate (301) which is arranged on the outer side surface of a vehicle body side plate (a) and is positioned below the rectangular notch (1), a movable plate (302) which is arranged on the fixed plate (301), and a vertical column (303) which is arranged on the upper surface of the movable plate (302) and is used for being inserted into the rectangular hole (208).

7. The tensioning mechanism for a four-way shuttle chain according to claim 6, wherein: the cylinder unit (3) further includes an insertion groove (304) provided on a side of the fixed plate (301), and a projection plate (305) provided on a side of the movable plate (302) and inserted into the insertion groove (304).

8. The tensioning mechanism for a four-way shuttle chain according to claim 7, wherein: the cylinder unit (3) further comprises a screw hole (306) provided on the insertion groove (304), and a fastening bolt (307) provided on the screw hole (306) and clamping the projecting plate (305).

9. The tensioning mechanism for a four-way shuttle chain according to claim 6, wherein: the number of the vertical columns (303) is 3-8.

10. The tensioning mechanism for a four-way shuttle chain according to claim 2, wherein: the outer ring surface of the circular ring (202) is also provided with teeth.