CN211496815U - Chain drive device and walking dolly - Google Patents
Chain drive device and walking dolly Download PDFInfo
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- CN211496815U CN211496815U CN201921740492.2U CN201921740492U CN211496815U CN 211496815 U CN211496815 U CN 211496815U CN 201921740492 U CN201921740492 U CN 201921740492U CN 211496815 U CN211496815 U CN 211496815U
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Abstract
The utility model discloses a chain drive device, wherein the transmission direction of the first section chain that extends from the main shaft and second section chain is reverse behind the driven shaft, so can make the rotation direction of driven shaft and the rotation opposite direction of driving shaft through first section chain and second section chain. Therefore, simultaneous reverse motion of the two shafts can be realized only by connecting the driving shaft with the chain in front of the driven shaft, and the whole structure can be simplified. The utility model discloses simultaneously disclose the walking dolly that has this chain drive, through the rising and the decline of the lifting frame body in this chain drive walking dolly.
Description
Technical Field
The utility model discloses a chain drive belongs to chain drive technical field.
The utility model discloses a walking dolly belongs to storage system technical field, especially the walking dolly of walking on the storage track.
Background
In the existing chain transmission structure, gears are mostly matched with chains, the chains are driven to rotate through the rotation of a driving shaft, and the chains simultaneously drive a driven shaft to rotate in a manner of providing power for the driven shaft. The existing chain transmission structure can only drive the driving shaft and the driven shaft in the same direction, namely the driving shaft rotates in the same direction to drive the driven shaft to rotate. In some application structures, if the driving shaft and the driven shaft need to rotate oppositely, the chain transmission cannot be adopted, only one reversing structure is extended out through the motor, the driven shaft is driven to rotate through the other chain, or the two shafts are independently arranged, and the two shafts can rotate simultaneously and rotate in opposite directions by controlling the rotation of the two shafts through the two motors respectively. This complicates the structure, not only occupies the internal space of the mechanical product, but also increases the production cost.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: the utility model provides a chain drive device can be through the chain between driving shaft and the driven shaft with driving shaft and driven shaft while antiport.
The utility model discloses provide a walking dolly simultaneously, be applied to the lifting frame body with chain drive device on.
The technical scheme is as follows: in order to achieve the above purpose, the utility model can adopt the following technical proposal:
a chain driving device comprises a driving shaft and a driven shaft arranged in parallel with the driving shaft; the driving shaft is provided with a first driving gear and a second driving gear which are coaxial, and the driven shaft is provided with a first driven gear and a second driven gear which are coaxial; a first section of chain is wound on the first driving gear and the first driven gear, a second section of chain is wound on the second driving gear and the second driven gear, and one end of the first section of chain extends out of the upper part of the first driving gear, extends into the lower part of the first driven gear and is wound on the first driven gear; one end of the second section of chain extends out of the lower part of the second driving gear, extends into the second driven gear from the upper part of the second driven gear and is wound on the second driven gear.
Has the advantages that: compared with the prior art, when the driving shaft in the technical scheme rotates, the transmission directions of the first section of chain and the second section of chain extending from the driving shaft are opposite to the direction of the driven shaft, so that the rotation direction of the driven shaft is opposite to the rotation direction of the driving shaft through the first section of chain and the second section of chain. Therefore, simultaneous reverse motion of the two shafts can be realized only by connecting the chain in front of the driving shaft and the driven shaft, and other redundant reversing structures are not required to be arranged outside the space between the driving shaft and the driven shaft or more than two motors are used as driving devices. Thereby enabling to simplify the entire structure.
Furthermore, a first tensioning gear, a first support for bearing the first tensioning gear, a second tensioning gear and a second support for bearing the second tensioning gear are arranged between the driving shaft and the driven shaft, and the first tensioning gear is positioned above the first section of chain and is pressed downwards to be meshed with the first section of chain; the second tensioning gear is positioned above the second section of chain and is lifted to be meshed with the second section of chain.
And furthermore, an output gear is arranged on the power output shaft, an input gear matched with the output gear is arranged on the driving shaft, and the output gear and the input gear are in transmission through a chain.
Furthermore, the power output shaft is connected with a motor system, the motor system comprises a driving motor and a speed reducer, and the power output shaft is an output shaft of the speed reducer.
The chain driving device can also adopt the following technical scheme:
a chain driving device comprises a driving shaft and a driven shaft arranged in parallel with the driving shaft; the driving shaft is provided with a coaxial first driving gear, and the driven shaft is provided with a coaxial first driven gear; the first driving gear and the first driven gear are wound with a first section of chain, and one end of the first section of chain extends out of the upper portion of the first driving gear, extends into the lower portion of the first driven gear and is wound on the first driven gear.
Has the advantages that: compared with the prior art, when the driving shaft in the technical scheme rotates, the transmission direction of the first section of chain extending out of the driving shaft is reverse to the driven shaft, so that the rotation direction of the driven shaft is opposite to the rotation direction of the driving shaft through the first section of chain. Therefore, simultaneous reverse motion of the two shafts can be realized only by connecting the chain in front of the driving shaft and the driven shaft, and other redundant reversing structures are not required to be arranged outside the space between the driving shaft and the driven shaft or more than two motors are used as driving devices. Thereby enabling to simplify the entire structure.
The utility model provides a walking dolly adopts following technical scheme:
a walking trolley with the chain driving device comprises a trolley body, a lifting frame body and wheels positioned on the outer side of the trolley body; vertical guide upright posts are arranged on two sides above the vehicle body, a guide sliding block matched with the guide upright posts is arranged on the side face of the lifting frame body, and the lifting frame body moves up and down along the guide upright posts along with the guide sliding block; a hollow accommodating cavity is arranged below the lifting frame body, two side walls of the lifting frame body are arranged on two sides of the accommodating cavity, and the chain driving device is arranged on the upper surface of the vehicle body and is positioned in the accommodating cavity; the two ends of the driving shaft are respectively provided with a first connecting rod device, one end of each first connecting rod device is fixedly connected with the driving shaft, and the outer side of the other end of each first connecting rod device is provided with a first guide block; the two ends of the driven shaft are respectively provided with a second connecting rod device, one end of each second connecting rod device is fixedly connected with the driven shaft, and the outer side of the other end of each second connecting rod device is provided with a second guide block; two side walls of the lifting frame body are provided with a first guide groove matched with the first guide block and a second guide groove matched with the second guide block; the lifting frame comprises a driving shaft, a driven shaft, a lifting frame body, a first guide block, a second guide block, a lifting frame body and a lifting frame body, wherein the first guide block and the second guide block are driven by the driving shaft and the driven shaft to move together, the rotating directions of the first guide block and the second guide block are opposite when the first guide block and the second guide block move together, when the first guide block and the second guide block rotate together to a first position, the lifting frame body moves downwards to a position close to a vehicle body, and when the first guide block and the second guide block rotate together to a second position higher than the first position, the lifting frame body moves upwards to.
Has the advantages that: the walking trolley of the technical scheme can realize that the two shafts can simultaneously rotate in opposite directions, and the chain driving device is applied to lifting of the lifting frame body, the driving shaft and the driven shaft can respectively drive the lifting frame body to ascend or descend through the connecting rod devices, and the driving shaft and the driven shaft can simultaneously move in opposite directions, namely, the first guide block driven by the driving shaft and the second guide block driven by the driven shaft give opposite component forces in the transverse direction of the lifting frame body and can be mutually offset, so that the whole component forces of the first guide block and the second guide block in the transverse direction of the lifting frame body can not be transmitted to the guide upright post of the trolley body, the lifting frame body can smoothly ascend or descend relative to the guide upright post without being influenced by mutual friction of transverse extrusion, the lifting frame body can stably and smoothly move, and meanwhile, the potential deformation of the guide upright post in the transverse.
Furthermore, the first guide groove extends transversely, and when the first guide block rotates along with the driving shaft, the first guide block transversely reciprocates in the first guide groove; the second guide groove and the first guide groove extend transversely relatively, and when the second guide block rotates along with the driven shaft, the second guide block transversely reciprocates in the second guide groove.
Furthermore, the first guide block comprises a first cylindrical shaft body fixed on the first connecting rod and a first block body surrounding the first cylindrical shaft body, the first cylindrical shaft body is connected with the first block body through a bearing, and the first block body is arranged in the first guide groove; the second guide block comprises a second cylindrical shaft body fixed on the second connecting rod and a second block body surrounding the second cylindrical shaft body, the second cylindrical shaft body is connected with the second block body through a bearing, and the second block body is arranged in the second guide groove.
Furthermore, the outer edge profiles of the first block body and the second block body are both square, the height of the first block body is consistent with that of the first guide groove, and the height of the second block body is consistent with that of the second guide groove.
Furthermore, the guide upright post and the guide slide block are guided by matching a slide rail and a slide groove for accommodating the slide rail, and the slide rail and the slide groove are respectively arranged on the guide upright post and the guide slide block.
Drawings
Fig. 1 is a perspective view of the chain drive device of the present invention.
Fig. 2 is a plan view of the middle chain driving device of the present invention after being mounted on the traveling carriage body, and shows a schematic structure of the chain driving device inside the lifting frame body.
Fig. 3 is a side view of the traveling carriage after the lifting frame is engaged with the carriage body, and shows a state where the lifting frame is lowered to a lower position.
Fig. 4 is a side view of the traveling carriage after the lifting frame is engaged with the carriage body, and shows a state where the lifting frame is lifted up to a higher position.
Detailed Description
Example one
Referring to fig. 1, the present embodiment discloses a chain driving device, which enables two shafts in the chain driving device to rotate in opposite directions simultaneously. In the present embodiment, the two shafts are a driving shaft 100 and a driven shaft 200 provided in parallel with the driving shaft 100. The power of the driving shaft 100 is transmitted through a power output shaft 400 of the motor system. The power output shaft 400 is provided with an output gear 410, and the driving shaft 100 is provided with an input gear 110 engaged with the output gear 410. The output gear 410 and the input gear 110 are driven by a chain 420. The power output shaft 400 is connected with a motor system, the motor system comprises a driving motor 430 and a speed reducer 440, and the power output shaft 400 is an output shaft of the speed reducer 440.
The driving shaft 100 is provided with a first driving gear 101 and a second driving gear 102. The driven shaft 200 is provided with a first driven gear 201 and a second driven gear 202. A first chain 310 is wound around the first driving gear 101 and the first driven gear 201. A second section of chain 320 is wound on the second driving gear 102 and the second driven gear 202, and one end of the first section of chain 310 extends from the upper part of the first driving gear 101, extends from the lower part of the first driven gear 210, and is wound on the first driven gear 210; one end of the second chain 320 extends from below the second driving gear 102 and extends into and wraps around the second driven gear 202 from above the second driven gear 202. The first chain 310 and the second chain 320 rotate the driven shaft 200 in the opposite direction to the driving shaft 100. Therefore, the simultaneous reverse motion of the two shafts can be realized only by the chain connection between the driving shaft 100 and the driven shaft 200, and other redundant reversing structures are not required to be arranged outside the space between the driving shaft 100 and the driven shaft 200 or more than two motors are used as driving devices. Thereby enabling to simplify the entire structure.
A first tensioning gear 330, a first bracket 331 carrying the first tensioning gear, a second tensioning gear 340 and a second bracket 341 carrying the second tensioning gear 340 are also arranged between the driving shaft 100 and the driven shaft 200. The first tensioning gear 330 is positioned above the first strand of chain 310 and is pressed down into engagement with the first strand of chain 310. The second tensioning gear 340 is located above the second strand of chain 320 and is lifted into engagement with the second strand of chain 320.
In the present embodiment, since both ends of the first chain 310 need to be fixed to the first driving gear 101 and the first driven gear 201, and both ends of the second chain 320 need to be fixed to the second driving gear 102 and the second driven gear 202, the driving shaft 100 and the driven shaft 200 cannot rotate continuously for one circle, but can only rotate for an angle less than one circle (the specific rotation angle is determined by the length of the chain), and thus the chain driving apparatus is suitable for an application environment where the driving shaft 100 and the driven shaft 200 rotate with a small stroke or rotate reciprocally at an angle less than one circle. The chain drive device provided in the present embodiment can rotate the driving shaft 100 and the driven shaft 200 forward or backward by 180 °, and is a small-stroke chain transmission.
Example two
Referring to fig. 2 to 4, a second embodiment provides a traveling trolley with the chain driving device of the first embodiment, which is applied to a rack in a warehouse logistics system and can move on a track of the rack. The chain driving device is used for driving a lifting frame body in the traveling trolley to ascend or descend, and the lifting frame body is used for bearing cargoes. The walking trolley comprises a trolley body 500, a lifting frame 510 and wheels positioned on the outer side of the trolley body. Vertical guide columns 530 are arranged on two sides above the vehicle body 500, and guide sliding blocks 511 matched with the guide columns 530 are arranged on the side surfaces of the lifting frame body 510. The lifting frame 510 moves up and down along the guide post 530 along with the guide blocks 511. The guiding column 530 and the guiding sliding block 511 are guided by a sliding rail (not numbered) and a sliding groove (not numbered) for accommodating the sliding rail, and the sliding rail and the sliding groove are respectively arranged on the guiding column 530 and the guiding sliding block 511. Namely, a slide rail may be provided on the guide pillar 530, and a slide groove may be provided on the guide slider 511, or a slide groove may be provided on the guide pillar 530, and a slide rail may be provided on the guide slider 511. A hollow accommodating chamber (not shown) is provided below the lifting frame 510, and two side walls 512 of the lifting frame are provided on both sides of the accommodating chamber. The chain drive device is mounted on the upper surface of the vehicle body 500 and is located in the receiving cavity. Two ends of the driving shaft 100 are respectively provided with a first connecting rod device 102, one end of the first connecting rod device 102 is fixedly connected with the driving shaft 100, and the outer side of the other end of the first connecting rod device 102 is provided with a first guide block 103. The two ends of the driven shaft 200 are both provided with a second link device 202, one end of the second link device 202 is fixedly connected with the driven shaft 200, and the outer side of the other end of the second link device 202 is provided with a second guide block 203. The first linkage 102 and the second linkage 202 may be rod-shaped, or may be disks attached to the driving shaft or the driven shaft via shaft pins, as long as the "link" effect between the shaft and the guide block is achieved. Two side walls 512 of the lifting frame 510 are provided with a first guide groove 513 matched with the first guide block 103 and a second guide groove 514 matched with the second guide block 203. The first guide block 103 includes a first cylindrical shaft body 105 fixed to the first linkage 102, and a first block 106 surrounding the first cylindrical shaft body 105. The first cylindrical shaft body 105 is connected with the first block 106 through a bearing. The first block 106 is disposed in the first guide groove 513. The second guide block 203 includes a second cylindrical shaft 205 fixed to the second link 202, and a second block 206 surrounding the second cylindrical shaft 205. The second cylindrical shaft 205 is connected with the second block 206 through a bearing. The second block 206 is disposed within the second channel 514. The outer edge profiles of the first block 106 and the second block 206 are square. And the height of the first block 106 is identical to that of the first guide groove 513, and the height of the second block 206 is identical to that of the second guide groove 514. The first guide block 103 and the second guide block 203 are driven by the driving shaft 100 and the driven shaft 200 to move together. And the rotation direction when the first guide block 103 and the second guide block 203 move together is opposite. As shown in fig. 3, when the first guide block 103 and the second guide block 203 rotate together to the first position (i.e., the lower position), the lifting frame 510 moves downward to a position close to the car body 500, that is, the goods on the lifting frame 510 can move downward when being used on the storage rack. As shown in fig. 4, when the first guide block 103 and the second guide block 203 rotate together to the second position higher than the first position, the lifting frame 510 moves upward to a position away from the vehicle body 500, that is, can be used to lift the cargo upward.
Since the movement of the first guide block 103 and the second guide block 203 from top to bottom or from bottom to top is an arc-shaped track, the first guide groove 513 and the second guide groove 514 need to give a space for the movement of the first guide block 103 and the second guide block 203 in the lateral direction. That is, the first guide groove 513 is extended laterally, and when the first guide block 103 rotates with the driving shaft 100, the first guide block 103 is laterally reciprocated in the first guide groove 513; the second guide groove 514 extends laterally opposite to the first guide groove 513, and the second guide block 203 reciprocates laterally within the second guide groove 514 as the second guide block 103 rotates with the driven shaft 200. Since the heights of both ends of the top surface of the lifting frame 510 need to be kept consistent, the heights of the first guide block 103 and the second guide block 203 during movement need to be consistent all the time, and the overall structure can be adjusted in size.
Due to the adoption of the chain driving device in the first embodiment, the traveling trolley can realize that the two shafts rotate in opposite directions simultaneously to drive the lifting frame body 510 to ascend and descend, and the driving shaft 100 and the driven shaft 200 respectively realize the driving of the lifting frame body 510 to ascend or descend. The transverse component force of the lifting frame body 510 is also opposite and can be offset by the first guide block 103 driven by the driving shaft and the second guide block 203 driven by the driven shaft, so that the transverse integral component force of the lifting frame body 510 caused by the first guide block 103 and the second guide block 203 is not transmitted to the guide upright 530 of the vehicle body, and the lifting frame body 510 can smoothly rise or fall relative to the guide upright without being influenced by mutual friction of transverse extrusion.
The utility model discloses the method and the way of realizing this technical scheme are many specifically, above only the preferred embodiment of the utility model. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (10)
1. A chain driving device comprises a driving shaft and a driven shaft arranged in parallel with the driving shaft; the driving shaft is provided with a first driving gear and a second driving gear which are coaxial, and the driven shaft is provided with a first driven gear and a second driven gear which are coaxial; the chain transmission mechanism is characterized in that a first section of chain is wound on the first driving gear and the first driven gear, a second section of chain is wound on the second driving gear and the second driven gear, and one end of the first section of chain extends out of the upper part of the first driving gear, extends into the lower part of the first driven gear and is wound on the first driven gear; one end of the second section of chain extends out of the lower part of the second driving gear, extends into the second driven gear from the upper part of the second driven gear and is wound on the second driven gear.
2. The chain drive as set forth in claim 1, wherein: a first tensioning gear, a first support bearing the first tensioning gear, a second tensioning gear and a second support bearing the second tensioning gear are further arranged between the driving shaft and the driven shaft, and the first tensioning gear is positioned above the first section of chain and is pressed downwards to be meshed with the first section of chain; the second tensioning gear is positioned above the second section of chain and is lifted to be meshed with the second section of chain.
3. The chain drive as recited in claim 1 or 2, wherein: the power output shaft is provided with an output gear, the driving shaft is provided with an input gear matched with the output gear, and the output gear and the input gear are in transmission through a chain.
4. The chain drive as set forth in claim 3, wherein: the power output shaft is connected with a motor system, the motor system comprises a driving motor and a speed reducer, and the power output shaft is an output shaft of the speed reducer.
5. A chain driving device comprises a driving shaft and a driven shaft arranged in parallel with the driving shaft; the driving shaft is provided with a coaxial first driving gear, and the driven shaft is provided with a coaxial first driven gear; the first section of chain is wound on the first driving gear and the first driven gear, and one end of the first section of chain extends out of the upper portion of the first driving gear, extends into the lower portion of the first driven gear and is wound on the first driven gear.
6. A running carriage having the chain drive apparatus according to any one of claims 1 to 5, comprising a carriage body, a lifting frame body, wheels located outside the carriage body; vertical guide upright posts are arranged on two sides above the vehicle body, a guide sliding block matched with the guide upright posts is arranged on the side face of the lifting frame body, and the lifting frame body moves up and down along the guide upright posts along with the guide sliding block; the lifting frame is characterized in that a hollow accommodating cavity is arranged below the lifting frame, two side walls of the lifting frame are arranged on two sides of the accommodating cavity, and the chain driving device is arranged on the upper surface of the vehicle body and is positioned in the accommodating cavity; the two ends of the driving shaft are respectively provided with a first connecting rod device, one end of each first connecting rod device is fixedly connected with the driving shaft, and the outer side of the other end of each first connecting rod device is provided with a first guide block; the two ends of the driven shaft are respectively provided with a second connecting rod device, one end of each second connecting rod device is fixedly connected with the driven shaft, and the outer side of the other end of each second connecting rod device is provided with a second guide block; two side walls of the lifting frame body are provided with a first guide groove matched with the first guide block and a second guide groove matched with the second guide block; the lifting frame comprises a driving shaft, a driven shaft, a lifting frame body, a first guide block, a second guide block, a lifting frame body and a lifting frame body, wherein the first guide block and the second guide block are driven by the driving shaft and the driven shaft to move together, the rotating directions of the first guide block and the second guide block are opposite when the first guide block and the second guide block move together, when the first guide block and the second guide block rotate together to a first position, the lifting frame body moves downwards to a position close to a vehicle body, and when the first guide block and the second guide block rotate together to a second position higher than the first position, the lifting frame body moves upwards to.
7. The walking trolley of claim 6, wherein: the first guide groove extends transversely, and when the first guide block rotates along with the driving shaft, the first guide block transversely reciprocates in the first guide groove; the second guide groove and the first guide groove extend transversely relatively, and when the second guide block rotates along with the driven shaft, the second guide block transversely reciprocates in the second guide groove.
8. The walking trolley according to claim 6 or 7, wherein: the first guide block comprises a first cylindrical shaft body fixed on the first connecting rod device and a first block body surrounding the first cylindrical shaft body, the first cylindrical shaft body is connected with the first block body through a bearing, and the first block body is arranged in the first guide groove; the second guide block comprises a second cylindrical shaft body fixed on the second connecting rod device and a second block body surrounding the second cylindrical shaft body, the second cylindrical shaft body is connected with the second block body through a bearing, and the second block body is arranged in the second guide groove.
9. The walking trolley of claim 8, wherein: the outer edge profiles of the first block body and the second block body are square, the height of the first block body is consistent with that of the first guide groove, and the height of the second block body is consistent with that of the second guide groove.
10. The walking trolley of claim 6, wherein: the guide upright posts and the guide sliding blocks are matched and guided through the sliding rails and the sliding grooves for accommodating the sliding rails, and the sliding rails and the sliding grooves are respectively arranged on the guide upright posts and the guide sliding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740492.2U CN211496815U (en) | 2019-10-17 | 2019-10-17 | Chain drive device and walking dolly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740492.2U CN211496815U (en) | 2019-10-17 | 2019-10-17 | Chain drive device and walking dolly |
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| Publication Number | Publication Date |
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| CN211496815U true CN211496815U (en) | 2020-09-15 |
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| CN201921740492.2U Active CN211496815U (en) | 2019-10-17 | 2019-10-17 | Chain drive device and walking dolly |
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| CN (1) | CN211496815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615382A (en) * | 2019-10-17 | 2019-12-27 | 南京音飞储存设备（集团）股份有限公司 | Chain drive device and walking dolly |
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2019
- 2019-10-17 CN CN201921740492.2U patent/CN211496815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110615382A (en) * | 2019-10-17 | 2019-12-27 | 南京音飞储存设备（集团）股份有限公司 | Chain drive device and walking dolly |
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