Driving mechanism of wheel fixer

Abstract

The utility model provides a driving mechanism of a wheel fixator, and belongs to the technical field of logistics binding tools. The problem of how to improve the transmission reliability is solved. In the driving mechanism of the wheel fixator, the wheel fixator comprises a carrying table, a first rotating shaft is rotationally connected to the carrying table, an output gear is fixedly connected to the first rotating shaft, the driving mechanism comprises a guide arm, a driving swing arm and a hydraulic motor which are arranged on the carrying table, the fixed end of the driving swing arm is fixedly connected with the first rotating shaft, and the fixed end of the driving swing arm is fixedly connected with the second rotating shaft. The movable end of the hydraulic motor is fixedly connected with the guide arm, a worm and gear assembly and at least one reduction gear set are rotationally connected to the carrying table, the hydraulic motor is connected with the worm and gear assembly through a coupler, and the worm and gear assembly is connected with the output gear through the reduction gear set. The driving mechanism of the wheel fixer can improve the transmission reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of logistics binding tools, and relates to a drive mechanism for a wheel fastener. Background Technology

[0002] Wheel clamps are devices used to secure car tires during vehicle transportation.

[0003] For example, a car tire binding device disclosed in Chinese Patent (Authorization Announcement No.: CN222522924U) includes a platform, a winding shaft, a binding strap, and a winding drive. The winding drive can drive the winding shaft to rotate so that the binding strap is wound up. A swing arm that can swing in the front-back direction of the platform is rotatably connected above the platform. The swing arm is driven by a swing arm drive. A guide arm that extends in the left-right direction of the platform is fixed to the movable end of the swing arm. The guide arm is connected to the movable end of the binding strap. A clearance opening is provided on the upper surface of the platform. The guide arm can swing with the swing arm and enter the clearance opening. A clamping block is provided at the clearance opening. A locking drive can drive the clamping block to move and lock the guide arm in the clearance opening.

[0004] Combined with appendix Figure 1 , 2 As can be seen from 5 and 6, the device uses the swing arm drive 6 as the drive source, which drives the active sprocket 19 to rotate and transmits the power through the chain to the driven sprocket 20. In this state, the rotating shaft drives the drive swing arm 5, so that the guide arm 7 moves along the outer periphery of the tire and simultaneously pulls the binding strap 3 from above the tire until it enters the clearance opening 1a, thereby completing the automatic pulling and binding action.

[0005] However, this drive method is highly dependent on the condition of the chain. As the usage time increases, the wear of the chain increases, and the transmission often fails due to slippage between the chain and the drive sprocket and the driven sprocket. In addition, the chain transmission process is very easy to cause the drive swing arm to wobble, resulting in poor transmission reliability. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a drive mechanism for a wheel retainer. The technical problem this invention aims to solve is: how to improve the reliability of transmission.

[0007] The objective of this utility model can be achieved through the following technical solution: a drive mechanism for a wheel retainer, the wheel retainer including a platform, a rotating shaft rotatably connected to the platform, an output gear fixedly connected to the rotating shaft, the drive mechanism including a guide arm, a drive swing arm and a hydraulic motor disposed on the platform, the fixed end of the drive swing arm being fixedly connected to the rotating shaft, and the movable end being fixedly connected to the guide arm, characterized in that a worm gear assembly and at least one set of reduction gears are rotatably connected to the platform, the hydraulic motor and the worm gear assembly are connected by a coupling, and the worm gear assembly and the output gear are connected by the reduction gear set.

[0008] The working principle of the drive mechanism of this wheel retainer is as follows: the hydraulic motor starts and runs, driving the worm gear assembly through the coupling. The worm gear assembly drives the reduction gear set, which in turn transmits power to the output gear. The output gear drives the rotating shaft to rotate, causing the fixed end of the drive arm to rotate with the rotating shaft. During this process, the movable end of the drive arm drives the guide arm to swing, and finally, the guide arm enters the clearance slot of the platform. Compared with the prior art, this application uses a worm gear assembly and a reduction gear set in conjunction with a hydraulic motor to replace the chain for transmission. During operation, it can effectively avoid transmission failure caused by chain wear after long-term operation, ensuring the transmission effectiveness of the drive arm to the greatest extent. Furthermore, due to the mechanical structure of the worm gear and the reduction gear set, the meshing of the gear teeth during transmission can effectively prevent the drive arm from being unable to be effectively positioned when driven by the chain, thus preventing the drive arm from shaking and fully ensuring the reliability of the transmission.

[0009] In the aforementioned drive mechanism of the wheel retainer, the worm gear assembly includes a mounting base fixed to the platform, a worm and a worm wheel rotatably connected within the mounting base. The worm is connected to the hydraulic motor via a coupling, and the worm and the reduction gear set are connected via the worm wheel drive. Specifically, the worm gear assembly uses the mounting base as its main carrier, which is fixed to the platform to ensure its stability. Both the worm wheel and the worm are rotatably connected within the mounting base and mesh with each other. The drive end of the hydraulic motor is connected to the worm via a coupling, and the worm wheel is connected to the reduction gear set, thereby enabling the hydraulic motor to drive the drive arm.

[0010] In the aforementioned drive mechanism of the wheel retainer, the mounting base has vertically distributed and interconnected mounting openings and mounting slots on its side wall. The worm gear is rotatably connected in the mounting opening, and the worm is rotatably connected in the mounting slot. The mounting base has receiving slots on both sides of the mounting slot, both of which penetrate the outer wall of the mounting base. Each receiving slot contains a bearing, and both ends of the worm extend into the mounting slot and engage with the inner rings of the bearings. Specifically, the mounting base supports the worm gear through the mounting opening and the worm through the mounting slot, allowing for simple and quick assembly and disassembly of the worm gear relative to the mounting base, ensuring convenient maintenance and repair. Furthermore, by installing bearings in the receiving slots on both sides of the mounting slot and connecting the inner rings of the bearings to the ends of the worm, interference wear between the worm and the mounting base during rotation is effectively reduced.

[0011] In the aforementioned drive mechanism of the wheel retainer, a second rotating shaft is rotatably connected to the platform. The second rotating shaft passes through the mounting base and is fixedly connected to the worm gear. A engagement gear is fixedly connected to the second rotating shaft. The worm gear and the reduction gear assembly are connected through the engagement gear. Specifically, for the transmission between the worm gear assembly and the reduction gear set, an engagement gear is set on the second rotating shaft fixedly connected to the worm gear. The worm gear is then driven sequentially through the second rotating shaft, the engagement gear, and finally the reduction gear set.

[0012] In the aforementioned wheel retainer drive mechanism, an intermediate large gear set and an intermediate small gear set are provided on the platform between the drive swing arm and the reduction gear set. The intermediate large gear set includes a rotating shaft three rotatably connected to the platform and a large connecting gear fixed on the rotating shaft three. The intermediate small gear set includes a rotating shaft four rotatably connected to the platform and a small connecting gear fixed on the rotating shaft four. The large connecting gear meshes with the small connecting gear, the small connecting gear is connected to the output gear, and the large connecting gear is connected to the reduction gear set. The intermediate large gear set and intermediate small gear set compensate for the gap between the reduction gear set and the output gear, ensuring that the reduction gear set can drive the drive arm normally.

[0013] In the aforementioned wheel retainer drive mechanism, the reduction gear set comprises two sets. Each set includes a rotating shaft five rotatably connected to the platform, a transmission gear one fixed to the rotating shaft five, and a transmission gear two fixed to the rotating shaft five. The outer diameter of the transmission gear one is larger than that of the transmission gear two. The two sets of reduction gear sets mesh with the transmission gear one and the transmission gear two. One set of reduction gear sets meshes with the engagement gear through the transmission gear one, while the other set of reduction gear sets meshes with the large connecting gear through the transmission gear two. Specifically, two sets of reduction gear sets are provided. During operation, since the diameter of the transmission gear one is larger than that of the transmission gear two, and one set of transmission gear sets is connected to the engagement gear through the transmission gear two, the power transmission is achieved by inputting the transmission gear two of one set of transmission gear sets, outputting from the transmission gear one to the transmission gear two of the other set of reduction gear sets, and finally outputting to the large connecting gear through the transmission gear one of the reduction gear sets. This ensures smooth power transmission and stable transmission.

[0014] Compared with existing technologies, the drive mechanism of this wheel retainer has the following advantages:

[0015] The hydraulic motor, in conjunction with the worm gear assembly, reduction gear set, intermediate pinion gear set, and intermediate large gear set, transmits power to the drive arm, ensuring smooth transmission while improving transmission reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the drive mechanism of the wheel retainer. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the drive mechanism of the wheel retainer. Figure 2 .

[0018] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0019] Figure 4 This is a side view of the drive mechanism of this wheel retainer.

[0020] Figure 5 yes Figure 4 A sectional view taken along the AA direction.

[0021] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle.

[0022] Figure 7 This is a schematic diagram of the reduction gear set.

[0023] Figure 8This is a structural diagram of the mounting base.

[0024] In the diagram: 1. Platform; 11. Rotating shaft one; 111. Output gear; 12. Guide arm; 13. Drive swing arm; 14. Hydraulic motor; 15. Rotating shaft two; 151. Engaging gear; 2. Worm gear assembly; 21. Mounting base; 211. Mounting port; 212. Mounting groove; 213. Receiving groove; 2131. Bearing; 22. Worm gear; 23. Worm; 3. Reduction gear set; 31. Rotating shaft five; 32. Transmission gear one; 33. Transmission gear two; 4. Intermediate large gear set; 41. Rotating shaft three; 42. Large connecting gear; 5. Intermediate small gear set; 51. Rotating shaft four; 52. Small connecting gear. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1 and Figure 2 As shown, in the drive mechanism of this wheel retainer, the wheel retainer includes a platform 1, on which a rotating shaft 11 is rotatably connected, and an output gear 111 is fixed on the rotating shaft 11. The drive mechanism includes a guide arm 12, a drive swing arm 13, and a hydraulic motor 14. The main body of the hydraulic motor 14 is fixed on the platform 1. The drive swing arm 13 has a fixed end and a movable end. The fixed end of the drive swing arm 13 is fixedly connected to the rotating shaft 11, and the guide arm 12 is connected and fixed to the movable end of the drive swing arm 13. For the drive method between the drive swing arm 13 and the guide arm 12, please refer to the prior art document CN222522924U. It will not be described in detail in this embodiment. Figure 3-7 A worm gear assembly 2 is provided on the platform 1, specifically including a mounting base 21 fixed to the platform 1 by screws. The mounting base 21 is specifically rectangular and vertically arranged. The mounting base 21 has mounting openings 211 extending through its two sides. One side of the mounting base 21 has a mounting groove 212 located below the mounting opening 211. On this side of the mounting base 21, on both sides of the mounting groove 212, there are receiving grooves 213 extending through to the other two side walls of the mounting base 21. The worm gear assembly 2 also... The device includes a worm gear 22 and a worm 23. A rotating shaft 15 is rotatably connected to the platform 1 and passes through the mounting port 211. The worm gear 22 is located in the mounting port 211 and fixed to the rotating shaft 15. The middle part of the worm 23 is embedded in the mounting groove 212 and meshes with the worm gear 22. Both ends of the worm 23 pass through two receiving grooves 213. Each receiving groove 213 is provided with a bearing 2131 whose inner ring is engaged with the end of the worm 23. The worm 23 is connected to the drive end of the hydraulic motor 14 through a coupling.

[0027] like Figure 2, Figure 4 as well as Figure 5 As shown, on the platform 1, between the output gear 111 and the worm gear assembly 2, there are sequentially arranged intermediate small gear set 5, intermediate large gear set 4, and two sets of reduction gear sets 3. The intermediate small gear set 5 is located at the top and includes a rotating shaft 41 rotatably connected to the platform 1 and a small connecting gear 52 fixed to the rotating shaft 41. The intermediate large gear set 4 is located below the intermediate small gear set 5 and includes a rotating shaft 31 rotatably connected to the platform 1 and a large connecting gear 42 fixed to the rotating shaft 31. The small connecting gear 52 is connected to the output gear 111 and the large connecting gear 41 respectively. The two sets of reduction gears 3 are meshed. Each set includes a rotating shaft 31 rotatably connected to the platform 1 and a transmission gear 32 and a transmission gear 33 fixed on the rotating shaft 31. The two sets of reduction gears 3 are connected by the transmission gear 32 and the transmission gear 33. One set of reduction gears 3 meshes with the large connecting gear 42 through the transmission gear 33, and the other set of reduction gears 3 is connected with the worm gear assembly 2 through the transmission gear 32. Specifically, a coupling gear 151 is fixed on the rotating shaft 15, and the transmission gear 32 and the coupling gear 151 mesh.

[0028] Furthermore, as a further solution, the number of output gear 111 on shaft one 11, engagement gear 151 on shaft two 15, transmission gear one 32 and transmission gear two 33 on shaft three 41, small connecting gear 52 on shaft four 51, and large connecting gear 42 on shaft five 31 are all two, and they are all connected and transmitted according to the connection method in this embodiment. This ensures higher stability of the connection while ensuring power transmission, thereby ensuring the reliability of the transmission.

[0029] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0030] Although this document frequently uses terms such as platform 1, rotating shaft 11, output gear 111, guide arm 12, drive swing arm 13, hydraulic motor 14, rotating shaft 2 15, engagement gear 151, worm gear assembly 2, mounting base 21, mounting port 211, mounting groove 212, receiving groove 213, bearing 2131, worm gear 22, worm 23, reduction gear set 3, rotating shaft 5 31, transmission gear 1 32, transmission gear 2 33, intermediate large gear set 4, rotating shaft 3 41, large connecting gear 42, intermediate small gear set 5, rotating shaft 4 51, and small connecting gear 52, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A drive mechanism for a wheel retainer, the wheel retainer comprising a platform (1), a rotating shaft (11) rotatably connected to the platform (1), an output gear (111) fixedly connected to the rotating shaft (11), the drive mechanism comprising a guide arm (12), a drive swing arm (13), and a hydraulic motor (14) disposed on the platform (1), the fixed end of the drive swing arm (13) being fixedly connected to the rotating shaft (11), and the movable end being fixedly connected to the guide arm (12), characterized in that, The platform (1) is rotatably connected to a worm gear assembly (2) and at least one set of reduction gears (3). The hydraulic motor (14) and the worm gear assembly (2) are connected by a coupling. The worm gear assembly (2) and the output gear (111) are connected by the reduction gears (3).

2. The drive mechanism of the wheel retainer according to claim 1, characterized in that, The worm gear assembly (2) includes a mounting base (21) fixed on a platform (1), a worm (23) and a worm wheel (22) rotatably connected in the mounting base (21). The worm (23) is connected to the hydraulic motor (14) via a coupling. The worm (23) and the reduction gear set (3) are connected by transmission via the worm wheel (22).

3. The drive mechanism of the wheel retainer according to claim 2, characterized in that, The mounting base (21) has an installation port (211) and a mounting groove (212) that are distributed vertically and connected on its side wall. The worm gear (22) is rotatably connected in the installation port (211), and the worm (23) is rotatably connected in the mounting groove (212). The mounting base (21) has a receiving groove (213) on both sides of the mounting groove (212). Both receiving grooves (213) penetrate the outer wall of the mounting base (21). Each receiving groove (213) is fitted with a bearing (2131). The two ends of the worm (23) extend into the mounting groove (212) and are fitted with the inner ring of the bearing (2131).

4. The drive mechanism of the wheel retainer according to claim 2 or 3, characterized in that, A rotating shaft (15) is rotatably connected to the platform (1). The rotating shaft (15) passes through the mounting base (21) and is fixedly connected to the worm gear (22). A engagement gear (151) is fixedly connected to the rotating shaft (15). The worm gear (22) and the reduction gear set (3) are connected through the engagement gear (151).

5. The drive mechanism of the wheel retainer according to claim 4, characterized in that, An intermediate large gear set (4) and an intermediate small gear set (5) are provided on the platform (1) between the drive swing arm (13) and the reduction gear set (3). The intermediate large gear set (4) includes a rotating shaft three (41) rotatably connected to the platform (1) and a large connecting gear (42) fixed on the rotating shaft three (41). The intermediate small gear set (5) includes a rotating shaft four (51) rotatably connected to the platform (1) and a small connecting gear (52) fixed on the rotating shaft four (51). The large connecting gear (42) meshes with the small connecting gear (52), the small connecting gear (52) is connected to the output gear (111), and the large connecting gear (42) is connected to the reduction gear set (3).

6. The drive mechanism of the wheel retainer according to claim 5, characterized in that, The reduction gear set (3) has two sets. Each set of the reduction gear set (3) includes a rotating shaft five (31) rotatably connected to the platform (1), a transmission gear one (32) fixed on the rotating shaft five (31), and a transmission gear two (33) fixed on the rotating shaft five (31). The outer diameter of the transmission gear one (32) is larger than that of the transmission gear two (33). The two sets of reduction gear sets (3) mesh with the transmission gear two (33) through the transmission gear one (32). One set of reduction gear sets (3) meshes with the engagement gear (151) through the transmission gear one (32), and the other set of reduction gear sets (3) meshes with the large connecting gear (42) through the transmission gear two (33).

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