Wheel transmission mechanism

Abstract

The utility model relates to a wheel transmission mechanism which comprises a driving wheel. The driving device is arranged on one axial side of the driving wheel; the transmission bevel gear is connected with an output shaft of the driving device; the gear shaft and helical tooth assembly is arranged on the side, away from the driving device, of the driving wheel, a gear shaft and helical teeth in the gear shaft and helical tooth assembly are coaxially arranged, and the helical teeth in the gear shaft and helical tooth assembly are meshed with the transmission helical gear; wherein inner teeth are arranged on the inner diameter of the driving wheel in the circumferential direction, and the inner teeth are meshed with a gear shaft in the gear shaft and helical tooth assembly. According to the utility model, one driving wheel is independently driven by one driving device, so that the power of the driving wheel can be accurately adjusted. The driving device and the gear shaft helical tooth assembly are arranged on the two opposite sides of the driving wheel respectively, other equipment is not needed, and the driving wheel is clamped and fixed through the driving device and the gear shaft helical tooth assembly. Meanwhile, inner teeth are arranged at the inner diameter position of the driving wheel, and the driving wheel is meshed with the gear shaft and helical tooth assembly through the inner teeth.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel transmission, in particular to a wheel transmission mechanism. Background Art

[0002] As an important mechanical component, wheels can effectively reduce the contact area with the ground, thereby reducing friction and making objects easier to move.

[0003] In construction sites and factory areas where heavy objects need to be moved, the round design of wheels effectively reduces the contact area with the ground, thereby reducing friction and making objects easier to move. To improve efficiency, wheels are often driven by a drive device. However, the heavy objects moved at construction sites and factory areas are so heavy that they can easily exceed the capacity of ordinary drive devices. Insufficient traction of the drive device reduces handling efficiency, and overloading can also shorten the service life of the drive device.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a wheel transmission mechanism to improve the traction of the equipment using the vehicle.

[0006] The technical solution of the utility model is as follows:

[0007] The wheel transmission mechanism includes: a driving wheel; a driving device, which is arranged on one axial side of the driving wheel; a transmission helical gear, which is connected to the output shaft of the driving device; a pinion helical gear assembly, which is arranged on the side of the driving wheel away from the driving device, wherein the pinion and the helical teeth in the pinion helical gear assembly are coaxially arranged, and the helical teeth in the pinion helical gear assembly mesh with the transmission helical gear; wherein internal teeth are circumferentially arranged at the inner diameter of the driving wheel, and the internal teeth mesh with the pinion in the pinion helical gear assembly.

[0008] A further technical solution is that the diameter of the root circle of the internal teeth is larger than the diameter of the inner diameter of the driving wheel.

[0009] A further technical solution is that a connecting support frame is provided, the gear shaft helical gear assembly is provided on the connecting support frame, a circular ring is extended from the connecting support frame, and the driving wheel is sleeved on the circular ring.

[0010] A further technical solution is that a bearing is provided at the inner diameter of the driving wheel, and the driving wheel is mounted on the connecting support frame through the bearing sleeve.

[0011] A further technical solution is that a fixing cylinder is extended from the connecting support frame, the fixing cylinder and the driving wheel are in the same plane, and the fixing cylinder is arranged along the radial direction of the driving wheel.

[0012] A further technical solution is that an oil seal is provided between the ring and the driving wheel.

[0013] A further technical solution is that the driving device passes through the inner diameter of the driving wheel, and the driving device is screwed to the connecting support frame.

[0014] A further technical solution is that a cover plate is provided on a side of the connecting support frame away from the driving wheel, and the helical tooth portion of the gear shaft helical tooth assembly is provided between the connecting support frame and the cover plate.

[0015] A further technical solution is that a cylindrical pin is further provided between the connecting support frame and the cover plate.

[0016] A further technical solution is that a retaining spring is provided on the output shaft of the driving device.

[0017] The beneficial technical effects of the utility model are as follows:

[0018] (1) The wheel transmission mechanism of the present invention is provided with a driving device directly near the driving wheel, that is, one driving wheel is driven by a driving device alone, so that the power of the driving wheel can be accurately adjusted. The driving device and the pinion helical gear assembly are respectively provided on two opposite sides of the driving wheel, and no other equipment is required. The driving device and the pinion helical gear assembly clamp and fix the driving wheel. At the same time, internal teeth are provided at the inner diameter of the driving wheel, and the driving wheel engages the pinion helical gear assembly through the internal teeth. That is, the driving device drives the wheel through the meshing relationship between the teeth, and the transmission of the meshing between the teeth can transmit a larger torque, give the driving wheel a larger torque, and generate a greater traction force. In addition, the transmission helical gear and the pinion helical gear assembly are meshed with helical teeth. During the helical gear meshing process, the contact and disengagement between the teeth are gradually reduced, so that the transmission is smooth and the noise is small. This transmission also reduces the influence of manufacturing errors on the transmission, and is suitable for high-speed and heavy-load conditions.

[0019] (2) Furthermore, the connecting support frame is provided with a fixing cylinder along the radial direction of the driving wheel, so that the driving wheel can be easily installed.

[0020] (3) Furthermore, the diameter of the root circle of the internal teeth is larger than the diameter of the inner diameter of the drive wheel. When the pinion-shaft helical gear assembly engages the internal teeth, the shaft portion of the pinion-shaft helical gear assembly can extend into and be positioned close to the inner diameter of the drive wheel. In this case, the inner diameter of the drive wheel limits the radial movement of the pinion-shaft helical gear assembly, thereby improving the stability of the wheel transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure shows a schematic diagram of the main structure of the wheel transmission mechanism of the present invention.

[0022] Figure 2 Shown is an exploded structural diagram of the wheel transmission mechanism of the present invention.

[0023] Markings in the accompanying drawings:

[0024] 1. Driving device; 2. Driving wheel; 21. Internal teeth; 3. Transmission helical gear; 4. Pinion shaft helical gear assembly; 5. Connecting support frame; 51. Oil seal; 52. Ring; 53. Screw; 54. Fixing cylinder; 6. Cover plate; 7. Cylindrical pin; 8. Circlip. DETAILED DESCRIPTION

[0025] To make the purposes, features, and advantages of this utility model more clearly understood, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in this specification for the understanding and reading of those familiar with this technology. They are not intended to limit the conditions for the implementation of this utility model and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, as long as they do not affect the efficacy and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0026] In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like are defined as indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0027] Figure 1 The figure shows a schematic diagram of the main structure of the wheel transmission mechanism of the present invention. Figure 2 The exploded structural diagram of the wheel transmission mechanism of the present invention is shown. Figure 1 and Figure 2The wheel transmission mechanism includes a drive wheel 2, a drive device 1, a transmission helical gear 3 and a pinion helical gear assembly 4. The drive device 1 is arranged on one axial side of the drive wheel 2, that is, one drive wheel 2 is driven by one drive device 1 alone, so that the power of the drive wheel can be precisely adjusted. The drive device 1 can be an engine or an electric motor. The transmission helical gear 3 is connected to the output shaft of the drive device 1. The pinion helical gear assembly 4 is arranged on the side of the drive wheel 2 away from the drive device 1. Without the need for other equipment, the drive device 1 and the pinion helical gear assembly 4 clamp and fix the drive wheel 2. The pinion shaft and the helical teeth in the pinion helical gear assembly 4 are coaxially arranged, and the helical teeth in the pinion helical gear assembly 4 mesh with the transmission helical gear 3. Among them, internal teeth 21 are circumferentially arranged at the inner diameter of the drive wheel 2, and the internal teeth 21 mesh with the pinion shaft in the pinion helical gear assembly 4. That is, the drive device 1 drives the wheel through the inter-tooth meshing relationship. The inter-tooth meshing transmission can transmit a larger torque, giving the drive wheel 2 a larger torque and generating greater traction. In addition, the transmission helical gear 3 and the gear shaft helical gear assembly 4 are engaged with each other through helical teeth. During the helical tooth engagement process, the contact and disengagement between the teeth are gradually reduced, so that the transmission is smooth and the noise is low. This transmission also reduces the impact of manufacturing errors on the transmission and is suitable for high-speed and heavy-load working conditions.

[0028] Please refer to Figure 2 The root diameter of the internal teeth 21 is larger than the inner diameter of the drive wheel 2. When the helical gear assembly engages the internal teeth 21, the shaft of the pinion-shaft helical gear assembly 4 can extend into and approach the inner diameter of the drive wheel 2. The inner diameter of the drive wheel 2 then restricts radial movement of the pinion-shaft helical gear assembly 4, improving the stability of the wheel transmission mechanism.

[0029] Preferably, a connecting support frame 5 is also provided, on which the pinion-shaft helical gear assembly 4 is mounted. A circular ring 52 extends from the connecting support frame 5, and the drive wheel 2 is sleeved on the circular ring 52. A bearing is provided at the inner diameter of the drive wheel 2, and the drive wheel 2 is sleeved on the connecting support frame 5 via the bearing. The connecting support frame 5 secures the output end of the drive device 1, the transmission helical gear 3, and the pinion-shaft helical gear assembly 4.

[0030] More preferably, an oil seal 51 is provided between the ring 52 and the drive wheel 2. This seal limits lubricant leakage from the inner diameter of the drive wheel 2, protecting other mechanical components from contamination. A retaining spring 8 is provided on the output shaft of the drive device 1 to prevent axial movement between the drive device 1, the drive wheel 2, and the connecting support frame 5.

[0031] Please refer to Figure 2 , a fixing cylinder 54 is extended on the connecting support frame 5, the fixing cylinder 54 and the driving wheel 2 are in the same plane, and the fixing cylinder 54 is arranged along the radial direction of the driving wheel 2. In this way, the driving wheel 2 can be easily installed on the transportation equipment.

[0032] Preferably, a cover plate 6 is provided on the side of the connecting support frame 5 facing away from the drive wheel 2. The helical teeth of the pinion-shaft helical-gear assembly 4 are positioned between the connecting support frame 5 and the cover plate 6. The drive mechanism 1 passes through the inner diameter of the drive wheel 2 and is connected to the connecting support frame 5 via screws 53. The connecting support frame 5 and the cover plate 6 are also connected via screws 53. Screws 53 provide a simple, cost-effective, and easily disassembled connection.

[0033] More preferably, a cylindrical pin 7 is further provided between the connecting support frame 5 and the cover plate 6. Before the connecting support frame 5 and the cover plate 6 are installed, the cylindrical pin 7 can be used to quickly locate the positional relationship between the support frame and the cover plate 6.

[0034] The specific workflow of this utility model is as follows:

[0035] When the drive unit 1 is started, the output shaft of the drive unit 1 outputs torque, which is transmitted to the pinion helical gear assembly 4 via the transmission helical gear 3. The pinion helical gear assembly 4 then transmits the torque to the drive wheel 2 via the internal teeth 21, causing the drive wheel 2 to rotate. During this transmission process, the magnitude of the torque output by the drive unit 1 changes according to the transmission ratios between the transmission helical gear 3 and the pinion helical gear assembly 4, and between the pinion helical gear assembly 4 and the internal teeth 21, thereby varying the speed and torque of the drive wheel 2.

[0036] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. Wheel transmission mechanism, characterized in that: include: drive wheels; A driving device, arranged on one axial side of the driving wheel; a transmission helical gear connected to the output shaft of the driving device; a gear shaft helical gear assembly, disposed on a side of the drive wheel away from the drive device, wherein the gear shaft and the helical gear in the gear shaft helical gear assembly are coaxially disposed, and the helical gear in the gear shaft helical gear assembly meshes with the transmission helical gear; Wherein, internal teeth are circumferentially arranged at the inner diameter of the driving wheel, and the internal teeth mesh with the gear shaft in the gear shaft helical gear assembly.

2. The wheel transmission mechanism according to claim 1, wherein: The diameter of the root circle of the internal teeth is larger than the diameter of the inner diameter of the driving wheel.

3. The wheel transmission mechanism according to claim 1, wherein: A connecting support frame is also provided, the gear shaft helical gear assembly is provided on the connecting support frame, a circular ring is extended from the connecting support frame, and the driving wheel is sleeved on the circular ring.

4. The wheel transmission mechanism according to claim 3, wherein: A bearing is provided at the inner diameter of the driving wheel, and the driving wheel is sleeved on the connecting support frame through the bearing.

5. The wheel transmission mechanism according to claim 3, wherein: A fixing cylinder is extended from the connecting support frame, the fixing cylinder and the driving wheel are in the same plane, and the fixing cylinder is arranged along the radial direction of the driving wheel.

6. The wheel transmission mechanism according to claim 3, wherein: An oil seal is provided between the circular ring and the driving wheel.

7. The wheel transmission mechanism according to claim 3, wherein: The driving device passes through the inner diameter of the driving wheel, and the driving device is screwed to the connecting support frame.

8. The wheel transmission mechanism according to claim 3, wherein: A cover plate is provided on a side of the connecting support frame away from the driving wheel, and the helical tooth portion of the gear shaft helical tooth assembly is provided between the connecting support frame and the cover plate.

9. The wheel transmission mechanism according to claim 8, wherein: A cylindrical pin is further provided between the connecting support frame and the cover plate.

10. The wheel transmission mechanism according to claim 1, wherein: A retaining spring is provided on the output shaft of the driving device.

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