Electric fork integrated hub brake drum drive axle

Abstract

The utility model relates to the technical field of drive axles, and discloses an electric fork integrated hub brake drum drive axle which comprises a device body, a drive axle mechanism is arranged on the device body, the drive axle mechanism comprises a half-shaft bolt, the half-shaft bolt is arranged at the side end of the device body, and the half-shaft bolt is arranged on the device body. A hub nut is arranged in the device body, a hub bolt is arranged in the hub nut, the side end of the device body is fixedly connected with a front axle housing, and a hub brake drum is arranged in the front axle housing. According to the electric fork integrated hub brake drum drive axle, in order to improve the working efficiency of the hub brake drum drive axle, the drive axle mechanism is arranged to be matched with the movement of the hub brake drum, the left brake, the front axle housing, the right brake, the tapered roller bearing, the oil seal, the half shaft, the brake bolt, the spring pad circle and the half shaft gasket, and the hub brake drum is driven to rotate through the operation of the integrated hub brake drum structure; therefore, the space is saved, and the installation of the small rim is met.

Description

Technical Field

[0001] The utility model relates to the technical field of drive axles, in particular to an electric fork-connected wheel hub brake drum drive axle. Background Art

[0002] With the rapid development of the logistics industry and the widespread application of electric forklifts in warehousing and logistics, higher requirements are placed on the performance and structural optimization of electric forklifts. The traditional drive axle structure has gradually exposed its limitations in some aspects, such as large space occupation and high center of gravity affecting safety.

[0003] In traditional drive axle designs, the wheel hub and brake drum are usually designed and installed separately, which not only requires more connecting parts but also takes up more space. For some small electric forklifts, this is not conducive to the compactness and flexibility of their overall structure. Moreover, the larger space occupied may affect other performance parameters of the vehicle, such as turning radius. At the same time, traditional designs may not fully consider how to lower the center of gravity of the forklift and improve the safety performance of the entire vehicle by optimizing the use of drive tires.

[0004] In view of this, we propose an electric fork integrated wheel hub brake drum drive axle. Utility Model Content

[0005] The purpose of the utility model is to provide an electric fork integrated wheel hub brake drum drive axle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric fork integrated wheel hub brake drum drive axle, comprising a device body, on which a drive axle mechanism is provided, the drive axle mechanism comprising:

[0007] A half-axle bolt is provided at the side end of the device body, a hub nut is provided in the device body, a hub bolt is provided in the hub nut, a side end of the device body is fixedly connected to the front axle housing, a hub brake drum is provided in the front axle housing, and a left brake is provided at the end of the hub brake drum away from the hub nut;

[0008] A vent plug is provided on the device body, a hexagonal plug is provided on the side end of the device body, a right brake is provided on the end of the device body away from the front axle housing, a tapered roller bearing is movably installed in the device body, a square rubber sealing ring is sleeved in the device body, an oil seal is provided in the device body, a round nut is provided in the device body, and a thrust washer is provided at one end of the round nut;

[0009] A half-shaft is fixedly installed on the side end of the device body, a circular ring is fixedly installed on the lower end of the half-shaft, an oil seal hole is opened in the device body, an oil seal baffle is fixedly installed on one end of the oil seal hole, a brake bolt is fixedly installed in the device body, a spring washer is fixedly installed on one end of the brake bolt, and a half-shaft gasket is provided at the lower end of the half-shaft.

[0010] Preferably, a driving tire is provided in the device body, and a spline is provided in the device body.

[0011] Preferably, a brake cable is movably installed in the front axle housing.

[0012] Preferably, a brake oil inlet is provided in the front axle housing.

[0013] Preferably, a cylindrical pin is fixedly mounted on the surface of the device body.

[0014] Preferably, the number of the wheel hub nuts is multiple groups, and they are mirror-distributed on the device body; the number of the front axle housings is multiple groups, and they are mirror-distributed at both ends of the device body.

[0015] Compared with the prior art, the present invention provides an electric fork integrated wheel hub brake drum drive axle, which has the following beneficial effects:

[0016] 1. In order to improve the working efficiency of the hub brake drum drive axle, the electric fork connected hub brake drum drive axle is equipped with a drive axle mechanism to coordinate the movement of the hub brake drum, left brake, front axle housing, right brake, tapered roller bearing, oil seal, half shaft, brake bolt, spring washer, and half shaft gasket. Through the operation of the connected hub brake drum structure, space is saved to meet the installation requirements of small rims.

[0017] 2. The electric forklift's integrated hub brake drum drive axle is designed to use smaller drive tires. By setting the drive tires, coordinating the movement of the splines, brake cables, brake oil inlets, and cylindrical pins, the center of gravity of the forklift is lowered, making the safety performance of the entire vehicle higher, thereby improving the utilization efficiency of the hub brake drum drive axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic top view of the overall structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the structural device body of the utility model;

[0020] Figure 3 This is a side view of the structural device body of the utility model;

[0021] Figure 4This is a schematic diagram of the cross section of the front axle housing of the utility model structure;

[0022] Figure 5 This is a schematic diagram of a top view of the cross-section of the structural device body of the utility model;

[0023] Figure 6 This is a schematic side cross-sectional view of the structural device body of the utility model.

[0024] In the figure: 1. Device body; 2. Drive axle mechanism; 21. Half-axle bolt; 22. Hub nut; 23. Hub bolt; 24. Hub brake drum; 25. Left brake; 26. Front axle housing; 27. Breather plug; 28. Hexagon socket plug; 29. ​​Right brake; 211. Tapered roller bearing; 212. Square rubber seal; 213. Oil seal; 214. Round nut; 215. Thrust washer; 216. Half-axle; 217. Dangling ring; 218. Oil seal hole; 219. Oil seal retaining circle; 221. Brake bolt; 222. Spring washer; 223. Half-axle gasket; 3. Drive tire; 31. Spline; 32. Brake cable; 33. Brake oil inlet; 34. Cylindrical pin. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The utility model provides a technical solution: an electric fork integrated wheel hub brake drum drive axle, comprising a device body 1, on which a drive axle mechanism 2 is provided.

[0027] In one embodiment of the present invention, the drive axle mechanism 2 includes a half-axle bolt 21, a half-axle bolt 21 is provided at the side end of the device body 1, a hub nut 22 is provided in the device body 1, the number of the hub nuts 22 is multiple groups, and they are mirror-imaged on the device body 1, a hub bolt 23 is provided in the hub nut 22, the side end of the device body 1 is fixedly connected to the front axle housing 26, the number of the front axle housing 26 is multiple groups, and they are mirror-imaged at both ends of the device body 1, a hub brake drum 24 is provided in the front axle housing 26, and a left brake 25 is provided at the end of the hub brake drum 24 away from the hub nut 22, a vent plug 27 is provided on the device body 1, and an inner hexagonal plug 28 is provided at the side end of the device body 1, and the device body 1 is far away A right brake 29 is provided at one end of the front axle housing 26, a tapered roller bearing 211 is movably installed in the device body 1, a square rubber sealing ring 212 is sleeved in the device body 1, an oil seal port 213 is provided in the device body 1, a round nut 214 is provided in the device body 1, a thrust washer 215 is provided at one end of the round nut 214, a half shaft 216 is fixedly installed at the side end of the device body 1, a circular ring 217 is fixedly installed at the lower end of the half shaft 216, an oil seal hole 218 is provided in the device body 1, an oil seal baffle 219 is fixedly installed at one end of the oil seal hole 218, a brake bolt 221 is fixedly installed in the device body 1, a spring washer 222 is fixedly installed at one end of the brake bolt 221, and a half shaft 216 is fixedly installed at the side end of the device body 1. A half-axle gasket 223 is provided at the lower end, and a half-axle bolt 21 is provided at the side end of the device body 1. It cooperates with the hub nut 22, hub bolt 23 and other components in the device body 1. The half-axle bolt 21 plays a role of connection and fixation, ensuring the structural stability of the entire drive axle mechanism 2. The cooperation of the hub nut 22 and the hub bolt 23 further strengthens this connection, so that the wheel hub can be stably installed on the device body 1. A hub brake drum 24 is provided in the front axle housing 26, and a left brake 25 is provided at one end of the hub brake drum 24. When the vehicle needs to brake, the left brake 25 will apply braking force to the hub brake drum 24, and the wheel stops rotating through friction. At the same time, the front axle housing 26 may also be provided with a The brake cable 32 and other components can transmit the braking signal to control the braking operation of the left brake 25. A brake oil inlet 33 is also provided in the front axle housing 26, through which the necessary lubrication and cooling oil can be provided to the brake to ensure the normal operation of the brake. The side end of the device body 1 is fixedly installed with a half-shaft 216, and the lower end of the half-shaft 216 is fixedly installed with a ring 217 and other components. The half-shaft 216 plays the role of transmitting power in the drive axle mechanism 2, and transmits the torque from the power source such as the motor to the wheel hub, thereby driving the wheel to rotate. A tapered roller bearing 211 is movably installed in the device body 1. The tapered roller bearing 211 provides support for the rotation of components such as the half-shaft 216 and reduces friction.It can withstand large radial and axial loads, ensuring the stability and smoothness of the half-shaft 216 during rotation. Components such as the square rubber seal 212 and oil seal 213 act as seals, preventing oil leakage and protecting the tapered roller bearing 211 and other internal components. Meanwhile, components such as the round nut 214 and thrust washer 215 are used to secure and adjust the position of the tapered roller bearing 211 to ensure its proper operation. The one-piece wheel hub brake drum 24 structure achieves a space-saving effect. This structure integrates the wheel hub and brake drum, reducing the connecting components and space required between the two in traditional structures, thereby meeting the requirements of small wheel rim installation. In practical applications, for vehicles such as electric forklifts with limited space, this one-piece wheel hub brake drum 24 drive axle can better adapt to its structural design and improve the vehicle's overall performance.

[0028] In one embodiment of the present utility model, a drive tire 3 is provided in the device body 1, a spline 31 is provided in the device body 1, a brake cable 32 is movably installed in the front axle housing 26, a brake oil inlet 33 is provided in the front axle housing 26, and a drive tire 3 is provided in the device body 1. By providing the drive tire 3 and cooperating with the movement of components such as the spline 31, the vehicle can use a smaller drive tire 3. The smaller drive tire 3 will lower the center of gravity of the forklift, thereby improving the safety performance of the entire vehicle. When the vehicle is driving, the drive tire 3 rotates under the power transmitted by the half-shaft 216, and the spline 31 ensures the accuracy and stability of the power transmission. At the same time, components such as the cylindrical pin 34 also play a role in positioning and fixing, ensuring the normal operation of the drive tire 3.

[0029] Working principle: The half-axle bolt 21 is set at the side end of the device body 1, and it cooperates with the hub nut 22, hub bolt 23 and other components in the device body 1. The half-axle bolt 21 plays a role of connection and fixing, ensuring the structural stability of the entire drive axle mechanism 2. The cooperation of the hub nut 22 and the hub bolt 23 further strengthens this connection, so that the wheel hub can be stably installed on the device body 1. A hub brake drum 24 is set in the front axle housing 26, and a left brake 25 is set at one end of the hub brake drum 24. When the vehicle needs to brake, the left brake 25 will apply braking force to the hub brake drum 24, and the wheel stops rotating through friction. At the same time, the front axle housing 26 may also be provided with a Components such as the brake cable 32 can transmit brake signals to control the braking operation of the left brake 25. A brake oil inlet 33 is also provided in the front axle housing 26, through which the necessary lubrication and cooling oil can be provided to the brake to ensure the normal operation of the brake. A half-shaft 216 is fixedly installed on the side end of the device body 1, and a ring 217 and other components are fixedly installed on the lower end of the half-shaft 216. The half-shaft 216 plays a role in transmitting power in the drive axle mechanism 2, transmitting torque from a power source such as a motor to the wheel hub, thereby driving the wheel to rotate. A tapered roller bearing 211 is movably installed in the device body 1, and the tapered roller bearing 211 provides support for the rotation of components such as the half-shaft 216. Support and reduce friction, it can withstand large radial and axial loads, ensure the stability and smoothness of the half shaft 216 during rotation, the square rubber seal 212 and the oil seal 213 and other components play a sealing role to prevent oil leakage and protect the tapered roller bearing 211 and other internal components. At the same time, the round nut 214 and the thrust washer 215 and other components are used to fix and adjust the position of the tapered roller bearing 211 to ensure its normal operation. Through the operation of the one-piece hub brake drum 24 structure, the effect of saving space is achieved. This structure integrates the hub and the brake drum, reducing the connecting components and space occupied between the two in the traditional structure, thereby meeting the needs of small rim installation. In practical applications, for some vehicles such as electric forklifts with limited space, this one-piece wheel hub brake drum 24 drive axle can better adapt to its structural design and improve the overall performance of the vehicle. A drive tire 3 is provided in the device body 1. By providing the drive tire 3 and coordinating the movement of components such as the spline 31, the vehicle can use a smaller drive tire 3. The smaller drive tire 3 will lower the center of gravity of the forklift, thereby improving the safety performance of the entire vehicle. When the vehicle is driving, the drive tire 3 rotates under the power transmitted by the half-shaft 216, and the spline 31 ensures the accuracy and stability of the power transmission. At the same time, components such as the cylindrical pin 34 also play a role in positioning and fixing, ensuring the normal operation of the drive tire 3.

[0030] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An electric fork-integrated wheel hub brake drum drive axle, comprising a device body (1), a drive axle mechanism (2) being provided on the device body (1), and characterized in that: The drive axle mechanism (2) comprises: A half-axle bolt (21), a half-axle bolt (21) is provided at a side end of the device body (1), a hub nut (22) is provided in the device body (1), a hub bolt (23) is provided in the hub nut (22), a front axle housing (26) is fixedly connected to the side end of the device body (1), a hub brake drum (24) is provided in the front axle housing (26), and a left brake (25) is provided at one end of the hub brake drum (24) away from the hub nut (22); A vent plug (27) is provided on the device body (1), a hexagonal plug (28) is provided on the side end of the device body (1), a right brake (29) is provided on the end of the device body (1) away from the front axle housing (26), a tapered roller bearing (211) is movably installed in the device body (1), a square rubber sealing ring (212) is provided in the device body (1), an oil seal (213) is provided in the device body (1), a round nut (214) is provided in the device body (1), and a thrust washer (215) is provided at one end of the round nut (214); A half shaft (216) is fixedly mounted on the side end of the device body (1), a circular ring (217) is fixedly mounted on the lower end of the half shaft (216), an oil seal hole (218) is provided in the device body (1), an oil seal retaining circle (219) is fixedly mounted on one end of the oil seal hole (218), a brake bolt (221) is fixedly mounted in the device body (1), a spring washer (222) is fixedly mounted on one end of the brake bolt (221), and a half shaft gasket (223) is provided on the lower end of the half shaft (216).

2. The electric fork integrated hub brake drum drive axle according to claim 1, characterized in that: A driving tire (3) is provided in the device body (1), and a spline (31) is provided in the device body (1).

3. The electric fork integrated hub brake drum drive axle according to claim 1, characterized in that: A brake cable (32) is movably installed in the front axle housing (26).

4. The electric fork integrated hub brake drum drive axle according to claim 1, characterized in that: A brake oil inlet (33) is provided in the front axle housing (26).

5. The electric fork integrated hub brake drum drive axle according to claim 1, characterized in that: A cylindrical pin (34) is fixedly mounted on the surface of the device body (1).

6. The electric fork integrated hub brake drum drive axle according to claim 1, characterized in that: The number of the wheel hub nuts (22) is multiple, and they are mirror-imaged and distributed on the device body (1); the number of the front axle housings (26) is multiple, and they are mirror-imaged and distributed at both ends of the device body (1).

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