Wear-resistant device for driving shaft

Abstract

The utility model discloses a wear-resistant device for a driving shaft, which relates to the technical field of mechanical equipment and comprises a driving shaft main body, universal joint forks A are fixedly connected to two ends of the driving shaft main body, two groups of wear-resistant components are sleeved in the universal joint forks A, and cross shafts are sleeved in the wear-resistant components. And the surface of the driving shaft main body is sleeved with two groups of buffer assemblies. Due to the arrangement of the wear-resisting assembly, when the driving shaft body rotates, the universal joint fork A drives the universal joint fork to rotate, the universal joint fork drives the universal joint fork B to be transmitted to the rotating shaft, in the transmission process, the universal joint fork shakes in the universal joint fork A and the universal joint fork B, the wear-resisting ring is extruded by the pressure spring to be clamped between the universal joint fork A, and the wear-resisting assembly is arranged on the driving shaft body. When the pressure spring is subjected to shaking pressure, elastic force generated by deformation counteracts part of pressure and supports the wear-resistant ring all the time, so that the effect of reducing wear is achieved, and the wear resistance of the driving shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a drive shaft wear-resistant device. Background Art

[0002] The drive shaft is a transmission device for driving the wheels, located at the end of the automobile transmission system, and its function is to transmit the torque from the differential half-shaft gear to the drive wheels. In disconnected drive axles and steering drive axles, the transmission device for driving the wheels includes half-shafts and universal joint transmission devices, and constant velocity universal joints are mostly used. The drive shaft is located between the left and right drive wheels of a motor vehicle and provides power to the left and right drive wheels. The drive shaft is subjected to alternating stresses such as rotation, torsion, shear, tension, compression, and impact, which can also cause torsion and bending vibrations of the drive shaft, generating additional stress; the stress distribution is uneven; the drive shaft neck has sliding friction with the bearing, and a drive shaft wear-resistant device generally refers to a device or technology used to reduce the wear of the drive shaft caused by friction during use. This device is designed to extend the service life of the drive shaft and improve its performance and reliability. The drive shaft plays an important role in transmitting power from the engine to the wheels in the car.

[0003] The existing drive shaft wear-resistant device is not convenient for offsetting part of the pressure during actual use, and always supports the wear-resistant ring, reduces the friction and wear of the cross shaft, and improves the wear resistance of the drive shaft.

[0004] After searching the existing patent: Drive shaft wear-resistant device (publication number: CN216009281U), including a bottom seat, a fixed seat is provided at the bottom of the bottom seat, and a wear-resistant plate is provided at the bottom of the inner cavity of the bottom seat, and the wear-resistant plate is used to support the drive shaft; the wear-resistant plate includes an upper wear-resistant plate and a lower wear-resistant plate, the upper wear-resistant plate is used to connect the drive shaft, and the lower wear-resistant plate is connected to the bottom of the inner cavity of the bottom seat. The utility model replaces the friction between the drive shaft and the bearing with the friction between the wear-resistant plates. The wear-resistant plates themselves have good wear resistance. After damage, the wear-resistant plates can be replaced to extend the service life of the drive shaft.

[0005] Although the above patent replaces the friction between the drive shaft and the bearing with the friction between the wear-resistant plates, the wear-resistant plates themselves have good wear resistance and the service life of the drive shaft can be extended by replacing the wear-resistant plates after damage. However, it is not convenient to buffer and reduce the shock of the drive shaft surface, reduce the impact of splashing sand and gravel on the drive shaft during driving, and cause damage, thereby increasing the service life of the drive shaft.

[0006] Therefore, it is necessary to invent a drive shaft wear-resistant device to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a drive shaft wear-resistant device to solve the problem in the above background technology that it is inconvenient to offset part of the pressure and buffer the surface of the drive shaft.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drive shaft wear-resistant device, comprising a drive shaft body, both ends of the drive shaft body are fixedly connected with a universal joint fork A, two groups of wear-resistant components are sleeved inside the universal joint fork A, a cross shaft is sleeved inside the wear-resistant component, two groups of buffer components are sleeved on the surface of the drive shaft body, one end of the two groups of buffer components are fixedly connected with a protective shell, the tops of the two groups of protective shells are fixedly connected with three groups of fixing plates, and the fixing plates are sleeved inside with a limiting component.

[0009] Preferably, the wear-resistant assembly comprises a wear-resistant ring sleeved inside the universal joint fork A, and a pressure spring is fixedly connected to the bottom of the wear-resistant ring, so that the pressure spring can bear pressure and support the wear-resistant ring.

[0010] Preferably, the buffer assembly includes a clamping block sleeved on the surface of the driving shaft body, and a plurality of groups of buffer springs are fixedly connected to the surface of the clamping block. The buffer springs are convenient for reducing external impact and protecting the interior.

[0011] Preferably, the limiting assembly comprises a threaded bolt sleeved inside the fixing plate, and a horn cap is threadedly connected to the surface of the threaded bolt, which is convenient for screwing and fixing.

[0012] Preferably, both ends of the surface of the driving shaft body are sleeved with protective sleeves, and one end of the protective sleeve is sleeved with a fixing sleeve, which is convenient for protecting the interior and providing support.

[0013] Preferably, one end of the fixed sleeve is rotatably connected to a rotating shaft, and one end of the rotating shaft is fixedly connected to a universal joint fork B, and the universal joint fork B is convenient for connecting to the cross shaft and transmitting.

[0014] Preferably, a protective sleeve is sleeved on the surface of the pressure spring, and the material of the protective sleeve is rubber material. The protective sleeve is convenient for protecting the pressure spring and reducing damage.

[0015] Preferably, the surfaces of the universal joint fork A and the universal joint fork B are provided with fixing holes adapted to the wear-resistant rings, and one end of the protective sleeve is fixedly connected to a limiting hoop, which facilitates fixing the protective sleeve to the surface of the drive shaft body.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Through the setting of the wear-resistant component, when the driving shaft body rotates, the universal joint fork A drives the cross shaft to rotate, and the cross shaft drives the universal joint fork B, and then transmits the transmission to the rotating shaft. During the transmission process, the cross shaft shakes in the universal joint fork A and the universal joint fork B, and the pressure spring is used to squeeze the wear-resistant ring between the cross shaft and the universal joint fork A. When the pressure spring is subjected to the pressure of shaking, the elastic force generated by the deformation offsets part of the pressure and always supports the wear-resistant ring, thereby achieving the effect of reducing wear and improving the wear resistance of the driving shaft;

[0018] 2. Through the setting of the buffer component and the limit component, during installation, the clamping blocks on the two groups of protective shells are pressed against the surface of the drive shaft body, and then the fixing plates on one group of protective shells are pressed against the other group of fixing plates, and the threaded bolts are passed through the two groups of fixing plates, and fixed by rotating the horn cap on the surface of the threaded bolt. At the same time, when the protective shell is impacted, the pressure is transmitted to the buffer spring, and the buffer spring is deformed under force to generate elastic force to offset the impact, thereby achieving the effect of buffering and shock absorption, avoiding the drive shaft from being damaged by the impact of splashing sand and gravel during driving, and improving the service life of the drive shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a drive shaft wear-resistant device.

[0021] Figure 2 This is a schematic diagram of the disassembled structure of a drive shaft wear-resistant device of the utility model.

[0022] Figure 3 The utility model is a schematic diagram of the structure of a buffer component and a limit component of a drive shaft wear-resistant device.

[0023] Figure 4 This is a schematic diagram of the structure of a wear-resistant component of a drive shaft wear-resistant device of the utility model.

[0024] In the figure: 1. driving shaft body; 2. universal joint fork A; 3. wear-resistant component; 301. wear-resistant ring; 302. pressure spring; 4. cross shaft; 5. buffer component; 501. clamping block; 502. buffer spring; 6. protective shell; 7. fixing plate; 8. limiting component; 801. threaded bolt; 802. horn cap; 9. protective cover; 10. fixing sleeve; 11. rotating shaft; 12. universal joint fork B; 13. protective cover; 14. limiting hoop. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4 A drive shaft wear-resistant device shown in the figure includes a drive shaft body 1, both ends of the drive shaft body 1 are fixedly connected with a universal joint fork A2, two groups of wear-resistant components 3 are internally sleeved on the universal joint fork A2, and the wear-resistant component 3 is arranged to reduce wear and improve the wear resistance of the drive shaft, a cross shaft 4 is internally sleeved on the wear-resistant component 3, and two groups of buffer components 5 are sleeved on the surface of the drive shaft body 1. Through the arrangement of the buffer component 5 and the limit component 8, the effect of buffering and shock absorption is achieved to prevent the drive shaft from being damaged by the impact of splashing sand and gravel during driving, thereby improving the service life of the drive shaft body 1, one end of the two groups of buffer components 5 are fixedly connected with a protective shell 6, the top of the two groups of protective shells 6 are fixedly connected with three groups of fixing plates 7, and the fixing plate 7 is internally sleeved with a limiting component 8.

[0027] The wear-resistant assembly 3 includes a wear-resistant ring 301 sleeved inside the universal joint fork A2, and a pressure spring 302 is fixedly connected to the bottom of the wear-resistant ring 301. The pressure spring 302 is provided to bear pressure and support the wear-resistant ring 301.

[0028] The buffer assembly 5 includes a clamp block 501 sleeved on the surface of the driving shaft body 1, and a plurality of groups of buffer springs 502 are fixedly connected to the surface of the clamp block 501. The buffer springs 502 are arranged to reduce external impact and protect the interior.

[0029] The limiting component 8 includes a threaded bolt 801 which is sleeved inside the fixing plate 7. The surface of the threaded bolt 801 is threadedly connected with a horn cap 802. The setting of the horn cap 802 plays a role of screwing and fixing.

[0030] Both ends of the surface of the driving shaft body 1 are sleeved with protective sleeves 9, and one end of the protective sleeve 9 is sleeved with a fixed sleeve 10. The setting of the fixed sleeve 10 plays a role in protecting the interior and providing support.

[0031] One end of the fixed sleeve 10 is rotatably connected to a rotating shaft 11, and one end of the rotating shaft 11 is fixedly connected to a universal joint fork B12. The setting of the universal joint fork B12 plays a role in connecting the cross shaft 4 and transmitting.

[0032] The surface of the pressure spring 302 is sleeved with a protective cover 13 , which is made of rubber. The protective cover 13 protects the pressure spring 302 from damage.

[0033] The surfaces of the yoke A2 and the yoke B12 are provided with fixing holes compatible with the wear-resistant ring 301, and one end of the protective sleeve 9 is fixedly connected to the limiting hoop 14. The setting of the limiting hoop 14 fixes the protective sleeve 9 to the surface of the drive shaft body 1.

[0034] Working principle: when the driving shaft body 1 rotates, the universal joint fork A2 drives the cross shaft 4 to rotate, and the cross shaft 4 drives the universal joint fork B12, and then transmits it to the rotating shaft 11. During the transmission process, the cross shaft 4 shakes in the universal joint fork A2 and the universal joint fork B12, and the pressure spring 302 is used to squeeze the wear-resistant ring 301 to be stuck between the cross shaft 4 and the universal joint fork A2. When the pressure spring 302 receives the pressure of shaking, the elastic force generated by the deformation offsets part of the pressure and always supports the wear-resistant ring 301. During installation, the clamping blocks 501 on the two groups of protective shells 6 are pressed against the surface of the driving shaft body 1, and then the fixing plates 7 on one group of protective shells 6 are pressed against the other group of fixing plates 7, and the threaded bolt 801 is passed through the two groups of fixing plates 7, and the horn cap 802 is used to rotate on the surface of the threaded bolt 801 to fix it. At the same time, when the protective shell 6 is impacted, the pressure is transmitted to the buffer spring 502, and the buffer spring 502 is deformed by force to generate elastic force to offset the impact.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drive shaft wear-resistant device, comprising a drive shaft body (1), characterized in that: Both ends of the drive shaft body (1) are fixedly connected with a universal joint fork A (2), two sets of wear-resistant components (3) are sleeved inside the universal joint fork A (2), a cross shaft (4) is sleeved inside the wear-resistant component (3), two sets of buffer components (5) are sleeved on the surface of the drive shaft body (1), one end of the two sets of buffer components (5) are fixedly connected with a protective shell (6), the tops of the two sets of protective shells (6) are fixedly connected with three sets of fixing plates (7), and the fixing plates (7) are sleeved inside with a limiting component (8).

2. A drive shaft wear-resistant device according to claim 1, characterized in that: The wear-resistant assembly (3) comprises a wear-resistant ring (301) sleeved inside the universal joint fork A (2), and a pressure spring (302) is fixedly connected to the bottom of the wear-resistant ring (301).

3. A drive shaft wear-resistant device according to claim 1, characterized in that: The buffer assembly (5) comprises a clamping block (501) sleeved on the surface of the driving shaft body (1), and a plurality of groups of buffer springs (502) are fixedly connected to the surface of the clamping block (501).

4. A drive shaft wear-resistant device according to claim 1, characterized in that: The limiting assembly (8) comprises a threaded bolt (801) sleeved inside the fixing plate (7), and a horn cap (802) is threadedly connected to the surface of the threaded bolt (801).

5. The drive shaft wear-resistant device according to claim 1, characterized in that: Both ends of the surface of the driving shaft body (1) are sleeved with protective sleeves (9), and one end of the protective sleeve (9) is sleeved with a fixing sleeve (10).

6. A drive shaft wear-resistant device according to claim 5, characterized in that: One end of the fixed sleeve (10) is rotatably connected to a rotating shaft (11), and one end of the rotating shaft (11) is fixedly connected to a universal joint fork B (12).

7. A drive shaft wear-resistant device according to claim 2, characterized in that: A protective sleeve (13) is sleeved on the surface of the pressure spring (302), and the material of the protective sleeve (13) is rubber.

8. A drive shaft wear-resistant device according to claim 1, characterized in that: The surfaces of the universal joint fork A (2) and the universal joint fork B (12) are both provided with fixing holes matched with the wear-resistant ring (301), and one end of the protective sleeve (9) is fixedly connected to the limiting hoop (14).

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