Quickly-assembled electric vehicle aluminum bearing

Abstract

The utility model relates to aluminium bearing technology field especially relates to a quick -wearing electric motor car aluminium bearing. Its technical scheme includes aluminium bearing body, installation pipe, presss from both sides, ball bearing and bearing seat, aluminium bearing body both ends all are provided with installation pipe, bearing seat inside is provided with ball bearing, the inside of installation pipe is provided with stroke hole, the inside slide of stroke hole is installed with positioning rod, ball bearing and positioning rod between are provided with the press ring, the positioning ring outer wall sets up the limit ring, the limit ring with installation pipe outer wall between is provided with spring no.

Description

Technical Field

[0001] This utility model relates to the field of aluminum bearing technology, and in particular to a quick-installation aluminum bearing for electric vehicles. Background Technology

[0002] The aluminum bearing body is a core load-bearing component made of aluminum alloy by gravity casting. It has an integrated structure with mounting tubes at both ends, integrating assembly, positioning and support functions. It is used to fix the ball bearing and shaft, such as the foot pedal shaft, to provide stable support for the shaft rotation, while transmitting and distributing the mechanical load during driving, ensuring the smooth operation and safety of the electric vehicle. Traditional electric vehicle aluminum bearing seats mostly use bolts to fix the bearings, which is a complicated assembly process that requires tools such as wrenches, is time-consuming and labor-intensive, and has low mass production efficiency. Therefore, we propose a quick-installation electric vehicle aluminum bearing seat to solve the existing problems. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the background technology by proposing a quick-installation aluminum bearing for electric vehicles.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation electric vehicle aluminum bearing, comprising an aluminum bearing body, an mounting tube, a pressure sleeve, a ball bearing, and a bearing seat. The aluminum bearing body has mounting tubes at both ends. An assembly groove is formed inside the mounting tube, and a bearing seat is placed inside the assembly groove. A ball bearing is placed inside the bearing seat. A series of stroke holes arranged in a ring array are formed inside the mounting tube. A positioning rod is slidably installed inside each stroke hole. A pressure ring is placed between the ball bearing and the positioning rod. A limit ring is provided on the outer wall of the positioning ring. A second spring, sleeved on the outside of the positioning rod, is placed between the limit ring and the outer wall of the mounting tube. Support blocks arranged in a ring array are sleeved on the outer wall of the aluminum bearing body. A first spring is provided at one end of each support block. A support ring is provided at one end of each first spring. A pressure sleeve with an inner diameter that gradually decreases to one side is provided at one end of the support ring.

[0005] Preferably, a ball bearing is rotatably mounted inside the positioning ring, and the ball bearing rolls and fits against the inner wall of the pressure sleeve.

[0006] Preferably, the ball bearing includes an inner ring and an outer ring, and each of the inner ring and the outer ring has a groove at one end, and balls arranged in a ring array are rolled inside the groove.

[0007] Preferably, the inner ring has a pin groove mounted on the shaft on its inner wall, the outer ring has an insert block at one end, and the pressure ring has insertion holes arranged in a ring array inside, with the insert block slidably inserted into the insertion holes.

[0008] Preferably, the bearing housing has positioning grooves arranged in a ring array inside, and a positioning block that is slidably installed inside the positioning groove is provided at one end of the assembly groove.

[0009] Preferably, one end of the support ring is provided with a sliding rod located inside the spring, and one end of the support block is provided with a sliding cylinder that is sleeved on the outside of the sliding rod and located inside the spring.

[0010] Preferably, one end of the pressure ring is provided with a sealing gasket that fits against the outer ring, and the outer wall of one end of the positioning rod is arc-shaped.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, when installing the ball bearing, the pressure sleeve applies inward pressure, causing the spring to contract. The bearing housing is placed inside the assembly groove, and the ball bearing is placed inside the assembly groove. The bearing housing is limited by the positioning block on the inner wall of the assembly groove through the positioning groove. The insertion block of the outer ring of the ball bearing is inserted into the insertion hole, so that the pressure ring pressing on the outer side of the ball bearing presses and limits the outer ring of the ball bearing. Then the pressure sleeve is relaxed, and the conical surface of the inner wall of the pressure sleeve presses against the positioning rod. The positioning rod presses against the outer wall of the pressure ring, fixing the pressure ring. When disassembling, after the pressure sleeve is pressed inward, the positioning rod slides outward through the elastic support of the spring, contacting the fixing of the pressure ring, realizing convenient disassembly and assembly of the bearing. When installing the ball bearing of the foot pedal shaft end rolling support inside the aluminum bearing body, the installation of the ball and shaft end is time-saving and convenient. Attached Figure Description

[0012] Figure 1 This is a top view of the three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the pressure sleeve of this utility model from the side view; Figure 3 This is a side-view perspective three-dimensional structural diagram of the mounting tube of this utility model; Figure 4 This is a side sectional three-dimensional structural diagram of the mounting pipe of this utility model; Figure 5 This is a partial side sectional three-dimensional structural diagram of the ball bearing and bearing housing of this utility model.

[0013] Reference numerals in the attached drawings: 1. Aluminum bearing body; 2. Mounting tube; 3. Pressure sleeve; 4. Slide cylinder; 5. Slide rod; 6. Support block; 7. Spring 1; 8. Support ring; 9. Ball bearing; 10. Pressure ring; 11. Positioning rod; 12. Inner ring; 13. Pin groove; 14. Insert block; 15. Insertion hole; 16. Bearing seat; 17. Positioning groove; 18. Positioning block; 19. Assembly groove; 20. Limiting ring; 21. Ball; 22. Spring 2; 23. Stroke hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1-5 As shown, the present invention proposes a quick-installation electric vehicle aluminum bearing, including an aluminum bearing body 1, an installation tube 2, a pressure sleeve 3, a ball bearing 9, and a bearing seat 16. The aluminum bearing body 1 has installation tubes 2 at both ends. The installation tube 2 has an assembly groove 19 inside. The assembly groove 19 has a bearing seat 16 inside. The bearing seat 16 has a ball bearing 9 inside. The installation tube 2 has stroke holes 23 arranged in a ring array inside. The stroke holes 23 have a positioning rod 11 slidably installed inside. The ball bearing 9 and the positioning rod 11 are provided with a pressure ring 10. The outer wall of the positioning ring is provided with a limit ring 20. The limit ring 20 and the outer wall of the installation tube 2 are provided with a spring 22 sleeved on the outside of the positioning rod 11. The outer wall of the aluminum bearing body 1 is sleeved with support blocks 6 arranged in a ring array. One end of each support block 6 is provided with a spring 7. One end of each spring 7 is provided with a support ring 8. One end of the support ring 8 is provided with a pressure sleeve 3 whose inner diameter gradually decreases to one side. The positioning ring is rotatably mounted with a ball bearing 21, which rolls and fits against the inner wall of the pressure sleeve 3. The ball bearing 9 includes an inner ring 12 and an outer ring. Both the inner ring 12 and the outer ring have grooves at opposite ends. Balls arranged in a ring array are rolled inside the grooves. The inner wall of the inner ring 12 is provided with a pin groove 13 for shaft mounting, and one end of the outer ring is provided with a plug 14. The pressure ring 10 has a plug hole 15 arranged in a ring array inside, and the plug 14 is slidably inserted into the plug hole 15. The bearing housing 16 has a positioning groove 17 arranged in a ring array inside, and a positioning block 18 that is slidably installed inside the positioning groove 17 is provided at one end of the assembly groove 19. One end of the support ring 8 is provided with a slide rod 5 located inside the spring 7, and one end of the support block 6 is provided with a slide cylinder 4 that is sleeved on the outside of the slide rod 5 and located inside the spring 7. One end of the pressure ring 10 is provided with a sealing gasket that fits against the outer ring, and the outer wall of one end of the positioning rod 11 is arc-shaped; Based on the implementation steps of Example 1: The core structure of the aluminum bearing body 1 is made of aluminum alloy gravity casting. During casting, the assembly slot 19, the annular array stroke hole 23, the positioning block 18 and other assembly structures are precisely reserved. After one-time molding, only key parts such as the mating surface of the positioning rod 11 and the positioning slot 17 of the bearing seat 16 need to be finely machined. The aluminum bearing body 1 has a dense structure, which reduces weight compared with the traditional spliced ​​bearing. At the same time, the integrated molding improves the overall impact resistance and is suitable for the mechanical load of electric vehicles during driving. After the inner ring 12 and outer ring are stamped, the grooves are precision ground to ensure smoothness. They are fitted with annularly distributed balls to form a low-friction rotating pair. The inner wall of the inner ring 12 has a pre-set pin groove 13 for easy and precise fixing to the shaft. The pressure sleeve 3 is made of engineering plastic injection molding. The inner wall is machined into a tapered surface with a gradually decreasing inner diameter, which gradually decreases towards the positioning rod 11. The surface is polished to reduce friction. The support ring 8, slide rod 5, and slide cylinder 4 are all metal parts. The slide rod 5 is sleeved in the slide cylinder 4 to provide stable guidance for the spring 7. All parts are assembled after cleaning and rust prevention treatment. The sealing gasket at one end of the pressure ring 10 is made of wear-resistant rubber to ensure dustproof and waterproof effect. During assembly, press the sleeve 3 inward to compress the spring 7, and slide the slide rod 5 smoothly along the slide cylinder 4 to prevent the spring 7 from tilting. Embed the bearing seat 16 into the assembly groove 19 of the mounting tube 2. The positioning block 18 in the assembly groove 19 precisely engages with the positioning groove 17 of the bearing seat 16 to achieve circumferential positioning of the bearing seat 16. Then, place the ball bearing 9 into the bearing seat 16 so that the insert block 14 of the bearing outer ring is inserted into the insertion hole 15 of the pressure ring 10 to complete the circumferential fixing of the bearing outer ring. At this time, the sealing gasket at one end of the pressure ring 10 is tightly fitted with the bearing outer ring to prevent dust and moisture from entering. After the pressure sleeve 3 is released, the spring 7 releases its elastic force to push the support ring 8 and the pressure sleeve 3 back to their original positions. The inner wall of the tapered surface of the pressure sleeve 3 rolls and fits against the ball 21 on the positioning ring, generating radial extrusion force. The ball 21 transmits the pressure to the positioning rod 11, pushing the positioning rod 11 to slide inward along the stroke hole 23. Its arc-shaped end evenly presses against the outer wall of the pressure ring 10. The positioning rods 11 distributed in a ring array ensure force balance. At the same time, the limiting ring 20 limits the maximum sliding stroke of the positioning rod 11. The spring 22 is in a stretched state, forming a stable axial clamping force, and finally realizing the rapid positioning and fixing of the bearing. The entire installation process does not require bolt tightening and can be completed quickly. During disassembly, press the sleeve 3 inward again to compress the spring 7, causing the inner wall of the conical surface of the sleeve 3 to disengage from the ball 21. The positioning rod 11 loses radial compressive force. At this time, the spring 22 contracts, pulling the limit ring 20 to drive the positioning rod 11 to slide outward along the stroke hole 23, releasing the pressing effect on the pressure ring 10. Then the pressure ring 10 can be directly removed. Then, through the sliding cooperation between the positioning block 18 and the positioning groove 17, the bearing seat 16 and the ball bearing 9 can be pulled out. No additional tools are required throughout the process, and the disassembly efficiency is improved compared with the traditional bolt fixing method. Gravity casting reduces redundant assembly steps. Combined with the elastic transmission design of the pressure sleeve 3, the ball bearing 21, and the positioning rod 11, the bearing can be disassembled and assembled with just a pressing action. This not only meets the needs of rapid batch assembly on the production line, but also facilitates users' later maintenance and replacement, greatly reducing the operation threshold and time cost. The bearing housing 16 achieves circumferential positioning through the positioning block 18 and the positioning groove 17. The ball bearing 9 is fixed to the pressure ring 10 through the insert block 14 and the insertion hole 15. The double positioning structure avoids circumferential displacement of the bearing during operation. The ring array of positioning rods 11 evenly presses the pressure ring 10 to ensure the axial force balance of the bearing. The aluminum alloy gravity casting body has high strength and strong corrosion resistance. Combined with the ball bearing 9 made of bearing steel, it has excellent wear resistance. The sealing gasket at one end of the pressure ring 10 fits tightly against the outer ring of the bearing, effectively preventing dust and rainwater from entering and extending the service life of the bearing. The rolling friction design of the ball 21 and the conical surface of the pressure sleeve 3 reduces wear compared to sliding friction, further improving the durability of the components. The gravity casting integral molding makes the integration of each component high, and the overall structure is compact and does not occupy extra installation space. The aluminum alloy material is lighter than the traditional cast iron bearing seat. Combined with the lightweight design of spring 7, slide rod 5, and slide cylinder 4, it reduces the energy consumption of the electric vehicle. During the pressing process, the guiding cooperation of slide rod 5 and slide cylinder 4 makes the spring extension and contraction smooth, improving the operating feel and structural stability.

[0016] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0017] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-installation electric vehicle aluminum bearing, comprising an aluminum bearing body (1), a mounting tube (2), a pressure sleeve (3), a ball bearing (9), and a bearing housing (16), characterized in that: The aluminum bearing body (1) has mounting tubes (2) at both ends. Each mounting tube (2) has an assembly groove (19) inside. A bearing seat (16) is installed inside the assembly groove (19), and a ball bearing (9) is installed inside the bearing seat (16). The mounting tube (2) has stroke holes (23) arranged in a circular array inside. A positioning rod (11) is slidably installed inside each stroke hole (23). A pressure ring is provided between the ball bearing (9) and the positioning rod (11). (10) A limiting ring (20) is provided on the outer wall of the positioning ring. A spring (22) is provided between the limiting ring (20) and the outer wall of the mounting tube (2) and sleeved on the outside of the positioning rod (11). A support block (6) distributed in a ring array is sleeved on the outer wall of the aluminum bearing body (1). A spring (7) is provided at one end of each support block (6). A support ring (8) is provided at one end of the spring (7). A pressure sleeve (3) with an inner diameter that gradually decreases to one side is provided at one end of the support ring (8).

2. The quick-installation electric vehicle aluminum support according to claim 1, characterized in that: The positioning ring is equipped with a rotatable ball (21), which rolls and fits against the inner wall of the pressure sleeve (3).

3. The quick-installation electric vehicle aluminum support according to claim 1, characterized in that: The ball bearing (9) includes an inner ring (12) and an outer ring. The inner ring (12) and the outer ring are provided with grooves at opposite ends. Balls arranged in a ring array are rolled inside the grooves.

4. The quick-installation electric vehicle aluminum support according to claim 3, characterized in that: The inner ring (12) has a pin groove (13) installed on the inner wall due to the shaft, and the outer ring has a plug (14) at one end. The pressure ring (10) has a plug hole (15) arranged in a ring array inside, and the plug (14) is slidably inserted into the plug hole (15).

5. The quick-installation electric vehicle aluminum support according to claim 1, characterized in that: The bearing housing (16) has a positioning groove (17) arranged in a ring array inside, and a positioning block (18) is provided at one end of the assembly groove (19) and is slidably installed inside the positioning groove (17).

6. The quick-installation electric vehicle aluminum support according to claim 1, characterized in that: The support ring (8) has a slide rod (5) located inside the spring (7) at one end, and the support block (6) has a slide cylinder (4) with one end sleeved on the outside of the slide rod (5) and located inside the spring (7) at one end.

7. The quick-installation electric vehicle aluminum support according to claim 1, characterized in that: One end of the pressure ring (10) is provided with a sealing gasket that fits against the outer ring, and the outer wall of one end of the positioning rod (11) is arc-shaped.

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