Hub guide pin cover plate for preventing hub from loosening

Abstract

The utility model discloses a hub guide pin cover plate for preventing the hub from loosening, which comprises a hub, a guide pin is arranged in the hub, the side surface of the hub is fixedly connected with a cover plate, a first fixing mechanism is arranged in the cover plate, and the first fixing mechanism comprises a fixing shaft, a hexagonal block, a first spring and a wedge block. The side surface of the hexagonal block is fixedly connected with a fixing shaft, a groove is formed in the outer surface of the fixing shaft, the bottom inner wall of the groove is fixedly connected with a first spring, the other end of the first spring is fixedly connected with a wedge block, the side surface of the wedge block is slidably connected with the groove, and a second fixing mechanism is arranged in the cover plate. The fixing shaft penetrates through the cover plate and is screwed into the first positioning hole, when the fixing shaft is screwed by a certain distance, the wedge block can be embedded into the cover plate under the action of the first spring, and axial rotation of the fixing shaft is clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hubs, in particular to a wheel hub guide pin cover plate for preventing the wheel hub from loosening. Background Art

[0002] The wheel hub is a metal component whose inner contour supports the tire. When installing the wheel hub, a guide pin is usually inserted into the hub to drive the hub to rotate. Since the hub will generate certain vibrations when it rotates under the action of the rotor, a cover plate is required to stabilize the hub to prevent it from loosening.

[0003] The existing cover plate installation method is generally to fix the cover plate to the center of the wheel hub by bolts. Although the wheel hub can be stabilized, the fixing effect is poor. Long-term rotation of the wheel hub can easily cause the cover plate to fall off or the wheel hub to loosen, which is dangerous. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art, and provides a hub guide pin cover plate to prevent the hub from loosening. The cover plate, the hub and the guide pin can be connected by the first fixing mechanism and the second fixing mechanism, and the stability of the hub during vibration can be improved to prevent the hub from loosening, and the utility model has good practicality. The second fixing bolt penetrates the cover plate and is screwed into the second positioning hole of the hub. When screwed in, the gear rotates forward to push the card block, compressing the second spring until the second fixing bolt is completely screwed in. When the hub vibrates, the second fixing bolt has When the torque rotates in the reverse direction, the block will impact against the outer tooth profile of the gear, so that the gear cannot rotate in the reverse direction, and the second fixing bolt is difficult to loosen; the fixed shaft passes through the cover plate and is screwed into the first positioning hole. When the fixed shaft is screwed in a certain distance, the wedge block will be embedded in the cover plate under the action of the first spring, and the axial rotation of the fixed shaft will be blocked. The first fixing bolt will be used to fix the baffle cover to the side surface of the hexagonal block, and then the rod will push the piston to compress the air in the channel, making the wedge block and the cover plate more tightly engaged, avoiding the loose connection between the fixed shaft and the guide pin caused by the vibration of the wheel hub, and further improving the fixing effect.

[0005] The utility model also provides a wheel hub guide pin cover plate for preventing the wheel hub from loosening, comprising: a wheel hub, a guide pin is arranged inside the wheel hub, a cover plate is fixedly connected to the side surface of the wheel hub, a first fixing mechanism is arranged inside the cover plate, the first fixing mechanism comprises a fixed shaft, a hexagonal block, a first spring and a wedge block, the side surface of the hexagonal block is fixedly connected to the fixed shaft, a groove is arranged on the outer surface of the fixed shaft, the bottom inner wall of the groove is fixedly connected to the first spring, the other end of the first spring is fixedly connected to the wedge block, the side surface of the wedge block is slidably connected to the groove, and a second fixing mechanism is arranged inside the cover plate.

[0006] According to the hub guide pin cover plate for preventing the hub from loosening, a first positioning hole is provided on the side surface of the guide pin, and the outer surface of the fixed shaft is threadedly connected to the first positioning hole.

[0007] According to the hub guide pin cover plate for preventing the wheel hub from loosening, a channel is provided inside the hexagonal block, the channel is communicated with the groove, a blocking cover is provided at one end of the channel away from the groove, an insertion rod is fixedly connected to the side surface of the blocking cover, and a piston is fixedly connected to one end of the insertion rod away from the blocking cover.

[0008] According to the hub guide pin cover plate for preventing the hub from loosening, a first fixing bolt is arranged inside the blocking cover, and the first fixing bolt penetrates the hexagonal block and extends into the inside of the blocking cover.

[0009] According to the hub guide pin cover plate for preventing the wheel hub from loosening, the second fixing mechanism includes a second fixing bolt, a gear and a clamping block, the second fixing bolt passes through the cover plate and extends into the interior of the wheel hub, the outer surface of the second fixing bolt is fixedly connected to the gear, and the side of the clamping block abuts against the gear.

[0010] According to the hub guide pin cover plate for preventing the wheel hub from loosening, a circular hole groove is provided on the side surface of the cover plate, a second spring is fixedly connected to the side inner wall of the circular hole groove, the other end of the second spring is fixedly connected to a clamping block, a rotating shaft is fixedly connected to the side inner wall of the circular hole groove, and the outer surface of the rotating shaft is rotatably connected to the clamping block.

[0011] According to the hub guide pin cover plate for preventing the hub from loosening, a second positioning hole is provided on the side surface of the hub, and an outer surface of the second fixing bolt is threadedly connected to the second positioning hole.

[0012] According to the hub guide pin cover for preventing the hub from loosening, the number of the second fixing mechanisms is four and they are arranged in a circular array.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the overall structure of a hub guide pin cover plate for preventing the hub from loosening according to the utility model;

[0016] Figure 2 This is a schematic diagram of the connection between a cover plate and a first fixing mechanism of a hub guide pin cover plate for preventing the hub from loosening according to the utility model;

[0017] Figure 3 The utility model is a wheel hub guide pin cover plate for preventing the wheel hub from loosening Figure 2 A partial enlarged diagram of the middle part;

[0018] Figure 4 This is a schematic diagram of the connection between a cover plate and a second fixing mechanism of a hub guide pin cover plate for preventing the hub from loosening according to the utility model;

[0019] Figure 5 The utility model is a wheel hub guide pin cover plate for preventing the wheel hub from loosening Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0020] Legend:

[0021] 1. Hub; 2. Guide pin; 3. Cover plate; 4. First positioning hole; 5. Fixed shaft; 6. Hexagonal block; 7. First spring; 8. Wedge block; 9. Channel; 10. Block cover; 11. Insert rod; 12. Piston; 13. Second positioning hole; 14. First fixing bolt; 15. Second fixing bolt; 16. Round hole groove; 17. Gear; 18. Second spring; 19. Rotating shaft; 20. Block. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-5 The utility model discloses a hub guide pin cover plate for preventing a hub from loosening, which comprises: a hub 1, a guide pin 2 is arranged inside the hub 1, a cover plate 3 is fixedly connected to the side surface of the hub 1, a first fixing mechanism is arranged inside the cover plate 3, the first fixing mechanism comprises a fixed shaft 5, a hexagonal block 6, a first spring 7 and a wedge block 8, the side surface of the hexagonal block 6 is fixedly connected to the fixed shaft 5, the outer surface of the fixed shaft 5 is provided with a groove, the bottom inner wall of the groove is fixedly connected to the first spring 7, the other end of the first spring 7 is fixedly connected to the wedge block 8, the side surface of the guide pin 2 is provided with a first positioning hole 4, the outer surface of the fixed shaft 5 is threadedly connected to the first positioning hole 4, when the cover plate 3 needs to be installed, the guide pin 2 is first inserted into the inside of the hub 1, and then the cover plate 3 is attached to the other side of the hub 1, and then the fixed shaft 5 passes through the cover plate 3 and is screwed into the first positioning hole 4, when the fixed shaft 5 is screwed for a certain distance, the wedge block 8 will be embedded in the cover plate 3 under the action of the first spring 7, and the axial rotation of the fixed shaft 5 is blocked.

[0024] A channel 9 is provided inside the hexagonal block 6, and the channel 9 is communicated with the groove. A baffle 10 is provided at the end of the channel 9 away from the groove. A plug rod 11 is fixedly connected to the side surface of the baffle cover 10, and a piston 12 is fixedly connected to the end of the plug rod 11 away from the baffle cover 10. A first fixing bolt 14 is provided inside the baffle cover 10, and the first fixing bolt 14 penetrates the hexagonal block 6 and extends into the baffle cover 10. The baffle cover 10 is fixed to the side surface of the hexagonal block 6 by the first fixing bolt 14, and then the plug rod 11 will push the piston 12 to compress the air in the channel 9, so that the wedge block 8 and the cover plate 3 are more tightly engaged, thereby preventing the vibration of the wheel hub 1 from causing the connection between the fixed shaft 5 and the guide pin 2 to loosen, thereby improving the fixing effect.

[0025] The side surface of the wedge block 8 is slidably connected to the groove, and a second fixing mechanism is arranged inside the cover plate 3. The number of the second fixing mechanisms is four and they are arranged in a circular array. The second fixing mechanism includes a second fixing bolt 15, a gear 17 and a clamping block 20. The second fixing bolt 15 penetrates the cover plate 3 and extends into the interior of the wheel hub 1. The outer surface of the second fixing bolt 15 is fixedly connected to the gear 17. The side edge of the clamping block 20 abuts against the gear 17. A circular hole groove 16 is arranged on the side surface of the cover plate 3. A second spring 18 is fixedly connected to the side inner wall of the circular hole groove 16. The other end of the second spring 18 is fixedly connected to the clamping block 20. A rotating shaft 19 is fixedly connected to the side inner wall of the circular hole groove 16. The outer surface of the rotating shaft 19 is connected to the clamping block 2 0 rotational connection, a second positioning hole 13 is provided on the side surface of the wheel hub 1, and the outer surface of the second fixing bolt 15 is threadedly connected with the second positioning hole 13. Before the first fixing mechanism is connected, the cover plate 3 is first fixed on the wheel hub 1, and the second fixing bolt 15 passes through the cover plate 3 and is screwed into the second positioning hole 13 of the wheel hub 1. When screwed together, the gear 17 rotates forward to push the block 20, compressing the second spring 18 until the second fixing bolt 15 is completely screwed together. When the wheel hub 1 vibrates, the second fixing bolt 15 has a torque for reverse rotation, and the block 20 will resist the outer tooth profile of the gear 17, so that the gear 17 cannot rotate in the reverse direction, and then the second fixing bolt 15 is difficult to loosen, thereby improving the stability of the wheel hub 1.

[0026] Working principle: When installing the cover plate 3, first insert the guide pin 2 into the wheel hub 1, then fit the cover plate 3 to the other side of the wheel hub 1, and pass the second fixing bolt 15 through the cover plate 3 and screw it into the second positioning hole 13 of the wheel hub 1. When screwing in, the gear 17 rotates forward to push the block 20, compressing the second spring 18 until the second fixing bolt 15 is completely screwed in. When the wheel hub 1 vibrates, the second fixing bolt 15 has a torque for reverse rotation, and the block 20 will abut against the outer tooth profile of the gear 17, so that the gear 17 cannot rotate in the reverse direction, and then the second fixing bolt 15 It is difficult to loosen, which improves the stability of the wheel hub 1. The fixed shaft 5 then passes through the cover plate 3 and is screwed into the first positioning hole 4. When the fixed shaft 5 is screwed for a certain distance, the wedge block 8 will be embedded in the cover plate 3 under the action of the first spring 7, and the axial rotation of the fixed shaft 5 will be blocked. Then the blocking cover 10 is fixed to the side surface of the hexagonal block 6 by the first fixing bolt 14, and then the insertion rod 11 will push the piston 12 to compress the air in the channel 9, so that the wedge block 8 and the cover plate 3 are more tightly engaged, avoiding the vibration of the wheel hub 1 causing the connection between the fixed shaft 5 and the guide pin 2 to loosen, further improving the fixing effect.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A hub guide pin cover plate for preventing a hub from loosening, characterized in that: include: A wheel hub (1), wherein a guide pin (2) is arranged inside the wheel hub (1), a cover plate (3) is fixedly connected to the side surface of the wheel hub (1), a first fixing mechanism is arranged inside the cover plate (3), the first fixing mechanism comprises a fixed shaft (5), a hexagonal block (6), a first spring (7) and a wedge block (8), the side surface of the hexagonal block (6) is fixedly connected to the fixed shaft (5), a groove is arranged on the outer surface of the fixed shaft (5), the bottom inner wall of the groove is fixedly connected to the first spring (7), the other end of the first spring (7) is fixedly connected to the wedge block (8), the side surface of the wedge block (8) is slidably connected to the groove, and a second fixing mechanism is arranged inside the cover plate (3).

2. A hub guide pin cover plate for preventing a hub from loosening according to claim 1, characterized in that: The side surface of the guide pin (2) is provided with a first positioning hole (4), and the outer surface of the fixed shaft (5) is threadedly connected to the first positioning hole (4).

3. A hub guide pin cover plate for preventing a hub from loosening according to claim 1, characterized in that: A channel (9) is provided inside the hexagonal block (6), the channel (9) being in communication with the groove, a stop cover (10) being provided at one end of the channel (9) away from the groove, a plug rod (11) being fixedly connected to the side surface of the plug rod (11), and a piston (12) being fixedly connected to one end of the plug rod (11) away from the stop cover (10).

4. A hub guide pin cover plate for preventing a hub from loosening according to claim 3, characterized in that: A first fixing bolt (14) is arranged inside the blocking cover (10), and the first fixing bolt (14) passes through the hexagonal block (6) and extends into the inside of the blocking cover (10).

5. A hub guide pin cover plate for preventing a hub from loosening according to claim 1, characterized in that: The second fixing mechanism comprises a second fixing bolt (15), a gear (17) and a clamping block (20); the second fixing bolt (15) is arranged to pass through the cover plate (3) and extend into the interior of the wheel hub (1); the outer surface of the second fixing bolt (15) is fixedly connected to the gear (17); and the side edge of the clamping block (20) abuts against the gear (17).

6. A hub guide pin cover plate for preventing a hub from loosening according to claim 5, characterized in that: A circular hole groove (16) is provided on the side surface of the cover plate (3); a second spring (18) is fixedly connected to the inner side wall of the circular hole groove (16); the other end of the second spring (18) is fixedly connected to a clamping block (20); a rotating shaft (19) is fixedly connected to the inner side wall of the circular hole groove (16); and the outer surface of the rotating shaft (19) is rotatably connected to the clamping block (20).

7. A hub guide pin cover plate for preventing a hub from loosening according to claim 5, characterized in that: A second positioning hole (13) is provided on the side surface of the wheel hub (1), and the outer surface of the second fixing bolt (15) is threadedly connected to the second positioning hole (13).

8. A hub guide pin cover plate for preventing a hub from loosening according to claim 5, characterized in that: The number of the second fixing mechanisms is four and they are arranged in a circular array.

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