Damping structure of hub

Abstract

The utility model discloses a damping structure of a hub. The damping structure is characterized by comprising a mounting frame, an air chamber, a piston rod, a piston sealing pad, a reset spring and a sliding block, an air chamber is fixedly mounted on the mounting frame; a sliding block is slidably connected to the mounting frame. The sliding block is fixedly connected with a piston rod; the end part of the piston rod is fixedly connected with a piston sealing pad; a reset spring is fixedly connected between the piston rod and the air chamber; the air pressure damping device has the advantages that the hub moves up and down relative to the automobile frame through relative displacement between the sliding block and the mounting frame, most displacement of the automobile frame caused by the ground environment is reduced, meanwhile, the main assembly buffers the acting force of the ground on the automobile frame, and the damping effect is achieved. The number of parts prone to fatigue damage is reduced, the situation that the parts need to be frequently overhauled and replaced is reduced, trouble is saved, and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of wheel hub structures, in particular to a shock absorbing structure of a wheel hub. Background Art

[0002] The car wheel hub is the skeleton in the center of the tire. The car tire is installed on the car through the wheel hub. The wheel hub is used to install and support the tire so that the tire can stably support the entire car and enable the car to drive safely.

[0003] In order to reduce the vibration caused by the movement of the car and improve the driving and riding comfort, the current wheel hub shock absorption structure uses springs, disc springs and other components for shock absorption. However, in some special driving environments, such as areas with rugged terrain, springs and disc springs are subjected to long-term stress, which makes these components very easy to be overworked and need to be frequently checked and replaced, which is very troublesome and will also increase the maintenance cost. Therefore, the current wheel hub shock absorption structure has the defect that it needs to frequently replace parts, which makes it troublesome to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is a wheel hub shock absorbing structure capable of reducing the replacement of parts.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows: comprising: a mounting frame, an air chamber, a piston rod, a piston gasket, a return spring and a sliding block; the mounting frame is fixedly connected to the automobile frame; the air chamber is fixedly installed on the mounting frame; the mounting frame is slidably connected to the sliding block, and the wheel hub is rotatably connected to the sliding block; the sliding block is fixedly connected to the piston rod, and the piston rod is slidably installed in the air chamber; the end of the piston rod is fixedly connected to the piston gasket; a return spring is fixedly connected between the piston rod and the air chamber, and the return spring is located in the air chamber.

[0006] A further preferred solution of the utility model is: two groups of main components consisting of the air chamber, the piston rod, the piston seal and the return spring are provided, which are respectively arranged on the upper and lower sides of the sliding block, and also include: a bracket and a pipeline; the side wall of the mounting frame is fixedly connected to the bracket; the two air chambers are fixedly connected and connected with a pipeline, and the pipeline passes through the bracket and is supported by the bracket.

[0007] A further preferred solution of the utility model is: it also includes: a valve; and valves are fixedly connected to the two air chambers.

[0008] A further preferred solution of the utility model is: it also includes: a protective pad; the rear side of the mounting frame is connected with the protective pad.

[0009] A further preferred scheme of the utility model is: it also includes: a mounting plate and a fixing strip; the mounting plate is fixedly connected to the rear side of the mounting frame; the sliding block and the mounting frame are fixedly connected to the fixing strips, the upper and lower ends of the protective pad are respectively fixedly connected to the fixing strips, and the side of the protective pad is slidably connected to the mounting plate.

[0010] A further preferred solution of the utility model is: it also includes: a guide rod; the guide rod is fixedly connected to the mounting frame, and the sliding block is slidably connected to the guide rod.

[0011] A further preferred solution of the utility model is: it also includes: a ball; the sliding block is movably connected with the ball, and the sliding block is in rolling contact with the guide rod through the ball.

[0012] A further preferred solution of the utility model is: it also includes: a folding sleeve; a folding sleeve is fixedly connected between the sliding block and the air chamber, and the folding sleeve is correspondingly covered outside the piston rod.

[0013] Compared with the prior art, the advantages of the present invention are: 1. The present invention uses a sliding block, a mounting frame and a main assembly. Through the relative displacement between the sliding block and the mounting frame, the wheel hub moves up and down relative to the automobile frame, reducing the ground environment that causes most of the displacement of the automobile frame. At the same time, the main assembly buffers the force of the ground acting on the automobile frame to achieve a shock-absorbing effect. Compared with the prior art, the present invention reduces the use of components that are prone to fatigue damage through air pressure shock absorption, and reduces the need for frequent inspection and replacement of components, which saves trouble and reduces maintenance costs.

[0014] 2. The utility model uses two main components, which can improve the effect of the main components by increasing the direction of action of the main components, and uses a pipeline to connect the two air chambers to synchronize the two main components, thereby improving the operational unity of the two main components and further improving the use effect of the main components.

[0015] 3. The utility model uses a protective pad to protect the main assembly to prevent sewage and mud splashed during the driving of the car from entering the mounting frame and affecting the normal operation of the main assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a structural cross-sectional view of the mounting frame, air chamber and sliding block of the utility model;

[0019] Figure 3 This is a cross-sectional view of the connection structure of the fixing strip, the mounting plate and the protective pad of the utility model;

[0020] Figure 4 A sectional view of the connection structure of the guide rod, the folding sleeve and the bracket of the utility model.

[0021] In the figure: 1, wheel hub, 2, mounting frame, 3, air chamber, 301, valve, 4, piston rod, 5, piston seal, 501, return spring, 6, sliding block, 7, pipeline, 8, mounting plate, 9, protective pad, 10, fixing strip, 11, guide rod, 12, ball bearing, 13, folding sleeve, 14, bracket. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0024] This embodiment mainly describes the structure of a shock absorbing structure of a wheel hub, which is specifically as follows:

[0025] A wheel hub shock absorbing structure, see Figure 1 , Figure 2 and Figure 4 , including: a mounting frame 2, a sliding block 6 and a main component; the mounting frame 2 is fixedly mounted on the automobile frame; a sliding block 6 is slidably mounted on the mounting frame 2, and the wheel hub 1 is rotatably connected to the sliding block 6; a main component for shock absorption is installed between the mounting frame 2 and the sliding block 6, and there are two groups of main components, which are respectively arranged on the upper and lower sides of the sliding block 6; the main component includes: an air chamber 3, a piston rod 4, a piston gasket 5 and a return spring 501; the air chamber 3 is fixedly mounted on the mounting frame 2; the piston rod 4 is fixedly mounted on the sliding block 6, and the piston rod 4 is slidably connected in the air chamber 3; a piston gasket 5 is fixedly mounted on the end of the piston rod 4, and the piston gasket 5 blocks the gap between the piston rod 4 and the air chamber 3; a return spring 501 is fixedly mounted between the piston rod 4 and the air chamber 3, and the return spring 501 is located in the air chamber 3.

[0026] See also Figure 1 , Figure 2 and Figure 4, also includes: a bracket 14, a pipe 7 and a valve 301; the bracket 14 is fixedly installed on the left wall of the mounting frame 2; the two air chambers 3 are fixedly connected and communicated with a pipe 7, and the pipe 7 passes through the bracket 14 and is supported by the bracket 14; valves 301 for replenishing gas into the air chambers 3 are fixedly installed on the two air chambers 3.

[0027] When the shock-absorbing structure is used and the vehicle vibrates due to the terrain, the wheel and the hub 1 act on the sliding block 6, causing the sliding block 6 to slide up and down relative to the mounting frame 2, that is, the hub 1 moves up and down relative to the automobile frame, thereby reducing most of the displacement of the automobile frame caused by the ground environment. At the same time, the main component buffers the force, and the shock-absorbing effect is achieved by reducing the force acting on the automobile frame; wherein, during the process of the main component sliding the sliding block 6 relative to the mounting frame 2 up and down, when the sliding block 6 is pushed by an external force and produces an upward displacement relative to the mounting frame 2, the sliding block 6 drives the upper piston rod 4 to move upward, and the gas in the upper air chamber 3 is squeezed and transported to the air chamber 3 of the main component below through the pipe 7, and then pushed out from the lower air chamber 3. The piston rod 4 moves with the sliding block 6. At this time, under the action of air pressure, the air pressure of the upper air chamber 3 presses against the upper piston rod 4, while the air pressure of the lower air chamber 3 pulls the lower piston rod 4. Therefore, the air pressure in the two air chambers 3 can buffer the force transmitted to the mounting frame 2 by the sliding block 6 through the piston rod 4, thereby achieving the effect of reducing the force transmitted by the wheel hub 1 to the automobile frame; the return spring 501 can restore the position of the sliding block 6 when the automobile moves to a flat terrain position due to its characteristic of self-reset after deformation, so that it remains in the middle position of the mounting frame 2, and the gas in the two air chambers 3 returns to the initial state of balance; the valve 301 can be used to regularly replenish gas into the air chamber 3 to maintain the normal air pressure value of the air chamber 3.

[0028] See also Figure 3 , further comprising: a protective pad 9, a mounting plate 8 and a fixing strip 10; the mounting plate 8 is fixedly mounted on both the left and right sides of the rear side of the mounting frame 2; the fixing strips 10 are fixedly mounted on the sliding block 6 and the mounting frame 2, and there are four fixing strips 10, which are respectively arranged on the upper and lower sides of the mounting frame 2 and the upper and lower sides of the sliding block 6; refer to Figure 3 A protective pad 9 is fixedly installed between the fixing bars 10, a protective pad 9 is connected between the fixing bar 10 on the upper side of the mounting frame 2 and the fixing bar 10 on the upper side of the sliding block 6, and a protective pad 9 is connected between the fixing bar 10 on the lower side of the mounting frame 2 and the fixing bar 10 on the lower side of the sliding block 6. The left and right sides of the two protective pads 9 are respectively slidably connected to the mounting plates 8 on both sides. The protective pads 9 are rubber pads and can be folded freely.

[0029] The protective pad 9 can prevent sewage and mud splashed during the driving of the car from entering the mounting frame 2, affecting the normal operation of the main component, and plays a protective function for the main component; and in the process of the sliding block 6 moving up and down, the side of the protective pad 9 slides on the mounting plate 8, adaptively folding and deforming, while not affecting the movement of the sliding block 6, ensuring comprehensive protection of the main component.

[0030] See also Figure 4 , further comprising: a guide rod 11 and a ball 12; the guide rod 11 is fixedly mounted on the mounting frame 2, and the sliding block 6 is slidably mounted on the guide rod 11; the ball 12 is movably mounted on the sliding block 6, and the sliding block 6 is in rolling contact with the guide rod 11 through the ball 12.

[0031] The guiding function of the guide rod 11 makes the movement of the sliding block 6 more stable, prevents the sliding block 6 from slipping off the mounting frame 2, and improves the safety of the shock absorbing structure; the ball 12 makes the guide rod 11 and the sliding block 6 contact smoothly, reducing the wear of the sliding block 6.

[0032] See also Figure 4 , also includes: a folding sleeve 13; a folding sleeve 13 is fixedly installed between the sliding block 6 and the air chamber 3, and the folding sleeve 13 corresponds to the cover sleeve outside the piston rod 4; the folding sleeve 13 can fold and retract with the movement of the piston rod 4, and fully protect the piston rod 4 and the air chamber 3.

[0033] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0034] The above is a detailed introduction to the shock absorbing structure of a wheel hub provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wheel hub shock absorbing structure, characterized in that: include: The invention comprises a mounting frame (2), an air chamber (3), a piston rod (4), a piston gasket (5), a return spring (501) and a sliding block (6); the mounting frame (2) is fixedly connected to a vehicle frame; the air chamber (3) is fixedly mounted on the mounting frame (2); the sliding block (6) is slidably connected to the mounting frame (2), and the wheel hub (1) is rotatably connected to the sliding block (6); the piston rod (4) is fixedly connected to the sliding block (6), and the piston rod (4) is slidably mounted in the air chamber (3); the end of the piston rod (4) is fixedly connected to the piston gasket (5), and the piston gasket (5) blocks the gap between the piston rod (4) and the air chamber (3); a return spring (501) is fixedly connected between the piston rod (4) and the air chamber (3), and the return spring (501) is located in the air chamber (3).

2. A wheel hub shock absorbing structure according to claim 1, characterized in that: The main assembly consisting of the air chamber (3), the piston rod (4), the piston seal (5) and the return spring (501) is provided in two groups, which are respectively arranged on the upper and lower sides of the sliding block (6), and also includes: a bracket (14) and a pipe (7); the side wall of the mounting frame (2) is fixedly connected to the bracket (14); the two air chambers (3) are fixedly connected and communicated with a pipe (7), and the pipe (7) passes through the bracket (14) and is supported by the bracket (14).

3. The shock absorbing structure of a wheel hub according to claim 2, characterized in that: Also includes: Valve (301); both gas chambers (3) are fixedly connected with valves (301) for replenishing gas into the gas chambers (3).

4. The shock absorbing structure of a wheel hub according to claim 3, characterized in that: Also includes: Protective pad (9); A protective pad (9) for protecting the main component is connected to the rear side of the mounting frame (2).

5. The shock absorbing structure of a wheel hub according to claim 4, characterized in that: Also includes: The mounting plate (8) and the fixing strip (10) are fixedly connected to the rear side of the mounting frame (2); the fixing strip (10) is fixedly connected to the sliding block (6) and the mounting frame (2); the upper and lower ends of the protective pad (9) are respectively fixedly connected to the fixing strips (10); the side of the protective pad (9) is slidably connected to the mounting plate (8); the protective pad (9) is a rubber pad and can be folded freely.

6. The shock absorbing structure of a wheel hub according to claim 5, characterized in that: Also includes: The guide rod (11) is fixedly connected to the mounting frame (2), and the sliding block (6) is slidably connected to the guide rod (11).

7. The shock absorbing structure of a wheel hub according to claim 6, characterized in that: Also includes: The sliding block (6) is movably connected with the ball (12), and the sliding block (6) is in rolling contact with the guide rod (11) through the ball (12).

8. The shock absorbing structure of a wheel hub according to claim 7, characterized in that: Also includes: A folding sleeve (13); a folding sleeve (13) is fixedly connected between the sliding block (6) and the air chamber (3), and the folding sleeve (13) is correspondingly covered outside the piston rod (4).

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