Axle connecting structure and axle

Abstract

The utility model discloses an axle connecting structure and an axle. The axle connecting structure comprises an axle housing, a shaft head, a brake bottom plate, a plurality of connecting bolts and a plurality of gaskets, a plurality of first through holes are formed in the brake bottom plate, a plurality of second through holes distributed in the circumferential direction of the shaft head are formed in the shaft head, a plurality of threaded holes are formed in the end face of the axle housing, and the first through holes, the second through holes and the threaded holes are sequentially arranged from outside to inside in the axial direction of the shaft head; the multiple connecting bolts penetrate through the multiple first through holes in a one-to-one correspondence mode and transversely penetrate through the multiple second through holes to be connected into the multiple threaded holes in a screwed mode, the multiple gaskets are all arranged on the outer side of the outer side face of the brake bottom plate so as to be clamped between nuts of the connecting bolts and the brake bottom plate, and at least two or more adjacent connecting bolts penetrate through each gasket. The anti-loosening and anti-shock effects of the gasket are enhanced, the brake bottom plate is prevented from being damaged by the connecting bolt, and the connection strength of the axle housing, the axle head and the brake bottom plate is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle-bridge connection structure and a vehicle-bridge. Background Art

[0002] Existing vehicle axles usually use bolts to fix the bridge housing, axle head and brake base plate together. When using bolts for connection, gaskets are usually required to prevent the bolts from loosening and reduce damage to components when the bolts are tightened. However, when connecting the bridge housing, axle head and brake base plate, multiple bolts need to be set around the axle head, and a circular flat gasket is configured for each bolt. Since sufficient spacing needs to be reserved between adjacent bolts to adapt to the flat washers on the two adjacent bolts, the spacing between adjacent bolts is large, and the number of bolts distributed around the axle head is relatively small, which affects the connection strength of the bridge housing, axle head and brake base plate. In addition, the contact area between a single flat gasket and the surface of the component is relatively small, which makes the gasket easy to loosen. Utility Model Content

[0003] In view of the deficiencies of the prior art, the first object of the utility model is to provide an axle connection structure, which increases the arrangement density of bolts connecting the axle housing, the axle head and the brake base plate, and prevents the gasket from loosening.

[0004] The second purpose of the utility model is to provide a vehicle axle.

[0005] In order to achieve the above purpose one, the utility model adopts the following technical solution:

[0006] A vehicle bridge connection structure includes a bridge housing, an axle head, a brake base plate, a plurality of connecting bolts and a plurality of gaskets; a plurality of first through holes are arranged on the brake base plate, a plurality of second through holes arranged along the circumference of the axle head are arranged on the axle head, and a plurality of threaded holes are arranged on the end face of the bridge housing, and the first through holes, the second through holes and the threaded holes are arranged in sequence from the outside to the inside along the axial direction of the axle head; a plurality of connecting bolts pass through the plurality of first through holes one by one and are screwed into the plurality of threaded holes after passing through the plurality of second through holes, a plurality of gaskets are placed on the outside of the outer side surface of the brake base plate to be clamped between the nuts of the connecting bolts and the brake base plate, and each gasket is passed through by at least two adjacent connecting bolts.

[0007] The gasket is arc-shaped, and each gasket is provided with more than two gasket holes for connecting bolts to pass through. Multiple gaskets form a circle around the central axis of the shaft head, and the gasket holes on all gaskets are arranged in a circular array around the central axis of the shaft head.

[0008] It comprises six gaskets, each of which is provided with four gasket holes for four adjacent connecting bolts to pass through respectively.

[0009] The width of the gasket is D, and the diameter of the gasket hole is R, where D is 1.52 to 1.91 times of R.

[0010] The inner edge of the brake base plate is provided with a first flange sleeved on the outside of the shaft head, and the shaft head is provided with a second flange located inside the first flange. The two side surfaces of the second flange are respectively abutted against the end surface of the bridge housing and the inner side surface of the first flange. The first through hole is provided on the first flange, and the second through hole is provided on the second flange.

[0011] The shaft head is provided with a supporting outer edge surface supported on the inner edge surface of the first flange.

[0012] A positioning truncated cone is arranged on the inner side surface of the second flange, and a positioning groove is arranged on the end surface of the bridge housing. The positioning truncated cone is embedded in the positioning groove and forms a positioning mechanism with the positioning groove for radially positioning the shaft head and the bridge housing.

[0013] In order to achieve the above-mentioned second purpose, the utility model adopts the following technical solutions:

[0014] A vehicle axle comprises the above-mentioned vehicle axle connection structure.

[0015] The beneficial effects of the utility model are:

[0016] In the utility model, more than two adjacent connecting bolts pass through a gasket at the same time. After the gasket is compressed by the connecting bolts, the gasket and the brake base plate have a relatively large contact area, thereby increasing the static friction between the gasket and the brake base plate, and enhancing the anti-loosening and anti-vibration effects of the gasket. At the same time, the larger gasket can disperse the stress applied to the brake base plate when the connecting bolts are tightened, preventing the connecting bolts from causing damage to the brake base plate. In addition, since more than two connecting bolts are connected to one gasket at the same time, the spacing between the connecting bolts can be effectively reduced, so that a larger number of connecting bolts can be distributed around the central axis of the shaft head, which is beneficial to enhancing the connection strength of the bridge housing, the shaft head and the brake base plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 for Figure 2 Magnified view at A in the middle;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle gasket. DETAILED DESCRIPTION

[0021] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0022] like Figure 1 , 2 , 3, and 4 show an axle connection structure of the utility model, which includes a bridge housing 10, an axle head 20, a brake base plate 30, a plurality of connecting bolts 40, and a plurality of gaskets 50. The brake base plate 30 is provided with a plurality of first through holes 32, and the axle head 20 is provided with a plurality of second through holes 22 arranged along the circumference of the axle head 20. A plurality of threaded holes 12 are provided on the end surface of the bridge housing 10. The number of the first through holes 32, the second through holes 22, and the threaded holes 12 are all equal and arranged one by one, that is, in the axial direction of the axle head 20, the first through holes 32, the second through holes 22, and the threaded holes 12 are arranged in sequence from outside to inside, and the plurality of threaded holes 12 are arranged on the end surface of the bridge housing 10. The connecting bolts 40 are arranged in a one-to-one correspondence with the multiple first through holes 32, and after the connecting bolts 40 are connected to the first through holes 32 from the outside to the inside, they are then passed through the second through holes 22 corresponding to the first through holes 32, and finally extend into the threaded holes 12 and are screwed in the threaded holes 12. Multiple gaskets 50 are placed on the outside of the outer side of the brake base plate 30. After tightening the connecting bolts 40, the gaskets 50 are clamped using the nuts of the connecting bolts 40 and the brake base plate 30. Each gasket 50 is passed through by at least two or more adjacent connecting bolts 40, that is, each gasket 50 corresponds to at least two or more connecting bolts 40.

[0023] Compared with the existing technical solution of separately configuring a gasket for each connecting bolt, in the utility model, more than two adjacent connecting bolts pass through one gasket at the same time. After the gasket is compressed by the connecting bolts, the gasket and the brake base plate have a relatively large contact area, thereby increasing the static friction between the gasket and the brake base plate, and enhancing the anti-loosening and anti-vibration effects of the gasket. At the same time, the larger gasket can disperse the stress applied to the brake base plate when the connecting bolts are tightened, preventing the connecting bolts from causing damage to the brake base plate. In addition, since more than two connecting bolts are connected to one gasket at the same time, the spacing between the connecting bolts can be effectively reduced, so that a larger number of connecting bolts can be distributed around the central axis of the shaft head, which is beneficial to enhancing the connection strength of the bridge housing, the shaft head and the brake base plate.

[0024] In a preferred embodiment, the gasket 50 is configured to be arc-shaped, and each gasket 50 is provided with more than two gasket holes 51 for connecting bolts to pass through, and the center of the arc of each gasket 50 falls on the central axis of the shaft head 20, so that multiple gaskets 50 form a circle and surround the periphery of the central axis of the shaft head 20, and the gasket holes 51 on all the gaskets 50 are arranged in a circular array around the central axis of the shaft head 20, so that multiple connecting bolts 50 are arranged in a circular array around the central axis of the shaft head 20. In a preferred usage, the utility model may include six gaskets 50, that is, six gaskets 50 are arranged in sequence in the circumferential direction, and each gasket 50 is provided with four gasket holes 51. The four gasket holes 51 on the gasket 50 are for four adjacent connecting bolts to pass through. The outer dimensions of the six gaskets 50 and the positions of the gasket holes 51 are the same. During processing, multiple gaskets 50 can be stacked and the gasket holes 51 can be opened thereon by punching equipment, so as to facilitate the processing of the gaskets 50. In addition, since all the gaskets 50 have the same structure, the gaskets 50 and the connecting bolts 40 are easy to assemble.

[0025] The width of the gasket 50 is D, and the diameter of the gasket hole 51 is R, wherein D is 1.52 to 1.91 times of R to ensure that the gasket 50 has a relatively large contact area with the brake base plate 30. In a preferred embodiment, D is 1.73 times of R.

[0026] The inner edge of the brake base plate 30 is provided with a first flange 31, which is sleeved on the outside of the shaft head 20. The shaft head 20 is provided with a second flange 21, which is located on the inner side of the first flange 31. The two side surfaces of the second flange 21 are respectively abutted against the end surface 11 of the bridge housing 10 and the inner side surface of the first flange 31. The first through hole 32 is provided on the first flange 31, and the second through hole 22 is provided on the second flange 21. In order to position the brake base plate 30 and the shaft head 20 during assembly to improve the coaxiality of the two after assembly, a supporting outer edge surface 23 is provided on the shaft head 20, which is supported on the inner edge surface of the first flange 31. The brake base plate 30 and the shaft head 20 are positioned by the cooperation of the supporting outer edge surface 23 and the inner edge surface of the first flange 31. In addition, a positioning cone 24 is provided on the inner side surface of the second flange 21, and a positioning groove 13 is provided on the end surface of the bridge housing 10. During assembly, the positioning cone 24 is embedded in the positioning groove 13 and forms a positioning mechanism with the positioning groove 13. The positioning mechanism is used to position the shaft head 20 and the bridge housing 10 to improve the coaxiality of the two.

[0027] The axle housing of the utility model includes the above-mentioned axle connection structure, and other structures of the axle housing are the same as those in the prior art, which will not be described in detail here.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vehicle-bridge connection structure, characterized in that: It includes a bridge housing, an axle head, a brake base plate, a plurality of connecting bolts and a plurality of gaskets; a plurality of first through holes are arranged on the brake base plate, a plurality of second through holes arranged along the circumference of the axle head are arranged on the axle head, and a plurality of threaded holes are arranged on the end face of the bridge housing, and the first through holes, the second through holes and the threaded holes are arranged in sequence from outside to inside along the axial direction of the axle head; a plurality of connecting bolts pass through the plurality of first through holes one by one and are screwed into the plurality of threaded holes after passing through the plurality of second through holes, a plurality of gaskets are placed on the outside of the outer side surface of the brake base plate to be clamped between the nuts of the connecting bolts and the brake base plate, and each gasket is passed through by at least two adjacent connecting bolts.

2. The axle connection structure according to claim 1, characterized in that: The gasket is arc-shaped, and each gasket is provided with more than two gasket holes for connecting bolts to pass through. Multiple gaskets form a circle around the central axis of the shaft head, and the gasket holes on all gaskets are arranged in a circular array around the central axis of the shaft head.

3. The axle connection structure according to claim 2, characterized in that: It comprises six gaskets, each of which is provided with four gasket holes for four adjacent connecting bolts to pass through respectively.

4. The axle connection structure according to claim 2, characterized in that: The width of the gasket is D, and the diameter of the gasket hole is R, where D is 1.52 to 1.91 times of R.

5. The axle connection structure according to claim 1, characterized in that: The inner edge of the brake base plate is provided with a first flange sleeved on the outside of the shaft head, and the shaft head is provided with a second flange located inside the first flange. The two side surfaces of the second flange are respectively abutted against the end surface of the bridge housing and the inner side surface of the first flange. The first through hole is provided on the first flange, and the second through hole is provided on the second flange.

6. The axle connection structure according to claim 5, characterized in that: The shaft head is provided with a supporting outer edge surface supported on the inner edge surface of the first flange.

7. The axle connection structure according to claim 5, characterized in that: A positioning truncated cone is arranged on the inner side surface of the second flange, and a positioning groove is arranged on the end surface of the bridge housing. The positioning truncated cone is embedded in the positioning groove and forms a positioning mechanism with the positioning groove for radially positioning the shaft head and the bridge housing.

8. A vehicle axle, characterized in that: The vehicle-axle connection structure comprises the vehicle-axle connection structure as described in any one of claims 1 to 7.

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