A balance shaft bracket

Abstract

The present invention discloses a balance shaft bracket, which comprises a bracket body. The upper part of the bracket body is provided with a longitudinal beam mounting part, and the lower part is provided with a thrust rod mounting part. In the middle of one side of the bracket body, a hollow bearing hub mounting part is provided in the vertical direction, and a cross beam mounting part is provided on the other side. The balance shaft bracket further comprises a connecting arm. One end of the connecting arm is provided with an end cover with a central hole, and the other end is bent downward to be provided with a mounting seat, and the mounting seat is provided with a mounting hole. The bracket body is provided with bolt mounting holes along the axial center line direction of the bearing hub mounting part, and the thrust rod mounting part is provided with a plurality of threaded holes. The end cover is fixed to the bracket body by bolts, and the other end of the connecting arm is fixed in the threaded holes of the thrust rod mounting part. By arranging the connecting arm, part of the stress suffered by the balance shaft assembly during the working process is at the joint between the bearing hub mounting part and the bearing hub, and the other part of the stress is dispersed to the bottom of the bracket through the connecting arm, thereby improving the stress bearing capacity of the balance shaft assembly and facilitating maintenance.

Description

Technical Field

[0001] The present invention relates to the fields of vehicles and engineering, and particularly relates to a balance shaft bracket. Background Art

[0002] Balance shaft assemblies are widely used in heavy-duty vehicles. Their function is to elastically connect the axle and the vehicle frame, with functions of guiding, buffering, and vibration damping. The balance shaft bracket is the core component of the balance shaft assembly and directly affects the performance of the balance shaft assembly.

[0003] The structure of the existing balance shaft assembly: includes a bracket, a half shaft extending from the bracket. A bearing hub is sleeved on the half shaft. A bushing is provided between the inner wall of the bearing hub and the half shaft. An inner thrust gasket is provided on the half shaft between the bearing hub and the bracket. An end cover is provided outside the bearing hub. An outer thrust plate is provided between the end cover and the bearing hub. The end cover is fixed to the half shaft and the bearing hub by bolts.

[0004] The inventor found during the implementation of the present invention that the current structure of the balance shaft assembly is relatively complex with many connecting parts. Once a failure occurs, it is not easy to disassemble, time-consuming and laborious to repair, increasing the repair cost. At the same time, the force borne by the balance shaft assembly is completely transmitted through the bearing hub to the joint surface between the balance shaft bracket and the bearing hub, resulting in most of the force borne by the balance shaft bracket being concentrated on this joint surface, and the balance shaft bracket is limited in load-bearing capacity and cannot bear a large force. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above deficiencies in the background art and provide a balance shaft bracket that disperses the stress borne, improves the load-bearing capacity, and is easy to disassemble on the premise of ensuring strength.

[0006] For this reason, the technical solution of the present invention is: a balance shaft bracket, including a bracket body. A longitudinal beam installation part is provided on the upper part of the bracket body, and a thrust rod installation part is provided on the lower part. A hollow bearing hub installation part is provided in the middle of one side of the bracket body along the vertical direction, and a cross beam installation part is provided on the other side. It is characterized in that: it further includes a connecting arm. One end of the connecting arm is provided with an end cover with a central hole, and the other end is bent downward to be provided with an installation support, and an installation hole is provided on the installation support.

[0007] The bracket body is provided with bolt installation holes along the axis direction of the bearing hub installation part. A plurality of threaded holes are provided on the thrust rod installation part below the bearing hub installation part. The end cover on the connecting arm is fixed to the bolt installation holes on the bracket body through the middle cavity of the bearing hub installation part by bolts, and the other end of the connecting arm is fixed in the threaded holes of the thrust rod installation part through its installation support.

[0008] Preferably, the bearing hub mounting portion extends from the middle towards the bracket body with an increasingly larger outer diameter, and its outer conical surface forms the first bushing mounting portion. A groove adapted to the outer end of the bearing hub mounting portion is provided at the center inside the end cover, and an elastic lock piece with an outer diameter gradually decreasing and having an outer conical structure is vertically extended along the outer circumference of the groove. The outer end of the bearing hub mounting portion is inserted into the groove of the end cover through the middle cavity of the elastic lock piece, and the outer conical surface of the elastic lock piece forms the second bushing mounting portion. The first bushing mounting portion and the second bushing mounting portion are respectively used for mounting the tapered bushings, and the bushings and the bearing hub are limited by fixing with bolts; the structure with two symmetric outer conical surfaces being higher at both sides and lower in the middle is convenient for limiting the bearing hub and the two bushings. By using two bushings, no lubricating medium is required. Meanwhile, during disassembly, only the connecting arm needs to be removed first to achieve convenient disassembly and assembly.

[0009] Preferably, an arc-shaped reinforcing rib is provided at the bent portion of the connecting arm to increase the strength of the connecting arm.

[0010] Preferably, bosses are provided at the threaded holes on the thrust rod mounting portion and the mounting holes on the mounting seat. The threaded holes and the mounting holes are both provided at the center positions of the bosses, which is used to increase the strength at the threaded holes and the mounting holes.

[0011] Preferably, the connecting arm, the end cover, and the mounting seat are of an integrally formed structure.

[0012] Preferably, the bracket and the bearing hub mounting portion are of an integrally formed structure.

[0013] Beneficial effects: On the premise of ensuring the bearing capacity and reliability, by setting the connecting arm in the present invention, part of the stress received by the balance shaft assembly during the working process is at the joint between the bearing hub mounting portion and the bearing hub, and the other part of the stress is dispersed to the bottom of the bracket through the connecting arm, thereby improving the stress-bearing capacity of the balance shaft assembly; at the same time, for bearing hubs with different thicknesses, gaskets can be added between the threaded holes on the thrust rod mounting portion and the mounting seat for flexible adjustment, increasing the versatility of the balance shaft bracket.

[0014] By setting two outer conical surfaces to mount two bushings, no lubricating medium is required. The axial limit of the leaf spring is better than that of the existing hoop-type rubber bushings, and the bearing capacity is also better. Meanwhile, it is convenient to disassemble, with low maintenance cost and high efficiency;

[0015] The connecting arm, the end cover, the bracket, and the bearing hub mounting portion are all set to be of an integrally formed structure, which is convenient for forming, reduces the number of connecting parts, is convenient for maintenance, can improve the surface quality and overall quality at the same time, and reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present invention.

[0017] Figure 2 is the front sectional view of the present invention.

[0018] Figure 3 is the perspective view of the connecting arm of the present invention.

[0019] Figure 4 is the front view of the connecting arm of the present invention.

[0020] Figure 5 is Figure 4 the left view of.

[0021] Figure 6 is Figure 4 the right view of.

[0022] Figure 7 is the perspective view of the present invention with a bushing installed.

[0023] Figure 8 is the perspective view of the present invention with a bearing hub A installed.

[0024] As shown in the figure: 1. Bracket body; 2. Longitudinal beam installation part; 3. Thrust rod installation part; 4. Bearing hub installation part; 5. Cross beam installation part; 6. Connecting arm; 61. End cover; 62. Installation support; 63. Groove; 64. Elastic lock piece; 65. Arc-shaped reinforcing rib; 7. Bolt; 8. Connecting plate installation part; 9. Reinforcing rib plate; 10. Bushing. Specific embodiments

[0025] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings, but this embodiment should not be construed as a limitation to the present invention.

[0026] The present invention is as Figures 1 to 8 shown:

[0027] A balance shaft bracket includes a bracket body 1. The upper part of the bracket body is provided with a longitudinal beam installation part 2, and the lower part is provided with a thrust rod installation part 3. One side of the bracket body 1 is provided with a hollow bearing hub installation part 4 in the vertical direction in the middle, and the other side is provided with a cross beam installation part 5. A connecting plate installation part 8 is provided below the cross beam installation part, and a reinforcing rib plate 9 is provided between the cross beam installation part and the connecting plate installation part. It further includes a connecting arm 6. One end of the connecting arm 6 is provided with an end cover 61, and the other end is bent downward to be provided with an installation support 62, and the installation support is provided with an installation hole;

[0028] The bracket body 1 is provided with bolt installation holes along the axial line direction of the bearing hub installation part 4, and a plurality of threaded holes are provided on the thrust rod installation part 3 below the bearing hub installation part. The end cover 61 on the connecting arm 6 is fixed in the bolt installation holes on the bracket body through the middle cavity of the bearing hub installation part by a bolt 7, and the other end of the connecting arm is fixed in the threaded holes of the thrust rod installation part 3 through its installation support 62.

[0029] The bearing hub mounting portion 4 extends from the middle towards the bracket body 1 with an outer diameter gradually increasing, and its outer conical surface forms the first bushing mounting portion. A groove 63 adapted to the outer end of the bearing hub mounting portion is provided at the center inside the end cover 61, and an elastic lock piece 64 with an outer diameter gradually decreasing and having an outer conical structure is provided along the vertical direction of the outer circumference of the groove. There is a gap between the elastic lock pieces. The outer end of the bearing hub mounting portion 4 passes through the middle cavity of the elastic lock piece and is inserted into the groove 63 of the end cover. The outer conical surface of the elastic lock piece 64 forms the second bushing mounting portion. The first bushing mounting portion and the second bushing mounting portion are respectively used for mounting the tapered bushing 10, and the bushing and the bearing hub are limited by fixing with bolts.

[0030] An arc-shaped reinforcing rib 65 is provided at the bent portion of the connecting arm 6.

[0031] Bosses are provided at the threaded hole on the thrust rod mounting portion 3 and the mounting hole on the mounting support 62, and the threaded hole and the mounting hole are both provided through the center position of the boss.

[0032] The connecting arm 6, the end cover 61, and the mounting support 62 are of an integrally formed structure.

[0033] The bracket 1 and the bearing hub mounting portion 4 are of an integrally formed structure.

[0034] Matters not described in detail in this specification are well-known techniques in the art.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A balance shaft bracket, comprising a bracket body, wherein a longitudinal beam mounting portion is provided at the upper part of the bracket body, and a thrust rod mounting portion is provided at the lower part. One side of the middle of the bracket body is provided with a hollow bearing hub mounting portion in the vertical direction, and a cross beam mounting portion is provided on the other side. It is characterized in that: It further includes a connecting arm. One end of the connecting arm is provided with an end cover with a central hole, and the other end is bent downward to be provided with a mounting seat, and the mounting seat is provided with a mounting hole; The bracket body is provided with bolt mounting holes along the axis direction of the bearing hub mounting portion. A plurality of threaded holes are provided on the thrust rod mounting portion below the bearing hub mounting portion. The end cover on the connecting arm is fixed in the bolt mounting holes on the bracket body through the middle cavity of the bearing hub mounting portion by bolts. The other end of the connecting arm is fixed in the threaded holes of the thrust rod mounting portion through its mounting seat; The bearing hub mounting portion extends from the middle to the bracket body direction, and its outer diameter gradually increases. Its outer conical surface constitutes a first bushing mounting portion. A groove adapted to the outer end of the bearing hub mounting portion is provided at the center of the inner side of the end cover. An elastic lock piece with an outer diameter gradually decreasing and having an outer conical structure is provided along the vertical direction of the outer circumference of the groove. The outer end of the bearing hub mounting portion passes through the middle cavity of the elastic lock piece and is inserted into the groove of the end cover. The outer conical surface of the elastic lock piece constitutes a second bushing mounting portion. The first bushing mounting portion and the second bushing mounting portion are respectively used for mounting a tapered bushing, and the bushing and the bearing hub are limited by bolts.

2. A balance shaft bracket according to claim 1, It is characterized in that: An arc-shaped reinforcing rib is provided at the bent portion of the connecting arm.

3. A balance shaft bracket according to claim 1 or 2, It is characterized in that: Bosses are provided at the threaded holes on the thrust rod mounting portion and the mounting holes on the mounting seat. The threaded holes and the mounting holes are both provided through the center positions of the bosses.

4. A balance shaft bracket according to claim 3, It is characterized in that: The connecting arm, the end cover and the mounting seat are of an integrally formed structure.

5. A balance shaft bracket according to claim 1 or 2 or 4, It is characterized in that: The bracket and the bearing hub mounting portion are of an integrally formed structure.

6. A balance shaft bracket according to claim 5, It is characterized in that: The bracket and the bearing hub mounting portion are of an integrally formed structure. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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