Balanced axle housing structure

Abstract

The utility model discloses a balanced axle casing structure, balanced axle casing structure includes detachable connection together's upper casing and lower casing, the upper surface of upper casing is provided with plate spring installation groove, and the front end of upper casing is provided with two upper casing end lightening groove A, and two upper casing end lightening groove A are located respectively left and right sides of plate spring installation groove, and the rear end of upper casing is provided with two upper casing end lightening groove B, and two upper casing end lightening groove B are located respectively left and right sides of plate spring installation groove, and the front end of lower casing is provided with two horse bolt mounting hole A, and two horse bolt mounting hole A are set up respectively with upper casing end lightening groove A opposite, and the rear end of lower casing is provided with two horse bolt mounting hole B, and two horse bolt mounting hole B are set up respectively with upper casing end lightening groove B opposite, under the prerequisite of not sacrificing reliability and function, the structure has been optimized, the weight has been reduced, and the problem of heavy weight has been solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive balance suspension system, and in particular relates to a balance shaft housing structure. Background Technology

[0002] Currently, most heavy-duty commercial vehicle suspension systems employ a balanced suspension system. This system utilizes a balance shaft housing structure, which uses bearings or bushings to position and connect the balance shaft. As a key component in the balanced suspension system, the balance shaft housing structure, its structure, performance, and reliability play a crucial role in the overall system's stability and reliability.

[0003] However, the existing balance shaft housing structure is bulky and heavy, which not only increases production costs but also increases the vehicle's own weight, increasing energy consumption and thus reducing the vehicle's economic performance, failing to meet the requirements of lightweight vehicle design.

[0004] Furthermore, the existing balance shaft housing structure is a one-piece structure, which is inconvenient to install. When damage occurs, the entire structure needs to be replaced, which is costly and increases the user's operating costs. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a balance shaft housing structure that optimizes the structure and reduces the weight without sacrificing reliability and function, thus solving the problem of excessive weight. At the same time, it is easy to install, and when a part of the balance shaft housing structure is damaged, it does not need to be replaced as a whole, thereby reducing the user's operating costs.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A balance shaft housing structure includes an upper housing and a lower housing detachably connected together. The upper housing has a leaf spring mounting groove on its upper surface. The front end of the upper housing has two end weight-reducing grooves A, located on the left and right sides of the leaf spring mounting groove, respectively. The rear end of the upper housing has two end weight-reducing grooves B, located on the left and right sides of the leaf spring mounting groove, respectively. The front end of the lower housing has two U-bolt mounting holes A, respectively opposite to the end weight-reducing grooves A of the upper housing. The rear end of the lower housing has two U-bolt mounting holes B, respectively opposite to the end weight-reducing grooves B of the upper housing.

[0008] Furthermore, a leaf spring stop A is provided on the left side of the leaf spring mounting slot, and a leaf spring stop B is provided on the right side of the leaf spring mounting slot, with the leaf spring stop A and the leaf spring stop B being arranged opposite to each other.

[0009] Furthermore, the leaf spring stop A is provided with a leaf spring stop A weight reduction groove, and the leaf spring stop B is provided with a leaf spring stop B weight reduction groove.

[0010] Furthermore, the upper housing and the lower housing together form a bushing mounting hole, which includes an upper bushing mounting half-hole and a lower bushing mounting half-hole. The upper bushing mounting half-hole is located on the lower surface of the upper housing, and the lower bushing mounting half-hole is located on the upper surface of the lower housing. The wall of the upper bushing mounting half-hole is provided with an upper bushing groove.

[0011] Furthermore, the lower bushing mounting half-hole is provided with a lower bushing groove on its wall, and the lower bushing groove is positioned opposite to the upper bushing groove.

[0012] Furthermore, the lower surface of the lower housing is provided with reinforcing ribs A and B.

[0013] Furthermore, the upper housing and the lower housing together form a bushing mounting hole, which includes an upper bushing mounting half-hole and a lower bushing mounting half-hole. The upper bushing mounting half-hole is located on the lower surface of the upper housing, and the lower bushing mounting half-hole is located on the upper surface of the lower housing.

[0014] Furthermore, the bottom of the leaf spring mounting groove is provided with a leaf spring limiting hole.

[0015] Furthermore, the bottom of the leaf spring mounting groove is also provided with leaf spring mounting groove weight reduction groove A and leaf spring mounting groove weight reduction groove B, which are located on the front and rear sides of the leaf spring limiting hole, respectively.

[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] The balance shaft housing structure comprises a detachably connected upper and lower housing. This modular design facilitates installation, and if either the upper or lower housing is damaged, the entire unit does not need to be replaced, reducing user costs. The upper housing has a leaf spring mounting slot on its upper surface. Two end weight-reducing slots A are located on the left and right sides of the leaf spring mounting slot at the front end of the upper housing, respectively. Two end weight-reducing slots B are located on the left and right sides of the leaf spring mounting slot at the rear end of the upper housing. The lower housing has two U-bolt mounting holes A at its front end, opposite to the end weight-reducing slots A at the upper housing. Two U-bolt mounting holes B are located on its rear end, opposite to the end weight-reducing slots B at the upper housing. This design optimizes the structure and reduces weight without sacrificing reliability and functionality, thus solving the problem of excessive weight. Attached Figure Description

[0018] Figure 1 This is a perspective view of the balance shaft housing structure of this utility model;

[0019] Figure 2 This is another perspective view of the balance shaft housing structure of this utility model;

[0020] Figure 3 yes Figure 1 An enlarged 3D view of the upper and middle shell;

[0021] Figure 4 yes Figure 1 A magnified 3D view of the upper and middle shell from another angle;

[0022] Figure 5 yes Figure 1 An enlarged 3D view of the lower and middle shells;

[0023] Figure 6 yes Figure 1 A magnified 3D view of the lower and middle shell from another angle;

[0024] Figure 7 A perspective view of the balance shaft housing structure (in use) of this utility model;

[0025] Figure 8 This is a partial sectional view of 7;

[0026] In the diagram, 1. Balance shaft bracket; 2. Upper housing; 21. Leaf spring mounting slot; 211. Leaf spring limiting hole; 212. Leaf spring mounting slot weight reduction slot A; 213. Leaf spring mounting slot weight reduction slot B; 22. Leaf spring stop A; 221. Leaf spring stop A weight reduction slot; 23. Leaf spring stop B; 231. Leaf spring stop B weight reduction slot; 24. Upper housing side weight reduction slot A; 25. Upper housing side weight reduction slot B; 26. Upper housing end weight reduction slot A; 27. Upper housing end weight reduction slot B; 28. Upper bushing mounting half hole. 29. Upper housing mounting hole A; 210. Upper housing mounting hole B; 211. Upper bushing groove; 3. Lower housing; 31. Lower bushing mounting half hole; 32. Lower bushing groove; 33. Lower housing mounting hole A; 34. Lower housing mounting hole B; 35. U-bolt mounting hole A; 36. U-bolt mounting hole B; 37. Reinforcing rib A; 38. Reinforcing rib B; 4. U-bolt A; 5. U-bolt B; 6. Leaf spring; 7. Cover; 8. Balance shaft; 9. Longitudinal beam; 10. Crossbeam; 11. Bushing. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Combination Figure 1 as well as Figure 2 As shown, a balance shaft housing structure includes an upper housing 2 and a lower housing 3 that are detachably connected together, with the upper housing 2 and the lower housing 3 together forming a bushing mounting hole.

[0029] Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the bushing mounting holes include an upper bushing mounting half-hole 28 and a lower bushing mounting half-hole 31. The upper bushing mounting half-hole 28 is located on the lower surface of the upper housing 2, and the lower bushing mounting half-hole 31 is located on the upper surface of the lower housing 3.

[0030] Combination Figure 1 as well as Figure 3 As shown in the figure, preferably, the upper surface of the upper housing 2 is provided with a leaf spring mounting groove 21, and the bottom of the leaf spring mounting groove 21 is provided with a leaf spring limiting hole 211, a leaf spring mounting groove weight reduction groove A 212 and a leaf spring mounting groove weight reduction groove B 213. The leaf spring mounting groove weight reduction groove A 212 and the leaf spring mounting groove weight reduction groove B 213 are respectively located on the front and rear sides of the leaf spring limiting hole 211.

[0031] More preferably, a leaf spring stop A 22 is provided on the left side of the leaf spring mounting groove 21, and a leaf spring stop B 23 is provided on the right side of the leaf spring mounting groove 21, with the leaf spring stop A 22 and the leaf spring stop B 23 arranged opposite to each other.

[0032] Preferably, a leaf spring stop A weight reduction groove 221 is provided on leaf spring stop A 22, and a leaf spring stop B weight reduction groove 231 is provided on leaf spring stop B 23, which further reduces the overall weight of the balance shaft housing structure.

[0033] Preferably, a weight-reducing groove A 24 on the side of the upper housing is provided on the left side of the leaf spring stop A 22, and a weight-reducing groove B 25 on the side of the upper housing is provided on the right side of the leaf spring stop B 23.

[0034] Preferably, two upper housing end weight reduction grooves A 26 are provided at the front end of the upper housing 2. The two upper housing end weight reduction grooves A 26 are located on the left and right sides of the leaf spring mounting groove 21, respectively, which further reduces the overall weight of the balance shaft housing structure.

[0035] More preferably, two upper housing end weight reduction grooves B 27 are provided at the rear end of the upper housing 2. The two upper housing end weight reduction grooves B 27 are located on the left and right sides of the leaf spring mounting groove 21, respectively, which further reduces the overall weight of the balance shaft housing structure.

[0036] Combination Figure 1 , Figure 4 , Figure 5 , Figure 7as well as Figure 8 As shown in the figure, preferably, an upper bushing groove 211 is provided on the wall of the hole 28 where the upper bushing is installed.

[0037] A lower bushing groove 32 is provided on the wall of the lower bushing mounting half-hole 31, and the lower bushing groove 32 is arranged opposite to the upper bushing groove 211. In use, a bushing 11 is provided in the bushing mounting hole formed by the upper bushing mounting half-hole 28 and the lower bushing mounting half-hole 31, and the upper bushing groove 211 and the lower bushing groove 32 can limit the movement of the bushing 11.

[0038] Combination Figure 6 As shown, reinforcing ribs A 37 and B 38 are provided on the lower surface of the lower shell 3.

[0039] Combination Figure 5 as well as Figure 6 As shown, two U-bolt mounting holes A 35 are provided at the front end of the lower housing 3, and the two U-bolt mounting holes A 35 are respectively positioned opposite to the weight reduction groove A 26 at the end of the upper housing; two U-bolt mounting holes B 36 are provided at the rear end of the lower housing 3, and the two U-bolt mounting holes B 36 are respectively positioned opposite to the vibration damping groove B 27 at the end of the upper housing.

[0040] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, the upper housing 2 has an upper housing mounting hole A 29 at its front end and an upper housing mounting hole B 210 at its rear end. The lower housing 3 has a lower housing mounting hole A 33 at its front end and a lower housing mounting hole B 34 at its rear end. When the upper housing 2 and the lower housing 3 are assembled together, bolt A is used to connect them through the upper housing mounting hole A 29 and the lower housing mounting hole A 33, and bolt B is used to connect them through the upper housing mounting hole B 210 and the lower housing mounting hole B 34.

[0041] Combination Figure 7 as well as Figure 8As shown, when the balance shaft housing structure of this utility model is used in the balance suspension system of a heavy-duty commercial vehicle, the vehicle frame includes two parallel longitudinal beams 9, which are fixedly connected together by a crossbeam 10. A balance shaft bracket 1 is fixedly mounted on one of the longitudinal beams 9, and a balance shaft 8 is mounted on the balance shaft bracket 1. The balance shaft 8 and the balance shaft bracket 1 are an integral structure. A bushing 11 is fitted onto the balance shaft 8, and the upper housing 2 and lower housing 3 are wrapped around the outer circumference of the bushing 11. The bushing 11 is positioned using the upper bushing groove 211 and the lower bushing groove 32. Bolt A is used to connect the upper housing 2 and the lower housing 3 together through the upper housing mounting hole A 29 and the lower housing mounting hole A 33, and bolt B is used to connect the upper housing 2 and the lower housing 3 together through the upper housing mounting hole B 210 and the lower housing mounting hole B 34. A leaf spring 6 is installed in the leaf spring mounting groove 21, and the leaf spring 6 is limited by the leaf spring limiting hole 211. Install U-bolts A4 and B5 respectively. U-bolt A4 passes through both U-bolt mounting holes A35 and both weight-reducing grooves A26 at the end of the upper housing. U-bolt B5 passes through both U-bolt mounting holes B36 and both weight-reducing grooves B27 at the end of the upper housing. Then install the cover 7 at the ends of the upper housing 2 and the lower housing 3. When installing U-bolts A4 and B5, U-bolts A4 and B5 are not connected to the upper housing 2, which reduces the stress on the upper housing 2 and effectively protects the upper housing 2.

[0042] The balance shaft housing structure of this utility model is installed on another longitudinal beam 9, and the operation is the same as described above, so it will not be repeated here.

[0043] The technical features with serial numbers mentioned in this manual (such as leaf spring mounting slot weight reduction slot A, leaf spring mounting slot weight reduction slot B, leaf spring stop A, leaf spring stop A weight reduction slot, leaf spring stop B, leaf spring stop B weight reduction slot, upper shell side weight reduction slot A, upper shell side weight reduction slot B, upper shell end weight reduction slot A, upper shell end weight reduction slot B, upper shell mounting hole A, upper shell mounting hole B, lower shell mounting hole A, lower shell mounting hole B, U-bolt mounting hole A, U-bolt mounting hole B, reinforcing rib A, reinforcing rib B, U-bolt A, U-bolt B, etc.) are only for distinguishing the technical features and do not represent the positional relationship, installation sequence, or working sequence of the technical features.

[0044] In the description of this specification, it should be understood that the orientation or positional relationship described by terms such as "front end", "rear end", "upper surface", "lower surface", "lower housing", "upper housing", "left side", and "right side" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] While specific embodiments of this utility model have been described above, those skilled in the art should understand that the described embodiments are merely some, not all, embodiments of this utility model. These are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model and without any inventive effort, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A balance shaft housing structure, characterized in that, The device includes an upper shell and a lower shell that are detachably connected together. The upper shell has a leaf spring mounting groove on its upper surface. The front end of the upper shell has two upper shell end weight reduction grooves A, which are located on the left and right sides of the leaf spring mounting groove, respectively. The rear end of the upper shell has two upper shell end weight reduction grooves B, which are located on the left and right sides of the leaf spring mounting groove, respectively. The front end of the lower shell has two U-bolt mounting holes A, which are respectively opposite to the upper shell end weight reduction grooves A. The rear end of the lower shell has two U-bolt mounting holes B, which are respectively opposite to the upper shell end weight reduction grooves B.

2. The balance shaft housing structure as described in claim 1, characterized in that, A leaf spring stop A is provided on the left side of the leaf spring mounting slot, and a leaf spring stop B is provided on the right side of the leaf spring mounting slot. The leaf spring stop A and the leaf spring stop B are arranged opposite to each other.

3. The balance shaft housing structure as described in claim 2, characterized in that, The leaf spring stop A is provided with a leaf spring stop A weight reduction groove, and the leaf spring stop B is provided with a leaf spring stop B weight reduction groove.

4. The balance shaft housing structure as described in claim 1, characterized in that, The upper housing and the lower housing together form a bushing mounting hole, which includes an upper bushing mounting half-hole and a lower bushing mounting half-hole. The upper bushing mounting half-hole is located on the lower surface of the upper housing, and the lower bushing mounting half-hole is located on the upper surface of the lower housing. The wall of the upper bushing mounting half-hole is provided with an upper bushing groove.

5. The balance shaft housing structure as described in claim 4, characterized in that, The lower bushing mounting half hole has a lower bushing groove on its wall, and the lower bushing groove is positioned opposite to the upper bushing groove.

6. The balance shaft housing structure as described in claim 1, characterized in that, The lower surface of the lower shell is provided with reinforcing ribs A and B.

7. The balance shaft housing structure as described in claim 1, characterized in that, The upper housing and the lower housing together form a bushing mounting hole, which includes an upper bushing mounting half-hole and a lower bushing mounting half-hole. The upper bushing mounting half-hole is located on the lower surface of the upper housing, and the lower bushing mounting half-hole is located on the upper surface of the lower housing.

8. The balance shaft housing structure as described in claim 1, characterized in that, The bottom of the leaf spring mounting groove is provided with a leaf spring limiting hole.

9. The balance shaft housing structure as described in claim 8, characterized in that, The bottom of the leaf spring mounting groove is also provided with leaf spring mounting groove A and leaf spring mounting groove B, which are located on the front and rear sides of the leaf spring limiting hole, respectively.

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