Automobile brake camshaft

Abstract

The utility model belongs to the technical field of automobile accessories, and particularly relates to an automobile brake camshaft which comprises a rotating shaft component, an assembly connecting block, a middle shaft piece and a cam component, the rotating shaft component comprises a rotating shaft, a shaft body column, flat grooves and connecting holes, the shaft body column is arranged on the upper portion of the rotating shaft, and the flat grooves are formed in the front side and the rear side of the lower portion of the rotating shaft. Connecting holes are formed in the flat grooves; the assembly connecting block is arranged at the upper end of the rotating shaft; the middle shaft sheet is arranged on the shaft body column; the cam component is arranged on the lower portion of the rotating shaft, a shaft hole of the cam is connected with the rotating shaft, an embedded block embedded in the flat groove is arranged in the shaft hole, after connection, locking is conducted through the connecting bolt, during rotation, the rotating shaft transmits rotating power through the flat groove and the embedded block, the load of the connecting bolt is reduced, and the transmission stability is improved; and breakage caused by overlarge load of the connecting bolt is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to an automobile brake camshaft. Background Art

[0002] Automobile parts are each unit that constitutes an automobile as a whole and a product that serves the automobile. A brake camshaft is an important component in the braking system of a motor vehicle and is usually used to control the operation of a brake.

[0003] When the existing automobile brake camshaft is in use, for the convenience of installation, the cam is connected to the rotating shaft by bolts. However, in this structure during transmission, the force transmitted by the rotating shaft is completely transmitted to the cam through the bolts, resulting in an excessive load on the bolts and making them prone to fracture and deformation. Therefore, this application proposes an automobile brake camshaft. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in the existing automobile brake camshaft, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide an automobile brake camshaft. The shaft hole of the cam is connected to the rotating shaft, and a fitting block that fits with a flat groove is provided inside the shaft hole. After connection, it is locked with a connection bolt. During rotation, the rotating shaft transmits the rotational power through the flat groove and the fitting block, reducing the load on the connection bolt, improving the transmission stability, and avoiding fracture of the connection bolt due to excessive load.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] An automobile brake camshaft, comprising:

[0009] A rotating shaft component, including a rotating shaft, a shaft body column, a flat groove, and a connection hole. The upper part of the rotating shaft is provided with a shaft body column, the front and rear sides of the lower part of the rotating shaft are both provided with flat grooves, and connection holes are opened on the flat grooves;

[0010] An assembled connection block, provided at the upper end of the rotating shaft;

[0011] An intermediate shaft piece, provided on the shaft body column;

[0012] The cam component is arranged at the lower part of the rotating shaft. The cam component includes a cam, a shaft hole, an insert block and a connecting bolt. An insert block fitted with a flat groove is arranged inside the shaft hole formed in the cam for connecting with the rotating shaft, and a connecting bolt for connecting with a connecting hole is arranged on the side of the cam.

[0013] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: a closing component is arranged on the flat groove. The closing component includes a closing piece and a connecting block, and the closing piece is connected with the connecting hole through the connecting block.

[0014] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: when the closing piece is connected with the flat groove, a smooth cylinder is formed.

[0015] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: the connecting holes are evenly distributed on the flat grooves on the front and rear sides.

[0016] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: the lower end of the rotating shaft adopts a stepped shaft.

[0017] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: the axes of the rotating shaft, the shaft body column and the shaft hole coincide.

[0018] As a preferred embodiment of the automotive brake camshaft of the present invention, wherein: the connecting bolt adopts a countersunk head bolt.

[0019] Compared with the prior art: in the present invention, a flat groove is arranged outside the rotating shaft, and a connecting hole is arranged in the flat groove. The shaft hole of the cam is connected with the rotating shaft, and an insert block fitted with the flat groove is arranged inside the shaft hole. After connection, it is locked by a connecting bolt. When rotating, the rotating shaft transmits the rotating power through the flat groove and the insert block, reducing the load on the connecting bolt, improving the transmission stability, and avoiding the fracture of the connecting bolt due to excessive load. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is the axonometric structure schematic diagram of the present invention;

[0022] Figure 2 is the structure schematic diagram of the rotating shaft component of the present invention;

[0023] Figure 3 This is a schematic structural diagram of the cam component of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the closing component of the present utility model.

[0025] In the figure: 100 rotating shaft component, 110 rotating shaft, 120 shaft body column, 130 flat groove, 140 connecting hole, 200 assembling connecting block, 300 intermediate shaft piece, 400 cam component, 410 cam, 420 shaft hole, 430 insert block, 440 connecting bolt, 500 closing component, 510 closing piece, 520 connecting block. Specific embodiments

[0026] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0029] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will further describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0030] The present utility model provides an automotive brake camshaft. The shaft hole of the cam is connected to the rotating shaft. An insert block that fits with the flat groove is arranged inside the shaft hole. After connection, it is locked with a connecting bolt. When rotating, the rotating shaft transmits the rotational power through the flat groove and the insert block, reducing the load on the connecting bolt, improving the transmission stability, and at the same time avoiding the fracture of the connecting bolt due to excessive load. Please refer to Figures 1-4 , including: rotating shaft component 100, assembling connecting block 200, intermediate shaft piece 300 and cam component 400.

[0031] The rotating shaft component 100 includes a rotating shaft 110, a shaft body column 120, flat grooves 130 and connection holes 140. A shaft body column 120 is provided at the upper part of the rotating shaft 110. Flat grooves 130 are provided on both the front and rear sides of the lower part of the rotating shaft 110, and connection holes 140 are opened on the flat grooves 130.

[0032] Among them, the flat grooves 130 are symmetrically distributed on both sides of the rotating shaft 110. An assembled connection block 200 is provided at the upper end of the rotating shaft 110. The intermediate shaft piece 300 is provided on the shaft body column 120.

[0033] The cam component 400 is provided at the lower part of the rotating shaft 110. The cam component 400 includes a cam 410, a shaft hole 420, an inlay block 430 and a connection bolt 440. A shaft hole 420 for connecting with the rotating shaft 110 is opened on the cam 410, and an inlay block 430 fitted with the flat groove 130 is arranged inside. A connection bolt 440 for connecting with the connection hole 140 is arranged on the side of the cam 410.

[0034] Among them, the connection bolt 440 is a countersunk head bolt. The shaft hole 420 is connected with the rotating shaft 110, and the inlay block 430 is fitted with the flat groove 130.

[0035] Since the vacant connection hole 140 is prone to blockage, a closing component 500 is provided on the flat groove 130. The closing component 500 includes a closing piece 510 and a connection block 520. The closing piece 510 is connected with the connection hole 140 through the connection block 520. The connection hole 140 is closed by the closing piece 510 to avoid blockage of the connection hole 140. When the closing piece 510 is connected with the flat groove 130, a smooth cylinder is formed to ensure the external flatness.

[0036] To facilitate the adjustment of the position of the cam component 400, the connection holes 140 are evenly distributed on the flat grooves 130 on the front and rear sides, enabling the cam component 400 to be connected and fixed with the connection holes 140 at any position.

[0037] Since the cam component 400 needs to be sleeved, the lower end of the rotating shaft 110 is a stepped shaft, facilitating the cam component 400 to be sleeved from the thinner end of the stepped shaft.

[0038] To ensure the structural accuracy, the axes of the rotating shaft 110, the shaft body column 120 and the shaft hole 420 coincide.

[0039] During specific use, the cam component 400 is sleeved on the rotating shaft 110 through the shaft hole 420, and the flat groove 130 is fitted and connected with the inlay block 430. After the connection, the connection bolt 440 is connected with the connection hole 140. The rotating shaft 110 transmits the rotational power through the flat groove 130 and the inlay block 430, reducing the load on the connection bolt 440, improving the transmission stability, and avoiding breakage of the connection bolt 440 due to excessive load.

[0040] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automotive brake camshaft, characterized in that, Comprising: A rotating shaft component (100), including a rotating shaft (110), a shaft body column (120), flat grooves (130) and connection holes (140). The shaft body column (120) is arranged at the upper part of the rotating shaft (110). Flat grooves (130) are arranged on both the front and rear sides of the lower part of the rotating shaft (110), and connection holes (140) are opened on the flat grooves (130). An assembled connection block (200), arranged at the upper end of the rotating shaft (110). An intermediate shaft piece (300), arranged on the shaft body column (120). A cam component (400), arranged at the lower part of the rotating shaft (110). The cam component (400) includes a cam (410), a shaft hole (420), an inlay block (430) and a connection bolt (440). An inlay block (430) that fits with the flat groove (130) is arranged inside the shaft hole (420) opened on the cam (410) and connected to the rotating shaft (110). A connection bolt (440) connected to the connection hole (140) is arranged on the side of the cam (410).

2. The automotive brake camshaft according to claim 1, characterized in that, A closing component (500) is arranged on the flat groove (130). The closing component (500) includes a closing piece (510) and a connection block (520). The closing piece (510) is connected to the connection hole (140) through the connection block (520).

3. The automotive brake camshaft according to claim 2, characterized in that, When the closing piece (510) is connected to the flat groove (130), a smooth cylinder is formed.

4. A motor vehicle brake camshaft according to claim 1, characterized in that, The connection holes (140) are evenly distributed on the flat grooves (130) on the front and rear sides.

5. A vehicle brake camshaft according to claim 1, characterized in that, The lower end of the rotating shaft (110) adopts a stepped shaft.

6. The automotive brake camshaft according to claim 1, characterized in that, The axes of the rotating shaft (110), the shaft body column (120) and the shaft hole (420) coincide.

7. The automotive brake camshaft according to claim 1, characterized in that The connection bolt (440) adopts a countersunk head bolt.

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