Oil pump camshaft structure capable of bearing high-strength load

Abstract

The utility model relates to the technical field of oil pump camshafts, in particular to an oil pump camshaft structure capable of bearing high-strength load, which comprises second connecting seats, a cam body, a limiting block and a second mounting groove. The second mounting grooves are formed in two sides of the cam body; the second mounting groove penetrates through the cam body; the limiting blocks are arranged on the two sides of the second connecting base. The limiting block and the second connecting base are designed to be of an integrated structure. And the longitudinal section size of the limiting block is matched with the longitudinal section size of the second mounting groove. The utility model solves the problem that the maintenance cost is higher after the integrated camshaft is abraded or breaks down.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pump camshafts, in particular to a structure of an oil pump camshaft capable of withstanding high-strength loads. Background Technique

[0002] A camshaft is a mechanical component that is commonly used as a component for driving valves or other devices in internal combustion engines and other machinery. It includes a shaft and several cams. The cams are special wheels fixed on the shaft, and their shapes are designed to push or control the components (such as valves) in contact with them to move as the shaft rotates.

[0003] The camshafts used in oil pumps usually have the following characteristics: wear resistance: the camshafts in oil pumps are designed to be more robust because they must handle environments with insufficient lubrication; high precision: to ensure the accuracy of the cam profile to guarantee the operating efficiency and reliability of the pump; special materials: usually produced using wear-resistant and corrosion-resistant materials to adapt to the harsh working environment in the oil pump and improve the high-strength load capacity of the camshaft.

[0004] Currently, since the camshaft is an integral unit, once a certain part (such as a certain cam) wears or fails, usually the entire camshaft needs to be replaced instead of a single component, which increases the maintenance cost. Therefore, a structure of an oil pump camshaft capable of withstanding high-strength loads is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a structure of an oil pump camshaft capable of withstanding high-strength loads, which has the advantages of low maintenance cost and convenient and fast maintenance, and solves the problem of high maintenance cost after wear or failure of an integral camshaft.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a structure of an oil pump camshaft capable of withstanding high-strength loads, including a second connection seat and a cam body. The second connection seats are respectively and fixedly installed on both sides of the cam body, and further include a limit block and a second installation groove;

[0007] The second installation groove is opened on both sides of the cam body;

[0008] Among them, the second installation groove penetrates through the cam body;

[0009] The limit blocks are arranged on both sides of the second connection seat;

[0010] Among them, the limit block and the second connection seat adopt an integral structure design;

[0011] Among them, the longitudinal cross-sectional dimension of the limit block matches the longitudinal cross-sectional dimension of the second installation groove.

[0012] When using a high-strength load-bearing oil pump camshaft structure in the technical solution, the second connecting seat is inserted into the two sides of the cam body through the second mounting groove, and the second headless screw is screwed into the second screw hole to fix the second connecting seat and the cam body. The first connecting seat is inserted into the opposite side of the two outermost second connecting seats, and the first connecting seat and the second connecting seat are fixedly connected by the first headless screw. When the camshaft is in use and wear or failure occurs, the worn or failed cam body, the first connecting seat or the second connecting seat can be replaced in a targeted manner, thereby saving the cost of maintenance and replacement by replacing only a single structure.

[0013] Preferably, a second screw hole is provided on a side of the outer wall of the cam body which is in the same plane as the outer wall of the second connecting seat.

[0014] Preferably, the second screw hole is communicated with the second mounting groove, and a second headless screw is threadedly mounted on the second screw hole.

[0015] Preferably, the number of the second connection sockets is six, and the first connection sockets are respectively fixedly mounted on the opposite sides of the two outermost second connection sockets among the six second connection sockets.

[0016] Preferably, a connecting screw is provided at one end of the first connecting seat, and the connecting screw and the first connecting seat adopt an integrated structural design. A first mounting groove is provided at the other end of the first connecting seat, and a first screw hole is provided on the upper end surface of the first connecting seat.

[0017] Preferably, the first screw hole is communicated with the first mounting groove, and a first headless screw is installed in the internal thread of the first screw hole.

[0018] Preferably, the size of the first installation groove matches the size of the limiting block.

[0019] Preferably, the outer side of the limit block is provided with reserved holes in a circular array, and the diameters of the reserved holes match the inner diameters of the first screw hole and the second screw hole and the positions thereof correspond.

[0020] Preferably, the first headless screw or the second headless screw passes through the first screw hole or the second screw hole and extends into the reserved hole on the limit block. The tops of the first headless screw and the second headless screw are respectively in the same plane with the outer walls of the first connecting seat and the second connecting seat and are provided with hexagonal grooves.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] The utility model provides a limit block and a second mounting groove, and the second mounting groove is opened on both sides of the cam body, and the second mounting groove is passed through the cam body. The limit blocks are provided on both sides of the second connecting seat, and the limit blocks and the second connecting seat adopt an integrated structural design, and the longitudinal cross-sectional size of the limit block matches the longitudinal cross-sectional size of the second mounting groove. During the specific operation, the second connecting seat is inserted into the two sides of the cam body through the second mounting groove, and the second headless screw is screwed into the second screw hole, so that the second connecting seat is fixedly connected to the cam body, and the first connecting seat is inserted into the opposite side of the two outermost second connecting seats, and the first connecting seat is fixedly connected to the second connecting seat through the first headless screw. When the camshaft is used and wear or failure occurs, the cam body, the first connecting seat or the second connecting seat that is worn or failed can be replaced in a targeted manner, so that the cost of maintenance and replacement is saved by replacing only a single structure, and the effect of low maintenance cost and convenient and quick maintenance is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first connecting seat of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the second connecting seat of the utility model;

[0027] Figure 5 It is a schematic diagram of the cam body structure of the utility model.

[0028] In the figure: 1. connecting screw; 2. first connecting seat; 3. second connecting seat; 4. cam body; 5. first headless screw; 6. second headless screw; 7. first screw hole; 8. first mounting groove; 9. limit block; 10. reserved hole; 11. second screw hole; 12. second mounting groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example

[0031] likeFigure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an embodiment provided by the utility model: a camshaft structure of an oil pump that can withstand high-strength loads, comprising a second connecting seat 3 and a cam body 4, the second connecting seats 3 are fixedly mounted on both sides of the cam body 4, and also comprising a limit block 9 and a second mounting groove 12;

[0032] Specifically,

[0033] The second mounting grooves 12 are provided on both sides of the cam body 4;

[0034] Wherein, the second mounting groove 12 passes through the cam body 4;

[0035] The limit blocks 9 are arranged on both sides of the second connecting seat 3;

[0036] The limiting block 9 and the second connecting seat 3 adopt an integrated structural design;

[0037] The longitudinal cross-sectional dimension of the limiting block 9 matches the longitudinal cross-sectional dimension of the second installation groove 12 .

[0038] By setting the limit block 9 and the second mounting groove 12, and opening the second mounting groove 12 on both sides of the cam body 4, and making the second mounting groove 12 pass through the cam body 4, by setting the limit block 9 on both sides of the second connecting seat 3, and the limit block 9 and the second connecting seat 3 adopt an integrated structure design, and the longitudinal cross-sectional size of the limit block 9 matches the longitudinal cross-sectional size of the second mounting groove 12, when performing specific operations, the second connecting seat 3 is inserted on both sides of the cam body 4 through the second mounting groove 12, and the second headless screw 6 is screwed into the second screw hole 11, so as to fix the second connecting seat 3 with the cam body 4, and the first connecting seat 2 is inserted on the opposite side of the two outermost second connecting seats 3, and the first connecting seat 2 is fixedly connected with the second connecting seat 3 through the first headless screw 5. When the camshaft is used and wear or failure occurs, the cam body 4, the first connecting seat 2 or the second connecting seat 3 that is worn or failed can be replaced in a targeted manner, so that the cost of maintenance and replacement is saved by replacing only a single structure, and the effect of low maintenance cost and convenient and fast maintenance is achieved.

[0039] Furthermore, a second screw hole 11 is formed on a side of the outer wall of the cam body 4 which is in the same plane as the outer wall of the second connecting seat 3 .

[0040] Furthermore, the second screw hole 11 is connected to the second mounting groove 12 , and a second headless screw 6 is threadedly mounted in the second screw hole 11 .

[0041] Furthermore, the number of the second connecting seats 3 is six, and the first connecting seats 2 are respectively fixedly mounted on the two outermost second connecting seats 3 of the six second connecting seats 3 on the opposite sides thereof.

[0042] Furthermore, a connecting screw 1 is provided at one end of the first connecting seat 2, and the connecting screw 1 and the first connecting seat 2 adopt an integrated structural design. A first mounting groove 8 is provided at the other end of the first connecting seat 2, and a first screw hole 7 is provided on the upper end surface of the first connecting seat 2.

[0043] Furthermore, the first screw hole 7 is communicated with the first mounting groove 8 , and a first headless screw 5 is installed in the internal thread of the first screw hole 7 .

[0044] Furthermore, the size of the first installation groove 8 matches the size of the limiting block 9 .

[0045] Furthermore, the outer side of the limiting block 9 is provided with reserved holes 10 in a circular array, and the diameters of the reserved holes 10 match the inner diameters of the first screw hole 7 and the second screw hole 11 and the positions thereof correspond.

[0046] Furthermore, the first headless screw 5 or the second headless screw 6 passes through the first screw hole 7 or the second screw hole 11 and extends into the reserved hole 10 on the limit block 9. The tops of the first headless screw 5 and the second headless screw 6 are respectively in the same plane with the outer walls of the first connecting seat 2 and the second connecting seat 3 and are provided with hexagonal grooves.

[0047] When the utility model is used, the second connecting seat 3 is inserted into the two sides of the cam body 4 through the second mounting groove 12, and the second headless screw 6 is screwed into the second screw hole 11, so as to fix the second connecting seat 3 and the cam body 4, and the first connecting seat 2 is inserted into the opposite side of the two outermost second connecting seats 3, and the first connecting seat 2 and the second connecting seat 3 are fixedly connected by the first headless screw 5. When the camshaft is in use and wear or failure occurs, the cam body 4, the first connecting seat 2 or the second connecting seat 3 that is worn or failed can be replaced in a targeted manner, thereby saving the cost of maintenance and replacement by replacing only a single structure.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A camshaft structure of an oil pump capable of withstanding high loads, comprising a second connecting seat (3) and a cam body (4), wherein the second connecting seats (3) are fixedly mounted on both sides of the cam body (4), characterized in that: Also includes: Second mounting grooves (12) are provided on both sides of the cam body (4); Wherein, the second mounting groove (12) passes through the cam body (4); Limiting blocks (9) are arranged on both sides of the second connecting seat (3); The limiting block (9) and the second connecting seat (3) are designed as an integrated structure; The longitudinal cross-sectional dimension of the limiting block (9) matches the longitudinal cross-sectional dimension of the second installation groove (12).

2. The oil pump camshaft structure capable of bearing high-strength loads according to claim 1, characterized in that: A second screw hole (11) is provided on one side of the outer wall of the cam body (4) which is in the same plane as the outer wall of the second connecting seat (3).

3. The oil pump camshaft structure capable of bearing high-strength loads according to claim 2, characterized in that: The second screw hole (11) is communicated with the second mounting groove (12), and a second headless screw (6) is threadedly mounted in the second screw hole (11).

4. The oil pump camshaft structure capable of bearing high-strength loads according to claim 1, characterized in that: The number of the second connection seats (3) is six, and the two outermost second connection seats (3) among the six second connection seats (3) are respectively fixedly mounted with the first connection seats (2) on opposite sides thereof.

5. The oil pump camshaft structure capable of bearing high-strength loads according to claim 4, characterized in that: A connecting screw (1) is provided at one end of the first connecting seat (2), and the connecting screw (1) and the first connecting seat (2) adopt an integrated structural design. A first mounting groove (8) is provided at the other end of the first connecting seat (2), and a first screw hole (7) is provided on the upper end surface of the first connecting seat (2).

6. The oil pump camshaft structure capable of bearing high-strength loads according to claim 5, characterized in that: The first screw hole (7) is connected to the first installation groove (8), and a first headless screw (5) is installed in the internal thread of the first screw hole (7).

7. The oil pump camshaft structure capable of bearing high-strength loads according to claim 5, characterized in that: The size of the first installation groove (8) matches the size of the limiting block (9).

8. The oil pump camshaft structure capable of bearing high-strength loads according to claim 1, characterized in that: The outer side of the limit block (9) is provided with reserved holes (10) in a circular array, and the diameter of the reserved holes (10) matches the inner diameter of the first screw hole (7) and the second screw hole (11), and the positions thereof correspond.

9. The oil pump camshaft structure capable of bearing high-strength loads according to claim 6, characterized in that: The first headless screw (5) or the second headless screw (6) passes through the first screw hole (7) or the second screw hole (11) and extends into the reserved hole (10) on the limit block (9); the top of the first headless screw (5) and the second headless screw (6) are respectively in the same plane as the outer wall of the first connecting seat (2) and the second connecting seat (3) and are provided with a hexagonal groove.

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