Wear-resistant camshaft assembly with lubricating oil duct

Abstract

The utility model belongs to the technical field of cam shafts, and particularly relates to a wear-resistant cam shaft assembly with a lubricating oil channel, which is characterized in that an insertion block at one end of a first cam shaft is inserted into an insertion opening of a second cam shaft, a bolt is placed into a mounting hole, and the bolt is screwed to penetrate through the second cam shaft and is screwed into a fixing hole in the insertion block; at the moment, one end of the bolt is located in the mounting hole and cannot protrude out of the mounting hole, so that the first cam shaft and the second cam shaft are fixedly connected together, an integral matching structure of the cam shaft, the insertion block and the insertion opening is formed, the mounting and dismounting processes of the cam shaft are simplified, and the maintenance efficiency is improved; the first cam shaft and the second cam shaft can be independently replaced, the situation that the whole cam shaft needs to be replaced is avoided, the maintenance cost of the cam shafts is reduced, the cams can be lubricated through the lubricating mechanisms arranged on the first cam shaft and the second cam shaft, abrasion of the surfaces of the cams is effectively reduced, and the service life of the cam shafts is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to camshaft technical field especially relates to a wear -resisting camshaft assembly with lubricating oil channel. BACKGROUND

[0002] Camshaft is the important part in engine, its function is through the rotation of cam control valve's open and close. And camshaft is generally integral forming in the processing process, so when the cam on the camshaft appears damage in the use process, need operating personnel to disassemble the integral camshaft and change, this kind of operation maintenance cost is higher, and when lubricating the cam, oil is easy to lose in large quantities and cause waste. SUMMARY

[0003] The utility model discloses a wear -resisting camshaft assembly with lubricating oil channel to solve the problem in the background art.

[0004] Therefore, the utility model provides a wear -resisting camshaft assembly with lubricating oil channel, first camshaft, first camshaft one end surface fixedly connected with the plug -in block,

[0005] Second camshaft, the second camshaft one end surface is set with the spout, and the plug -in block is matched with the spout, and the second camshaft one end top surface is set with the installation hole, and the inboard surface of the installation hole is connected with the bolt, and the one end of the bolt extends into the fixed hole set on the top surface of the plug -in block through the second camshaft,

[0006] The connecting end, the first camshaft and the second camshaft are fixedly provided with the connecting end away from each other at one end,

[0007] Cam, a plurality of cams are fixedly connected on the first camshaft and the second camshaft,

[0008] Lubricating mechanism, the first camshaft and the second camshaft are provided with the lubricating mechanism.

[0009] In the above technical scheme, further, the lubricating mechanism includes:

[0010] Oil inlet channel, the side wall of the two connecting ends is set with the oil inlet channel,

[0011] Oil guide channel, the first camshaft and the second camshaft are set with the oil guide channel communicated with the oil inlet channel,

[0012] Mounting groove, the one end of the cam is set with the mounting groove,

[0013] Spring, the spring is fixedly connected in the mounting groove,

[0014] Sliding block, the sliding block is fixedly connected to the side end of the spring,

[0015] A connecting rod is fixedly connected to the other end of the sliding block;

[0016] A guide bead is fixedly connected to the other end of the connecting rod;

[0017] An oil outlet hole is formed in the guide bead;

[0018] An oil delivery channel is formed in the cam.

[0019] In the above technical solution, further, the installation groove is not communicated with the oil guide channel, the sliding block is slidingly connected in the installation groove, and the two are in close connection, and the guide bead can be slidingly connected in the installation groove.

[0020] In the above technical solution, further, one end of the oil delivery channel is communicated with the oil guide channel, and the other end is communicated with the installation groove, and the connection positions of the two are aligned with the sliding block.

[0021] In the above technical solution, further, a protective plug is installed on the oil inlet of the oil inlet channel.

[0022] In the above technical solution, further, it also includes:

[0023] A limiting groove is formed in the side wall of one end of the first cam shaft and the second cam shaft which are close to each other;

[0024] Two sets of ring covers are installed on the limiting groove;

[0025] A set of connecting plugs is fixedly connected to one end of the outer arc surface of the ring cover;

[0026] A set of limiting plates is fixedly installed on the other end of the outer arc surface of the ring cover, and the connecting plugs and the limiting plates are installed at the same position.

[0027] In the above technical solution, further, a deformation groove is formed in the middle of the outer side of the connecting plug, two sets of conical protrusions are symmetrically installed on the outer side of the connecting plug, and a plug hole is formed in the limiting plate corresponding to the position of the connecting plug.

[0028] In the above technical solution, further, the conical protrusion is integrally formed with the connecting plug.

[0029] The beneficial effects of the present application are as follows:

[0030] 1. The lubricating mechanism arranged on the first cam shaft and the second cam shaft can lubricate the cam, effectively reducing the wear of the surface of the cam and prolonging the service life of the cam shaft.

[0031] 2. The matching structure of the plug and the socket simplifies the installation and disassembly process of the camshaft, improves the maintenance efficiency, can replace the first camshaft and the second camshaft individually, avoids the need to replace the whole camshaft, and reduces the cost during maintenance of the camshaft.

[0032] 3. The conical protrusion is integrally formed with the connecting plugboard, has high structural strength, and has long service life. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of the utility model;

[0034] Figure 2 is an exploded view of the utility model;

[0035] Figure 3 is a structural schematic diagram of the connecting plugboard of the utility model;

[0036] Figure 4 is a structural schematic diagram of the lubricating mechanism of the utility model;

[0037] Figure 5 is a partial enlarged view of A in the utility model; Figure 4

[0038] The marks in the figure are as follows: 1-first camshaft, 2-plug, 3-second camshaft, 4-socket, 5-mounting hole, 6-bolt, 7-fixing hole, 8-connecting end, 9-cam, 10-oil inlet channel, 11-oil guide channel, 12-mounting groove, 13-spring, 14-sliding block, 15-connecting rod, 16-flow guide bead, 17-oil outlet hole, 18-oil delivery channel, 19-protection plug, 20-limiting groove, 21-ring cover, 22-connecting plugboard, 23-limiting plate, 24-deformation groove, 25-conical protrusion. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the application will be clearly described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the application.

[0040] Embodiment 1:

[0041] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel, which comprises:

[0042] The first camshaft 1 is fixedly connected with the plug 2 at one end surface.

[0043] ​The second camshaft 3 is provided with a socket 4 at one end surface, the plug 2 is matched with the socket 4, the second camshaft 3 is provided with a mounting hole 5 at one end top surface, the mounting hole 5 is connected with a bolt 6 at the inner side surface, one end of the bolt 6 extends into a fixing hole 7 provided at the top surface of the plug 2 through the second camshaft 3;

[0044] The connecting end 8 is fixedly arranged at one end of the first camshaft 1 and the second camshaft 3 away from each other;

[0045] The cam 9 is fixedly connected with a plurality of cams 9 on the first camshaft 1 and the second camshaft 3;

[0046] The lubricating mechanism is arranged on the first camshaft 1 and the second camshaft 3.

[0047] It can be seen from the embodiment that when the camshaft is used, the plug 2 at one end of the first camshaft 1 is inserted into the socket 4 of the second camshaft 3, then the bolt 6 is placed into the mounting hole 5, and the bolt 6 is screwed into the fixing hole 7 on the plug 2 through the second camshaft 3, at this time, one end of the bolt 6 is in the mounting hole 5 and does not protrude from the mounting hole 5, so that the first camshaft 1 and the second camshaft 3 are fixedly connected together to form an integral camshaft, the matching structure of the plug 2 and the socket 4 simplifies the installation and disassembly process of the camshaft, improves the maintenance efficiency, and the first camshaft 1 and the second camshaft 3 can be replaced separately, avoiding the need to replace the entire camshaft, reducing the cost of camshaft maintenance, and the lubricating mechanism arranged on the first camshaft 1 and the second camshaft 3 can lubricate the cam 9, effectively reducing the wear of the surface of the cam 9, and prolonging the service life of the camshaft.

[0048] Embodiment 2:

[0049] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel, in addition to the technical solutions of the above-mentioned embodiments, further comprising the following technical features.

[0050] The lubricating mechanism comprises:

[0051] The oil inlet channel 10 is arranged on the side wall of the two connecting ends 8;

[0052] The oil guide channel 11 is arranged in the first camshaft 1 and the second camshaft 3 and communicates with the oil inlet channel 10;

[0053] The mounting groove 12 is arranged at one end of the cam 9;

[0054] The spring 13 is fixedly connected in the mounting groove 12;

[0055] The sliding block 14 is fixedly connected to the side end of the spring 13;

[0056] A connecting rod 15 is fixedly connected to the other end of the sliding block 14.

[0057] A flow guide bead 16 is fixedly connected to the other end of the connecting rod 15.

[0058] An oil outlet hole 17 is formed in the flow guide bead 16.

[0059] An oil delivery channel 18 is formed in the cam 9.

[0060] As can be seen from the embodiment, the two connecting heads 8 are integrally formed with the first camshaft 1 and the second camshaft 3, respectively, the side walls of the two connecting heads 8 are provided with oil inlet channels 10 for inputting lubricating oil to the lubricating mechanism, the oil guide channels 11 are formed in the first camshaft 1 and the second camshaft 3, respectively, and are communicated with the oil inlet channels 10 for guiding the lubricating oil to the cam 9, the cam 9 is provided with an installation groove 12 at one end, the spring 13 is fixedly connected in the installation groove 12 for providing elastic force, the sliding block 14 is fixedly connected to the side end of the spring 13 and can slide in the installation groove 12, the connecting rod 15 is fixedly connected to the other end of the sliding block 14 for connecting the flow guide bead 16, when the cam 9 contacts the valve during operation, the valve will extrude the flow guide bead 16, the flow guide bead 16 drives the sliding block 14 to extrude the spring 13 into the installation groove 12, the sliding block 14 moves downward to expose the oil delivery channel 18, the lubricating oil in the oil guide channel 11 can enter the installation groove 12 from the oil delivery channel 18 and then overflow from the oil outlet hole 17 to lubricate the cam 9, which effectively reduces the wear of the surface of the cam 9 and prolongs the service life of the camshaft.

[0061] Embodiment 3

[0062] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel.

[0063] The installation groove 12 is not communicated with the oil guide channel 11, the sliding block 14 is slidingly connected in the installation groove 12, and the two belong to tight connection, and the flow guide bead 16 can be slidingly connected in the installation groove 12.

[0064] As can be seen from the embodiment, the installation groove 12 is not communicated with the oil guide channel 11, the sliding block 14 is slidingly connected in the installation groove 12, and the two belong to tight connection, which can prevent the lubricating oil from overflowing from the joint gap between the two, and the flow guide bead 16 can be slidingly connected in the installation groove 12.

[0065] Embodiment 4

[0066] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel.

[0067] The oil delivery channel 18 is in communication with the oil guide channel 11 at one end and the installation groove 12 at the other end, and the connection position of the two is aligned with the sliding block 14.

[0068] As can be seen from the embodiment, the oil delivery channel 18 is in communication with the oil guide channel 11 at one end and the installation groove 12 at the other end, and the connection position of the two is aligned with the sliding block 14. In the state that the flow guide bead 16 is not pressed and the spring 13 is not compressed, the sliding block 14 will block the oil delivery channel 18, so that the lubricating oil in the oil guide channel 11 cannot flow into the installation groove 12 from the oil delivery channel 18. When the flow guide bead 16 is pressed, the spring 13 will be compressed, the sliding block 14 will move downward to expose the oil delivery channel 18, and the lubricating oil will enter the installation groove 12 and then overflow from the oil outlet hole 17, thereby lubricating the surface of the cam 9 and avoiding waste of lubricating oil.

[0069] Embodiment 5:

[0070] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0071] The oil inlet of the oil inlet channel 10 is provided with a protective plug 19.

[0072] As can be seen from the embodiment, the protective plug 19 can be threadedly connected with the oil inlet channel 10, and is used for preventing dust and impurities from entering the oil inlet channel 10.

[0073] Embodiment 6:

[0074] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel, which comprises the technical solutions of the above-mentioned embodiments and has the following technical features.

[0075] Further comprising:

[0076] The side wall of one end of the first camshaft 1 and the second camshaft 3 close to each other is provided with a limiting groove 20;

[0077] The limiting groove 20 is provided with two groups of ring covers 21.

[0078] The outer arc surface of the ring cover 21 is fixedly connected with a group of connecting plugs 22 at one end.

[0079] The outer arc surface of the ring cover 21 is fixedly provided with a group of limiting plates 23 at the other end, and the connecting plugs 22 and the limiting plates 23 are installed at the same positions.

[0080] The embodiment can be seen that the limiting groove 20 is arranged, and the two groups of ring covers 21 are arranged in the limiting groove 20, which prevents the movement and improves the stability of the structure. The two groups of ring covers 21 are used in opposite directions, and when the connecting plug plate 22 and the limiting plate 23 are located at the same position, the connecting plug plate 22 can be inserted into the corresponding limiting plate 23 to limit the two groups of ring covers 21 after buckling, which further improves the stability of the connection of the two groups of ring covers 21. After the first camshaft 1 and the second camshaft 3 are fixedly connected through the bolt 6, the ring cover 21 can shield the bolt 6, and the loosening and falling of the bolt 6 due to vibration can be avoided.

[0081] Embodiment 7

[0082] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel.

[0083] The connecting plug plate 22 is provided with a deformation groove 24 in the middle of the outer side, and the outer side of the connecting plug plate 22 is symmetrically provided with two groups of tapered protrusions 25. The limiting plate 23 is provided with a plug hole corresponding to the position of the connecting plug plate 22.

[0084] The embodiment can be seen that the connecting plug plate 22 is provided with a deformation groove 24 in the middle of the outer side, and the outer side of the connecting plug plate 22 is symmetrically provided with two groups of tapered protrusions 25. The limiting plate 23 is provided with a plug hole corresponding to the position of the connecting plug plate 22. The connecting plug plate 22 is an elastic member, and the tapered protrusions 25 can be spread after being inserted into the plug hole of the limiting plate 23 to limit the position of the connecting plug plate 22. The deformation groove 24 provided on the outer side of the connecting plug plate 22 can ensure that the tapered protrusions 25 are smoothly inserted into the plug hole. The two groups of ring covers 21 are buckled to shield the bolt 6, which can avoid the loosening and falling of the bolt 6 due to vibration, and improve the stability of the connection of the first camshaft 1 and the second camshaft 3.

[0085] Embodiment 8

[0086] The embodiment provides a wear-resistant camshaft assembly with a lubricating oil channel.

[0087] The tapered protrusions 25 are integrally formed with the connecting plug plate 22.

[0088] The embodiment can be seen that the tapered protrusions 25 are integrally formed with the connecting plug plate 22, which has high structural strength and long service life.

[0089] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A wear resistant camshaft assembly having a lubricating oil gallery, characterized by, Include: The first camshaft (1), one end surface fixedly connected with the plug (2); Second camshaft (3), one end surface of the second camshaft (3) is provided with the socket (4), the plug (2) is matched with the socket (4), the top surface of the second camshaft (3) is provided with the mounting hole (5), the inside surface of the mounting hole (5) is connected with the bolt (6), the one end of the bolt (6) extends into the fixed hole (7) provided in the top surface of the plug (2) through the second camshaft (3); The connecting end (8) is fixedly arranged on the one end of the first camshaft (1) and the second camshaft (3) away from each other; Cam (9), a plurality of cams (9) are fixedly connected on the first camshaft (1) and the second camshaft (3); Lubricating mechanism, the first camshaft (1) and the second camshaft (3) are provided with lubricating mechanism.

2. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 1, wherein, The lubricating mechanism comprises: Oil inlet channel (10), the sidewall of the two connecting end (8) is provided with oil inlet channel (10); Oil guide channel (11), the first camshaft (1) and the second camshaft (3) are provided with oil guide channel (11) communicated with the oil inlet channel (10); Mounting groove (12), the one end of the cam (9) is provided with mounting groove (12); Spring (13), the mounting groove (12) is fixedly connected with spring (13); Sliding block (14), the side end of the spring (13) is fixedly connected with sliding block (14); Connecting rod (15), the other end of the sliding block (14) is fixedly connected with connecting rod (15); Flow guide bead (16), the other end of the connecting rod (15) is fixedly connected with flow guide bead (16); Oil outlet hole (17), the oil outlet hole (17) is provided on the flow guide bead (16); Oil delivery channel (18), the cam (9) is provided with oil delivery channel (18) inside.

3. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 2, wherein, The mounting groove (12) is not communicated with the oil guide channel (11), the sliding block (14) is slidingly connected in the mounting groove (12), and the two are tightly connected, and the flow guide bead (16) can be slidingly connected in the mounting groove (12).

4. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 3, wherein, The oil delivery channel (18) is communicated with the oil guide channel (11) at one end, and is communicated with the mounting groove (12) at the other end, and the two connection places are aligned with the sliding block (14).

5. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 4, wherein, The oil inlet of the oil inlet channel (10) is provided with a protective plug (19).

6. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 5, wherein, Also includes: Limiting groove (20), the sidewall of the one end of the first camshaft (1) and the second camshaft (3) is provided with limiting groove (20); Ring cover (21), two groups of ring covers (21) are installed on the limiting groove (20); Connecting plugboard (22), one end of the outer arc surface of the ring cover (21) is fixedly connected with a group of connecting plugboards (22); Limiting plate (23), the other end of the outer arc surface of the ring cover (21) is fixedly installed with a group of limiting plates (23), and the connecting plugboard (22) and the limiting plate (23) are installed at the same position.

7. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 6, wherein, The connecting plugboard (22) is provided with a deformation groove (24) in the middle of the outer side, and two groups of conical protrusions (25) are symmetrically installed on the outer side of the connecting plugboard (22), and the limiting plate (23) is provided with a plug hole corresponding to the position of the connecting plugboard (22).

8. A wear resistant camshaft assembly having a lubrication gallery as claimed in claim 7, wherein, The conical protrusions (25) are integrally formed with the connecting plugboard (22).

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