CN214836596U

CN214836596U - Camshaft device convenient to adjust

Info

Publication number: CN214836596U
Application number: CN202121213600.8U
Authority: CN
Inventors: 唐昌文; 王刚; 罗华; 刘兵
Original assignee: Mianyang Yangchen Auto Parts Co ltd
Current assignee: Mianyang Yangchen Auto Parts Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-11-23
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a camshaft device convenient to adjust, include: the first cam shaft is internally provided with first limiting grooves which are arranged at equal angles, and the first limiting grooves are arranged at equal intervals in the horizontal direction of the first cam shaft; the cross section of the limiting block is in a trapezoidal structure and is tightly attached to the inside of the first limiting groove; the fixed block is vertically and slidably arranged inside the cam block; the second spacing groove has been seted up to the inside equiangular level of right-hand member of first camshaft, the outside cover of first camshaft is equipped with the cam piece that the top is hollow column structure, and the bottom threaded connection of cam piece has the transversal movable rod of personally submitting "T" style of calligraphy structure. This camshaft device convenient to adjust not only is convenient for adjust the camshaft, can effectively reduce the device moreover and the mutual friction of valve, does not influence life, is convenient for dismantle the maintenance simultaneously.

Description

Camshaft device convenient to adjust

Technical Field

The utility model relates to a camshaft technical field specifically is a camshaft device convenient to adjust.

Background

The camshaft device is one of key parts of an engine, the camshaft is an important air intake and exhaust control part, two or one camshaft is usually arranged in the engine, and the camshaft is machined from a steel forging blank and then integrally formed through quenching.

Chinese patent is granted No. CN210509927U, and the announcement day is 20200512, discloses a camshaft convenient to installation camshaft bearing cap, including the camshaft, camshaft both ends outer wall all overlaps and is equipped with the bearing, and two bearing tops all are equipped with the top cap, and two top caps are close to the bottom of one side lateral wall mutually and all dig a camshaft groove, and two top cap bottoms have all dug a bearing top groove, and both ends all are fixed with a stopper around two top caps, the utility model discloses the beneficial effect who reaches is: the utility model discloses a top cap and base are through the connection of No. two spacing bolts, the installation is simple, carry out spacingly to camshaft both ends bearing, and a camshaft groove through the excavation, the bearing top groove, No. two camshaft grooves and bearing kerve, can carry on spacingly to two bearing outer walls, spacing effect is stronger, and the installation back, the problem of bearing roll-off can not appear, avoid the repeated installation bearing cap, also prevent simultaneously that the dust from carrying out in the bearing, influence the work of bearing and damage the bearing, have fine practicality and popularization nature.

The above prior art scheme has the following defects that the camshaft is not convenient to adjust, the friction between the device and the valve cannot be effectively reduced, the service life is influenced, and meanwhile, the disassembly and maintenance are not convenient, so that the camshaft device convenient to adjust is provided, and the problem provided in the scheme is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camshaft device convenient to adjust to solve the present camshaft device of being convenient for to adjust that the above-mentioned background art provided commonly used, not only be not convenient for adjust the camshaft, can not effectively reduce the device moreover and the valve friction each other, influence life, be not convenient for dismantle the problem of maintenance simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: a camshaft arrangement for facilitating adjustment, comprising:

the first cam shaft is internally provided with first limiting grooves which are arranged at equal angles, and the first limiting grooves are arranged at equal intervals in the horizontal direction of the first cam shaft;

the cross section of the limiting block is in a trapezoidal structure and is tightly attached to the inside of the first limiting groove;

the fixed block is vertically and slidably arranged inside the cam block;

and the right end of the first cam shaft is internally and horizontally provided with a second limiting groove at an equal angle.

Preferably, a cam block with a hollow structure at the top is sleeved on the outer side of the first cam shaft, and a movable rod with a T-shaped cross section is in threaded connection with the bottom end of the cam block;

and the top end of the movable rod is rotatably provided with a limiting block which is arranged inside the cam block in a vertical sliding manner.

Preferably, the connecting blocks are arranged on the left side and the right side of the interior of the cam block in a sliding mode, and springs for resetting the connecting blocks are connected to the inner sides of the connecting blocks.

Preferably, the connecting rod is rotatably installed on the top end of the connecting block, and the top end of the connecting rod is hinged with a fixing block which forms a linkage structure with the connecting block.

Preferably, the right end of the first camshaft is horizontally and rotatably provided with a connecting disc in a cylindrical structure, and the inner part of the connecting disc is in threaded connection with a second camshaft.

Preferably, the left end of the second camshaft is fixedly connected with a limiting rod which is the same as the second limiting groove in size and shape, and the second camshaft and the connecting disc are fixedly connected through fixing screws which are arranged in an up-down symmetrical mode.

Compared with the prior art, the beneficial effects of the utility model are that: the camshaft device convenient to adjust not only facilitates the adjustment of the camshaft, but also can effectively reduce the friction between the device and the valve, does not affect the service life, and is convenient to disassemble and maintain;

1. the cam block is slid leftwards and rightwards according to the preset position, the position of the cam block is adjusted, the movable rod is rotated to drive the limiting block to move inwards, the limiting block is clamped with the first limiting groove, the cam block and the first cam shaft are fixed, and the device is convenient for adjusting the cam shaft;

2. when the camshaft rotates slowly, the fixed block is reset through the spring, the fixed block is not in contact with the valve, when the speed is increased and the cam block needs to provide large friction force, the fixed block moves outwards due to the action of centrifugal force, so that the friction force between the cam block and the valve is increased, the friction between the device and the valve can be effectively reduced, and the service life is not influenced;

3. the fixing screws are separated from the second cam shaft by rotating the fixing screws, and the connecting disc drives the second cam shaft to move towards the right side by rotating the connecting disc, so that the first cam shaft and the second cam shaft are separated from each other, and the device is convenient to disassemble and maintain.

Drawings

FIG. 1 is a front sectional structure of the present invention;

FIG. 2 is a schematic view of a connecting side cutting structure of the first camshaft and the cam block of the present invention;

FIG. 3 is a side sectional structure diagram of the connection plate and the second camshaft of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a first camshaft; 2. a first limit groove; 3. a cam block; 4. a movable rod; 5. a limiting block; 6. connecting blocks; 7. a spring; 8. a connecting rod; 9. a fixed block; 10. a second limit groove; 11. a connecting disc; 12. a second camshaft; 13. a limiting rod; 14. and fixing the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a camshaft arrangement for facilitating adjustment, comprising: when the camshaft device convenient to adjust is used, the cam block 3 is installed on the outer side of the first camshaft 1 in a left-right sliding mode, the position of the cam block 3 is adjusted according to use requirements in a left-right sliding mode, the movable rod 4 is in threaded connection with the cam block 3, a rotating structure is formed between the movable rod 4 and the limit block 5, a sliding structure is formed between the limit block 5 and the cam block 3, the limit block 5 is clamped into the first limit groove 2 by rotating the movable rod 4, the cam block 3 is fixed with the first camshaft 1, and the camshaft device is convenient to adjust;

as shown in fig. 1 and 4, the connecting block 6 is slidably mounted inside the cam block 3, the connecting rod 8 is hinged with the connecting block 6 and the fixing block 9, when the rotating speed of the first camshaft 1 is slow, the connecting block 6 resets the first camshaft through the spring 7, so that the fixed block 9 cannot move upwards, the friction force between the cam block 3 and the valve is small, when the cam block 3 is required to provide a large frictional force after the first camshaft 1 exceeds a certain speed, the fixed block 9 moves outward due to the centrifugal force, the bottom of the fixed block 9 is limited by the bulge, so that the upper surface of the fixed block 9 and the upper surface of the cam block 3 are always in the same plane, the fixed block 9 is contacted with the valve, the friction force between the device and the valve is increased, the device can effectively reduce the friction between the device and the valve, and the service life is not influenced;

as shown in fig. 1 and 3, the fixing screw 14 is rotated to separate the fixing screw 14 from the second camshaft 12, the connecting disc 11 is rotatably mounted at the right end of the first camshaft 1, the connecting disc 11 is connected with the second camshaft 12 in a threaded manner, the connecting disc 11 is rotated to drive the second camshaft 12 to move towards the right side, the limiting rod 13 is separated from the second limiting groove 10, the first camshaft 1 is separated from the second camshaft 12, and the device is convenient to disassemble and maintain, which is the whole working process of the camshaft device convenient to adjust.

Those not described in detail in this specification are within the skill of the art. The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A camshaft assembly for facilitating adjustment, comprising:

the cam shaft structure comprises a first cam shaft (1), wherein first limiting grooves (2) which are arranged at equal angles are formed in the first cam shaft (1), and the first limiting grooves (2) are formed in the horizontal direction of the first cam shaft (1) at equal intervals;

the cross section of the limiting block (5) is in a trapezoidal structure and is tightly attached to the inside of the first limiting groove (2);

the fixing block (9), the said fixing block (9) is mounted inside cam block (3) slidably from top to bottom;

and the second limiting groove (10) is horizontally formed in the right end of the first camshaft (1) at an equal angle.

2. An adjustable camshaft assembly as defined in claim 1, wherein: a cam block (3) with a hollow structure at the top is sleeved on the outer side of the first camshaft (1), and a movable rod (4) with a T-shaped cross section is in threaded connection with the bottom end of the cam block (3);

the top end of the movable rod (4) is rotatably provided with a limiting block (5) which is arranged inside the cam block (3) in a vertical sliding mode.

3. An adjustable camshaft assembly as defined in claim 2, wherein: the cam block (3) is characterized in that connecting blocks (6) are installed on the left side and the right side of the interior of the cam block in a sliding mode, and springs (7) for resetting the connecting blocks (6) are connected to the inner sides of the connecting blocks.

4. An adjustable camshaft assembly as defined in claim 3, wherein: the top of connecting block (6) rotates installs connecting rod (8), and the top of connecting rod (8) articulate have with connecting block (6) between constitute fixed block (9) of interlock structure.

5. An adjustable camshaft assembly as defined in claim 1, wherein: the right end horizontal rotation of first camshaft (1) installs connection pad (11) that are cylindric structure, and the internal thread of connection pad (11) is connected with second camshaft (12).

6. An adjustable camshaft assembly as defined in claim 5, wherein: the left end of the second camshaft (12) is fixedly connected with a limiting rod (13) which is the same as the second limiting groove (10) in size and shape, and the second camshaft (12) and the connecting disc (11) are fixedly connected through fixing screws (14) which are symmetrically arranged up and down.