CN217669208U

CN217669208U - Valve spring compression device

Info

Publication number: CN217669208U
Application number: CN202221101469.0U
Authority: CN
Inventors: 王文全; 徐路路; 袁彬; 李永强; 秦振振; 王治国; 丁金; 宋合伟
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-10-28
Anticipated expiration: 2032-05-09

Abstract

The utility model belongs to the auto-parts field, concretely relates to valve spring compression device, this valve spring compression device include mount, first installation department, second installation department, cylinder and effect portion. Wherein, the first installation part is arranged on the fixed frame in a sliding way. The second installation part is arranged on the first installation part in a sliding mode. The second sliding direction of the second mounting portion is perpendicular to the first sliding direction of the first mounting portion. The cylinder sets up on the second installation department. The telescopic direction of the cylinder rod of the cylinder is perpendicular to the plane where the first sliding direction and the second sliding direction are located together. The action part is arranged on the cylinder rod and moves together with the telescopic motion of the cylinder rod. The utility model discloses a set up mount, first installation department, second installation department and the cylinder of cooperation installation, realized that the position of effect portion on three side is adjustable, make valve spring's dismouting work more for portably just having the suitability, be favorable to reducing operating personnel's working strength.

Description

Valve spring compression device

Technical Field

The utility model belongs to the technical field of the vehicle accessories, concretely relates to valve spring compressor arrangement.

Background

Under the long-term action of high temperature and periodic high-frequency alternating force, the valve spring of the engine is easy to wear and deform after being used for a period of time, so that the elastic force of the valve spring is weakened, the valve is not closed tightly, the power of the engine is reduced, and the engine is difficult to start.

The existing valve spring dismounting tool comprises a positioning rod, a pressing rod and a support, wherein the positioning rod is hinged with the pressing rod, and the bottom end of the positioning rod is provided with a thread matched with a screw hole of a cylinder cover; the support sets up on the depression bar and with the depression bar looks articulated, the bottom of support is equipped with and is used for holding the accommodation space that the locking piece and supply people's hand to advance out. During installation, the pressure rod is abutted against the valve spring to expose the installation position of the locking block, and the locking block is installed at the installation position by hand to realize the installation of the valve spring; when the valve spring is disassembled, the valve spring is exposed by abutting against the pressure rod and the valve spring can be disassembled by taking out the locking piece by hand.

But the existing valve spring assembling and disassembling tools still have many problems, such as: when valve spring packing force is too big and a large amount, just need constantly adjust the fixed position of locating lever at the dismouting in-process, simultaneously, to the operator, adopt above-mentioned instrument to carry out the pressure equipment, not only intensity of labour is big, and wastes time and energy. In addition, the problem that the valve locking clamp is easy to fall off exists in the installation process, and the convenience of replacing the valve spring is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at least solving the problem that the labor intensity of the disassembly and assembly process of the valve spring is large and the time and the labor are wasted when the pressing force of the valve spring is too large and the quantity is more. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides a valve spring compression device, include:

a fixed mount;

the first mounting part is arranged on the fixed frame in a sliding manner;

the second mounting part is arranged on the first mounting part in a sliding manner; the second sliding direction of the second mounting part is perpendicular to the first sliding direction of the first mounting part;

the cylinder is arranged on the second mounting part; the telescopic direction of a cylinder rod of the cylinder is perpendicular to the plane where the first sliding direction and the second sliding direction are located together;

and the acting part is arranged on the air cylinder rod and moves together along with the telescopic motion of the air cylinder rod.

Valve spring compressor arrangement, through setting up the mount of cooperation installation, first installation department, second installation department and cylinder, it is adjustable to have realized that the position of action portion in three side is adjustable, make valve spring's dismouting work become more simple and convenient and have the suitability, and simultaneously, it moves jointly to set up the concertina movement of action portion along with the cylinder pole, regard the power supply of drive action portion motion with the cylinder, help reducing operating personnel's intensity of work, and improve the work efficiency of valve spring dismouting, when valve spring packing force is too big and quantity is more solved, valve spring's dismouting process intensity of labour is big, and the problem that wastes time and energy.

In addition, according to the utility model discloses a valve spring compression device still can have following additional technical characterstic:

in some embodiments of the present invention, the method further comprises:

and the control part is connected with the second installation part or the air cylinder and is used for controlling the working state of the air cylinder.

In some embodiments of the present invention, the control portion includes:

and the gear switching of the cylinder control valve is used for controlling the working state of the cylinder.

In some embodiments of the present invention, the control unit further includes:

and the operating handle is used for controlling the gear switching of the cylinder control valve.

In some embodiments of the present invention, the cylinder control valve is configured as a two-position, five-way control valve, and the cylinder is a double-acting cylinder.

In some embodiments of the present invention, the following are also included:

the mounting bracket is arranged on the second mounting part in a sliding manner; the third sliding direction of the mounting bracket is parallel to the telescopic direction of the cylinder rod; the cylinder is fixedly arranged on the mounting bracket.

In some embodiments of the present invention, the fixing frame includes a first supporting frame and a second supporting frame arranged at an interval; the first mounting part is connected with the first support frame and the second support frame respectively and slides on the first support frame and the second support frame synchronously.

In some embodiments of the present invention, the method further comprises:

and the adsorption component is provided with a magnetic attraction piece which can move relative to the action part.

In some embodiments of the present invention, the adsorption assembly further comprises:

and the adjusting piece is fixedly arranged on the second mounting part, and the free end of the adjusting piece is provided with the magnetic attraction piece.

In some embodiments of the invention, the adjustment member is configured as a universal bamboo joint tube.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. In the drawings:

fig. 1 is a schematic structural view schematically illustrating an operating state of a valve spring compression device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a valve spring compression device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a valve spring according to an embodiment of the present invention;

fig. 4 is a schematic view of the working principle of the cylinder control valve according to the embodiment of the present invention;

fig. 5 is a schematic view of an operating state of the valve spring compression device according to the embodiment of the present invention;

fig. 6 is a partial schematic view of the valve spring compressing device according to the embodiment of the present invention during operation.

In the drawings, the reference numerals denote the following:

1. an engine; 11. a cylinder head; 12. a valve spring; 121. an air valve; 122. a spring upper seat; 123. a valve collet; 124. a spring; 13. a piston;

2. a fixed mount; 21. a first support frame; 22. a second support frame; 23. a first mounting plate; 24. a first slide rail; 25. a first slider;

3. a first mounting portion; 31. a second mounting plate; 32. a second slide rail;

4. a second mounting portion; 41. a second slide rail;

5. mounting a bracket;

6. a cylinder;

7. an action part;

8. a control unit; 81. a cylinder control valve; 82. an operating handle;

9. an adsorption component; 91. a magnetic member; 92. an adjusting member.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "at 8230; \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model relates to a valve spring compressor arrangement, on the global design, this compressor arrangement is including mount, first installation department, second installation department, cylinder and effect portion.

Wherein, the first installation part is arranged on the fixed frame in a sliding way. The second mounting part is arranged on the first mounting part in a sliding manner, and the second sliding direction of the second mounting part is perpendicular to the first sliding direction of the first mounting part. The cylinder sets up on the second installation department, and the flexible direction perpendicular to first slip direction of the cylinder pole of cylinder and the common place plane setting of second slip direction. The acting part is arranged on the air cylinder rod and moves together with the telescopic motion of the air cylinder rod.

Based on the above design concept, the valve spring compressing apparatus according to the present embodiment has an exemplary structure as shown in fig. 1 and 2, and at this time, is used to compress or release a valve spring 12 mounted on a cylinder head 11 of an engine 1. As shown in fig. 3, the valve spring 12 specifically includes a valve 121 penetrating through the cylinder head 11, a valve collet 123 disposed at the top of the valve 121, an upper spring seat 122 wrapped around the outer peripheral surface of the valve collet 123, and a spring 124 disposed between the upper spring seat 122 and the cylinder head 11.

In some embodiments of the present invention, the fixing frame 2 includes a first supporting frame 21 and a second supporting frame 22 disposed at an interval. The first mounting part 3 is connected to the first support frame 21 and the second support frame 22, and the first mounting part 3 slides on the first support frame 21 and the second support frame 22 synchronously.

Specifically, the first support frame 21 includes two support columns arranged at intervals, and a first mounting plate 23 connected to and arranged at the top ends of the two support columns. In the present embodiment, a screw thread is provided at the bottom end of the support pillar that is screwed to the screw hole in the cylinder head 11, as shown in fig. 2, and the support pillar is screwed to the cylinder head 11 of the engine 1. Meanwhile, the support columns and the first mounting plate 23 can be connected in a threaded connection mode or in other connection modes such as a bearing connection mode, so that the two support columns can be fixed relative to the first mounting plate 23, and the mounting of the support columns on the cylinder cover 11 is not affected.

In some embodiments of the present invention, a first slide rail 24 is disposed on the top of the first mounting plate 23, and a first slider 25 is disposed on the first slide rail 24. The first mounting portion 3 is disposed on the first slider 25, so that the first sliding direction of the first mounting plate 23 is the direction of the first slide rail 24, which is also the X-axis direction shown in fig. 2. In the present embodiment, the first mounting portion 3 is fixedly connected to the first slider 25, but the first mounting portion 3 and the first slider 25 may be detachably connected depending on the type of the engine 1. Meanwhile, in the present embodiment, the second supporting frame 22 and the first supporting frame 21 have the same structure, and the connection manner with the first mounting portion 3 is also the same, so the details are not repeated herein.

It should be noted that the structure of the fixing frame 2 and the cooperation between the cylinder head 11 and the first mounting portion 3 are not limited to the above-mentioned structure, so as to fix the fixing frame relative to the cylinder head 11 without affecting the movement of the acting portion 7, such as magnetic attraction or clamping, and the above-mentioned structure is adopted only because the structure is simple, the manufacturing is convenient, and the operation difficulty is low.

As also shown in fig. 2, the first mounting portion 3 includes a second mounting plate 31 disposed on the fixed frame 2, and a second slide rail 32 disposed on top of the second mounting plate 31. In this embodiment, the second mounting portion 4 is slidably disposed on the second slide rail 32. The second sliding direction of the second mounting plate 31 is the direction of the second slide rail 32, which is also the Y-axis direction shown in fig. 1. Specifically, the second slide rail 32 is perpendicular to the first slide rail 24, so the second sliding direction of the second mounting portion 4 is perpendicular to the first sliding direction of the first mounting portion 3. So set up, can realize action portion 7 removal regulation on same horizontal plane to can effectively reduce the degree of difficulty and the length of time of the position control of action portion 7, help promoting this valve spring compressor arrangement's work convenience.

In some embodiments of the present invention, the valve spring compressing device is further provided with a mounting bracket 5, and the mounting bracket 5 is slidably disposed on the second mounting portion 4; the third sliding direction of the mounting bracket 5 is arranged parallel to the telescopic direction of the cylinder rod of the cylinder 6. The cylinder 6 is fixedly arranged on the mounting bracket 5. Wherein, the working direction of the cylinder 6 is arranged perpendicular to the common plane of the first sliding direction and the second sliding direction. As shown in fig. 2, the operating direction of the cylinder 6 is the Z-axis direction. The installation of the mounting bracket 5 contributes to further increase of the adjustment range of the acting portion 7 in the Z-axis direction, thereby contributing to further increase of the applicability of the valve spring compression device.

Specifically, in the present embodiment, the third slide rail 41 is provided on the second mounting portion 4 in a direction perpendicular to the direction in which the first slide rail 24 is provided and the direction in which the second slide rail 32 is provided. Wherein, the mounting bracket 5 is slidably disposed on the third slide rail 41, and the cylinder 6 is fixedly mounted on the mounting bracket 5. Meanwhile, the telescopic direction of the cylinder rod is parallel to the direction of the third slide rail 41. The sliding of the cylinder 6 is realized by adopting the matching structure of the third slide rail 41 and the mounting bracket 5, so that the structure is simple, the manufacturing is convenient, and the cylinder 6 can be quickly adjusted in the Z-axis direction. Of course, the mounting structure of the mounting bracket 5 on the second mounting portion 4 may also adopt other structural forms so as to ensure that the mounting bracket 5 can slide, and the sliding direction is only required to be in the Z-axis direction.

In some embodiments of the present invention, the valve spring compressing apparatus further includes a control portion 8. Wherein, the control part 8 is connected to the second mounting part 4 or the cylinder 6, and the control part 8 is used for controlling the working state of the cylinder 6. By providing the control unit 8, the working state of the cylinder 6 can be controlled by an operator, and the valve spring compression device can be attached to and detached from the cylinder head 11 along with the fixing frame 2, thereby further improving the applicability and the cheapness of the valve spring compression device.

In some embodiments of the present invention, the control unit 8 includes a cylinder control valve 81. Wherein the shift switching of the cylinder control valve 81 can control the operating state of the cylinder 6. The cylinder control valve 81 capable of switching gears is used as a control device for adjusting the working state of the cylinder 6, so that the control device has the characteristics of simplicity in control and rapidness in response, and is better in safety and free of extra protective measures. In this embodiment, the cylinder control valve 81 is mounted on the mounting bracket 5, is movable with the movement of the mounting bracket 5, and remains fixed relative to the cylinder 6. With such an arrangement, the position adjustment of the cylinder 6 and the adjustment of the operating state can be performed together, which contributes to further improving the convenience of use for the operator.

In the present embodiment, the cylinder control valve 81 is configured as a two-position five-way control valve, and the cylinder 6 is a double-acting cylinder. As shown in fig. 4, the cylinder control valve 81 operates on the following principle: A. the end B acts on the M end and the N end of the cylinder 6 respectively, the end P is a compressed air input end, and the ends R and S are communicated with the atmosphere. When the cylinder control valve 81 is located at the "compression" gear (the left gear in fig. 4), the compressed air acts on the M end of the cylinder 6 through the cylinder control valve 81, the N end of the cylinder 6 is communicated with the atmosphere, and at this time, the push rod inside the cylinder 6 extends out to drive the acting part 7 to overcome the elastic force of the valve spring 12, so as to compress the valve spring 12. On the contrary, when the cylinder control valve 81 is located at the "release" gear position (the right gear position in fig. 4), the compressed air will act on the N end of the cylinder 6 through the cylinder control valve 81, the M end of the cylinder 6 is communicated with the atmosphere, at this time, the push rod inside the cylinder 6 is retracted, and the pressure of the acting part 7 on the valve spring 12 is released. Adopt two-position five-way control valve and two effect cylinder complex structural style, not only the product is ripe, can directly purchase the equipment, and control effect is better, can effectively ensure the compression of effect portion 7 or the accuracy of release work goes on.

Meanwhile, in order to better adapt to the regulation and control of the cylinder control valve 81 by the operator, the control part 8 of the valve spring compression device is further provided with an operating handle 82 for controlling the gear shifting of the cylinder control valve 81. In this embodiment, an operator can control the operating handle 82 to switch between a "compression" shift position and a "release" shift position of the cylinder control valve 81, so as to ensure that the acting portion 7 performs compression and release of the valve spring 12, and compared with the prior art, the labor intensity of the operator is greatly reduced.

Here, although the control unit 8 may control the operating state of the cylinder 6 by a method such as a surface control or a programmed control, the control method according to the present embodiment is simpler in structure and is lower in investment cost.

As shown in fig. 2, 5 and 6, in the present embodiment, the acting part 7 specifically includes a press-fitting seat 72 for pressing the valve spring 12, and a connecting bracket 71 for mounting on the cylinder rod. Wherein the press-fitting seat 72 has an active surface adapted to abut the spring upper seat 122. Meanwhile, an avoiding space is provided on the connecting frame 72, specifically, the avoiding space can be used for inserting the valve 121 and approaching the magnetic attraction piece 91 when the press-fitting seat 72 compresses the valve spring 12, thereby being helpful for ensuring the smooth implementation of the compression of the valve spring 12 and the attraction of the magnetic attraction piece 91 on the valve locking clamp 123.

In addition, the valve spring compression device further comprises an adsorption component 9, wherein the adsorption component 9 is provided with a magnetic attraction piece 91 which can move relative to the action part 7. The magnetic attraction piece 91 can prevent the valve locking clamp 123 from falling or even losing during the disassembly and assembly process of the valve spring 12. Simultaneously, make magnetism inhale piece 91 and can remove for effect portion 7, then can further improve this compressor arrangement's suitability, guarantee magnetism inhale piece 91 all can realize adsorbing the accuracy of valve collet 123 on different models.

In some embodiments of the present invention, the absorbing assembly 9 is further provided with an adjusting member 92, the adjusting member 92 is fixedly mounted on the second mounting portion 4, and the free end of the adjusting member 92 is provided with the magnetic absorbing member 91. The adjustment part 92 is arranged to ensure that the magnetic attraction part 91 moves smoothly relative to the action part 7, and meanwhile, the adjustment part 92 is arranged on the second installation part 4 to ensure that the magnetic attraction part 91 can be assembled and disassembled on the cylinder cover 11 along with the fixed frame 2, which is beneficial to further improving the applicability of the valve spring compression device.

In some embodiments of the present invention, as shown in fig. 1, 2 and 5, the adjustment member 92 is configured as a universal bamboo joint tube. In this embodiment, one end of the universal bamboo joint pipe is fixed on the second mounting portion 4, and the other end is provided with the magnetic attraction piece 91. The universal bamboo joint pipe is adopted as the adjusting piece 92, so that the universal bamboo joint pipe can be directly manually assembled, the using length can be adjusted at will, the free end direction of the universal bamboo joint pipe can rotate at will, and the using flexibility of the magnetic absorbing piece 91 is greatly improved.

In actual use, as shown in fig. 1 and 5, the fixing frame 2 is first mounted on the cylinder head 11 of the engine 1, and then the engine is turned so that the in-cylinder piston 13 of the currently exchanged valve spring 12 is positioned near the top dead center, thereby preventing the valve 121 from falling into the cylinder during the replacement of the valve spring 12. Then, the position of the action part 7 on the X-Y-Z axis is adjusted by utilizing the sliding adjustability of the first mounting part 3, the second mounting part 4 and the mounting bracket 5, so that the action part 7 on the double-acting cylinder is quickly adjusted to the upper part of the valve spring 12, the cylinder control valve 81 is used for carrying out pneumatic control on the double-acting cylinder by controlling the operating handle 82, the operation of compressing or releasing the valve spring 12 by the action part 7 can be realized, and the valve spring 12 can be replaced. And after the current valve spring 12 is replaced, the acting part 7 slides in the plane of the X-Y axis by adjusting the position of the first mounting part 3 on the first slide rail 24 and the position of the second mounting part 4 on the second slide rail 32, so that the valve spring 12 is replaced continuously by quickly adjusting the acting part 7 to the next position.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A valve spring compression device, comprising:

a fixed mount;

the first mounting part is arranged on the fixing frame in a sliding manner;

and the action part is arranged on the air cylinder rod and moves together with the telescopic motion of the air cylinder rod.

2. The valve spring compression device of claim 1, further comprising:

3. The valve spring compression device according to claim 2, wherein the control portion includes:

4. The valve spring compression device according to claim 3, wherein the control portion further includes:

5. The valve spring compression device of claim 3, wherein the cylinder control valve is configured as a two-position, five-way control valve and the cylinder is a double-acting cylinder.

6. The valve spring compression device of claim 1, further comprising:

7. The valve spring compression device of claim 1, wherein the mount includes first and second spaced apart supports; the first mounting part is connected with the first support frame and the second support frame respectively and slides on the first support frame and the second support frame synchronously.

8. The valve spring compression device of claim 1, further comprising:

and the adsorption component is provided with a magnetic attraction piece which can be movably arranged relative to the action part.

9. The valve spring compression device of claim 8, wherein the adsorption assembly further comprises:

and the adjusting piece is fixedly arranged on the second mounting part, and the free end of the adjusting piece is provided with the magnetic part.

10. The valve spring compression device of claim 9, wherein the adjustment member is configured as a gimballed bamboo tube.