CN213647409U

CN213647409U - Disassembling tool for valve seat

Info

Publication number: CN213647409U
Application number: CN202022174882.7U
Authority: CN
Inventors: 黄常远; 周广宇; 张淑兰; 游建亮; 马毓杰
Original assignee: Jinan Tianye Construction Machinery Co ltd
Current assignee: Jinan Tianye Construction Machinery Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-07-09
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses an assembly and disassembly tools of disk seat, include the main part and set up in the spacing arch of main part, the extending direction of the recess of spacing arch edge disk seat top surface extends, and with the drive of recess plane contact the disk seat is rotatory. The utility model discloses a main part and spacing bellied setting have solved current disk seat and have dismantled hard and easily impaired problem, have improved the efficiency and the success rate that the disk seat was dismantled.

Description

Disassembling tool for valve seat

Technical Field

The utility model relates to an auto repair technical field, concretely relates to assembly and disassembly tools of disk seat.

Background

The central valve block of the loader is provided with two pressure limiting valves which respectively act on brake pressurizing pressure and servo maximum pressure, valve seats of the two pressure limiting valves are arranged inside the central valve body, two O-shaped rings are arranged outside the valve seats and used for sealing, the O-shaped rings are aged after long-time use to cause pressure leakage and influence hydraulic working performance, and therefore the valve seats are required to be disassembled so as to replace new O-shaped rings.

Usually, the top of the valve seat is provided with a straight groove, when the valve seat is disassembled and assembled, a worker usually needs to insert the tool bit of the screwdriver into the straight groove, and then the screwdriver is knocked by a knocking and chiseling tool to loosen the valve seat and disassemble the valve seat.

However, the width of the screwdriver head cannot be completely matched with the groove, and the inclined surface portion of the screwdriver head cannot be attached to the side wall of the straight groove, so that even if a punch is used for knocking and chiseling the screwdriver, the screwdriver can be detached with difficulty, and the detaching efficiency is low. In addition, in the beating process, the screwdriver can impact the edge of the valve seat, the valve seat is prone to cracking and deformation, the valve seat is prone to damage, once the valve seat is damaged, a new whole piece needs to be replaced, and maintenance cost is increased.

It can be seen that the prior art is still subject to further improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembly and disassembly tools of disk seat for solve current disk seat and dismantle hard and easily impaired problem.

In order to achieve the above object, the utility model provides an assembly and disassembly tools of disk seat, include the main part and set up in the spacing arch of main part, the extending direction of the recess of spacing arch edge disk seat top surface extends, and with the recess plane contact in order to drive the disk seat rotatory.

The extending direction of the groove of the top surface of the valve seat is extended by the limiting protrusions, the limiting protrusions are in plane contact with the groove of the top surface of the valve seat, when a worker rotates the main body of the dismounting tool, the surface of the limiting protrusions is tightly attached to the inner side face of the groove through the control main body, the valve seat can be driven to rotate by the rotation of the driving main body, the valve seat is made to be loose, the dismounting is convenient, the auxiliary tool is not needed to be knocked in the dismounting process, the valve seat is prevented from being damaged, the dismounting efficiency of the valve seat is improved. When the valve seat is loosened, a worker can take the valve seat out conveniently, for example, the valve seat is sucked out from the central valve body by a magnet, and the disassembly is finished.

In a preferred implementation of the valve seat dismounting tool, the main body and the limiting protrusion are integrally formed.

Because main part and spacing protruding integrated into one piece have made things convenient for assembly and disassembly tools's manufacturing, and in the use, main part and spacing protruding difficult appearance are not hard up because of integrated into one piece, and the structure is reliable.

In a preferred implementation mode of the disassembly and assembly tool for the valve seat, the main body is of a columnar structure, and the limiting protrusion is arranged on the end face of the columnar structure and extends in a linear shape.

The main body of the dismounting tool is arranged to be of a columnar structure, so that the dismounting tool can be controlled in the dismounting process, and the operation efficiency can be improved. Because the top of disk seat is equipped with the straight groove usually, with spacing arch setting at the terminal surface of columnar structure, and be the extension of a word form for spacing protruding surface on the assembly and disassembly tools is hugged closely the cooperation with the straight inslot medial surface of disk seat. The workman operates the main part and makes the main part rotate, and spacing protruding surface is hugged closely with the internal surface in straight line groove to drive the rotation of disk seat so that the disk seat is not hard up, and rethread magnet is with disk seat suction from central valve body, has improved the success rate of demolising the disk seat.

In a preferred implementation mode of the dismounting tool for the valve seat, the middle part of the limiting bulge is provided with an avoiding notch.

For installing the disk seat, the center of the groove of the disk seat is provided with a valve core installation lug, therefore, the middle part of the limiting bulge is provided with an avoidance notch for avoiding the valve core installation lug, and the interference of the valve core installation lug on a dismounting tool is avoided when the dismounting tool is used, so that the disk seat is rotated to enable the disk seat to be loosened by better fitting of the limiting bulge surface of the dismounting tool and the inner side surface of the groove of the disk seat, and the success rate of dismounting the disk seat is improved.

In a preferred implementation manner of the valve seat assembling and disassembling tool, a driving part for driving the columnar structure to rotate is arranged at one end, far away from the limiting protrusion, of the columnar structure.

Keep away from spacing bellied one end at columnar structure and set up drive columnar structure pivoted drive division, the setting of drive division has made things convenient for the operation to assembly and disassembly tools, and in operation process, rotation drive division can drive columnar structure and rotate for spacing protruding surface and recess internal surface are hugged closely the cooperation and are driven the disk seat and rotate, in order not hard up the disk seat.

In a preferred implementation of the valve seat removal tool, the drive portion is wrapped with a non-slip mat for cooperation with a wrench.

Wrapping up the slipmat at the drive division, help drive division and spanner complex in-process to increase the frictional force between drive division and the spanner, avoid skidding, thereby the workman rotates the drive division with the help of the spanner and drives the assembly and disassembly tools and rotate the disk seat so that the disk seat is not hard up, operates more laborsavingly.

In a preferred embodiment of the tool for removing and mounting a valve seat, the driving portion is prism-shaped.

Set up the drive division into the prism form, the user when rotating the disk seat, through select with drive division complex hexagonal sleeve or square sleeve, just can drive assembly and disassembly tools with the help of instrument operation drive division such as spanner and rotate the disk seat and make the disk seat not hard up, convenient operation and laborsaving.

In a preferred implementation manner of the valve seat dismounting tool, the protruding height H of the limiting protrusion is 2-4mm, and the width W of the limiting protrusion is 2-4 mm.

When spacing bellied highly be less than 2mm, can appear spacing bellied partly (upper portion) cooperation with the disk seat recess only, rotate assembly and disassembly tools and drive the rotatory in-process that makes it become flexible and produce easily and rock. When spacing bellied highly be higher than 4mm, spacing bellied partly can not make its not hard up in-process with the disk seat recess butt, rotating the rotatory disk seat of assembly and disassembly tools, because spacing bellied partly can't make its not hard up with the disk seat butt, and its thickness is less, and intensity is lower, and spacing arch produces the fracture easily, in addition, can cause the main part slope, is unfavorable for dismantling. The height H of the limiting bulge is limited to be 2-4mm, so that the dismantling stability is improved, the strength of the limiting bulge and the valve seat groove in matched use is enhanced, and the dismantling is more labor-saving.

When spacing bellied width is less than 2mm, its and disk seat recess clearance fit, at the in-process that rotates the not hard up disk seat of assembly and disassembly tools, produce easily and rock. When the width of the limiting protrusion is larger than 4mm, the limiting protrusion and the groove are in interference fit, and the limiting protrusion is difficult to install in the groove. The width W of the limiting bulge is limited to be 2-4mm, so that the dismounting stability is improved, and the dismounting is convenient.

In a preferred implementation of the valve seat dismounting tool, the width W of the limiting protrusion is 0.1mm smaller than the groove width of the valve seat.

The width W of the limiting bulge is set to be 0.1mm smaller than the width of the valve seat groove, the limiting bulge is convenient to install in the valve seat groove, and the surface of the limiting bulge can be ensured to be tightly attached to the inner side surface of the groove of the valve seat.

In a preferred embodiment of the valve seat removal device, the extension length L of the stop projection is greater than its projection height H.

The extension length L of the limiting protrusion is set to be larger than the protrusion height H, the contact area of the limiting protrusion and the groove can be increased, the distance of the force arm is increased, and therefore the force generated when the dismounting tool rotates to drive the valve seat is saved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic perspective view of a tool for removing and mounting a valve seat according to an embodiment.

FIG. 2 is a schematic view of a fitting structure of a disassembly and assembly tool and a valve seat according to an embodiment.

FIG. 3 is a schematic plan view of an embodiment of a tool for removing a valve seat.

Wherein:

10-main part, 20-limit protrusion, 21-avoidance notch, 30-driving part, 40-valve seat and 50-central valve body.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "middle portion", "top portion", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the term "mounted" or the like is to be construed broadly, e.g., as meaning a fixed connection, a detachable connection, or an integral part; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the utility model provides a disassembly and assembly tool of valve seat, including main part 10 with set up in the spacing arch 20 of main part 10, the extending direction of the recess of spacing arch 20 edge valve seat 40 top surface extends, and with recess plane contact in order to drive valve seat 40 rotatory.

As shown in fig. 2, the process of disassembling and assembling the valve seat 40 by the disassembling and assembling tool is that the limiting protrusion 20 is matched with the groove on the top surface of the valve seat 40, the main body 10 of the disassembling and assembling tool is rotated to drive the limiting protrusion 20 to rotate, and the surface of the limiting protrusion 20 is tightly attached to the inner side surface of the groove on the top surface of the valve seat 40, so as to drive the valve seat 40 to rotate, so that the valve seat 40 is loosened, and finally the valve seat 40 is sucked out from the central valve body 50 by using a magnet, and the striking of an auxiliary tool.

From the above description, it can be seen that the utility model discloses following technological effect is realized:

the body 10 is configured to facilitate control of the disassembly and assembly tool by controlling the body 10 during rotation of the loosened valve seat 40 by a worker, for example, the worker may rotate the body 10 with a wrench. The limiting bulge 20 extends along the extending direction of the groove on the top surface of the valve seat 40, so that the surface of the limiting bulge 20 is tightly attached to the inner side surface of the groove. When the worker rotates the main body 10 of the dismounting tool, the surface of the limiting protrusion 20 is tightly attached to the inner side surface of the groove, so that the valve seat 40 is driven to rotate, the valve seat 40 is loosened, the dismounting is convenient, the valve seat 40 is sucked out from the central valve body 50 by the magnet, the valve seat 40 is prevented from being damaged in the dismounting process, the dismounting efficiency of the valve seat 40 is improved, and the dismounting success rate of the valve seat 40 is also improved.

In a preferred embodiment, the body 10 is integrally formed with a stop lug 20, as shown in figure 1. Because main part 10 and spacing arch 20 integrated into one piece have made things convenient for the manufacturing of assembly and disassembly tools, and in the use, main part 10 is difficult for appearing becoming flexible, stable in structure because of integrated into one piece with spacing arch 20. Of course, it will be understood by those skilled in the art that the main body 10 and the stopper protrusion 20 may be two parts, and may be connected to each other by welding or the like.

In a preferred embodiment, as shown in fig. 2, the main body 10 is a columnar structure, and the position-limiting protrusion 20 is disposed on an end surface of the columnar structure and extends in a straight line. The main body 10 of the dismounting tool is arranged to be of a columnar structure, so that the dismounting tool can be controlled conveniently in the dismounting process, and the operation efficiency can be improved. Because the top of the valve seat 40 is usually provided with a straight groove, the limiting protrusion 20 is arranged on the end surface of the columnar structure and extends in a straight shape, so that the limiting protrusion 20 on the disassembling tool is tightly attached to the inner side surface of the straight groove of the valve seat 40. When the worker controls the operation main body 10 to rotate, the surface of the limiting protrusion 20 is tightly attached to the inner side surface of the straight groove of the valve seat 40, so that the valve seat 40 is driven to rotate to loosen the valve seat 40, the valve seat 40 is sucked out from the central valve body 50 through the magnet, and the success rate of removing the valve seat 40 is improved. Of course, those skilled in the art will understand that the columnar structure may be cylindrical or prismatic, and the shape is convenient to control as long as there is an end face where the limiting protrusion 20 can be disposed.

In a preferred embodiment, as shown in fig. 2, the middle of the stopper protrusion 20 is provided with an escape notch 21. For installing the valve seat 40, the center of the groove of the valve seat 40 is provided with a valve core installation convex block, therefore, the middle part of the limiting bulge 20 is provided with an avoidance notch 21 for avoiding the valve core installation convex block, and the interference of the valve core installation convex block on a dismounting tool is avoided, so that the valve seat 40 is rotated to enable the valve seat 40 to be loosened by better matching of the limiting bulge 20 of the dismounting tool and the groove of the valve seat 40, the valve seat 40 is sucked out from the central valve body 50 through the magnet, and the success rate of dismounting the valve seat 40 is improved. Of course, those skilled in the art will appreciate that the shape and depth of the relief notch 21 depend on the shape and height of the mounting protrusion.

In a preferred embodiment, as shown in fig. 2, the end of the columnar structure far from the position-limiting protrusion 20 is provided with a driving part 30 for driving the columnar structure to rotate. Keep away from spacing protruding 20 one end at the columnar structure and set up drive columnar structure pivoted drive division 30, the setting of drive division 30 has made things convenient for the operation to assembly and disassembly tools, and in operation process, rotation drive division 30 can drive the columnar structure and rotate for spacing protruding 20 and recess cooperation drive disk seat 40 rotate, in order not hard up disk seat 40.

In a preferred embodiment, as shown in fig. 2, the driver 30 is wrapped with a non-slip pad (not shown) to mate with a wrench. Wrapping up the slipmat at drive division 30, helping drive division 30 and spanner complex in-process to increase the frictional force between drive division 30 and the spanner, avoid skidding, thereby the workman rotates drive division 30 with the help of the spanner and drives assembly and disassembly tools and rotate the not hard up of disk seat 40 realization disk seat 40, operates more laborsavingly.

Of course, it will be understood by those skilled in the art that the driving portion 30 may have a prism shape, such as a hexagonal prism shape as shown in fig. 3, a square prism shape, etc. The driving portion 30 is formed in a prism shape, so that when a worker removes the valve seat 40, the worker operates the driving portion by a wrench or a socket tool to rotate the valve seat 40 by the removal tool, thereby loosening the valve seat 40.

In a preferred embodiment, the height H of the stop lug 20 is 2-4mm and the width W of the stop lug is 2-4mm, as shown in FIG. 1.

When the height of the limiting protrusion 20 is lower than 2mm, the limiting protrusion 20 may only be matched with a part (upper part) of the groove of the valve seat 40, and the valve seat 40 is easily shaken in the process of rotating the dismounting tool to loosen the valve seat 40. When spacing arch 20 highly is higher than 4mm, spacing arch 20 partly can not be with the valve seat 40 recess butt, at the in-process that rotates assembly and disassembly tools and rotate valve seat 40, because spacing arch 20 partly can't be with the valve seat 40 butt, and its thickness is less, and intensity is lower, and spacing arch 20 produces the fracture easily, moreover, can cause the main part slope, is unfavorable for dismantling. The height H of the limiting bulge 20 is limited to be 2-4mm, so that the dismantling stability is improved, the strength of the limiting bulge 20 and the valve seat 40 in the groove matching use is enhanced, and the dismantling is more labor-saving.

When the width of limiting protrusion 20 is less than 2mm, it is in clearance fit with the groove of valve seat 40, and during the process of rotating valve seat 40 by rotating the dismounting tool, it is easy to shake. When the width of the limiting protrusion 20 is greater than 4mm, the limiting protrusion 20 is in interference fit with the groove, and the limiting protrusion 20 is difficult to be installed in the groove. The width W of the limiting bulge 20 is limited to be 2-4mm, so that the dismounting stability is improved, and the dismounting is convenient.

Preferably, the height H of the position-limiting protrusion 20 is 3mm, the width W is 3mm, and the width W is 0.1mm smaller than the groove width of the valve seat. The disassembly and assembly tool provided by the embodiment can be used for disassembling and assembling the valve seat of the upper limit valve of the central valve block of the Walvo loader.

In a preferred embodiment, the stop lug 20 extends a length L greater than the projection height H, as shown in fig. 1. The extension length L of the limiting protrusion 20 is set to be larger than the protrusion height H, the contact area of the limiting protrusion 20 and the groove can be increased, the distance of the force arm is increased, and therefore the force generated when the dismounting tool rotates to drive the valve seat 40 is saved.

The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that the technical solution of any one embodiment is combined with the technical solution of one or more other embodiments in the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A seat removal and installation tool, comprising: the main part with set up in the spacing arch of main part, spacing protruding edge the extending direction of the recess of disk seat top surface extends, and with recess plane contact is in order to drive the disk seat is rotatory.

2. The tool for removing a valve seat as set forth in claim 1, wherein said main body is formed integrally with said stopper projection.

3. The tool for disassembling and assembling the valve seat according to claim 1, wherein the main body has a cylindrical structure, and the limiting protrusion is disposed on an end surface of the cylindrical structure and extends in a linear shape.

4. The tool for disassembling and assembling the valve seat according to claim 3, wherein an avoiding notch is formed in the middle of the limiting protrusion.

5. The tool for disassembling and assembling the valve seat according to claim 3, wherein the end of the columnar structure far away from the limiting protrusion is provided with a driving part for driving the columnar structure to rotate.

6. A valve seat assembly and disassembly tool as claimed in claim 5, wherein the driving portion is wrapped with a non-slip pad to engage with a wrench.

7. A valve seat removal tool according to claim 5, wherein the driving portion is prism-shaped.

8. The tool for disassembling and assembling the valve seat according to claim 1, wherein the height H of the protrusion of the limiting protrusion is 2-4mm, and the width W of the limiting protrusion is 2-4 mm.

9. The tool for removing a valve seat according to claim 8, wherein the width W of the stopper protrusion is smaller than the width W of the groove of the valve seat by 0.1 mm.

10. The tool for disassembling and assembling the valve seat according to claim 1, wherein the extension length L of the limiting protrusion is greater than the protrusion height H.