A small valve dismounting and assembling tool for disc separator

Abstract

This utility model discloses a tooling assembly and disassembly assembly for a small valve in a disc separator. The tool handle structure includes a central rod and a handle. The handle is fixedly mounted at one end of the central rod, and the other end of the central rod has at least one external thread. The first external thread mates with the threaded portion on the small valve assembly to form a connection. The auxiliary sleeve structure includes a sleeve component that is fitted onto the central rod. The end of the sleeve component has a pin that mates with the tool hole. The sleeve component extends from the valve cavity opening to the outside of the radial through hole. After the pin is inserted into the tool hole, the sleeve component is configured to rotate synchronously with the central rod. The tooling includes a valve seat disassembly tooling and a valve core disassembly tooling. The end of the central rod has a replaceable combination screw structure, which can be replaced with the corresponding screw structure for different specifications and types of small valve components. The design of the core rod inside the central rod allows it to extend different end threaded sections through rotation and sliding to adapt to different valve core internal threads.

Description

Technical Field

[0001] This utility model relates to the technical field of disc separators with small valve structures, and specifically to a tooling for disassembling and assembling the small valve of a disc separator. Background Technology

[0002] A small valve assembly / disassembly tool is a specialized tool for disassembling and assembling small valve (assembly) components in a disc separator. Small valve disc separators are now widely used in the field of land-based disc separators. For example, prior art application number 201721015346.4 discloses a sealing structure for a disc separator valve; its structure utilizes the movement of the valve core in the small valve (assembly) to achieve fully hydraulic slag discharge, with hydraulic water controlling the opening and sealing of the drum by controlling the opening and sealing of the valve core. The small valve assembly / disassembly tool is specifically designed to disassemble and assemble small valves (assemblies) to ensure smooth operation during maintenance or parts replacement.

[0003] The development and application of land-based disc separators are trending towards larger processing capacities and larger sizes. This is particularly true in the land-based market, which demands high processing capacity but has low requirements for size and floor space. In recent years, the outer diameter of the drum in land-based disc separators has reached a maximum of 800mm. The large size and weight of the drum make manual disassembly and assembly difficult. The small valve structure solves this problem. Traditional components such as sliders, slider seats, and sealing rings are no longer used in the drum assembly. Instead, a small valve assembly that enables sealing and opening is installed on the drum body, meeting the opening requirements for drum separation. For the sealing action, if the drum does not perform the sealing opening action, only the small valve needs to be disassembled and installed. Since the small valve is installed at the bottom of the drum, in the middle of the machine body, a tool hole is designed in the middle of the machine body. Open this hole, insert the tool, and remove the small valve assembly. Since the small valve assembly consists of valve core, valve seat, sealing ring, and other parts, the small valve assembly must first be removed from the drum during disassembly and assembly. Secondly, ensure that the parts in the assembly do not fall to the bottom of the machine body, because it is impossible to remove the fallen parts from the bottom of the machine body. The only way is to disassemble the entire drum assembly, which will be time-consuming and labor-intensive.

[0004] In view of the above, it is necessary to propose a small valve assembly and disassembly tool and its usage method to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects in the existing technology and provide a tooling for disassembling and assembling the small valve of a disc separator.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A tooling for assembling and disassembling a small valve in a disc separator includes a tool handle structure and an auxiliary sleeve structure. The tool handle structure includes a central rod and a handle. The handle is fixedly installed at one end of the central rod, and the other end of the central rod has at least one external thread. The first external thread mates with a threaded portion on the small valve assembly to form a connection. The auxiliary sleeve structure includes a sleeve component that is fitted onto the central rod. The end of the sleeve component has a pin that mates with a tool hole. During assembly, the sleeve component extends from the valve cavity opening to the outside of the radial through hole. After the pin is inserted into the tool hole, the sleeve component is configured to rotate synchronously with the central rod.

[0008] Furthermore, this tooling includes a valve seat disassembly tooling and a valve core disassembly tooling, both of which are equipped with tool handle structures.

[0009] The first external thread on the surface of the center rod of the valve seat disassembly fixture extends from the end of the center rod to the outside of the radial through hole; the end of the center rod of the valve core disassembly fixture is connected to a short rod that matches the diameter of the balance hole of the valve core assembly, and the short rod is provided with a first external thread that is screwed into the internal thread on the wall of the balance hole of the valve core assembly.

[0010] The valve seat disassembly fixture also includes a tightening nut, which is screwed onto the first external thread. The tightening nut pushes the auxiliary sleeve structure to move toward the valve cavity side and limits its movement in the opposite direction.

[0011] Furthermore, the center rod is provided with a core rod inside, the first external thread end of which is engaged with the countersunk hole internal thread, the core rod is rotatably connected to the center rod, and the core rod has a degree of freedom of axial sliding relative to the center rod. The degree of freedom of axial sliding of the core rod relative to the center rod causes its end to extend out of the end of the center rod, and its extended end forms an end thread section that is engaged with the valve core internal thread. The other end of the core rod extends out from the other end of the center rod and is provided with a crank handle.

[0012] Furthermore, the end of the central rod is provided with a replaceable combined screw structure; the combined screw structure includes a locking end connected to the central rod and an end screw portion screwed to the valve seat assembly.

[0013] Furthermore, the combined screw structure includes a first radial contact surface at its connecting end, and a second radial contact surface at the end of the central rod that mates with the first radial contact surface; the connecting end of the combined screw structure and the end of the central rod are spliced ​​together to form a spliced ​​cylinder, the outer surface of the spliced ​​cylinder is provided with splicing threads, and a threaded sleeve is screwed into the splicing threads.

[0014] Furthermore, the center rod is provided with a connecting pipe inside, which extends to the center of the end of the center rod. In use, the connecting pipe is aligned with and connected to the balance hole, and the medium is injected into the valve cavity from the outer end of the connecting pipe to assist in the disassembly of the valve core assembly.

[0015] Furthermore, an inertial hammer assembly is screwed to one end of the central rod on the outside of the drum body, such that the inertial hammer assembly includes a slide rod and a hammer sleeve. The slide rod is arranged along the axis of the central rod, and the hammer sleeve is slidably sleeved on the slide rod.

[0016] Furthermore, it also includes an anti-falling cylinder structure, which is inserted into and connected to the valve cavity through a radial through hole, and a cylindrical pipe is erected between the valve cavity opening and the inner wall of the slag discharge cavity so that the valve cavity opening leads directly to the outside of the radial through hole.

[0017] The advantages and beneficial effects of this utility model are as follows:

[0018] 1. This tooling is highly efficient and convenient, reducing the difficulty of disassembly and assembly. The tooling features a tool handle structure and an auxiliary sleeve structure. The external thread of the tool handle structure can connect with the threaded part of the small valve assembly. The pin of the auxiliary sleeve structure, after being inserted into the tool hole, can rotate synchronously with the central rod. This fit allows for more precise force transmission during disassembly and assembly, effectively reducing the operational difficulty of disassembling and assembling the small valve. Simultaneously, the design of the inertial hammer assembly, through the inertial impact force generated by the hammer sliding on the slide rod, can assist in disassembling tighter components, significantly improving disassembly and assembly efficiency and saving labor and time costs.

[0019] 2. The tooling includes valve seat disassembly tooling and valve core disassembly tooling, and the end of the central rod is equipped with a replaceable combination screw structure. For small valve components of different specifications and types, the corresponding screw structure can be replaced to achieve precise matching. In addition, the design of the internal core rod of the central rod allows it to extend different end threaded sections through rotation and sliding to adapt to different valve core internal threads, greatly expanding the scope of application of the tooling and meeting the disassembly and assembly needs of various disc separator small valves.

[0020] 3. The anti-fall cylinder structure features a cylindrical pipe installed between the valve cavity opening and the inner wall of the slag discharge chamber. This prevents small valve components from accidentally falling into the drum during disassembly and becoming difficult to remove, ensuring operational safety and reducing the risk of component loss. The design of the connecting pipe inside the central rod allows for the injection of media into the valve cavity to assist in disassembly, preventing damage to components caused by forced disassembly. This optimizes the working environment, extends the service life of small valve components, and reduces equipment maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a small valve assembly for a disc separator according to this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a small valve assembly and disassembly tooling for a disc separator according to this utility model;

[0023] Figure 3 This is a schematic diagram of the valve seat assembly in this utility model.

[0024] Figure 4 This is a schematic diagram of the valve core assembly in this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0026] Figure 6 This is a structural schematic diagram of the third embodiment of the present utility model;

[0027] Figure 7 This is a structural schematic diagram of the fourth embodiment of the present invention;

[0028] Figure 8 This is a structural schematic diagram of the sixth embodiment of the present utility model;

[0029] Figure 9 This is one of the structural schematic diagrams of the fifth embodiment of this utility model;

[0030] Figure 10 This is the second structural schematic diagram of the fifth embodiment of this utility model;

[0031] In the diagram: 1. Drum body; 2. Small valve assembly; 3. Valve cavity; 4. Mounting internal thread; 5. Valve seat assembly; 6. Valve core assembly; 7. Countersunk internal thread; 8. Balance hole; 9. Tool hole; 10. Valve core internal thread; 11. Slag discharge cavity; 12. Radial through hole; 13. Through hole plug structure; 14. Positioning threaded hole; 15. Outer sealing disc; 16. Connecting rod; 17. Tool handle structure; 18. Auxiliary sleeve structure; 19. Center rod; 20. Handle; 21. First external thread; 2 2. Sleeve assembly; 23. Pin rod; 24. Valve seat disassembly fixture; 25. Valve core disassembly fixture; 26. Short rod; 27. Tightening nut; 28. Core rod; 29. ​​End threaded section; 30. Handle; 31. Combined screw structure; 32. Locking end; 33. End screw section; 34. Radial mating surface; 35. Assembled cylinder; 36. Assembled thread; 37. Threaded sleeve; 38. Connecting pipe; 39. Slide rod; 40. Punch sleeve; 41. Cylindrical pipe; 42. Flexible washer. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described below with reference to examples. These examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0033] like Figure 1As shown, a valve cavity 3 for mounting a small valve assembly 2 is provided on one side of the lower part of the drum body 1. The inner wall of the opening end of the valve cavity 3 is provided with an internal thread 4 for mounting the small valve assembly 2. The small valve assembly 2 includes a valve seat assembly 5 and a valve core assembly 6. The valve core assembly 6 is axially movable and connected to the valve seat assembly 5. One end of the valve seat assembly 5 is provided with an external thread for mounting, which is screwed into the internal thread 4 to complete the mounting and positioning of the entire small valve assembly on the drum body 1. The axial movement of the valve core assembly 6 within the valve cavity 3 changes the position of the drum. The hydraulic water flow direction inside body 1 controls the opening or closing of the disc centrifuge. The valve seat assembly 5 has an outer countersunk hole along the axis on its outer end face. The inner wall of the countersunk hole has an internal thread 7. The small valve assembly 2 has a balance hole 8 along the axis. The balance hole 8 connects from the bottom surface of the countersunk hole to the valve cavity 3. The outer end face of the valve seat assembly 5 also has a tool hole 9. The tool hole 9 is used to cooperate with the tool to screw the small valve assembly 2. The balance hole 8 on the valve core assembly 6 also has an internal thread on its inner wall, specifically a valve core internal thread 10.

[0034] A slag discharge chamber 11 is also provided on the outer periphery of the drum body 1. A radial through hole 12 is provided in the slag discharge chamber 11 at a position corresponding to the valve chamber 3. Figure 1 , 3 As shown, a through-hole plug structure 13 is provided to cooperate with the radial through-hole 12. This through-hole plug structure 13 is an assembly. When installed on the radial through-hole 12, it is used to seal the through-hole, so that the slag discharge chamber 11 does not leak from either the inner or outer wall at this location. Another function is to connect to the valve chamber 3 opening inside the drum body 1, facilitating the direct disassembly of the small valve assembly 2 inside without disassembling the drum body 1. Figure 1 , 3 As shown in Figure 4, the radial through hole 12 corresponds to the slag discharge chamber 11, which is divided into an inner wall and an outer wall. A positioning threaded hole 14 is provided on the outer wall. The through hole plug structure 13 has an inner sealing disc for sealing the inner wall hole and an outer sealing disc 15 for sealing the outer wall hole. The inner and outer sealing discs 15 are connected by a connecting rod 16 to form a whole. The bolt passes through the outer sealing disc 15 and is screwed into the positioning threaded hole 14, thereby fixing the through hole plug structure 13 in the radial through hole 12. It can be understood that necessary sealing gaskets and other structures are also provided between the radial through hole 12 and the through hole plug structure 13 to improve the sealing effect.

[0035] Example 1:

[0036] In this embodiment, the small valve assembly / disassembly fixture is divided into a valve seat disassembly fixture 24 and a valve core disassembly fixture 25, as follows: Figure 2As shown, the valve seat disassembly and assembly fixture consists of four parts: a handle, a central rod 19, a tightening nut 27, and a sleeve assembly 22. In this embodiment, there are two pins 23 at the top of the sleeve, and the diameter and position of the pins 23 correspond to the tool holes 9 on the valve seat assembly 5. The overall structure of the valve core disassembly fixture 25 is similar to the tool handle structure 17 of the valve seat disassembly fixture 24, except that a short rod 26 is provided at the end of its central rod 19, and an external thread is formed on its surface to match the internal thread 10 of the valve core.

[0037] The handle of the valve seat disassembly fixture 24 is welded together with the center rod 19. The center rod 19 is designed with a long external thread - namely the first external thread 21, the length of which extends from the end of the center rod 19 to the outside of the slag discharge chamber 11. A tightening nut 27 and a sleeve are installed on the center rod 19 by means of thread fastening. At the same time, the first external thread 21 is also paired with the countersunk internal thread 7 of the valve seat.

[0038] The valve core disassembly fixture 25 consists of a handle and a center rod 19. The center rod 19 has an external thread at its end that corresponds to the first external thread 21 of the valve core disassembly fixture 25. This thread is paired with the internal thread 10 of the valve core. If the handle is not welded but also detachable, the valve seat disassembly fixture 24 and the valve core disassembly fixture 25 can share a handle, which reduces the footprint and increases the degree of parts standardization.

[0039] Furthermore, the valve seat disassembly fixture 24 is tightened, the nut 27 is tightened, and the sleeve is installed onto the central rod 19. During use, the end of the first external thread 21 is screwed into the countersunk internal thread 7 hole through a threaded connection, thereby forming a single connection between the central rod 19 and the small valve assembly 2, which facilitates pulling the small valve outward. Furthermore, the sleeve component 22 is slidably sleeved on the central rod 19 and restricts its rotation relative to the central rod 19. Specifically, the side of the central rod 19 is set on a lateral cutting plane parallel to the axis, and the through hole of the sleeve component 22 on the central rod 19 is formed into a waist-shaped hole similar to the cross-section of the central rod 19. The plane of the waist hole fits with the lateral cutting plane, thereby restricting the rotation of the sleeve component 22 relative to the central rod 19. In actual use, when the central rod 19 rotates, the sleeve component 22 can be driven to rotate together through the cooperation of the lateral cutting plane.

[0040] In use, first screw the thread at the end of the center rod 19 into the countersunk internal thread 7, then push the sleeve component 22 so that the pin 23 at its end is inserted into the pin tool hole 9 on the valve seat. Then rotate and tighten the nut 27 to hold the sleeve component 22 against it. Then rotate the handle 20 to rotate and disassemble the valve seat assembly 5 from the valve cavity 3, and then pull it out. The valve core disassembly tool 25 consists of a handle and a center rod 19. The center rod 19 has an external thread, which is paired with the valve core internal thread 10. During the first disassembly process, if the valve core assembly 6 cannot be disassembled from the drum body 1 synchronously with the valve seat assembly 5, the valve core disassembly tool 25 can be used again to screw its bottom thread into the valve core internal thread 10 hole, tighten it, and then pull out the valve core assembly 6.

[0041] Example 2:

[0042] In the aforementioned embodiments, if the valve core assembly 6 and the valve seat assembly 5 become detached from each other, a special valve core disassembly tool 25 must be used for a second disassembly. This operation is quite complicated. Furthermore, during the second disassembly, since the valve seat assembly 5 is removed first, the valve core assembly 6 may experience shaft deflection, causing the valve core internal thread 10 to deviate slightly from the axis of the valve cavity 3. If the disassembly tool is used at this time, the first external thread 21 on the short rod 26 at its end may be difficult to screw into the valve core internal thread 10, thus making removal difficult.

[0043] In this embodiment, the valve seat disassembly fixture 24 and the valve core disassembly fixture 25 from Embodiment 1 are combined. Specifically, as shown in the figure... Figure 5 As shown, the center rod 19 is provided with a core rod 28 inside. The end of the first external thread 21 is engaged with the countersunk hole internal thread 7. In this embodiment, the first external thread 21 is the same as the thread on the center rod 19 in embodiment one. Both are long external threads, the end of which is used to screw into the countersunk hole internal thread 7. The middle part of the thread is fitted with a sleeve component 22 and a tightening nut 27 (not shown in the figure). It can be understood that the connection method between the center rod 19 and the valve seat assembly 5 is the same as in embodiment one.

[0044] Furthermore, the core rod 28 is rotatably connected to the center rod 19, and the core rod 28 has a degree of freedom of axial sliding relative to the center rod 19. In actual use, after the center rod 19 is connected to the valve seat assembly 5, the center rod 19 is pushed forward so that its end passes into the balance hole 8. The axial sliding freedom of the core rod 28 relative to the center rod 19 allows its end to extend out of the end of the center rod 19 and be inserted into the balance hole 8. It can be understood that the balance hole 8 is divided into two sections, one located in the valve seat assembly 5 and the other... A section is located on the valve core assembly 6, and the two are axially connected. The inner wall of the balance hole 8 on the valve core assembly 6 has a valve core internal thread 10. The protruding end of the core rod 28 forms an end thread section 29 that mates with the valve core internal thread 10. The other end of the core rod 28 extends from the other end of the center rod 19 and is provided with a crank handle 30. After pushing the valve core forward a certain distance, the end thread section 29 contacts the valve core internal thread 10. Then, the crank handle 30 is turned so that the end thread section 29 is screwed into the valve core internal thread 10, forming a threaded connection. This embodiment achieves a two-step connection effect: the first step is the connection between the central rod 19 and the valve seat assembly 5, and the second step is the insertion of the core rod 28 and its connection with the valve core assembly 6. Since the valve seat assembly 5 has not yet been removed, the axial direction of the valve core assembly 6 is held in a fixed position, so the core rod 28 can be easily screwed onto the valve core assembly 6. Then, the valve seat assembly 5 is rotated and disassembled by rotating the handle 20. Since the core rod 28 can rotate relative to the central rod 19 and has a certain degree of axial sliding freedom, the valve core assembly 6 is not affected during the rotation and disassembly of the valve seat assembly by the central rod 19. After the valve seat assembly 5 is disengaged from the mounting internal thread 4, the central rod 19 can be pulled to pull the valve seat assembly 5 outward. Since the axial sliding freedom of the valve core assembly 6 is limited, when the central rod 19 is pulled outward to its end, it creates a secondary pulling effect on the valve core assembly 6. In this way, a single tooling can be used to disassemble in steps and pull out the valve seat assembly 5 and the valve core assembly 6 together.

[0045] Example 3:

[0046] Both of the embodiments involve pulling out the small valve assembly 2. In the actual disassembly process, the small valve assembly 2 is usually stuck and cannot complete the corresponding movement, so it is necessary to disassemble, clean or replace it. Usually, during disassembly, it is difficult to pull out the small valve assembly 2, especially the valve core assembly 6.

[0047] As an improvement, an inertial impact hammer assembly is screwed to one end of the central rod 19 on the outside of the drum body 1, such as... Figure 6As shown, the inertial hammer assembly includes a slide rod 39 and a hammer sleeve 40. The slide rod 39 is arranged along the axis of the central rod 19, and the hammer sleeve 40 is slidably sleeved on the slide rod 39. An external thread is machined on one end of the outer side of the central rod 19. One end of the slide rod 39 of the inertial hammer assembly is provided with a threaded sleeve 37, and the other end is provided with a baffle. The threaded sleeve 37 can be quickly screwed into the external thread for installation. When it is necessary to pull the small valve assembly 2 outward, the hammer sleeve 40 can be repeatedly moved on the slide rod 39 and hit the baffle to apply a pulling force to the small valve assembly 2 and pull it out relatively easily.

[0048] It is understandable that the position of the crank handle 30 in this embodiment interferes with that in Embodiment 2. As a solution, the core rod 28 is designed as a two-section structure. The two sections of the core rod 28 are connected by a triangular rod and a triangular sleeve. The crank handle 30 and one section of the core rod 28 can be pulled out from the central rod 19. After the core rod 28 is connected to the valve core assembly 6, the crank handle 30 can be pulled out, freeing up the outer end of the central rod 19 for the installation of the inertial hammer assembly. Then, through the continuous impact of the hammer sleeve 40, the small valve assembly 2 can be easily removed.

[0049] Example 4:

[0050] As an improvement to Embodiment 1, since the valve core assembly 6 may detach from the valve seat assembly 5 during disassembly, thus requiring a second disassembly process, this embodiment is an improvement based solely on the valve seat disassembly fixture 24. At the same time, by using the balance hole 8, it is possible to disassemble two components at once.

[0051] Specifically, such as Figure 7 As shown, the central rod 19 has a connecting pipe 38 inside, which extends to the center of the end of the central rod 19. In use, the connecting pipe 38 is aligned and connected to the balance hole 8. Medium is injected into the valve cavity 3 from the outer end of the connecting pipe 38, assisting in the disassembly of the valve core assembly 6. Since the balance hole 8 penetrates the small valve assembly 2 and connects to the bottom space inside the valve cavity 3, and both the valve seat assembly 5 and the valve core assembly 6 have sealing rings on their outer circumferences, medium can be directly injected into the valve cavity 3 through the connection between the connecting pipe 38 and the balance hole 8 (e.g., ...). Figure 4 (as shown in the diagram) In actual use, the medium can be either gas or liquid; liquid is preferred, and pressurized liquid is more effective. Specifically, after the center rod 19 is screwed and fixed to the valve seat assembly 5, rotate the handle 20 to rotate the valve seat assembly 5 out. Note that the valve core assembly 6 may not have moved at this time. Then, through… Figure 7One end of the central connecting pipe 38 is connected to a hydraulic source, injecting pressurized fluid into the valve chamber 3. Under the action of hydraulic pressure, the pressure pushes the valve core assembly 6 to move outward. It can be understood that when the valve core assembly 6 is pushed out of the valve chamber 3, the pressure will be released instantly from the opening of the valve chamber 3, so that the fluid stops pushing. At this time, the valve core assembly 6 is also pushed out of the valve chamber 3, thus completing the assisted disassembly of the hydraulic medium. This embodiment can achieve the effect of disassembling two components at one time with relatively simple tooling and the pushing action of the hydraulic medium.

[0052] Example 5:

[0053] As another improvement to Embodiment 1, the end of the central rod 19 is provided with a replaceable combined screw structure 31. The combined screw structure 31 includes a locking end 32 connected to the central rod 19 and an end screw portion 33 screwed to the valve seat assembly 5. Since the connection parts between the small valve assembly 2 and this tooling are the countersunk internal thread 7 and the valve core internal thread 10, respectively, this embodiment provides a replaceable combined screw structure 31 at the end of the central rod 19. Due to its replaceable characteristic, this embodiment can improve versatility. Even when facing different small valve assemblies 2, it is possible to achieve matching by replacing the combined screw structure 31. Similarly, when facing the same small valve assembly 2 with different specifications of countersunk internal thread 7 and valve core internal thread 10, it is only necessary to replace the corresponding combined screw structure 31.

[0054] Specifically, such as Figure 9 As shown, the combined screw structure 31 includes a first radial contact surface 34 at its connecting end, and a second radial contact surface 34 at the end of the central rod 19 that mates with the first radial contact surface 34. It can be understood that the connecting end of the combined screw structure 31 and the end of the central rod 19 can be designed as semi-cylindrical structures, with the two semi-cylinders contacting each other through the side planes (first radial contact surface 34, second radial contact surface 34). This allows the combined screw structure 31 and the central rod 19 to form a circumferential lock, meaning that when the central rod 19 rotates, the combined screw structure... The structure 31 rotates simultaneously; it is understood that, in addition to the semi-cylindrical structure, it can also be designed as a cross-shaped or straight-line interlocking structure (similar to a screwdriver); furthermore, the connecting end of the combined screw structure 31 is spliced ​​with the end of the central rod 19 to form a splicing cylinder 35. The splicing cylinder 35 has splicing threads 36 on its outer surface, and a threaded sleeve 37 is screwed into the splicing threads 36. In use, when the combined screw structure 31 is spliced ​​with the central rod 19, the threaded sleeve 37 is rotated to the splicing part of the two, thereby axially fixing the two and facilitating pulling during disassembly.

[0055] Example 6:

[0056] To prevent parts from falling to the bottom of the machine body and thus avoiding situations where parts become stuck and cannot be retrieved, and to avoid complete disassembly of the entire drum assembly, an improvement is made by including an anti-fall-off cylinder structure. This structure is inserted into and connected to the valve chamber 3 via a radial through-hole 12, forming a cylindrical pipe 41 between the opening of the valve chamber 3 and the inner wall of the slag discharge chamber 11, allowing the opening of the valve chamber 3 to directly connect to the outside of the radial through-hole 12. Specifically, as shown... Figure 8 As shown, this embodiment also includes an outer sealing disc 15. The outer sealing disc 15 in this embodiment is also provided with holes corresponding to the positioning threaded holes 14. It can be fixed on the radial through hole 12 by inserting a screw. The inner ring of the outer sealing disc 15 is provided with internal threads, while the outer wall of the cylindrical pipe 41 is provided with external threads. After the outer sealing disc 15 is positioned, the cylindrical pipe 41 can be rotated to move it inward, and finally make its end contact the outer periphery of the opening end of the valve cavity 3. Furthermore, a flexible washer 42 can be provided at the end of the cylindrical pipe 41 to achieve a certain curvature adaptability and enhance the sealing effect. This embodiment can be used in conjunction with the aforementioned embodiments to prevent parts from falling into the bottom gap, and the use effect is better.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A disc separator small valve dismounting and assembling tooling, characterized in that, The device includes a tool handle structure and an auxiliary sleeve structure. The tool handle structure includes a central rod and a handle. A handle is provided at one end of the central rod, and a first external thread is provided at the other end of the central rod. The first external thread mates with a threaded portion on a small valve assembly to form a connection. The auxiliary sleeve structure includes a sleeve component that is fitted onto the central rod. The end of the sleeve component is provided with a pin that mates with a tool hole. During assembly, the sleeve component extends from the valve cavity opening to the outside of the radial through hole. After the pin is inserted into the tool hole, the sleeve component is configured to rotate synchronously with the central rod.

2. The tooling for disassembling and assembling the small valve of a disc separator according to claim 1, characterized in that, This tooling includes a valve seat disassembly tooling and a valve core disassembly tooling, both of which are equipped with tool handle structures. The first external thread on the surface of the center rod of the valve seat disassembly fixture extends from the end of the center rod to the outside of the radial through hole; the end of the center rod of the valve core disassembly fixture is connected to a short rod that matches the diameter of the balance hole of the valve core assembly, and the short rod is provided with a first external thread that is screwed into the internal thread on the wall of the balance hole of the valve core assembly. The valve seat disassembly fixture also includes a tightening nut, which is screwed onto the first external thread. The tightening nut pushes the auxiliary sleeve structure to move toward the valve cavity side and limits its movement in the opposite direction.

3. The disc type separator small valve dismounting and assembling combined tool according to claim 1, characterized in that, The center rod is equipped with a core rod inside. The first external thread end is engaged with the countersunk hole internal thread. The core rod is rotatably connected to the center rod, and the core rod has a degree of freedom of axial sliding relative to the center rod. The axial sliding freedom of the core rod relative to the center rod causes its end to extend out of the center rod end. Its extended end forms an end thread section that engages with the valve core internal thread. The other end of the core rod extends out from the other end of the center rod and is equipped with a crank handle.

4. The disc type separator small valve dismounting and assembling combined tool according to claim 1, characterized in that, The end of the central rod is provided with a replaceable combined screw structure; the combined screw structure includes a locking end connected to the central rod and an end screw portion screwed to the valve seat assembly.

5. A disc separator small valve assembly tool according to claim 4, wherein, The combined screw structure includes a first radial contact surface at its connecting end and a second radial contact surface at the end of the central rod that mates with the first radial contact surface. The connecting end of the combined screw structure and the end of the central rod are spliced ​​together to form a spliced ​​cylinder. The outer surface of the spliced ​​cylinder is provided with splicing threads, and a threaded sleeve is screwed into the splicing threads.

6. The small valve dismounting and assembling tool of a disc separator according to claim 1, characterized in that, The central rod is equipped with a connecting pipe that extends to the center of the end of the central rod. In use, the connecting pipe is aligned with and connected to the balance hole. The medium is injected into the valve cavity from the outer end of the connecting pipe to assist in the disassembly of the valve core assembly.

7. The small valve dismounting and assembling tool of a disc separator according to claim 1, characterized in that, The inertial hammer assembly is screwed to one end of the central rod on the outside of the drum body. The inertial hammer assembly includes a slide rod and a hammer sleeve. The slide rod is arranged along the axis of the central rod, and the hammer sleeve is slidably sleeved on the slide rod.

8. A small valve dismounting and assembling tool for a disc separator according to any one of claims 1 - 7, characterized in that, It also includes an anti-falling cylinder structure, which is inserted into and connected to the valve cavity through a radial through hole, and a cylindrical pipe is erected between the valve cavity opening and the inner wall of the slag discharge cavity so that the valve cavity opening leads directly to the outside of the radial through hole.

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