CN220230919U

CN220230919U - Spring force tester for control valve

Info

Publication number: CN220230919U
Application number: CN202321386138.0U
Authority: CN
Inventors: 李松杰
Original assignee: Sichuan Longmaxi Energy Technology Co ltd
Current assignee: Sichuan Longmaxi Energy Technology Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-12-22
Anticipated expiration: 2033-06-02

Abstract

The utility model provides a spring force tester for a control valve, and belongs to the technical field of spring force testing instruments. Including the tester main part, two sets of spring coupling platform that are mirror symmetry each other are installed along vertical direction slidable mounting in the tester main part, are connected with mounting platform through pressure sensor on the spring coupling platform, are provided with the coupling assembling who is used for connecting the spring tip on the mounting platform, and coupling assembling includes joint cover and joint core, is provided with the spacing subassembly that is used for restricting joint core gliding on the mounting platform. Through adopting the joint cover of round platform shape to cooperate with the joint core, after going into the joint inslot on the joint cover with the spring card that awaits measuring, rotate the screw rod, make the joint core remove to the joint inslot, press the spring that awaits measuring to warp to joint tooth in the joint groove also presses the impression with the spring surface that awaits measuring, can prevent effectively that the spring from following its wire spiral direction slip trip in the test process, has the effect to spring coupling reliability on the improvement tester.

Description

Spring force tester for control valve

Technical Field

The utility model relates to the technical field of spring elasticity testing instruments, in particular to a control valve spring elasticity tester.

Background

The fatigue characteristic of the spring is an important index of the spring, and is a fracture phenomenon generated after the spring is extruded and deformed, and cracks are generated after the metal is deformed, which is generally small and even can be ignored sometimes, but the cracks are increased and the crack gap is increased due to frequent deformation, so that the spring is finally fatigued. The control valve is a valve body for controlling the on-off of a pipeline, and mainly comprises a valve body assembly and an actuating mechanism assembly, wherein in the actuating mechanism assembly of the control valve, a spring is used as a power piece for resetting the valve clack and pushing the valve clack to keep breaking a channel in the valve body, and is an extremely important part of the control valve.

When the existing elastic force tester detects the elastic force and other performances of the spring, usually, hanging rings are machined at two ends of the spring, and then the two ends of the spring are respectively hung on connecting hooks on the tester, and the two connecting hooks are driven to be far away from each other so as to stretch the spring and detect the elastic force of the spring.

However, the length, diameter and wire diameter of the spring in the control valve of different models are different, the difficulty of processing the hanging ring is different for the springs of different specifications, and the hooking stability between the hanging ring and the hook can be different in unhooking risk due to different regulations of the spring when the springs are tested, so that the elastic force tester capable of stably connecting the springs is needed to be provided.

Disclosure of Invention

In view of the above, the present utility model provides a control valve spring force tester.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a control valve spring elasticity tester, including the tester main part, two sets of spring coupling platform that are mirror symmetry each other are installed along vertical direction slidable mounting in the tester main part, be connected with mounting platform through pressure sensor on the spring coupling platform, be provided with the coupling assembling who is used for connecting the spring tip on the mounting platform, coupling assembling includes joint cover and joint core, the one end and the mounting platform of joint cover are connected, the round platform-shaped joint groove that supplies the spring tip to stretch into has been seted up to the other end, joint core and joint groove adaptation, joint core can be along the relative coaxial slip of joint cover axial, be provided with the spacing subassembly that is used for restricting joint core gliding on the mounting platform.

Further, the limiting assembly comprises a screw rod and a threaded sleeve, the mounting support is fixedly arranged on one surface, far away from the clamping sleeve, of the mounting platform, the threaded sleeve is fixedly connected with the mounting support, the screw rod is in threaded connection with the threaded sleeve, one end of the screw rod is coaxial with the clamping core, and the other end of the screw rod is connected with a handle.

Further, the clamping sleeve is detachably connected with the mounting platform, and the clamping core is detachably connected with the screw rod.

Further, the mounting seats are fixedly arranged on the mutually opposite planes of the two mounting platforms, the mounting seats are provided with mounting grooves, connecting cylinders with the same mounting size are coaxially and fixedly arranged on the clamping sleeves, mounting holes are formed in the side walls of the connecting cylinders in a penetrating mode, supporting balls are movably mounted in the mounting holes, a plurality of supporting balls are uniformly arranged at intervals along the circumferential direction of the connecting cylinders, the wall thickness of the connecting cylinders is smaller than the diameter of the supporting balls, annular grooves matched with the supporting balls are formed in the circumferential direction of the mounting grooves on the inner walls of the mounting grooves, and supporting rods matched with the inner diameters of the connecting cylinders are coaxially and fixedly arranged on the clamping cores.

Further, the coaxial fixedly connected with spliced pole of the one end that the joint core is close to the screw rod, the one end that the screw rod is close to the joint core coaxial set up with spliced pole adaptation's spliced groove, all run through on screw rod and the spliced pole and set up the pinhole of coaxial alignment when spliced pole and spliced groove are pegged graft, screw rod and spliced pole are through lining up in the pinhole and are inserted the bolt in order to fix.

Further, the inner wall of the clamping groove is provided with clamping teeth along a bus of the inner wall of the clamping groove, and the clamping teeth are uniformly spaced along the circumferential direction of the clamping groove.

The beneficial effects of the utility model are as follows: through adopting the joint cover of round platform shape to cooperate with the joint core, after going into the joint inslot on the joint cover with the spring card that awaits measuring, rotate the screw rod, make the joint core remove to the joint inslot, press the spring that awaits measuring to warp to joint tooth in the joint groove also presses the impression with the spring surface that awaits measuring, can prevent effectively that the spring from following its wire spiral direction slip trip in the test process, improves the connection reliability to the spring on the tester.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a spring force tester according to an embodiment of the present application.

Fig. 2 is a schematic diagram of the overall structure of the spring connection platform, the mounting platform and the connection assembly according to the embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of the structure at A-A in fig. 2.

1, a tester main body; 2. the spring is connected with the platform; 21. a pressure sensor; 3. a mounting platform; 31. a mounting bracket; 32. a mounting base; 33. a mounting groove; 34. an annular groove; 4. a clamping sleeve; 41. a clamping groove; 42. a connecting cylinder; 43. a mounting hole; 44. supporting the balls; 45. clamping teeth; 5. a clamping core; 51. a support rod; 52. a plug-in column; 53. a plug-in groove; 54. a guide slope; 6. a limit component; 61. a screw; 62. a threaded sleeve; 63. a handle; 64. a collision nut; 7. a plug pin; 71. a pin hole; 8. a bidirectional screw.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

The embodiment of the application discloses control valve spring elasticity tester, refer to fig. 1, including tester main part 1, integrative being fixed with the guide rail that is parallel to each other on the tester main part 1, parallel mount has two sets of spring coupling platform 2 between the guide rail, and two sets of spring coupling platform 2 are mirror symmetry, and two sets of spring coupling platform 2 all are with the vertical sliding connection of guide rail. The tester main body 1 is also vertically and rotatably provided with a bidirectional screw 861, a driving motor for driving the bidirectional screw 861 to rotate is arranged in the tester main body 1, and two groups of spring connection platforms 2 are respectively in threaded connection with two threaded sections of the bidirectional screw 861 with opposite screwing directions.

Each spring connecting platform 2 is provided with a mounting platform 3 in parallel, a pressure sensor 21 is connected between the spring connecting platform 2 and the mounting platform 3, and a connecting component for connecting the ends of the springs is arranged on the opposite surfaces of the two mounting platforms 3. The two ends of the spring to be tested are fixedly connected through the connecting components on the two mounting platforms 3, the two spring connecting platforms 2 are far away from each other by the rotation of the two-way screw 861, the spring to be tested is elongated, and the tension change of the spring is detected in real time by the pressure sensor 21.

Referring to fig. 2 and 3, the connecting assembly comprises a clamping sleeve 4 and a clamping core 5, one end of the clamping sleeve 4 is connected with the table surface of the mounting platform 3 facing the other platform, the other end is coaxially provided with a circular truncated cone-shaped clamping groove 41 which is extended by the end part of the spring, the smaller end of the clamping groove 41 is one end close to the platform, and the larger end of the clamping groove is extended by the end part of the spring. The shape of the clamping core 5 is matched with that of the clamping groove 41, the clamping core 5 can slide relatively and coaxially along the axial direction of the clamping sleeve 4, and the mounting platform 3 is provided with a limiting component 6 for limiting the sliding of the clamping core 5. After the end part of the spring to be tested stretches into the clamping groove 41 and is sleeved on the clamping core 5, the clamping core 5 slides into the clamping groove 41 and presses the end part of the spring to be tested to deform, the limiting component 6 is used for fixing the clamping core 5, namely, the connection operation of the spring is completed, the spring is pressed to deform by utilizing the extrusion of the surface and the surface between the clamping core 5 and the clamping groove 41, the spring can be effectively clamped and fixed, and the end part of the spring is effectively prevented from being pulled to deform and trip in the elastic force test process.

Specifically, the limiting component 6 comprises a screw 61 and a threaded sleeve 62, the mounting bracket 31 is integrally fixed on one surface, away from the clamping sleeve 4, of the mounting platform 3, the threaded sleeve 62 is integrally fixed on the mounting bracket 31, the screw 61 is threaded through the threaded sleeve 62, one end of the screw 61 is coaxially connected with the clamping core 5, and the other end of the screw 61 is connected with a handle 63. By rotating the handle 63, the clamping core 5 can move coaxially relative to the clamping sleeve 4 under the threaded fit between the screw 61 and the threaded sleeve 62.

Wherein, in order to improve the fixed effect to joint core 5, in this embodiment, still threaded connection has conflict nut 64 on the screw rod 61, and conflict nut 64 is located the one side that joint core 5 was kept away from to screw rod sleeve 62 for with conflict nut 64 rotatory to with screw rod sleeve 62 butt after joint core 5 removes in place, thereby play effectual effect that prevents to take off to screw rod 61.

Further, the clamping sleeve 4 is detachably connected with the mounting platform 3, and the clamping core 5 is detachably connected with the screw 61. When the specification of the spring to be tested changes, the clamping sleeve 4 and the clamping core 5 can be detached and replaced by the clamping sleeve 4 and the clamping core 5 with proper sizes of the spring to be tested, so that the springs with different specifications can be stably clamped.

Specifically, the mounting seats 32 are fixedly arranged on the mutually opposite planes of the two mounting platforms 3, the mounting seats 32 are provided with mounting grooves 33, the clamping sleeves 4 are coaxially and fixedly provided with connecting cylinders 42 with the same mounting size, mounting holes 43 are formed in the side walls of the connecting cylinders 42 in a penetrating manner, supporting balls 44 are movably mounted in the mounting holes 43, the supporting balls 44 are uniformly arranged at intervals along the circumferential direction of the connecting cylinders 42, the wall thickness of the connecting cylinders 42 is smaller than the diameter of the supporting balls 44, the inner walls of the mounting grooves 33 are circumferentially provided with annular grooves 34 matched with the supporting balls 44, and the clamping cores 5 are coaxially and fixedly provided with supporting rods 51 matched with the inner diameters of the connecting cylinders 42. After the connecting cylinder 42 on the clamping sleeve 4 is aligned and inserted into the mounting groove 33 on the mounting seat 32, the clamping core 5 is inserted into the clamping groove 41, and the supporting rod 51 stretches into the connecting cylinder 42, so that the supporting balls 44 on the side wall of the connecting cylinder 42 are pushed out of the mounting hole 43, the supporting balls 44 are clamped in the annular groove 34 on the inner wall of the mounting groove 33, and the mounting seat 32 and the connecting cylinder 42 are simultaneously connected and supported through the plurality of supporting balls 44, so that the connection stability between the clamping sleeve 4 and the connecting cylinder 42 can be greatly improved. The coaxial fixedly connected with spliced pole 52 that the one end that the joint core 5 is close to screw rod 61, screw rod 61 is close to the coaxial grafting groove 53 of having seted up with spliced pole 52 adaptation of one end that the joint core 5 is close to, all runs through on screw rod 61 and the grafting pole 52 and has seted up the pinhole 71 of coaxial alignment when spliced pole 52 and grafting groove 53, and screw rod 61 and grafting pole 52 are fixed through lining up in pinhole 71 and are inserted bolt 7. In the embodiment of the present application, the cross-section of the plugging post 52 is square, and when the plugging post 52 is engaged with the plugging slot 53, the screw 61 can also drive the clamping core 5 to rotate. When the plug post 52 is fixed to the screw 61 by the plug 7, the support rod 51 is supported inside the mounting hole 43 in the connecting tube 42, pushing the support ball 44 out to abut in the annular groove 34. In order to smooth the insertion of the support rod 51 into the connection tube 42, the edge of the step between the support rod 51 and the insertion rod is set to a guide slope 54.

Further, the inner wall of the clamping groove 41 is integrally provided with clamping teeth 45 along a bus of the inner wall of the clamping groove 41 in a protruding mode, the clamping teeth 45 are uniformly spaced along the circumferential direction of the clamping teeth 45, and the included angles of the divergent lines between the adjacent clamping teeth 45 are the same. When the clamping core 5 compresses the spring in the clamping groove 41, besides the end part of the spring to be tested is compressed and deformed, a plurality of deformation notches are also formed in the spring by the clamping teeth 45, so that the spring can be further prevented from being pulled to slide and trip in the testing process.

The implementation principle of the spring force tester of the control valve provided by the embodiment of the application is as follows: through adopting the joint cover 4 of round platform shape to cooperate with joint core 5, after the joint groove 41 on the joint cover 4 is gone into to the spring card that will await measuring in, rotate screw 61, make joint core 5 remove to joint groove 41, press the spring to await measuring to the deformation to joint tooth 45 in the joint groove 41 also extrudees the impression with the spring surface that awaits measuring, can prevent effectively that the spring from following its wire spiral direction slip trip in the test process, improves the connection reliability to the spring on the tester.

It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a control valve spring elasticity tester, includes tester main part (1), two sets of spring coupling platform (2) that are mirror symmetry each other are installed along vertical direction slidable mounting on tester main part (1), its characterized in that: the spring connecting platform (2) is connected with a mounting platform (3) through a pressure sensor (21), a connecting component used for connecting the end parts of the springs is arranged on the mounting platform (3), the connecting component comprises a clamping sleeve (4) and a clamping core (5), one end of the clamping sleeve (4) is connected with the mounting platform (3), the other end of the clamping sleeve is provided with a circular truncated cone-shaped clamping groove (41) for the end parts of the springs to extend in, the clamping core (5) is matched with the clamping groove (41), the clamping core (5) can axially and coaxially slide along the clamping sleeve (4), and a limiting component (6) used for limiting the sliding of the clamping core (5) is arranged on the mounting platform (3).

2. The control valve spring elasticity tester according to claim 1, wherein the limiting assembly (6) comprises a screw rod (61) and a threaded sleeve (62), the mounting support (31) is fixedly arranged on one surface of the mounting platform (3) away from the clamping sleeve (4), the threaded sleeve (62) is fixedly connected with the mounting support (31), the screw rod (61) is in threaded connection with the threaded sleeve (62), one end of the screw rod (61) is coaxial with the clamping core (5), and the other end of the screw rod is connected with a handle (63).

3. The spring force tester for the control valve according to claim 2, wherein the clamping sleeve (4) is detachably connected with the mounting platform (3), and the clamping core (5) is detachably connected with the screw (61).

4. The control valve spring elasticity tester according to claim 3, characterized in that two mounting platforms (3) are fixedly provided with mounting seats (32) on mutually opposite planes, mounting grooves (33) are formed in the mounting seats (32), connecting cylinders (42) consistent with mounting sizes are coaxially and fixedly arranged on clamping sleeves (4), mounting holes (43) are formed in the side walls of the connecting cylinders (42) in a penetrating mode, supporting balls (44) are movably mounted in the mounting holes (43), the supporting balls (44) are uniformly arranged at intervals along the circumferential direction of the connecting cylinders (42), the wall thickness of the connecting cylinders (42) is smaller than the diameter of the supporting balls (44), annular grooves (34) matched with the supporting balls (44) are formed in the inner walls of the mounting grooves (33) along the circumferential direction of the mounting grooves, and supporting rods (51) matched with the inner diameters of the connecting cylinders (42) are coaxially and fixedly arranged on clamping cores (5).

5. A control valve spring elasticity tester according to claim 3, characterized in that, the coaxial fixedly connected with spliced pole (52) of the one end that the joint core (5) is close to screw rod (61), spliced groove (53) with spliced pole (52) adaptation are offered to the one end that the screw rod (61) is close to joint core (5) coaxial, all run through on screw rod (61) and spliced pole (52) and offer pin hole (71) of coaxial alignment when spliced pole (52) and spliced groove (53), screw rod (61) and spliced pole (52) are through in pin hole (71) through-going to insert bolt (7) in order to fix.

6. The spring force tester for the control valve according to any one of claims 1 to 5, wherein the inner wall of the clamping groove (41) is provided with clamping teeth (45) along a bus of the inner wall of the clamping groove (41), and the clamping teeth (45) are uniformly arranged at intervals along the circumferential direction of the clamping groove (41).