Dismounting device for taking out pole shoe from pilot module of electromagnetic valve

Abstract

The utility model relates to the technical field of electromagnetic valve assembling and disassembling tools, in particular to a disassembling device for taking out a pole shoe from an electromagnetic valve pilot module. The dismounting device comprises a press-fitting module and a dismounting module, wherein the press-fitting module is provided with a first groove extending downwards from the top surface of the press-fitting module; the supporting module is provided with a second groove which extends upwards from the bottom surface of the supporting module; wherein the bottom end of the press-fitting module is clamped in the second groove in a sliding mode, the top end of the supporting module is clamped in the first groove in a sliding mode, and the press-fitting module can move up and down relative to the supporting module; the top end of the supporting module is provided with a through hole used for being connected with a pole shoe, the press-fitting module is provided with a hole channel penetrating from the upper end to the lower end of the press-fitting module, and the diameter of the hole channel is between the diameter of the shell and the diameter of the pole shoe. According to the dismounting device, the structure is simple and compact, the operation is convenient, and the pole shoe can be rapidly and accurately dismounted from the shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to electromagnetic valve assembly tool technical field, in particular to a kind of dismounting device for extracting pole shoe from electromagnetic valve pilot module. BACKGROUND

[0002] At present, with the development of intelligentization, digitization, the requirement of user to response speed, operating precision of hydraulic equipment in engineering machinery, coal machinery is continuously improved.In prior art, electromagnetic valve pilot module uses electromagnet as the driving component of execution mechanism.Electromagnet can realize continuous proportional pressure output according to input current, and further has higher control precision and fast response performance.Therefore, multi-way valve equipped with electromagnetic valve pilot module can meet the requirement of response speed, operating precision of hydraulic equipment.

[0003] In electromagnetic valve pilot module, the mounting hole between the shell of electromagnet and fixed seat is connected by interference fit.Meanwhile, electromagnet is mainly composed of shell, coil, armature push rod and pole shoe.Electromagnet is also encapsulated by interference fit between pole shoe and shell.Due to machining error, assembly deviation and other reasons, armature push rod jam, coil leakage and other phenomena may occur during pilot module test, and pole shoe needs to be disassembled from shell for correction and reinstallation of each component.

[0004] However, the structure connected by interference fit may generate large interference force between contact surfaces.Moreover, the diameters of pole shoe, shell and mounting hole of fixed seat are very small, so it is difficult to find the force point between shell and fixed seat when disassembling electromagnetic valve pilot module using conventional tool, which leads to that pole shoe and shell cannot be separated at one time, and components are also easily damaged. UTILITY MODEL CONTENTS

[0005] The utility model aims at at least solving one of the technical problems existing in related art.For this purpose, the utility model provides a kind of dismounting device for extracting pole shoe from electromagnetic valve pilot module to realize the purpose of extracting pole shoe from shell at one time.

[0006] The utility model provides a kind of dismounting device for extracting pole shoe from electromagnetic valve pilot module, and the dismounting device includes:

[0007] Pressing module, with first recess extending downward from the top surface of the pressing module;

[0008] Support module, with second recess extending upward from the bottom surface of the support module;

[0009] Wherein, the bottom end of the pressing module is slidably connected to the second recess, the top end of the support module is slidably connected to the first recess, and the pressing module can move up and down relative to the support module.

[0010] The top end of the support module is provided with a through hole for connecting the pole shoe, and the pressing module is provided with a hole channel passing through from the upper end to the lower end, and the diameter of the hole channel is between the diameter of the shell and the diameter of the pole shoe.

[0011] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the hole channel comprises a first hole section close to the bottom end of the pressing module and a second hole section close to the top end of the pressing module.

[0012] The diameter of the first hole section is greater than the diameter of the pole shoe, the diameter of the second hole section is less than the diameter of the pole shoe, and a stepped surface is formed at the joint of the first hole section and the second hole section.

[0013] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the length of the first hole section is greater than the thickness of the connecting flange of the pole shoe.

[0014] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the support module comprises a supporting rod and a top rod slidingly connected to the first groove, and the second groove is formed by the top rod and the supporting rods which are arranged in parallel and spaced apart at both ends of the top rod.

[0015] The difference between the depth of the first groove and the height of the top rod is greater than the thickness of the connecting flange.

[0016] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the pressing module is in a cylindrical shape, the first groove is symmetrically arranged relative to the central axis of the pressing module, and the central axis of the hole channel coincides with the central axis of the pressing module.

[0017] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the top rod comprises a stepped portion located at the bottom of the second groove, and the side wall of the stepped portion is arranged as a circular arc surface matched with the outer peripheral surface of the pressing module.

[0018] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the difference between the height of the pressing module and the depth of the first groove is greater than the height of the stepped portion.

[0019] According to the dismounting device for taking out the pole shoe from the electromagnetic valve pilot module, the distance between the two supporting rods is matched with the width of the electromagnetic valve pilot module, and the electromagnetic valve pilot module is guided.

[0020] The side wall of the through hole is provided with a thread.

[0021] The dismounting device for taking out the pole shoe from the electromagnetic valve pilot module further comprises a bottom plate arranged below the support module.

[0022] The depth of the second groove is greater than the difference between the depth of the first groove and the height of the top rod.

[0023] The one or more technical solutions in the utility model have at least one of the following technical effects: the pressing and mounting module and the support module are matched to form a simple guiding mechanism through the first groove and the second groove, the positioning and guiding effects are realized, the size of the hole channel can only accommodate the pole shoe, the pressing and mounting module can be quickly and accurately abutted to the shell, the pole shoe can be removed from the shell at one time by driving the pressing and mounting module to move relative to the support module, the use effect is good, and the structure is simple, compact and convenient to operate.

[0024] In addition to the technical problems solved by the utility model, the technical features of the technical solutions and the advantages brought by the technical features, other technical features of the utility model and the advantages brought by the technical features will be further described with reference to the drawings or understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the related technical solutions, the drawings needed to be used in the embodiment or the related technical solution description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to the drawings without creating any creative labor.

[0026] Figure 1 The three-dimensional structure schematic diagram of the dismounting device provided by the embodiment of the utility model.

[0027] Figure 2 The three-dimensional structure schematic diagram of the pressing and mounting module provided by the embodiment of the utility model.

[0028] Figure 3 The three-dimensional structure schematic diagram of the support module provided by the embodiment of the utility model.

[0029] Figure 4 The relative position schematic diagram of the pressing and mounting module and the electromagnetic valve pilot module before the pole shoe and the shell are separated provided by the embodiment of the utility model.

[0030] Figure 5The relative position diagram of the pressing module and the electromagnetic valve pilot module after the pole shoe and the shell are separated is provided for the embodiments of the utility model.

[0031] Reference signs:

[0032] 100, pressing module; 110, first groove; 120, hole channel; 121, first hole section; 122, second hole section; 200, support module; 210, second groove; 220, support rod; 230, top rod; 231, through hole; 232, step part; 300, bottom plate; 400, electromagnetic valve pilot module; 410, pole shoe; 411, connecting flange; 420, shell; 430, coil; 440, armature push rod; 450, fixed seat; 460, screw. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the utility model will be clearly described below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0034] In the description of the embodiments of the utility model, it should be explained that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0036] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature can be directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0037] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0038] As shown in Figure 4 and Figure 5 In the electromagnetic valve pilot module 400, the shell 420 of the electromagnet is connected between the mounting hole of the fixed seat 450 through interference fit. At the same time, the electromagnet is mainly composed of the shell 420, the coil 430, the armature push rod 440 and the pole shoe 410. The electromagnet is also packaged through interference fit between the pole shoe 410 and the shell 420. Due to machining errors, assembly deviations and other reasons, during the pilot module test, the armature push rod 440 may be stuck, the coil 430 may be electrically leaked, and the pole shoe 410 needs to be disassembled from the shell 420 to correct and reinstall each component.

[0039] However, the structure connected by interference fit will generate a large interference force between the contact surfaces. Moreover, the diameters of the pole shoe 410, the shell 420 and the mounting hole of the fixed seat 450 are very small, and it is difficult to find the force point between the shell 420 and the fixed seat 450 when disassembling the electromagnetic valve pilot module 400 using conventional tools, which causes the pole shoe 410 and the shell 420 to be separated at one time, and also easily causes damage to the components.

[0040] In order to solve the above problems, in the embodiments of the present application, a dismounting device for taking out the pole shoe 410 from the electromagnetic valve pilot module 400 is introduced.

[0041] As shown in Figures 1 to 3 The dismounting device mainly comprises a pressing module 100 and a supporting module 200.

[0042] The pressing module 100 is provided with a first groove 110 extending downward from the top surface of the pressing module 100. The supporting module 200 is provided with a second groove 210 extending upward from the bottom surface of the supporting module 200.

[0043] When the dismounting device is used to dismount the pole shoe 410 of the electromagnetic valve pilot module 400, the bottom end of the pressing module 100 is slidably connected to the second groove 210, and the top end of the supporting module 200 is slidably connected to the first groove 110. The pressing module 100 can move up and down relative to the supporting module 200.

[0044] As shown in Figure 5 The top end of the supporting module 200 is provided with a through hole 231 for connecting the pole shoe 410. The pressing module 100 is provided with a hole 120 extending from the top end to the bottom end. The diameter dy of the hole 120 is between the diameter dk of the shell 420 and the diameter dj of the pole shoe 410. In this way, when the dismounting device is used, the pole shoe 410 is fixedly connected to the supporting module 200 by the through hole 231. When the pressing force is applied to the pressing module 100, the pressure can be transmitted to the shell 420 which is in interference fit with the pole shoe 410, so that the pole shoe 410 and the shell 420 are respectively subjected to forces in opposite directions.

[0045] Further, the top outer circular surface of the shell 420 is in interference fit with the top inner circular surface of the mounting hole of the fixed seat 450. The middle part of the pole shoe 410 is provided with a connecting flange 411. The outer circular surface of the connecting flange 411 is in interference fit with the inner circular surface of the shell 420. The lower part of the pole shoe 410 is provided as a cylindrical body which is in clearance fit with the inner hole surface of the coil 430.

[0046] After the dismounting device is connected to the pole shoe 410, it is placed on the press for pressing, so that the pressing module 100 slides downward along the first groove 110 relative to the supporting module 200. The bottom of the pressing module 100 is tightly attached to the top end surface of the electromagnetic valve pilot module 400. The bottom is provided with a hole 120 with a diameter dy. In particular, the diameter dj of the connecting flange 411 is smaller than the diameter dy of the hole 120, and the diameter dy of the hole 120 is smaller than the inner circular surface diameter dk of the shell 420, i.e. dj < dy < dk. In this way, the pressing module 100 and the shell 420 can be in abutment with each other, so as to avoid the shell 420 from being pulled out.

[0047] In the embodiment, the pressing module 100 and the supporting module 200 are matched to form a simple guiding mechanism through the first groove 110 and the second groove 210, so that the positioning and guiding effects are realized, and the size of the hole channel 120 can only accommodate the pole shoe 410, so that the pressing module 100 can be quickly and accurately abutted to the shell 420, and by driving the pressing module 100 to move relative to the supporting module 200, the pole shoe 410 can be removed from the shell 420 at one time, the use effect is good, and the structure is simple, compact and convenient to operate.

[0048] On the basis of the above embodiment, another embodiment of the utility model introduces a dismounting device for taking out the pole shoe 410 from the electromagnetic valve pilot module 400.

[0049] The hole channel 120 comprises a first hole section 121 close to the bottom end of the pressing module 100 and a second hole section 122 close to the top end of the pressing module 100.

[0050] The diameter of the first hole section 121 is greater than the diameter of the pole shoe 410, and the diameter of the second hole section 122 is less than the diameter of the pole shoe 410. Here, the diameter of the pole shoe 410 refers to the diameter of the connecting flange 411 in interference fit with the shell 420. The hole channel 120 forms a stepped surface at the joint of the first hole section 121 and the second hole section 122.

[0051] Further, the length of the first hole section 121 is greater than the thickness of the connecting flange 411 of the pole shoe 410.

[0052] On the basis of the above embodiment, another embodiment of the utility model introduces a dismounting device for taking out the pole shoe 410 from the electromagnetic valve pilot module 400.

[0053] As shown in Figure 3 and Figure 4 The supporting module 200 comprises a supporting rod 220 and a top rod 230 slidingly connected to the first groove 110.

[0054] The second groove 210 is composed of the top rod 230 and two supporting rods 220 which are arranged in parallel and spaced apart at both ends of the top rod 230.

[0055] The difference between the depth of the first groove 110 and the height of the top rod 230 is greater than the thickness of the connecting flange 411.

[0056] Specifically, a through hole 231 is formed on the top rod 230. A screw 460 passes through the through hole 231 and connects with a threaded hole on the top of the pole shoe 410, fixing the pole shoe 410 to the support module 200. Two support rods 220 are located on both sides of the electromagnetic valve pilot module 400 and tightly fit the side surface of the electromagnetic valve pilot module 400 with their inner surfaces. During the press fitting process, the electromagnetic valve pilot module 400 can slide along the second groove 210. The bottom plate 300 is connected with the bottom of the support rod 220 by the screw 460, supporting the pole shoe 410.

[0057] As shown in Figure 4 After the dismounting device and the electromagnetic valve pilot module 400 are connected, they are placed on the operating surface of the press. Before the pole shoe 410 is separated from the shell 420, the distance h1 between the upper surface of the top rod 230 and the top surface of the press fitting module 100 is the maximum press fitting stroke of the dismounting device.

[0058] During the press fitting, the press machine transmits a downward pressure F to the press fitting module 100 through a press head. The press fitting module 100 then transmits the force to the top surface of the electromagnetic valve pilot module 400 through its bottom surface, and drives the shell 420 to move downward.

[0059] Since the pole shoe 410 and the support module 200 are fastened together by the screw 460, the pole shoe 410 can remain stationary during the press fitting process. When the press fitting module 100 receives a pressing force transmitted by the press machine that is greater than the interference force between the pole shoe 410 and the shell 420, the press fitting module 100 slides downward relative to the support module 200. At this time, all parts of the electromagnetic valve pilot module 400 except the pole shoe 410 slide downward along the second groove 210. When the stroke h2 of the movement of the press fitting module 100 is greater than the thickness b of the connecting flange 411, the pole shoe 410 is separated from the shell 420.

[0060] On the basis of the above embodiment, another embodiment of the utility model discloses a dismounting device for taking out the pole shoe 410 from the electromagnetic valve pilot module 400.

[0061] The press fitting module 100 is in a cylindrical shape. The first groove 110 is symmetrically arranged relative to the central axis of the press fitting module 100. The central axis of the hole 120 coincides with the central axis of the press fitting module 100.

[0062] On the basis of the above embodiment, another embodiment of the utility model discloses a dismounting device for taking out the pole shoe 410 from the electromagnetic valve pilot module 400.

[0063] The top rod 230 includes a stepped portion 232 located at the bottom of the second groove 210. The sidewall of the stepped portion 232 is configured as an arc surface that matches the outer peripheral surface of the pressing module 100, which can reduce the gap between the support rod 220 and the pressing module 100 and avoid the accumulation of impurities.

[0064] Furthermore, the difference between the height of the press-fit module 100 and the depth of the first groove 110 is greater than the height of the step portion 232.

[0065] Based on the above embodiments, another embodiment of the present invention introduces a disassembly device for removing the pole shoe 410 from the solenoid valve pilot module 400.

[0066] The spacing between the two support rods 220 is adapted to the width of the solenoid valve pilot module 400, and is used to guide the solenoid valve pilot module 400.

[0067] Furthermore, the sidewall of the through hole 231 is provided with threads.

[0068] Furthermore, it also includes a base plate 300 disposed below the support module 200;

[0069] The depth of the second groove 210 is greater than the difference between the depth of the first groove 110 and the height of the top rod 230.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dismounting device for extracting a pole shoe from a solenoid pilot module, characterized in that, The application relates to a pressure assembly module for an electromagnetic valve pilot module (400), comprising: a pressure assembly module (100) provided with a first groove (110) extending downward from the top surface of the pressure assembly module (100); a support module (200) provided with a second groove (210) extending upward from the bottom surface of the support module (200); wherein the bottom end of the pressure assembly module (100) is slidably connected to the second groove (210), the top end of the support module (200) is slidably connected to the first groove (110), and the pressure assembly module (100) can move up and down relative to the support module (200); the top end of the support module (200) is provided with a through hole (231) for connecting a pole shoe (410), and the pressure assembly module (100) is provided with a hole (120) extending from the top end to the bottom end, and the diameter of the hole (120) is between the diameter of a shell (420) and the diameter of the pole shoe.

2. The dismounting device for extracting the pole shoe from the solenoid valve pilot module according to claim 1, characterized in that, The hole (120) comprises a first hole section (121) close to the bottom end of the pressure assembly module (100) and a second hole section (122) close to the top end of the pressure assembly module (100); the diameter of the first hole section (121) is greater than the diameter of the pole shoe (410), the diameter of the second hole section (122) is less than the diameter of the pole shoe (410), and a step surface is formed at the joint of the first hole section (121) and the second hole section (122).

3. The disassembly device for removing a pole shoe from a solenoid valve pilot module according to claim 2, characterized in that The length of the first hole section (121) is greater than the thickness of a connecting flange (411) of the pole shoe (410).

4. The disassembly device for removing a pole shoe from a solenoid valve pilot module according to claim 3, characterized in that The support module (200) comprises a support rod (220) and a top rod (230) slidably connected to the first groove (110), and the second groove (210) is formed by the top rod (230) and two support rods (220) which are parallel and arranged at both ends of the top rod (230); the difference between the depth of the first groove (110) and the height of the top rod (230) is greater than the thickness of the connecting flange (411).

5. The disassembly device for removing a pole shoe from a solenoid valve pilot module according to claim 4, characterized in that The pressure assembly module (100) is in a cylindrical shape, the first groove (110) is symmetrically arranged relative to the central axis of the pressure assembly module (100), and the central axis of the hole (120) coincides with the central axis of the pressure assembly module (100).

6. The removal device for removing a pole shoe from a solenoid valve pilot module according to claim 5, characterized in that The top rod (230) comprises a step portion (232) at the bottom of the second groove (210), and the side wall of the step portion (232) is arranged as a circular arc surface matched with the outer peripheral surface of the pressure assembly module (100).

7. The removal device for removing a pole shoe from a solenoid valve pilot module according to claim 6, characterized in that The difference between the height of the pressure assembly module (100) and the depth of the first groove (110) is greater than the height of the step portion (232).

8. The removal device for removing a pole shoe from a solenoid valve pilot module according to claim 4, characterized in that The interval distance between the two support rods (220) is matched with the width of the electromagnetic valve pilot module (400) for guiding the electromagnetic valve pilot module (400).

9. The removal device for removing a pole shoe from a solenoid valve pilot module according to claim 4, characterized in that The side wall of the through hole (231) is provided with threads.

10. The removal device for removing a pole shoe from a solenoid valve pilot module according to claim 4, characterized in that The application further comprises a bottom plate (300) arranged below the support module (200); the depth of the second groove (210) is greater than the difference between the depth of the first groove (110) and the height of the top rod (230).

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