Electromagnet structure of mine electromagnetic pilot valve and mine electromagnetic pilot valve

Abstract

The utility model relates to solenoid valve technical field especially relates to a mine electromagnetic pilot valve's electromagnet structure and mine electromagnetic pilot valve. Electromagnet structure includes: casing, is provided with first accommodating chamber and second accommodating chamber, and the open mouth of first accommodating chamber and the open mouth of second accommodating chamber are located respectively at the end face of casing both ends, iron stand subassembly, installs in first accommodating chamber, armature subassembly, is embedded in iron stand subassembly, end cap subassembly, sets up in the end face of casing and covers the open mouth of second accommodating chamber, electric control subassembly, is embedded in second accommodating chamber, wherein, the casing is made of non -metal material injection, and the bottom surface of first accommodating chamber and the bottom surface of second accommodating chamber partly overlap to form the communicating passage. In the utility model, through optimizing the structure of casing, so that end cap subassembly and casing between through the end face of pressing contact can ensure the leakproofness, solved the problem of non -metal material injection processing precision low.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to an electromagnet structure for a mining electromagnetic pilot valve and the mining electromagnetic pilot valve itself. Background Technology

[0002] Mining electromagnetic pilot valves are in high demand in fully mechanized coal mining faces, where the working environment is characterized by high levels of coal dust and moisture. These valves are primarily installed on the electro-hydraulic directional valves in the fully mechanized mining face to control the movement of the support cylinders, thereby achieving the overall movement of the support. Fully mechanized coal mining faces are generally classified into thin, medium-thick, and thick coal seams based on coal seam thickness. Thin coal seams, in particular, have very limited space. During maintenance of the electro-hydraulic control system, workers must bend over or crawl into the working face to perform maintenance operations.

[0003] An electromagnet structure typically includes a housing, a frame assembly, and an electronic control assembly. Previously, these components were all made of metal, resulting in a relatively heavy overall weight. Furthermore, the frame assembly and housing were assembled with a tight fit, requiring high precision machining of each part, leading to manufacturing difficulties and higher operating and maintenance costs. To address these issues, some manufacturers have begun using non-metallic materials to fabricate the housing of electromagnet structures, thereby reducing weight and manufacturing costs to some extent.

[0004] However, because non-metallic materials have lower hardness and toughness than conventional metallic materials, and because non-metallic materials have lower processing precision during injection molding, they are prone to poor flatness at the connection points, which reduces sealing performance. Utility Model Content

[0005] This utility model aims to solve the technical problems existing in related technologies. To this end, this utility model proposes an electromagnet structure for a mining electromagnetic pilot valve and a mining electromagnetic pilot valve. By integrating the manual operation component and the electrical control component into the end cap component, the structure of the housing is simplified, and the sealing performance can be ensured by pressing the end cap component and the housing together. This solves the problem of low precision in injection molding of non-metallic materials.

[0006] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve, comprising: The housing has a first receiving cavity and a second receiving cavity, the openings of the first receiving cavity and the openings of the second receiving cavity being located at the end faces of the two ends of the housing, respectively; The iron frame assembly is installed inside the first receiving cavity; An armature assembly is embedded in the iron frame assembly; An end cap assembly is disposed on the end face of the housing and covers the opening of the second receiving cavity; The electronic control components are embedded in the second receiving cavity; The housing is injection molded from a non-metallic material, and the bottom surface of the first receiving cavity partially overlaps with the bottom surface of the second receiving cavity to form a connecting channel.

[0007] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve. The iron frame assembly includes a guide cylinder, and a flange plate is provided on the outer peripheral surface of the guide cylinder. The flange plate is in contact with the bottom surface of the first receiving cavity, and a wiring hole is provided on the flange plate at a position corresponding to the communicating channel. The armature assembly includes an armature and a coil. The armature is mounted on the guide cylinder, and the coil is electrically connected to the electronic control assembly through the wiring hole.

[0008] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve. The iron frame assembly further includes a magnetic cylinder, which is embedded in the first receiving cavity and sleeved with the flange plate.

[0009] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve, wherein the end cap assembly includes: The cover plate is injection molded from a non-metallic material and has two first through holes; A manual operation component is embedded in the first through hole; When the cover plate is installed on the housing, the central axis of the first through hole coincides with the central axis of the first receiving cavity.

[0010] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve, wherein the cover plate is further provided with a second through hole, which is located between two first through holes. The electronic control component includes: The circuit board is embedded in the second receiving cavity; A socket, one end of which is connected to the second through hole.

[0011] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve. The housing has countersunk grooves on both sides of the second receiving cavity, and nuts are embedded in the countersunk grooves for installing the cover plate.

[0012] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve. The housing is provided with a mounting channel parallel to the first receiving cavity. The mounting channel extends from one end face of the housing to the other end face of the housing and is used for threading bolts.

[0013] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve, wherein the end face of the cover plate is provided with a first sealing groove, and the first sealing groove surrounds the outer periphery of the two first through holes.

[0014] This utility model provides an electromagnet structure for a mining electromagnetic pilot valve, wherein the end face of the housing is provided with a second sealing groove, and the second sealing groove surrounds the outer periphery of the two first receiving cavities.

[0015] Secondly, this utility model also provides a mining electromagnetic pilot valve, which adopts the electromagnet structure described in any one of the above, and further includes a pilot valve connected to the open end face of the housing having the second receiving cavity.

[0016] The above-mentioned one or more technical solutions of this utility model have at least one of the following technical effects: by integrating the manual operation component and the electronic control component into the end cap component, the structure of the housing is simplified, and the sealing performance can be ensured by pressing the end face of the end cap component and the housing together, thus solving the problem of low injection molding precision of non-metallic materials.

[0017] In addition to the technical problems solved by this utility model, the technical features of the technical solutions constituted by this utility model, and the advantages brought about by these technical features, as described above, other technical features of this utility model and the advantages brought about by these technical features will be further explained in conjunction with the accompanying drawings, or can be learned through the practice of this utility model. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the electromagnet structure provided in an embodiment of the present utility model.

[0020] Figure 2 This is a front view showing a partial cross-section of the electromagnet structure, provided for an embodiment of this utility model.

[0021] Figure 3 This is a side view showing a partial cross-section of the electromagnet structure, provided for an embodiment of the present invention.

[0022] Figure 4 This is a three-dimensional schematic diagram of the iron frame assembly provided in the embodiment of the present utility model when it is embedded in the shell.

[0023] Figure 5 A bottom view of the housing provided in an embodiment of this utility model.

[0024] Figure 6A cross-sectional view of the housing and iron frame assembly provided in an embodiment of this utility model.

[0025] Figure 7 Another cross-sectional view of the housing and frame assembly provided in an embodiment of the present utility model.

[0026] Figure 8 A three-dimensional schematic diagram of a mining electromagnetic pilot valve provided for an embodiment of this utility model.

[0027] Figure label: 100. Housing; 110. First receiving cavity; 120. Second receiving cavity; 130. Countersunk groove; 140. Mounting channel; 150. Second sealing groove; 200. Iron frame assembly; 210. Guide cylinder; 211. Flange plate; 212. Wiring hole; 220. Magnetic guide cylinder; 300. End cap assembly; 310. Cover plate; 311. First through hole; 312. Second through hole; 313. First sealing groove; 320. Manual operation assembly; 400. Electrical control assembly; 410. Circuit board; 420. Socket; 500. Armature assembly; 600. Pilot valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In an embodiment of this utility model, an electromagnet structure for a mining electromagnetic pilot valve is described.

[0030] like Figures 1 to 7 As shown, the electromagnet structure mainly includes a housing 100, a frame assembly 200, an armature assembly 500, an end cap assembly 300, and an electrical control assembly 400. The armature assembly 500, the frame assembly 200, and the housing 100 are arranged sequentially from the inside out.

[0031] Specifically, the housing 100 is provided with a first receiving cavity 110 and a second receiving cavity 120. The openings of the first receiving cavity 110 and the second receiving cavity 120 are respectively located on the end faces of both ends of the housing 100. The iron frame assembly 200 is installed in the first receiving cavity 110. The armature assembly 500 is embedded in the iron frame assembly 200.

[0032] An end cap assembly 300 is disposed on the end face of the housing 100. The end cap assembly 300 covers the opening of the second receiving cavity 120. An electronic control assembly 400 is embedded in the second receiving cavity 120.

[0033] Furthermore, the housing 100 is injection molded from a non-metallic material. The bottom surface of the first receiving cavity 110 partially overlaps with the bottom surface of the second receiving cavity 120 to form a communicating channel. In this way, wiring connecting the electronic control component 400 and the armature component 500 can be arranged inside the housing 100 using the communicating channel.

[0034] Furthermore, the end cap assembly 300 mainly includes a cover plate 310 and a manual operation component 320.

[0035] The cover plate 310 is injection molded from a non-metallic material. The cover plate 310 has two first through holes 311. A manual operation component 320 is embedded in the first through hole 311. When the cover plate 310 is installed on the housing 100, the central axis of the first through hole 311 coincides with the central axis of the first receiving cavity 110.

[0036] The cover plate 310 is also provided with a second through hole 312. The second through hole 312 is located between the two first through holes 311. The electronic control assembly 400 includes a circuit board 410 and a socket 420. The circuit board 410 is embedded in the second receiving cavity 120. One end of the socket 420 passes through the second through hole 312.

[0037] The iron frame assembly 200 includes a guide cylinder 210. A flange plate 211 is provided on the outer peripheral surface of the guide cylinder 210. The flange plate 211 is in contact with the bottom surface of the first receiving cavity 110. A wiring hole 212 is provided on the flange plate 211 at a position corresponding to the communicating channel. The armature assembly 500 is electrically connected to the electrical control assembly 400 through the wiring hole 212.

[0038] Specifically, the armature assembly 500 includes a pole shoe, a coil, an armature, and a push rod. The armature is mounted on the guide cylinder 210. The coil is electrically connected to the electronic control assembly 400 through the wiring hole 212. Furthermore, the push rod is aligned with the central axis of the guide cylinder 210. The push rod can reciprocate relative to the guide cylinder 210 under the drive of the armature. Further, the iron frame assembly 200 also includes a magnetic guide cylinder 220. The magnetic guide cylinder 220 is embedded in the first receiving cavity 110. One end of the magnetic guide cylinder 220 is sleeved with the flange plate 211.

[0039] Specifically, the magnetic cylinder 220 is connected to the inner wall of the first receiving cavity 110, and the pole shoe is connected to the inner wall of the magnetic cylinder 220. The magnetic cylinder 220 and the inner wall of the first receiving cavity 110 are connected by an interference fit or a transition fit.

[0040] The pole shoe and the magnetic cylinder 220 are connected by an interference fit or a transition fit, and the magnetic cylinder 220 and the inner wall of the first receiving cavity 110, as well as the pole shoe and the magnetic cylinder 220, are completely fitted together without any obvious gaps. The connection between the magnetic cylinder 220 and the pole shoe replaces the metal housing 100 in transmitting magnetism after the coil is energized. Since the housing 100 is made of non-metallic material, it does not have a magnetic conduction function.

[0041] Meanwhile, the outer peripheral wall of the guide cylinder 210 is provided with a radially extending frustum-shaped flange plate 211. The flange plate 211 is sleeved with the magnetic cylinder 220. When installing the guide cylinder 210 and the magnetic cylinder 220, they can be pre-connected by welding or bonding, and then embedded into the first receiving cavity 110 of the housing 100, thereby improving the coaxiality between the guide cylinder 210 and the magnetic cylinder 220.

[0042] The two ends of the push rod protrude from the end faces of both ends of the housing 100. For example... Figure 2 As shown, one end of the push rod extends into the manual operation component 320. By pressing the manual operation component 320, the push rod can be pushed downward, thereby controlling the pilot valve 600 to change its on / off state.

[0043] The armature assembly 500 is mounted on the magnetic guide cylinder 220. The magnetic guide cylinder 220, the guide cylinder 210, and the pole shoe together form the magnetic yoke, which can improve the magnetic conductivity between the iron frame assembly 200 and the armature assembly 500, increase the electromagnetic force output by the armature assembly 500, and thus ensure that the electromagnet structure can reduce the volume of the magnetic yoke while maintaining the same output electromagnetic force and performance.

[0044] In this embodiment, by integrating the manual operation component 320 and the electronic control component 400 into the end cap component 300, the structure of the housing 100 is simplified, and the sealing performance can be ensured by pressing the end faces of the end cap component 300 and the housing 100 together, thus solving the problem of low injection molding precision of non-metallic materials.

[0045] Based on the above embodiments, another embodiment of this utility model introduces an electromagnet structure for a mining electromagnetic pilot valve.

[0046] Because non-metallic materials have low processing precision during injection molding, it is difficult to guarantee the sealing performance of critical locations. Therefore, in order to improve the sealing performance between the cover plate 310 and the housing 100, the housing 100 is provided with countersunk grooves 130 on both sides of the second receiving cavity 120. Nuts are embedded in the countersunk grooves 130 for installing the cover plate 310.

[0047] Meanwhile, the end face of the cover plate 310 is provided with a first sealing groove 313. The first sealing groove 313 surrounds the outer periphery of the two first through holes 311. When the cover plate 310 abuts against the housing 100, the sealing ring is embedded in the first sealing groove 313, and the sealing ring can be squeezed by the cover plate 310 and the housing 100 to improve the sealing performance.

[0048] Furthermore, to improve the sealing performance between the housing 100 and the pilot valve 600, the housing 100 is provided with a mounting channel 140 parallel to the first receiving cavity 110. The mounting channel 140 extends from one end face of the housing 100 to the other end face of the housing 100 and is used for threading bolts.

[0049] Meanwhile, a second sealing groove 150 is provided on the end face of the housing 100. The second sealing groove 150 surrounds the outer periphery of the openings of the two first receiving cavities 110. When the housing 100 is connected to the pilot valve 600, a sealing ring is embedded in the second sealing groove 150. The sealing ring undergoes elastic deformation due to the compression of the housing 100 and the pilot valve 600, which can better seal the gap between the housing 100 and the pilot valve 600.

[0050] On the other hand, in the embodiments of this utility model, a mining electromagnetic pilot valve is also introduced. The mining electromagnetic pilot valve includes a pilot valve 600 and the electromagnet structure described in any of the above embodiments.

[0051] The pilot valve 600 is connected to the end face of the housing 100 where the second receiving cavity 120 is provided.

[0052] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0054] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms are not limited to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0056] 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.

Claims

1. An electromagnet structure for a mining electromagnetic pilot valve, characterized in that, include: The housing (100) is provided with a first receiving cavity (110) and a second receiving cavity (120), the opening of the first receiving cavity (110) and the opening of the second receiving cavity (120) are respectively located on the end faces of both ends of the housing (100); The iron frame assembly (200) is installed inside the first receiving cavity (110); An armature assembly (500) is embedded in the iron frame assembly (200). An end cap assembly (300) is disposed on the end face of the housing (100) and covers the opening of the second receiving cavity (120); An electronic control component (400) is embedded in the second receiving cavity (120); The housing (100) is injection molded from a non-metallic material, and the bottom surface of the first receiving cavity (110) partially overlaps with the bottom surface of the second receiving cavity (120) to form a connecting channel.

2. The electromagnet structure of the mining electromagnetic pilot valve according to claim 1, characterized in that, The iron frame assembly (200) includes a guide cylinder (210), and a flange plate (211) is provided on the outer peripheral surface of the guide cylinder (210). The flange plate (211) is in contact with the bottom surface of the first receiving cavity (110), and a wiring hole (212) is provided on the flange plate (211) at a position corresponding to the communicating channel. The armature assembly (500) includes an armature and a coil. The armature is mounted on the guide cylinder (210), and the coil is electrically connected to the electronic control assembly (400) through the wiring hole (212).

3. The electromagnet structure of the mining electromagnetic pilot valve according to claim 2, characterized in that, The iron frame assembly (200) also includes a magnetic tube (220), which is embedded in the first receiving cavity (110) and sleeved with the flange plate (211).

4. The electromagnet structure of the mining electromagnetic pilot valve according to any one of claims 1 to 3, characterized in that, The end cap assembly (300) includes: The cover plate (310) is injection molded from a non-metallic material, and the cover plate (310) is provided with two first through holes (311). A manual operation component (320) is embedded in the first through hole (311). When the cover plate (310) is installed on the housing (100), the central axis of the first through hole (311) coincides with the central axis of the first receiving cavity (110).

5. The electromagnet structure of the mining electromagnetic pilot valve according to claim 4, characterized in that, The cover plate (310) is also provided with a second through hole (312), which is located between the two first through holes (311); The electronic control assembly (400) includes: A circuit board (410) is embedded in the second receiving cavity (120); A socket (420), one end of which is connected to the second through hole (312).

6. The electromagnet structure of the mining electromagnetic pilot valve according to claim 5, characterized in that, The housing (100) has countersunk grooves (130) on both sides of the second receiving cavity (120), and nuts are embedded in the countersunk grooves (130) for installing the cover plate (310).

7. The electromagnet structure of the mining electromagnetic pilot valve according to claim 6, characterized in that, The housing (100) is provided with a mounting channel (140) parallel to the first receiving cavity (110). The mounting channel (140) extends from one end face of the housing (100) to the other end face of the housing (100) and is used to pass through bolts.

8. The electromagnet structure of the mining electromagnetic pilot valve according to claim 6, characterized in that, The end face of the cover plate (310) is provided with a first sealing groove (313), which surrounds the outer periphery of the two first through holes (311).

9. The electromagnet structure of the mining electromagnetic pilot valve according to claim 8, characterized in that, The end face of the housing (100) is provided with a second sealing groove (150), which surrounds the outer periphery of the two first receiving cavities (110).

10. A mining electromagnetic pilot valve, characterized in that, The electromagnet structure as described in any one of claims 1 to 9 further includes a pilot valve (600) connected to the end face of the opening in the housing (100) where the second receiving cavity (120) is provided.

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