CN210289804U - Electric direct-push type reversing valve for hydraulic support - Google Patents
Electric direct-push type reversing valve for hydraulic support Download PDFInfo
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- CN210289804U CN210289804U CN201921034632.4U CN201921034632U CN210289804U CN 210289804 U CN210289804 U CN 210289804U CN 201921034632 U CN201921034632 U CN 201921034632U CN 210289804 U CN210289804 U CN 210289804U
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Abstract
The utility model discloses an electronic straight pushing-type switching-over valve for hydraulic support, which comprises a valve body, set up the case in the valve body and push away the electronic straight ware that pushes away of case at the valve body internal motion, electronic straight ware includes the casing, manual operation mechanism, electric operation mechanism and operation mode conversion piece, manual operation mechanism includes operating handle, the operating handle mounting panel, manual guide arm, stroke control pole and reset spring, electric operation mechanism includes motor and electric putter, the output shaft of motor links to each other with electric putter, operation mode conversion piece one end links to each other with electric putter, the other end is located stroke control pole top. The utility model discloses use manual operation mechanism or electric operating mechanism to drive the stroke control pole and directly promote cartridge valve case work to can promote multichannel case work, the liquid clearance of crossing of this valve is great, is difficult for scale deposit, jam.
Description
Technical Field
The utility model relates to a switching-over valve specifically is a hydraulic support is with electronic straight pushing-type switching-over valve belongs to hydraulic system technical field.
Background
At present, an electro-hydraulic control reversing valve is mostly used in an automatic coal mining working face of a coal mine, and in the using process of the reversing valve, due to the fact that a pilot loop is small in liquid passing gap, faults such as scaling and blocking occur frequently, production efficiency is further affected, maintenance cost is increased, and the automatic coal mining working face is a main technical problem in the coal mining automation process.
Disclosure of Invention
To prior art's defect, the utility model discloses a hydraulic support is with electronic straight pushing-type switching-over valve crosses the liquid clearance great, is difficult for scale deposit, jam.
In order to solve the technical problem, the utility model discloses a technical scheme is: the electric direct-push type reversing valve for the hydraulic support comprises a valve body, a valve core arranged in the valve body and an electric direct-push device for pushing the valve core to move in the valve body, wherein the electric direct-push device comprises a shell, a manual operating mechanism, an electric operating mechanism and an operating mode conversion block, the manual operating mechanism comprises an operating handle, an operating handle mounting plate, a manual guide rod, a stroke adjusting rod and a reset spring, the operating handle is rotatably connected with the operating handle mounting plate and is mounted at the upper part of an upper cover of the shell through the operating handle mounting plate, one end of the stroke adjusting rod is positioned in the shell, the other end of the stroke adjusting rod penetrates through a lower cover of the shell and extends to the upper part of the valve core, one end of the manual guide rod is positioned in the rotating range of the operating handle, the other end of the manual guide rod penetrates through the upper cover of the shell and extends to the upper part of, the output shaft of motor links to each other with electric putter, and operation mode conversion piece one end links to each other with electric putter, and the other end is located the stroke control pole top.
Furthermore, one end of the operation mode conversion block is fixedly connected with the electric push rod, a circular through hole is formed in the end portion above the stroke adjusting rod, and the manual guide rod penetrates through the circular through hole and extends to the position above the stroke adjusting rod.
Furthermore, a fixed block is arranged inside the shell, one end of the operation mode conversion block is rotatably connected with the fixed block, the other end of the operation mode conversion block is positioned above the stroke adjusting rod, and the electric push rod is connected with the middle part of the operation mode conversion block.
Furthermore, two valve cores are arranged in the valve body, two sets of electric operating mechanisms are arranged in the casing of the electric straight pushing device, the number of other parts except the operating handle and the operating handle mounting plate in the manual operating mechanism is two, the position of the operating handle comprises a home position, an A position and a B position, the two sets of electric operating mechanisms respectively drive the two valve cores to move in an electric operating mode, and the A position and the B position of the operating handle respectively correspond to the motion states of the two valve cores in a manual operating mode.
Furthermore, an antenna and a cable lead-in device are arranged on the shell, the antenna and the cable lead-in device are both connected with the motor driving circuit, and the motor driving circuit is arranged on the intrinsic safety type circuit board.
The utility model has the advantages that: the utility model discloses use manual operation mechanism or electric operating mechanism to drive the stroke control pole and directly promote cartridge valve case work to can promote multichannel case work, the liquid clearance of crossing of this valve is great, is difficult for scale deposit, jam.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of example 2;
FIG. 3 is a schematic structural view of embodiment 3;
in the figure: 1. the hydraulic control device comprises an oil cylinder, 2, a piston rod, 3, a valve body, 4, a cable leading-in device, 5, a lower cover, 6, a shell, 7, an upper cover, 8, an antenna, 9, an operating handle, 10, an operating handle mounting plate, 11, a motor, 12, a manual guide rod, 13, an electric push rod, 14, an operating mode conversion block, 15, a return spring, 16, a stroke adjusting rod, 17, a sealing gasket, 18, a valve core, 19, oil ports A, 20, oil ports B, 21 and a fixing block.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment discloses an electric direct-pushing reversing valve for a hydraulic support, which comprises a valve body 3, a valve core 18 arranged in the valve body 3, an electric direct pusher for pushing the valve core 18 to move in the valve body 3, and an oil cylinder 1 connected with an oil port of the valve body, wherein a piston rod 2 is arranged in the oil cylinder 1, as shown in fig. 1.
The electric straight pusher comprises a shell 6, a manual operating mechanism, an electric operating mechanism and an operating mode conversion block 14. The lower cover 5 of the shell of the electric straight pusher is connected with the valve body 3 through a bolt, a sealing gasket 17 is arranged between the lower cover and the valve body, a plurality of internal thread round holes are formed in the valve body 3, the valve core 18, the oil port A19 and the oil port B20 are of external thread cylindrical structures, and the valve core 18, the oil port A19 and the oil port B20 are respectively screwed into the valve body 3 to be integrated with the valve body.
The manual operation mechanism comprises an operation handle 9, an operation handle mounting plate 10, a manual guide rod 12, a stroke adjusting rod 16 and a return spring 15, wherein the operation handle mounting plate 10 is mounted on the shell upper cover 7 through bolts, and the operation handle 9 is mounted on the operation handle mounting plate 10 through a universal bearing to realize the rotary connection with the operation handle mounting plate 10. One end of a travel adjusting rod 16 is positioned in the shell 6, the other end of the travel adjusting rod penetrates through the lower shell cover 5 and extends to the position above the valve core 18, one end of a manual guide rod 12 is positioned in the rotating range of the operating handle, the other end of the manual guide rod penetrates through the upper shell cover 7 and extends to the position above the travel adjusting rod 16, and a return spring 15 is sleeved on the travel adjusting rod 16 and pressed between the lower shell cover 5 and an upper cap of the travel adjusting rod 16. The self-restoring force of the return spring 15 is greater than the sum of the weights of the manual control lever 12 and the adjusting lever 16.
The electric operating mechanism comprises a motor 11 and an electric push rod 13, the motor 11 is connected with the electric push rod 13 through a transmission gear, one end of an operating mode conversion block 14 is fixedly connected with the electric push rod 13, the other end of the operating mode conversion block is positioned above a stroke adjusting rod 16, a circular through hole is formed in the end of the operating mode conversion block, and a manual guide rod 12 penetrates through the circular through hole and extends to the position above the stroke adjusting rod 16.
In this embodiment, two valve cores 18 are arranged in the valve body, two sets of electric operating mechanisms are arranged in the casing of the electric straight pushing device, the number of other parts in the manual operating mechanism except the operating handle 9 and the operating handle mounting plate 10 is also two, the position of the operating handle 9 includes a home position, an a position and a B position, in the electric operating mode, the two sets of electric operating mechanisms respectively drive the two valve cores to move, and in the manual operating mode, the a position and the B position of the operating handle respectively correspond to the moving states of the two valve cores.
In this embodiment, be equipped with antenna and cable leading-in device on the casing, antenna and cable leading-in device all link to each other with motor drive circuit, and motor drive circuit arranges this ampere of type circuit board in. The control signal may be transmitted to the motor wirelessly via an antenna or in a wired manner via a cable lead-in.
In the embodiment, the shell is an explosion-proof shell, and in order to meet the use environment of a coal mine, the matching of the stroke adjusting rod, the manual guide rod and the shell meets the requirement of an explosion-proof standard.
The working process of the electric direct-pushing reversing valve in the embodiment is as follows:
the operating handle 9 has three positions during manual operation (reversing): home position, A position and B position.
When the operating handle 9 reaches the position A, the operating handle 9 presses the manual guide rod 12 downwards, so that the manual guide rod 12 pushes the stroke adjusting rod 16 to push the valve core 18 to fall down, at the moment, the emulsion at the oil port A19 flows out, the emulsion at the oil port B20 flows in, and the hydraulic cylinder extends;
when the operating handle 9 is reset to the original position, the stroke adjusting rod 16 is reset under the action of the reset spring 15, the pressed valve core is reset, at the moment, the emulsion of the oil port A19 stops flowing, and the hydraulic cylinder stops acting;
when the operating handle 9 rotates to the position B, the emulsion of the oil port B20 flows out, the emulsion of the oil port A flows in, and the hydraulic cylinder retracts;
when the operating handle 9 is reset to the original position, the emulsion stops flowing, and the hydraulic cylinder stops acting.
The process of extending the hydraulic cylinder to retracting the hydraulic cylinder is the manual reversing process of the reversing valve of the embodiment.
Electrically operated (reversing) process:
the system control signal is sent to the motor driving device through an antenna or a circuit leading-in device, the motor driving device drives the motor 11 to drive the electric push rod 13 to extend to a positioning stroke, the valve core 18 is pushed to fall through the operation mode conversion block 14 and the stroke adjusting rod 16, at the moment, the emulsion of the oil port A19 flows out, the emulsion of the oil port B flows in, and the hydraulic cylinder stretches.
When the electric push rod 13 retracts and resets, the stroke adjusting rod 16 resets through the reset spring 15, the valve core 18 resets, the emulsion stops flowing, and the hydraulic cylinder stops operating.
The motor above the oil port B20 acts, the valve core below the motor is pushed to fall through the stroke adjusting rod, at the moment, the emulsion of the oil port B flows out, the emulsion of the oil port A flows in, and the hydraulic cylinder retracts.
When the device is reset, the emulsion stops flowing, and the hydraulic cylinder stops operating.
The process of the hydraulic cylinder from extending to retracting is the electric reversing process of the reversing valve.
Example 2
In this embodiment, the operation mode conversion block adopts another structure. As shown in fig. 2, a fixing block 21 is further disposed inside the housing, one end of the operation mode conversion block 14 is rotatably connected to the fixing block 21, the other end of the operation mode conversion block is located above the stroke adjustment rod 16, and the electric push rod 13 is connected to the middle of the operation mode conversion block 14. When the motor is started, the electric push rod 13 pushes the operation mode conversion block 14, the operation mode conversion block 14 pushes the stroke adjusting rod 16, and then the valve core is pushed to fall, so that the action of the reversing valve is realized. The return is performed by a return spring 15. The rest is the same as in example 1, and will not be described again here.
Example 3
As shown in fig. 3, in the present embodiment, a plurality of electric straight thrusters are used to push the valve cores in a plurality of valve bodies to operate, thereby forming a valve group. The structure of the electric straight pushing device is the same as that of the electric straight pushing device described in embodiment 1, and the description thereof will not be repeated.
The foregoing description is only for the basic principles and preferred embodiments of the present invention, and modifications and substitutions made by those skilled in the art according to the present invention belong to the protection scope of the present invention.
Claims (5)
1. The electric direct-push reversing valve for the hydraulic support is characterized in that: the valve comprises a valve body, a valve core arranged in the valve body and an electric direct pusher for pushing the valve core to move in the valve body, wherein the electric direct pusher comprises a shell, a manual operating mechanism, an electric operating mechanism and an operating mode conversion block, the manual operating mechanism comprises an operating handle, an operating handle mounting plate, a manual guide rod, a stroke adjusting rod and a reset spring, the operating handle is rotatably connected with the operating handle mounting plate and is mounted at the upper part of an upper cover of the shell through the operating handle mounting plate, one end of the stroke adjusting rod is positioned in the shell, the other end of the stroke adjusting rod penetrates through a lower cover of the shell and extends to the upper part of the valve core, one end of the manual guide rod is positioned in the rotating range of the operating handle, the other end of the manual guide rod penetrates through the upper cover of the shell and extends to the upper part of the stroke adjusting rod, the reset spring is sleeved on the stroke, one end of the operation mode conversion block is connected with the electric push rod, and the other end of the operation mode conversion block is positioned above the stroke adjusting rod.
2. The electric direct-push type directional valve for a hydraulic bracket according to claim 1, characterized in that: one end of the operation mode conversion block is fixedly connected with the electric push rod, a circular through hole is formed in the end portion above the stroke adjusting rod, and the manual guide rod penetrates through the circular through hole and extends to the position above the stroke adjusting rod.
3. The electric direct-push type directional valve for a hydraulic bracket according to claim 1, characterized in that: the inside fixed block that still is equipped with of casing, operation mode conversion piece one end is rotated with the fixed block and is connected, and the other end is located stroke adjustment pole top, and electric putter connects the middle part of operation mode conversion piece.
4. The electric direct-push type directional valve for a hydraulic bracket according to claim 1, characterized in that: the valve body is internally provided with two valve cores, the shell of the electric direct pushing machine is internally provided with two sets of electric operating mechanisms, the number of other parts except an operating handle and an operating handle mounting plate in the manual operating mechanisms is also two, the position of the operating handle comprises an original position, an A position and a B position, the two sets of electric operating mechanisms respectively drive the two valve cores to move in an electric operating mode, and the A position and the B position of the operating handle respectively correspond to the motion states of the two valve cores in the manual operating mode.
5. The electric direct-push type directional valve for a hydraulic bracket according to claim 1, characterized in that: the shell is provided with an antenna and a cable lead-in device, the antenna and the cable lead-in device are both connected with a motor driving circuit, and the motor driving circuit is arranged on the intrinsic safety type circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921034632.4U CN210289804U (en) | 2019-07-04 | 2019-07-04 | Electric direct-push type reversing valve for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921034632.4U CN210289804U (en) | 2019-07-04 | 2019-07-04 | Electric direct-push type reversing valve for hydraulic support |
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| Publication Number | Publication Date |
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| CN210289804U true CN210289804U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921034632.4U Active CN210289804U (en) | 2019-07-04 | 2019-07-04 | Electric direct-push type reversing valve for hydraulic support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259491A (en) * | 2019-07-04 | 2019-09-20 | 山东中煤电器有限公司 | The electronic direct-push reversal valve of hydraulic support |
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2019
- 2019-07-04 CN CN201921034632.4U patent/CN210289804U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259491A (en) * | 2019-07-04 | 2019-09-20 | 山东中煤电器有限公司 | The electronic direct-push reversal valve of hydraulic support |
| CN110259491B (en) * | 2019-07-04 | 2024-06-11 | 山东中煤电器有限公司 | Electric direct-pushing reversing valve for hydraulic support |
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