Hydraulic motor reversing valve body with built-in sealing structure

Abstract

The utility model relates to the technical field of reversing valves, and discloses a hydraulic motor reversing valve body with a built-in sealing structure, which comprises a shell, an adjusting component for adjusting the flow direction of fluid is arranged in the shell, a support ring is arranged at one end of the shell, a plurality of clamping grooves are formed in one side of the support ring, and the sealing structure is arranged in the shell. A valve deck is fixedly installed on one side of the supporting ring through bolts, a clamping block clamped with the clamping groove is arranged on one side of the valve deck, and a support is arranged on the other side of the valve deck. The adjusting assembly can be supported through the driving assembly, the stability of the adjusting assembly can be kept, under the action of fluid pressure, the adjusting assembly can keep the sealing performance of the interior of the shell, fluid leakage is avoided, the adjusting assembly is driven by the driving assembly to move horizontally, reversing adjustment can be conducted on fluid, and self-locking of the position of the adjusting assembly can be achieved; and loosening is not easy.

Description

Technical Field

[0001] The utility model relates to the technical field of reversing valves, in particular to a hydraulic motor reversing valve body with an internal sealing structure. Background Technique

[0002] A reversing valve is a direction control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cut-off, and reversal of the hydraulic oil flow, as well as pressure unloading and sequential action control. It is a direction control valve that relies on the relative movement of the spool and the valve body. By connecting the reversing valve to a hydraulic motor, the flow direction of the hydraulic oil can be changed, thereby controlling the start, reversal, and stop of the hydraulic motor.

[0003] The "reversing valve" disclosed in its application number "202221445310.0" "includes a reversing valve body. One end of the reversing valve body is provided with a first valve cover, and the other end of the reversing valve body is provided with a second valve cover. Installation cavities are opened on both sides of the reversing valve body facing the first valve cover and the second valve cover, and a plurality of diversion holes are circumferentially distributed inside the installation cavity along the center point of the installation cavity. Through the corresponding cooperation of each structure, the utility model facilitates the change of the positions of the first reversing holes and the second reversing holes on the first reversing piece and the second reversing piece. At the same time, the added first reversing piece and second reversing piece can effectively prevent gaps from existing between the reversing valve body, the first valve cover, and the second valve cover, avoid solder from penetrating into the reversing valve body, the first valve cover, and the second valve cover, facilitate its welding, and avoid material leakage during subsequent use".

[0004] However, the above method still has the following defects: Although the fluid can be reversed through the settings of the first reversing piece and the second reversing piece, it is difficult to ensure the tightness between the diversion holes and the reversing holes. Under the action of the fluid pressure, fluid leakage is likely to occur, and the reversing handle needs to be rotated manually, without a self-locking function, which easily causes the loosening of the first reversing piece and the second reversing piece. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a hydraulic motor reversing valve body with an internal sealing structure, which has the advantages of good tightness and not being easily loosened, and solves the problems raised in the above background technique.

[0006] The present utility model provides the following technical solution: A hydraulic motor reversing valve body with an internal sealing structure, including a housing. An adjusting component for adjusting the fluid flow direction is provided inside the housing. A support ring is provided at one end of the housing. A plurality of card slots are formed on one side of the support ring. A valve cover is fixedly installed on one side of the support ring through bolts. A clamping block that is engaged with the card slots is provided on one side of the valve cover. A bracket is provided on the other side of the valve cover. A driving component for driving the adjusting component is provided inside the bracket. A square sleeve for connecting the driving component and the adjusting component is provided between the driving component and the adjusting component.

[0007] As a preferred technical solution of the present utility model, the adjusting component includes a valve core. Two limiting slots are formed on the surface of the valve core. A sealing rubber sleeve is engaged and connected inside the limiting slots. Two adjusting ports for adjusting the fluid flow rate are formed on the surface of the valve core.

[0008] As a preferred technical solution of the present utility model, a connecting rod is welded to one end of the valve core. A square block is welded to one end of the connecting rod. The square block is fixedly connected to the inside of the square sleeve through bolts.

[0009] As a preferred technical solution of the present utility model, a sealing gasket is engaged and connected to one side of the support ring. The sealing gasket is located between the support ring and the valve cover. A rod slot is formed in the middle of the valve cover. The connecting rod is slidably connected to the rod slot. A groove is provided on one side of the rod slot. A sealing ring is engaged and connected inside the groove. The sealing ring is sleeved on the connecting rod.

[0010] As a preferred technical solution of the present utility model, valve nozzles are fixedly connected to both the top and bottom of the housing. A conduit connected to the housing is provided on one side of one of the valve nozzles.

[0011] As a preferred technical solution of the present utility model, the driving component includes a motor and a support plate. A worm is connected to the output shaft of the motor. The worm is meshed with a worm gear. A lead screw is provided on one side of the worm gear. A slide plate is threadedly connected to the lead screw. Support rods are fixedly provided at both the top and bottom on one side of the slide plate. One end of the support rods is fixedly connected to one side of the support plate. The middle of the other side of the support plate is fixedly connected to one side of the square sleeve.

[0012] As a preferred technical solution of the present utility model, both ends of the worm are rotatably connected to a support. One side of the support and one side of the motor are fixedly connected to the inner wall of one side of the bracket. Guide rails are slidably connected to both the top and bottom of the slide plate. The inner walls of the top and bottom of the bracket are respectively fixedly connected to the two guide rails.

[0013] As a preferred technical solution of the present utility model, a protective cover is fixedly arranged inside the bracket. Both the motor and the lead screw are located inside the protective cover. The surface of the protective cover is fixedly connected with a protective cover through screws. The support rod is slidably connected to one side of the protective cover.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. The driving component can support the adjusting component, maintaining the stability of the adjusting component. Under the action of fluid pressure, the adjusting component can maintain the sealing inside the housing, avoiding fluid leakage. By driving the adjusting component to move horizontally through the driving component, the fluid can be reversely adjusted, and its position can be self-locked, not prone to loosening.

[0016] 2. The valve cover is fixed by bolts and supplemented by clamping of the clamping block and the clamping groove, which can ensure the stability and firmness of the valve cover and can be disassembled. By disassembling the valve cover, the adjusting component can be taken out, facilitating disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0018] Figure 2 is the second structural schematic diagram of the present utility model;

[0019] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0020] Figure 4 is the structural schematic diagram of the adjusting component of the present utility model;

[0021] Figure 5 is the structural schematic diagram of the valve cover of the present utility model;

[0022] Figure 6 is the structural schematic diagram of the driving component of the present utility model.

[0023] In the figure: 1. Housing; 2. Valve nozzle; 3. Conduit; 4. Adjusting component; 401. Spool; 402. Limiting groove; 403. Adjusting port; 404. Sealing rubber sleeve; 405. Connecting rod; 406. Square block; 5. Square sleeve; 6. Support ring; 7. Valve cover; 8. Clamping groove; 9. Sealing gasket; 10. Bracket; 11. Clamping block; 12. Rod groove; 13. Groove; 14. Sealing ring; 15. Protective cover; 16. Driving component; 1601. Motor; 1602. Worm; 1603. Worm gear; 1604. Lead screw; 1605. Slide plate; 1606. Support rod; 1607. Support plate; 1608. Support; 1609. Guide rail; 17. Protective cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 6 , a hydraulic motor reversing valve body with an internal sealing structure, including a housing 1. An adjusting assembly 4 for adjusting the fluid flow direction is provided inside the housing 1. A support ring 6 is welded to one end of the housing 1. A plurality of card slots 8 are provided on one side of the support ring 6. A valve cover 7 is fixedly installed on one side of the support ring 6 by bolts. A clamping block 11 that engages with the card slot 8 is provided on one side of the valve cover 7. By fixing the valve cover 7 with bolts and supplementing the clamping of the clamping block 11 and the card slot 8, the stability and firmness of the valve cover 7 can be ensured, and it can be disassembled. By disassembling the valve cover 7, the adjusting assembly 4 can be taken out. A bracket 10 is welded to the other side of the valve cover 7. A driving assembly 16 for driving the adjusting assembly 4 is provided inside the bracket 10. The adjusting assembly 4 can be supported by the driving assembly 16, and the stability of the adjusting assembly 4 can be maintained. By driving the adjusting assembly 4 to move horizontally by the driving assembly 16, the fluid can be reversely adjusted. A square sleeve 5 for connecting them is provided between the driving assembly 16 and the adjusting assembly 4;

[0026] In this embodiment, preferably, the adjusting assembly 4 includes a valve core 401. Two limiting grooves 402 are provided on the surface of the valve core 401. A sealing rubber sleeve 404 is snap-fitted inside the limiting groove 402. The sealing rubber sleeve 404 can be limited by the limiting groove 402 to prevent it from falling off. The sealing rubber sleeve 404 can seal the adjusting port 403 to prevent fluid leakage. Two adjusting ports 403 for adjusting the fluid flow rate are provided on the surface of the valve core 401. One end of the valve core 401 is welded with a connecting rod 405. One end of the connecting rod 405 is welded with a square block 406. The square block 406 is fixedly connected to the inside of the square sleeve 5 by bolts. The connecting rod 405 can be fixed on the square sleeve 5 through the square block 406. By facilitating the disassembly of the valve core 401 and driving the valve core 401 to move the adjusting port 403 to different valve nozzles 2, the fluid can be reversed. A sealing gasket 9 is snap-fitted on one side of the support ring 6. The sealing gasket 9 is located between the support ring 6 and the valve cover 7. The valve cover 7 can be sealed by the sealing gasket 9. A rod groove 12 is provided in the middle of the valve cover 7. The connecting rod 405 is slidably connected to the rod groove 12. A groove 13 is provided on one side of the rod groove 12. A sealing ring 14 is snap-fitted inside the groove 13. The sealing ring 14 is sleeved on the connecting rod 405. The gap between the connecting rod 405 and the rod groove 12 can be sealed by the sealing ring 14;

[0027] In this embodiment, preferably, the driving assembly 16 includes a motor 1601 and a support plate 1607. A worm 1602 is connected to the output shaft of the motor 1601. The worm 1602 is meshed with a worm wheel 1603. A lead screw 1604 is provided on one side of the worm wheel 1603. The lead screw 1604 is threadedly connected to a slide plate 1605. At the top and bottom of one side of the slide plate 1605, support rods 1606 are fixedly provided. One end of the support rod 1606 is fixedly connected to one side of the support plate 1607. The middle of the other side of the support plate 1607 is fixedly connected to one side of the square sleeve 5. By driving the worm 1602 with the motor 1601, the worm 1602 can drive the lead screw 1604 to rotate through the worm wheel 1603. The lead screw 1604 can convert the rotary motion into the linear motion of the slide plate 1605, so as to control the horizontal movement of the slide plate 1605. Both ends of the worm 1602 are rotatably connected to a support 1608. The two ends of the worm 1602 can be supported by the support 1608. One side of the support 1608 and one side of the motor 1601 are fixedly connected to the inner wall of one side of the bracket 10. The top and bottom of the slide plate 1605 are both slidably connected to guide rails 1609. The inner walls of the top and bottom of the bracket 10 are respectively fixedly connected to the two guide rails 1609. The slide plate 1605 can be guided by the guide rails 1609. A protective cover 15 is fixedly provided inside the bracket 10. The motor 1601 and the lead screw 1604 are both located inside the protective cover 15. The protective cover 15 can provide protection for the motor 1601 and the lead screw 1604. The surface of the protective cover 15 is fixedly connected to a protective cap 17 by screws. The support rod 1606 is slidably connected to one side of the protective cover 15;

[0028] In this embodiment, preferably, valve nozzles 2 are fixedly connected to the top and bottom of the housing 1. A conduit 3 connected to the housing 1 is provided on one side of one of the valve nozzles 2. Through the valve nozzle 2 and the conduit 3, the movement of the fluid can be ensured, and the commutation of the fluid can be completed.

[0029] During use, first, the valve core 401 of the adjustment assembly 4 is placed into the housing 1. Then, the valve cover 7 is sleeved on the connecting rod 405 through the rod groove 12, and the latch 11 of the valve cover 7 is engaged with the card slot 8 of the support ring 6. The square block 406 can enter the inside of the square sleeve 5 and is fixed by bolts. After that, the valve cover 7 and the support ring 6 are fixedly connected by bolts. Finally, the valve nozzle 2 is connected to the pipeline, and the fluid can be conveyed through the housing 1. During the process of conveying the fluid, the sealing gasket 9 can seal the valve cover 7, the sealing ring 14 can seal the gap between the connecting rod 405 and the rod groove 12, the limiting groove 402 can limit the sealing rubber sleeve 404, and the sealing rubber sleeve 404 can seal the adjustment port 403. Under the action of the fluid pressure, the leakage of the fluid can be prevented, and the driving assembly 16 can lock the valve core 401 through the worm 1602 and the worm wheel 1603, so as to maintain its stability and not be easily loosened;

[0030] When it is necessary to reverse the conveyed fluid, the worm 1602 is driven by the motor 1601. The worm 1602 can drive the lead screw 1604 to rotate through the worm wheel 1603. The lead screw 1604 can convert the rotational motion into the linear motion of the slide plate 1605, so as to control the horizontal movement of the slide plate 1605. The guide rail 1609 and the support rod 1606 can guide the slide plate 1605, preventing the valve core 401 from tilting. The adjustment port 403 of the valve core 401 changes its position and is used in cooperation with different valve nozzles 2, so as to reverse the flow direction of the fluid. The operation is simple. When it is necessary to disassemble the valve core 401, first disassemble the square block 406 and the square sleeve 5, and then disassemble the valve cover 7, and then it can be taken out.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic motor reversing valve body with a built-in sealing structure, comprising a housing (1), characterized in that: Inside the housing (1), there is an adjustment component (4) for adjusting the fluid flow direction. One end of the housing (1) is provided with a support ring (6). On one side of the support ring (6), several card slots (8) are opened. On one side of the support ring (6), a valve cover (7) is fixedly installed by bolts. On one side of the valve cover (7), there is a block (11) that engages with the card slot (8). On the other side of the valve cover (7), there is a bracket (10). Inside the bracket (10), there is a driving component (16) for driving the adjustment component (4). Between the driving component (16) and the adjustment component (4), there is a square sleeve (5) for connecting them.

2. The hydraulic motor reversing valve body with a built-in sealing structure according to claim 1, characterized in that: The adjustment component (4) includes a valve core (401). On the surface of the valve core (401), two limit slots (402) are opened. Inside the limit slots (402), a sealing rubber sleeve (404) is engaged and connected. On the surface of the valve core (401), two adjustment ports (403) for adjusting the fluid flow rate are opened.

3. The hydraulic motor reversing valve body with a built-in sealing structure according to claim 2, characterized in that: One end of the valve core (401) is welded with a connecting rod (405). One end of the connecting rod (405) is welded with a square block (406). The square block (406) is fixedly connected to the inside of the square sleeve (5) by bolts.

4. The hydraulic motor reversing valve body with an internal sealing structure according to claim 3, characterized in that: One side of the support ring (6) is engaged and connected with a sealing gasket (9). The sealing gasket (9) is located between the support ring (6) and the valve cover (7). In the middle of the valve cover (7), a rod slot (12) is opened. The connecting rod (405) is slidably connected with the rod slot (12). On one side of the rod slot (12), there is a groove (13). Inside the groove (13), a sealing ring (14) is engaged and connected. The sealing ring (14) is sleeved on the connecting rod (405).

5. The hydraulic motor reversing valve body with a built-in sealing structure according to claim 1, characterized in that: Both the top and bottom of the housing (1) are fixedly connected with valve nozzles (2). On one side of one of the valve nozzles (2), there is a conduit (3) connected to the housing (1).

6. The hydraulic motor reversing valve body with an internal sealing structure according to claim 1, characterized in that: The driving component (16) includes a motor (1601) and a support plate (1607). The output shaft of the motor (1601) is connected with a worm (1602). The worm (1602) is meshed with a worm gear (1603). On one side of the worm gear (1603), there is a lead screw (1604). The lead screw (1604) is threadedly connected with a slide plate (1605). On the top and bottom of one side of the slide plate (1605), support rods (1606) are fixedly provided. One end of the support rods (1606) is fixedly connected to one side of the support plate (1607). In the middle of the other side of the support plate (1607), it is fixedly connected to one side of the square sleeve (5).

7. The hydraulic motor reversing valve body with an internal sealing structure according to claim 6, characterized in that: Both ends of the worm (1602) are rotatably connected with supports (1608). One side of the supports (1608) and one side of the motor (1601) are fixedly connected to the inner wall of one side of the bracket (10). The top and bottom of the slide plate (1605) are slidably connected with guide rails (1609). The inner walls of the top and bottom of the bracket (10) are respectively fixedly connected to the two guide rails (1609).

8. The hydraulic motor reversing valve body with a built-in sealing structure according to claim 6, characterized in that: A protective cover (15) is fixedly arranged inside the bracket (10). Both the motor (1601) and the lead screw (1604) are located inside the protective cover (15). A protective cap (17) is fixedly connected to the surface of the protective cover (15) by screws. The support rod (1606) is slidably connected to one side of the protective cover (15).

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