Novel hydraulic motor

Abstract

The utility model relates to the technical field of hydraulic motors, and discloses a novel hydraulic motor which comprises a hydraulic motor body, one side of the hydraulic motor body is provided with an oil outlet pipe, the other side of the hydraulic motor body is provided with an oil inlet pipe, one end of the oil inlet pipe is provided with a filter box, and the inner wall of the filter box is slidably connected with a filter box. An oil injection port and an oil discharge port are formed in the surface of the filter box, a filter screen is arranged on the inner wall of the oil discharge port, and a top cover is arranged at the top end of the filter box. Impurities are filtered through the filter screen in the filter box, the impurities can be blocked by the filter screen and accumulated in the filter box, the filter box is pulled upwards through the top cover, the filter box is promoted to slide out along the inner wall of the sealing groove, and therefore the filter box is taken down, the filter screen is backwashed through clean water, the impurities are poured out through the oil injection opening, and impurity cleaning is completed very conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic motors, in particular to a novel hydraulic motor. Background Art

[0002] Hydraulic motor is an actuator of hydraulic system, which converts the liquid pressure energy provided by hydraulic pump into mechanical energy (torque and speed) of its output shaft. Hydraulic motor is mainly used in injection molding machinery, ships, hoists, coal mining machinery, metallurgical machinery, marine machinery, petrochemical industry and port machinery.

[0003] Among them, the "new type of hydraulic motor" disclosed in the application number "CN202122524874.5" "comprises a hydraulic motor and a mounting seat, the mounting seat is arranged on the lower side of the hydraulic motor, and a plurality of slots are provided at the inner bottom end of the mounting seat, an adjusting disk is provided inside the mounting seat, a plurality of blocks are fixedly provided on the lower surface of the adjusting disk, and the plurality of blocks are matched with the corresponding slots, a connecting column is fixedly provided in the middle part of the lower surface of the hydraulic motor, the lower end of the connecting column is fixedly connected to the upper surface of the adjusting disk, a rotating ring is movably sleeved on the outer side of the connecting column, and the rotating ring is rotatably connected to the inner side wall of the upper end of the mounting seat, a plurality of limit pins are fixedly provided on the lower surface of the rotating ring, and a plurality of limit grooves are provided on the upper surface of the adjusting disk, and the plurality of limit pins are matched with the corresponding limit grooves. The utility model can quickly and conveniently adjust the installation direction and is easy to use." After further searching, it was found that the "new type of hydraulic motor housing" disclosed in its application number "CN202321149733.2" "includes a housing member, a front end cover and a rear end cover are respectively installed at both ends of the housing member, the motor shaft in the inner cavity of the housing member passes through the outside of the front end cover, and the front end cover has a cylindrical barrel passing through itself at the position of the transverse center axis, and a sealing bearing that is interference fit with the motor shaft is embedded in one end of the cylindrical barrel located on the outside of the front end cover, and an anti-leakage oil air bag ring is embedded in the other end of the cylindrical barrel, and a groove for the installation of the anti-leakage oil air bag ring is opened in the interior of the cylindrical barrel. The new type of hydraulic motor housing can seal the inner cavity of the housing member to prevent oil leakage and improve its service life. At the same time, a shock-absorbing mechanism is provided at the bottom of the mounting support at the lower part of the housing member, and the shock-absorbing mechanism can reduce the shock of the housing member and the internal components of the hydraulic motor, thereby improving its installation stability."

[0004] However, the above two methods still have the following defects: the hydraulic oil entering the hydraulic motor body cannot be filtered, and the accumulation of impurities easily causes the components inside the hydraulic motor body to be worn. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a novel hydraulic motor, which has the advantage of filtering the hydraulic oil entering the hydraulic motor body and solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a novel hydraulic motor comprises a hydraulic motor body, an oil outlet pipe is arranged on one side of the hydraulic motor body, an oil inlet pipe is arranged on the other side of the hydraulic motor body, a filter box is arranged at one end of the oil inlet pipe, a filter box is slidably connected to the inner wall of the filter box, an oil filling port and an oil discharge port are respectively opened on the surface of the filter box, a filter screen is arranged on the inner wall of the oil discharge port, a top cover is arranged on the top end of the filter box, a sealing ring is arranged between the filter box and the top cover, a sealing block is arranged at the bottom end of the filter box, and an anti-detachment component is arranged at the top end of the filter box.

[0007] As a preferred technical solution of the utility model, a limit seat is provided on the inner wall of the bottom end of the filter box, a through hole and a sealing groove engaged with a sealing ring are respectively provided on the surface of the filter box, and two anti-rotation grooves are provided on the inner wall of the through hole, sealing strips are embedded on the inner wall of the front side and the inner wall of the back side of the filter box, the contact parts of the two sealing strips and the sealing groove and the filter box are slidably connected, the contact parts of the two sealing strips and the limit seat are slidably connected, and a handle is provided on the surface of the top cover.

[0008] As a preferred technical solution of the utility model, a groove engaged with the sealing block is provided on the surface of the limit seat, the front side of the sealing block is slidably connected to the back side of one of the sealing strips, the back side of the sealing block is slidably connected to the front side of the other sealing strip, and the two sealing strips, the sealing block and the sealing ring are all made of nitrile rubber material.

[0009] As a preferred technical solution of the utility model, the anti-dropping component includes a connecting seat, a reversing component and two slots, the connecting seat is arranged at the top of the filter box, a dovetail groove is opened at the top of the connecting seat, the inner wall of the dovetail groove is rotatably connected with a bidirectional screw rod through a bearing, the surface of the bidirectional screw rod is threadedly connected with two dovetail blocks sliding with the dovetail groove through a screw nut, and the two slots are both opened on the surface of the top cover.

[0010] As a preferred technical solution of the utility model, the top ends of the two dovetail grooves are provided with L-shaped plates, the inner wall of the front side of one of the L-shaped plates and the inner wall of the back side of the other L-shaped plate are provided with anti-slip blocks engaged with the slots, the bottom ends of the two anti-slip blocks are provided with inclined surfaces, and one end of the bidirectional screw rod passes through the inner wall of the front side of the connecting seat and is placed outside the connecting seat.

[0011] As a preferred technical solution of the present utility model, the commutation assembly includes a U-shaped frame, the U-shaped frame is arranged on the front of the filter box, a worm is rotatably connected to the inner wall of the U-shaped frame through a bearing, one end of the worm penetrates through the inner wall of one side of the U-shaped frame and is provided with a knob, a worm gear is meshed with the surface of the worm, the inner wall of the worm gear is connected to the surface of a bidirectional lead screw, the worm gear is placed outside the dovetail groove, and one end of the bidirectional lead screw is rotatably connected to the inner wall of the U-shaped frame through a bearing.

[0012] As a preferred technical solution of the present utility model, an oil injection pipe is arranged on one side of the filter box, the inside of the oil injection pipe is communicated with the inside of the through hole, a piston ring is slidably connected to the inner wall of the oil injection pipe, an oil guide pipe is arranged on the inner wall of the piston ring, one end of the oil guide pipe is placed inside the filter box, a return spring is arranged between the piston ring and the filter box, and the return spring is sleeved outside the oil guide pipe.

[0013] As a preferred technical solution of the present utility model, sliding plates are slidably connected to the inner walls of the two anti-rotation grooves, the surfaces of the two sliding plates are connected to the surface of the oil guide pipe, and the return spring is sleeved outside the two sliding plates.

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

[0015] 1. For this new type of hydraulic motor, impurities are filtered by the filter screen inside the filter box. The impurities will be blocked by the filter screen and accumulate inside the filter box. Pull the filter box upward through the top cover, so that the filter box slides out along the inner wall of the sealing groove, and then the filter box can be removed. Use clean water to backwash the filter screen, and pour out the impurities through the oil injection port to complete the cleaning of the impurities, which is very convenient.

[0016] 2. For this new type of hydraulic motor, the two anti-detachment blocks are driven to move by the bidirectional lead screw, two dovetail blocks and two L-shaped plates, so that the two anti-detachment blocks are inserted into the two card slots to complete the fixation of the top cover and the filter box, preventing the filter box from detaching from the filter tank due to the impact of hydraulic oil. When the two anti-detachment blocks slide into the card slots, they can push the top cover downward through the inclined surface, thereby pressing the sealing ring and the sealing block to enhance the sealing effect.

[0017] 3. For this new type of hydraulic motor, the worm is rotated through the knob, and the worm will drive the bidirectional lead screw to rotate through the worm gear, changing the force application position for driving the bidirectional lead screw, avoiding the collision between the moving L-shaped plate and the hand used to drive the bidirectional lead screw, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a cross-sectional structural schematic diagram of the present utility model;

[0020] Figure 3 For this utility model Figure 2 A is an enlarged structural diagram;

[0021] Figure 4 For this utility model Figure 2 The enlarged structural diagram at B in FIG.

[0022] Figure 5 It is a schematic diagram of the side cross-sectional structure of the filter box of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the connecting seat of the utility model.

[0024] In the figure: 1. hydraulic motor body; 2. oil outlet pipe; 3. oil inlet pipe; 4. filter box; 5. filter box; 6. anti-drop assembly; 601. connecting seat; 602. slot; 603. dovetail groove; 604. two-way screw; 605. dovetail block; 606. L-shaped plate; 607. anti-drop block; 7. reversing assembly; 701. L-shaped frame; 702. worm; 703. knob; 704. worm gear; 8. oil filling port; 9. oil drain port; 10. filter; 11. top cover; 12. sealing ring; 13. sealing block; 14. limit seat; 15. reset spring; 16. sealing groove; 17. sealing strip; 18. groove; 19. oil filling pipe; 20. piston ring; 21. oil guide pipe; 22. anti-rotation groove; 23. slide plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 A new type of hydraulic motor comprises a hydraulic motor body 1, an oil outlet pipe 2 is fixedly arranged on one side of the hydraulic motor body 1, an oil inlet pipe 3 is fixedly arranged on the other side of the hydraulic motor body 1, a filter box 4 is fixedly arranged at one end of the oil inlet pipe 3, a filter box 5 is slidably connected to the inner wall of the filter box 4, an oil filling port 8 and an oil discharge port 9 are respectively opened on the surface of the filter box 5, a filter screen 10 is fixedly arranged on the inner wall of the oil discharge port 9, a top cover 11 is fixedly arranged on the top of the filter box 5, a sealing ring 12 is fixedly arranged between the filter box 5 and the top cover 11, a sealing block 13 is fixedly arranged on the bottom end of the filter box 5, and an anti-drop component 6 is arranged on the top of the filter box 5.

[0027] A limit seat 14 is fixedly provided on the inner wall at the bottom end of the filter box 4, and a through hole and a sealing groove 16 engaged with the sealing ring 12 are respectively provided on the surface of the filter box 4, and two anti-rotation grooves 22 are provided on the inner wall of the through hole. Sealing strips 17 are embedded in the inner wall of the front side and the inner wall of the back side of the filter box 4, and the contact parts of the two sealing strips 17 and the sealing groove 16 with the filter box 5 are slidably connected, and the contact parts of the two sealing strips 17 and the limit seat 14 are slidably connected. A handle is fixedly provided on the surface of the top cover 11, which fits with the filter box 4 through the two sealing strips 17 to enhance the sealing performance, and the sealing ring 12 is inserted into the sealing groove 16, thereby sealing the gap between the top cover 11 and the filter box 4 to prevent oil leakage.

[0028] A groove 18 engaged with the sealing block 13 is provided on the surface of the limit seat 14, the front side of the sealing block 13 is slidably connected to the back side of one of the sealing strips 17, and the back side of the sealing block 13 is slidably connected to the front side of the other sealing strip 17, and the two sealing strips 17, the sealing block 13 and the sealing ring 12 are all made of nitrile rubber material, and the sealing block 13 is inserted into the groove 18 to achieve sealing between the bottom end of the filter box 5 and the inner wall of the bottom end of the filter box 4.

[0029] The anti-drop assembly 6 includes a connecting seat 601, a reversing assembly 7 and two slots 602. The connecting seat 601 is fixedly arranged on the top of the filter box 4. A dovetail groove 603 is provided on the top of the connecting seat 601. The inner wall of the dovetail groove 603 is rotatably connected with a bidirectional screw rod 604 through a bearing. The surface of the bidirectional screw rod 604 is threadedly connected with two dovetail blocks 605 that slide with the dovetail groove 603 through a screw nut. The two slots 602 are both provided on the surface of the top cover 11. By rotating the bidirectional screw rod 604, the bidirectional screw rod 604 drives the two dovetail blocks 605 to slide.

[0030] The tops of the two dovetail grooves 603 are fixed with L-shaped plates 606, the inner wall of the front side of one L-shaped plate 606 and the inner wall of the back side of the other L-shaped plate 606 are fixed with anti-dropping blocks 607 that engage with the slot 602, and the bottom ends of the two anti-dropping blocks 607 are provided with inclined surfaces. One end of the bidirectional screw rod 604 passes through the inner wall of the front side of the connecting seat 601 and is placed outside the connecting seat 601. When the bidirectional screw rod 604 rotates, the moving directions of the two dovetail blocks 605 are On the contrary, the two dovetail blocks 605 will drive the two L-shaped plates 606 to move, and the two L-shaped plates 606 will drive the two anti-slip blocks 607 to move, prompting the two anti-slip blocks 607 to be inserted into the two slots 602, thereby completing the fixation of the top cover 11 and the filter box 5 and preventing the filter box 5 from being separated from the filter box 4 due to the impact of the hydraulic oil. When sliding into the slots 602, the two anti-slip blocks 607 will push the top cover 11 downward through the inclined surface, thereby compressing the sealing ring 12 and the sealing block 13 to enhance the sealing effect.

[0031] The reversing assembly 7 includes a ⌚-shaped frame 701, which is fixedly arranged on the front side of the filter box 4. The inner wall of the ⌚-shaped frame 701 is rotatably connected to a worm 702 through a bearing. One end of the worm 702 penetrates the inner wall of one side of the ⌚-shaped frame 701 and is fixedly provided with a knob 703. The surface of the worm 702 is meshingly connected to a worm wheel 704. The inner wall of the worm wheel 704 is fixedly connected to the surface of the bidirectional lead screw 604. The worm wheel 704 is placed outside the dovetail groove 603. The inner wall of the ⌚-shaped frame 701 is rotatably connected to one end of the bidirectional lead screw 604 through a bearing. By turning the knob 703, the knob 703 drives the worm 702 to rotate. The worm 702 drives the bidirectional lead screw 604 to rotate through the worm wheel 704, thereby changing the force application position of the bidirectional lead screw 604 to avoid collision between the moving L-shaped plate 606 and the hand used to drive the bidirectional lead screw 604, which is safer.

[0032] An oil filling pipe 19 is fixedly provided on one side of the filter box 4. The interior of the oil filling pipe 19 is connected to the interior of the through hole. A piston ring 20 is slidably connected to the inner wall of the oil filling pipe 19. An oil guide pipe 21 is fixedly provided on the inner wall of the piston ring 20. One end of the oil guide pipe 21 is placed inside the filter box 4. A return spring 15 is fixedly provided between the piston ring 20 and the filter box 4. The return spring 15 is sleeved on the outside of the oil guide pipe 21. Hydraulic oil will be pumped into the oil filling pipe 19. The hydraulic oil pushes the oil guide pipe 21 through the piston ring 20, so that one end of the oil guide pipe 21 passes through the oil filling port 8 and is placed inside the filter box 5. After the input of hydraulic oil is stopped, the return spring 15 extends and pushes the piston ring 20 to return to its original position.

[0033] The inner walls of the two anti-rotation grooves 22 are slidably connected with slide plates 23, the surfaces of the two slide plates 23 are fixedly connected to the surface of the oil guide pipe 21, and the return spring 15 is sleeved on the outside of the two slide plates 23. The anti-rotation grooves 22 guide the movement of the slide plates 23, and the slide plates 23 suppress the rotation of the oil guide pipe 21, thereby preventing the return spring 15 from being twisted and damaged as the oil guide pipe 21 rotates.

[0034] When in use, the hydraulic oil pushes the oil guide pipe 21 through the piston ring 20, so that one end of the oil guide pipe 21 passes through the oil filling port 8 and is placed inside the filter box 5. The hydraulic oil inside the filter box 5 passes through the filter screen 10 and is discharged from the oil discharge port 9, and then enters the inside of the oil inlet pipe 3 of the hydraulic motor body 1 to realize oil supply. Impurities will be blocked by the filter screen 10 and accumulate inside the filter box 5. When it is necessary to dump the impurities inside the filter box 5, turn the knob 703, the knob 703 drives the worm 702 to rotate, and the worm 702 drives the bidirectional screw 604 to rotate through the worm gear 704. The bidirectional screw 604 drives the two L-shaped plates 606 to move through the two dovetail blocks 605, and the two L-shaped plates 606 will drive the two anti-detachment blocks 607 to move, causing the two anti-detachment blocks 607 to disengage from the two slots 602, thereby releasing the fixation of the top cover 11 and the filter box 5. At this time, the top cover 11 is pulled upward by the handle, and the top cover 11 drives the filter box 5 to slide out along the inner wall of the sealing groove 16, so as to remove the filter box 5, use clean water to backwash the filter screen 10, and pour out impurities through the oil filling port 8 to complete the cleaning of impurities. It is very convenient. After drying the filter screen 10 and the inside of the filter box 5, the filter box 5 is reset.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic motor, comprising a hydraulic motor body (1), characterized in that: An oil outlet pipe (2) is provided on one side of the hydraulic motor body (1), an oil inlet pipe (3) is provided on the other side of the hydraulic motor body (1), a filter box (4) is provided at one end of the oil inlet pipe (3), a filter box (5) is slidably connected to the inner wall of the filter box (4), an oil filling port (8) and an oil discharge port (9) are respectively provided on the surface of the filter box (5), a filter screen (10) is provided on the inner wall of the oil discharge port (9), a top cover (11) is provided at the top end of the filter box (5), a sealing ring (12) is provided between the filter box (5) and the top cover (11), a sealing block (13) is provided at the bottom end of the filter box (5), and an anti-drop component (6) is provided at the top end of the filter box (5).

2. A novel hydraulic motor according to claim 1, characterized in that: The inner wall at the bottom end of the filter box (4) is provided with a limit seat (14), the surface of the filter box (4) is respectively provided with a through hole and a sealing groove (16) engaged with the sealing ring (12), and the inner wall of the through hole is provided with two anti-rotation grooves (22), the inner wall of the front side and the inner wall of the back side of the filter box (4) are both embedded with sealing strips (17), the contact parts of the two sealing strips (17) and the sealing groove (16) with the filter box (5) are both slidably connected, the contact parts of the two sealing strips (17) with the limit seat (14) are both slidably connected, and the surface of the top cover (11) is provided with a handle.

3. A novel hydraulic motor according to claim 2, characterized in that: A groove (18) engaged with the sealing block (13) is formed on the surface of the limiting seat (14); the front side of the sealing block (13) is slidably connected to the back side of one of the sealing strips (17); the back side of the sealing block (13) is slidably connected to the front side of the other sealing strip (17); and the two sealing strips (17), the sealing block (13) and the sealing ring (12) are all made of nitrile rubber material.

4. A novel hydraulic motor according to claim 1, characterized in that: The anti-drop assembly (6) comprises a connecting seat (601), a reversing assembly (7) and two clamping grooves (602); the connecting seat (601) is arranged at the top end of the filter box (4); a dovetail groove (603) is provided at the top end of the connecting seat (601); a bidirectional screw rod (604) is rotatably connected to the inner wall of the dovetail groove (603) via a bearing; two dovetail blocks (605) that slide with the dovetail groove (603) are threadedly connected to the surface of the bidirectional screw rod (604) via a screw nut; and the two clamping grooves (602) are both provided on the surface of the top cover (11).

5. A novel hydraulic motor according to claim 4, characterized in that: The top ends of the two dovetail grooves (603) are each provided with an L-shaped plate (606), the inner wall on the front side of one of the L-shaped plates (606) and the inner wall on the back side of the other L-shaped plate (606) are each provided with an anti-slip block (607) engaged with the slot (602), the bottom ends of the two anti-slip blocks (607) are each provided with an inclined surface, and one end of the bidirectional screw rod (604) passes through the inner wall on the front side of the connecting seat (601) and is placed outside the connecting seat (601).

6. A novel hydraulic motor according to claim 4, characterized in that: The reversing assembly (7) comprises a shaped frame (701), wherein the shaped frame (701) is arranged on the front side of the filter box (4), and the inner wall of the shaped frame (701) is rotatably connected to a worm (702) via a bearing, one end of the worm (702) passes through the inner wall of one side of the shaped frame (701) and is provided with a knob (703), the surface of the worm (702) is meshingly connected to a worm wheel (704), the inner wall of the worm wheel (704) is connected to the surface of a bidirectional lead screw (604), the worm wheel (704) is placed outside the dovetail groove (603), and the inner wall of the shaped frame (701) is rotatably connected to one end of the bidirectional lead screw (604) via a bearing.

7. A novel hydraulic motor according to claim 2, characterized in that: An oil injection pipe (19) is provided on one side of the filter box (4), the interior of the oil injection pipe (19) is connected to the interior of the through hole, a piston ring (20) is slidably connected to the inner wall of the oil injection pipe (19), an oil guide pipe (21) is provided on the inner wall of the piston ring (20), one end of the oil guide pipe (21) is placed inside the filter box (4), a return spring (15) is provided between the piston ring (20) and the filter box (4), and the return spring (15) is sleeved on the outside of the oil guide pipe (21).

8. A novel hydraulic motor according to claim 7, characterized in that: The inner walls of the two anti-rotation grooves (22) are slidably connected with slide plates (23), the surfaces of the two slide plates (23) are connected to the surface of the oil guide pipe (21), and the return spring (15) is sleeved on the outside of the two slide plates (23).

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