Hydraulic pump universal driving shaft

Abstract

The utility model discloses a hydraulic pump universal driving shaft, which relates to the technical field of universal driving shafts and comprises a bottom plate, baffles are arranged on two sides of the top end of the bottom plate, through holes are formed in the surfaces of the two baffles, shaft rods are rotatably connected to the inner walls of the two through holes through sealing bearings, transmission grooves are formed in one ends of the shaft rods, and positioning blocks are arranged at the other ends of the shaft rods. An insertion hole is formed in one side of the positioning block; sleeves are arranged on the front surface and the back surface of the positioning block; the device has the advantages that the rotating shaft of the hydraulic pump slides into the inserting hole, the push rod is loosened, the reset spring can extend and push the pressing block to be inserted into the fixing hole in the rotating shaft of the hydraulic pump, transmission of the rotating shaft and the positioning block is achieved, two nuts do not need to be manually screwed in sequence through a screwdriver, and installation efficiency is improved; the baffle ring abuts against the anti-disengaging base and the pressing block through the arc-shaped groove, the first ball, the second ball and the third ball, and the fixing effect of the pressing block is guaranteed.

Description

Technical Field

[0001] The utility model relates to a linkage shaft, in particular to a hydraulic pump linkage shaft, and belongs to the technical field of linkage shafts. Background Art

[0002] The original meaning of linkage is the transmission relationship in which several related things move together when one of them moves, that is, joint action. The linkage shaft is to connect related movements together through the shaft to achieve transmission. The connection between the existing hydraulic pump and the motor is generally connected through a coupling, or installed through the motor output shaft and the support. These methods have high connection requirements and cumbersome processes.

[0003] Among them, the "hydraulic pump linkage shaft" disclosed in the application number "CN201820789997.7" "comprises a support seat, a flange is fixedly provided at the bottom end of the support seat, and the top of the support seat is rotatably connected to the surface of the linkage shaft through a bearing. A groove is provided at one end of the linkage shaft, and a plurality of evenly distributed racks are fixedly provided inside the groove. The plurality of racks are meshed and connected with the tooth grooves on the surface of the output shaft of the external motor. A concave-shaped connecting block is fixedly provided at the other end of the linkage shaft, and sealing gaskets are provided on both sides of the concave-shaped connecting block. Threaded holes are provided on both sides of the concave-shaped connecting block, and fixing bolts are threadedly connected in the threaded holes. The utility model connects the hydraulic pump to the motor through the linkage shaft, and connects to the rotating shaft of the hydraulic pump through the connecting block, which is convenient for disassembly and installation. A flange is installed at the bottom end of the support seat to effectively ensure the stability of the linkage shaft during operation. Gears are interspersed on the surface of the linkage shaft, which can be connected to other rotating shafts to increase the efficiency of motor use.

[0004] However, the above method still has the following defects: the rotating shaft of the hydraulic pump and the concave connecting block at the other end of the linkage shaft are fixed by two nuts. When installing the rotating shaft of the hydraulic pump, it is necessary to tighten the two nuts in sequence with the help of a screwdriver, which reduces the installation efficiency. Utility Model Content

[0005] The utility model aims to provide a hydraulic pump linkage shaft to solve the problem that when installing the rotating shaft of the hydraulic pump, two nuts need to be tightened in sequence with the help of a screwdriver, which reduces the installation efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic pump linkage shaft, comprising a base plate, baffles are provided on both sides of the top of the base plate, through holes are provided on the surfaces of the two baffles, the inner walls of the two through holes are rotatably connected to a shaft rod through a sealed bearing, a transmission groove is provided at one end of the shaft rod, a positioning block is provided at the other end of the shaft rod, a socket is provided on one side of the positioning block, sleeves are provided on the front and back sides of the positioning block, return springs are provided on the inner walls of the two sleeves, pressure blocks are provided at one end of the two return springs, and an anti-slip component is provided at the top of the base plate.

[0007] As a preferred technical solution of the utility model, the surfaces of the two pressing blocks are respectively slidably connected to the inner walls of the two sleeves, the surfaces of the two pressing blocks are provided with push rods, and one end of the two pressing blocks passes through the surface of the positioning block and is placed inside the socket.

[0008] As a preferred technical solution of the utility model, the surfaces of the two sleeves are provided with a first sliding groove and a second sliding groove, and the inner walls of the two first sliding grooves are respectively slidably connected to the surfaces of the two push rods.

[0009] As a preferred technical solution of the utility model, an inner tooth ring is provided on the inner wall of the transmission groove, and mounting holes are provided on the four corners of the bottom plate.

[0010] As a preferred technical solution of the utility model, the anti-slip assembly includes a transverse tube, an adjustment assembly and two anti-slip seats, the transverse tube is arranged between two baffles, the surface of the transverse tube is slidably connected with a moving ring, the surface of the moving ring is provided with two moving frames, one side of the two moving frames is provided with a baffle ring, a clamping spring is provided between the moving ring and one of the baffles, the clamping spring is sleeved on the outside of the transverse tube, and the two anti-slip seats are respectively slidably arranged on the inner walls of the two second slide grooves.

[0011] As a preferred technical solution of the utility model, one side of the two anti-detachment seats is respectively connected to the surface of the two pressure blocks, the surfaces of the two anti-detachment seats are provided with arc grooves, the inner walls of the two arc grooves are provided with first balls, second balls and third balls, the surfaces of the two first balls are slidably connected to the inner wall of the retaining ring, the surfaces of the two second balls are slidably connected to the surface of the retaining ring, and the surfaces of the two third balls are slidably connected to one end of the retaining ring.

[0012] As a preferred technical solution of the utility model, a rotation-inhibiting groove is provided on the surface of the transverse tube, a rotation-inhibiting block is slidably connected to the inner wall of the rotation-inhibiting groove, and the surface of the rotation-inhibiting block is connected to the inner wall of the moving ring.

[0013] As a preferred technical solution of the utility model, the adjustment component includes a connecting seat and a hanging bracket, the connecting seat is arranged at one end of the movable ring, a pull rope is provided on one side of the connecting seat, a hook is provided at one end of the pull rope, and the hanging bracket is arranged at the top of one of the baffles.

[0014] Compared with the related art, the hydraulic pump linkage shaft provided by the utility model has the following beneficial effects:

[0015] 1. Slide the shaft of the hydraulic pump into the jack, loosen the push rod, and the reset spring will extend and push the pressure block into the fixed hole on the shaft of the hydraulic pump to realize the transmission of the shaft and the positioning block. There is no need to manually tighten the two nuts in sequence with the help of a screwdriver, which improves the installation efficiency. The retaining ring is against the anti-drop seat and the pressure block through the arc groove, the first ball, the second ball and the third ball to ensure the fixing effect of the pressure block;

[0016] 2. Hang the hook on the surface of the bracket, release the hook, the compression spring will stretch and push the moving ring to move a certain distance in the opposite direction, so that the pull rope is straightened, and the retaining ring still remains out of the arc groove. Then adjust the position of the moving ring by adjusting the assembly, freeing up the hand used to push the retaining ring when installing the shaft of the hydraulic pump, which is more convenient;

[0017] 3. The anti-slip seat slides along the surface of the retaining ring through the first ball, the second ball and the third ball. The first ball, the second ball and the third ball change the sliding friction into rolling friction, thereby reducing the useless work of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

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

[0020] Figure 3 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the side cross-sectional structure of the positioning block of the utility model;

[0022] Figure 5 It is a schematic diagram of the top cross-sectional structure of the positioning block of the utility model;

[0023] Figure 6 For this utility model Figure 5 A is an enlarged structural diagram of FIG.

[0024] In the figure: 1. bottom plate; 2. baffle plate; 3. through hole; 4. shaft rod; 5. transmission groove; 6. positioning block; 7. anti-slip assembly; 701. cross tube; 702. moving ring; 703. moving frame; 704. baffle ring; 705. clamping spring; 706. anti-slip seat; 707. arc groove; 708. first ball; 709. second ball; 710. third ball; 711. anti-rotation groove; 712. anti-rotation block; 8. adjustment assembly; 801. connecting seat; 802. hanging bracket; 803. pull rope; 804. hook; 9. socket; 10. sleeve; 11. reset spring; 12. pressure block; 13. push rod; 14. inner gear ring; 15. first slide groove; 16. second slide groove. 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 The utility model provides a hydraulic pump linkage shaft, including a base plate 1, baffles 2 are fixedly provided on both sides of the top of the base plate 1, through holes 3 are provided on the surfaces of the two baffles 2, and the inner walls of the two through holes 3 are rotatably connected with shafts 4 through sealed bearings, a transmission groove 5 is provided at one end of the shaft 4, a positioning block 6 is fixedly provided at the other end of the shaft 4, a plug hole 9 is provided on one side of the positioning block 6, sleeves 10 are fixedly provided on the front and back sides of the positioning block 6, return springs 11 are fixedly provided on the inner walls of the two sleeves 10, and pressure blocks 12 are fixedly provided at one end of the two return springs 11, and an anti-slip component 7 is provided on the top of the base plate 1, the rotating shaft of the hydraulic pump is slid into the plug hole 9, and two fixing holes corresponding to the pressure blocks 12 are provided on the rotating shaft of the hydraulic pump, and the return spring 11 will stretch and push the pressure blocks 12 to insert into the fixing holes on the rotating shaft of the hydraulic pump, so as to realize the transmission of the rotating shaft and the positioning blocks 6.

[0027] The surfaces of the two pressing blocks 12 are respectively slidably connected to the inner walls of the two sleeves 10. Push rods 13 are fixedly arranged on the surfaces of the two pressing blocks 12. One end of the two pressing blocks 12 passes through the surface of the positioning block 6 and is placed inside the socket 9. When the push rod 13 is moved, the push rod 13 will drive the pressing blocks 12 to move, causing the pressing blocks 12 to move away from the positioning block 6, so that the pressing blocks 12 are separated from the socket 9, making it easier for the socket 9 to slide into the rotating shaft of the hydraulic pump. The pressing blocks 12 will compress the reset spring 11.

[0028] The surfaces of the two sleeves 10 are provided with a first slide groove 15 and a second slide groove 16. The inner walls of the two first slide grooves 15 are respectively slidably connected to the surfaces of the two push rods 13. The first slide groove 15 guides and limits the moving push rods 13, thereby preventing the pressure block 12 from rotating along the inner wall of the sleeve 10 and preventing the reset spring 11 from being twisted. The second slide groove 16 guides the movement of the anti-disengagement seat 706.

[0029] An inner gear ring 14 is fixedly provided on the inner wall of the transmission groove 5, and mounting holes are provided at the four corners of the bottom plate 1. The output shaft of the motor is slid into the transmission groove 5, and the inner gear ring 14 meshes with the output shaft of the motor to realize transmission.

[0030] The anti-slip assembly 7 includes a transverse tube 701, an adjustment assembly 8 and two anti-slip seats 706. The transverse tube 701 is fixedly arranged between the two baffles 2. A moving ring 702 is slidably connected to the surface of the transverse tube 701. Two moving frames 703 are fixedly arranged on the surface of the moving ring 702. A retaining ring 704 is fixedly arranged on one side of the two moving frames 703. A clamping spring 705 is fixedly arranged between the moving ring 702 and one of the baffles 2. The clamping spring 705 is sleeved on the outside of the transverse tube 701. The two anti-slip seats 706 are respectively slidably arranged on the inner walls of the two second slide grooves 16. The clamping spring 705 will stretch and push the moving ring 702 to move, and the moving ring 702 will push the retaining ring 704 to move through the moving frame 703, causing the retaining ring 704 to slide into the interior of the arc groove 707. The anti-slip seat 706 will rotate along the retaining ring 704 when rotating with the shaft 4 as the center. The retaining ring 704 presses against the anti-slip seat 706 and the pressure block 12 through the arc groove 707, the first ball 708, the second ball 709 and the third ball 710 to prevent the pressure block 12 from performing centrifugal motion with the rotation of the shaft 4, thereby ensuring the fixing effect of the pressure block 12 on the hydraulic pump shaft.

[0031] One side of the two anti-slip seats 706 is fixedly connected to the surfaces of the two pressing blocks 12 respectively, and the surfaces of the two anti-slip seats 706 are provided with arc grooves 707, and the inner walls of the two arc grooves 707 are provided with first balls 708, second balls 709 and third balls 710, and the surfaces of the two first balls 708 are slidably connected to the inner wall of the retaining ring 704, the surfaces of the two second balls 709 are slidably connected to the surface of the retaining ring 704, and the surfaces of the two third balls 710 are slidably connected to the inner wall of the retaining ring 704. One end of the ring 704 is slidably connected. When the shaft 4 rotates, the shaft 4 drives the anti-detachment seat 706 to rotate through the positioning block 6, the sleeve 10 and the pressure block 12. The anti-detachment seat 706 rotates with the shaft 4 as the center, and the rotating anti-detachment seat 706 slides along the surface of the retaining ring 704 through the first ball 708, the second ball 709 and the third ball 710. The first ball 708, the second ball 709 and the third ball 710 change the sliding friction into rolling friction, thereby reducing the useless work of the motor.

[0032] The surface of the transverse tube 701 is provided with anti-rotation grooves 711, and there are twelve anti-rotation grooves 711, which are evenly distributed in a ring shape. The inner walls of the anti-rotation grooves 711 are slidably connected with anti-rotation blocks 712, and there are twelve anti-rotation blocks 712. The surfaces of the anti-rotation blocks 712 are fixedly connected to the inner wall of the moving ring 702. The anti-rotation grooves 711 guide the movement of the anti-rotation blocks 712 to prevent the moving ring 702 from rotating around the transverse tube 701 when moving, thereby preventing the compression spring 705 from being twisted.

[0033] The adjustment assembly 8 includes a connecting seat 801 and a hanging bracket 802. The connecting seat 801 is fixedly arranged at one end of the moving ring 702. A pull rope 803 is fixedly arranged on one side of the connecting seat 801. A hook 804 is fixedly arranged at one end of the pull rope 803. The hanging bracket 802 is fixedly arranged at the top of one of the baffles 2. Before installing the rotating shaft of the hydraulic pump, the moving ring 702 is moved away from the positioning block 6. The moving ring 702 compresses the compression spring 705. The moving ring 702 drives the baffle ring 704 through the moving bracket 703. The retaining ring 704 is forced to disengage from the arc groove 707, the limit on the pressure block 12 is released, the hook 804 is hung on the surface of the bracket 802, and the hook 804 is released. The compression spring 705 will stretch and push the movable ring 702 to move in the opposite direction for a certain distance, so that the pull rope 803 is straightened. At this time, the retaining ring 704 still remains in a state of being disengaged from the arc groove 707. Therefore, the position of the movable ring 702 is adjusted by adjusting the component 8, and the hand used to push the retaining ring 704 is freed when installing the shaft of the hydraulic pump, which is more convenient.

[0034] When in use, first move the moving ring 702 in the direction away from the positioning block 6, the moving ring 702 will compress the clamping spring 705, and the moving ring 702 will drive the retaining ring 704 through the moving frame 703, so that the retaining ring 704 will be separated from the arc groove 707, and the limit of the pressure block 12 will be released, and the hook 804 will be hung on the surface of the hanger 802, and then the pressure block 12 will be pushed by the push rod 13 to push the pressure block 12 away from the positioning block 6, and the shaft of the hydraulic pump will slide into the socket 9. The shaft of the hydraulic pump is provided with a fixing hole corresponding to the pressure block 12, and the push rod 13 is loosened. The reset spring 11 will extend and push the pressure block 12 to insert into the fixing hole on the shaft of the hydraulic pump, so as to realize the transmission of the shaft and the positioning block 6, and there is no need to manually tighten the two nuts in sequence with the help of a screwdriver, thereby improving the installation efficiency;

[0035] Furthermore, after the pressure block 12 fixes the shaft of the hydraulic pump, the hook 804 hanging on the surface of the bracket 802 is removed, the clamping spring 705 will stretch and push the movable ring 702 to move, and the movable ring 702 will push the retaining ring 704 to move through the movable bracket 703, causing the retaining ring 704 to slide into the interior of the arc groove 707, so that the first ball 708, the second ball 709 and the third ball 710 are in contact with the retaining ring 704. At this time, the retaining ring 704 is against the anti-slip seat 706 and the pressure block 12 through the arc groove 707, the first ball 708, the second ball 709 and the third ball 710, so that the pressure block 12 makes a circular motion with the shaft 4 as the center as the rotation of the shaft 4, preventing the pressure block 12 from making a centrifugal motion as the shaft 4 rotates, thereby ensuring the fixing effect of the pressure block 12.

[0036] Although 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 hydraulic pump linkage shaft, comprising a base plate (1), characterized in that: Baffles (2) are provided on both sides of the top of the base plate (1), through holes (3) are provided on the surfaces of the two baffles (2), the inner walls of the two through holes (3) are rotatably connected to shafts (4) via sealed bearings, a transmission groove (5) is provided at one end of the shaft (4), a positioning block (6) is provided at the other end of the shaft (4), a plug hole (9) is provided on one side of the positioning block (6), sleeves (10) are provided on the front and back sides of the positioning block (6), return springs (11) are provided on the inner walls of the two sleeves (10), and pressure blocks (12) are provided at one end of the two return springs (11), and an anti-slip component (7) is provided at the top of the base plate (1).

2. A hydraulic pump linkage shaft according to claim 1, characterized in that: The surfaces of the two pressing blocks (12) are respectively slidably connected to the inner walls of the two sleeves (10), the surfaces of the two pressing blocks (12) are each provided with a push rod (13), and one end of the two pressing blocks (12) passes through the surface of the positioning block (6) and is placed inside the insertion hole (9).

3. A hydraulic pump linkage shaft according to claim 2, characterized in that: The surfaces of the two sleeves (10) are each provided with a first sliding groove (15) and a second sliding groove (16), and the inner walls of the two first sliding grooves (15) are respectively slidably connected to the surfaces of the two push rods (13).

4. The hydraulic pump linkage shaft according to claim 1, characterized in that: An inner gear ring (14) is provided on the inner wall of the transmission groove (5), and mounting holes are provided on the four corners of the bottom plate (1).

5. The hydraulic pump linkage shaft according to claim 3, characterized in that: The anti-slip assembly (7) comprises a transverse tube (701), an adjustment assembly (8) and two anti-slip seats (706); the transverse tube (701) is arranged between two baffles (2); a moving ring (702) is slidably connected to the surface of the transverse tube (701); two moving frames (703) are arranged on the surface of the moving ring (702); a baffle ring (704) is arranged on one side of the two moving frames (703); a clamping spring (705) is arranged between the moving ring (702) and one of the baffles (2); the clamping spring (705) is sleeved on the outside of the transverse tube (701); and the two anti-slip seats (706) are respectively slidably arranged on the inner walls of the two second slide grooves (16).

6. The hydraulic pump linkage shaft according to claim 5, characterized in that: One side of the two anti-slip seats (706) is respectively connected to the surface of the two pressing blocks (12), the surfaces of the two anti-slip seats (706) are provided with arc grooves (707), the inner walls of the two arc grooves (707) are provided with a first ball (708), a second ball (709) and a third ball (710), the surfaces of the two first balls (708) are slidably connected to the inner wall of the retaining ring (704), the surfaces of the two second balls (709) are slidably connected to the surface of the retaining ring (704), and the surfaces of the two third balls (710) are slidably connected to one end of the retaining ring (704).

7. The hydraulic pump linkage shaft according to claim 5, characterized in that: The surface of the transverse tube (701) is provided with a rotation-depressing groove (711), the inner wall of the rotation-depressing groove (711) is slidably connected with a rotation-depressing block (712), and the surface of the rotation-depressing block (712) is connected to the inner wall of the moving ring (702).

8. The hydraulic pump linkage shaft according to claim 5, characterized in that: The adjustment assembly (8) comprises a connecting seat (801) and a hanging bracket (802); the connecting seat (801) is arranged at one end of the moving ring (702); a pull rope (803) is arranged on one side of the connecting seat (801); a hook (804) is arranged at one end of the pull rope (803); and the hanging bracket (802) is arranged at the top end of one of the baffles (2).

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