A friction plate spline separation tool

Abstract

The present invention provides a friction plate spline separation tool, comprising a main frame, pulling legs on left and right sides, and a connecting plate for movably connecting the two. A lifting screw is provided through the upper and lower middle parts of the main frame, and a hexagonal knob is fixedly installed on the top of the lifting screw. A movable block is provided in the main frame for lifting. The movable block is threadably connected to the lifting screw through an opened internal thread. An extrusion spring is fixedly installed between the movable block and the upper side wall of the main frame. A spline impact sleeve is rotatably provided at the bottom of the lifting screw, and an oil outlet hole connected to the oil inlet groove is arranged in an array at the bottom of the spline impact sleeve. The lifting screw of the present invention can not only serve as a supporting mechanism for drawing the spline in the prior art, but also be used as a vibration impact rod, and lubricating oil is filled into the spline impact sleeve at the bottom while impacting and vibrating. Through the combined use of multiple disassembly methods, different shaft removal operations are performed for different workpieces, thereby ensuring the normal progress of the disassembly work.

Description

Technical Field

[0001] The invention relates to the technical field of spline separation pullers, in particular to a friction plate spline separation tool. Background Art

[0002] A quick combination puller disclosed in the prior art with the publication number "CN211491320U" is composed of a three-jaw main frame, a two-jaw main frame, a pulling leg, a connecting plate, a lead screw, a top sleeve, a wire retaining ring, a hexagonal head bolt, an all-metal hexagonal locking nut, etc. The two ends of the main frame are connected to the pulling legs by hexagonal head bolts, all-metal hexagonal locking nuts and connecting plates respectively. The main frame can be switched between three jaws and two jaws by replacing the main frame. The main frame is provided with an internal threaded through hole, and the lead screw passes through the internal threaded through hole of the main frame. There is a hexagonal square at the upper end of the lead screw that can be used to apply force with a wrench. The bottom of the lead screw is connected to the top sleeve through a wire retaining ring. The three-jaw and two-jaw main frames of the device realize the quick combination function, and share the pulling legs, connecting plates, lead screws and other components to save resources and reduce waste. It has a reasonable design, a simple structure, is easy to manufacture, and is easy to use and operate, saving time and effort, and greatly improving the operator's work efficiency.

[0003] However, the above-mentioned quick combination puller still has obvious defects during use: the pullers of the existing technology and the above-mentioned device all pull out the splines or bearings by squeezing the screw, but this extrusion-type pulling out method is relatively simple. For large sleeves or bearings and spline components with poor lubrication effect due to age, the pulling out effect is not good. If the abutment-type pulling is forced, it may cause damage to the splines or bearings, and thus cause the workpiece to be scrapped. Summary of the Invention

[0004] The object of the present invention is to provide a friction plate spline separation tool to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket. The lower sprocket. The lower sprocket. The lower sprocket. The gears are meshed with tooth on upper sprocket.

[0007] A pair of oil pumping devices are also provided in the main frame. The rotation of the vibrating turntable also drives the oil pumping device to work and pump the lubricating oil inside the lubricating oil tank into the matching hole opened on the side of the sealing sleeve through the oil pumping channel. The sealing sleeve and the lifting screw are both provided with an oil inlet groove extending along their length direction to the bottom. The bottom of the lifting screw is rotatably provided with a spline impact sleeve, and the bottom of the spline impact sleeve is provided with an annular array of oil outlet holes connected to the oil inlet groove.

[0008] Preferably, slide bar grooves are provided on both sides of the movable block, and lifting slide bars are movably inserted into the slide bar grooves on both sides. The lifting slide bars on both sides are fixedly connected to the upper and lower inner walls of the main frame, and the extrusion spring is movably sleeved on the lifting slide bar.

[0009] Preferably, the oil pumping device includes a pumping cylinder, a pumping piston is telescopically arranged in the pumping cylinder, the pumping piston is fixedly connected to a telescopic connecting rod, a pumping block is fixedly installed on the end of the telescopic connecting rod away from the pumping piston, the pumping block is movably cooperated with the pushing block, a one-way air inlet valve is provided on the end of the pumping cylinder away from the pumping piston, a one-way air outlet valve connected to the interior of the lubricating oil tank is provided on the side of the pumping cylinder, a fixing seat is also fixedly installed on the main frame, the telescopic connecting rod is movably inserted in a through hole opened in the fixing seat, and a return spring is installed on the telescopic connecting rod between the fixing seat and the pumping block.

[0010] Preferably, the main frame is further provided with a lubricating oil adding hole connected to the lubricating oil tank, and a sealing plug is installed on the lubricating oil adding hole.

[0011] Preferably, the pull legs on both sides are further provided with telescopic guide bars, and the telescopic guide bars are fixed by means of threaded knobs provided on the sides of the pull legs.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The lifting screw of the present invention can not only serve as the abutment mechanism for drawing splines in the prior art, but also can complete the removal of the sleeve shaft by directly abutting for relatively simple splines. For workpieces that are ineffective in drawing, the lifting screw can also be used as a vibrating impact rod, reducing the difficulty of disassembly through continuous impact vibration, thereby improving the efficiency of disassembly of difficult workpieces.

[0014] 2. The lifting screw of the present invention can also fill lubricating oil into the spline impact sleeve at the bottom during impact vibration, and the lubricating oil can penetrate into the gap of the spline fitting through the spline impact sleeve. Combined with the impact vibration, it can effectively promote the penetration of the lubricating oil, thereby further reducing the friction between the spline fitting workpieces, and ultimately reducing the difficulty of disassembly, further ensuring the normal progress of the disassembly work.

[0015] The lifting screw of the present invention can not only serve as a supporting mechanism for drawing splines in the prior art, but also be used as a vibration impact rod, and fill lubricating oil into the spline impact sleeve at the bottom while impacting and vibrating. By combining the use of multiple disassembly methods, different shaft removal operations can be performed for different workpieces, ensuring the normal progress of the disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic cross-sectional view of the internal structure of the main frame of the present invention;

[0018] Figure 3 This is a schematic diagram of the movable block of the present invention in a lifted state;

[0019] Figure 4 This is a schematic diagram of the prying block and the pushing block in the present invention in cooperation;

[0020] Figure 5 This is a schematic diagram of the cooperation between the pump block and the push block of the present invention;

[0021] Figure 6 This is a schematic diagram of the driving gear connection structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the oil inlet tank structure of the present invention.

[0023] In the figure: 1 main frame, 2 pulling leg, 3 connecting plate, 4 lifting screw, 5 hexagonal knob, 6 movable block, 7 extrusion spring, 8 prying block, 9 pushing block, 10 vibration turntable, 11 driven gear, 12 transition gear, 13 driving gear, 14 lubricating oil tank, 15 pump oil channel, 16 sealing sleeve, 17 matching hole, 18 oil inlet groove, 19 spline impact sleeve, 20 oil outlet hole, 21 slide rod groove, 22 lifting slide rod, 23 pump air cylinder, 24 pump air piston, 25 telescopic connecting rod, 26 pump air block, 27 one-way air inlet valve, 28 one-way air outlet valve, 29 fixing seat, 30 return spring, 31 sealing plug, 32 telescopic guide strip, 33 threaded knob. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example:

[0026] See also Figure 1-7 , the present invention provides a technical solution:

[0027] Example 1:

[0028] A friction plate spline separation tool comprises a main frame 1, pulling legs 2 on the left and right sides and a connecting plate 3 for movably connecting the two. A lifting screw 4 is provided through the upper and lower middle parts of the main frame 1, and a hexagonal knob 5 is fixedly installed on the top of the lifting screw 4. A movable block 6 is provided in the main frame 1 for lifting. The movable block 6 is threadedly connected to the lifting screw 4 through an internal thread. An extrusion spring 7 is fixedly installed between the movable block 6 and the upper side wall of the main frame 1. Prying blocks 8 are also fixedly installed on both sides of the movable block 6. The prying blocks 8 on both sides are movably matched with the pushing blocks 9. The pushing blocks 9 on both sides are respectively fixedly mounted on the vibration turntables 10 arranged for rotation on both sides. A driven gear 11 is also fixedly mounted on the wheel axle of the vibration turntable 10. The driven gears 11 on both sides are respectively meshed with the transition gears 12 movably arranged on both sides. The transition gears 12 on the left and right sides are meshed with the same driving gear 13. A hexagonal knob 5 is fixedly mounted on the wheel axle of the driving gear 13, and the hexagonal knob 5 extends to the outside through the through hole opened on the side of the main frame 1;

[0029] A pair of oil pumping devices are also provided in the main frame 1. The rotation of the vibrating turntable 10 also drives the oil pumping device to work and pump the lubricating oil inside the lubricating oil tank 14 into the matching hole 17 opened on the side of the sealing sleeve 16 through the oil pumping channel 15. The sealing sleeve 16 and the lifting screw 4 are both provided with an oil inlet groove 18 extending along their length to the bottom. A spline impact sleeve 19 is rotatably provided at the bottom of the lifting screw 4, and an annular array of oil outlet holes 20 connected to the oil inlet groove 18 are provided at the bottom of the spline impact sleeve 19.

[0030] In this embodiment, the spline outer ring is fixed by pulling the leg 2, and the lifting screw 4 is rotated by cooperating with the hexagonal knob 5. The lifting screw 4 rotates to make it telescopic on the main frame 1, and the spline tooling is separated by abutting the lifting screw 4 against the spline inner ring. The above structure is a common structure and pulling method of the puller in the prior art, and will not be described in detail here. When the bottom of the lifting screw 4 abuts against the spline inner ring and cannot be disassembled, as the lifting screw 4 continues to rotate but cannot be advanced forward, during this process, the movable block 6 rotates the lifting screw 4. The lifting screw 4 is rotated downward to overcome the work of the squeezing spring 7 and move upward. In this process, the downward force of the lifting screw 4 gradually increases due to the gradual squeezing of the squeezing spring 7. If the spline is disassembled in this process, the movable block 6 is reset under the action of the squeezing spring 7. If the binding force between the splines is too large to be disassembled by abutting, the lifting screw 4 is rotated to make the movable block 6 move upward. When the movable block 6 moves upward, the prying block 8 is able to cooperate with the pushing block 9. At this time, the rotating mechanism is removed and the rotating mechanism is matched with the hexagonal knob 5 on the side wall of the main frame 1. By rotating the hexagonal knob 5 The driving gear 13 rotates, and the driving gear 13 rotates to drive the transition gear 12 to rotate. The transition gear 12 rotates to drive the driven gear 11 to rotate, and the vibration turntable 10 rotates through the rotation of the driven gear 11. The speed ratio is increased by the multi-gear meshing method, so that the hexagonal knob 5 rotates one circle and the vibration turntable 10 can rotate multiple circles quickly. The rotation of the vibration turntable 10 drives the prying block 8 to rotate. The prying block 8 continuously cooperates and disengages with the pushing block 9 during the rotation process, so that the movable block 6 is lifted upward and impacted downward under the action of the extrusion spring 7. The movable block The impact of 6 drives the lifting screw 4 to rise and fall quickly, thereby completing the high impact on the spline sleeve, and promoting the separation of the tightly combined spline parts through impact. This kind of vibration impact method can effectively promote the separation of the spline workpiece, and for the workpiece that is more difficult to separate, the lubricating oil is released to the spline joint gap simultaneously during the impact process of the lifting screw 4. After the lubricating oil is released, it can be left to stand for a period of time before the impact operation is performed. The combination of impact and lubrication can greatly improve the effectiveness of disassembly of difficult splines. By combining the above-mentioned multiple disassembly methods into one, the smooth disassembly of the spline is guaranteed.

[0031] Example 2:

[0032] In this embodiment, slide bar grooves 21 are further provided on both sides of the movable block 6, and lifting slide bars 22 are movably inserted into the slide bar grooves 21 on both sides. The lifting slide bars 22 on both sides are fixedly connected to the upper and lower inner walls of the main frame 1, and the extrusion spring 7 is movably sleeved on the lifting slide bar 22. The setting of the slide bar 22 and the slide bar groove 21 improves the stability of the lifting and lowering of the movable block 6, thereby ensuring the normal progress of the impact process.

[0033] Example 3:

[0034] In this embodiment, the oil pumping device includes a pumping cylinder 23, in which a pumping piston 24 is telescopically arranged. The pumping piston 24 is fixedly connected to a telescopic connecting rod 25, and a pumping block 26 is fixedly installed at one end of the telescopic connecting rod 25 away from the pumping piston 24. The pumping block 26 is movably cooperated with the pushing block 9. A one-way air inlet valve 27 is provided at one end of the pumping cylinder 23 away from the pumping piston 24, and a one-way air outlet valve 28 connected to the interior of the lubricating oil tank 14 is provided on the side of the pumping cylinder 23. A fixing seat 29 is also fixedly installed on the main frame 1, and the telescopic connecting rod 25 is movably inserted into the through hole opened in the fixing seat 29. A fixing seat 29 is provided on the telescopic connecting rod 25 between the fixing seat 29 and the pumping block 26. A return spring 30 is installed. During the high-speed rotation of the vibrating turntable 10, the cooperation between the pushing block 9 and the pumping block 26 causes the telescopic connecting rod 25 to reciprocate and retract. The reciprocating extension and retraction of the telescopic connecting rod 25 drives the pumping piston 24 to retract and retract. The extension and retraction of the pumping piston 24 allows the interior of the pumping cylinder 23 to undergo an inflation and deflation process. During the inflation and deflation process, gas enters the pumping cylinder 23 from the outside, and enters the lubricating oil tank 14 through the inside of the pumping cylinder 23. Since the interior of the lubricating oil tank 14 is a sealed structure, the internal air pressure increases, allowing the lubricating oil stored inside to enter the oil inlet groove 18 through the pumping oil channel 15, and finally flows into the gap of the spline joint through the spline impact sleeve 19.

[0035] Example 4:

[0036] In this embodiment, a lubricating oil adding hole connected to the lubricating oil tank 14 is also provided on the main frame 1. A sealing plug 31 is installed on the lubricating oil adding hole. The setting of the sealing plug 31 ensures the air tightness inside the lubricating oil tank 14, and lubricating oil can be added to the inside by opening it.

[0037] Embodiment 5:

[0038] In this embodiment, telescopic guide bars 32 are further provided on the pull legs 2 on both sides. The telescopic guide bars 32 are fixed by means of threaded knobs 33 provided on the sides of the pull legs 2. The upper ends of the telescopic guide bars 32 are inserted into the telescopic grooves provided in the upper pull legs 2. The lower ends of the telescopic guide bars 32 are fixedly connected to the bottom pull legs 2. The telescopic guide bars 32 can be extended and retracted by rotating the threaded knobs 33, and the telescopic guide bars 32 can be fixed by tightening the threaded knobs 33. The purpose of this setting is to adjust the stretching distance of the pull legs 2.

[0039] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A friction plate spline separation tool, comprising a main frame (1), left and right pull legs (2), and a connecting plate (3) for movably connecting the two, wherein a lifting screw (4) is provided through the middle of the main frame (1) and the top of the lifting screw (4) is fixedly mounted with a hexagonal knob (5), characterized in that: A movable block (6) is provided in a lifting manner in the main frame (1), and the movable block (6) is threadedly connected to the lifting screw (4) through an internal thread. An extrusion spring (7) is fixedly installed between the movable block (6) and the upper side wall of the main frame (1). Prying blocks (8) are also fixedly installed on both sides of the movable block (6), and the prying blocks (8) on both sides are movably matched with the pushing blocks (9). The pushing blocks (9) on both sides are respectively fixedly installed on the vibration turntables (10) rotatably provided on both sides. A driven gear (11) is also fixedly installed on the wheel shaft of the vibration turntable (10), and the driven gears (11) on both sides are respectively engaged with the transition gears (12) movably provided on both sides. The transition gears (12) on the left and right sides are both engaged with the same driving gear (13). A hexagonal knob (5) is fixedly installed on the wheel shaft of the driving gear (13), and the hexagonal knob (5) extends to the outside through a through hole provided on the side of the main frame (1); A pair of oil pumping devices are also provided in the main frame (1). The rotation of the vibrating turntable (10) also drives the oil pumping device to work and pump the lubricating oil in the lubricating oil tank (14) into the matching hole (17) provided on the side of the sealing sleeve (16) through the oil pumping passage (15). The sealing sleeve (16) and the lifting screw (4) are both provided with an oil inlet groove (18) extending along the length direction to the bottom. The bottom of the lifting screw (4) is rotatably provided with a spline impact sleeve (19). The bottom of the spline impact sleeve (19) is provided with an annular array of oil outlet holes (20) connected to the oil inlet groove (18). The oil pumping device includes a pumping cylinder (23), a pumping piston (24) is telescopically arranged in the pumping cylinder (23), the pumping piston (24) is fixedly connected to a telescopic connecting rod (25), a pumping block (26) is fixedly installed at one end of the telescopic connecting rod (25) away from the pumping piston (24), the pumping block (26) is movably matched with the push block (9), a one-way air inlet valve (27) is provided at one end of the pumping cylinder (23) away from the pumping piston (24), a one-way air outlet valve (28) connected to the inside of the lubricating oil tank (14) is provided on the side of the pumping cylinder (23), a fixing seat (29) is also fixedly installed on the main frame (1), the telescopic connecting rod (25) is movably inserted into a through hole opened in the fixing seat (29), and a return spring (30) is installed on the telescopic connecting rod (25) between the fixing seat (29) and the pumping block (26); The main frame (1) is also provided with a lubricating oil adding hole connected to the lubricating oil tank (14).

2. The friction plate spline separation tool according to claim 1, characterized in that: Slide rod grooves (21) are further provided on both sides of the movable block (6), and lifting slide rods (22) are movably inserted into the slide rod grooves (21) on both sides. The lifting slide rods (22) on both sides are fixedly connected to the upper and lower inner walls of the main frame (1), and the extrusion spring (7) is movably sleeved on the lifting slide rod (22).

3. A friction plate spline separation tool according to claim 1 or 2, characterized in that: Telescopic guide bars (32) are also provided on the pull legs (2) on both sides, and the telescopic guide bars (32) are fixed against threaded knobs (33) provided on the sides of the pull legs (2).

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