Split type gearbox machining and assembling tool and assembling method thereof

Abstract

The invention belongs to the technical field of gearbox assembling, and particularly relates to a split type gearbox machining and assembling tool and an assembling method thereof.The split type gearbox machining and assembling tool comprises an oil injection device, the oil injection device comprises a workbench, and oil injection work of an oil injection nozzle is stopped through abutting of a first contact and a second contact; the device can automatically adapt to and control the grease injection amount through the volume of exhausted air, and can relatively accurately inject a proper amount of lubricating grease in a gear box with a complicated internal structure or a simple internal structure, so that the device has better universality and flexibility, and is suitable for popularization and application. Through movement of the moving plate, lubricating grease remaining in the oil injection column can be blocked in time, so that the situation that too much or too little lubricating grease is injected into the box body can be further reduced, and then the accuracy of lubricating grease injection work is improved; and secondly, an unstable gas-liquid interface can be prevented from being formed on the surface of the lubricating grease through the movement of the second air outlet, so that the lubricating grease is more uniformly distributed on each friction part when the gearbox runs, and a good lubricating effect is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of gearbox assembly, and specifically relates to a processing and assembly tooling for a split gearbox and its assembly method. Background Art

[0002] A processing and assembly tooling for a split gearbox is a special tool or equipment used to assist in the processing and assembly of a split gearbox. It usually consists of multiple components and can accurately position, fix, and adjust each split part of the gearbox to ensure the relative position accuracy of each part during the processing, and can accurately combine each split part together during the assembly, and inject grease into the assembled gearbox to ensure the overall performance and quality of the gearbox.

[0003] In the prior art, each component of the split gearbox is placed on the corresponding positioning device of the tooling, and is accurately positioned and fixed through components such as the fixture of the tooling to ensure the accurate relative position of each component. Then, the conveying mechanism of the tooling sequentially conveys components such as gears to the assembly position. When the assembly process is completed, the oil injection device starts to work. The oil pump pumps out the grease from the oil storage device, and after filtration and metering, an appropriate amount of grease is injected into the gearbox through the oil injection nozzle.

[0004] The above solution still has some problems in actual application. Although the existing device can complete the injection of grease into the gearbox, in addition to gears and bearings inside the gearbox, there are many other components, such as drive shafts, seals, sensors, etc. The design of the oil cavity needs to avoid these components to prevent interference. Therefore, in order to adapt to these complex internal layouts, the shape of the oil cavity often becomes irregular, and the irregular shape of the oil cavity brings difficulties to oil injection. During the oil injection process, it is difficult to accurately predict and control the rising situation of the liquid level of the oil in the irregular oil cavity. For example, local protrusions or depressions in the oil cavity will cause the oil to accumulate or form dead corners in these parts, resulting in the inability to accurately judge the oil level during oil injection, thereby affecting the oil injection accuracy.

[0005] Therefore, the present invention provides a processing and assembly tooling for a split gearbox and its assembly method. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A processing and assembly tooling for a split gearbox according to the present invention includes an oil injection device. The oil injection device includes a workbench, an oil injection nozzle is slidably arranged on the top of the workbench, a placement frame is slidably arranged on the top of the workbench, and a detection and isolation mechanism is arranged below the oil injection device; The detection and isolation mechanism includes an oil filling column fixedly arranged at the bottom of the oil filling nozzle, an L-shaped cylinder column fixedly arranged on the outer ring surface of the oil filling column, the L-shaped cylinder column consists of a transverse column and a vertical column, a second contact point is fixedly arranged in the transverse column of the L-shaped cylinder column, and a first contact point is slidably arranged in the transverse column of the L-shaped cylinder column. The first contact point and the second contact point are counteracted to avoid excessive or insufficient grease injection into the box.

[0008] Preferably, the inner cavity of the L-shaped cylinder is fixedly connected to a reciprocating spring, one end of the reciprocating spring is fixedly connected to a piston plate, the other side of the piston plate is fixedly connected to a first contact, the end of the L-shaped cylinder transverse rod close to the oil filling column is fixedly connected to a blocking plate, the side of the blocking plate away from the oil filling column is fixedly connected to a second contact, and a first air outlet is opened through the outer ring surface of the L-shaped cylinder transverse rod.

[0009] Preferably, the second contact point and the first contact point are on the same horizontal plane, and the opening of the first air outlet can facilitate the movement of the piston plate when it is squeezed by gas.

[0010] Preferably, a sealing plate is fixedly connected to the bottom of the oil filling column, an inner cavity is opened inside the sealing plate, a driving motor is fixedly connected to the side wall of the inner cavity of the sealing plate, a rotating screw is fixedly connected to the output shaft of the driving motor, a movable plate is threadedly connected to the outer ring surface of the rotating screw, a guide rod is fixedly connected to the side wall of the inner cavity of the sealing plate, and the movable plate is slidably connected to the side of the guide rod.

[0011] Preferably, the bottom of the L-shaped column is fixedly connected to the top of the sealing plate, and the sealing plate is penetrated by a hole that matches the diameter of the oil injection column and the vertical column of the L-shaped column, and the movable plate is penetrated by a hole that matches the diameter of the oil injection column and the vertical column of the L-shaped column, and during the oil injection process, the two holes on the movable plate will be on the same vertical plane with the two holes on the sealing plate.

[0012] Preferably, a second air outlet is provided inside the movable plate, an exhaust pipe is fixedly connected inside the movable plate, the exhaust pipe consists of a longitudinal column and a transverse column, exhaust holes are provided on the outer annular surface of the transverse column of the exhaust pipe, a blocking block is fixedly connected to one end of the transverse column of the exhaust pipe, and the blocking block is slidably connected to the inside of the sealing plate.

[0013] Preferably, the second air outlet is adapted to the diameter of the vertical column of the L-shaped cylinder, the longitudinal column of the exhaust pipe is connected to the second air outlet, and the exhaust hole is used to discharge the gas temporarily stored inside the L-shaped cylinder into the sealing plate.

[0014] Preferably, a swinging vibration mechanism for vibration is arranged on the side of the detection isolation mechanism. The swinging vibration mechanism includes an ejecting rod fixedly connected to the side of a blocking block. One end of the ejecting rod away from the blocking block abuts against a swinging rod. A fixed shaft is arranged inside the swinging rod, and the swinging rod is rotatably connected to the outer ring surface of the fixed shaft. Fixing plates are fixedly connected to both ends of the fixed shaft, and a vibration block is fixedly connected to the side of the placement frame.

[0015] Preferably, the swinging rod is an elastic rod. The swinging rod and the vibration block are on the same vertical plane. The swinging rod does not contact the vibration block during the normal oil injection process of the equipment. When the oil injection is completed, the blocking block will extend out of the sealing plate, and at this time, the bottom of the swinging rod will contact the vibration block and generate vibration during the movement process.

[0016] A processing and assembly method for a split gearbox is specifically as follows: Box body processing: First, according to the design requirements of the gearbox, process the split gearbox box body, and use a numerically controlled machine tool to ensure the dimensional accuracy and surface roughness of the gear mounting holes. Gear and bearing assembly: Preheat the bearings and gears, and quickly press the bearings into the box body holes after the preheating is completed. Secondly, hoist the gear shaft to the box body through a hoisting device and adjust the meshing clearance of the gears. Oil injection operation: After the gear assembly is completed, the oil injection nozzle will drive the sealing plate to the top of the gearbox and press the top of the gearbox tightly through the sealing plate. At this time, start the oil injection nozzle to inject oil into the gearbox. When the lubricating grease flows into the gearbox along the oil injection column, the air in the gearbox will be squeezed out of the box body. Since the top of the gearbox is covered by the sealing plate, the air will flow into the L-shaped cylinder column at this time and push the piston piece to move along the guide of the horizontal column of the L-shaped cylinder column, and the first contact point will move synchronously while moving. When the first contact point abuts against the second contact point, the oil injection device will stop injecting oil into the gearbox to avoid over-injection or under-injection. General assembly and debugging: After the oil injection work is completed, align the upper and lower box bodies and tighten the bolts in a symmetrical order, and check the gap of the box body joint surface to ensure no oil leakage risk. Secondly, connect the motor and conduct a stepped load test.

[0017] The beneficial effects of the present invention are as follows: 1. In the present invention, the gas extruded by the grease inside the gearbox pushes the first contact and the second contact to abut against each other, so as to suspend the oil injection work of the oil injection nozzle. It can automatically adapt to and control the grease injection amount by the volume of the discharged air. Whether the internal structure of the gearbox is complex or simple, an appropriate amount of grease can be injected relatively accurately, so that the device has good versatility and flexibility. Secondly, through the movement of the moving plate, the grease remaining inside the oil injection column can be blocked in time, so as to further reduce the situation of too much or too little grease injected into the box body, and then improve the accuracy of the grease injection work.

[0018] 2. When the moving plate moves linearly along the guiding of the guiding rod in the present invention, the second air outlet will also move linearly synchronously, and synchronously drive the exhaust pipe, the exhaust hole and the blocking block to move linearly synchronously. When the second air outlet and the central axis of the L-shaped cylinder column are on the same vertical plane, the exhaust hole opened on the transverse column of the exhaust pipe will extend out of the sealing plate. At this time, the reciprocating spring will perform the reset work, and at the same time of resetting, it will drive the piston piece to move synchronously. At this time, the air temporarily stored inside the L-shaped cylinder column in the gearbox will flow into the second air outlet. Since the second air outlet is communicated with the longitudinal column of the exhaust pipe, the air flowing into the second air outlet will flow out of the inside of the detection and isolation mechanism through the exhaust hole opened on the exhaust pipe, so as to avoid the air inside the L-shaped cylinder column spraying onto the surface of the grease when the sealing plate leaves the top of the gearbox after the oil injection work is completed, and prevent the formation of an unstable gas-liquid interface on the surface of the grease, so that the grease is more evenly distributed at each friction part when the gearbox is running, ensuring good lubrication effect.

[0019] 3. In the present invention, the vibration block generates slight vibration on the placing frame, and the vibration is transmitted to the gearbox placed on the upper part of the placing frame through the placing frame, so as to enable the grease to fill the tiny gaps and depressions, reduce the lubrication dead angles, thereby improving the lubrication effect and reducing the component wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is the overall structural schematic diagram of a preferred embodiment shown in the present invention; Figure 2 is the three-dimensional structural schematic diagram of the detection and isolation mechanism shown in the present invention; Figure 3 is the internal structural schematic diagram of the oil injection column and the L-shaped cylinder column shown in the present invention; Figure 4 is the internal structural schematic diagram of the sealing plate shown in the present invention; Figure 5 is the internal structural schematic diagram of the moving plate shown in the present invention; Figure 6 is a schematic diagram of the exploded structure of the components of the detection and isolation mechanism shown in the present invention; Figure 7 is a schematic diagram of the positional structure of the oil injection device and the swing vibration mechanism shown in the present invention; Figure 8 is the one shown in the present invention Figure 7 schematic diagram of the enlarged structure at position A in

[0022] In the figure: 1. Oil injection device; 101. Workbench; 102. Oil injection nozzle; 103. Placing frame; 2. Detection and isolation mechanism; 201. Oil injection column; 202. L-shaped cylinder column; 203. Reciprocating spring; 204. Piston piece; 205. First contact; 206. Baffle plate; 207. Second contact; 208. First air outlet; 209. Sealing plate; 210. Driving motor; 211. Rotating screw; 212. Moving plate; 213. Guide rod; 214. Second air outlet; 215. Exhaust pipe; 216. Exhaust hole; 217. Blocking block; 3. Swing vibration mechanism; 301. Ejector rod; 302. Swing rod; 303. Fixed shaft; 304. Fixed plate; 305. Vibration block. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. Embodiment 1

[0024] As Figures 1 to 8 shown, one implementation mode of the present invention is: A split-type gearbox processing and assembly tooling, including an oil injection device 1, the oil injection device 1 includes a workbench 101, an oil injection nozzle 102 is slidably arranged on the top of the workbench 101, a placing frame 103 is slidably arranged on the top of the workbench 101, and a detection and isolation mechanism 2 is arranged below the oil injection device 1; The detection and isolation mechanism 2 includes an oil injection column 201 fixedly arranged at the bottom of the oil injection nozzle 102, an L-shaped cylinder column 202 is fixedly arranged on the outer ring surface of the oil injection column 201, the L-shaped cylinder column 202 is composed of a horizontal column and a vertical column, a second contact 207 is fixedly arranged in the horizontal column of the L-shaped cylinder column 202, and a first contact 205 is slidably arranged in the horizontal column of the L-shaped cylinder column 202. By abutting the first contact 205 against the second contact 207, the situation of excessive or insufficient injection of lubricating grease into the box body can be avoided.

[0025] Specifically, although the existing device can complete the injection of grease into the gearbox, there are many other components inside the gearbox in addition to gears and bearings, such as drive shafts, seals, sensors, etc. The design of the oil cavity needs to avoid these components to prevent interference. Therefore, in order to adapt to these complex internal layouts, the shape of the oil cavity often becomes irregular. An irregular oil cavity shape makes oil injection difficult. During the oil injection process, it is difficult to accurately predict and control the rising situation of the liquid level of the oil in the irregular oil cavity. For example, local protrusions or depressions in the oil cavity will cause the oil to accumulate or form dead corners at these parts, resulting in an inability to accurately judge the oil level during oil injection, thereby affecting the oil injection accuracy. Therefore, the present invention solves this problem by setting a certain structure. When the gearbox needs to be oil-injected, first place the assembled gearbox in the placement frame 103 on the workbench 101. At this time, control the electric guide rail in the oil injection nozzle 102 to descend. When the oil injection nozzle 102 moves to a suitable position, the oil injection nozzle 102 starts to complete the grease injection operation inside the gearbox. However, in addition to gears and bearings inside the gearbox, there are many other components, such as drive shafts, seals, sensors, etc. The design of the oil cavity needs to avoid these components to prevent interference. Therefore, in order to adapt to these complex internal layouts, the shape of the oil cavity often becomes irregular. An irregular oil cavity shape makes oil injection difficult. During the oil injection process, it is difficult to accurately predict and control the rising situation of the liquid level of the oil in the irregular oil cavity. For example, local protrusions or depressions in the oil cavity will cause the oil to accumulate or form dead corners at these parts, resulting in an inability to accurately judge the oil level during oil injection, thereby affecting the oil injection accuracy. At this time, when the oil injection nozzle 102 descends, it will synchronously drive the oil injection column 201 and the L-shaped cylinder column 202 to descend synchronously, and when descending, it will contact the top of the gearbox. At this time, the grease injection work inside the gearbox is carried out through the oil injection column 201, and the gas inside the gearbox will push the first contact 205 to slide through the L-shaped cylinder column 202. When the amount of grease injected into the gearbox reaches the appropriate measurement, the first contact 205 will abut against the second contact 207 and then stop the oil injection work, thereby being able to reduce the situation of too much or too little grease injection into the box body.

[0026] As Figure 3 shown, a reciprocating spring 203 is fixedly connected to the inner cavity of the L-shaped cylinder column 202 in this embodiment. One end of the reciprocating spring 203 is fixedly connected to a piston piece 204, and the other side of the piston piece 204 is fixedly connected to a first contact 205. A blocking plate 206 is fixedly connected to one end of the transverse rod of the L-shaped cylinder column 202 close to the oil injection column 201. A second contact 207 is fixedly connected to the side of the blocking plate 206 away from the oil injection column 201. A first air outlet 208 is penetrated and opened on the outer ring surface of the transverse rod of the L-shaped cylinder column 202, and a sealing plate 209 is fixedly connected to the bottom of the oil injection column 201.

[0027] Specifically, place the gearbox on the upper part of the placement frame 103. At this time, start the drive assembly of the grease injector 102 to drive the detection and isolation mechanism 2 to move towards the gearbox. When the bottom of the sealing plate 209 is in close contact with the top of the gearbox, the drive assembly of the grease injector 102 will stop running. At this time, start the grease injector 102 to inject grease into the interior of the gearbox body. When the grease is injected into the gearbox, the air inside the gearbox will correspondingly discharge out of the box body. However, since the sealing plate 209 seals the top of the gearbox, the air in the gearbox can only flow into the L-shaped cylinder column 202 at this time, and will push the piston piece 204 to move linearly along the transverse column of the L-shaped cylinder column 202 while flowing. At this time, the air in the cavity between the grease injection column 201 and the piston piece 204 in the L-shaped cylinder column 202 will be discharged through the first air outlet 208. When the grease injector 102 continuously injects grease into the box body, the air flowing into the L-shaped cylinder column 202 will also increase synchronously, and then will continuously push the piston piece 204 to approach the blocking plate 206, and then will drive the first contact 205 to move synchronously. Since the first contact 205 and the second contact 207 are on the same horizontal plane, when an appropriate amount of grease is injected into the box body, the first contact 205 and the second contact 207 will abut against each other, and the grease injection work of the grease injector 102 will be paused.

[0028] As Figure 4 As shown in the figure, a sealing plate 209 is fixedly connected to the bottom of the grease injection column 201 in this embodiment. An inner cavity is opened in the sealing plate 209. A drive motor 210 is fixedly connected to the side wall of the inner cavity of the sealing plate 209. The output shaft of the drive motor 210 is fixedly connected with a rotating screw rod 211. A moving plate 212 is threadedly connected to the outer ring surface of the rotating screw rod 211. A guide rod 213 is fixedly connected to the side wall of the inner cavity of the sealing plate 209. The moving plate 212 is slidably connected to the side of the guide rod 213.

[0029] Specifically, when the first contact 205 abuts against the second contact 207, the drive motor 210 fixed to the inner wall of the sealing plate 209 will be started. When the drive motor 210 is started, its output shaft will drive the rotating screw 211 fixed thereto to rotate synchronously. At the same time, since the rotating screw 211 is threadedly connected to the moving plate 212, when the rotating screw 211 rotates, the moving plate 212 will move synchronously. However, since the moving plate 212 slides on the side wall of the guide rod 213, when the rotating screw 211 rotates, the moving plate 212 will perform a linear motion along the guide of the guide rod 213 and will synchronously drive the holes opened in it and subsequent components to move synchronously. Since the moving plate 212 is in close contact with the bottom of the vertical columns of the grease injection column 201 and the L-shaped cylinder column 202, and the upper part of the moving plate 212 is smooth, when the holes opened in the moving plate 212 are misaligned with the grease injection column 201, the grease inside the grease injection column 201 will be temporarily stored inside the grease injection column 201, preventing the grease remaining inside the grease injection column 201 from falling into the box body when the grease injection nozzle 102 pauses. The gas extruded by the grease inside the gearbox pushes the first contact 205 to abut against the second contact 207 to pause the grease injection work of the grease injection nozzle 102, and the grease injection amount can be automatically adapted and controlled by the volume of the discharged air. Whether the internal structure of the gearbox is complex or simple, an appropriate amount of grease can be injected relatively accurately, so that the device has good versatility and flexibility. Secondly, the movement of the moving plate 212 can timely block the grease remaining inside the grease injection column 201, thereby further reducing the situation of excessive or insufficient grease injection into the box body, and then improving the accuracy of the grease injection work.

[0030] As Figure 5 shown, a second air outlet 214 is opened inside the moving plate 212 of this embodiment. A exhaust pipe 215 is fixedly connected inside the moving plate 212. The exhaust pipe 215 is composed of a longitudinal column and a transverse column. Exhaust holes 216 are opened on the outer ring surface of the transverse column of the exhaust pipe 215. One end of the transverse column of the exhaust pipe 215 is fixedly connected with a blocking block 217, and the blocking block 217 is slidably connected through the inside of the sealing plate 209.

[0031] Specifically, when the moving plate 212 moves linearly along the guide of the guide rod 213, the second air outlet 214 will also move linearly synchronously, and will drive the exhaust pipe 215, the exhaust hole 216 and the blocking block 217 to move linearly synchronously. When the second air outlet 214 and the central axis of the L-shaped cylinder 202 are on the same vertical plane, the exhaust hole 216 opened on the transverse column of the exhaust pipe 215 will extend out of the sealing plate 209. At this time, the reciprocating spring 203 will perform the reset work, and will drive the piston piece 204 to move synchronously while resetting. At this time, the air temporarily stored in the L-shaped cylinder 202 in the gearbox will flow into the second air outlet 214. Since the second air outlet 214 is connected to the longitudinal column of the exhaust pipe 215, the air flowing into the second air outlet 214 will flow out of the detection and isolation mechanism 2 through the exhaust hole 216 opened on the exhaust pipe 215. Thus, it can be avoided that when the sealing plate 209 leaves the top of the gearbox after the oil injection work is completed, the air inside the L-shaped cylinder 202 is sprayed onto the surface of the grease, and it can prevent the formation of an unstable gas-liquid interface on the surface of the grease, so that the grease is more evenly distributed on each friction part during the operation of the gearbox, ensuring a good lubrication effect.

[0032] As Figure 7 and Figure 8 shown, a swinging vibration mechanism 3 for vibration is arranged on the side of the detection and isolation mechanism 2 in this embodiment. The swinging vibration mechanism 3 includes a jacking rod 301. The jacking rod 301 is fixedly connected to the side of the blocking block 217. One end of the jacking rod 301 away from the blocking block 217 abuts against a swinging rod 302. A fixed shaft 303 is arranged inside the swinging rod 302. The swinging rod 302 is rotatably connected to the outer ring surface of the fixed shaft 303. Both ends of the fixed shaft 303 are fixedly connected with fixing plates 304. A vibration block 305 is fixedly connected to the side of the placement frame 103.

[0033] Specifically, when the blocking block 217 extends into the second contact 207, it will synchronously drive the ejector rod 301 fixed to its side to move synchronously. Since the ejector rod 301 and the swing rod 302 are articulated by a universal ball, when the ejector rod 301 moves, it will push the swing rod 302 to rotate around the fixed shaft 303. When the blocking block 217 stops extending, the bottom of the swing rod 302 will contact the vibration block 305 fixed to the side of the placement frame 103. At this time, the drive in the grease injector 102 will be activated to drive the other components except the vibration block 305 to move upward. Since the swing rod 302 is an elastic rod and the vibration block 305 has a wavy structure, during the movement, the swing rod 302 will generate slight vibrations on the placement frame 103 through the vibration block 305, and the vibrations will be transmitted to the gearbox placed on the upper part of the placement frame 103 through the placement frame 103, so that the grease can fill the tiny gaps and depressions, reduce the lubrication dead corners, improve the lubrication effect, and reduce the wear of components. Embodiment 2

[0034] As Figures 1 to 8 shown, compared with Embodiment 1, another implementation manner of the present invention is: a method for processing and assembling a split-type gearbox, and the specific steps include: Box body processing: First, according to the design requirements of the gearbox, process the split-type gearbox body, and use a numerical control machine tool to ensure the dimensional accuracy and surface roughness of the gear mounting holes. Gear and bearing assembly: Preheat the bearings and gears, and quickly press the bearings into the box body holes after the preheating is completed. Secondly, hoist the gear shaft to the box body by a hoisting device and adjust the clearance of the gear meshing. Grease injection operation: After the gear assembly is completed, the grease injector 102 will drive the sealing plate 209 to the top of the gearbox and press the top of the gearbox tightly through the sealing plate 209. At this time, start the grease injector 102 to inject grease into the gearbox. When the grease flows into the gearbox along the grease injection column 201, it will squeeze the air in the gearbox out of the box body. Since the top of the gearbox is covered by the sealing plate 209, the air will flow into the L-shaped cylinder column 202 at this time and push the piston piece 204 to move along the guide of the horizontal column of the L-shaped cylinder column 202, and will drive the first contact 205 to move synchronously while moving. When the first contact 205 abuts against the second contact 207, the grease injection device 1 will stop injecting grease into the gearbox to avoid over-injection or under-injection. General assembly and debugging: After the grease injection work is completed, align the upper and lower box bodies and fasten the bolts in a symmetric order, and check the clearance of the box body joint surface to ensure no risk of oil leakage. Secondly, connect the motor and conduct a step load test.

[0035] Working principle: Place the gearbox on the upper part of the placement frame 103. At this time, start the drive assembly of the grease injector 102 to drive the detection and isolation mechanism 2 to move towards the gearbox. When the bottom of the sealing plate 209 is in close contact with the top of the gearbox, the drive assembly of the grease injector 102 will stop running. At this time, start the grease injector 102 to inject grease into the interior of the gearbox body. When the grease is injected into the gearbox, the air inside the gearbox will correspondingly be discharged outside the box. However, since the sealing plate 209 seals the top of the gearbox, the air in the gearbox can only flow into the L-shaped cylinder column 202 at this time, and will push the piston piece 204 to move linearly along the transverse column of the L-shaped cylinder column 202 while flowing. At this time, the air in the cavity between the injection column 201 and the piston piece 204 in the L-shaped cylinder column 202 will be discharged through the first air outlet 208. When the grease injector 102 continuously injects grease into the box body, the air flowing into the L-shaped cylinder column 202 will also increase synchronously, and will continuously push the piston piece 204 to approach the blocking plate 206, and then drive the first contact 205 to move synchronously. Since the first contact 205 and the second contact 207 are on the same horizontal plane, when an appropriate amount of grease is injected into the box body, the first contact 205 and the second contact 207 will abut against each other, and the grease injection work of the grease injector 102 will be paused.

[0036] When the first contact 205 abuts against the second contact 207, the drive motor 210 fixed to the inner wall of the sealing plate 209 will be started. When the drive motor 210 is started, its output shaft will drive the rotating screw 211 fixed thereto to rotate synchronously. At the same time, since the rotating screw 211 is threadedly connected to the moving plate 212, when the rotating screw 211 rotates, the moving plate 212 will move synchronously. However, since the moving plate 212 slides on the side wall of the guide rod 213, when the rotating screw 211 rotates, the moving plate 212 will perform a linear motion along the guide of the guide rod 213, and will synchronously drive the holes opened in it and the subsequent components to move synchronously. Since the moving plate 212 is in close contact with the bottom of the vertical columns of the grease injection column 201 and the L-shaped cylinder column 202, and the upper part of the moving plate 212 is smooth, when the hole opened in the moving plate 212 is misaligned with the grease injection column 201, the grease inside the grease injection column 201 will be temporarily stored inside the grease injection column 201, avoiding the grease remaining inside the grease injection column 201 from falling into the box body when the grease injection nozzle 102 pauses. The gas extruded by the grease inside the gearbox pushes the first contact 205 to abut against the second contact 207 to pause the grease injection work of the grease injection nozzle 102, and can automatically adapt to and control the grease injection amount by discharging the volume of air. Whether it is a large or small gearbox, an appropriate amount of grease can be injected relatively accurately, so that the device has good versatility and flexibility. Secondly, the movement of the moving plate 212 can timely block the grease remaining inside the grease injection column 201, thereby further reducing the situation of too much or too little grease injected into the box body, and then improving the accuracy of the grease injection work.

[0037] When the moving plate 212 performs a linear motion along the guide of the guide rod 213, the second air outlet 214 will also perform a linear motion synchronously, and will synchronously drive the exhaust pipe 215, the exhaust hole 216 and the blocking block 217 to perform a synchronous linear motion. When the second air outlet 214 and the central axis of the L-shaped cylinder column 202 are on the same vertical plane, the exhaust hole 216 opened on the horizontal column of the exhaust pipe 215 will extend out of the sealing plate 209. At this time, the reciprocating spring 203 will perform a reset work, and will drive the piston piece 204 to move synchronously while resetting. At this time, the air temporarily stored inside the L-shaped cylinder column 202 in the gearbox will flow into the second air outlet 214. Since the second air outlet 214 is communicated with the longitudinal column of the exhaust pipe 215, the air flowing into the second air outlet 214 will flow out of the inside of the detection and isolation mechanism 2 through the exhaust hole 216 opened on the exhaust pipe 215, thereby being able to avoid the air inside the L-shaped cylinder column 202 being sprayed onto the surface of the grease when the sealing plate 209 leaves the top of the gearbox after the grease injection work is completed, and being able to prevent the formation of an unstable gas-liquid interface on the surface of the grease, so that the grease is more evenly distributed at each friction part during the operation of the gearbox, ensuring good lubrication effect.

[0038] When the blocking block 217 extends into the second contact 207, it will synchronously drive the ejector rod 301 fixed to its side to move synchronously. Since the ejector rod 301 and the swing rod 302 are articulated by a universal ball, when the ejector rod 301 moves, it will push the swing rod 302 to rotate around the fixed shaft 303. When the blocking block 217 stops extending, the bottom of the swing rod 302 will contact the vibration block 305 fixed to the side of the placement frame 103. At this time, the drive in the grease injector 102 will be activated to drive the remaining components except the vibration block 305 to move upward. Since the swing rod 302 is an elastic rod and the vibration block 305 has a wavy structure, during the movement, the swing rod 302 will generate a slight vibration on the placement frame 103 through the vibration block 305, and transmit the vibration to the gearbox placed on the upper part of the placement frame 103 through the placement frame 103, so as to enable the lubricating grease to fill the tiny gaps and depressions, reduce the lubrication dead angles, improve the lubrication effect, and reduce the wear of the components.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A split gearbox processing and assembly tooling, including an oil injection device (1), the oil injection device (1) includes a workbench (101), a nozzle (102) is slidably arranged on the top of the workbench (101), and a placement frame (103) is slidably arranged on the top of the workbench (101), characterized in that; A detection and isolation mechanism (2) is provided at the lower part of the oil injection device (1); The detection and isolation mechanism (2) includes an oil injection column (201) fixedly arranged at the bottom of the oil injection nozzle (102). An L-shaped cylindrical column (202) is fixedly arranged on the outer circumferential surface of the oil injection column (201). The L-shaped cylindrical column (202) is composed of a horizontal column and a vertical column. A second contact (207) is fixedly arranged in the horizontal column of the L-shaped cylindrical column (202). A first contact (205) is slidably arranged in the horizontal column of the L-shaped cylindrical column (202). When the first contact (205) abuts against the second contact (207), it can prevent the situation of too much or too little grease injection into the box body.

2. The split gearbox processing and assembly tooling according to claim 1, characterized in that: A reciprocating spring (203) is fixedly connected to the inner cavity of the L-shaped cylindrical column (202). One end of the reciprocating spring (203) is fixedly connected to a piston sheet (204). The other side of the piston sheet (204) is fixedly connected to a first contact (205). A blocking plate (206) is fixedly connected to one end of the horizontal rod of the L-shaped cylindrical column (202) close to the oil injection column (201). A second contact (207) is fixedly connected to the side of the blocking plate (206) away from the oil injection column (201). A first air outlet (208) is penetrated and opened on the outer circumferential surface of the horizontal rod of the L-shaped cylindrical column (202).

3. The split gearbox processing and assembly tooling according to claim 2, characterized in that: The second contact (207) and the first contact (205) are on the same horizontal plane. The opening of the first air outlet (208) can facilitate the movement of the piston sheet (204) when it is extruded by gas.

4. A split gearbox processing and assembly tooling according to claim 2, characterized in that: A sealing plate (209) is fixedly connected to the bottom of the oil injection column (201). An inner cavity is opened in the sealing plate (209). A driving motor (210) is fixedly connected to the side wall of the inner cavity of the sealing plate (209). A rotating screw rod (211) is fixedly connected to the output shaft of the driving motor (210). A moving plate (212) is threadedly connected to the outer circumferential surface of the rotating screw rod (211). A guide rod (213) is fixedly connected to the side wall of the inner cavity of the sealing plate (209). The moving plate (212) is slidably connected to the side of the guide rod (213).

5. The split gearbox processing and assembly tooling according to claim 4, wherein: The bottom of the L-shaped cylindrical column (202) is fixedly connected to the top of the sealing plate (209). Holes adapted to the diameters of the oil injection column (201) and the vertical column of the L-shaped cylindrical column (202) are penetrated and opened in the sealing plate (209). Holes adapted to the diameters of the oil injection column (201) and the vertical column of the L-shaped cylindrical column (202) are penetrated and opened in the moving plate (212). And during the oil injection process, the two holes on the moving plate (212) will be on the same vertical plane as the two holes on the sealing plate (209).

6. The split gearbox processing and assembly tooling according to claim 4, characterized in that: A second air outlet (214) is opened in the moving plate (212). An exhaust pipe (215) is fixedly connected to the inside of the moving plate (212). The exhaust pipe (215) is composed of a longitudinal column and a horizontal column. Exhaust holes (216) are opened on the outer circumferential surface of the horizontal column of the exhaust pipe (215). A blocking block (217) is fixedly connected to one end of the horizontal column of the exhaust pipe (215). The blocking block (217) is penetrated and slidably connected to the inside of the sealing plate (209).

7. A split gearbox processing and assembly tooling according to claim 6, characterized in that: The second air outlet (214) is adapted to the diameter of the vertical column of the L-shaped cylinder column (202). The longitudinal column of the exhaust pipe (215) is communicated with the second air outlet (214). The exhaust hole (216) is used to discharge the gas temporarily stored inside the L-shaped cylinder column (202) into the sealing plate (209).

8. A split gearbox processing and assembly tooling according to claim 6, characterized in that: A swing vibration mechanism (3) for vibration is arranged on the side of the detection and isolation mechanism (2). The swing vibration mechanism (3) includes a jacking rod (301). The jacking rod (301) is fixedly connected to the side of the blocking block (217). One end of the jacking rod (301) away from the blocking block (217) abuts against a swing rod (302). A fixed shaft (303) is arranged inside the swing rod (302). The swing rod (302) is rotatably connected to the outer ring surface of the fixed shaft (303). Both ends of the fixed shaft (303) are fixedly connected with fixing plates (304). A vibration block (305) is fixedly connected to the side of the placement frame (103).

9. The split gearbox processing and assembly tooling according to claim 8, wherein: The swing rod (302) is an elastic rod. The swing rod (302) and the vibration block (305) are on the same vertical plane. The swing rod (302) does not contact the vibration block (305) during the normal oil injection process of the equipment. When the oil injection is completed, the blocking block (217) will protrude from the sealing plate (209). At this time, the bottom of the swing rod (302) will contact the vibration block (305) and generate vibration during the movement process.

10. A processing and assembly method for a split gearbox, which is applied to a processing and assembly tooling for a split gearbox as described in claims 1-9, and is characterized in that: Specifically: Box body processing: First, according to the design requirements of the gearbox, process the split gearbox box body, and use a numerical control machine tool to ensure the dimensional accuracy and surface roughness of the gear mounting holes. Gear and bearing assembly: Preheat the bearings and gears, and quickly press the bearings into the box body holes after the preheating is completed. Secondly, hoist the gear shaft to the box body through a hoisting device and adjust the meshing clearance of the gears. Oil injection operation: After the gear assembly is completed, the oil injection nozzle (102) will drive the sealing plate (209) to the top of the gearbox and tightly press the top of the gearbox through the sealing plate (209). At this time, start the oil injection nozzle (102) to inject oil into the gearbox. When the lubricating grease flows into the gearbox along the oil injection column (201), the air in the gearbox will be squeezed out of the box body. Since the top of the gearbox is covered by the sealing plate (209), the air will flow into the L-shaped cylinder column (202) at this time and push the piston piece (204) to move along the guide of the transverse column of the L-shaped cylinder column (202), and will drive the first contact point (205) to move synchronously at the same time. When the first contact point (205) abuts against the second contact point (207), the oil injection device (1) will stop injecting oil into the gearbox to avoid the situation of over-injection or under-injection. General assembly and debugging: After the oil injection work is completed, align the upper and lower box bodies and tighten the bolts in a symmetrical order, and check the gap of the box body joint surface to ensure no oil leakage risk. Secondly, connect the motor and conduct a step load test.

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