Combined repair device and repair method

Abstract

The invention discloses a combined repair device and method. The device comprises a gearbox repair mechanism and a clutch repair mechanism. The gearbox repairing mechanism comprises a gearbox disassembling part and an oil storage part; the clutch repairing mechanism comprises a clutch assembling part and a measuring part; a guide rail is fixedly connected to the table top of the gearbox repairing mechanism, and the clutch repairing mechanism is clamped to the guide rail and is in sliding connection with the gearbox repairing mechanism through the guide rail. The gearbox disassembling part is mounted above the oil storage part, oil flows out when the gearbox is disassembled, and the overflowing oil is guided and collected through the oil storage part to avoid oil pollution; the measuring part is installed on one side of the clutch assembling part, connected with the supercharging device through an air pipe and used for inflating and supercharging a clutch on the clutch assembling part so as to simulate the running state of the clutch, and therefore air tightness evaluation and design requirement specification evaluation are carried out. Oil pollution and repair complexity are reduced; and high-precision maintenance of the clutch is realized.

Description

Technical Field

[0001] The invention belongs to the field of mechanical engineering, and in particular relates to a combined repair device and a repair method. Background Art

[0002] In the field of large-scale off-road engineering machinery, it is often necessary to repair the gearbox and the clutch in the box to troubleshoot and solve problems such as abnormal gear position and abnormal noise. When repairing the gearbox and clutch, due to the different gear settings and spatial arrangements of the gearbox, the gearbox and clutch often have many internal parts and different sizes, and sometimes it is necessary to manually detect the clutch stroke after repair by blowing with a handheld air gun, which makes the clutch detection and repair process complicated; secondly, since there is residual oil in the gearbox after operation, the oil is very easy to leak during the disassembly process, and the oil leakage will hinder the repair work; at the same time, if the leaked oil is not collected and cleaned in time, it will also cause environmental pollution and oil waste.

[0003] In addition, in the actual maintenance process, since the clutch and gearbox are heavy, the maintenance of the clutch and gearbox is inconvenient to carry, and the entire maintenance process is labor-intensive and requires high transportation and maintenance costs. Therefore, the existing rework equipment has low maintenance efficiency and different clutches need to build different types of auxiliary stands when repairing, which further increases the complexity and cost of the rework process. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a combined repair device and repair method, which can reduce oil contamination and repair complexity when repairing the gearbox and perform high-precision repair of the clutch.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a combined repair device, including a gearbox repair mechanism and a clutch repair mechanism; A guide rail is provided on the table of the gearbox repair mechanism, and the clutch repair mechanism is slidably connected to the gearbox repair mechanism via the guide rail; The gearbox repair mechanism comprises a gearbox disassembly section and an oil storage section; The clutch repair mechanism includes a clutch assembly part and a measuring part; The gearbox disassembly part is installed above the oil storage part, and is used to guide the overflowed oil into the oil storage part when the gearbox is disassembled; The measuring part is installed on one side of the clutch assembly part, and the measuring part is connected to the boosting device through an air pipe, and is used to inflate the clutch on the clutch assembly part.

[0006] Optionally, the gearbox disassembly unit is composed of two groups of symmetrically arranged disassembly supports, and each group of disassembly supports includes a support beam and a suspension frame installed on the support beam.

[0007] Optionally, the oil storage portion includes an oil guide plate installed at the bottom of the support beam, an oil storage tank arranged below the oil guide plate, a filter assembly installed in the oil storage tank, and a support leg installed at the bottom of the oil storage tank; The bottom of the oil storage tank is provided with an oil port and an oil drain switch; The oil storage tank is placed on the transfer mechanism through supporting legs.

[0008] Optionally, a plurality of filter holes and lifting holes are provided on the oil guide plate, wherein the plurality of filters are used for oil introduction and coarse filtration, and the lifting holes are convenient for lifting.

[0009] Optionally, the clutch assembly portion includes an assembly support placed on the transfer mechanism, a plurality of longitudinal support plates respectively installed in the assembly support, and a transverse support plate arranged between the longitudinal support plates; Among them, multiple longitudinal support plates are fixed along four directions of the assembly support, and rectangular grooves are formed between the multiple longitudinal support plates; the rectangular grooves are used to accommodate transverse support plates, and both ends of the transverse support plates are fixed to the assembly support by bolts.

[0010] Optionally, a plurality of screw holes of different heights are provided on both sides of the assembly support for adjusting the height of the transverse support plate.

[0011] Optionally, a middle hole is provided on the transverse support plate, and an assembly hole corresponding to the middle hole is provided on the top surface of the assembly support, the assembly hole is used for plugging with the clutch shaft, and the middle hole is used for fixing with the clutch shaft end.

[0012] Optionally, the measuring part includes a pipe clamp plate installed on one side of the longitudinal support plate and a plurality of sensors; The pipe clamp plate is provided with a fixing hole for plugging with the trachea; One end of the air pipe is connected to the supercharging device, and the other end is used to be plugged into the oil inlet of the clutch shaft end to inflate the clutch.

[0013] Optionally, the transfer mechanism consists of a transfer table, a handrail, and a plurality of universal wheels. The transfer table is fixedly connected to the handrail, and the universal wheels are fixedly connected to the corners of the transfer table. The universal wheels are provided with a brake switch to ensure the stability of the stop and repair process of the transfer mechanism.

[0014] Optionally, the multiple sensors include an air pressure sensor and a position sensor. The air pressure sensor is installed in the air pipe to monitor the input air pressure and determine the air tightness based on the indication; the position sensor is installed above the clutch to detect changes in the clutch piston position.

[0015] In a second aspect, the present invention provides a combined rework method, based on the above-mentioned rework device, the method comprises: Step 1, fix the gearbox to the gearbox disassembly part, and disassemble the gearbox. During the disassembly process, the oil in the gearbox enters the oil tank of the oil storage part through the oil guide plate; Step 2: Take out the clutch inside the gearbox and place it on the clutch assembly part. Pressurize the clutch through the measuring part. The air pressure pushes the clutch piston to move axially. The piston pushes the clutch friction plate to press tightly. The engagement process of the clutch in actual working process is simulated, and the air pressure and clutch piston displacement are detected in real time. Step 3: judging whether the clutch pressure value meets the air tightness requirement and whether the piston stroke meets the design requirement according to the preset air pressure threshold and the comparison result of the detected air pressure, distance threshold and clutch piston displacement; Step 4: According to the clutch judgment result of step 3, the faulty clutch is obtained, and the faulty clutch and the clutch repair mechanism are slid along the guide rail to the repair area, and the clutch fixed on the clutch assembly part is disassembled and repaired. After the repair, the air pressure and displacement detection in step 2 are repeated again until the detected air pressure and clutch piston displacement meet the relevant thresholds, and then the repaired normal clutch is obtained; Step 5: Send the repaired clutch and clutch repair mechanism along the guide rail to the gearbox repair mechanism for reassembly with the gearbox, and complete the gearbox repair after reassembly.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The gearbox repair mechanism and the clutch repair mechanism can simultaneously carry out repair support for the gearbox and the clutch in the box, realize the modular process of gearbox and clutch repair and clutch assembly, inspection and transportation after repair, improve the repair efficiency of the gearbox and clutch and reduce the tediousness of repair, while avoiding oil contamination during the repair process.

[0017] 2. The measuring unit can quickly and accurately measure the pressure and stroke of the clutch before and after repair, and adjust and repair the clutch in real time based on the results.

[0018] 3. The device has a compact and simple structure. It can realize the repair support of the gearbox and clutch without the help of other complex tooling. It can be flexibly transported through the transfer mechanism, which reduces the labor intensity of workers in the process of transporting parts and reduces other physically demanding processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the combined repair device of the present invention; Figure 21 is a diagram showing an embodiment of a gearbox repair mechanism of the present invention; Figure 3 It is a diagram showing an embodiment of the oil storage unit of the present invention; Figure 4 1 is a diagram showing an embodiment of a clutch repair mechanism of the present invention; Figure 5 It is a cross-sectional view of the clutch repair mechanism of the present invention.

[0020] In the figure: 1. combined repair device; 2. gearbox repair mechanism; 3. gearbox disassembly part; 301. support beam; 302. suspension frame; 4. oil storage part; 5. support leg; 6. oil guide plate; 7. filter hole; 8. lifting hole; 9. oil storage tank; 10. filter assembly; 11. oil drain switch; 12. guide rail; 13. clutch repair mechanism; 14. clutch assembly part; 15. measuring part; 16. transfer mechanism; 17. pipe clamp; 18. assembly support; 19. longitudinal support plate; 20. top surface of assembly support; 201. assembly hole; 21. transverse support plate; 211. middle hole; 22. transfer table; 23. handrail; 24. universal wheel; 25. air pressure sensor; 26. position sensor; 27. gearbox; 28. clutch; 29. ​​air pipe; 30. supercharging device; 31. piston; 32. friction plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0022] This embodiment provides a combined repair device, such as Figure 1 to Figure 2 The combined repair device 1 shown is composed of a gearbox repair mechanism 2 and a clutch repair mechanism 13; the gearbox repair mechanism 2 includes a gearbox disassembly part 3 and an oil storage part 4; the clutch repair mechanism 13 includes a clutch assembly part 14 and a measuring part 15; a guide rail 12 is fixedly connected to the table of the gearbox repair mechanism 2, and the clutch repair mechanism 13 is clamped on the guide rail 12 and slidably connected to the gearbox repair mechanism 2 through the guide rail 12.

[0023] The gearbox disassembly part 3 is installed above the oil storage part 4. When the gearbox 27 is disassembled, oil flows out. The overflowed oil is diverted and collected through the oil storage part 4 to avoid oil contamination; the measuring part 15 is installed on one side of the clutch assembly part 14, and is connected to the boost device 30 through the air pipe 29, and is used to inflate and boost the clutch 28 on the clutch assembly part 14 to simulate the operating state of the clutch 28, so as to perform air tightness evaluation and design requirement specification evaluation.

[0024] Optionally, the gearbox disassembly part 3 is composed of two groups of disassembly supports arranged symmetrically, each group of disassembly supports includes: a support beam 301 and a suspension frame 302, the suspension frame 302 is installed on the support beam 301, and there is a space between the support beams 301 that is adapted to the shape of the gearbox 27, so that the gearbox 27 can play a supporting role.

[0025] Optionally, the oil storage part 4 includes: an oil guide plate 6, an oil storage tank 9, a filter assembly 10 and a support leg 5; the oil guide plate 6 is installed at the bottom of the support beam 301, the oil storage tank 9 is installed below the oil guide plate 6, the filter assembly 10 is installed inside the oil storage tank 9 for filtering the oil, the support leg 5 is installed at the bottom of the oil storage tank 9, and the bottom of the oil storage tank 9 is provided with an oil port and an oil drain switch 11 for recovering the oil; the oil storage tank 9 is placed on the transfer mechanism 16 through the support leg 5.

[0026] like Figure 3 As shown, a plurality of filter holes 7 and lifting holes 8 are provided on the oil guide plate 6. The plurality of filters are used for oil introduction and coarse filtration, and the lifting holes 8 are convenient for lifting.

[0027] Optional, such as Figure 4 As shown, the clutch assembly part 14 includes: an assembly support 18, a longitudinal support plate 19 and a transverse support plate 21; the assembly support 18 is placed on the transfer mechanism 16, and multiple longitudinal support plates 19 and transverse support plates 21 are installed in the assembly support 18; multiple longitudinal support plates 19 are respectively fixedly connected to the four angles of the assembly support 18 and form a rectangular groove; a transverse support plate 21 is provided in the rectangular groove, and both ends of the transverse support plate 21 are fixed to the assembly support 18 by bolts.

[0028] Optionally, multiple screw holes of different heights are opened on both sides of the assembly support 18 for adjusting the height of the transverse support plate 21. This embodiment is not limited to other height adjustment devices, such as a combination of a lifting screw and a transverse support plate 21, and can be improved accordingly according to the model of the clutch 28.

[0029] Optional, such as Figure 4 and Figure 5 As shown, a middle hole 211 is opened on the transverse support plate 21, and an assembly hole 201 corresponding to the middle hole 211 is opened on the top surface of the assembly support 18. The assembly hole 201 is used to be plugged into the clutch 28 shaft, and the middle hole 211 is used to be plugged into the clutch 28 shaft. The transverse support plate 21 and the top surface of the assembly support 18 with corresponding apertures can also be replaced according to the model of the clutch 28.

[0030] Optional, such as Figure 4The measuring part 15 shown includes: a tube clamp 17, an air pipe 29 and a variety of sensors; the tube clamp 17 is fixedly installed on one side of the longitudinal support plate 19, and a fixing hole is opened on the tube clamp 17 for plugging with the air pipe 29; one end of the air pipe 29 is connected to the boost device 30, and the other end is located at the bottom of the middle hole 211 and is installed at the oil inlet of the shaft end of the clutch 28, which is used to inflate the shaft end of the clutch 28.

[0031] Optionally, the multiple sensors include an air pressure sensor 25 and a position sensor 26. The air pressure sensor 25 is installed in the air pipe 29 to monitor the input air pressure and determine the air tightness based on the indication; the position sensor 26 is installed above the clutch 28 to detect the position change value of the clutch piston 31.

[0032] Optional, such as Figure 4 As shown, the transfer mechanism 16 is composed of a transfer table 22, a handrail 23, and a plurality of universal wheels 24; the transfer table 22 is fixedly connected to the handrail 23, and the universal wheels 24 are fixedly connected to the corners of the transfer table 22; the universal wheels 24 are provided with brake switches to ensure the stability of the stopping and repairing process of the transfer mechanism 16, and are used for the rapid transfer and maintenance of the clutch 28. Example

[0033] This embodiment provides a combined repair method, based on the above-mentioned repair device, including a modular process of disassembling and repairing the gearbox 27, disassembling and repairing the clutch 28 inside the gearbox 27, and detecting the stroke of the piston 31 and the air tightness during the repair of the clutch 28; S1. Fix the gearbox 27 to the disassembly support of the gearbox disassembly part 3. During the disassembly process, the oil in the gearbox flows into the oil storage part 4, passes through the filter hole 7 of the oil guide plate 6, and then is filtered by the filter assembly 10 and gathered into the oil storage tank 9, and is recycled from the oil drain switch 11; S2. Take out the clutch 28 inside the gearbox 27 and place it on the top surface 20 of the assembly support of the clutch assembly part 14. Fix the air pipe 15 to the pipe clamping plate 17 so that the air pipe 29 is aligned with the oil inlet of the clutch 28. Start the booster 30 so that the air pipe 29 blows air to the oil hole of the clutch 28 to increase the pressure. The air pressure pushes the clutch piston 31 to move axially. The piston 31 pushes the friction plate 32 of the clutch 28 to press tightly, simulating the engagement process of the clutch 28 in the actual working process. In this process, the indication of the air pressure sensor 25 can be used to determine whether the pressure value of the clutch 28 meets the design requirements, and then determine the air tightness of the clutch 28; at the same time, the position sensor 26 detects the position of the piston 31 before and after the movement, so as to determine whether the stroke of the piston 31 meets the design requirements; S3, according to the judgment result of S2, determine the faulty clutch 28; transport the faulty clutch 28 and the clutch repair mechanism 13 along the guide rail 12 to the repair area; S4. Adjust the height of the transverse support plate 21 to fix the clutch 28, turn on the brake switch to fix the universal wheel 24, disassemble the clutch 28 for inspection and repair, blow air to the clutch 28 again after repair, detect the pressure value and the stroke of the piston 31 through the air pressure sensor 25 and the position sensor 26 until they meet the design requirements, and determine that the clutch 28 has been repaired; S5. The repaired clutch 28 and the clutch repair mechanism 13 are sent back to the gearbox disassembly unit 3 along the guide rail 12 and reassembled in the gearbox 27 to complete the repair of the gearbox 27.

[0034] Reference Example 2: If the repair areas of the gearbox 27 and the clutch 28 are in different positions, the guide rail 12 can be led to the ground, and the clutch 28 and the clutch repair mechanism 13 can be transported to the corresponding clutch 28 repair area through the handrail 23 and the universal wheel 24. After the repair is completed, they are sent back to the gearbox repair mechanism 2 and reassembled in the gearbox 27 to complete the repair of the gearbox 27. In addition, the transfer mechanism 16 can be transported between different gearbox repair mechanisms 2 with the help of another slope guide rail, further improving the utilization rate and flexibility of the combined repair device 1.

[0035] In summary, the present invention can simultaneously support the repair of the gearbox 27 and the clutch 28 in the box through the gearbox repair mechanism 2 and the clutch repair mechanism 13, realize the modular process of repairing the gearbox 27 and the clutch 28 and assembling, testing and transporting the clutch 28 after repair, improve the repair efficiency of the gearbox 27 and the clutch 28 and reduce the tediousness of repair, and avoid oil contamination during the repair process. Secondly, the pressure and stroke measurement of the clutch 28 before and after repair are carried out quickly and accurately through the measuring unit 15, and the clutch 28 is adjusted and repaired in real time according to the results. Finally, the structure of the device is compact and simple, and the repair support of the gearbox 27 and the clutch 28 can be achieved without the help of other complex tooling. It can be flexibly transported through the transport mechanism 16, which reduces the labor intensity of workers in the process of transporting parts and reduces other physically demanding processes.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A combined rework device, characterized in that: Including gearbox repair mechanism and clutch repair mechanism; A guide rail is provided on the table of the gearbox repair mechanism, and the clutch repair mechanism is slidably connected to the gearbox repair mechanism via the guide rail; The gearbox repair mechanism comprises a gearbox disassembly section and an oil storage section; The clutch repair mechanism includes a clutch assembly part and a measuring part; The gearbox disassembly part is installed above the oil storage part, and is used to guide the overflowed oil into the oil storage part when the gearbox is disassembled; The measuring part is installed on one side of the clutch assembly part and is connected to the boosting device through an air pipe, so as to inflate the clutch on the clutch assembly part.

2. The combined repair device according to claim 1, characterized in that: The gearbox disassembling part is composed of two groups of disassembling supports which are symmetrically arranged, and each group of disassembling supports includes a supporting beam and a suspension frame installed on the supporting beam.

3. The combined repair device according to claim 1, characterized in that: The oil storage part comprises an oil guide plate installed at the bottom of the support beam, an oil storage tank arranged below the oil guide plate, a filter assembly installed in the oil storage tank, and a support leg installed at the bottom of the oil storage tank; The bottom of the oil storage tank is provided with an oil port and an oil drain switch; The oil storage tank is placed on the transfer mechanism through supporting legs.

4. The combined repair device according to claim 3, characterized in that: The oil guide plate is provided with a plurality of filter holes and lifting holes, wherein the plurality of filters are used for oil introduction and coarse filtering, and the lifting holes are used for lifting.

5. The combined repair device according to claim 3, characterized in that: The clutch assembly part comprises an assembly support placed on the transfer mechanism, a plurality of longitudinal support plates respectively installed in the assembly support, and a transverse support plate arranged between the longitudinal support plates; Among them, multiple longitudinal support plates are fixed along four directions of the assembly support, and rectangular grooves are formed between the multiple longitudinal support plates; the rectangular grooves are used to accommodate transverse support plates, and both ends of the transverse support plates are fixed to the assembly support by bolts.

6. The combined repair device according to claim 5, characterized in that: A plurality of screw holes of different heights are provided on both sides of the assembly support for adjusting the height of the transverse support plate.

7. The combined repair device according to claim 5, characterized in that: The transverse support plate is provided with a middle hole, and the top of the assembly support is provided with an assembly hole corresponding to the middle hole, the assembly hole is used for plugging with the clutch shaft, and the middle hole is used for fixing with the clutch shaft end.

8. The combined repair device according to claim 4, characterized in that: The measuring part includes a pipe clamp plate installed on one side of the longitudinal support plate and a plurality of sensors; The pipe clamp plate is provided with a fixing hole for plugging with the trachea; One end of the air pipe is connected to the supercharging device, and the other end is used to be plugged into the oil inlet of the clutch shaft end to inflate the clutch.

9. The combined repair device according to claim 8, characterized in that: The multiple sensors include an air pressure sensor and a position sensor, wherein the air pressure sensor is installed in the air pipe to monitor the real-time air pressure; The position sensor is installed above the clutch and is used to detect the position change of the clutch piston.

10. A combined rework method, characterized in that: The repair device according to claim 1, comprising: Step 1, fix the gearbox to the gearbox disassembly part, and disassemble the gearbox. During the disassembly process, the oil in the gearbox enters the oil tank of the oil storage part through the oil guide plate; Step 2: Take out the clutch inside the gearbox and place it on the clutch assembly part. Pressurize the clutch through the measuring part. The air pressure pushes the clutch piston to move axially. The piston pushes the clutch friction plate to press tightly. The engagement process of the clutch in actual working process is simulated, and the air pressure and clutch piston displacement are detected in real time. Step 3: judging whether the clutch pressure value meets the air tightness requirement and whether the piston stroke meets the design requirement according to the preset air pressure threshold and the comparison result of the detected air pressure, distance threshold and clutch piston displacement; Step 4: According to the clutch judgment result of step 3, the faulty clutch is obtained, the faulty clutch and the clutch repair mechanism are slid along the guide rail to the repair area, the clutch fixed on the clutch assembly part is disassembled and repaired, and the air pressure and displacement detection in step 2 are repeated again after the repair until the detected air pressure and clutch piston displacement meet the relevant thresholds, and the repaired normal clutch is obtained; Step 5: Send the repaired clutch and clutch repair mechanism along the guide rail to the gearbox repair mechanism for reassembly with the gearbox, and complete the gearbox repair after reassembly.

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