Multi-degree-of-freedom engine and gearbox combined maintenance platform

Abstract

The present invention provides a multi-degree-of-freedom engine transmission combined maintenance platform, which relates to the technical field of engine maintenance platforms. It includes a support, on one side of the support, first fixing blocks are symmetrically and fixedly connected. A first support plate is arranged between the symmetric first fixing blocks. In the middle of the upper side of the support, I-shaped guide rails are symmetrically arranged. A first sliding frame is slidably connected to the I-shaped guide rails. A first rotating bearing is fixedly connected to the upper side of the first sliding frame. The inner ring of the first rotating bearing is fixedly connected with a first fixing frame. The first support plate is provided with an engine support mechanism, and the first fixing frame is provided with a transmission support mechanism. The beneficial effects of the present invention are as follows: By controlling and adjusting this maintenance platform through an electro-hydraulic system to change the placement position of the engine, it is convenient for the staff to repair the parts on the engine, avoiding the frequent use of lifting devices during the repair process, eliminating the serious dependence on the lifting device during the repair process, and greatly reducing the safety risks brought by hoisting.

Description

Technical Field

[0001] The present invention relates to the technical field of engine maintenance platforms, and in particular, to a multi-degree-of-freedom combined maintenance platform for engine and gearbox. Background Art

[0002] Due to the aging and wear of components, it is necessary to periodically detect the power system of the vehicle to prevent power system failures during vehicle driving and serious safety accidents, thereby improving the safety of heavy vehicles. When detecting and maintaining the power system of the vehicle, a lifting device is used to lift out the engine and the gearbox separately and place them on the maintenance racks for separate maintenance.

[0003] For the maintenance of the existing heavy vehicle power system, especially the maintenance of the engine and the gearbox, the overall lifting and lowering of the system are usually achieved through a lifting device. During the maintenance process, multiple maintenance personnel are required to coordinate and cooperate, resulting in a large amount of manpower input. Moreover, the frequent use of the lifting device to cooperate with the transfer of the engine and gearbox casings poses certain safety risks and potential hazards during hoisting, which has a certain impact on maintenance personnel, maintenance tools, and maintenance equipment. Summary of the Invention

[0004] In order to overcome the existing technical problems, a multi-degree-of-freedom combined maintenance platform for engine and gearbox is provided.

[0005] The technical solution provided by the present invention is as follows: A multi-degree-of-freedom combined maintenance platform for engine and gearbox includes a support. Rectangular shells facilitating forklift transportation are symmetrically fixed to the lower side of the support. An electro-hydraulic system is fixed to one side of the support. First fixing blocks are symmetrically fixed to the other side of the support. A first support plate is arranged between the symmetric first fixing blocks. A first hydraulic push rod connected to the electro-hydraulic system is arranged between the first support plate and the support. I-shaped guide rails are symmetrically arranged in the middle of the upper side of the support. A first sliding frame is slidably connected to the I-shaped guide rails. The support is fixed with a second hydraulic push rod for driving the first sliding frame to move. The telescopic end of the second hydraulic push rod is fixed to the first sliding frame. The second hydraulic push rod is connected to the electro-hydraulic system. A first rotating bearing is fixed to the upper side of the first sliding frame. A first rotating oil cylinder for driving the first rotating bearing to rotate is fixed to the lower side of the first sliding frame. The output shaft of the first rotating oil cylinder is fixed to the inner ring of the first rotating bearing. A first fixing frame is fixed to the inner ring of the first rotating bearing. The first support plate is provided with an engine support mechanism for fixing the engine. The first fixing frame is provided with a gearbox support mechanism. Both the engine support mechanism and the gearbox support mechanism are connected to the electro-hydraulic system. The engine support mechanism and the gearbox support mechanism cooperate to fix the engine and the gearbox, and during the maintenance process, the swinging angle of the engine is changed according to the maintenance parts of the engine and the gearbox, and the usage times of the lifting device are reduced.

[0006] As a further preferred solution, guide columns are symmetrically fixedly connected to the side surface of the first support plate, and the guide columns are all slidably connected through the first fixing block and the support seat, enabling the first support plate to move smoothly upward.

[0007] As a further preferred solution, the engine support mechanism includes symmetrically arranged support seats, the support seats are fixedly connected to the upper side surface of the first support plate, an arc-shaped groove is arranged on the upper side surface of the support seat, and an arc-shaped slider is slidably connected in the arc-shaped groove. A first connecting plate is fixedly connected between the symmetric arc-shaped sliders. Third hydraulic push rods connected to the electro-hydraulic system are symmetrically arranged between the first connecting plate and the first support plate. The third hydraulic push rods are used to adjust the inclination angle of the first connecting plate. A second rotating bearing is arranged on the upper side surface of the first connecting plate. A second rotating oil cylinder connected to the electro-hydraulic system is fixedly connected to the lower side surface of the first connecting plate. The output shaft of the second rotating oil cylinder is fixedly connected to the inner ring of the second rotating bearing. The inner ring of the second rotating bearing is fixedly connected to a second connecting plate. A flipping and fixing assembly for flipping the engine is arranged on the upper side surface of the second connecting plate.

[0008] As a further preferred solution, two arc-shaped through holes are symmetrically arranged on the support seat, and a limit column is slidably connected in the arc-shaped through hole. One end of the limit column is fixedly connected to the first connecting plate, which is used to limit the swinging angle of the first connecting plate.

[0009] As a further preferred solution, the engine fixing assembly includes a support column, the support column is fixedly connected to the side of the second connecting plate away from the first fixing frame, the support column is rotatably connected to a support rotating shaft, one end of the support rotating shaft is fixedly connected to a fixing plate, a first driving motor connected to the electro-hydraulic system is fixedly connected to one side of the support column through a mounting seat. The output shaft of the first driving motor is in transmission with the support rotating shaft through a gear. Square through holes are symmetrically arranged on the fixing plate. A mounting plate for fixing the engine is slidably connected in the square through holes of the fixing plate. A first threaded rod is rotatably connected to one end of the mounting plates close to the support column. The thread directions on both sides of the first threaded rod are opposite, and a hexagonal fixing block matched with a hex wrench is fixedly connected to one end of the first threaded rod.

[0010] As a further preferred solution, the cross-section of the mounting plate is set to an I shape to improve the anti-bending ability of the mounting plate, and long strip through holes for installing engine mounting parts are arranged at equal intervals on the mounting plate to adapt to the fixing positions of different models of engines.

[0011] As a further preferred embodiment, the gearbox support mechanism includes a second sliding frame, the second sliding frame is slidably connected to the middle part of the first fixed frame, a fourth hydraulic push rod connected to the electric hydraulic system is fixedly connected to the top of the first fixed frame, the telescopic end of the fourth hydraulic push rod is fixedly connected to the second sliding frame, two groups of T-shaped guide rails are symmetrically slidably connected to the upper side of the first fixed frame, the two groups of T-shaped guide rails are staggered with each other, a third connecting plate is fixedly connected between the T-shaped guide rails of the same group, the third connecting plate is slidably connected to the second fixed frame through a sliding rod, a fifth hydraulic push rod connected to the electric hydraulic system is fixedly connected to the lower side of the third connecting plate, the telescopic end of the fifth hydraulic push rod passes through the adjacent third connecting plate and is fixedly connected to the second fixed frame, the lower side of the first fixed frame is symmetrically rotatably connected to the second threaded rod, the lower side of the first fixed frame is symmetrically fixedly connected to the second drive motor connected to the electric hydraulic system, the output shafts of the second drive motors are respectively fixedly connected to the adjacent second threaded rods, the second threaded rods are respectively threadedly connected to an adjacent group of T-shaped guide rails through threaded sleeves, and the second sliding frame and the second fixed frame are both provided with a gearbox fixing assembly for supporting the gearbox.

[0012] As a further preferred scheme, the gearbox fixing assembly includes a rotating sleeve, which is symmetrically rotatably connected to the second sliding frame and the second fixed frame, a U-shaped frame is fixedly connected between adjacent rotating sleeves, the middle part of the rotating sleeve is splined with the spline sleeve, the inner ends of adjacent spline sleeves are fixedly connected with a second fixed block for clamping the gearbox, one side of the second sliding frame and the second fixed frame are fixedly connected with a third drive motor connected to the electrical hydraulic system through a mounting seat, the output shaft of the third drive motor is transmitted to the adjacent rotating sleeve through a gear, the rotating sleeve is threadedly connected with a third threaded rod, the third threaded rod passes through the adjacent spline sleeve and is rotatably connected to the adjacent second fixed block, and the outer ends of adjacent third threaded rods are provided with rotating rods.

[0013] As a further preferred solution, the inner side surface of the second fixing block is configured as an inclined surface, and the inclined surface is provided with a friction plate for increasing friction.

[0014] As a further preferred scheme, it also includes an engine balancing mechanism for maintaining the engine level, the engine balancing mechanism is arranged on a support column, the support column is provided with a guide through hole, the engine balancing mechanism includes a third sliding frame, the third sliding frame is slidably connected to the guide through hole of the support column, the third sliding frame is symmetrically arranged to support the second support plate of the engine, and a sixth hydraulic push rod connected to the electrical hydraulic system is fixedly connected to one side of the support column, and the telescopic end of the sixth hydraulic push rod is fixedly connected to the third sliding frame.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. The distance between the two mounting plates is changed by the first threaded rod, and in cooperation with the long strip through holes on the two mounting plates, the two mounting plates are adapted to engines of different models.

[0017] 2. The cooperation among the first hydraulic push rod, the second rotating oil cylinder and the first driving motor is controlled by the electro-hydraulic system to change the placement position of the engine, which is convenient for the staff to repair the parts on the engine, avoids the frequent use of the lifting device during the repair process, eliminates the serious dependence on the lifting device during the repair process, and greatly reduces the safety risk brought by the hoisting.

[0018] 3. The three groups of second fixing blocks are used to drive the transmission housing away from each other respectively, avoiding the continuous use of the lifting device to transfer the lower housing during the repair process and reducing the safety risk during the hoisting process.

[0019] 4. The engine oil pan is slightly lifted upward by the two second support plates to keep the engine horizontal, avoiding the left side of the engine from tilting downward and the bolt holes of the engine and the transmission not being aligned, which may cause difficulties in assembling the engine and the transmission. Description of the Drawings

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0021] Figure 2 It is a partially sectional three-dimensional structure schematic diagram of the present invention.

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the engine support mechanism of the present invention.

[0023] Figure 4 It is a sectional three-dimensional structure schematic diagram of the present invention.

[0024] Figure 5 It is a partially side-view three-dimensional structure schematic diagram of the engine support mechanism of the present invention.

[0025] Figure 6 It is a partially three-dimensional structure schematic diagram of the engine support mechanism of the present invention.

[0026] Figure 7 It is a side-view three-dimensional structure schematic diagram of the transmission support mechanism of the present invention.

[0027] Figure 8 It is a partially sectional three-dimensional structure schematic diagram of the transmission support mechanism of the present invention.

[0028] Figure 9 It is a three-dimensional structure schematic diagram of the working state of the transmission support mechanism of the present invention.

[0029] Figure 10This is a partial bottom-up perspective structural schematic diagram of the transmission support mechanism of the present invention.

[0030] Figure 11 This is a three-dimensional structural schematic diagram of the transmission fixing assembly of the present invention.

[0031] Figure 12 This is a sectional three-dimensional structural schematic diagram of the transmission fixing assembly of the present invention.

[0032] Figure 13 This is a three-dimensional structural schematic diagram of the engine balance mechanism of the present invention.

[0033] Wherein: 101: support; 102: rectangular shell; 103: electro-hydraulic system; 104: first fixing block; 105: first support plate; 106: first hydraulic push rod; 107: I-shaped guide rail; 108: first sliding frame; 109: second hydraulic push rod; 110: first rotating bearing; 111: first rotating oil cylinder; 112: first fixing frame; 201: support seat; 202: arc-shaped slider; 203: first connecting plate; 204: limit post; 205: third hydraulic push rod; 206: second rotating bearing; 207: second rotating oil cylinder; 208: second connecting plate; 301: support column; 302: support rotating shaft; 303: fixing plate; 304: first driving motor; 305: mounting plate; 306: first threaded rod; 401: second sliding frame; 402: fourth hydraulic push rod; 403: T-shaped guide rail; 404: third connecting plate; 405: second fixing frame; 406: fifth hydraulic push rod; 407: second threaded rod; 4071: second driving motor; 408: rotating sleeve; 409: U-shaped frame; 410: spline sleeve; 411: second fixing block; 412: third driving motor; 413: third threaded rod; 501: third sliding frame; 502: second support plate; 503: sixth hydraulic push rod. Detailed implementation manners

[0034] To make the purposes, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] A multi-degree-of-freedom engine transmission combined maintenance platform, as Figures 1-12As shown in the figure, it includes a support 101. A rectangular shell 102 facilitating forklift transfer is symmetrically welded to the lower side of the support 101. An electro-hydraulic system 103 is bolted to one side of the support 101. On the other side of the support 101, first fixing blocks 104 are symmetrically welded. A first support plate 105 is arranged between the symmetric first fixing blocks 104. Guide columns are symmetrically welded to the side of the first support plate 105. The guide columns are all connected in a through-sliding manner to the first fixing blocks 104 and the support 101, enabling the first support plate 105 to move smoothly upward. A first hydraulic push rod 106 connected to the electro-hydraulic system 103 is bolted between the first support plate 105 and the support 101. In the middle of the upper side of the support 101, I-shaped guide rails 107 are symmetrically welded. A first sliding frame 108 is slidably connected to the I-shaped guide rails 107. The support 101 is bolted with a second hydraulic push rod 109 for driving the first sliding frame 108 to move. The telescopic end of the second hydraulic push rod 109 pushes the first sliding frame 108 to the left, so that the transmission on the first sliding frame 108 is far away from the engine, facilitating the staff to repair the engine and the transmission separately. The telescopic end of the second hydraulic push rod 109 is bolted to the first sliding frame 108. The second hydraulic push rod 109 is connected to the electro-hydraulic system 103. A first rotating bearing 110 is welded to the upper side of the first sliding frame 108. A first rotating oil cylinder 111 for driving the first rotating bearing 110 to rotate is bolted to the lower side of the first sliding frame 108. The output shaft of the first rotating oil cylinder 111 is bolted to the inner ring of the first rotating bearing 110. A first fixing frame 112 is welded to the inner ring of the first rotating bearing 110. The first support plate 105 is provided with an engine support mechanism for fixing the engine. The first fixing frame 112 is provided with a transmission support mechanism. Both the engine support mechanism and the transmission support mechanism are connected to the electro-hydraulic system 103. The engine support mechanism and the transmission support mechanism cooperate to fix the engine and the transmission, change the swing angle of the engine according to the repair parts of the engine and the transmission during the repair process, and reduce the number of times of using the hoisting device.

[0037] As Figures 3-6As shown in the figure, the engine support mechanism includes symmetrically arranged support seats 201. The support seats 201 are welded to the upper side of the first support plate 105. An arc-shaped groove is provided on the upper side of the support seat 201, and an arc-shaped slider 202 is slidably connected in the arc-shaped groove. A first connecting plate 203 is bolted between the symmetric arc-shaped sliders 202. Symmetrically bolted between the first connecting plate 203 and the first support plate 105 are third hydraulic push rods 205 connected to the electro-hydraulic system 103. The third hydraulic push rods 205 are used to adjust the tilt angle of the first connecting plate 203. The third hydraulic push rods 205 cause the first connecting plate 203 to rotate, realizing the forward and backward pitching of the engine, enabling the staff to perform maintenance on the engine from multiple angles. A second rotating bearing 206 is welded to the upper side of the first connecting plate 203. A second rotating oil cylinder 207 connected to the electro-hydraulic system 103 is bolted to the lower side of the first connecting plate 203. The output shaft of the second rotating oil cylinder 207 is bolted to the inner ring of the second rotating bearing 206. The inner ring of the second rotating bearing 206 is welded with a second connecting plate 208. A flipping and fixing assembly for flipping the engine is provided on the upper side of the second connecting plate 208.

[0038] As Figure 5 shown, the support seat 201 is symmetrically provided with two arc-shaped through holes, and a limiting column 204 is slidably connected in the arc-shaped through hole. One end of the limiting column 204 is welded to the first connecting plate 203, and the swinging angle of the first connecting plate 203 is limited by the limiting column 204 to prevent the first connecting plate 203 from hitting the first support plate 105 and being damaged due to the operator's mistake.

[0039] As Figure 3 and Figure 6As shown in the figure, the engine fixing assembly includes a support column 301. The support column 301 is bolted to the right part of the second connecting plate 208. A support rotating shaft 302 is rotatably connected to the support column 301. One end of the support rotating shaft 302 is key-connected to a fixing plate 303. A first driving motor 304 connected to the electro-hydraulic system 103 is bolted to the right side of the support column 301 through a mounting seat. The output shaft of the first driving motor 304 is transmitted to the support rotating shaft 302 through a gear. The fixing plate 303 is symmetrically provided with square through holes. A mounting plate 305 for fixing the engine is slidably connected in the square through holes of the fixing plate 303. The cross section of the mounting plate 305 is set as an I-shape to improve the anti-bending ability of the mounting plate 305. The support rotating shaft 302 drives the engine to rotate circumferentially through the fixing plate 303 and the two mounting plates 305, so that the parts located under the engine rotate to the upper side, which is convenient for the staff to repair, disassemble and assemble. And the mounting plate 305 is equidistantly provided with long strip through holes for installing engine mounting parts to adapt to the fixing positions of different models of engines. A first threaded rod 306 is rotatably connected between the mounting plates 305 near the right part of the support column 301. The thread directions on both sides of the first threaded rod 306 are opposite. The distance between the two mounting plates 305 is changed by using the first threaded rod 306, and in cooperation with the long strip through holes on the two mounting plates 305, the two mounting plates 305 are adapted to fix different models of engines. And a hexagonal fixing block matched with a hexagonal wrench is welded at the front end of the first threaded rod 306.

[0040] As Figures 7-12As shown in the figure, the transmission support mechanism includes a second sliding frame 401. The second sliding frame 401 is slidably connected to the middle of the first fixed frame 112. A fourth hydraulic push rod 402 connected to the electro-hydraulic system 103 is bolted to the inner top of the first fixed frame 112. The telescopic end of the fourth hydraulic push rod 402 is bolted to the second sliding frame 401. Two groups of T-shaped guide rails 403 are symmetrically and slidably connected to the upper side inside the first fixed frame 112. The cross-section between the two groups of T-shaped guide rails 403 is arranged in an I-shape to improve the anti-bending ability of the mounting plate (305). A third connecting plate 404 is welded between the T-shaped guide rails 403 in the same group. The third connecting plate 404 is slidably connected to a second fixed frame 405 through a sliding rod. A fifth hydraulic push rod 406 connected to the electro-hydraulic system 103 is bolted to the lower side of the third connecting plate 404. The telescopic end of the fifth hydraulic push rod 406 passes through the adjacent third connecting plate 404 and is bolted to the second fixed frame 405. Second threaded rods 407 are symmetrically rotatably connected to the lower side of the first fixed frame 112. The two second threaded rods 407 drive the adjacent T-shaped guide rails 403 to move away from each other through threaded sleeves, so that the auxiliary box and the front shell are both far away from the main box, which is convenient for the staff to repair the parts inside the transmission housing. At the same time, there is no need to frequently use a lifting device to transfer the transmission housing. Second drive motors 4071 connected to the electro-hydraulic system 103 are symmetrically bolted to the lower side of the first fixed frame 112. The output shafts of the second drive motors 4071 are respectively welded to the adjacent second threaded rods 407. The second threaded rods 407 are respectively threadedly connected to the adjacent group of T-shaped guide rails 403 through threaded sleeves. The second sliding frame 401 and the second fixed frame 405 are both provided with transmission fixing components for supporting the transmission.

[0041] As Figures 11-12As shown in the figure, the transmission fixing assembly includes a rotating sleeve 408. The rotating sleeve 408 is symmetrically and rotatably connected to the second sliding bracket 401 and the second fixing bracket 405. A U-shaped bracket 409 is welded between adjacent rotating sleeves 408. A spline sleeve 410 is spline-connected to the middle of the rotating sleeve 408. Second fixing blocks 411 for clamping the transmission are welded to the inner ends of adjacent spline sleeves 410. Adjacent second fixing blocks 411 move synchronously closer to the transmission, fixing the transmission in the middle of the adjacent second fixing blocks 411. The inner side surface of the second fixing block 411 is set as an inclined surface, and a friction plate for increasing friction is arranged on the inclined surface to increase the acting force between the second fixing block 411 and the transmission, preventing the transmission from falling during maintenance and causing harm to maintenance personnel. On the rear sides of the second sliding bracket 401 and the second fixing bracket 405, third driving motors 412 connected to the electro-hydraulic system 103 are bolt-connected through mounting seats. The output shafts of the third driving motors 412 are transmitted to the adjacent rotating sleeves 408 through gears. The rotating sleeve 408 is threadedly connected with a third threaded rod 413. The third threaded rod 413 passes through the adjacent spline sleeve 410 and is rotatably connected to the adjacent second fixing block 411. Rotating rods are arranged at the outer ends of adjacent third threaded rods 413. The rotating sleeve 408 drives the adjacent U-shaped bracket 409 and spline sleeve 410 to rotate, adjusting the rotation angle of the transmission housing to facilitate the maintenance of the internal parts of the transmission by the staff.

[0042] The staff controls the telescopic end of the second hydraulic push rod 109 through the electro-hydraulic system 103, making the first sliding bracket 108 and the parts thereon move closer to the first fixing block 104. The engine and transmission of the vehicle are hoisted between the two mounting plates 305 through the hoisting device, and the positions of the engine and transmission are adjusted. The staff rotates the first threaded rod 306 with an electric wrench. The threads in opposite directions on both sides of the first threaded rod 306 drive the two mounting plates 305 to slide closer to the engine along the square through holes of the fixing plate 303. The staff fixedly connects multiple engine mounting parts to the engine through bolts between the long through holes of the two mounting plates 305 and the engine fixing holes. The engine is fixed between the two mounting plates 305 through the mounting parts. The distance between the two mounting plates 305 is changed by using the first threaded rod 306, and the long through holes on the two mounting plates 305 are used to make the two mounting plates 305 adapt to engines of different models.

[0043] The staff controls the telescopic lengths of the telescopic ends of the fourth hydraulic push rod 402 and the two fifth hydraulic push rods 406 through the electro-hydraulic system 103, adjusts the heights of the second sliding frame 401 and the two second fixed frames 405, so that the second fixed block 411 is located in the middle of the gearbox. Then, the staff rotates the rotating rods at the outer ends of the third threaded rods 413 counterclockwise in sequence. The third threaded rods 413 drive the second fixed blocks 411 thereon to approach the gearbox respectively. The adjacent second fixed blocks 411 approach the gearbox synchronously, so that the gearbox is fixed in the middle of the adjacent second fixed blocks 411. The second fixed blocks 411 drive the spline sleeves 410 to slide along the adjacent rotating sleeves 408 respectively. The three groups of second fixed blocks 411 fix the front shell, the main shell and the auxiliary shell of the transmission respectively. The staff separates the lifting device from the engine and the gearbox, and then the staff removes the parts and bolts between the engine and the gearbox.

[0044] The staff controls the telescopic end of the first sliding frame 108 through the electro-hydraulic system 103, so that the first sliding frame 108 and the parts thereon slide leftward along the I-shaped guide rail 107. Then, the staff controls and rotates the first rotating oil cylinder 111 through the electro-hydraulic system 103. The output shaft of the first rotating oil cylinder 111 drives the inner ring of the first rotating bearing 110 and the first fixed frame 112 to rotate. The first fixed frame 112 drives the transmission thereon to rotate. The staff repairs the engine and the transmission.

[0045] During the simultaneous repair of the engine and the transmission, the staff controls the second rotating oil cylinder 207 through the electro-hydraulic system 103. The output shaft of the second rotating oil cylinder 207 drives the inner ring of the second rotating bearing 206 and the second connecting plate 208 to rotate. At the same time, the electro-hydraulic system 103 controls the telescopic end of the first hydraulic push rod 106. The telescopic end of the first hydraulic push rod 106 pushes the first support plate 105 and the parts thereon upward to change the placement angle of the engine, facilitating the staff to repair the engine parts. After the staff disassembles the upper parts of the engine, the staff controls the first driving motor 304 through the electro-hydraulic system 103. The output shaft of the first driving motor 304 drives the support rotating shaft 302 to rotate through gear transmission. The support rotating shaft 302 drives the engine to rotate circumferentially through the fixed plate 303 and the two mounting plates 305, so that the parts located at the lower part of the engine rotate to the upper side, facilitating the staff to repair, disassemble and assemble. When repairing the parts inside the engine that are difficult to repair, the staff controls the telescopic ends of the two third hydraulic push rods 205 through the electro-hydraulic system 103. The telescopic ends of the two third hydraulic push rods 205 cooperate to make the first connecting plate 203 drive the two arc-shaped sliders 202 to slide along the arc-shaped grooves of the adjacent support seats 201. The first connecting plate 203 drives the limit post 204 to slide in the arc-shaped through hole, and the limit post 204 is used to limit the swing angle of the first connecting plate 203, preventing the staff from accidentally operating and causing the first connecting plate 203 to hit the first support plate 105 and cause damage. When the first connecting plate 203 swings, the engine pitches forward and backward, enabling the staff to repair the engine from multiple angles. The staff controls the first hydraulic push rod 106, the second rotating oil cylinder 207 and the first driving motor 304 through the electro-hydraulic system 103 to cooperate to change the placement position of the engine, facilitating the staff to repair the parts on the engine, eliminating the serious dependence on the hoisting device during the repair process, and greatly reducing the safety risks brought by hoisting.

[0046] When the staff repairs the gearbox, the staff first removes the connecting bolts between the gearboxes. The staff starts two second driving motors 4071 through the electro-hydraulic system 103. The output shafts of the two second driving motors 4071 drive the second threaded rods 407 fixedly connected thereto to rotate. The two second threaded rods 407 drive the adjacent T-shaped guide rails 403 to move away from each other through the threaded sleeves, so that the auxiliary box and the front shell are both away from the main box. The staff repairs the parts in the three boxes respectively. When it is necessary to adjust the angle of the gearbox housing, the staff controls the third driving motor 412 through the electro-hydraulic system 103. The output shaft of the third driving motor 412 drives the second threaded rods 407 fixedly connected thereto to rotate. The two second threaded rods 407 drive two groups of T-shaped guide rails 403 to move away from each other through the threaded sleeves respectively, so that the housings of the gearbox are away from each other. When it is necessary to rotate the housing of the gearbox, the staff controls the third driving motor 412 through the electro-hydraulic system 103. The output shaft of the third driving motor 412 drives the adjacent rotating sleeve 408 to rotate through gear transmission. The rotating sleeve 408 drives the adjacent U-shaped frame 409 and spline sleeve 410 to rotate, adjusting the rotation angle of the gearbox housing, so that it is convenient for the staff to repair the internal parts of the gearbox. The three groups of second fixing blocks 411 are used to drive the gearbox housing away from each other respectively, avoiding continuously using a hoisting device to transfer the disassembled housing during the repair process and reducing the safety risk during the hoisting process.

[0047] After the repair of the engine and the gearbox is completed, the staff completely reset and install the parts on the engine and the gearbox. The staff makes the gearbox and the engine reset through the electro-hydraulic system 103. The staff reconnects the engine and the gearbox with bolts. The staff uses a hoisting device to fix the engine and the gearbox. Subsequently, the fixing of the engine and the gearbox by this repair platform is released, and the hoisting device is used to transfer the engine and the gearbox to a designated position. The staff makes all components reset through the electro-hydraulic system 103 and waits for the next use.

[0048] Embodiment 2

[0049] On the basis of Embodiment 1, as Figure 13As shown, it further includes an engine balance mechanism for keeping the engine horizontal. The engine balance mechanism is arranged on the support column 301. The support column 301 is provided with a guiding through hole. The engine balance mechanism includes a third sliding frame 501 which is slidably connected in the guiding through hole of the support column 301. The third sliding frame 501 is symmetrically fixedly connected with second support plates 502 for lifting the engine. The two second support plates 502 slightly lift the engine bottom shell upward to keep the engine horizontal, avoid the left part of the engine tilting downward, and prevent the bolt holes of the engine and the transmission from being misaligned, which may cause difficulties in assembling the engine and the transmission. A sixth hydraulic push rod 503 connected to the electro-hydraulic system 103 is bolted to the right side of the support column 301. The telescopic end of the sixth hydraulic push rod 503 is bolted to the third sliding frame 501.

[0050] When assembling the engine and the transmission, the staff controls the telescopic end of the sixth hydraulic push rod 503 through the electro-hydraulic system 103 to drive the third sliding frame 501 and the second support plates 502 to move upward. The two second support plates 502 slightly lift the engine bottom shell upward to keep the engine horizontal, avoid the left part of the engine tilting downward, and prevent the bolt holes of the engine and the transmission from being misaligned, which may cause difficulties in assembling the engine and the transmission. After the engine and the transmission are assembled, the third sliding frame 501 and the second support plates 502 are reset.

[0051] After considering the specification and the practice disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

Claims

1. A multi-degree-of-freedom engine transmission combined maintenance platform, characterized in that, it includes a support (101), a rectangular shell (102) facilitating forklift transportation is symmetrically fixedly connected to the lower side surface of the support (101), an electro-hydraulic system (103) is fixedly connected to one side of the support (101), first fixing blocks (104) are symmetrically fixedly connected to the other side of the support (101), a first support plate (105) is arranged between the symmetric first fixing blocks (104), a first hydraulic push rod (106) connected to the electro-hydraulic system (103) is arranged between the first support plate (105) and the support (101), I-shaped guide rails (107) are symmetrically arranged in the middle of the upper side surface of the support (101), a first sliding frame (108) is slidably connected to the I-shaped guide rails (107), the support (101) is fixedly connected with a second hydraulic push rod (109) for driving the first sliding frame (108) to move, the telescopic end of the second hydraulic push rod (109) is fixedly connected to the first sliding frame (108), the second hydraulic push rod (109) is connected to the electro-hydraulic system (103), a first rotating bearing (110) is fixedly connected to the upper side surface of the first sliding frame (108), a first rotating oil cylinder (111) for driving the first rotating bearing (110) to rotate is fixedly connected to the lower side surface of the first sliding frame (108), the output shaft of the first rotating oil cylinder (111) is fixedly connected to the inner ring of the first rotating bearing (110), a first fixing frame (112) is fixedly connected to the inner ring of the first rotating bearing (110), an engine support mechanism for fixing the engine is arranged on the first support plate (105), a transmission support mechanism is arranged on the first fixing frame (112), both the engine support mechanism and the transmission support mechanism are connected to the electro-hydraulic system (103), the engine support mechanism and the transmission support mechanism cooperate to fix the engine and the transmission, and during the maintenance process, the swing angle of the engine is changed according to the maintenance parts of the engine and the transmission, and the number of times of using the lifting device is reduced; The engine support mechanism includes symmetrically arranged support seats (201). The support seats (201) are fixedly connected to the upper side surface of the first support plate (105). An arc-shaped groove is provided on the upper side surface of the support seats (201), and an arc-shaped slider (202) is slidably connected in the arc-shaped groove. A first connecting plate (203) is fixedly connected between the symmetric arc-shaped sliders (202). Symmetrically arranged third hydraulic push rods (205) connected to the electro-hydraulic system (103) are provided between the first connecting plate (203) and the first support plate (105). The third hydraulic push rods (205) are used to adjust the inclination angle of the first connecting plate (203). A second rotating bearing (206) is provided on the upper side surface of the first connecting plate (203). A second rotating oil cylinder (207) connected to the electro-hydraulic system (103) is fixedly connected to the lower side surface of the first connecting plate (203). The output shaft of the second rotating oil cylinder (207) is fixedly connected to the inner ring of the second rotating bearing (206). A second connecting plate (208) is fixedly connected to the inner ring of the second rotating bearing (206). A flipping and fixing assembly for flipping the engine is provided on the upper side surface of the second connecting plate (208).

2. A multi-degree-of-freedom engine and transmission combined maintenance platform according to claim 1, wherein, Guide columns are symmetrically and fixedly connected to the side surface of the first support plate (105). The guide columns are all slidably connected through the first fixing block (104) and the support (101) in a penetrating manner, so that the first support plate (105) moves smoothly upward.

3. A multi-degree-of-freedom engine and transmission combined maintenance platform according to claim 1, wherein, The support seats (201) are symmetrically provided with two arc-shaped through holes, and a limit post (204) is slidably connected in the arc-shaped through holes. One end of the limit post (204) is fixedly connected to the first connecting plate (203), and is used for limiting the swinging angle of the first connecting plate (203).

4. A multi-degree-of-freedom engine and transmission combined maintenance platform according to claim 3, wherein, The engine fixing assembly includes a support column (301). The support column (301) is fixedly connected to the side of the second connecting plate (208) away from the first fixing frame (112). A support rotating shaft (302) is rotatably connected to the support column (301). One end of the support rotating shaft (302) is fixedly connected with a fixing plate (303). A first driving motor (304) connected to the electro-hydraulic system (103) is fixedly connected to one side of the support column (301) through a mounting seat. The output shaft of the first driving motor (304) is transmitted to the support rotating shaft (302) through a gear. Square through holes are symmetrically provided on the fixing plate (303). A mounting plate (305) for fixing the engine is slidably connected in the square through holes of the fixing plate (303). A first threaded rod (306) is rotatably connected between the mounting plates (305) near one end of the support column (301). The thread directions on both sides of the first threaded rod (306) are opposite, and a hexagonal fixing block for cooperating with a hexagonal wrench is fixedly connected to one end of the first threaded rod (306).

5. A multi-degree-of-freedom engine and transmission combined maintenance platform according to claim 4, It is characterized in that The cross-section of the mounting plate (305) is set in an I shape to improve the anti-bending ability of the mounting plate (305), and the mounting plate (305) is provided with long strip through holes at equal intervals for mounting engine mounting parts to adapt to the fixed positions of different models of engines.

6. A multi-degree-of-freedom engine gearbox combined maintenance platform according to claim 1 It is characterized in that The gearbox support mechanism includes a second sliding frame (401). The second sliding frame (401) is slidably connected to the middle of the first fixed frame (112). A fourth hydraulic push rod (402) connected to the electro-hydraulic system (103) is fixedly connected to the inner top of the first fixed frame (112). The telescopic end of the fourth hydraulic push rod (402) is fixedly connected to the second sliding frame (401). Two groups of T-shaped guide rails (403) are symmetrically slidably connected to the upper side inside the first fixed frame (112). The two groups of T-shaped guide rails (403) are offset from each other. A third connecting plate (404) is fixedly connected between the T-shaped guide rails (403) of the same group. The third connecting plate (404) is slidably connected to a second fixed frame (405) through a sliding rod. A fifth hydraulic push rod (406) connected to the electro-hydraulic system (103) is fixedly connected to the lower side of the third connecting plate (404). The telescopic end of the fifth hydraulic push rod (406) passes through the adjacent third connecting plate (404) and is fixedly connected to the second fixed frame (405). Second threaded rods (407) are symmetrically rotatably connected to the lower side of the first fixed frame (112). Second driving motors (4071) connected to the electro-hydraulic system (103) are symmetrically fixedly connected to the lower side of the first fixed frame (112). The output shafts of the second driving motors (4071) are respectively fixedly connected to the adjacent second threaded rods (407). The second threaded rods (407) are respectively threadedly connected to a group of adjacent T-shaped guide rails (403) through threaded sleeves. The second sliding frame (401) and the second fixed frame (405) are both provided with gearbox fixing components for supporting the gearbox.

7. A multi-degree-of-freedom engine gearbox combined maintenance platform according to claim 6 It is characterized in that The transmission fixing assembly includes a rotating sleeve (408). The rotating sleeve (408) is symmetrically and rotatably connected to the second sliding frame (401) and the second fixing frame (405). A U-shaped frame (409) is fixedly connected between adjacent rotating sleeves (408). A spline sleeve (410) is spline-connected to the middle of the rotating sleeve (408). The inner ends of adjacent spline sleeves (410) are fixedly connected with second fixing blocks (411) for clamping the transmission. On one side of the second sliding frame (401) and the second fixing frame (405), a third driving motor (412) connected to the electro-hydraulic system (103) is fixedly connected through a mounting seat. The output shaft of the third driving motor (412) is in transmission with the adjacent rotating sleeve (408) through a gear. The rotating sleeve (408) is threadedly connected with a third threaded rod (413). The third threaded rod (413) passes through the adjacent spline sleeve (410) and is rotatably connected with the adjacent second fixing block (411). Rotating rods are arranged at the outer ends of adjacent third threaded rods (413).

8. A multi-degree-of-freedom engine transmission combination maintenance platform according to claim 7, characterized in that, the inner side surface of the second fixing block (411) is set as an inclined surface, and a friction plate for increasing friction is arranged on the inclined surface.

9. A multi-degree-of-freedom engine transmission combination maintenance platform according to claim 6, characterized in that, it further includes an engine balance mechanism for keeping the engine horizontal. The engine balance mechanism is arranged on the support column (301). The support column (301) is provided with a guiding through hole. The engine balance mechanism includes a third sliding frame (501). The third sliding frame (501) is slidably connected in the guiding through hole of the support column (301). The third sliding frame (501) is symmetrically provided with second support plates (502) for lifting the engine. On one side of the support column (301), a sixth hydraulic push rod (503) connected to the electro-hydraulic system (103) is fixedly connected. The telescopic end of the sixth hydraulic push rod (503) is fixedly connected with the third sliding frame (501).

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