Engine dismounting and mounting device for electric wheel dump truck

Abstract

The utility model relates to the technical field of engineering machinery, in particular to an engine dismounting device for an electric wheel dumper, which comprises a dismounting frame, the inner end of the dismounting frame is inserted into a middle mounting space of a lower ring beam, a plurality of adjusting support parts are arranged at the bottom of the inner end of the dismounting frame at intervals, and the bottom ends of the adjusting support parts are fixedly mounted on the inner wall of the bottom of the lower ring beam respectively. An auxiliary frame is arranged above the dismounting frame, movable abutting assemblies are arranged on the two sides of the auxiliary frame respectively, the two movable abutting assemblies movably abut against the corresponding positions of the dismounting frame respectively, fixed connecting pieces are arranged on the two sides of the auxiliary frame respectively, and the bottom ends of the fixed connecting pieces are fixedly installed on the inner wall of the bottom of the lower ring beam respectively. And the engine is fixedly mounted at the top of the auxiliary frame in a working state. The engine assembling and disassembling frame has the advantages that the auxiliary frame flexibly and smoothly slides on the top of the assembling and disassembling frame, so that the working efficiency of engine assembling and disassembling is improved; and through threaded fit of the threaded sleeve and the threaded column, the height of the disassembling and assembling frame is flexibly adjusted according to the engine installation requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an engine disassembly and assembly device for an electric wheel dump truck. Background Art

[0002] Electric wheel dump trucks are a type of non-road mining transport vehicle, widely used in surface stripping and ore transportation in various gravel mines, metal mines, and coal mines. The vehicle includes main components such as the frame, cargo box, rear axle, engine, and accessories such as stone breaking device and escalator. The frame is composed of left and right longitudinal beams and many cross beams to bear various loads, and the engine is one of the core components of the vehicle, which requires regular maintenance and repair.

[0003] For example, in the patent document with patent publication number CN218892423U, an off-road dump truck powertrain suspension system is disclosed, which is connected to the engine and the transmission, one end of the engine is connected to one end of the transmission, and includes a first suspension system, which is arranged on both sides of an end of the engine away from the transmission; a second suspension system, which is arranged on both sides of an end of the engine close to the transmission, and on both sides of an end of the transmission away from the engine.

[0004] According to the existing technical literature, the system achieves fixed installation of the engine through brackets and shock absorbers. However, during the engine maintenance process, the heavy weight and large size of the engine make disassembly and assembly operations difficult. At the same time, manpower is required to move the engine, resulting in low work efficiency.

[0005] To this end, the utility model optimizes and improves the problem of inconvenient engine disassembly and assembly in the prior art, and hereby proposes a new disassembly and assembly device that can adapt to engines of various installation heights and can perform flexible and convenient disassembly and assembly operations on them, so as to better solve the problems in the prior art. Utility Model Content

[0006] The utility model is to solve one of the above-mentioned technical problems, and the technical scheme adopted is: an engine disassembly and assembly device for an electric wheel dump truck, comprising a horizontally arranged disassembly and assembly frame, the inner end of the disassembly and assembly frame is inserted into the middle installation space of the lower ring beam at the corresponding position of the vehicle, a plurality of adjustment support members are arranged at intervals at the bottom of the inner end of the disassembly and assembly frame, the bottom end of each of the adjustment support members is respectively fixedly installed at the corresponding position of the inner wall of the bottom of the lower ring beam, a sub-frame is arranged above the disassembly and assembly frame along its length direction, active pressing assemblies are respectively arranged on the connecting rods on both sides of the sub-frame, the two active pressing assemblies are respectively movably pressed at the corresponding positions on both sides of the disassembly and assembly frame, fixed connecting members are respectively arranged on the inner ends of the connecting rods on both sides of the sub-frame, the bottom ends of each of the fixed connecting members are respectively fixedly installed at the corresponding position of the inner wall of the bottom of the lower ring beam, and the engine is fixedly installed on the top of the sub-frame in the working state.

[0007] In any of the above schemes, it is preferred that the adjustment support member includes a vertically arranged threaded sleeve, an internal thread is arranged on the circumferential inner wall of the threaded sleeve, threaded columns are threadedly connected in the inner cavities at the upper and lower ends of the threaded sleeve respectively, the top of the upper threaded column is fixedly connected to the corresponding position of the bottom of the inner end of the disassembly and assembly frame, and the bottom of the lower threaded column is fixedly connected to the corresponding position of the inner wall of the bottom of the lower ring beam.

[0008] In any of the above schemes, it is preferred that the movable pressing assembly includes a plurality of movable wheels arranged at intervals along the length direction of the connecting rod of the sub-frame, each of the movable wheels is fixedly mounted on the inner surface of the connecting rod of the sub-frame, and the rolling surface of each movable wheel is movably pressed against the corresponding position on the side of the disassembly and assembly frame.

[0009] In any of the above schemes, preferably, the movable wheel includes a connecting plate, the outer plate surface of the connecting plate is fixedly connected to the inner surface of the connecting rod of the sub-frame, the upper part of the inner plate surface of the connecting plate is fixedly connected to a mounting frame, a sliding wheel is movably installed in the horizontal direction through a central rotating rod in the mounting space inside the mounting frame, two mounting plates are fixedly connected at intervals in the lower part of the inner plate surface of the connecting plate, and a limiting wheel is movably installed in the vertical direction through a central rotating rod in the space between the two mounting plates, and in a working state, the rolling surface of the sliding wheel movably presses against the top surface of the side portion of the disassembly and assembly frame, and the rolling surface of the limiting wheel movably presses against the vertical outer wall of the side portion of the disassembly and assembly frame.

[0010] In any of the above schemes, it is preferred that the fixed connecting member includes a fixed plate with a cross-section in the shape of an angle steel, the vertical plate surface of the fixed plate is fixedly connected to the outer surface of the inner end of the connecting rod of the sub-frame, and a plurality of shock-absorbing blocks are fixedly installed at intervals on the bottom of the horizontal plate surface of the fixed plate, the bottom of each of the shock-absorbing blocks is fixedly installed on the top of a fixed seat, and the bottom of the fixed seat is fixedly installed at a corresponding position on the bottom inner wall of the lower ring beam.

[0011] In any of the above schemes, it is preferred that the outer end of the disassembly and assembly frame extends into the space between the two longitudinal beams at the corresponding position of the vehicle, and two limit plates are fixedly connected to the outer ends of the two side portions of the disassembly and assembly frame at intervals, and also includes a front circular tube, and the two end portions of the front circular tube are respectively fixedly connected to the corresponding positions of the two longitudinal beams, and the circumferential outer surfaces of the two ends of the front circular tube are respectively clamped in the space between the two limit plates on the corresponding sides in the working state.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model movably arranges the sub-frame on the top of the disassembly and assembly frame so that the sub-frame can slide and shift along the length direction of the disassembly and assembly frame, and then the dump truck engine can be flexibly pulled out or pushed into the engine installation position on the frame, so that manual handling of the engine can be avoided when the engine is repaired and maintained, thereby improving work efficiency.

[0014] 2. The utility model arranges sliding wheels on the sub-frame, and presses the rolling surface of each sliding wheel against the top surface of the corresponding side of the disassembly and assembly frame, so that the rolling of each sliding wheel drives the sub-frame to move more smoothly along the disassembly and assembly frame, avoiding the friction between the two to cause a large obstacle to the movement of the sub-frame.

[0015] 3. The utility model sets limiting wheels on the sub-frame, and presses the rolling surface of each limiting wheel against the vertical outer wall of the corresponding side of the disassembling frame, so as to limit the sub-frame laterally through the pressure of each limiting wheel, thereby ensuring that it can stably move along the length direction of the disassembling frame. At the same time, the friction between the sub-frame and the disassembling frame is further reduced by the rolling of each limiting wheel, thereby ensuring the smooth movement of the sub-frame.

[0016] 4. Due to the large weight of the engine, the shock absorber will gradually compress and deform after long-term use, which will cause the subframe to gradually sink and cause installation deviation when the engine is installed. Therefore, the utility model fixes the inner end of the disassembly frame with the lower ring beam through the threaded connection of the threaded sleeve and the two threaded columns. In this way, the height of the disassembly frame can be flexibly adjusted under the threaded cooperation of the threaded sleeve and the threaded column, thereby compensating for this installation deviation and allowing the device to be used normally. At the same time, by adjusting the height, the utility model can also adapt to the installation requirements of engines of different heights, thereby greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a schematic diagram of the overall structure of the disassembly and assembly device of the utility model.

[0019] Figure 2 It is a schematic diagram of the connection structure of the disassembly and assembly frame of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the adjusting support member of the utility model.

[0021] Figure 4 It is a schematic diagram of the connection structure of the auxiliary frame of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the movable wheel of the utility model.

[0023] In the figure, 1. disassembly and assembly frame; 2. adjustment support; 3. movable wheel; 4. subframe; 5. limit plate; 6. front round tube; 7. longitudinal beam; 8. shock absorber block; 9. lower ring beam; 10. fixed plate; 11. fixed seat; 21. threaded column; 22. threaded sleeve; 31. sliding wheel; 32. limit wheel; 33. connecting plate; 34. installation frame; 35. installation plate. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 5 as shown in .

[0025] An engine disassembly and assembly device for an electric wheel dump truck comprises a horizontally arranged disassembly and assembly frame 1, the inner end of the disassembly and assembly frame 1 is inserted into the middle installation space of the lower ring beam 9 at the corresponding position of the vehicle, a plurality of adjustment support members 2 are arranged at intervals at the bottom of the inner end of the disassembly and assembly frame 1, the bottom end of each of the adjustment support members 2 is respectively fixedly installed at the corresponding position of the bottom inner wall of the lower ring beam 9, a sub-frame 4 is arranged above the disassembly and assembly frame 1 along its length direction, active pressing assemblies are respectively arranged on the connecting rods on both sides of the sub-frame 4, two active pressing assemblies are respectively movably pressed at the corresponding positions on both sides of the disassembly and assembly frame 1, fixed connecting members are respectively arranged on the inner ends of the connecting rods on both sides of the sub-frame 4, the bottom ends of each of the fixed connecting members are respectively fixedly installed at the corresponding positions of the bottom inner wall of the lower ring beam 9, and the engine is fixedly installed on the top of the sub-frame 4 in the working state.

[0026] The disassembly and assembly frame 1 includes two parallel connecting frames, which are fixedly connected by a plurality of reinforcing ribs, and at the same time, the bottom of the same side ends of the two connecting frames are fixedly installed with adjustment support members 2. The end of the disassembly and assembly frame 1 provided with the adjustment support member 2 is inserted into the lower ring beam 9 of the dump truck, and at the same time, the corresponding end of the disassembly and assembly frame 1 is fixedly installed at the bottom position of the inner wall of the lower ring beam 9 by adjusting the support member 2, so as to realize the fixed installation of the disassembly and assembly frame 1. The sub-frame 4 is also a frame structure, with connecting rods on both sides, and a triangular connecting plate is integrally formed on the connecting rod. The dump truck engine is fixedly connected to the triangular connecting plate by threaded connection, so that the engine is fixedly installed on the connecting rod of the sub-frame 4. Active pressing assemblies are respectively provided on the connecting rods on both sides of the sub-frame 4. In the working state, the active pressing assemblies on both sides are pressed against the corresponding connecting frames of the disassembly and assembly frame 1, and through the active pressing assemblies, the sub-frame 4 can slide horizontally on the top of the disassembly and assembly frame 1. Meanwhile, fixed connectors are respectively provided on the inner ends of the connecting rods on both sides of the sub-frame 4. By fixing the fixed connectors on the inner wall of the bottom of the lower ring beam 9, the sub-frame 4 is fixed, and then the engine is fixed.

[0027] When the engine needs to be inspected and maintained, the operator first disconnects the fixed connection between the fixed connection piece and the corresponding position of the sub-frame 4, so that the sub-frame 4 can slide horizontally on the top of the disassembly frame 1, and further drive the dump truck engine to move out of the lower ring beam 9, so that the operator can disassemble the engine. After the maintenance work is completed, the engine is reinstalled on the sub-frame 4, and then the sub-frame 4 is pushed back to the original position under the action of the movable pressing component, and fixed by the fixed connection piece.

[0028] In any of the above schemes, it is preferred that the adjustment support member includes a vertically arranged threaded sleeve 22, an internal thread is arranged on the circumferential inner wall of the threaded sleeve 22, and threaded columns 21 are respectively threadedly connected in the inner cavities at the upper and lower ends of the threaded sleeve 22, the top of the upper threaded column 21 is fixedly connected to the corresponding position of the bottom of the inner end of the disassembly and assembly frame 1, and the bottom of the lower threaded column 21 is fixedly connected to the corresponding position of the bottom inner wall of the lower ring beam 9.

[0029] The inner surface of the threaded sleeve 22 is provided with an internal thread, and the outer surface of the threaded column 21 is provided with an external thread. The threaded sections of the upper and lower threaded columns 21 are screwed into the upper and lower ends of the threaded sleeve 22 respectively. At the same time, the top of the upper threaded column 21 is fixed on the disassembly frame 1, and the bottom of the lower threaded column 21 is fixed on the lower ring beam 9. Both threaded columns 21 cannot rotate. When the threaded sleeve 22 is rotated, under the action of the thread matching, the threaded sections of the two threaded columns 21 can be close to or away from each other in the threaded sleeve 22, so that the height of the disassembly frame 1 relative to the lower ring beam 9 can be adjusted up and down.

[0030] Since the weight of the engine is relatively large, the subframe 4 of the utility model will gradually sink after long-term use, so that the structure will have installation deviation when connected. By changing the height of the adjusting support 2, this installation deviation can be compensated so that the device can be used normally. At the same time, by adjusting the height of the adjusting support 2, the utility model can adapt to the installation requirements of engines of different heights, thereby greatly improving the applicability of the device.

[0031] In any of the above schemes, it is preferred that the movable pressing assembly includes a plurality of movable wheels 3 arranged at intervals along the length direction of the connecting rod of the sub-frame 4, each of the movable wheels 3 is fixedly mounted on the inner surface of the connecting rod of the sub-frame 4, and the rolling surface of each of the movable wheels 3 is movably pressed against the corresponding position on the side of the disassembly and assembly frame 1.

[0032] The rolling surface of each movable wheel 3 is pressed against the side of the disassembling and assembling frame 1. At the same time, through the rotation of the movable wheel 3, each movable wheel 3 can move along the side of the disassembling and assembling frame 1 in a rolling form, thereby driving the sub-frame 4 to move above the disassembling and assembling frame 1 along its length direction.

[0033] In any of the above schemes, it is preferred that the movable wheel 3 includes a connecting plate 33, the outer plate surface of the connecting plate 33 is fixedly connected to the inner surface of the connecting rod of the sub-frame 4, and a mounting frame 34 is fixedly connected to the upper part of the inner plate surface of the connecting plate 33. A sliding wheel 31 is movably installed in the horizontal direction through a central rotating rod in the mounting space inside the mounting frame 34, and two mounting plates 35 are fixedly connected at intervals at the lower part of the inner plate surface of the connecting plate 33. A limiting wheel 32 is movably installed in the vertical direction through a central rotating rod in the space between the two mounting plates 35. In the working state, the rolling surface of the sliding wheel 31 movably presses against the top surface of the side of the disassembly and assembly frame 1, and the rolling surface of the limiting wheel 32 movably presses against the vertical outer wall of the side of the disassembly and assembly frame 1.

[0034] A sliding wheel 31 is arranged in the horizontal direction in the installation space inside the installation frame 34, and the axial direction of the sliding wheel 31 is perpendicular to the length direction of the connecting frame on the side of the disassembling frame 1, and the end of the central rotating rod of the sliding wheel 31 is movably inserted into the rotating holes at the corresponding positions of the installation frame 34 and the connecting plate 33. Two installation plates 35 are fixed at intervals in the vertical direction at the lower part of the connecting plate 33, and a limiting wheel 32 is arranged in the vertical direction between the two installation plates 35, and the axial direction of the limiting wheel 32 is perpendicular to the length direction of the connecting frame on the side of the disassembling frame 1, and the end of the central rotating rod of the limiting wheel 32 is movably inserted into the corresponding rotating holes of the two installation plates 35.

[0035] The sliding wheel 31 rolls against the top surface of the side connecting frame of the disassembling frame 1, thereby playing a supporting role and facilitating the movement of the sub-frame 4 in a rolling manner. The limiting wheel 32 rolls against the outer wall of the side connecting frame of the disassembling frame 1, thereby limiting the movement of both sides of the sub-frame 4, ensuring that it can only move along the length direction of the disassembling frame 1, and rolling against it can reduce friction and avoid affecting the normal displacement of the sub-frame 4 along the length direction of the disassembling frame 1.

[0036] In any of the above schemes, it is preferred that the fixed connecting member includes a fixed plate 10 with a cross-section in the shape of an angle steel, the vertical plate surface of the fixed plate 10 is fixedly connected to the outer surface of the inner end of the connecting rod of the sub-frame 4, and a plurality of shock-absorbing blocks 8 are fixedly installed at intervals on the bottom of the horizontal plate surface of the fixed plate 10, the bottom of each of the shock-absorbing blocks 8 is fixedly installed on the top of a fixed seat 11, and the bottom of the fixed seat 11 is fixedly installed at a corresponding position of the bottom inner wall of the lower ring beam 9.

[0037] The vertical plate surface of the fixing plate 10 is fixedly mounted on the inner end of the connecting rod of the sub-frame 4 by bolts, and a plurality of shock absorbing blocks 8 are fixedly mounted on the bottom thereof to play a shock absorbing role. The shock absorbing blocks 8 are fixed on the fixing seat 11, and the bottom of the fixing seat 11 is fixedly mounted on the lower ring beam 9 by bolts.

[0038] When the engine needs to be repaired and maintained, the bolts connecting the fixing plate 10 and the sub-frame 4 are loosened to release the fixing of the sub-frame 4. Then, under the joint action of the sliding wheel 31 and the limiting wheel 32, the sub-frame 4 is pulled out, and then the engine fixed thereon is pulled out, so as to facilitate the disassembly and maintenance of the engine.

[0039] In any of the above schemes, it is preferred that the outer end of the disassembly and assembly frame 1 extends to the space between the two longitudinal beams 7 at the corresponding position of the vehicle, and two limit plates 5 are fixedly connected to the outer ends of the two side portions of the disassembly and assembly frame 1 at intervals, and also includes a front circular tube 6, the two end portions of the front circular tube 6 are respectively fixedly connected to the corresponding positions of the two longitudinal beams 7, and the circumferential outer surfaces of the two ends of the front circular tube 6 are respectively clamped in the space between the two limit plates 5 on the corresponding sides in the working state.

[0040] In order to ensure the firm connection of the disassembly and assembly frame 1, two limit plates 5 are respectively fixedly connected to the two sides of the outer end thereof, and a front round tube 6 is fixedly installed between the two longitudinal beams 7 at the corresponding positions, and the spacing between the two corresponding limit plates 5 on the same side is slightly larger than the diameter of the front round tube 6. In this way, the two limit plates 5 of the corresponding group can be respectively clamped on the corresponding ends of the front round tube 6, thereby further fixing the disassembly and assembly frame 1, ensuring the stability of the subframe 4, and finally realizing the firm installation of the engine.

[0041] Specific working principle:

[0042] First, loosen the bolts connecting the fixing plate 10 and the sub-frame 4 to release the fixing of the sub-frame 4, then pull the outer end of the sub-frame 4 so that it can slide out of the frame stably along the length direction of the disassembly frame 1 under the joint action of the sliding wheel 31 and the limiting wheel 32, and then pull out the engine fixed on the top of the sub-frame 4, so as to facilitate the disassembly and maintenance of the engine. After the maintenance is completed, reinstall the engine on the sub-frame 4 and push it back to the corresponding position above the disassembly frame 1.

[0043] With the threaded cooperation between the threaded sleeve 22 and the two threaded columns 21, rotating the threaded sleeve 22 can make the two threaded columns 21 approach or move away from each other in the threaded sleeve 22, so that the height of the disassembly and assembly frame 1 can be adjusted up and down relative to the lower ring beam 9, so as to flexibly adapt to the installation height of the engine.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0045] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An engine disassembly and assembly device for an electric wheel dump truck, characterized in that: The invention comprises a disassembly and assembly frame (1) arranged horizontally, wherein the inner end of the disassembly and assembly frame (1) is inserted into the middle installation space of the lower ring beam (9) at the corresponding position of the vehicle, and a plurality of adjustment support members (2) are arranged at intervals at the bottom of the inner end of the disassembly and assembly frame (1), and the bottom end of each of the adjustment support members (2) is respectively fixedly mounted at the corresponding position of the bottom inner wall of the lower ring beam (9), and a sub-frame (4) is arranged above the disassembly and assembly frame (1) along its length direction, and movable pressing assemblies are respectively arranged on the connecting rods on both sides of the sub-frame (4), and the two movable pressing assemblies are respectively movably pressed at the corresponding positions on both sides of the disassembly and assembly frame (1), and fixed connecting members are respectively arranged on the inner ends of the connecting rods on both sides of the sub-frame (4), and the bottom end of each of the fixed connecting members is respectively fixedly mounted at the corresponding position of the bottom inner wall of the lower ring beam (9), and the engine is fixedly mounted on the top of the sub-frame (4) in the working state.

2. The engine disassembly and assembly device for an electric wheel dump truck according to claim 1, characterized in that: The adjustment support member comprises a vertically arranged threaded sleeve (22), an internal thread is arranged on the circumferential inner wall of the threaded sleeve (22), threaded columns (21) are respectively threadedly connected in the inner cavities at the upper and lower ends of the threaded sleeve (22), the top of the upper threaded column (21) is fixedly connected to a corresponding position of the bottom of the inner end of the disassembly and assembly frame (1), and the bottom of the lower threaded column (21) is fixedly connected to a corresponding position of the bottom inner wall of the lower ring beam (9).

3. The engine disassembly and assembly device for an electric wheel dump truck according to claim 2, characterized in that: The movable pressing assembly comprises a plurality of movable wheels (3) arranged at intervals along the length direction of the connecting rod of the auxiliary frame (4), each of the movable wheels (3) being fixedly mounted on the inner surface of the connecting rod of the auxiliary frame (4), and the rolling surface of each movable wheel (3) being movable and pressed against a corresponding position on the side of the disassembly and assembly frame (1).

4. The engine disassembly and assembly device for an electric wheel dump truck according to claim 3, characterized in that: The movable wheel (3) comprises a connecting plate (33), the outer plate surface of the connecting plate (33) is fixedly connected to the inner surface of the connecting rod of the auxiliary frame (4), a mounting frame (34) is fixedly connected to the upper part of the inner plate surface of the connecting plate (33), a sliding wheel (31) is movably mounted in the horizontal direction via a central rotating rod in the mounting space inside the mounting frame (34), two mounting plates (35) are fixedly connected to the lower part of the inner plate surface of the connecting plate (33) at intervals, and a limiting wheel (32) is movably mounted in the vertical direction via a central rotating rod in the space between the two mounting plates (35), in the working state, the rolling surface of the sliding wheel (31) movably presses against the top surface of the side of the disassembling frame (1), and the rolling surface of the limiting wheel (32) movably presses against the vertical outer wall of the side of the disassembling frame (1).

5. The engine disassembly and assembly device for an electric wheel dump truck according to claim 4, characterized in that: The fixed connection member comprises a fixed plate (10) having a cross section in the shape of an angle steel, the vertical plate surface of the fixed plate (10) being fixedly connected to the outer surface of the inner end of the connecting rod of the sub-frame (4), and a plurality of shock absorbing blocks (8) being fixedly installed at intervals on the bottom of the horizontal plate surface of the fixed plate (10), the bottom of each of the shock absorbing blocks (8) being fixedly installed on the top of a fixed seat (11), and the bottom of the fixed seat (11) being fixedly installed at a corresponding position on the bottom inner wall of the lower ring beam (9).

6. The engine disassembly and assembly device for an electric wheel dump truck according to claim 5, characterized in that: The outer end of the disassembly and assembly frame (1) extends into the space between the two longitudinal beams (7) at the corresponding position of the vehicle, and two limit plates (5) are fixedly connected to the outer ends of the two side portions of the disassembly and assembly frame (1) at intervals. The disassembly and assembly frame also includes a front circular tube (6), and the two end portions of the front circular tube (6) are respectively fixedly connected to the corresponding positions of the two longitudinal beams (7). In the working state, the circumferential outer surfaces of the two ends of the front circular tube (6) are respectively clamped in the space between the two limit plates (5) on the corresponding sides.

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