Loader driven by double motors and maintenance method thereof

Abstract

The invention provides a loader driven by double motors and a maintenance method thereof, and relates to the technical field of engineering mechanical equipment, the loader comprises a frame, a cab and wheels arranged on the frame, a bucket arranged at the front end of the cab, a working device arranged at the right rear end of the frame, and a walking device arranged at the left side of the frame; the working device is arranged above the right side of the walking device; the working device comprises a working motor, a first fixing piece and a second fixing piece; the walking device comprises a walking motor, a third fixing piece, a fourth fixing piece, a fifth fixing piece and a sixth fixing piece. The first fixing piece is fixed with the rear end of the frame; the second fixing piece, the third fixing piece and the fourth fixing piece are fixed with the right lower end of the frame; and the fifth fixing piece and the sixth fixing piece are fixed with the left lower end of the frame. A pure electric driving system is adopted, and the working device and the walking device are driven by double motors to work, so that emission of carbon dioxide and other harmful gases is effectively reduced, and noise pollution is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery equipment, and in particular relates to a loader driven by dual motors and a maintenance method thereof. Background Art

[0002] The statements in this section merely provide background art related to the present disclosure and do not necessarily constitute prior art.

[0003] Fuel-powered loaders rely on burning fossil fuels for power, which will produce a large amount of carbon dioxide and other harmful gases during operation, exacerbating the greenhouse effect and air pollution. At the same time, due to the drastic load changes of the loader, the engine often operates in a high fuel consumption rate range at low loads, resulting in poor fuel consumption and emission performance of the whole machine, low fuel utilization, and increased operating costs.

[0004] To this end, some inventors have provided loaders that use hybrid power technology, such as the "loader with a dual-engine power system" provided by the authorization announcement number CN104385896B, which can not only improve the energy utilization of the loader, optimize the engine working range and energy recovery, but also achieve the technical effect of eliminating the hydraulic torque converter and improving the transmission efficiency. However, although the hybrid loader has reduced the dependence on traditional fuel to a certain extent and reduced the emission of harmful gases such as carbon dioxide, its technical complexity is relatively high, energy management is complex, and maintenance costs and difficulties are also increased accordingly.

[0005] At the same time, both fuel-powered and hybrid loaders have the problem of noise pollution. Therefore, in the long run, with the increasingly stringent environmental regulations and the continuous advancement of new energy technologies, the market competitiveness of traditional fuel-powered and hybrid loaders will gradually weaken. Developing loaders with more environmentally friendly, efficient and economical pure electric drive systems is an inevitable trend for future development. Summary of the invention

[0006] The present invention provides a loader driven by dual motors and a maintenance method thereof. The travel motor is installed at four points, and the structure can be kept stable by removing one leg during maintenance. The working motor is installed above the travel motor side, and a cantilever beam leg is used on one side to facilitate disassembly and maintenance. During maintenance, the first travel motor support is first removed, and then the working motor support and the other left installation point are removed, and the working motor can be removed. This structural design will not cause the working motor to be unable to be disassembled due to the overlap of the two motors above and below, thereby reducing the workload of dual motor maintenance.

[0007] The first aspect of the present invention provides a dual-motor driven loader, comprising a frame, a cab and wheels arranged on the frame, a bucket arranged at the front end of the cab, a working device arranged at the right rear end of the frame, and a traveling device arranged at the left side of the frame; the working device is arranged above the right side of the traveling device;

[0008] The working device comprises a working motor, a first fixing member and a second fixing member;

[0009] The walking device includes a walking motor, a third fixing member, a fourth fixing member, a fifth fixing member and a sixth fixing member;

[0010] The working motor is fixed to the rear end of the frame through the first fixing member; the working motor is fixed to the lower right end of the frame through the second fixing member, the travel motor is fixed to the lower right end of the frame through the third fixing member and the fourth fixing member, and the lower right end of the frame is arranged from back to front as the third fixing member, the second fixing member and the fourth fixing member; the travel motor is fixed to the lower right end of the frame through the fifth fixing member and the sixth fixing member, and the lower left end of the frame is arranged from back to front as the fifth fixing member and the sixth fixing member.

[0011] Furthermore, a working motor shaft for driving the bucket to work and the front wheel to steer is provided in the working motor; a traveling motor shaft for driving the rear wheel to move is provided in the traveling motor.

[0012] Furthermore, the travel motor is also fixed to a gearbox, and the gearbox is used to adjust the rotation speed of the travel motor shaft.

[0013] Furthermore, the first fixing member includes a first working motor mounting support and a working motor suspension beam arm support leg, the working motor is fixed to the working motor suspension beam arm support leg through the first working motor mounting support, and the working motor suspension beam arm support leg is installed on the rear cross beam of the frame through bolts.

[0014] Furthermore, the second fixing member includes a second working motor mounting support and a working motor mounting leg, the working motor is fixed to the working motor mounting leg through the second working motor mounting support, and the working motor mounting leg is installed at the middle end of the bottom right side of the frame through bolts.

[0015] Furthermore, the third fixing member includes a first walking motor mounting support and a first walking motor mounting leg. The right rear of the walking motor is fixed to the first walking motor mounting leg through the first walking motor mounting support. The first walking motor mounting leg is installed at the rear end of the right bottom of the frame by bolts.

[0016] Furthermore, the fourth fixing member includes a second walking motor mounting support and a second walking motor mounting leg. The right front of the walking motor is fixed to the second walking motor mounting leg through the second walking motor mounting support. The second walking motor mounting leg is installed at the front end of the bottom right side of the frame by bolts.

[0017] Furthermore, the fifth fixing member includes a third walking motor mounting support and a third walking motor mounting leg. The left rear of the walking motor is fixed to the third walking motor mounting leg through the third walking motor mounting support. The third walking motor mounting leg is installed at the rear end of the left bottom of the frame by bolts.

[0018] Furthermore, the sixth fixing member includes a fourth walking motor mounting support and a fourth walking motor mounting leg. The left front of the walking motor is fixed to the fourth walking motor mounting leg through the fourth walking motor mounting support. The fourth walking motor mounting leg is installed at the front end of the left bottom of the frame by bolts.

[0019] A second aspect of the present invention provides a method for installing a loader based on dual motor drive, comprising:

[0020] Remove the third fixing member, the second fixing member and the first fixing member in sequence, remove the working motor from under the loader, and complete the maintenance of the working motor;

[0021] Then disassemble the fourth fixing member, the fifth fixing member and the sixth fixing member in sequence, remove the travel motor from under the loader, and complete the maintenance of the travel motor.

[0022] Compared with the prior art, the dual-motor driven loader and maintenance method thereof provided by the present invention have the following beneficial effects:

[0023] 1. It adopts a pure electric drive system and uses dual motors to drive the working device and the walking device, which effectively reduces the emission of carbon dioxide and other harmful gases and reduces noise pollution.

[0024] 2. By optimizing the motor layout and structural design and adopting the rear-wheel drive mode, the loader's traction and climbing ability are improved, the loader can operate efficiently under various working conditions, and the performance of the whole machine is improved.

[0025] 3. The dual-motor drive system realizes power distribution through the gearbox, adjusts the output power of the motor according to different working conditions and requirements, and improves the efficiency of electric energy utilization.

[0026] 4. The maintenance method is simple. Through specific disassembly sequences and steps, the maintenance work is made more efficient, and the maintenance cost and difficulty are reduced. Through modular design, the motor or its related components can be quickly replaced, which greatly shortens the downtime of the loader. At the same time, the dual-motor driven loader of the present invention has a stable structure. Even after the first travel motor mounting bracket and the first travel motor mounting leg are disassembled, the stability of the travel motor structure can be maintained, ensuring the safety of the disassembly and maintenance operations of the working motor.

[0027] 5. The shock absorber absorbs and cushions the vibration and impact generated by the loader during operation and travel, thereby protecting the working motor and travel motor from damage and extending their service life. At the same time, the shock absorber reduces the force transmitted to the cab by mechanical vibration and improves the comfort of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0029] Figure 1 A schematic diagram of the structure of the dual motor provided by the present invention;

[0030] Figure 2 A schematic diagram of the dual motors provided by the present invention being installed in a vehicle frame;

[0031] Figure 3 A top view of the dual motors provided by the present invention installed in a vehicle frame;

[0032] Figure 4 A bottom view of the dual motors provided by the present invention installed in a vehicle frame;

[0033] Figure 5 This is a schematic diagram of the overall structure of a dual-motor driven loader provided by the present invention.

[0034] In the figure: 1. travel motor; 2. working motor; 3. gearbox; 4. first travel motor mounting support; 5. second travel motor mounting support; 6. third travel motor mounting support; 7. fourth travel motor mounting support; 8. first travel motor mounting support leg; 9. second travel motor mounting support leg; 10. third travel motor mounting support leg; 11. fourth travel motor mounting support leg; 12. second working motor mounting support; 13. working motor mounting support leg; 14. first working motor mounting support; 15. first shock absorber; 16. second shock absorber; 17. frame; 18. bucket; 19. cab; 20. wheels. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are exemplary and are intended to further illustrate the technical solutions provided by the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0037] For the convenience of description, if the words "upper", "lower", "left", "right", "front", and "rear" appear in the present invention, they only represent the same as those in the attached drawings. Figure 1 The up, down, left and right directions themselves are consistent and do not limit the structure. They 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 operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0038] Terminology explanation section: The terms "connect", "install", "fix", "set", etc. in the present invention are to be understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. As in this example, for ordinary technicians in this field, the specific meanings of the above terms in the present invention or invention can be understood according to the specific circumstances.

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Embodiment 1

[0041] See also Figures 1 to 5 The present invention provides a dual-motor driven loader, comprising a frame (17), a cab (19) and wheels (20) arranged on the frame, a bucket (18) arranged at the front end of the cab, a working device arranged at the right rear end of the frame, and a traveling device arranged at the left side of the frame; the working device is arranged above the right side of the traveling device;

[0042] The working device comprises a working motor (2), a first fixing member and a second fixing member;

[0043] The walking device comprises a walking motor (1), a third fixing member, a fourth fixing member, a fifth fixing member and a sixth fixing member;

[0044] The working motor and travel motor adopt permanent magnet synchronous motor, and the gearbox adopts single speed ratio fixed shaft gearbox.

[0045] The working motor is fixed to the rear end of the frame through the first fixing member; the working motor is fixed to the lower right end of the frame through the second fixing member, the travel motor is fixed to the lower right end of the frame through the third fixing member and the fourth fixing member, and the lower right end of the frame is arranged from back to front as the third fixing member, the second fixing member and the fourth fixing member; the travel motor is fixed to the lower left end of the frame through the fifth fixing member and the sixth fixing member, and the lower left end of the frame is arranged from front to back as the fifth fixing member and the sixth fixing member.

[0046] The working motor is provided with a working motor shaft for driving the bucket to work and the front wheel to steer; the traveling motor is provided with a traveling motor shaft for driving the rear wheel to move.

[0047] That is, the dual-motor driven loader provided by the present application has its own functions. Among them, the working motor concentrates its power on the digging of the bucket and the steering of the front wheels, thereby providing more precise controllability and stronger digging force in narrow spaces or complex terrains. The traveling motor provides traction during the operation of the loader through four-wheel drive, and can still maintain the stable movement of the loader on uneven ground or in an operating environment requiring high traction. Therefore, it is suitable for occasions where frequent digging and steering operations are required, such as urban construction sites, road construction, and garbage disposal. Due to its compact structure, it is also suitable for use indoors or in places with limited space, such as warehouses, inside workshops, etc. At the same time, by separating the functions of the working motor and the traveling motor, the complexity of the mechanical system can be reduced, maintenance costs can be reduced, and the reliability of the loader can be improved.

[0048] The first fixing member comprises a first working motor mounting support (14) and a working motor suspension beam arm support leg, the working motor is fixed to the working motor suspension beam arm support leg via the first working motor mounting support, and the working motor suspension beam arm support leg is mounted on the rear cross beam of the vehicle frame via bolts.

[0049] The second fixing member comprises a second working motor mounting support (12) and a working motor mounting leg (13), the working motor being fixed to the working motor mounting leg via the second working motor mounting support, and the working motor mounting leg being mounted at the middle end of the bottom right side of the vehicle frame via bolts.

[0050] The third fixing member comprises a first travel motor mounting support (4) and a first travel motor mounting leg (8), the right rear of the travel motor is fixed to the first travel motor mounting leg via the first travel motor mounting support, and the first travel motor mounting leg is mounted on the rear end of the right bottom of the frame via bolts.

[0051] The fourth fixing member comprises a second travel motor mounting support (5) and a second travel motor mounting leg (9), the right front of the travel motor is fixed to the second travel motor mounting leg via the second travel motor mounting support, and the second travel motor mounting leg is mounted on the front end of the right bottom of the frame via bolts.

[0052] The fifth fixing member comprises a third travel motor mounting support (6) and a third travel motor mounting leg (10), the left rear of the travel motor is fixed to the third travel motor mounting leg via the third travel motor mounting support, and the third travel motor mounting leg is mounted on the rear end of the left bottom of the frame via bolts.

[0053] The sixth fixing member comprises a fourth travel motor mounting support (7) and a fourth travel motor mounting leg (11), the left front of the travel motor is fixed to the fourth travel motor mounting leg via the fourth travel motor mounting support, and the fourth travel motor mounting leg is mounted on the front end of the left bottom of the frame via bolts.

[0054] In one embodiment, the travel motor (1) is also fixed to a gearbox (3), and the gearbox is used to adjust the rotation speed of the travel motor shaft.

[0055] The front end of the travel motor (1) is fixed to the gearbox (3) by bolts;

[0056] The right side of the gearbox (3) is fixed to the second travel motor mounting leg via a second travel motor mounting seat, and the second travel motor mounting leg is mounted on the right front end of the bottom of the frame via bolts;

[0057] The left side of the gearbox (3) is fixed to the fourth travel motor mounting leg (11) via a fourth travel motor mounting seat, and the fourth travel motor mounting leg (11) is mounted on the left front end of the bottom of the frame via bolts.

[0058] The dual-motor structural design enables the loader to travel more flexibly and stably during operation. By fixing the travel motors at the four corners of the frame, the force generated during travel can be effectively dispersed, reducing stress concentration on the frame, thereby improving the durability and reliability of the entire machine.

[0059] In one embodiment, a first shock absorber (15) is further arranged between the first travel motor mounting support (4) and the first travel motor mounting leg (8); a second shock absorber (16) is further arranged between the second travel motor mounting support (5) and the second travel motor mounting leg (9); a third shock absorber is further arranged between the third travel motor mounting support and the third travel motor mounting leg (10); a fourth shock absorber is further arranged between the fourth travel motor mounting support and the fourth travel motor mounting leg (11). A fifth shock absorber is further arranged between the first working motor mounting support (12) and the working motor mounting leg; and a sixth shock absorber is further arranged between the second working motor mounting support (14) and the working motor cantilever arm leg.

[0060] The present invention utilizes the shock absorber to absorb and buffer the vibration and impact force generated by the travel motor during operation. The shock absorber can effectively reduce the vibration caused by uneven road surface or improper operation from being transmitted to the frame, thereby protecting the structural components of the loader from damage and extending the service life.

[0061] Embodiment 2

[0062] The present invention provides a maintenance method for a loader driven by dual motors, comprising:

[0063] Remove the third fixing member, the second fixing member and the first fixing member in sequence, remove the working motor from under the loader, and complete the maintenance of the working motor;

[0064] Then disassemble the fourth fixing member, the fifth fixing member and the sixth fixing member in sequence, remove the travel motor from under the loader, and complete the maintenance of the travel motor.

[0065] In one embodiment, the present invention further provides a method for installing a loader driven by dual motors, comprising: performing the following steps from top to bottom on the loader:

[0066] Step 1: Install the travel motor frame connector and the working motor frame connector vertically on the frame and fix them with bolts;

[0067] Step 2: Install the travel motor connector vertically on the travel motor frame connector and fix it with bolts;

[0068] Step 3: Vertically install the working motor connecting piece on the working motor frame connecting piece and fix it with bolts;

[0069] Step 4: Install the travel motor (1) vertically on the travel motor connector and fix it with bolts;

[0070] Step 5: Vertically install the working motor (2) on the working motor connecting piece and fix it with bolts.

[0071] In a specific embodiment, first, the first travel motor mounting leg, the second travel motor mounting leg, the third travel motor mounting leg, the fourth travel motor mounting leg and the working motor mounting leg are mounted at the bottom of the frame and fixed by bolts. The first travel motor mounting leg and the working motor mounting leg are arranged side by side, the first travel motor mounting leg is at the rear, and the working motor mounting leg is at the front, and are arranged at the right end of the frame; the second travel motor mounting leg is arranged at the right front end of the frame; the third travel motor mounting leg is arranged at the left rear end of the frame; and the fourth travel motor mounting leg is arranged at the left front end of the frame.

[0072] Secondly, the first travel motor mounting support, the second travel motor mounting support, the third travel motor mounting support, the fourth travel motor mounting support, and the first working motor mounting support are fixed to the corresponding mounting legs in sequence by bolts.

[0073] Then, fix the gearbox on the third travel motor mounting support and the fourth travel motor mounting support by bolts; fix the working motor on the first working motor mounting support by bolts; and fix the travel motor on the first travel motor mounting support and the second travel motor mounting support by bolts.

[0074] Finally, the prescribed connection is made between the working motor and the second working motor mounting support, and between the second working motor mounting support and the working motor cantilever arm support leg.

[0075] The above installation method improves the compactness of the loader structure, reduces mechanical losses caused by vibration and impact, and prolongs the service life of the equipment. The installation process is simple and quick, which reduces maintenance costs and time and improves the operating efficiency of the loader.

[0076] In one embodiment, the present invention also provides a method for disassembling a working motor of a dual-motor structure of a small loader, comprising: performing the following steps from bottom to top from the bottom of the loader:

[0077] Step 1: Loosen the bolts between the first travel motor mounting leg (8) and the vehicle frame, loosen the bolts between the first travel motor mounting leg (8) and the first travel motor mounting support (4), and remove the first travel motor mounting leg (8);

[0078] Step 2: Loosen the bolts between the first travel motor mounting bracket (4) and the travel motor (1), and remove the first travel motor mounting bracket (4);

[0079] Step 3: Loosen the bolts between the working motor mounting leg and the vehicle frame, loosen the bolts between the working motor mounting leg and the first working motor mounting support (12), and remove the working motor mounting leg;

[0080] Step 4: Loosen the bolts between the first working motor mounting support (12) and the working motor, and remove the first working motor mounting support (12);

[0081] Step 5: Loosen the bolts between the second working motor mounting bracket (14) and the working motor, and remove the working motor (2) from under the loader.

[0082] The method for disassembling the working motor is to first loosen the bolts of the first travel motor support and the support leg in a bottom-up order, and then loosen the bolts of each mounting support and support leg connected to the working motor, thereby gradually releasing the connection between the working motor and the loader frame, while solving the obstruction of the first travel motor support and the support leg to the disassembly process, and finally achieving complete disassembly of the working motor.

[0083] Since the loader provided by this application is a small loader with a weight of less than 2 tons, the traditional travel motors are installed at the front and rear wheels, that is, four travel motors need to be installed. This application integrates the travel motors under the cab and adopts the rear-wheel drive mode to provide sufficient traction and driving force. At the same time, it faces the technical problem that the space under the cab is small and it is difficult to reasonably install two integrated motors.

[0084] If the two motors are placed side by side, there is insufficient space; if the two motors are placed one above the other or there is an overlapping area in the projected area, during the disassembly and maintenance process, the cab cannot be disassembled and needs to be disassembled from bottom to top. Therefore, the bottom motor needs to be disassembled first, and then the upper motor. At this time, if only the upper motor needs to be maintained, the lower motor needs to be disassembled at the same time, resulting in time-consuming and labor-intensive maintenance and low efficiency.

[0085] To this end, the present application optimizes the dual-motor structure, placing the working motor on the upper side of the walking motor, so that there is no overlapping area in the projected areas of the two motors. At the same time, the spatial layout of the motor fixings is optimized, the disassembly process of the working motor is simplified, the time and labor intensity required for disassembly are reduced, the skill requirements for the operator are reduced, and the safety of disassembly is improved.

[0086] The working motor disassembly method of the dual-motor structure provided in the present application is suitable for scenarios such as maintenance, repair or replacement of the working motor of a small loader, especially in emergency situations where on-site conditions are limited or the working motor needs to be replaced quickly. This method can effectively shorten downtime and improve work efficiency.

[0087] In one embodiment, the present invention also provides a method for disassembling a travel motor of a dual-motor structure of a small loader, comprising: performing the following steps from bottom to top from the bottom of the loader:

[0088] Step 1: Loosen the bolts between the first travel motor mounting leg (8) and the vehicle frame, loosen the bolts between the first travel motor mounting leg (8) and the first travel motor mounting support (4), and remove the first travel motor mounting leg (8);

[0089] Step 2: Loosen the bolts between the first travel motor mounting bracket (4) and the travel motor (1), and remove the first travel motor mounting bracket (4);

[0090] Step 3: Loosen the bolts between the third travel motor mounting leg (10) and the vehicle frame, loosen the bolts between the third travel motor mounting leg (10) and the third travel motor mounting support (6), and remove the third travel motor mounting leg (10);

[0091] Step 4: Loosen the bolts between the third travel motor mounting bracket (6) and the travel motor (1), and remove the third travel motor mounting bracket (6);

[0092] Step 5: Loosen the bolts between the travel motor and the gearbox (3) and remove the travel motor (1) from under the loader.

[0093] In one embodiment, the present invention further provides a dual-motor disassembly method based on a dual-motor structure of a small loader, comprising: performing the following steps from bottom to top from the bottom of the loader:

[0094] Step 1: Loosen the bolts between the first travel motor mounting leg (8) and the vehicle frame, loosen the bolts between the first travel motor mounting leg (8) and the first travel motor mounting support (4), and remove the first travel motor mounting leg (8);

[0095] Step 2: Loosen the bolts between the first travel motor mounting bracket (4) and the travel motor (1), and remove the first travel motor mounting bracket (4);

[0096] Step 3: Loosen the bolts between the third travel motor mounting leg (10) and the vehicle frame, loosen the bolts between the third travel motor mounting leg (10) and the third travel motor mounting support (6), and remove the third travel motor mounting leg (10);

[0097] Step 4: Loosen the bolts between the third travel motor mounting bracket (6) and the travel motor (1), and remove the third travel motor mounting bracket (6);

[0098] Step 5: Loosen the bolts between the travel motor (1) and the gearbox (3), and remove the travel motor (1) from under the loader;

[0099] Step 6: Loosen the bolts between the working motor mounting leg and the vehicle frame, loosen the bolts between the working motor mounting leg and the first working motor mounting support (12), and remove the working motor mounting leg;

[0100] Step 7: Loosen the bolts between the first working motor mounting support (12) and the working motor (2), and remove the first working motor mounting support (12);

[0101] Step 8: Loosen the bolts between the second working motor mounting bracket (14) and the working motor (2), and remove the working motor (2) from under the loader.

[0102] The dual-motor disassembly method provided by the present invention gradually loosens the connecting bolts between the frame, the motor mounting bracket and the motor, and gradually releases the fixed relationship between the motor and the loader, thereby realizing the disassembly of the motor. The disassembly operation is intuitive and easy to understand, and the disassembly process can be completed without disassembling the cab from above.

[0103] The travel motor disassembly method provided by the present invention loosens the bolts of each mounting support and support leg connected to the travel motor one by one, thereby gradually releasing the connection between the travel motor and the loader frame and the transmission, and finally realizing the complete disassembly of the travel motor. The disassembly process is simple, and potential damage to other components of the loader during the disassembly process is avoided.

[0104] In one embodiment, the present invention also provides a transmission disassembly method based on a dual-motor structure of a small loader, comprising: performing the following steps from bottom to top from the bottom of the loader:

[0105] Step 1: Loosen the bolts between the second travel motor mounting leg (9) and the vehicle frame, loosen the bolts between the second travel motor mounting leg (9) and the second travel motor mounting support (5), and remove the second travel motor mounting leg (9);

[0106] Step 2: Loosen the bolts between the second travel motor mounting bracket (5) and the travel motor (1), and remove the second travel motor mounting bracket (5);

[0107] Step 3: Loosen the bolts between the fourth travel motor mounting leg (11) and the vehicle frame, loosen the bolts between the fourth travel motor mounting leg (11) and the fourth travel motor mounting support (7), and remove the fourth travel motor mounting leg (11);

[0108] Step 4: Loosen the bolts between the fourth travel motor mounting bracket (7) and the travel motor (1), and remove the fourth travel motor mounting bracket (7);

[0109] Step 5: Loosen the bolts between the travel motor and the gearbox (3), and remove the gearbox (3) from under the loader.

[0110] The transmission can be disassembled step by step by gradually loosening the fixing bolts connected to the transmission. First, starting from the bottom of the loader, loosen the connecting bolts between the second and fourth travel motor mounting legs and the frame and mounting bracket in sequence, so that the travel motor mounting legs can be separated from the loader. Next, loosen the bolts between the travel motor mounting bracket and the travel motor, and further disassemble the travel motor mounting bracket. Finally, loosen the bolts between the travel motor and the transmission, and remove the transmission from the bottom of the loader. The entire disassembly process follows the order from outside to inside and from bottom to top, ensuring the smooth disassembly. The disassembly process avoids interaction with other parts of the loader and improves the safety of the disassembly work.

[0111] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A loader driven by two motors, comprising a frame, a cab and wheels arranged on the frame, and a bucket arranged at the front end of the cab, characterized in that: It also includes a working device arranged at the right rear end of the frame and a traveling device arranged at the left side of the frame; the working device is arranged above the right side of the traveling device; The working device comprises a working motor, a first fixing member and a second fixing member; The walking device includes a walking motor, a third fixing member, a fourth fixing member, a fifth fixing member and a sixth fixing member; The working motor is fixed to the rear end of the frame through a first fixing member; the working motor is fixed to the lower right end of the frame through a second fixing member, the travel motor is fixed to the lower right end of the frame through a third fixing member and a fourth fixing member, and the lower right end of the frame is sequentially arranged as a third fixing member, a second fixing member and a fourth fixing member from back to front; the travel motor is fixed to the lower right end of the frame through a fifth fixing member and a sixth fixing member, and the lower left end of the frame is sequentially arranged as a fifth fixing member and a sixth fixing member from back to front.

2. The dual-motor driven loader according to claim 1, characterized in that: The working motor is provided with a working motor shaft for driving the bucket to work and the front wheel to steer; the traveling motor is provided with a traveling motor shaft for driving the rear wheel to move.

3. The dual-motor driven loader as described in claim 2 is characterized in that the travel motor is also fixed to the gearbox, and the gearbox is used to adjust the rotation speed of the travel motor shaft.

4. The dual-motor driven loader according to claim 1, characterized in that: The first fixing member includes a first working motor mounting support and a working motor suspension beam arm support leg. The working motor is fixed to the working motor suspension beam arm support leg through the first working motor mounting support, and the working motor suspension beam arm support leg is installed on the rear cross beam of the frame through bolts.

5. The dual-motor driven loader according to claim 1, characterized in that: The second fixing member includes a second working motor mounting support and a working motor mounting leg, the working motor is fixed to the working motor mounting leg through the second working motor mounting support, and the working motor mounting leg is installed at the middle end of the bottom right side of the frame through bolts.

6. The dual-motor driven loader according to claim 1, characterized in that: The third fixing member includes a first walking motor mounting support and a first walking motor mounting leg. The right rear of the walking motor is fixed to the first walking motor mounting leg through the first walking motor mounting support. The first walking motor mounting leg is installed at the rear end of the right bottom of the frame by bolts.

7. The dual-motor driven loader according to claim 1, characterized in that: The fourth fixing member includes a second travel motor mounting support and a second travel motor mounting leg. The right front of the travel motor is fixed to the second travel motor mounting leg through the second travel motor mounting support. The second travel motor mounting leg is installed at the front end of the bottom right side of the frame by bolts.

8. The dual-motor driven loader according to claim 1, characterized in that: The fifth fixing member includes a third travel motor mounting support and a third travel motor mounting leg. The left rear of the travel motor is fixed to the third travel motor mounting leg through the third travel motor mounting support. The third travel motor mounting leg is installed at the rear end of the left bottom of the frame by bolts.

9. The dual-motor driven loader according to claim 1, characterized in that: The sixth fixing member includes a fourth travel motor mounting support and a fourth travel motor mounting leg. The left front of the travel motor is fixed to the fourth travel motor mounting leg through the fourth travel motor mounting support. The fourth travel motor mounting leg is installed at the front end of the left bottom of the frame by bolts.

10. A maintenance method for a dual-motor driven loader according to any one of claims 1 to 9, characterized in that: include: Remove the third fixing member, the second fixing member and the first fixing member in sequence, remove the working motor from under the loader, and complete the maintenance of the working motor; Then disassemble the fourth fixing member, the fifth fixing member and the sixth fixing member in sequence, remove the travel motor from under the loader, and complete the maintenance of the travel motor.

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