Electric excavator motor assembly assembling device and working method

Abstract

The invention discloses an assembling device for a motor assembly of an electric excavator and a working method, solves the problems that an existing tool is poor in compatibility and cannot be adjusted, and finally achieves the purposes of reducing the number of the assembling device for the motor assembly and improving the working efficiency. According to the technical scheme, the device comprises a frame, a workbench, a moving device, a fixed supporting rod set and a movable supporting rod set; the fixed supporting rod set is arranged at the front end of the workbench, and the movable supporting rod set is arranged at the rear end of the workbench through a moving device. A kidney-shaped hole is formed in the upper portion of the first kidney-shaped hole supporting block at the top of the fixed supporting rod, and the first sliding supporting block can move in the kidney-shaped hole. The moving device comprises a sliding block, a guide rail and a limiting block; the bottom of the second outer supporting rod of the movable supporting rod is detachably connected with the sliding block, the sliding block is installed on the guide rail, limiting blocks are arranged at the two ends of the guide rail, and the length direction of the second kidney-shaped hole is perpendicular to the length arrangement direction of the guide rail.

Description

Technical Field

[0001] The invention belongs to the technical field of motor assembly, and in particular relates to an assembly device and a working method of a motor assembly of an electric excavator. Background Art

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

[0003] At present, electric excavators work by driving motors with electric energy. Different electric excavators are matched with different motor models, and their structural forms and installation forms are also different, which easily leads to a variety of motor assembly devices, complicated types and reduced production space due to occupation of land, resulting in the inability of existing assembly devices to meet production needs and low work efficiency.

[0004] The assembly tooling in the prior art has poor compatibility and is usually only applicable to motors of the same model. When assembling motors of different models, the corresponding tooling needs to be replaced, which not only increases the number of tooling but also reduces assembly efficiency. It is not easy to adapt to the size differences of different motors in height, length, width and other directions. This non-adjustability may result in the inability to accurately and efficiently position and assemble the motor during the assembly process, which in turn affects work efficiency, increases production costs, and is not convenient for the management of on-site tooling and fixtures. Summary of the invention

[0005] In view of the above problems, the present invention provides an electric excavator motor assembly assembly device and working method, which can be compatible with various models of motors for motor assembly assembly, and can be quickly and continuously adjusted in the height, length and width directions, thereby solving the problems of poor compatibility and non-adjustability of existing tooling, and ultimately achieving the purpose of reducing the number of motor assembly devices and improving work efficiency.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In a first aspect, the present invention provides an electric excavator motor assembly assembly device, including a vehicle frame, a workbench, a moving device, a fixed support rod group, and a moving support rod group;

[0008] A frame is provided below the workbench, and movable wheels are provided below the frame; the fixed support rod group is provided at the front end of the workbench, and the movable support rod group is provided at the rear end of the workbench; the movable support rod group has two movable support rods, and the fixed support rod group has two fixed support rods;

[0009] The fixed support rod comprises a first outer support rod, a first inner support rod, a first waist hole support block and a first sliding support block, the first outer support rod core is installed with the first inner support rod, the top of the first inner support rod is provided with a first waist hole support block, the upper part of the first waist hole support block is provided with a first waist hole, and the first sliding support block is installed in the first waist hole;

[0010] The moving device includes a slider, a guide rail and a limit block; the moving support rod includes a second outer support rod, a second inner support rod, a second waist hole support block and a second sliding support block, the second outer support rod core is installed with the second inner support rod, the top of the second inner support rod is provided with a second waist hole support block, the upper part of the second waist hole support block is provided with a second waist hole, and the second sliding support block is installed in the second waist hole; the bottom of the second outer support rod is connected to the slider, the slider is installed on the guide rail, and limit blocks are provided at both ends of the guide rail, and the length direction of the second waist hole is perpendicular to the length arrangement direction of the guide rail.

[0011] Furthermore, the workbench is composed of a closed steel plate and a supporting steel plate. There are two supporting steel plates. The closed steel plate is welded at the middle position above the frame, and the supporting steel plates are welded at the left and right sides above the frame.

[0012] Furthermore, the thickness of the supporting steel plate is greater than the thickness of the closing steel plate, and the upper surface of the supporting steel plate is processed by milling, and the guide rail is fixed to the rear end of the supporting steel plate by a limit block.

[0013] Furthermore, a plurality of through holes are provided on the side walls of the first outer support rod and the first inner support rod, bolts are provided in the through holes, a first support rod mounting frame is provided at the lower end of the first outer support rod, and the first support rod mounting frame is fixedly connected to the front end of the supporting steel plate through a first connecting member.

[0014] Furthermore, the top of the first inner support rod is connected to the first waist hole support block by welding.

[0015] Furthermore, a plurality of through holes are provided on the side walls of the second outer support rod and the second inner support rod, bolts are provided in the through holes, a second support rod mounting frame is provided at the lower end of the second outer support rod, and the second support rod mounting frame is connected to the slider via a connecting piece.

[0016] Furthermore, the top of the second inner support rod is connected to the second waist hole support block by welding.

[0017] Furthermore, the limiting block is provided with a connecting hole, and forms a detachable connection with the supporting steel plate through a connecting piece.

[0018] Furthermore, a first positioning column is disposed above the first sliding support block, and a second positioning column is disposed above the second sliding support block, for positioning and fixing the motor assembly.

[0019] In a second aspect, the present invention further provides a working method of an electric excavator motor assembly assembly device, comprising the following steps:

[0020] When the motor is assembled, the distance between the movable support rod and the fixed support rod is adjusted by adjusting the slider to meet the length requirements of the device for different motor assemblies;

[0021] By adjusting the corresponding relationship between the plurality of through holes on the side wall of the first outer support rod and the plurality of through holes on the side wall of the first inner support rod, the height of the fixed support rod is adjusted to meet the height requirements of different motor assemblies; by adjusting the corresponding relationship between the plurality of through holes on the side wall of the second outer support rod and the plurality of through holes on the side wall of the second inner support rod, the height of the movable support rod is adjusted to meet the height requirements of different motor assemblies;

[0022] By adjusting the relative position between the first waist hole and the first sliding support block, and by adjusting the relative position between the second waist hole and the second sliding support block, the width direction of the fixed support rod and the width direction of the movable support rod can be adjusted.

[0023] Compared with the prior art, the present invention has the following advantages and positive effects:

[0024] The present invention can change the distance between the movable support rod and the fixed support rod in the length direction by adjusting the slider; in the height direction, the height of the fixed support rod and the movable support rod can be changed by adjusting the relative position of the outer support rod and the inner support rod; in the width direction, the adjustment can be achieved by adjusting the relative position between the waist hole and the sliding support block, thus overcoming the limitation that the traditional tooling cannot be adjusted; it can be adjusted according to the size and shape of the motor assembly, and can adapt to the assembly requirements of motor assemblies of different specifications, thus solving the problem of poor compatibility of existing tooling; the fixed support rod and the movable support rod work together to provide reliable support for the motor assembly, thus avoiding component damage or assembly errors caused by unstable support during the assembly process, thus ensuring assembly quality. The time for replacing tooling when assembling different motor assemblies is reduced, and the operator can quickly adjust the position of the support rod to adapt to new tasks, thus shortening the overall assembly process time and improving production efficiency.

[0025] The frame of the present invention is provided with moving wheels under it, so as to facilitate the movement and positioning of the whole device in the assembly workshop; the workbench is composed of a closed steel plate and a supporting steel plate, the closed steel plate can prevent parts or tools from falling, and the supporting steel plate is processed to ensure the flatness of the guide rail installation and its own strength, thereby providing a stable plane for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 The overall structure diagram of the electric excavator motor assembly assembly device of the present invention;

[0028] Figure 2 This is a structural diagram of a fixed support rod of the present invention;

[0029] Figure 3 This is a structural diagram of the Yidong support rod and the moving device of the present invention.

[0030] In the figure: 1. frame; 2. workbench; 3. fixed support rod; 4. movable support rod; 5. moving device; 6. moving wheel; 7. handrail; 8. first outer support rod; 9. first inner support rod; 10. first waist hole support block; 11. first sliding support block; 12. first positioning column; 13. first support rod mounting frame; 14. second outer support rod; 15. second inner support rod; 16. second waist hole support block; 17. second sliding support block; 18. second positioning column; 19. second support rod mounting frame; 20. slider; 21. guide rail; 22. limit block. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of 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.

[0032] 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;

[0033] This embodiment discloses an electric excavator motor assembly assembly device, such as Figure 1-Figure 3As shown, it includes a frame 1, a workbench 2, a moving device 5, a fixed support rod 3 group and a mobile support rod 4 group; the frame 1 is arranged below the workbench 2, and a moving wheel 6 is arranged below the frame 1; the fixed support rod 3 group is arranged at the front end of the workbench 2, and the mobile support rod 4 group is arranged at the rear end of the workbench 2; the mobile support rod 4 group has two mobile support rods 4, and the fixed support rod 3 group has two fixed support rods 3; the fixed support rod 3 includes a first outer support rod 8, a first inner support rod 9, a first waist hole support block 10 and a first sliding support block 11, the first outer support rod 8 is installed with the first inner support rod 9 at the core, the first inner support rod 9 is provided with a first waist hole support block 10 at the top, the first waist hole support block 10 is provided with a first waist hole at the upper part, and the first The first sliding support block 11 is installed in the waist hole; the moving device 5 includes a slider 20, a guide rail 21 and a limit block 22; the moving support rod 4 includes a second outer support rod 14, a second inner support rod 15, a second waist hole support block 16 and a second sliding support block 17, the second outer support rod 14 is installed with the second inner support rod 15 at the core, the second inner support rod 15 is provided with a second waist hole support block 16 at the top, the second waist hole support block 16 is provided with a second waist hole at the upper part, and the second sliding support block 17 is installed in the second waist hole; the bottom of the second outer support rod 14 is connected to the slider 20, the slider 20 is installed on the guide rail 21, and the limit blocks 22 are provided at both ends of the guide rail 21, and the length direction of the second waist hole is perpendicular to the length arrangement direction of the guide rail 21.

[0034] In this embodiment, the frame 1 is welded with square steel pipes. The workbench 2 arranged above the frame 1 is composed of a closed steel plate and a supporting steel plate. There are two supporting steel plates. The closed steel plate is welded in the middle position above the frame 1, and the supporting steel plate is welded on the left and right sides above the frame 1. The function of the closed steel plate is to prevent the parts or tools of the motor from falling under the bracket during the assembly process, so as to facilitate the timely picking up of the fallen parts or tools. The thickness of the supporting steel plate is greater than that of the closed steel plate, and the upper surface of the supporting steel plate is processed by milling. The guide rail 21 is detachably connected to the supporting steel plate through a limit block 22. While ensuring that the supporting steel plate has a high supporting strength, it is necessary to ensure the flatness of the guide rail 21 installation; the workbench 2 provides a stable operating plane. The moving wheels 6 below the frame 1 facilitate the movement and positioning of the entire device, and the device can be easily moved to a suitable position in the assembly workshop.

[0035] The fixed support rod 3 includes a first outer support rod 8, a first inner support rod 9, a first waist hole support block 10 and a first sliding support block 11. The first outer support rod 8 is installed with the first inner support rod 9 at its core. The side walls of the first outer support rod 8 and the first inner support rod 9 are provided with a plurality of through holes, and bolts are provided in the through holes. The lower end of the first outer support rod 8 is provided with a first support rod mounting frame 13, and the first support rod mounting frame 13 is fixedly connected to the front end of the support steel plate through a first connecting member; the total length between the first outer support rod 8 and the first inner support rod 9 is It can be adjusted by cooperating between different through holes. A first waist hole support block 10 is arranged on the top of the first inner support rod 9. The top of the first inner support rod 9 is connected to the first waist hole support block 10 by welding. A first waist hole is arranged on the upper part of the first waist hole support block 10. The first sliding support block 11 is installed in the first waist hole. The first sliding support block 11 can move along the length direction of the first waist hole. A first positioning column 12 is arranged above the first sliding support block 11 for positioning the motor assembly.

[0036] The moving device 5 includes a slider 20, a guide rail 21 and a limit block 22; the moving support rod 4 includes a second outer support rod 14, a second inner support rod 15, a second waist hole support block 16 and a second sliding support block 17, the second outer support rod 14 core is installed with the second inner support rod 15, the side walls of the second outer support rod 14 and the second inner support rod 15 are each provided with a plurality of through holes, bolts are provided in the through holes, the lower end of the second outer support rod 14 is provided with a second support rod mounting frame 19, the top of the second inner support rod 15 is provided with a second waist hole support block 16, the upper part of the second waist hole support block 16 is provided with a second waist hole, the second sliding support block 17 is installed in the second waist hole, The top of the second inner support rod 15 is connected to the second waist hole support block 16 by welding; the second support rod mounting frame 19 is connected to the slider 20 by a connecting piece, and the slider 20 is installed on the guide rail 21. Limit blocks 22 are set at both ends of the guide rail 21. The limit blocks 22 at both ends of the guide rail 21 can prevent the slider 20 from separating from the guide rail 21 during movement, thereby ensuring the stability of the mobile support rod 4 during adjustment and use; the length direction of the second waist hole is perpendicular to the length arrangement direction of the guide rail 21; the guide rail 21 is installed at the rear end of the support steel plate, and a second positioning column 18 is set above the second sliding support block 17 for positioning and fixing the motor assembly.

[0037] The design of the mobile support rod 4 group and the fixed support rod 3 group allows them to be adjusted according to the size and shape of the motor assembly. The mobile support rod 4 can move on the guide rail 21. The distance between the two mobile support rods 4 can be changed by the cooperation of the slider 20 and the guide rail 21. The mobile support rod 4 and the fixed support rod 3 can be extended and retracted, and the design of the waist hole support block and the sliding support block also has an adjustable gap, which can adapt to the assembly requirements of motor assemblies of different specifications, and can reduce the time for replacing tooling when assembling different motor assemblies. The operator can quickly adjust the position of the support rod to adapt to the new assembly task, thereby shortening the overall assembly process time and improving production efficiency. The synergistic effect of the fixed support rod 3 and the mobile support rod 4 provides reliable support for the motor assembly, avoiding component damage or assembly errors caused by unstable support during the assembly process.

[0038] Working method:

[0039] When the motor is assembled, the distance between the movable support rod 4 and the fixed support rod 3 is adjusted by adjusting the slider 20 to meet the length requirements of the device for different motor assemblies; the height of the fixed support rod 3 is adjusted by adjusting the corresponding relationship between the several through holes on the side wall of the first outer support rod 8 and the several through holes on the side wall of the first inner support rod 9 to adapt to the height requirements of different motor assemblies; the height of the movable support rod 4 is adjusted by adjusting the corresponding relationship between the several through holes on the side wall of the second outer support rod 14 and the several through holes on the side wall of the second inner support rod 15 to adapt to the height requirements of different motor assemblies; by adjusting the relative position between the first waist hole and the first sliding support block 11, the width direction of the fixed support rod 3 and the width direction of the movable support rod 4 can be adjusted; thereby, the length, width and height directions can all be adjusted; the synergistic effect of the fixed support rod 3 and the movable support rod 4 can adapt to the assembly requirements of motor assemblies of different specifications, provide reliable support for the motor assembly, and avoid component damage or assembly errors caused by unstable support during the assembly process.

[0040] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. An electric excavator motor assembly assembly device, characterized in that: It includes a vehicle frame, a workbench, a moving device, a fixed support rod group and a moving support rod group; A frame is provided below the workbench, and movable wheels are provided below the frame; the fixed support rod group is provided at the front end of the workbench, and the movable support rod group is provided at the rear end of the workbench; the movable support rod group has two movable support rods, and the fixed support rod group has two fixed support rods; The fixed support rod comprises a first outer support rod, a first inner support rod, a first waist hole support block and a first sliding support block, the first outer support rod core is installed with the first inner support rod, the top of the first inner support rod is provided with a first waist hole support block, the upper part of the first waist hole support block is provided with a first waist hole, and the first sliding support block is installed in the first waist hole; The moving device includes a slider, a guide rail and a limit block; the moving support rod includes a second outer support rod, a second inner support rod, a second waist hole support block and a second sliding support block, the second outer support rod core is installed with the second inner support rod, the top of the second inner support rod is provided with a second waist hole support block, the upper part of the second waist hole support block is provided with a second waist hole, and the second sliding support block is installed in the second waist hole; the bottom of the second outer support rod is connected to the slider, the slider is installed on the guide rail, and limit blocks are provided at both ends of the guide rail, and the length direction of the second waist hole is perpendicular to the length arrangement direction of the guide rail.

2. The electric excavator motor assembly assembly device according to claim 1, characterized in that: The workbench is composed of a closed steel plate and a supporting steel plate. There are two supporting steel plates. The closed steel plate is welded to the middle position above the frame, and the supporting steel plates are welded to the left and right sides above the frame.

3. The electric excavator motor assembly assembly device according to claim 2, characterized in that: The thickness of the supporting steel plate is greater than that of the closing steel plate, and the upper surface of the supporting steel plate is milled, and the guide rail is fixed to the rear end of the supporting steel plate through a limiting block.

4. The electric excavator motor assembly assembly device according to claim 2, characterized in that: A plurality of through holes are provided on the side walls of the first outer support rod and the first inner support rod, bolts are provided in the through holes, a first support rod mounting frame is provided at the lower end of the first outer support rod, and the first support rod mounting frame is fixedly connected to the front end of the supporting steel plate through a first connecting member.

5. The electric excavator motor assembly assembly device according to claim 1, characterized in that: The top of the first inner support rod is connected to the first waist hole support block by welding.

6. The electric excavator motor assembly assembly device according to claim 1, characterized in that: The side walls of the second outer support rod and the second inner support rod are both provided with a plurality of through holes, bolts are provided in the through holes, a second support rod mounting frame is provided at the lower end of the second outer support rod, and the second support rod mounting frame is connected to the slider via a connecting piece.

7. The electric excavator motor assembly assembly device according to claim 1, characterized in that: The top of the second inner support rod is connected to the second waist hole support block by welding.

8. The electric excavator motor assembly assembly device according to claim 3, characterized in that: The limiting block is provided with a connecting hole and is detachably connected to the supporting steel plate through a connecting piece.

9. The electric excavator motor assembly assembly device according to claim 1, characterized in that: A first positioning column is disposed above the first sliding support block, and a second positioning column is disposed above the second sliding support block, for positioning and fixing the motor assembly.

10. A working method for assembling a motor assembly of an electric excavator according to any one of claims 2 to 9, characterized in that: The following steps are involved: When the motor is assembled, the distance between the movable support rod and the fixed support rod is adjusted by adjusting the slider to meet the length requirements of the device for different motor assemblies; By adjusting the corresponding relationship between the plurality of through holes on the side wall of the first outer support rod and the plurality of through holes on the side wall of the first inner support rod, the height of the fixed support rod is adjusted to meet the height requirements of different motor assemblies; by adjusting the corresponding relationship between the plurality of through holes on the side wall of the second outer support rod and the plurality of through holes on the side wall of the second inner support rod, the height of the movable support rod is adjusted to meet the height requirements of different motor assemblies; By adjusting the relative position between the first waist hole and the first sliding support block, and by adjusting the relative position between the second waist hole and the second sliding support block, the width direction of the fixed support rod and the width direction of the movable support rod can be adjusted.

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