Tool for modular assembly of walking motor and driving wheel of excavator
By designing modular assembly fixtures, the overall installation of the travel motor and drive wheels is achieved, solving the problem of long time consumption in existing technologies and improving the production efficiency of excavators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
The assembly process of the existing excavator travel motor and drive wheel is time-consuming, requiring multiple hoisting and bolt tightening, which affects production efficiency.
Design a modular assembly fixture for excavator travel motor and drive wheel, including mounting base plate, vertical plate, slide rail, lifting platform and support base. By combining the slide rail and lifting platform, the travel motor and drive wheel can be installed as a whole, reducing the number of hoisting and bolt tightening operations.
By reducing the number of hoisting and bolt tightening operations, assembly time is significantly saved, and production efficiency and cycle time are improved.
Smart Images

Figure CN224059693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to excavator assembly technical field, concretely relates to a tool for excavator walking motor and drive wheel modular assembly. BACKGROUND
[0002] The excavator walking motor and drive wheel are the execution mechanism for realizing the walking action of the excavator, wherein the walking motor and the reducer total become the hydraulic drive element, are installed on the lower frame of the excavator, and are driven to rotate by high-pressure hydraulic oil. The drive wheel is connected with the walking motor and rotates along with the walking motor, thereby driving the track chain to move. At present, the engineering machinery industry has entered the information intelligent production era, and the assembly production line of the excavator mostly adopts automatic and intelligent equipment to assist production. The lower car assembly line of the excavator has basically realized automatic production, and most of the stations adopt automatic equipment for assembly, for example, the mechanical arm is used for visual grabbing and placing for the pre-assembly of the supporting wheel, and the mechanical arm is used for setting the corresponding torque for automatic tightening of the installation bolt of the slewing bearing. In order to further improve the production and assembly efficiency and speed up the production rhythm, it is necessary to start from shortening the time of manual assembly station. The current walking motor and drive wheel assembly are long-time manual assembly stations, and the design of the corresponding assembly tool for shortening the assembly time is of great significance to improve the production efficiency.
[0003] At present, the excavator lower car assembly production line mostly adopts sequential assembly when assembling the walking motor and the drive wheel, that is, the walking motor is first hoisted to the frame support seat and is pre-tightened with bolts, and then is finally tightened with a torque wrench. After the walking motor is assembled, the drive wheel is hoisted to the walking motor mounting seat and is pre-tightened with bolts, and finally is tightened with a torque wrench. Considering the symmetry of the left and right assembly of the lower frame, this traditional assembly process needs to perform 4 hoisting operations, 4 pre-tightening and 4 final tightening on the walking motor and the drive wheel. At the same time, due to the large number of installation bolts of the walking motor and the drive wheel, this repetitive manual operation seriously affects the production efficiency of the main assembly line and limits the production rhythm. UTILITY MODEL CONTENTS
[0004] In view of the above problems, the utility model provides a tool for modular assembly of excavator walking motor and drive wheel. The walking motor and the drive wheel of the excavator are assembled first, and then are distributed to the main assembly line. The assembly time of the main assembly line is greatly saved, the production efficiency of the main assembly line is improved, and the production rhythm is improved.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a tooling for modular assembly of an excavator's travel motor and drive wheel, comprising a mounting base plate, a vertical plate fixedly fixed on the mounting base plate, a through hole opened at the upper part of the vertical plate, a support plate provided on one side of the vertical plate, a slide rail also provided on the mounting base plate, the slide rail being perpendicular to the vertical plate, a slider and a limiting block provided on the slide rail, the slider being slidably connected to the slide rail, a lifting platform fixedly connected to the slider, and a support seat provided on the lifting platform.
[0006] As a further embodiment of this utility model: the two sides of the upright plate are fixedly connected with first reinforcing ribs, and the bottom of the first reinforcing ribs is fixedly connected to the mounting base plate.
[0007] As a further improvement of this utility model: the support plate is M-shaped, and a first nylon block is installed on the upper surface of the support plate by screws.
[0008] As a further improvement of this utility model: the limiting block is provided with a limiting screw, and the limiting block is fixed in position on the slide rail by the limiting screw, thereby limiting the sliding of the slider. The contact surface between the limiting block and the slider is also provided with an anti-collision screw.
[0009] As a further embodiment of this utility model: the lifting platform includes a lifting base plate, which is fixedly connected to a slider. The lifting base plate is provided with a first baffle and a first lifting slider. The first lifting slider is slidably connected to the lifting base plate. A second baffle and a second lifting slider are provided above the first baffle and the first lifting slider. A lifting top plate is connected to the top of the second baffle. The second lifting slider is slidably connected to the lifting top plate. The first baffle and the second baffle, and the first lifting slider and the second lifting slider are connected by a scissor assembly. A lead screw is connected to the second lifting slider, and a knob is provided at the other end of the lead screw.
[0010] As a further improvement of this utility model, a locking mechanism is also provided on one side of the knob.
[0011] As a further embodiment of this utility model: the lifting base plate and the lifting top plate are respectively provided with a first slide rod and a second slide rod, the first lifting slider and the first slide rod are slidably connected, and the second lifting slider and the second slide rod are slidably connected.
[0012] As a further embodiment of this utility model: the support base includes a support base plate, the support base plate is fixedly connected to the lifting top plate, the support base plate is vertically provided with a support side plate, the top of the support side plate is provided with a support top plate, and a second nylon block is connected to the support top plate.
[0013] As a further improvement of this utility model, a second reinforcing rib is provided between the supporting side plates.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model effectively supports the cylindrical surface of the travel motor by setting up a lifting platform and a support base, making it convenient to fix the travel motor on this tooling.
[0016] 2. This utility model, through the setting of the slide rail, allows the lifting platform and support base to be adjusted in position, which facilitates the operation when installing the drive wheel;
[0017] 3. This utility model first assembles the excavator's travel motor and drive wheel, and then delivers them to the main assembly line. The travel motor and drive wheel are then installed as a whole onto the underframe, reducing the main assembly line's two hoisting operations, two bolt pre-tightening operations, and two bolt final tightening operations. This reduces manual operation procedures, saves a significant amount of assembly time on the main assembly line, improves the main assembly line's production efficiency, and increases the production cycle time. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the modular assembly tooling for the excavator's travel motor and drive wheel according to this utility model.
[0019] Figure 2 This is a schematic diagram of the mounting base plate structure of the modular assembly tooling for the excavator travel motor and drive wheel according to this utility model;
[0020] Figure 3 This is a schematic diagram of the slide rail structure of the modular assembly tooling for the excavator travel motor and drive wheel according to the present invention.
[0021] Figure 4 This is a schematic diagram of the lifting platform and support base structure of the modular assembly tooling for the excavator's travel motor and drive wheel according to the present invention.
[0022] Figure 5 This is a top view of the lifting platform structure of the present invention, which is used for modular assembly of excavator travel motor and drive wheel.
[0023] Figure 6 This is a diagram showing the state of the modular assembly tooling for excavator travel motor and drive wheel during assembly work.
[0024] In the diagram: 1. Mounting base plate; 2. Vertical plate; 3. Through hole; 4. Support plate; 5. Slide rail; 6. Slider; 7. Limit block; 8. Lifting platform; 81. Lifting base plate; 82. First baffle; 83. First lifting slider; 84. Second baffle; 85. Second lifting slider; 86. Lifting top plate; 87. Scissor lift assembly; 88. Lead screw; 89. Knob; 810. Locking mechanism; 811. First slide rod; 812. Second slide rod; 9. Support seat; 91. Support base; 92. Support side plate; 93. Support top plate; 94. Second nylon block; 95. Second reinforcing rib; 10. First reinforcing rib; 11. First nylon block; 12. Limit screw; 13. Anti-collision screw. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] refer to Figures 1 to 6 A tooling for modular assembly of excavator travel motor and drive wheel includes a mounting base plate 1, a vertical plate 2 fixed on the mounting base plate 1, a through hole 3 on the upper part of the vertical plate 2, a support plate 4 on one side of the vertical plate 2, a slide rail 5 on the mounting base plate 1, the slide rail 5 being perpendicular to the vertical plate 2, a slider 6 and a limit block 7 on the slide rail 5, the slider 6 being slidably connected to the slide rail 5, a lifting platform 8 fixedly connected to the slider 6, and a support seat 9 on the lifting platform 8.
[0027] The two sides of the upright plate 2 are fixedly connected with the first reinforcing rib 10, and the bottom of the first reinforcing rib 10 is fixedly connected to the mounting base plate 1.
[0028] The support plate 4 is M-shaped, and the upper surface of the support plate 4 is fitted with a first nylon block 11 by screws.
[0029] The limiting block 7 is provided with a limiting screw 12. The limiting block 7 is fixed in position on the slide rail 5 by the limiting screw 12, which limits the sliding of the slider 6. The contact surface between the limiting block 7 and the slider 6 is also provided with an anti-collision screw 13.
[0030] The lifting platform 8 includes a lifting base plate 81, which is fixedly connected to the slider 6. The lifting base plate 81 is provided with a first baffle 82 and a first lifting slider 83. The first lifting slider 83 is slidably connected to the lifting base plate 81. A second baffle 84 and a second lifting slider 85 are provided above the first baffle 82 and the first lifting slider 83. A lifting top plate 86 is connected to the top of the second baffle 84. The second lifting slider 85 is slidably connected to the lifting top plate 86. The first baffle 82 and the second baffle 84, and the first lifting slider 83 and the second lifting slider 85 are connected by a scissor assembly 87. A lead screw 88 is connected to the second lifting slider 85. A knob 89 is provided at the other end of the lead screw 88.
[0031] A locking mechanism 810 is also provided on one side of the knob 89.
[0032] The lifting base plate 81 and the lifting top plate 86 are respectively provided with a first slide rod 811 and a second slide rod 812. The first lifting slider 83 and the first slide rod 811 are slidably connected, and the second lifting slider 85 and the second slide rod 812 are slidably connected.
[0033] The support base 9 includes a support base plate 91, which is fixedly connected to the lifting top plate 86. A support side plate 92 is vertically provided on the support base plate 91, and a support top plate 93 is provided on the top of the support side plate 92. A second nylon block 94 is connected to the support top plate 93.
[0034] A second reinforcing rib 95 is provided between the supporting side plates 92.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tooling for modular assembly of excavator travel motor and drive wheel module comprising a mounting bed plate (1) characterised in that: The vertical plate (2) is vertically fixed on the mounting base plate (1), a through hole (3) is formed in the upper portion of the vertical plate (2), a supporting plate (4) is arranged on one side of the vertical plate (2), a sliding rail (5) is further arranged on the mounting base plate (1), the sliding rail (5) is perpendicular to the vertical plate (2), a sliding block (6) and a limiting block (7) are arranged on the sliding rail (5), the sliding block (6) is slidably connected with the sliding rail (5), a lifting platform (8) is fixedly connected with the sliding block (6), and a supporting seat (9) is arranged on the lifting platform (8).
2. The tooling for modular assembly of excavator travel motor and drive wheel of claim 1, wherein: First reinforcing ribs (10) are fixedly connected to the two sides of the vertical plate (2), and the bottom of the first reinforcing rib (10) is fixedly connected with the mounting base plate (1).
3. The tooling for modular assembly of excavator travel motor and drive wheel of claim 2, wherein: The supporting plate (4) is M-shaped, and a first nylon block (11) is arranged on the upper surface of the supporting plate (4) through screws.
4. The tooling for modular assembly of excavator travel motor and drive wheel of claim 3, wherein: A limiting screw (12) is arranged on the limiting block (7), the limiting block (7) is fixed in position on the sliding rail (5) through the limiting screw (12), the sliding of the sliding block (6) is limited, and an anti-collision screw (13) is further arranged on the contact surface between the limiting block (7) and the sliding block (6).
5. The tooling for modular assembly of excavator travel motor and drive wheel of claim 4, wherein: The lifting platform (8) comprises a lifting bottom plate (81), the lifting bottom plate (81) is fixedly connected with the sliding block (6), a first baffle (82) and a first lifting sliding block (83) are arranged on the lifting bottom plate (81), the first lifting sliding block (83) is slidably connected with the lifting bottom plate (81), a second baffle (84) and a second lifting sliding block (85) are arranged above the first baffle (82) and the first lifting sliding block (83), the top of the second baffle (84) is connected with a lifting top plate (86), the second lifting sliding block (85) is slidably connected with the lifting top plate (86), the first baffle (82) and the second baffle (84) are connected through a scissor assembly (87), the second lifting sliding block (85) is connected with a lead screw (88), and the other end of the lead screw (88) is provided with a knob (89).
6. The tooling for modular assembly of excavator travel motor and drive wheel of claim 5, wherein: A locking mechanism (810) is further arranged on one side of the knob (89).
7. The tooling for modular assembly of excavator travel motor and drive wheel of claim 6, wherein: First and second sliding rods (811) and (812) are arranged on the lifting bottom plate (81) and the lifting top plate (86) respectively, the first lifting sliding block (83) is slidably connected with the first sliding rod (811), and the second lifting sliding block (85) is slidably connected with the second sliding rod (812).
8. The tooling for modular assembly of excavator travel motor and drive wheel of claim 7, wherein: The supporting seat (9) comprises a supporting bottom plate (91), the supporting bottom plate (91) is fixedly connected with the lifting top plate (86), supporting side plates (92) are vertically arranged on the supporting bottom plate (91), supporting top plates (93) are arranged on the top of the supporting side plates (92), and second nylon blocks (94) are connected with the supporting top plates (93).
9. The tooling for modular assembly of excavator travel motor and drive wheel of claim 8, wherein: Second reinforcing ribs (95) are arranged between the supporting side plates (92).