Lower disc of micro-excavation integrated structure

Abstract

A lower disc of a micro-excavation integrated structure comprises a lower plate, the lower plate comprises a motor mounting plate and a bridge frame, and the two sides of the lower plate are bent downwards to form an integrated structure of the motor mounting plate and the bridge frame; the outer side end of the bridge frame is fixedly connected with a walking support, and one end of the walking support is provided with a guide wheel installation base. Side plates are fixedly connected to the front and rear ends of the lower plate; the lower disc is formed by bending a whole plate, uniform stress is guaranteed to the maximum extent, the welding process is optimized under the condition that the use strength is not affected, the motor mounting plate and the middle bridge frame are made into a whole through the integrated lower disc structure, the vertical position relation between the walking motor and the lower disc is guaranteed to the maximum extent, and the service life of the walking motor is prolonged. The driving chain wheel and the guide wheel can be ensured to be on the same plane, the risks of deviation of the walking motor and falling of a crawler belt are greatly reduced, four square pipes are arranged below the whole mounting plate for reinforcement, and the use strength of the lower disc is ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of excavators, in particular to a lower plate of a micro-excavation integrated structure. Background technology:

[0002] The existing micro-excavator lower plate is made of a variety of plate parts spliced ​​and welded together. During the splicing process, cost control needs to be considered, and plates of various thicknesses are selected for splicing, which causes difficulties in the welding process. In addition, the different thicknesses of the plates cause different forces, which seriously affects the service life of the lower plate. Summary of the invention:

[0003] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides a lower plate of a micro-excavator integrated structure, including a lower plate, the lower plate including a motor mounting plate and a bridge frame, and both sides of the lower plate are bent downward to form an integral structure of the motor mounting plate and the bridge frame;

[0004] The outer end of the bridge frame is fixedly connected with a traveling bracket, and one end of the traveling bracket is respectively provided with a guide wheel mounting seat.

[0005] Furthermore, the front and rear ends of the lower plate are fixedly connected to side plates.

[0006] Furthermore, the side plate and the lower plate are connected by welding to produce a weld, and the weld is located on the inner side of the side plate.

[0007] Furthermore, a square tube is fixedly connected to the lower part of the lower plate for reinforcement.

[0008] Furthermore, there are four square tubes in total.

[0009] Furthermore, a sprocket mounting seat is fixedly connected to the side plate, and the sprocket mounting seat and the guide wheel mounting seat are on the same horizontal plane.

[0010] The beneficial effects of the utility model are:

[0011] The lower plate is formed by bending a whole plate, which ensures uniform force to the greatest extent and optimizes the welding process without affecting the strength of use. The structure of the one-piece lower plate makes the motor mounting plate and the middle bridge into a whole, which maximizes the vertical position relationship between the travel motor and the lower plate, ensuring that the drive sprocket and the guide wheel can be on the same plane, greatly reducing the risk of the travel motor running off and the track falling off. There are four square tubes under the entire mounting plate for reinforcement to ensure the strength of the lower plate. Description of the drawings:

[0012] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0013] 1. Square tube, 2. Motor mounting plate, 3. Bridge, 4. Side plate, 5. Sprocket mounting seat, 6. Traveling bracket. Specific implementation method:

[0014] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 , the utility model is described in more detail.

[0015] The utility model provides a lower plate of a micro-excavation integrated structure, including a lower plate, the lower plate including a motor mounting plate 2 and a bridge frame 3, both sides of the lower plate are bent downward to form an integral structure of the motor mounting plate 2 and the bridge frame 3; the outer end of the bridge frame 3 is fixedly connected with a walking bracket 6, and one end of the walking bracket 6 is respectively provided with a guide wheel mounting seat; the front and rear ends of the lower plate are fixedly connected with side plates 4; the side plates 4 are connected to the lower plate by welding and produce welds, and the welds are located on the inner sides of the side plates 4; the lower part of the lower plate is fixedly connected with a square tube 1 which plays a reinforcing role; there are four square tubes 1 in total; a sprocket mounting seat 5 is fixedly connected to the side plate 4, and the sprocket mounting seat 5 and the guide wheel mounting seat are on the same horizontal plane.

[0016] One embodiment of the present invention is as follows:

[0017] A lower plate of a micro-excavator integrated structure includes a lower plate, which includes a motor mounting plate 2 and a bridge frame 3. Both sides of the lower plate are bent downward to form an integral structure of the motor mounting plate 2 and the bridge frame 3. By bending a whole plate, uniform force is guaranteed to the greatest extent, and the welding process is optimized without affecting the strength of use.

[0018] At the same time, due to the one-piece molding structure, the bridge frames 3 on both sides are completely symmetrical and the structural strength is large enough. The outer end of the bridge frame 3 is fixedly connected to a walking bracket 6, and one end of the walking bracket 6 is respectively provided with a guide wheel mounting seat, and the front and rear ends of the lower plate are fixedly connected to the side plates 4, and the side plates 4 are fixedly connected to the sprocket mounting seat 5. The sprocket mounting seat 5 and the guide wheel mounting seat are on the same horizontal plane, thereby maximally guaranteeing the vertical position relationship between the walking motor and the lower plate, ensuring that the driving sprocket and the guide wheel can be on the same plane, and greatly reducing the risk of the walking motor running off and the track falling off.

[0019] The side plate 4 is connected to the lower plate by welding, and the weld is located on the inner side of the side plate 4, which reduces the impact of the external weld on the appearance.

[0020] The lower part of the lower plate is fixedly connected with a square tube 1 for reinforcement. There are four square tubes 1 in total. The four square tubes 1 are used for reinforcement to ensure the use strength of the lower plate.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom plate of a micro-excavation integrated structure, characterized in that: It includes a lower plate, the lower plate includes a motor mounting plate and a bridge frame, and two sides of the lower plate are bent downward to form an integral structure of the motor mounting plate and the bridge frame; The outer end of the bridge frame is fixedly connected with a traveling bracket, and one end of the traveling bracket is respectively provided with a guide wheel mounting seat.

2. The bottom plate of the micro-excavation integrated structure according to claim 1 is characterized in that: The front and rear ends of the lower plate are both fixedly connected with side plates.

3. The bottom plate of the micro-excavation integrated structure according to claim 2 is characterized in that: The side plate and the lower plate are connected by welding to generate a weld, and the weld is located on the inner side of the side plate.

4. The bottom plate of the micro-excavation integrated structure according to claim 1 is characterized in that: The lower part of the lower plate is fixedly connected with a square tube which plays a reinforcing role.

5. The bottom plate of the micro-excavation integrated structure according to claim 4 is characterized in that: There are four square tubes in total.

6. The bottom plate of the micro-excavation integrated structure according to claim 2 is characterized in that: A sprocket mounting seat is fixedly connected to the side plate, and the sprocket mounting seat and the guide wheel mounting seat are on the same horizontal plane.

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