Chassis device with traction device and engineering machinery

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By installing a symmetrically arranged traction device on the drop frame of the mining hydraulic excavator, the problem of inconsistent wire wear and traction direction during the pulling process in the prior art is solved, and a more efficient and reliable pulling operation is achieved .

CN222512266UActive Publication Date: 2025-02-21XUZHOU XCMG MINING MACHINERY CO LTD

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Patent Information

Application Number: CN202421297548.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-07
Publication Date: 2025-02-21
Estimated Expiration: 2034-06-07

AI Technical Summary

Technical Problem

The existing mining hydraulic excavators have a lack of equipment specially used for dragging, which leads to friction and wear of the steel cable and the edges of the frame during the dragging process, and the traction direction is inconsistent with the tracking direction, affecting the drag efficiency.

Method used

Design a chassis device with a traction device, including installing two slewing support symmetrically arranged traction devices on the side plate of the detachment frame, each traction device with a pulling circular hole, which is fixed to the vehicle by circumferential welding of the inner and outer rings. On the rack, make sure the traction force is parallel to the direction of the track.

Benefits of technology

Effectively avoid friction and wear between the edges of the steel cable and the frame structure, ensure that the traction direction is consistent with the track direction, improve the efficiency and reliability of the towing operation, and reduce the wear of the steel cable without the tow hook. .

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Abstract

The utility model discloses a chassis device with a traction device and engineering machinery. The chassis device comprises a lower vehicle frame, a crawler belt, a guide wheel, a driving wheel and the traction device, a slewing bearing is mounted in the center of the lower vehicle frame, and a crawler walking mechanism consisting of a crawler, a guide wheel and a driving wheel is mounted on each of the two sides of the lower vehicle frame; the two traction devices are fixed to a side plate, facing the vehicle advancing direction, of the lower vehicle frame, and the two traction devices are symmetrically arranged about the center line, in the vehicle advancing direction, of the slewing bearing and used for achieving the fact that traction force is parallel to the walking direction of the crawler walking mechanism, and the traction operation efficiency is improved. And in the traction operation process, the steel cable cannot be subjected to frictional wear with the edges of structural parts such as a frame, traction structural parts such as the steel cable are effectively protected, and the traction reliability is guaranteed.

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Description

Technical Field

[0001] The utility model relates to a chassis device with a traction device, belonging to the technical field of engineering machinery. Background Art

[0002] The undercarriage walking part of a mining hydraulic excavator is generally crawler-type, and the undercarriage includes a frame, longitudinal beams, drive wheels, guide wheels, crawlers and other structures. During open-pit mine operations, due to factors such as engine and hydraulic system failures, terrain and rainy days affecting ground materials and excavated materials, there is a situation where the traction force is insufficient during the movement of the excavator, and vehicle towing is required to get the vehicle out of trouble or transfer.

[0003] The current vehicle towing connection requires tools such as hooks and steel cables to be fixed to the towing holes on the vehicle's lower frame for towing operations. However, the current lower frame lacks a device specifically for towing. Generally, the lifting holes on the lower frame for assembly and lifting and the process holes on structural parts such as longitudinal beams are used for fixed towing. As a result, during the towing process, the steel cables will interfere with and wear the edges of the frame. In addition, since the holes selected for towing may be asymmetrical with the center of rotation, the direction of the traction force during towing may have an angle with the direction of the track, affecting the towing efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a chassis device with a traction device. During the traction operation, the steel cable will not rub against the edges of frame components such as the vehicle frame, thereby effectively protecting traction tools such as the steel cable and ensuring traction reliability.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides a chassis device with a traction device, comprising:

[0007] The lower frame has a slewing bearing installed in the center and a crawler walking mechanism installed on each side;

[0008] Two traction devices are fixed on the side plate of the lower frame facing the forward direction of the vehicle, and the two traction devices are symmetrically arranged with the center line of the slewing support in the forward direction of the vehicle, so as to realize the traction force parallel to the traveling direction of the crawler walking mechanism.

[0009] In some embodiments, the traction device comprises:

[0010] A mounting portion, fixed to the side plate of the lower vehicle frame;

[0011] The connecting part is fixed on the mounting part and is used to be connected with the traction tool and to transmit the traction force to the lower vehicle frame.

[0012] In some embodiments, the cross-section of the mounting portion is a rectangular frame structure; the connecting portion is composed of two corresponding side panels in the mounting portion, each of which extends outward to form a triangular plate with a towing circular hole, and the towing circular holes on the two triangular plates are coaxially arranged.

[0013] In some embodiments, the center lines of the two towing circular holes are perpendicular to the top plate or the bottom plate of the lower frame, and the towing device is fixed to the side plate of the lower frame by inner and outer circle circumferential welding.

[0014] In some embodiments, the towing circular hole on the connecting portion and its upper and lower edges are chamfered to reduce wear on the steel cable of the towing tool inserted into the towing circular hole.

[0015] In some embodiments, the mounting portion and the connecting portion are integrally cast or welded together; the annular contour of the side panel of the traction device facing the lower vehicle frame is a planar structure, which is convenient for fitting together with the side panel of the lower vehicle frame; the annular contour of the traction device facing the traction tool is chamfered, and an arc transition is performed at the bend.

[0016] In some embodiments, the mounting portion, excluding the other two side panels provided with the connecting portion, is a gradient cross-section panel, and the overall structure is narrow in the middle and wide in the left and right portions.

[0017] In some embodiments, two traction devices are provided on the side plate of the lower frame facing the rearward direction of the vehicle, and the two traction devices are symmetrically arranged with the center line of the slewing support in the rearward direction of the vehicle, so as to realize the traction force being parallel to the traveling direction of the crawler walking mechanism.

[0018] In some embodiments, a plurality of lifting lugs are installed on the top plate of the lower frame.

[0019] In a second aspect, the utility model provides an engineering machine, comprising the above-mentioned chassis device with a traction device.

[0020] Beneficial effects of the utility model:

[0021] 1. The traction device is equipped with a towing circular hole. The traction device is integrally welded to the side plate of the lower frame. Two traction devices form a group and are arranged symmetrically on the center line of the vehicle's forward direction with a slewing bearing to ensure that after the towing hook and the steel cable of equal length are fixed, the direction of the traction force is consistent with the direction of travel of the vehicle track, thereby improving the traction operation efficiency.

[0022] 2. The cross-section of the traction device is a rounded rectangular structure, which is fixed to the side panel of the lower frame by means of inner and outer circle circular welding. The structure has good force-bearing strength and can withstand tensile stress or compressive stress in multiple directions on all sides.

[0023] 3. After the towing hook and steel cable are installed on the traction device, compared with the original traction using the lifting holes of the lower frame or the process holes on the longitudinal beam, the steel cable will not rub and wear against the edges of structural parts such as the frame during the traction operation, effectively protecting the traction structural parts such as the steel cable and ensuring the traction reliability.

[0024] 4. The round hole and the outer extension of the towing machine have rounded corners, so towing can be carried out when there is no towing hook at the operation site but only a steel cable, which reduces the wear on the steel cable and ensures safe and stable towing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0026] In the attached picture:

[0027] Figure 1 It is a schematic diagram of a chassis device with a traction device of the utility model;

[0028] Figure 2 This is a welding schematic diagram of the traction device of the utility model;

[0029] Figure 3 This is a schematic diagram of the oblique upward structure of the traction device of the utility model;

[0030] Figure 4 It is a schematic diagram of the oblique downward structure of the traction device of the utility model.

[0031] Figures and symbols: 1. guide wheel; 2. lower frame; 3. lifting eye; 4. driving wheel; 5. traction device; 6. side plate; 51. mounting part; 52. connecting part; 53. towing round hole.

[0032] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 As shown, a chassis device with a traction device includes an undercarriage frame 2, a crawler track, a guide wheel 1, a driving wheel 4 and a traction device 5; a slewing bearing is installed at the center of the undercarriage frame 2, and a crawler walking mechanism consisting of a crawler track, a guide wheel 1 and a driving wheel 4 is installed on each side; two traction devices 5 are fixed on the side plates of the undercarriage frame 2 facing the forward direction of the vehicle, and the two traction devices 5 are symmetrically arranged with the center line of the slewing bearing in the forward direction of the vehicle, so as to realize that the traction force is parallel to the walking direction of the crawler walking mechanism, improve the traction operation efficiency, and during the traction operation, the steel cable will not rub and wear against the edges of structural parts such as the frame, effectively protect the traction structural parts such as the steel cable and ensure the traction reliability.

[0037] like Figure 2 , Figure 3 , Figure 4 As shown, the traction device 5 includes a mounting portion 51 and a connecting portion 52; the mounting portion 51 is fixed to the side plate of the lower vehicle frame 2; the connecting portion 52 is fixed to the mounting portion 51, and is used to be connected to the traction tool, and is used to transmit the traction force to the lower vehicle frame 2.

[0038] For further solutions, please refer to Figure 2 , Figure 3 , Figure 4 As shown, the cross section of the mounting portion 51 is a rectangular frame structure; the connecting portion 52 is composed of two corresponding side panels in the mounting portion 51 extending outward to form a triangular plate with a towing circular hole 53, and the towing circular holes 53 on the two triangular plates are coaxially arranged.

[0039] For further solutions, please refer to Figure 2As shown, the center lines of the two towing circular holes 53 are perpendicular to the top plate or bottom plate of the lower frame 2, and the traction device 5 is fixed to the side plate of the lower frame 2 by inner and outer circle circumferential welding. The structure has good force strength and can withstand tensile stress and compressive stress in all directions around.

[0040] For further solutions, please refer to Figure 2 , Figure 3 , Figure 4 As shown, the towing circular hole 53 on the connecting portion 52 and its upper and lower edges are chamfered, so that towing can be performed first when there is no towing hook at the work site but only a steel cable, thereby reducing wear on the steel cable and ensuring safe and stable towing.

[0041] For further solutions, please refer to Figure 2 , Figure 3 , Figure 4 As shown, the mounting portion 51 and the connecting portion 52 are integrally cast or welded together; the annular contour of the traction device 5 facing the side plate of the lower vehicle frame 2 is a planar structure, which is convenient for fitting together with the side plate of the lower vehicle frame 2; the annular contour of the traction device 5 facing the traction tool is chamfered, and an arc transition is performed at the bend.

[0042] For further solutions, please refer to Figure 2 , Figure 3 , Figure 4 As shown, the mounting portion 51 is a tapered cross-section plate except for the two side plates provided with the connecting portion 52, and the overall structure is narrow in the middle and wide in the left and right parts.

[0043] A further solution is to provide two traction devices on the side panels of the lower frame 2 facing the rearward direction of the vehicle, and the two traction devices are symmetrically arranged with the center line of the slewing support in the rearward direction of the vehicle, so as to achieve traction force parallel to the traveling direction of the crawler walking mechanism; through the four traction devices on the front and rear side panels, it is possible to decide from which direction to tow on site according to actual needs.

[0044] Further solutions, such as Figure 1 As shown, a plurality of lifting lugs 3 are installed on the top plate of the lower vehicle frame 2 .

[0045] The utility model also provides an engineering machine, comprising the above-mentioned chassis device with a traction device.

[0046] Preferably, the engineering machinery includes a mining excavator.

[0047] In summary, the utility model innovatively designs a chassis device with a traction device, the traction device has a towing circular hole, the traction device is integrally welded to the side plate of the lower vehicle frame, two traction devices form a group, and are symmetrically arranged on the center line of the slewing bearing in the forward direction of the vehicle, so as to ensure that after the towing hook and the steel cable of equal length are fixed, the direction of the traction force is consistent with the direction of travel of the vehicle track, thereby improving the traction operation efficiency; the cross-section of the traction device is a rounded rectangular structure, which is fixed to the side plate of the lower vehicle frame by inner and outer circle circumferential welding, and has good structural force strength, and can withstand tensile stress or compressive stress in multiple directions around; after the towing hook and the steel cable are installed on the traction device, compared with the original towing using the hoisting hole of the lower vehicle frame or the process hole on the longitudinal beam for towing, the steel cable will not rub and wear with the edges of structural parts such as the frame during the towing operation, effectively protecting the traction structural parts such as the steel cable and ensuring the reliability of towing; the towing circular hole and the outer extension have rounded corners, so that towing can be carried out when there is no towing hook but only steel cable at the operation site, thereby reducing the wear on the steel cable and ensuring the safety and stability of towing.

[0048] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0049] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0050] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A chassis device with a traction device, characterized in that: include: The lower frame has a slewing bearing installed in the center and a crawler walking mechanism installed on each side; Two traction devices are fixed on the side plate of the lower frame facing the forward direction of the vehicle, and the two traction devices are symmetrically arranged with the center line of the slewing support in the forward direction of the vehicle, so as to realize the traction force parallel to the traveling direction of the crawler walking mechanism.

2. A chassis device with a traction device according to claim 1, characterized in that: The traction device comprises: A mounting portion, fixed to the side plate of the lower vehicle frame; The connecting part is fixed on the mounting part and is used to be connected with the traction tool and to transmit the traction force to the lower vehicle frame.

3. A chassis device with a traction device according to claim 2, characterized in that: The cross section of the mounting portion is a rectangular frame structure; The connecting portion is formed by two corresponding side plates in the mounting portion extending outwards to form a triangular plate with a towing circular hole, and the towing circular holes on the two triangular plates are coaxially arranged.

4. A chassis device with a traction device according to claim 3, characterized in that: The center lines of the two towing circular holes are perpendicular to the top plate or the bottom plate of the lower frame, and the towing device is fixed on the side plate of the lower frame by inner and outer circle circumferential welding.

5. The chassis device with a traction device according to claim 3, characterized in that: The towing circular hole on the connecting portion and its upper and lower edges are chamfered to reduce wear on the steel cable of the towing tool inserted into the towing circular hole.

6. A chassis device with a traction device according to claim 3, characterized in that: The mounting portion and the connecting portion are integrally cast or welded together; The annular contour of the side plate of the traction device facing the lower frame is a flat structure, which is convenient for fitting together with the side plate of the lower frame; The traction device is chamfered at the annular contour facing the traction tool, and an arc transition is performed at the bending part.

7. A chassis device with a traction device according to claim 3, characterized in that: The mounting portion is a plate with a gradient cross-section except for the other two side plates provided with the connecting portion, and has an overall structure of being narrow in the middle and wide in the left and right parts.

8. The chassis device with a traction device according to claim 1, characterized in that: Two traction devices are provided on the side plates of the lower frame facing the backward direction of the vehicle, and the two traction devices are symmetrically arranged with the center line of the slewing support in the backward direction of the vehicle, so as to realize the traction force being parallel to the traveling direction of the crawler walking mechanism.

9. The chassis device with a traction device according to claim 1, characterized in that: A plurality of lifting lugs are installed on the top plate of the lower vehicle frame.

10. An engineering machine, characterized in that: A chassis device with a traction device comprising any one of claims 1 to 9.