Walking frame of crawler excavator

Abstract

The utility model relates to the technical field of excavator equipment, and discloses a crawler excavator walking frame which comprises a chassis, a protection mechanism is fixedly connected to the bottom of the chassis, cleaning mechanisms are fixedly connected to the two sides of the chassis, and the protection mechanism comprises a pipeline box fixedly connected to the bottom of the chassis. The bottom of the pipeline box is in sliding connection with a protection bottom plate, the interior of the protection bottom plate is in sliding connection with a quick-release clamping assembly, and the quick-release clamping assembly comprises a positioning sliding rod. According to the pipeline box, the protection mechanism drives the positioning sliding rod through the overhaul press button, convenient drainage of the protection bottom plate is achieved, overhaul protection of pipelines in the pipeline box is facilitated, the maintenance difficulty is lowered, the service life of parts is prolonged, and equipment stability is guaranteed, and the cleaning mechanism drives a rotating disc and a connecting rod to operate through a cleaning motor, drives bristles to remove impurities on a crawler belt and reduces abrasion. The service life of the crawler and parts is prolonged, the walking performance is improved, and the running stability and reliability of the walking frame are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of excavator equipment technology, and in particular to a tracked excavator traveling frame. Background Technology

[0002] As a key component of construction machinery, the traveling frame bears the weight of the entire machine, ensuring stable operation and enabling flexible movement. Whether for material handling on construction sites or dealing with harsh road conditions in mining operations, the traveling frame is crucial. With the ever-increasing demands of various engineering scenarios, the requirements for the design and manufacturing of traveling frames are becoming increasingly stringent, highlighting their growing importance.

[0003] The tracked excavator's undercarriage is specifically designed for excavators, responsible for supporting the machine body and transmitting power, enabling it to operate in complex terrain. It mainly consists of tracks, drive wheels, idlers, track rollers, and support rollers. The tracks provide strong traction, the drive wheels handle power output, the idlers control the direction of travel, and the track rollers and support rollers support the machine body. During operation, power is transmitted through the drive wheels to the tracks, enabling the excavator to move forward, backward, and turn.

[0004] In the existing technology, the bottom of the excavator's undercarriage is equipped with many hydraulic lines and wires. When the undercarriage is running, mud, water and gravel splashed by the tracks can damage the lines. Furthermore, the inspection and maintenance of the bottom lines and wires are often complicated and difficult, resulting in long downtime. Frequent and complex operations can also shorten the service life of components and affect the stable operation of the equipment. Therefore, a tracked excavator undercarriage is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tracked excavator travel frame, which aims to improve the problems of easy damage to the bottom pipelines and difficult inspection and maintenance in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tracked excavator travel frame includes a chassis, a protective mechanism is fixedly connected to the bottom of the chassis, and a cleaning mechanism is fixedly connected to both sides of the chassis.

[0008] The protection mechanism includes a pipeline box fixedly connected to the bottom of the chassis, a protective base plate slidably connected to the bottom of the pipeline box, and a quick-release locking assembly slidably connected inside the protective base plate;

[0009] The quick-release locking assembly includes a positioning slide rod, the outer side of which is slidably connected to the inner side of the protective base plate. A guide post is fixedly connected to the inner side of the protective base plate, and the inner side of the positioning slide rod is slidably connected to the outer side of the guide post. A locking spring is sleeved on the outer side of the guide post.

[0010] As a further description of the above technical solution:

[0011] The cleaning mechanism includes a track frame, the outer side of which is fixedly connected to the outer side of the chassis, a cleaning box is fixedly connected to the outer side of the track frame, a drive assembly is fixedly connected to the outer side of the cleaning box, and a reciprocating scraping assembly is slidably connected to the inner side of the cleaning box.

[0012] As a further description of the above technical solution:

[0013] One end of the engaging spring is fixedly connected to the outside of the positioning slide rod, and the other end of the engaging spring is fixedly connected to the inside of the protective base plate.

[0014] As a further description of the above technical solution:

[0015] A maintenance button is slidably connected to the inner side of the protective base plate, and a return spring is sleeved on the outer side of the maintenance button. One end of the return spring is fixedly connected to the inner side of the protective base plate, and the other end of the return spring is fixedly connected to the outer side of the maintenance button. The return spring is in contact with the positioning slide rod.

[0016] As a further description of the above technical solution:

[0017] A drive tooth is fixedly connected to the outer side of the track frame, and a travel track is coupled to the outer side of the output end of the drive tooth. A slewing support is rotatably connected to the top of the chassis, a pusher support is fixedly connected to the outer side of the chassis, and a mudguard side plate is fixedly connected to the outer side of the drive tooth.

[0018] As a further description of the above technical solution:

[0019] The drive assembly includes a cleaning motor, which is fixedly connected to the outside of the cleaning box, and a rotating disk is fixedly connected to the output end of the cleaning motor.

[0020] As a further description of the above technical solution:

[0021] The reciprocating cleaning assembly includes an upper sliding rod, the outer side of which is slidably connected to the outer side of the cleaning box, and a rigid brush bristle is fixedly connected to the outer side of the upper sliding rod. A lower sliding rod is slidably connected to the inner side of the cleaning box, and the outer side of the lower sliding rod is fixedly connected to the outer side of the rigid brush bristle.

[0022] As a further description of the above technical solution:

[0023] A first cleaning link is rotatably connected to the outer side of the rotating disk, and a second cleaning link is rotatably connected to the outer side of the first cleaning link. A fixed column is fixedly connected to the inner side of the cleaning box. The inner side of the middle section of the second cleaning link is rotatably connected to the outer side of the fixed column. One end of the second cleaning link is rotatably connected to the outer side of the upper sliding rod, and the other end of the second cleaning link is rotatably connected to the outer side of the lower sliding rod.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, the protection mechanism drives the positioning slide rod to work through the maintenance button. When the maintenance button is pressed, the positioning slide rod moves upward against the spring force of the locking spring, so that the protective base plate can be pulled out for pipeline maintenance. After being released, the positioning slide rod springs back and locks the protective base plate, thereby realizing convenient and efficient maintenance and protection of the pipelines and wires at the bottom of the excavator, reducing maintenance difficulty, reducing downtime, extending the service life of components, and ensuring stable operation of the equipment.

[0026] 2. In this utility model, the cleaning mechanism drives the rotating disk and cleaning linkage through the cleaning motor. When the cleaning motor is started, the rotating disk rotates and drives the cleaning linkage, causing the upper and lower sliding rods to reciprocate, which drives the bristles to clean the track, effectively removing debris attached to the track, reducing wear, extending the service life of the track and related components, ensuring walking performance, and improving the stability and reliability of equipment operation. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a tracked excavator traveling frame proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of a protective base plate for the traveling frame of a tracked excavator according to the present invention;

[0029] Figure 3 This is a schematic diagram of the pipeline box of a tracked excavator traveling frame proposed in this utility model;

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the hard bristles of the tracked excavator's traveling frame proposed in this utility model.

[0032] Legend:

[0033] 1. Chassis; 2. Slewing support; 3. Pusher support; 4. Track frame; 5. Drive gear; 6. Travel track; 7. Mudguard side plate; 8. Pipe box; 9. Protective bottom plate; 10. Inspection button; 11. Return spring; 12. Positioning slide rod; 13. Engaging spring; 14. Guide column; 15. Cleaning box; 16. Cleaning motor; 17. Rotary disc; 18. Cleaning linkage one; 19. Cleaning linkage two; 20. Fixed column; 21. Upper slide rod; 22. Lower slide rod; 23. Hard bristles. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1 to 4 The present invention provides an embodiment of a tracked excavator travel frame, including a chassis 1, the chassis 1 being the basic load-bearing component of the tracked excavator travel frame, a protective mechanism being fixedly connected to the bottom of the chassis 1, and a cleaning mechanism being fixedly connected to both sides of the chassis 1.

[0036] The protective mechanism includes a cable box 8 fixedly connected to the bottom of the chassis 1. The cable box 8 is used to store and protect various pipes and wires at the bottom of the excavator. A protective base plate 9 is slidably connected to the bottom of the cable box 8 to protect the pipes and wires inside the cable box 8 from external collisions and damage. A quick-release locking assembly is slidably connected inside the protective base plate 9.

[0037] The quick-release locking assembly includes a positioning slide rod 12, which is an important component of the quick-release locking assembly. When the maintenance button 10 is pressed, the positioning slide rod 12 moves upward against the elastic force of the locking spring 13, disengaging from the groove of the pipeline box 8, allowing the protective base plate 9 to be pulled out. When the maintenance button 10 is released, the positioning slide rod 12 moves downward under the elastic force of the locking spring 13, locking into the groove of the pipeline box 8, thus locking the protective base plate 9. The outer side of the positioning slide rod 12 is slidably connected to the inner side of the protective base plate 9. A guide post 14 is fixedly connected to the inner side of the protective base plate 9. The guide post 14 is used to guide the movement of the positioning slide rod 12 to ensure the accurate movement trajectory of the positioning slide rod 12. The inner side of the positioning slide rod 12 is slidably connected to the outer side of the guide post 14. A locking spring 13 is sleeved on the outer side of the guide post 14. The locking spring 13 provides outward elastic force to the positioning slide rod 12, so that the positioning slide rod 12 can quickly be locked into the groove of the pipeline box 8 after the protective base plate 9 is installed in place, thereby realizing the rapid positioning and fixing of the protective base plate 9.

[0038] One end of the engaging spring 13 is fixedly connected to the outside of the positioning slide rod 12, and the other end of the engaging spring 13 is fixedly connected to the inside of the protective base plate 9.

[0039] A maintenance button 10 is slidably connected to the inner side of the protective base plate 9. The maintenance button 10 is used to control the unlocking and locking of the quick-release locking assembly. Under normal conditions, the maintenance button 10 is in the pop-out state under the action of the return spring 11. When maintenance is required, the operator presses the maintenance button 10, which moves inward against the elastic force of the return spring 11 and pushes the positioning slide rod 12 upward to unlock the quick-release locking assembly. The outer side of the maintenance button 10 is fitted with a return spring 11. The return spring 11 can quickly return the maintenance button 10 to its original position after the operator releases it. At the same time, the positioning slide rod 12 is re-engaged into the groove of the pipeline box 8 under the action of the locking spring 13 to lock the protective base plate 9. One end of the return spring 11 is fixedly connected to the inner side of the protective base plate 9, and the other end of the return spring 11 is fixedly connected to the outer side of the maintenance button 10. The return spring 11 is in contact with the positioning slide rod 12.

[0040] Reference Figure 1 , Figure 2 and Figure 5 The cleaning mechanism includes a track frame 4, which is an important component of the traveling frame and plays a key role in supporting and installing the tracks and related traveling components. The outer side of the track frame 4 is fixedly connected to the outer side of the chassis 1. A cleaning box 15 is fixedly connected to the outer side of the track frame 4 for installing and protecting the cleaning motor 16 and the reciprocating scraping assembly, thereby realizing the cleaning function of the traveling track 6. A drive assembly is fixedly connected to the outer side of the cleaning box 15, and a reciprocating scraping assembly is slidably connected to the inner side of the cleaning box 15.

[0041] The outer side of the track frame 4 is fixedly connected to the drive tooth 5, which is the core component that provides power to the track. The outer side of the output end of the drive tooth 5 is coupled to the travel track 6. The travel track 6 is installed between the drive tooth 5, the guide wheel, the track roller and the support roller. It is the key component for the excavator to contact the ground and achieve movement. The top of the chassis 1 is rotatably connected to the slewing support 2. The slewing support 2 is the key component that enables the upper structure of the excavator to rotate flexibly relative to the lower travel frame. The outer side of the chassis 1 is fixedly connected to the pusher support 3. The pusher support 3 is mainly used to install and support the pusher device. The outer side of the drive tooth 5 is fixedly connected to the mudguard side plate 7. The mudguard side plate 7 can prevent mud, sand and other debris from splashing onto the travel components during movement, affecting the normal operation and service life of the components.

[0042] The drive assembly includes a cleaning motor 16, which provides power to the reciprocating scraping assembly. The outer side of the cleaning motor 16 is fixedly connected to the outer side of the cleaning box 15, and the output end of the cleaning motor 16 is fixedly connected to a rotating disk 17.

[0043] The reciprocating cleaning assembly includes an upper sliding rod 21, the outer side of which is slidably connected to the outer side of the cleaning box 15. A hard brush bristle 23 is fixedly connected to the outer side of the upper sliding rod 21. The hard brush bristle 23 has good wear resistance and flexibility and is used to remove dirt, sand and other debris attached to the track 6. It can effectively remove debris and avoid damage to the track surface. A lower sliding rod 22 is slidably connected to the inner side of the cleaning box 15. The outer side of the lower sliding rod 22 is fixedly connected to the outer side of the hard brush bristle 23.

[0044] A cleaning link 18 is rotatably connected to the outer side of the rotating disk 17. A cleaning link 29 is rotatably connected to the outer side of the cleaning link 18. A fixing post 20 is fixedly connected to the inner side of the cleaning box 15. The fixing post 20 is used to support and fix the middle section of the cleaning link 29, so that it swings around the fixing post 20. The inner side of the middle section of the cleaning link 29 is rotatably connected to the outer side of the fixing post 20. One end of the cleaning link 29 is rotatably connected to the outer side of the upper sliding rod 21, and the other end of the cleaning link 29 is rotatably connected to the outer side of the lower sliding rod 22.

[0045] Working principle: When it is necessary to inspect the pipes and wires at the bottom of the tracked excavator, press the inspection button 10. The inspection button 10 pushes the positioning slide rod 12 upward, causing it to overcome the elastic force of the engaging spring 13 and move upward along the guide post 14. After the positioning slide rod 12 is fully inserted into the protective base plate 9, the protective base plate 9 can be pulled out along the slide groove of the pipeline box 8, exposing the pipes inside the pipeline box 8 for easy inspection. After the inspection is completed, put the protective base plate 9 back along the slide groove at the bottom of the pipeline box 8. After it is in place, the positioning slide rod 12 slides outward under the elastic force of the engaging spring 13 until it slides into the groove inside the pipeline box 8 and contacts the inspection button 10, thus achieving positioning and engagement of the protective base plate 9 and completing the quick installation.

[0046] When the walking frame is moving, mud, sand and other debris inevitably accumulate on the outer and inner sides of the walking track 6. At this time, the cleaning motor 16 is started, which drives the rotating disk 17 to rotate. The fixed rotating shaft on the outer side of the rotating disk 17 drives the first cleaning link 18 to rotate. The first cleaning link 18 drives the second cleaning link 19 to swing around the fixed column 20. The swing of the second cleaning link 19 causes the upper sliding rod 21 and the lower sliding rod 22 at both ends to start reciprocating along the sliding groove inside the cleaning box 15. The reciprocating motion of the upper sliding rod 21 and the lower sliding rod 22 drives the hard bristles 23 to continuously clean the inner and outer sides of the walking track 6, so that the mud and sand attached to the walking track 6 are removed and fall off, reducing the wear of the walking track 6, extending the service life of the components, and preventing the accumulation of debris from affecting the walking performance.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A walking frame for a crawler excavator comprising a chassis (1), characterised in that: The bottom of the chassis (1) is fixedly connected with a protection mechanism, and both sides of the chassis (1) are fixedly connected with a cleaning mechanism; The protection mechanism comprises a pipeline box (8) fixedly connected to the bottom of the chassis (1), a protection bottom plate (9) slidably connected to the bottom of the pipeline box (8), and a quick-release clamping assembly slidably connected to the inside of the protection bottom plate (9); The quick-release clamping assembly comprises a positioning sliding rod (12) slidably connected to the inside of the protection bottom plate (9), a guide column (14) fixedly connected to the inside of the protection bottom plate (9), and a clamping spring (13) sleeved to the outside of the guide column (14).

2. A track-type excavator undercarriage according to claim 1, characterised in that: The cleaning mechanism comprises a track frame (4) fixedly connected to the outside of the chassis (1), a cleaning box (15) fixedly connected to the outside of the track frame (4), a driving assembly fixedly connected to the outside of the cleaning box (15), and a reciprocating scraping assembly slidably connected to the inside of the cleaning box (15).

3. A track-type excavator undercarriage according to claim 1, characterized in that: One end of the clamping spring (13) is fixedly connected to the outside of the positioning sliding rod (12), and the other end of the clamping spring (13) is fixedly connected to the inside of the protection bottom plate (9).

4. The track-type excavator undercarriage of claim 1, wherein: The inside of the protection bottom plate (9) is slidably connected with an inspection press button (10), the outside of the inspection press button (10) is sleeved with a return spring (11), one end of the return spring (11) is fixedly connected to the inside of the protection bottom plate (9), the other end of the return spring (11) is fixedly connected to the outside of the inspection press button (10), and the return spring (11) is in contact with the positioning sliding rod (12).

5. A track-type excavator undercarriage according to claim 2, characterized in that: The outside of the track frame (4) is fixedly connected with a driving gear (5), the output end outside of the driving gear (5) is coupled with a traveling track (6), the top of the chassis (1) is rotatably connected with a rotary support seat (2), the outside of the chassis (1) is fixedly connected with a push shovel support (3), and the outside of the driving gear (5) is fixedly connected with a mud side plate (7).

6. A track-type excavator undercarriage according to claim 2, characterized in that: The driving assembly comprises a cleaning motor (16) fixedly connected to the outside of the cleaning box (15), and a rotating disc (17) fixedly connected to the output end of the cleaning motor (16).

7. A track-type excavator undercarriage according to claim 6, characterised in that: The reciprocating scraping assembly comprises an upper sliding rod (21) slidably connected to the outside of the cleaning box (15), a hard bristle (23) fixedly connected to the outside of the upper sliding rod (21), a lower sliding rod (22) slidably connected to the inside of the cleaning box (15), and the outside of the lower sliding rod (22) is fixedly connected to the outside of the hard bristle (23).

8. A track-type excavator undercarriage according to claim 7, characterised in that: The outer side of the rotating disc (17) is rotationally connected with a cleaning connecting rod one (18), the outer side of the cleaning connecting rod one (18) is rotationally connected with a cleaning connecting rod two (19), the inner side of the cleaning tank (15) is fixedly connected with a fixed column (20), the middle section of the inner side of the cleaning connecting rod two (19) is rotationally connected with the outer side of the fixed column (20), one end of the cleaning connecting rod two (19) is rotationally connected with the outer side of the upper slide rod (21), the other end of the cleaning connecting rod two (19) is rotationally connected with the outer side of the lower slide rod (22).

Images