Chassis assembly of mining explosion-proof excavator

Abstract

The utility model relates to a mining explosion-proof excavator chassis assembly, which belongs to the technical field of excavators and comprises a chassis, two crawlers are connected onto the chassis and distributed front and back, two auxiliary mechanisms are arranged on the chassis and symmetrically arranged left and right, and the two auxiliary mechanisms are arranged on the chassis. The chassis moves on the track through two auxiliary mechanisms; the auxiliary mechanism comprises a connecting frame, the connecting frame is obliquely arranged, two rolling wheels are arranged on the connecting frame, the two rolling wheels are symmetrically arranged front and back, a power system is arranged on the connecting frame and drives the rolling wheels to rotate, and the connecting frame is hinged to the chassis; the excavator can normally run on the ground through the crawler belt, the crawler belt is separated from the ground and the track after the connecting frame is driven to rotate and the chassis ascends, and then the excavator moves on the track through rotation of the idler wheels on the track, so that the running speed of the excavator is increased.

Description

Technical Field

[0001] The utility model relates to a chassis assembly of a mine explosion-proof excavator, belonging to the technical field of excavators. Background Art

[0002] Mine excavators are heavy machinery dedicated to mines and construction sites, mainly used for excavating soil, rocks and ores. They usually have powerful power and high efficiency, and are suitable for large-scale earthwork projects and mineral mining.

[0003] Chinese utility model patent with publication number CN212656285U discloses a double-rotation crawler-type mine excavator. A first rotation system is arranged on the frame in front of the control cab. The first rotation system is axially connected to the bottom of the first support beam. The upper part of the first support beam is axially connected to the piston end of the first hydraulic cylinder. The first hydraulic cylinder is fixed on the first rotation system. The first cross beam is axially connected to the second cross beam. The piston end of the second hydraulic cylinder is axially connected to the rotating shaft of the second cross beam. The second hydraulic cylinder is fixed on the first cross beam. The lower end of the rotating beam is axially connected to the second cross beam. The upper end of the rotating beam is axially connected to the piston end of the third hydraulic cylinder. A second rotation system is arranged on the rotating beam. A grab bucket is fixed on the second rotation system. The advantages of this utility model are: Since the first rotation system can ensure the rotation of the first cross beam relative to the frame and the rotation of the second rotation system relative to the rotating beam, multi-dimensional and multi-angle adjustment can be achieved, meeting different geological construction requirements. However, in the prior art, when a mine excavator travels in a mine, due to the small space in the mine, the traveling speed of the mine excavator is limited. Moreover, when there are bends in the passage in the mine, it will also affect the traveling speed of the mine excavator.

[0004] Therefore, there is a need for a chassis assembly of a mine explosion-proof excavator to improve the traveling speed of the excavator. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: In order to overcome the deficiencies of the prior art, to provide a chassis assembly of a mine explosion-proof excavator that can improve the traveling speed.

[0006] The technical solution adopted by the utility model to solve the above problems is: A chassis assembly of a mine explosion-proof excavator includes a chassis. Two crawlers are connected to the chassis, and the two crawlers are distributed front and back. Two auxiliary mechanisms are arranged on the chassis, and the two auxiliary mechanisms are arranged symmetrically left and right. The chassis realizes movement on the track through the two auxiliary mechanisms.

[0007] The auxiliary mechanism includes a connecting frame which is arranged obliquely. Two rollers are provided on the connecting frame and are symmetrically arranged front and back. A power system is provided on the connecting frame, and the power system drives the rollers to rotate. The connecting frame is hinged to the chassis, and a lifting oil cylinder is connected to the connecting frame. One end of the lifting oil cylinder is hinged to the chassis, and the other end is hinged to the connecting frame.

[0008] Preferably, the auxiliary mechanism further includes two limiting components which are symmetrically arranged front and back, and the limiting components are used to position the connecting frame and the track.

[0009] Preferably, the limiting component includes a locking claw and a hinge seat. The hinge seat is fixedly arranged on the connecting frame. The two ends of the locking claw are distributed up and down. The middle end of the locking claw is hinged to the hinge seat through a hinge shaft which is parallel to the left and right direction. An adjusting unit is connected to the upper end of the hinge shaft, and the adjusting unit is used to adjust the angle of the locking claw.

[0010] Preferably, a convex block is formed by the convexity at the lower end of the locking claw.

[0011] Preferably, the track is of I-beam steel structure.

[0012] Preferably, the adjusting unit includes an adjusting rod and a connecting rod. The connecting rod is fixedly arranged on the locking claw. One end of the adjusting rod is hinged to the hinge seat, and the other end of the adjusting rod passes through the connecting rod. Two locking nuts are threadedly connected to the adjusting rod, and the two locking nuts respectively abut against the front and back sides of the connecting rod.

[0013] Preferably, a flange is provided on the roller.

[0014] Preferably, the flange and the roller are of an integrally formed structure.

[0015] Preferably, the two connecting frames form a V-shaped and an inverted V-shaped structure.

[0016] Preferably, a rotating seat is provided on the chassis.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] The chassis assembly of the mine explosion-proof excavator of the present utility model can not only travel normally on the ground through the crawler, but also, after driving the connecting frame to rotate and lifting the chassis, separate the crawler from the ground and the track, and then realize the movement of the excavator on the track through the rotation of the rollers on the track, thereby improving the traveling speed of the excavator. Description of the Drawings

[0019] Figure 1Stereogram of a chassis assembly of a mine - used explosion - proof excavator of the present utility model;

[0020] Figure 2 Front view of a chassis assembly of a mine - used explosion - proof excavator of the present utility model;

[0021] Figure 3 Top view of a chassis assembly of a mine - used explosion - proof excavator of the present utility model;

[0022] Figure 4 Left view of a chassis assembly of a mine - used explosion - proof excavator of the present utility model;

[0023] Figure 5 Schematic diagram of the connection structure between the auxiliary mechanism and the chassis;

[0024] Figure 6 Schematic diagram of the structure of the auxiliary mechanism;

[0025] Figure 7 Schematic diagram of the structure of the limit component.

[0026] Wherein:

[0027] Chassis 1, crawler 2, auxiliary mechanism 3, track 4, rotating seat 5;

[0028] Connecting frame 31, roller 32, lifting oil cylinder 33, limit component 34, flange 35;

[0029] Locking claw 341, hinge seat 342, hinge shaft 343, adjusting unit 344, convex block 345;

[0030] Adjusting rod 3441, connecting rod 3442, locking nut 3443. Specific implementation mode

[0031] As Figure 1 shown, a chassis assembly of a mine - used explosion - proof excavator in this embodiment includes a chassis 1. Two crawlers 2 are connected to the chassis 1, and the two crawlers 2 are distributed front and back. Two auxiliary mechanisms 3 are arranged on the chassis 1, and the two auxiliary mechanisms 3 are symmetrically arranged about the left - right of the chassis 1. The chassis 1 realizes movement on the track 4 through the two auxiliary mechanisms 3. A rotating seat 5 is arranged on the chassis 1, and the rotating seat 5 is used for installing the cab of the excavator;

[0032] During operation, the chassis 1 is installed on the excavator body, and the movement of the chassis 1 in the mine is realized through the crawlers 2, that is, the movement of the excavator is realized. In addition, in order to facilitate the transportation of minerals in the mine, two tracks 4 arranged side by side front and back are laid in the mine. At this time, the chassis 1 can be lifted by the auxiliary mechanism 3, and the crawlers 2 are lifted to generate a gap with the ground. At the same time, both auxiliary mechanisms 3 are connected to the tracks 4, and the chassis 1 is driven by the auxiliary mechanism 3 to drive the operator's cab to move on the tracks 4, thereby increasing the driving speed of the excavator;

[0033] The auxiliary mechanism 3 includes a connecting frame 31, the connecting frame 31 is arranged obliquely, two rollers 32 are arranged on the connecting frame 31, the two rollers 32 are symmetrically arranged front and back, a power system is arranged on the connecting frame 31, and the power system drives the rollers 32 to rotate. The power system can be a motor. The connecting frame 31 is hinged to the chassis 1, and a lifting oil cylinder 33 is connected to the connecting frame 31. One end of the lifting oil cylinder 33 is hinged to the chassis 1, and the other end of the lifting oil cylinder 33 is hinged to the connecting frame 31. When it is necessary to travel on the tracks 4, the two rollers 32 of the same connecting frame 31 are respectively located on the two tracks 4. Subsequently, the lifting oil cylinder 33 is started to make the connecting frame 31 rotate around the hinge point between the connecting frame 31 and the chassis 1, and the rotation directions of the two connecting frames 31 are opposite. During the rotation of the connecting frame 31, the rollers 32 are driven to move on the tracks 4. In addition, through the rotation of the two connecting frames 31, the connecting frame 31 supports the chassis 1 to move upward and drives the crawlers 2 to separate from the ground. At the same time, there is a gap between the crawlers 2 and the tracks 4. After that, the power system drives the rollers 32 to rotate, so that each roller 32 rotates on the tracks 4, that is, the excavator moves on the tracks 4;

[0034] The two connecting frames 31 form a V-shaped and an inverted V-shaped structure;

[0035] The auxiliary mechanism 3 further includes two limiting components 34, the two limiting components 34 are symmetrically arranged front and back, and the two limiting components 34 correspond to the two tracks 4 one by one. The limiting component 34 is used to realize the positioning between the connecting frame 31 and the tracks 4;

[0036] The position-limiting assembly 34 includes a locking claw 341 and a hinge seat 342. The hinge seat 342 is fixedly arranged on the connecting frame 31. The two ends of the locking claw 341 are distributed vertically. The middle end of the locking claw 341 is hinged to the hinge seat 342 through a hinge shaft 343. The hinge shaft 343 is parallel to the left-right direction. The upper end of the hinge shaft 343 is connected with an adjusting unit 344. The adjusting unit 344 is used to adjust the angle of the locking claw 341. Before the roller 32 needs to rotate to enable the excavator to move on the track 4, the adjusting unit 344 is used to make the locking claw 341 rotate around the hinge shaft 343, that is, to realize the adjustment of the angle of the locking claw 341. In fact, the track 4 is of I-beam structure, that is, concave portions are provided on both the front and rear sides of the track 4. Through the rotation of the locking claw 341, the rear side wall of the front locking claw 341 is attached to the front side of the front track 4, and the front side wall of the rear locking claw 341 is attached to the rear side of the rear track 4. In this way, the positioning of the connecting frame 31 in the front-rear direction is realized, that is, the positioning of the excavator in the front-rear direction is realized;

[0037] A convex block 345 is formed by the downward protrusion of the lower end of the locking claw 341. When the connecting frame 31 realizes the positioning in the front-rear direction through the locking claw 341 and the track 4, the rear side wall and the top of the front convex block 345 are respectively attached to the front inner wall and the upper inner wall of the front concave portion on the front track 4, and the front side wall and the top of the rear convex block 345 are respectively attached to the rear inner wall and the upper inner wall of the rear concave portion on the rear track 4. That is, the positioning of the connecting frame 31 in the front-rear direction and the upward direction is realized, that is, the positioning of the excavator in the front-rear direction and the upward direction is realized;

[0038] The adjusting unit 344 includes an adjusting rod 3441 and a connecting rod 3442. The connecting rod 3442 is fixedly arranged on the locking claw 341. One end of the adjusting rod 3441 is hinged to the hinge seat 342. The other end of the adjusting rod 3441 passes through the connecting rod 3442. Two locking nuts 3443 are threadedly connected to the adjusting rod 3441. The two locking nuts 3443 respectively abut against the front and rear sides of the connecting rod 3442. When the angle of the locking claw 341 needs to be adjusted, the positions of the two locking nuts 3443 on the adjusting rod 3441 are adjusted, and then the connecting rod 3442 can be pushed to drive the locking claw 341 to rotate around the hinge shaft 343. After the adjustment is completed, the nuts are tightened and abutted against the connecting rod 3442;

[0039] A flange 35 is provided on the roller 32. During the movement of the roller 32 on the track 4, the flange 35 on the front roller 32 abuts against the rear side wall of the front track 4, and the flange 35 on the rear roller 32 abuts against the front side wall of the rear track 4. Of course, it is also possible that the flange 35 on the front roller 32 abuts against the front side wall of the front track 4, and the flange 35 on the rear roller 32 abuts against the rear side wall of the rear track 4. The positioning of the connecting frame 31 in the front-rear direction is further realized through the flange 35. Among them, the flange 35 and the roller 32 are of an integrally formed structure;

[0040] Of course, during the movement of the excavator on the track 4, the bottom of the crawler 2 can also be abutted against the top of the track 4, that is, the roller 32 and the crawler 2 are in contact with the track 4 at the same time. Through the movement of the crawler 2 on the track 4, the moving efficiency of the excavator is further improved. In addition, when the excavator moves on the track 4 in this way, the power system can also be removed, that is, only the crawler 2 is used to realize the movement of the excavator;

[0041] During normal driving on the ground, that is, when only the crawler 2 is used to realize the movement of the excavator, the connecting frame 31 is driven to rotate by the lifting oil cylinder 33, and a gap is generated between the roller 32 and the ground;

[0042] In summary, the excavator can not only drive normally on the ground through the crawler 2, but also separate the crawler 2 from the ground and the track 4 by driving the connecting frame 31 to rotate and raising the chassis 1, and then realize the movement of the excavator on the track 4 through the rotation of the roller 32 on the track 4, thereby improving the driving speed of the excavator.

[0043] In addition to the above embodiments, the present invention also includes other embodiments. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present invention.

Claims

1. An explosion-proof chassis assembly for a mining excavator, comprising a chassis (1), two crawlers (2) are connected to the chassis (1), and the two crawlers (2) are distributed front and rear. It is characterized in that: Two auxiliary mechanisms (3) are provided on the chassis (1), and the two auxiliary mechanisms (3) are arranged symmetrically left and right. The chassis (1) realizes movement on the track (4) through the two auxiliary mechanisms (3). The auxiliary mechanism (3) includes a connecting frame (31). The connecting frame (31) is arranged obliquely. Two rollers (32) are provided on the connecting frame (31), and the two rollers (32) are arranged symmetrically front and back. A power system is provided on the connecting frame (31), and the power system drives the rollers (32) to rotate. The connecting frame (31) is hinged to the chassis (1), and a lifting oil cylinder (33) is connected to the connecting frame (31). One end of the lifting oil cylinder (33) is hinged to the chassis (1), and the other end of the lifting oil cylinder (33) is hinged to the connecting frame (31). The auxiliary mechanism (3) further includes two limiting components (34), and the two limiting components (34) are arranged symmetrically front and back. The limiting component (34) is used to realize the positioning between the connecting frame (31) and the track (4).

2. The chassis assembly of an explosion-proof mining excavator according to claim 1, wherein: The limiting component (34) includes a locking claw (341) and a hinge seat (342). The hinge seat (342) is fixedly arranged on the connecting frame (31). The two ends of the locking claw (341) are distributed up and down. The middle end of the locking claw (341) is hinged to the hinge seat (342) through a hinge shaft (343). The hinge shaft (343) is parallel to the left-right direction, and an adjusting unit (344) is connected to the upper end of the hinge shaft (343). The adjusting unit (344) is used to adjust the angle of the locking claw (341).

3. The chassis assembly of a mine explosion-proof excavator according to claim 2, characterized in that: A convex block (345) is formed by the convexity at the lower end of the locking claw (341).

4. The chassis assembly of a mine explosion-proof excavator according to claim 3, characterized in that: The track (4) is of I-beam steel structure.

5. The chassis assembly of a mining explosion-proof excavator according to claim 2, characterized in that: The adjusting unit (344) includes an adjusting rod (3441) and a connecting rod (3442). The connecting rod (3442) is fixedly arranged on the locking claw (341). One end of the adjusting rod (3441) is hinged to the hinge seat (342), and the other end of the adjusting rod (3441) passes through the connecting rod (3442). Two locking nuts (3443) are threadedly connected to the adjusting rod (3441), and the two locking nuts (3443) respectively abut against the front and back sides of the connecting rod (3442).

6. A chassis assembly of a mine explosion-proof excavator according to any one of claims 1-5, characterized in that: A flange (35) is provided on the roller (32).

7. The chassis assembly of an explosion-proof mining excavator according to claim 6, characterized in that: The flange (35) and the roller (32) are of an integrally formed structure.

8. A chassis assembly of a mine explosion-proof excavator according to claim 1, characterized in that: The two connecting frames (31) form a V-shaped and an inverted V-shaped structure.

9. The chassis assembly of an explosion-proof mining excavator according to claim 1, wherein: A rotating seat (5) is provided on the chassis (1).

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