CN203821480U - Chassis mechanism for mining excavation type loader - Google Patents

Abstract

The utility model discloses a chassis mechanism for mining excavation type loader, and the chassis mechanism for mining excavation type loader comprises a chassis support mechanism and two running gears; the chassis support mechanism is actively connected to the two running gears through two dismounting mechanisms respectively along the two sides of the walking direction. Compared with the prior art, initially, the chassis mechanism provided in the utility model is divided into three parts without changing work capability and safety factor, therefore, volume and weight of each part of the chassis mechanism are reduced, and bearing capability of the chassis mechanism is further increased; also the installation method is simple and rapid, and the purpose of simple assemble and disassemble and convenient transport by using the dismounting mechanism is realized; the application prospect is quite wide.

Description

Body chassis for mining loader for mine

Technical field

The utility model relates to a kind of body chassis, specifically, relates to a kind of body chassis for mining loader for mine, belongs to technical field of engineering machinery.

Background technology

Loader-digger has unique structure because of it, integrate excavation, loading, the broken and various functions that loosens the soil, be widely used in city and country highway construction and maintenance, the cubic metre of earth and stone scraper, ground and pipe works, the fields such as getting stone and mine operation of cutting into a mountain, become the new lover in small engineering machinery field.Common loader-digger can divide rubber-tyred, rail mounted and crawler type three types according to its walking manner.The small type that wheeled backhoe loader is only worked in suitable 1.7 meters of spaces, can only be in gallery work, and its shortcoming is in water and soil matter country rock and tunnel, Hard Rock Mass tunnel, easily occur skidding and sink and scratch tire, and benefit is lower, and material feeding dynamics is little; Its advantage is Zhuan Zhazhuan ore deposit, extra small space, and price is the most cheap but more to one's profit than manually.The suitable supporting rail transportation of rail mounted loader-digger is more saved, but its working range is limited, and frame paving rail bothers and can not in the gradient, work; Its advantage is moderate, and better results, and material feeding dynamics is larger, takes off material many greatly again.Caterpillar type loader digger combines above all advantages, but the more expensive point of early investment, can benefit but greatly double and duration cost dropped to existing minimum point.Thereby in engineering application, people are many is considered as this type of engineering machinery first-selection by caterpillar type loader digger.

Although caterpillar type loader digger technology is day by day ripe on market at home, but the limitation due to prior art, still there are many places to need to improve, especially its chassis problem, caterpillar type loader digger because of its speed of travel slower, after usually needing lorry to be first transported to work plane, carry out again work, so the problem how cost-saving owner of becoming need to consider.

Conventionally, according to the tonnage of caterpillar type loader digger, can be divided into 10 tons with the middle-size and small-size caterpillar type loader digger of interior crawler type loader-digger, 10-20 ton, the large-scale caterpillar type loader diggers that the medium-sized caterpillar type loader digger of 20-30 ton and 30 tons are above, and in general the chassis portion in the running gear of large-scale caterpillar type loader digger adopts monolithic construction.In actual use, find, the weight of caterpillar type loader digger chassis portion often accounts for the more than 30% of complete machine weight, when it is at mine down-hole, mine section, when the working platform such as tunnel or tunnel is implemented compared with long distance transportation, cannot in tunnel, work or walk, turn, stopped up on the contrary tunnel, hindered normal production, and because current caterpillar type loader digger chassis portion generally adopts monolithic construction, so-called monolithic construction refers to that the walking mechanism of both sides being installed by pedrail mechanism and middle sole (crossbeam) are connected for monolithic, be that sole and left and right walking mechanism weld together, thereby cannot regulate the distance between sole and left and right walking mechanism, also thereby sole and left and right walking mechanism cannot be decomposed to the decomposition weight that comes, thereby tend to while causing large-scale or ultra-large type caterpillar type loader digger to utilize Automobile Transportation overweight, super wide or superelevation, cannot meet the requirement of transportation, and there is larger potential safety hazard.So Chinese invention patent application CN101974924A and Chinese utility model patent CN202175124U disclose a kind of retractable chassis structure of excavator, by the improvement to chassis structure, make the chassis conveniently telescopic of excavator, meet the requirement of transportation.But the improvement of this structure has only been changed to its size, and chassis portion or an integral body, do not solve the overweight problem in chassis, so before work also need crawler-mounted excavator chassis to dismantle, after arriving job site, re-start general assembly; Or complete machine is transported to job site, these two kinds of methods all have larger requirement to manpower and haulage vehicle.Generally chassis portion can only be dismantled as two parts, also may be excessive because of chassis portion in disassembled for transport process (original structure restriction cannot further be decomposed it), cause that one piece is overweight or excessive cannot transport, assemble.China patent application CN102235167A discloses a kind of coal mine backhoe loader, comprises the Rack Body being comprised of left fixed mount, underframe and right fixed mount and is fixedly assembled in backhoe mechanism, scratch board conveyor, left body, right body, left walking mechanism and the right walking mechanism on described Rack Body; Its left walking mechanism and right walking mechanism are fixedly connected on respectively the outside of left fixed mount and right fixed mount, and described left body and right body are fixedly connected on respectively the top of described left fixed mount and right fixed mount outside, described left walking mechanism and right walking mechanism.Although the chassis portion of this loader-digger is small volume, assemblnig structure, its chassis part is many, complex structure, and dismounting efficiency is low, is not easy to transhipment, so that wastes the working time.

Summary of the invention

Because the chassis of dredging machine mechanism weight providing on domestic market is all more than 5 tons, body chassis each several part weight is at least 2 tons of left and right, and whole body chassis does not leave operating space to staff, during general assembly, chassis assembly need be hung upside down, overturn or move, both expend a large amount of manpower and materials, may have potential safety hazard again; For the problems referred to above, the purpose of this utility model is to provide a kind of body chassis for caterpillar type loader digger, make it chassis assembly is split as to three parts under the prerequisite that does not change loader-digger ability to work and safety factor, every part weight is about 0.5 ton, not only reduced the volume and weight of chassis assembly each several part, also for staff leaves operating space.Unlike the prior art, the body chassis for caterpillar type loader digger that the utility model provides only need be put chassis assembly each several part just and can install according to the position of duty, avoided chassis assembly to hang upside down, overturn or mobile situation, in the time of avoiding occurring security incident again in saving resource, there is no escape time and space, staff's personal safety has obtained great guarantee.

For achieving the above object, the technical solution adopted in the utility model is as follows:

For a body chassis for caterpillar type loader digger, comprise a chassis supporting mechanism and two walking mechanisms, and chassis supporting mechanism is flexibly connected with two walking mechanisms by two mechanism for assembling-disassembling respectively along the both sides of direction of travel.

For the ease of the manufacture of loader-digger with assemble easy to maintenance etc.; it is consistent and also identical with the connected mode of chassis supporting mechanism by corresponding mechanism for assembling-disassembling that inventor is made as structure by two walking mechanisms, but relate to as walking mechanism concrete structure and with the improvement such as connected mode of chassis supporting mechanism and not should be understood to not at protection domain of the present utility model in technical scheme as the above-mentioned constructed problem of solution.

Preferably, mechanism for assembling-disassembling comprises junction plate and at least one Connection Block of flexible connection; Junction plate is connected with chassis supporting mechanism, and Connection Block is connected with walking mechanism; In order to guarantee the intensity after whole body chassis is installed, as a kind of preferred version, junction plate is fixedly connected with chassis supporting mechanism, and Connection Block is fixedly connected with walking mechanism, is fixedly connected with and is preferably welding.Now, with this loader-digger, be positioned over ground, body chassis is followed successively by left walking mechanism, left mechanism for assembling-disassembling (Connection Block, junction plate), chassis supporting mechanism, left mechanism for assembling-disassembling (junction plate, Connection Block) and right walking mechanism from left to right; By two mechanism for assembling-disassembling, body chassis is divided into three removable parts.

More preferably, junction plate is consistent with chassis supporting mechanism height; The junction plate that the height of the both sides of Connection Block connects respectively with it and chassis supporting mechanism are consistent.

More preferably, the laminating of the opposite face of junction plate and Connection Block and flexible connection; Laminating is preferably seamless applying, is flexibly connected to be preferably to be spirally connected.

Further, the roughness of the opposite face of junction plate and Connection Block is not more than Ra3.2, is preferably Ra3.2.

More preferably, junction plate can be an integral body, or a plurality of panel element is spliced; Junction plate is preferably integrally formed strip metal sheet.

More preferably, junction plate two ends are flexibly connected respectively two Connection Blocks; But it should be noted that junction plate can be on demand flexibly connected from more Connection Block and different link position to reach the requirement of strength of body chassis.

More preferably, Connection Block one side be one with junction plate laminating and be flexibly connected be connected panel, opposite side is a connection assist being connected with walking mechanism.

As further preferred version, Connection Block comprises connection panel and the connection assist being fixedly connected with, and wherein connects panel with junction plate laminating and is flexibly connected, and connection assist is fixedly connected with walking mechanism.

For the ease of caterpillar type loader digger, wear arranging of oil pipe and alleviate complete machine weight, inventor is designed to hollow-core construction by the connection assist of Connection Block; As preferred version further, the hollow-core construction of this connection assist is formed around being on a square rear vertical connection panel that is fixedly connected on Connection Block by four risers.

More preferably, for mating respectively the connection of chassis supporting mechanism and walking mechanism, it is consistent with junction plate height that inventor designs the connection panel of Connection Block, and connection assist is consistent with chassis supporting mechanism height; But because the walking mechanism in the utility model and chassis supporting mechanism height differ, now, can retain accordingly the height that connects panel, and only adjust the height of connection assist, consistent with the height of chassis supporting mechanism and walking mechanism respectively to realize Connection Block.

As a kind of preferred version of realizing Connection Block both sides difference in height, a riser of the connection assist of Connection Block can change three floors of stepped connection into realize, be that its excess-three riser is respectively a horizontal riser and two relative risers with respect to ground line, now the difference in height of three floors is preferably the difference in height of Connection Block both sides, i.e. the walker of walking mechanism and the difference in height of junction plate.

Further, due between junction plate and Connection Block for being spirally connected, so connect the spacing that the width of panel is greater than two relative risers, in addition, connect panel one side and be used for offering screw and meet spanner space with the pitch difference of two relative risers.

More preferably, on junction plate, also offer a through hole, be preferably flute profile, wear oil pipe and run through junction plate by through hole; Correspondingly, on each relative riser of connection assist, be also provided with a through hole, be preferably flute profile, wear oil pipe and run through connection assist by slit-like through-holes.

It is worth mentioning that, because the utility model is split as three parts by chassis assembly, so the chassis assembly in the utility model is larger than the lifting surface area of chassis assembly in prior art, stress point is more, easy discontinuity, in order to guarantee load-bearing and the service behaviour of whole chassis assembly and to make machine stress even, so mechanism for assembling-disassembling also further comprises load-bearing axle, this load-bearing axle runs through the binding face of junction plate and Connection Block, dispersion with realizable force, and then reinforce being connected of chassis supporting mechanism and walking mechanism, avoid Connection Element to be subject to shearing force too greatly and distortion or fracture.

As realizing, further disperse stressed a kind of preferred version, the axle sleeve of establishing on junction plate extends to chassis supporting mechanism direction; The sleeve length of establishing on junction plate two ends is different; The sleeve length of establishing on one end that in junction plate two ends, load-bearing is larger is greater than the less one end of load-bearing; The axle sleeve of establishing on Connection Block extends to walking mechanism direction; The connection panel of Connection Block is provided with axle sleeve and axle sleeve extends to walking mechanism connection assist is inner, and more preferably, the axle sleeve that connects panel is positioned at connection assist.It is worth mentioning that, the axle sleeve development length on the supporting mechanism of chassis can be adjusted by the focus of work of excavator, can extend as required, to increase the lifting surface area of load-bearing axle at excavator focus of work sleeve length partly; If the focus of work of caterpillar type loader digger is in the front portion of chassis supporting mechanism, and its rear portion is relatively stable, the length that the axle sleeve of junction plate front end extends compared with the axle sleeve of junction plate rear end is so long; If the focus of work of caterpillar type loader digger is at the rear portion of chassis supporting mechanism, its front portion is relatively stable, and the length that the axle sleeve of junction plate rear end extends compared with the axle sleeve of junction plate front end is so long; Further, connect on panel and be also provided with an axle sleeve, axle sleeve extends to connection assist is inner, supports the use with the axle sleeve on the mechanism for assembling-disassembling of chassis.

Further, stressed excessive for fear of the axle sleeve extending in connection assist, the axle sleeve connecting on panel is respectively equipped with a load-bearing floor in the both sides up and down of vertical direction, two load-bearing floors are coaxial with the axle sleeve center of circle being connected on panel, and two load-bearing floors are parallel to two relative risers, the support for auxiliary axle sleeve to load-bearing axle.

In order to coordinate the installation of load-bearing axle, in walking mechanism, be also further provided with load-bearing axle dismounting hole; Further, for the ease of location and the retaining of load-bearing axle, on load-bearing axle and all axle sleeves, be all provided with locating hole, coordinate with locating hole and be also provided with at least one setting element; This setting element is bearing pin, is preferably bolt.

Further, the sleeve diameter of junction plate is greater than the axle sleeve of Connection Block and the internal diameter in load-bearing axle dismounting hole; The sleeve diameter of junction plate is preferably 40mm, and the internal diameter in the axle sleeve of Connection Block and load-bearing axle dismounting hole is preferably 38mm.

Further, the sleeve diameter of junction plate is greater than load-bearing axle external diameter, and the internal diameter in the axle sleeve of Connection Block and load-bearing axle dismounting hole is consistent with load-bearing axle external diameter.

Further, load-bearing axle surface roughness is not more than Ra1.6, is preferably Ra1.6.

Compared with prior art, the body chassis for caterpillar type loader digger that the utility model provides, body chassis is split as to three parts under the prerequisite that does not change caterpillar type loader digger ability to work and safety factor, its mounting method is simple and quick, reached the object of utilizing the simple dismounting of mechanism for assembling-disassembling, convenient transportation, so its application prospect is very wide.

Accompanying drawing explanation

Fig. 1 is preferred embodiment front section view of the present utility model;

Fig. 2 is preferred embodiment of the present utility model back side sectional view;

Fig. 3 is preferred embodiment explosive view of the present utility model;

Fig. 4 is preferred embodiment mechanism for assembling-disassembling explosive view of the present utility model;

Fig. 5 is preferred embodiment of the present utility model chassis supporting mechanism structural representation;

Fig. 6 is preferred embodiment Connection Block phantom drawing of the present utility model;

Fig. 7 is preferred embodiment Connection Block schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with preferred embodiment and accompanying drawing to the utility model do further in detail, intactly explanation.

A kind of preferred embodiment of the body chassis for caterpillar type loader digger that the embodiment shown in Fig. 1 and Fig. 2 provides for the utility model, as depicted in figs. 1 and 2, body chassis 1 comprises the chassis supporting mechanism 11 of flexible connection, walking mechanism 12 and mechanism for assembling-disassembling 13, mechanism for assembling-disassembling 13 is assembled into body chassis 1 after chassis supporting mechanism 11 is connected with two walking mechanisms 12, particularly, mechanism for assembling-disassembling 13 comprises the junction plate 131 of flexible connection, two Connection Blocks 132 and two load-bearing axles 133, junction plate 131 is welded on chassis supporting mechanism 11, Connection Block 132 is welded in walking mechanism 12, junction plate 131 and Connection Block 132 opposite face seamless pastes merge flexible connection, load-bearing axle 133 runs through the binding face of junction plate 131 and Connection Block 132.

As shown in Fig. 3, Fig. 4 and Fig. 6, junction plate 131 is a strip metal sheet, and junction plate 131 two ends are bolted respectively two Connection Blocks 132, Connection Block 132 1 sides are seamless applying with junction plate 131 panel 1321 that is connected, correspondingly, junction plate 131 is 6.3 with the contact surface roughness that is connected panel 1321, Connection Block 132 opposite sides be one with the connection assist of walking mechanism 12 welding, it is worth mentioning that, because chassis supporting mechanism 11 is inconsistent with the height of walking mechanism 12, inventor is designed to connection assist by one first riser 1322, two the second risers 1323 and three the first floors 1324 around be one square rear vertical be fixedly connected on to be connected on panel 1321 form, wherein, the stepped connection of three the first floors 1324, now the height of Connection Block 132 both sides is consistent with the height of chassis supporting mechanism 11 and walking mechanism 12 respectively, in order to bear the weight of whole caterpillar type loader digger, load-bearing axle 133 runs through the binding face of junction plate 131 and Connection Block 132, and is fixed in mechanism for assembling-disassembling 13 by positioning bolt.

As shown in Fig. 1, Fig. 5 and Fig. 6, in order to assist load-bearing axle 133 stressed, chassis supporting mechanism 11 and mechanism for assembling-disassembling 13 coordinate load-bearing axle 133 in the rear and front end of junction plate 131, be respectively equipped with an axle sleeve 1311 and an axle sleeve 1312 and extend to chassis supporting mechanism 11 directions, due to the focus of work of caterpillar type loader digger, be located at again the front portion of body chassis 1, correspondingly, front portion at body chassis 1 is provided with metal profile, so axle sleeve 1311 extends to through metal profile, to increase the lifting surface area of load-bearing axle 133, further disperse stressed; Connect simultaneously and on panel 1321, be also provided with an axle sleeve 1325 and extend to connection assist is inner, stressed excessive for fear of axle sleeve 1325, both sides up and down at its vertical direction are respectively equipped with load-bearing floor 1326, two load-bearing floors 1326 are coaxial with axle sleeve 1325 centers of circle, and two load-bearing floors 1326 are parallel to two the second risers 1323, for the support of auxiliary 1325 pairs of load-bearing axles 133 of axle sleeve.For the ease of the installation of load-bearing axle 133, in walking mechanism 12, be also provided with load-bearing axle dismounting hole, load-bearing axle 133 is inserted from axle sleeve 1311 or axle sleeve 1312, through in the laggard load-bearing axle dismounting hole that enters walking mechanism 12 of mechanism for assembling-disassembling 13 until fastening; It is worth mentioning that, for the ease of location and the retaining of load-bearing axle 133, on load-bearing axle 133 and all axle sleeves, be all provided with locating hole, positioning bolt is inserted in the locating hole of axle sleeve and load-bearing axle 133, carry out the location of load-bearing axle 133.Correspondingly, the internal diameter of axle sleeve 1311 and axle sleeve 1312 is greater than the internal diameter in axle sleeve 1325 and load-bearing axle dismounting hole, and axle sleeve 1325 is consistent with the external diameter of load-bearing axle 133 with the internal diameter in load-bearing axle dismounting hole; The internal diameter of axle sleeve 1311 and axle sleeve 1312 is 40mm, and the internal diameter in axle sleeve 1325 and load-bearing axle dismounting hole is 38mm, and the external diameter of load-bearing axle 133 is 38mm, and load-bearing axle 133 surface roughnesses are 3.2.

More specifically, due between junction plate 131 and Connection Block 132 for being spirally connected, as shown in Figure 7, the width that connects panel 1321 is greater than the spacing of two the second risers 1323, and the pitch difference of connection panel 1321 both sides and two the second risers 1323 is used for offering screw and meets spanner space.Correspondingly, in junction plate 131 rear and front ends, also the connection panel 1321 of corresponding each Connection Block 132 is provided with screw, and screw mates with the screw hole dimensions on Connection Block 132, now, connecting bolt and matching nut thereof are by connecting and composing helicitic texture by the screw that is fixed on the junction plate 131 of chassis supporting mechanism 11 both sides and be fixed on the connection panel 1321 of Connection Block of walking mechanism 12, and chassis supporting mechanism 11 is spirally connected with walking mechanism 12.

In addition, on junction plate 131, also offer a slit-like through-holes 1313, on each second riser 1323 of the connection assist of Connection Block 132, be also provided with a slit-like through-holes 13231, be convenient to wear oil pipe and run through complete machine.

Finally be necessary described herein: above embodiment is only for being described in more detail the technical solution of the utility model; can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement that those skilled in the art makes according to foregoing of the present utility model and adjustment all belong to protection domain of the present utility model.

Claims (34)

1. for a body chassis for mining loader for mine, it is characterized in that: comprise a chassis supporting mechanism and two walking mechanisms, described chassis supporting mechanism is flexibly connected with two walking mechanisms by two mechanism for assembling-disassembling respectively along the both sides of direction of travel.

2. the body chassis for mining loader for mine according to claim 1, it is characterized in that: described mechanism for assembling-disassembling comprises junction plate and at least one Connection Block of flexible connection, described junction plate is connected with chassis supporting mechanism, and described Connection Block is connected with walking mechanism.

3. the body chassis for mining loader for mine according to claim 2, is characterized in that: described junction plate is consistent with chassis supporting mechanism height.

4. the body chassis for mining loader for mine according to claim 2, is characterized in that: the junction plate that the height of the both sides of described Connection Block connects respectively with it and chassis supporting mechanism are consistent.

5. the body chassis for mining loader for mine according to claim 2, is characterized in that: junction plate and the laminating of Connection Block opposite face and flexible connection.

6. the body chassis for mining loader for mine according to claim 5, is characterized in that: the roughness of the opposite face of described junction plate and described Connection Block is not more than Ra3.2.

7. the body chassis for mining loader for mine according to claim 2, is characterized in that: described mechanism for assembling-disassembling also comprises load-bearing axle, and load-bearing axle runs through the binding face of junction plate and Connection Block.

8. the body chassis for mining loader for mine according to claim 7, is characterized in that: described load-bearing axle surface roughness is not more than Ra1.6.

9. the body chassis for mining loader for mine according to claim 2, is characterized in that: described junction plate is an integral body, or a plurality of panel element is spliced.

10. the body chassis for mining loader for mine according to claim 2, is characterized in that: the strip metal sheet that described junction plate is one of the forming.

11. body chassis for mining loader for mine according to claim 2, is characterized in that: described junction plate two ends are flexibly connected respectively two Connection Blocks.

12. body chassis for mining loader for mine according to claim 2, it is characterized in that: described Connection Block comprises connection panel and the connection assist being fixedly connected with, wherein said connection panel is fitted and is flexibly connected with junction plate, and described connection assist is fixedly connected with walking mechanism.

13. body chassis for mining loader for mine according to claim 2, is characterized in that: the connection panel of described Connection Block is consistent with junction plate height.

14. body chassis for mining loader for mine according to claim 12, is characterized in that: described connection assist is consistent with the side and the chassis supporting mechanism height that connect panel connection, and opposite side is consistent with walking mechanism height.

15. body chassis for mining loader for mine according to claim 14, is characterized in that: described Connection Block both sides difference in height is the difference in height of the junction of walking mechanism and chassis supporting mechanism.

16. body chassis for mining loader for mine according to claim 12, is characterized in that: described connection assist is hollow-core construction.

17. body chassis for mining loader for mine according to claim 12, is characterized in that: described connection assist was welded by four vertical being connected of riser head and the tail.

18. body chassis for mining loader for mine according to claim 7, is characterized in that: the junction of described load-bearing axle and junction plate and Connection Block is respectively equipped with axle sleeve.

19. body chassis for mining loader for mine according to claim 18, is characterized in that: the sleeve diameter of described junction plate is greater than the sleeve diameter of Connection Block, and the sleeve diameter of junction plate is greater than load-bearing axle external diameter.

20. body chassis for mining loader for mine according to claim 18, is characterized in that: described load-bearing axle and axle sleeve are provided with locating hole and setting element.

21. body chassis for mining loader for mine according to claim 18, is characterized in that: the axle sleeve of establishing on described junction plate extends to chassis supporting mechanism direction.

22. body chassis for mining loader for mine according to claim 18, is characterized in that: the sleeve length of establishing on described junction plate two ends is different.

23. body chassis for mining loader for mine according to claim 18, is characterized in that: the set sleeve length in one end that in described junction plate two ends, load-bearing is larger is greater than the less one end of load-bearing.

24. body chassis for mining loader for mine according to claim 18, is characterized in that: the axle sleeve of establishing on described Connection Block extends to walking mechanism direction.

25. body chassis for mining loader for mine according to claim 18, is characterized in that: the axle sleeve of establishing on the connection panel of described Connection Block extends to walking mechanism direction.

26. body chassis for mining loader for mine according to claim 18, is characterized in that: the axle sleeve of described connection panel is positioned at connection assist.

27. body chassis for mining loader for mine according to claim 18, is characterized in that: the upper and lower both sides of axle sleeve on described connection panel are respectively equipped with load-bearing floor.

28. body chassis for mining loader for mine according to claim 27, is characterized in that: described load-bearing floor is coaxial with the axle sleeve center of circle being connected on panel.

29. body chassis for mining loader for mine according to claim 27, is characterized in that: described load-bearing floor is parallel to two relative risers of connection assist.

30. body chassis for mining loader for mine according to claim 18, is characterized in that: described walking mechanism is provided with load-bearing axle dismounting hole.

31. body chassis for mining loader for mine according to claim 30, is characterized in that: the sleeve diameter of described junction plate is greater than the axle sleeve of Connection Block and the internal diameter in load-bearing axle dismounting hole.

32. body chassis for mining loader for mine according to claim 30, is characterized in that: the internal diameter in the axle sleeve of described Connection Block and load-bearing axle dismounting hole is consistent with load-bearing axle external diameter.

33. body chassis for mining loader for mine according to claim 31, is characterized in that: the sleeve diameter of described junction plate is 40mm.

34. body chassis for mining loader for mine according to claim 31, is characterized in that: the internal diameter in the axle sleeve of described Connection Block and load-bearing axle dismounting hole is 38mm.