CN211395789U

CN211395789U - Automatic overturning equipment for bulldozer trolley frame

Info

Publication number: CN211395789U
Application number: CN201921579045.3U
Authority: CN
Inventors: 霍厚志; 乔锟; 王萌; 张瑞; 梁成岭; 张建; 宫涛; 樊庆琢; 王莉莉
Original assignee: Shantui Chutian Construction Machinery Co Ltd
Current assignee: Shantui Chutian Construction Machinery Co Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-09-01
Anticipated expiration: 2029-09-23

Abstract

The utility model belongs to the technical field of engineering machine tool accessory and specifically relates to automatic tipping arrangement of bull-dozer platform truck frame, including a pair of support machine of shifting the top of electronic link joint transfer chain is equipped with the upset frock support frame that a level set up, the both ends of upset frock support frame respectively with corresponding carousel on the pair of support machine of shifting links firmly mutually respectively on the front side of upset frock support frame about two sections respectively symmetrical fixed mounting have a translation double track way mechanism, at each the last respectively movable joint of translation double track way mechanism has one can follow its length direction and realize the pneumatic clamping mechanism of translation, pneumatic clamping mechanism is used for realizing the clamp tight to the platform truck frame two sections respectively the symmetrical pneumatic rotary mechanism of installing of rear side of upset frock support frame. The device is safe and reliable in operation, eliminates a plurality of potential safety hazards in the existing trolley frame overturning, and effectively solves the problem that the surface of the trolley frame is frequently collided.

Description

Automatic overturning equipment for bulldozer trolley frame

Technical Field

The utility model belongs to the technical field of engineering machine tool accessory and specifically relates to automatic tipping arrangement of bull-dozer bogie frame.

Background

In the engineering machinery industry, the problem of overturning heavy structural members is always a relatively troublesome problem in the industry, and at present, two heavy structural member overturning methods are commonly used in the industry: one method is to overturn by means of a driving vehicle in a chain lock chain hanging mode, namely, a chain lock penetrates through the bottom of a structural part and is finally hung on a hoisting point at the upper part of the structural part, then the driving vehicle is pulled upwards, and the structural part can be inverted up and down under the action of gravity to realize the overturning of the structural part; and the other is to design a special overturning device to overturn the structural member. There are several problems in both of the above two flipping modes, as follows:

(1) the main problem of turning by means of a driving vehicle in a chain lock chain hanging mode is as follows:

1) the operation mode does not conform to the safe operation regulations for driving, and the risks of pulling the electric hoist of the driving off and pulling the rope off exist;

2) the operation mode easily causes the surface of the trolley frame to collide, and damages the paint surface and the mechanism of the trolley frame;

3) the operation mode needs frequent participation of operators, has high dependence on personnel, has high labor intensity of personnel and is easy to cause safety accidents of personnel;

4) the operation mode is not suitable for the automatic and continuous production of trolley products.

(2) The special overturning equipment is designed to overturn the structural component, the overturning mode is a relatively safe overturning mode recognized in the industry, and the overturning mode generally has the following problems:

1) the equipment has poor universality and is generally suitable for overturning one or more structural parts with relatively similar overall dimensions;

2) the clamping and the dismounting of the structural part on the turnover equipment are time-consuming and labor-consuming;

the turning of the current bogie frame adopts a first turning mode, mainly because the bogie frames are various and have large differences in external dimensions, and because the structural characteristics of the bogie frames are not easy to realize the rapid clamping and dismounting of special turning equipment, the following figure 1 is a three-dimensional schematic diagram of the current bogie frame.

In conclusion, the trolley frame is overturned in a chain lock chain hanging mode by means of the travelling crane, violation operation is caused, and the problems that the universality of the special overturning equipment is poor and the structural part is difficult to clamp and disassemble are solved when the special overturning equipment is designed to overturn the trolley frame. In view of this, it is urgently needed to design a novel device which can effectively solve the problems that the conventional turnover device is poor in universality and time-consuming and labor-consuming in tapping and clamping assembly and disassembly, and the like, and the novel device is used in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical scheme that one of above-mentioned technical problem adopted and be: the automatic overturning equipment for the bulldozer trolley frame comprises a double-support positioner, wherein an electric chain plate conveying line which is vertical to the double-support positioner is arranged on the ground in the middle of the double-support positioner, an overturning tool supporting frame which is horizontally arranged is arranged above the electric chain plate conveying line, two end parts of the overturning tool supporting frame are fixedly connected with corresponding turnplates on the double-support positioner respectively, a translation double-track mechanism is symmetrically and fixedly arranged on the left section and the right section of the front side of the overturning tool supporting frame respectively, a pneumatic clamping mechanism capable of realizing translation along the length direction of the translation double-track mechanism is movably clamped on each translation double-track mechanism respectively, the pneumatic clamping mechanism is used for clamping the trolley frame, a pneumatic rotating mechanism is symmetrically arranged on each section of the rear side of the overturning tool supporting frame respectively, and the pneumatic rotating mechanism is used for matching with the pneumatic clamping mechanism to clamp the trolley frame, the left side two-stage pneumatic lifting mechanism and the right side single-stage pneumatic lifting mechanism are fixedly mounted on the ground of the left side and the right side of the electric chain plate conveying line respectively, and the left side two-stage pneumatic lifting mechanism and the right side single-stage pneumatic lifting mechanism are matched to realize the translation of the automatic lifter of the trolley frame.

Each pneumatic element is connected with an external air pump and a pneumatic system through related electrical components such as a lead, an air duct, a relay, a contactor and the like, the specific connection mode is conventionally connected by an installer, and the connection mode has no innovation and is not repeated.

Preferably, the pneumatic clamping mechanism comprises a translation frame, the side wall of the translation frame is fixedly mounted on a movable sliding block of the translation double-track mechanism, the movable sliding block is slidably clamped on a corresponding track, a clamping cylinder is fixedly mounted at the top of the translation frame, and a piston rod of the clamping cylinder penetrates out of the translation frame and is fixedly connected with a clamping disc.

Preferably, an abutting block for abutting against the surface of the trolley frame is fixedly mounted on the inner side and the outer side of the bottom of the clamping disc respectively.

Preferably, the translation frames on both sides of the clamping cylinder are respectively and symmetrically fixedly provided with a limiting pipe, a guide column is vertically inserted into each limiting pipe, and the bottom of each guide column is respectively and fixedly arranged on the top of the clamping disc.

Preferably, pneumatic rotary mechanism includes a fixed mounting and is in spacing support frame on the upset frock support frame rear side wall spacing support frame top fixed mounting has a revolving cylinder the bottom fixed mounting of revolving cylinder's piston rod has a reversing lever, the lower extreme activity of reversing lever passes spacing hole on the spacing support frame and links firmly mutually with a rotatory fork, rotatory fork is used for realizing the support to the bogie frame bottom and cooperates pneumatic clamping mechanism to realize pressing from both sides tightly the bogie frame.

Preferably, the left secondary pneumatic lifting mechanism comprises a left guide rail fixedly arranged on the left ground surface of the electric chain plate conveying line, a plurality of left slide blocks are respectively arranged on the left guide rail in a sliding way, a lower moving frame is fixedly arranged at the top of each left slide block, a lower lifting cylinder is fixedly arranged on the base of the lower moving frame, an upper lifting frame is fixedly arranged above a piston rod of the lower lifting cylinder, an upper lifting cylinder which is coaxial with the lower lifting cylinder is fixedly arranged on the base of the upper lifting frame, the upper end of the piston rod of the upper lifting cylinder movably penetrates through the upper lifting frame and is fixedly connected with a left bearing bracket, and the lower ends of the extension tubes sequentially and movably penetrate through the upper lifting frame and the upper part of the lower moving frame and are fixedly connected with the base of the lower moving frame.

Preferably, the pneumatic elevating system of right side single-stage include one with left side guide rail symmetry sets up and fixes the right side guide rail subaerial slide respectively on the guide rail of right side and be equipped with a plurality of right slider, have a right side at the top fixed mounting of each right slider and remove the frame fixed mounting has a right lift cylinder on the base of frame is removed on the right side, the top fixed mounting of the piston rod of right side lift cylinder has a right side to remove the frame, the upper end activity of the piston rod of right side lift cylinder is worn out the right side is removed the frame and is linked firmly with a right support bracket, links firmly a flexible pipe respectively on the both sides bottom of right support bracket, the lower extreme activity of flexible pipe is passed the right side is removed the frame top and with the base of frame is removed on the right.

The beneficial effects of the utility model are embodied in: (1) the operation is safe and reliable, and a plurality of potential safety hazards existing in the turning of the existing trolley frame are eliminated;

(2) the problem of frequent collision on the surface of the trolley frame is effectively solved;

(3) the participation frequency of personnel in the overturning process of the trolley frame is reduced, and the labor intensity of operators is reduced;

(4) the automatic overturning of the multi-model bulldozer trolley frame can be realized without replacing the tooling clamp.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a conventional bogie frame.

Fig. 2 is a schematic structural diagram of the height change of the supporting points before and after the assembly of the conventional bogie frame 6.

Fig. 3 is a schematic view of the three-dimensional structure of the present invention.

Fig. 4 is a schematic perspective view of the turning tool support frame and the upper part thereof according to the present invention.

Fig. 5 is a schematic perspective view of the pneumatic clamping mechanism of the present invention.

Fig. 6 is a schematic perspective view of the pneumatic rotating mechanism of the present invention.

Fig. 7 is a schematic perspective view of the left-side two-stage pneumatic lifting mechanism of the present invention.

Fig. 8 is a schematic perspective view of the right single-stage pneumatic lifting mechanism of the present invention.

Fig. 9 is a schematic perspective view of a rear view angle according to the present invention.

Fig. 10 is the schematic structural diagram of the turnover tool support frame of the present invention after driving the trolley frame to turn over by 180 degrees.

Fig. 11 is a schematic perspective view of the loading state of the trolley frame according to the present invention.

In the figure, 1, a double-support positioner; 101. a three-phase asynchronous motor; 2. An electric chain plate conveying line; 3. turning over the tool support frame; 4. A translation double-track mechanism; 41. moving the slide block; 5. A pneumatic clamping mechanism; 51. a translation frame; 52. a clamping cylinder; 53. clamping the disc; 54. a butting block; 55. a limiting pipe; 56. a guide post; 6. a bogie frame; 7. a pneumatic rotating mechanism; 71. rotating the pallet fork; 72. a limiting support frame; 73. a rotary cylinder; 74. a turning lever; 8. a left secondary pneumatic lifting mechanism; 81. a left guide rail; 82. a left slider; 83. a lower moving frame; 84. a lower lifting cylinder; 85. lifting the frame; 86. an upper lifting cylinder; 87. a left support bracket; 9. a single-stage pneumatic lifting mechanism on the right side; 91. a right guide rail; 92. a right slider; 93. a right moving frame; 94. a right lifting cylinder; 95. a right support bracket.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-11, the automatic overturning device for the bulldozer trolley frame comprises a dual-support positioner 1, an electric chain plate conveying line 2 perpendicular to the dual-support positioner 1 is installed on the ground in the middle of the dual-support positioner 1, an overturning tool support frame 3 horizontally arranged is arranged above the electric chain plate conveying line 2, two end portions of the overturning tool support frame 3 are fixedly connected with corresponding turntables on the dual-support positioner 1 respectively, a translation double-track mechanism 4 is fixedly installed on the left section and the right section of the front side of the overturning tool support frame 3 respectively and symmetrically, a pneumatic clamping mechanism 5 capable of translating along the length direction of the translation double-track mechanism is movably clamped on each translation double-track mechanism 4 respectively, the pneumatic clamping mechanism 5 is used for clamping the trolley frame 6, and a pneumatic rotating mechanism 7 is installed on the two sections of the rear side of the overturning tool support frame 3 respectively and symmetrically, pneumatic rotary mechanism 7 is used for cooperating pneumatic clamping mechanism 5 to realize the clamp tight to bogie frame 6, and subaerial respectively fixed mounting in the left and right sides of electronic link joint transfer chain 2 has a left side second grade pneumatic elevating system 8, the pneumatic elevating system 9 of right side single-stage, the translation of automatic lift to bogie frame 6 is realized with the cooperation of the pneumatic elevating system 9 of right side second grade pneumatic elevating system 8.

When in work, the three-phase asynchronous motor 101 on the double-support positioner 1 of the prior equipment is mainly controlled to rotate, thereby driving the turnover tool support frame 3 and each part thereon as well as the clamped trolley frame 6 to rotate according to the specified rotation angle, the translational position of each pneumatic clamping mechanism 5 needs to be adjusted according to the length of the current trolley frame 6, then the pneumatic clamping mechanism 5 is controlled to clamp the trolley frame 6 according to the requirement, the bottom of the trolley frame 6 is supported by the rotary fork 71 of the pneumatic rotating mechanism 7, the rotary fork 71 is controlled to rotate to the position without interference after being turned over, then assembling a thrust wheel and a mudguard, finally resetting the rotary fork 71, controlling the three-phase asynchronous motor 101 to reversely reset, the trolley frame 6 is conveyed and translated through the matching of the left-side two-stage pneumatic lifting mechanism 8 and the right-side single-stage pneumatic lifting mechanism 9.

The pneumatic lifting mechanism is used for lifting and translating the trolley frame 6, and the mechanism can automatically place the trolley frame 6 in the double-support positioner 1 tool and also can automatically take the trolley frame 6 out of the double-support positioner 1 tool and place the trolley frame on the electric chain plate conveying line 2. The mechanism is an automatic transfer mechanism for connecting a double-support positioner 1 and an electric chain plate conveying line 2.

The pneumatic rotating mechanism 7 is used for supporting the platform frame 6, the platform frame 6 can be clamped tightly by matching with the pneumatic clamping mechanism 5, after the positioner overturns 180 degrees, the mechanism can rotate 90 degrees to avoid interference of manual assembly of a supporting wheel and a fender, when the platform frame 6 overturns, the rotary fork 71 can rotate 90 degrees automatically to match with the pneumatic clamping mechanism 5 to realize automatic clamping of the platform frame 6, when the platform frame 6 is assembled, the rotary fork 71 rotates 90 degrees automatically again to avoid interference of assembly of the platform frame 6.

In order to adapt to the automatic clamping of various trolley frames 6, the pneumatic clamping mechanism 5 is arranged on the translation double-track mechanism 4 and can realize translation, namely, the clamping of the trolley frames 6 of various types can be solved on the premise of not changing the tooling fixture according to the horizontal positions of the pneumatic clamping mechanism 5 on the turnover tooling support frame 3, wherein the length and the size of the trolley frames 6 can be adjusted.

Preferably, the pneumatic clamping mechanism 5 includes a translation frame 51, the side wall of the translation frame 51 is fixedly mounted on the moving slider 41 of the translation double-track mechanism 4, the moving slider 41 is slidably and snap-connected to the corresponding track, a clamping cylinder 52 is fixedly mounted at the top of the translation frame 51, and a piston rod of the clamping cylinder 52 penetrates through the translation frame 51 downwards and is fixedly connected with a clamping disc 53.

The pneumatic clamping mechanism 5 is arranged on a moving slide block 41 on a turning tool bracket of the positioner, the mechanism can be properly adjusted in the horizontal direction according to the length size of the trolley frame 6, the main function of the mechanism is that the mechanism is matched with the pneumatic rotating mechanism 7 (a rotating fork 71 on the pneumatic rotating mechanism) to clamp and fix the trolley frame 6, so that the trolley frame 6 can be turned over, and the mechanism also has a function of supporting the trolley frame 6. After the trolley frame 6 on the turning tool of the positioner is turned over by 180 degrees, the air cylinder of the pneumatic clamping mechanism 5 can contract, the trolley frame 6 falls along with the pneumatic clamping mechanism 5, the trolley frame 6 is separated from the rotary fork 71 at the moment, subsequent workers can assemble trolley parts such as a thrust wheel and a fender on the trolley, and the trolley frame 6 is supported by the pneumatic clamping mechanism 5 in the whole assembling process.

Preferably, an abutting block 54 for abutting against the surface of the trolley frame 6 is fixedly mounted on the inner side and the outer side of the bottom of the clamping disc 53 respectively.

Preferably, a limiting pipe 55 is symmetrically and fixedly mounted on the translation frame 51 on both sides of the clamping cylinder 52, a guiding column 56 is vertically inserted into the limiting pipe 55, and the bottom of each guiding column 56 is fixedly mounted on the top of the clamping disc 53.

Preferably, the pneumatic rotating mechanism 7 comprises a limiting support frame 72 fixedly mounted on the rear side wall of the turnover tool support frame 3, a rotary cylinder 73 is fixedly mounted at the top of the limiting support frame 72, a rotary rod 74 is fixedly mounted at the bottom of a piston rod of the rotary cylinder 73, the lower end of the rotary rod 74 movably penetrates through a limiting hole in the limiting support frame 72 and is fixedly connected with a rotary fork 71, and the rotary fork 71 is used for supporting the bottom of the trolley frame 6 and is matched with the pneumatic clamping mechanism 5 to clamp the trolley frame 6.

The pneumatic rotating mechanism 7 is arranged on the back surface of the turning tool support of the positioner, and is shown in fig. 3, and has two functions, one of which is that the pneumatic rotating mechanism and the pneumatic clamping mechanism 5 cooperate to clamp the trolley frame 6 to realize automatic turning of the trolley frame 6; the clamping cylinder 52 can automatically contract after the two trolley frames 6 are automatically overturned for 180 degrees, at the moment, in order to avoid interfering with the assembly of parts such as thrust wheels, mud guards and the like on the trolley frames 6 by an operator, the pneumatic rotating mechanism 7 automatically rotates for 90 degrees, the rotating fork 71 rotates for 90 degrees after the assembly of the trolley frames 6 by the operator is completed, then the clamping cylinder cooperates with the pneumatic clamping mechanism 5 to secondarily clamp the trolley frames 6, and then the positioner carries out secondary overturning.

Preferably, the left-side two-stage pneumatic lifting mechanism 8 comprises a left-side guide rail 81 fixedly installed on the left-side ground of the electric chain plate conveying line 2, a plurality of left sliding blocks 82 are respectively arranged on the left-side guide rail 81 in a sliding manner, a lower moving frame 83 is fixedly installed at the top of each left sliding block 82, a lower lifting cylinder 84 is fixedly installed on a base of the lower moving frame 83, an upper lifting frame 85 is fixedly installed above a piston rod of the lower lifting cylinder 84, an upper lifting cylinder 86 coaxially arranged with the lower lifting cylinder 84 is fixedly installed on a base of the upper lifting frame 85, the upper end of the piston rod of the upper lifting cylinder 86 movably penetrates through the upper lifting frame 85 and is fixedly connected with a left bearing bracket 87, two side bottoms of the left bearing bracket 87 are respectively fixedly connected with a telescopic pipe, and the lower end of the telescopic pipe sequentially movably penetrates through the upper lifting frame 85, And the upper part of the lower moving frame 83 is fixedly connected with the base of the lower moving frame 83.

Pneumatic elevating system 8 of left side second grade and right side single-stage pneumatic elevating system 9 constitute the utility model discloses in pneumatic elevating system, the main function of this mechanism is the automatic lift translation that realizes bogie frame 6, the final function is the automatic transportation of realizing bogie frame 6 from shifting machine upset frock to electric chain board transfer chain 2 within a definite time. The left side of the mechanism is provided with a two-stage lifting mechanism which mainly aims at solving the problem that the height of the supporting point changes before and after the assembly of the existing trolley frame 6, and the structure is shown in figure 2.

Preferably, the right single-stage pneumatic lifting mechanism 9 includes one with the left side guide rail 81 symmetry sets up and fixes the subaerial right side guide rail 91 slide respectively on the right side guide rail 91 and be equipped with a plurality of right slider 92, have a right removal frame 93 at the top fixed mounting of each right slider 92 fixed mounting have a right lifting cylinder 94 on the base of right removal frame 93, the top fixed mounting of the piston rod of right lifting cylinder 94 has a right removal frame 93, the upper end activity of the piston rod of right lifting cylinder 94 is worn out the right removal frame 93 and is linked firmly with a right support bracket 95, links firmly a flexible pipe respectively at the bottom of the both sides of right support bracket 95, the lower extreme activity of flexible pipe passes the right side removes the frame 93 top and with the base of right removal frame 93 links firmly mutually.

The working process is as follows:

the equipment is in initial condition under normal condition, and operating personnel puts pneumatic elevating system with the driving on with the bogie frame 6, and operating personnel presses start button, and equipment pushes away bogie frame 6 to the inside upset frock support frame 3 one side of dual-support machine of shifting 1 frock, and pneumatic elevating system falls the bogie frame 6 automatically and places rotatory fork 71 on, and pneumatic clamping mechanism 5 falls automatically, presss from both sides the bogie frame 6 tightly, and the machine of shifting drives the automatic 180 degrees that overturns of bogie frame 6. The clamp cylinder 52 bottoms out with the trolley frame 6 (clamp cylinder 52 in the retracted state): the rotary fork 71 is rotated 90 degrees and the apparatus enters a pause state: the operator assembles thrust wheel and fender to bogie frame 6, then the manual work pushes start button again: the rotary fork 71 automatically rotates 90 degrees and stops above the trolley frame 6: the extension of the clamping cylinder 52 clamps the trolley frame 6, and the positioner automatically overturns 180 degrees: the pneumatic clamping mechanism 5 retracts automatically: the pneumatic lifting mechanism rises to support the trolley frame 6, the pneumatic lifting mechanism translation air cylinder retracts, the trolley frame 6 is far away from the positioner overturning tool, the lifting mechanism lifting air cylinder retracts, the trolley frame 6 is placed on the chain plate conveying line, and the conveying chain plate line automatically conveys the trolley frame 6 to the next process.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. Automatic tipping arrangement of bull-dozer bogie frame, including a pair of support machine of shifting, subaerial install one rather than mutually perpendicular's electronic link joint transfer chain, its characterized in that at the middle part of two support machine of shifting: a horizontally arranged turnover tool support frame is arranged above the electric chain plate conveying line, two end parts of the turnover tool support frame are respectively and fixedly connected with corresponding turntables on the double-support positioner, a translation double-track mechanism is respectively and symmetrically and fixedly arranged on the left section and the right section of the front side of the turnover tool support frame, a pneumatic clamping mechanism capable of realizing translation along the length direction of the translation double-track mechanism is respectively and movably clamped on each translation double-track mechanism, the pneumatic clamping mechanism is used for clamping a trolley frame, a pneumatic rotating mechanism is respectively and symmetrically arranged on the two sections of the rear side of the turnover tool support frame, the pneumatic rotating mechanism is used for matching with the pneumatic clamping mechanism to clamp the trolley frame, a left-side two-stage pneumatic lifting mechanism and a right-side single-stage pneumatic lifting mechanism are respectively and fixedly arranged on the ground on the left side and the right side of the electric chain, the left-side two-stage pneumatic lifting mechanism and the right-side single-stage pneumatic lifting mechanism are matched to realize the translation of the automatic lifter of the trolley frame.

2. The automatic overturning device for bulldozer trolley frame according to claim 1, characterized in that: the pneumatic clamping mechanism comprises a translation frame, the side wall of the translation frame is fixedly installed on a movable sliding block of the translation double-track mechanism, the movable sliding block is connected to the corresponding track in a sliding and clamping mode, a clamping cylinder is fixedly installed at the top of the translation frame, and a piston rod of the clamping cylinder penetrates out of the translation frame and is fixedly connected with a clamping disc.

3. The automatic overturning device for bulldozer trolley frame according to claim 2, characterized in that: and the inner side and the outer side of the bottom of the clamping disc are respectively and fixedly provided with a butting block which is used for butting against the surface of the trolley frame.

4. The automatic overturning device for bulldozer trolley frame according to claim 3, characterized in that: and the translation frames on two sides of the clamping cylinder are respectively and symmetrically fixedly provided with a limiting pipe, a guide column is vertically inserted in each limiting pipe, and the bottom of each guide column is respectively and fixedly arranged at the top of the clamping disc.

5. The automatic overturning device for bulldozer trolley frame according to claim 4, characterized in that: the pneumatic rotating mechanism comprises a limiting support frame fixedly mounted on the rear side wall of the turnover tool support frame, a rotary cylinder is fixedly mounted at the top of the limiting support frame, a rotary rod is fixedly mounted at the bottom of a piston rod of the rotary cylinder, the lower end of the rotary rod movably penetrates through a limiting hole in the limiting support frame and is fixedly connected with a rotary fork, and the rotary fork is used for supporting the bottom of the trolley frame and is matched with a pneumatic clamping mechanism to clamp the trolley frame.

6. The automatic overturning device for bulldozer trolley frame according to claim 5, characterized in that: the left secondary pneumatic lifting mechanism comprises a left guide rail fixedly arranged on the left ground of the electric chain plate conveying line, a plurality of left slide blocks are respectively arranged on the left guide rail in a sliding way, a lower moving frame is fixedly arranged at the top of each left slide block, a lower lifting cylinder is fixedly arranged on the base of the lower moving frame, an upper lifting frame is fixedly arranged above a piston rod of the lower lifting cylinder, an upper lifting cylinder which is coaxial with the lower lifting cylinder is fixedly arranged on the base of the upper lifting frame, the upper end of the piston rod of the upper lifting cylinder movably penetrates through the upper lifting frame and is fixedly connected with a left bearing bracket, and the lower ends of the extension tubes sequentially and movably penetrate through the upper lifting frame and the upper part of the lower moving frame and are fixedly connected with the base of the lower moving frame.

7. The automatic overturning device for bulldozer trolley frame according to claim 6, characterized in that: the pneumatic elevating system of right side single-stage includes one with left side guide rail symmetry sets up and fixes at subaerial right side guide rail slide respectively on the guide rail of right side and be equipped with a plurality of right slider, have a right side at the top fixed mounting of each right slider and remove the frame fixed mounting has a right lift cylinder on the base of frame is removed on the right side, the top fixed mounting of the piston rod of right side lift cylinder has a right side to remove the frame, the upper end activity of the piston rod of right side lift cylinder is worn out the right side is removed the frame and is linked firmly with a right support bracket, links firmly a flexible pipe respectively on the both sides bottom of right support bracket, the lower extreme activity of flexible pipe is passed the right side remove the frame top and with the base that the frame was removed on the.