Self-moving telescopic transition frame of overhead rail connecting rod type belt conveyor

Abstract

The utility model discloses a hanger rail connecting rod type belt conveyor self-moving telescopic transition frame which comprises a machine frame and a hanger rail cross beam, and the machine frame is composed of a first fixed high supporting unit, a second fixed high supporting unit, a plurality of moving high supporting units, a first fixed short supporting unit, a second fixed short supporting unit and a plurality of moving short supporting units. The first fixed high supporting unit, the multiple movable high supporting units and the second fixed high supporting unit are sequentially arranged in the direction from the self-moving machine tail to the standard machine body frame, and the bottoms of the first fixed high supporting unit, the multiple movable high supporting units and the second fixed high supporting unit are movably arranged on the ground; the second fixed short supporting units are sequentially arranged in the direction from the self-moving machine tail to the standard machine body frame, and the bottoms of the second fixed short supporting units are movably installed on the standard machine body frame. The bottom of the hanger rail cross beam is connected to the machine frame through the moving trolley, the hanger rail cross beam moves to achieve stretching and retracting, the distance difference between the stretching length and the compressed length meets the one-day production retracting distance, and the production efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt conveyor technical field, concretely relates to a kind of self-moving telescopic transition frame of suspension rail connecting rod type belt conveyor. BACKGROUND

[0002] Belt conveyor is the main transport equipment of heading and stoping technology in coal mining operation.In the stoping production process, the belt conveyor in crossheading needs to be shortened according to the advance of working face, and the working stroke of the matched self-moving tail is generally 3m, so the belt conveyor in crossheading needs to be removed after advancing 3m: including a pair of longitudinal beams, two groups of upper rollers, and a group of supporting legs (including lower rollers). In the process of heading, with the advance of heading machine, the belt conveyor advances along the track, and the main belt conveyor body also increases the corresponding distance, so the main belt conveyor needs to be stopped and the corresponding length of the body needs to be installed. In the traditional coal mining operation, the body at the tail needs to be frequently disassembled and installed, and at the same time, the rest of the equipment at the working face needs to be temporarily stopped, which seriously affects the work efficiency. For the fully mechanized working face with high automation, frequent stoppage will seriously reduce the production capacity and waste resources.

[0003] For the existing problems, the existing treatment methods mainly include: 1. installing a telescopic body frame on the self-moving tail, with a stroke of 3-6m, which can reduce the frequency of disassembling the body frame; 2. setting a self-moving support between the self-moving tail and the body frame, which can move synchronously with the self-moving tail, and the working stroke is generally about 3m, which is limited by the working stroke and the effect is not ideal. UTILITY MODEL CONTENTS

[0004] In view of the technical problem that the existing belt conveyor needs to be frequently disassembled during work, which results in low work efficiency, the utility model aims to provide a self-moving telescopic transition frame of suspension rail connecting rod type belt conveyor, which is composed of a high support section and a short support section, the high support section is arranged between the self-moving tail and the standard body frame, the short support section is installed above the standard body frame by means of track rollers, the suspension rail beam is movably arranged on the top of the high support section and the short support section, and the suspension rail beam moves between the standard body frame and the self-moving tail to extend or retract, the difference in length between the fully extended length and the compressed length is just enough for the production and withdrawal distance in a day, so there is no need to stop frequently for disassembling the body frame during the production process in a day, and the disassembling work of the body frame is arranged in the maintenance shift, which effectively improves the production efficiency.

[0005] In order to achieve the above purpose, the self-moving telescopic transition frame of suspension rail connecting rod type belt conveyor provided by the utility model includes a rack, a suspension rail beam,

[0006] The rack is composed of a first fixed high support unit, a second fixed high support unit, a plurality of mobile high support units, a first fixed short support unit, a second fixed short support unit, and a plurality of mobile short support units,

[0007] The first fixed high support unit, the second fixed high support unit, and the plurality of mobile high support units are arranged between the self-moving tail and the standard fuselage frame and are movably arranged on the ground,

[0008] The first fixed short support unit, the second fixed short support unit, and the plurality of mobile short support units are movably arranged above the standard fuselage frame.

[0009] The top of the first fixed high support unit, the second fixed high support unit, the plurality of mobile high support units, the first fixed short support unit, the second fixed short support unit, and the plurality of mobile short support units is connected to the bottom of the suspension rail beam through a mobile trolley.

[0010] The first fixed high support unit is fixedly connected with the suspension rail beam and the self-moving tail, the second fixed high support unit is fixedly connected with the first fixed short support unit, and the plurality of mobile high support units are movably arranged between the first fixed high support unit and the second fixed high support unit.

[0011] The first fixed short support unit is connected with the standard fuselage frame and the second fixed high support unit, the second fixed high support unit is connected with the suspension rail beam, and the plurality of mobile short support units are movably arranged between the first fixed short support unit and the second fixed short support unit.

[0012] The first fixed high support unit, the second fixed high support unit, and the plurality of mobile high support units are movably arranged above the standard fuselage frame.

[0013] Adjacent mobile trolleys are connected through a fixed-length round link.

[0014] Further, the suspension rail beam is composed of two track beams arranged in parallel, a plurality of connecting rods are connected between the two track beams, the plurality of connecting rods connect the two track beams, and the track beam can accommodate the mobile trolley to move along it.

[0015] Further, the first fixed high support unit, the second fixed high support unit, and the plurality of mobile high support units are structurally identical and each include two first support legs and a crossbar connected between the two first support legs.

[0016] The two first support legs correspond to two track beams respectively, the top end of the first support leg is movably connected to the bottom of the track beam by a moving trolley, and the bottom end of the first support leg is provided with a self-propelled wheel supported on the ground.

[0017] The cross bar is provided with a lower supporting roller, and an upper supporting roller is connected between the two first support legs and located above the lower supporting roller in the vertical direction.

[0018] Further, the first fixed short support unit, the second fixed short support unit, and the plurality of movable short support units have the same structure and each include two second support legs supported between the overhead track cross beam and the standard fuselage frame, the top of the second support leg is movably connected to the bottom of the overhead track cross beam by a moving trolley, and the bottom of the second support leg is provided with a rolling wheel, and the two sides of the standard fuselage frame are respectively provided with tracks capable of accommodating the rolling wheels.

[0019] Further, the plurality of upper supporting roller groups are sequentially arranged between the two track beams of the overhead track cross beam and movably connected to the two track beams by moving trolleys at both ends,

[0020] The plurality of lower supporting roller groups are sequentially hung below the adjacent two upper supporting roller groups, and the lower supporting roller groups are respectively provided with a first connecting piece and a second connecting piece, the first connecting piece movably connects two first connecting rods, and the second connecting piece movably connects two second connecting rods;

[0021] One end of the two first connecting rods and the two second connecting rods is movably connected to the first connecting piece and the second connecting piece respectively, and the other end of the two first connecting rods and the two second connecting rods is movably connected to the moving trolleys at both ends of the adjacent two upper supporting roller groups, thereby forming a hinged connecting rod mechanism.

[0022] The first connecting rods close to each other and the second connecting rods close to each other in the adjacent two lower supporting roller groups are jointly connected to the moving trolleys at both ends of the upper supporting roller group between the two lower supporting roller groups.

[0023] Further, the moving trolley at the top of the first fixed short support unit is driven by a hydraulic motor.

[0024] Further, the moving trolley on the second fixed high support unit is driven by a hydraulic motor.

[0025] Further, the overhead track cross beam is provided with a winch, and the second fixed high support unit is pulled forward by the winch.

[0026] Further, the first fixed high support unit, the second fixed high support unit, and the first support legs in the plurality of movable high support units are designed as retractable structures.

[0027] The self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is composed of a high supporting section and a short supporting section, the high supporting section is arranged between the self-moving tail and the standard body frame, the short supporting section is installed above the standard body frame through the track roller mode, the overhead rail cross beam is movably arranged on the top of the high supporting section and the short supporting section, and the overhead rail cross beam is moved between the standard body frame and the self-moving tail to be stretched or retracted, the length difference between the fully stretched length and the compressed length just meets the production and withdrawal distance of one day, therefore, the machine body frame does not need to be disassembled and assembled for multiple times of shutdown in the production process of one day, and the disassembly work of the machine body frame is arranged in the maintenance shift, so that the production efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further explained in combination with the drawings and specific embodiments.

[0029] Figure 1 The side view structural schematic diagram of the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is provided.

[0030] Figure 2 The three-dimensional structural schematic diagram of the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is provided.

[0031] Figure 3 The structural schematic diagram of the high supporting unit in the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is provided.

[0032] Figure 4 The side view structural schematic diagram of the short supporting unit in the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is provided.

[0033] Figure 5 The front view structural schematic diagram of the short supporting unit in the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor provided by the utility model is provided.

[0034] Figure 6 The schematic diagram of the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor in the retracted state is provided.

[0035] Figure 7 The schematic diagram of the self-moving telescopic transition frame of the overhead rail connecting rod type belt conveyor in the stretched state is provided.

[0036] Illustration:

[0037] The self-moving tail 1, the standard body frame 2.

[0038] The overhead rail cross beam 200, the moving trolley 300, the round link chain 400.

[0039] The first fixed high support unit 110, the first support leg 111, the crossbar 112, the self-propelled wheel 113, the lower supporting roller 114, the upper supporting roller 115, the second fixed high support unit 120, the movable high support unit 130, the first fixed short support unit 140, the second support leg 141, the rolling wheel 142, the track 143, the second fixed short support unit 150, the movable short support unit 160, the track beam 210, the connecting rod 220, the upper supporting roller group 310, the lower supporting roller group 320, the first connecting piece 321, the second connecting piece 322, the first connecting rod 323, and the second connecting rod 324. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings.

[0041] Through field actual engineering investigation, the working system of the fully mechanized coal mining face of the coal mine is usually 3 shifts per day, including 2 production shifts and 1 maintenance shift. The work load of 2 production shifts per day can make the standard machine body retreat a total distance of about 6m, and at least two times of shutdown are required to complete the removal work of the machine body frame.

[0042] The scheme aims to design a simple and practical self-moving telescopic transition frame, so as to realize the removal of the machine body frame without shutdown in one day of production work, and to arrange this work in the maintenance shift, which will effectively improve the production efficiency and increase the production capacity.

[0043] The self-moving telescopic transition frame provided by the scheme is arranged between the self-moving machine tail 1 and the standard machine body frame 2 of the belt conveyor, which is a set of transition device. The device is self-moving and telescopic, the fully extended length is preferably 9m, and the compressed length is preferably 3m. The compressed distance just meets the production retreat distance in one day. Therefore, it is not necessary to stop multiple times due to the disassembly and assembly of the machine body frame in one day of production, and the removal work of the machine body frame is arranged in the maintenance shift, which will effectively improve the production efficiency.

[0044] Referring to Figures 1-5 The structure schematic view of the overhead rail connecting rod type belt conveyor self-moving telescopic transition frame provided by the utility model is shown.

[0045] As shown in the drawings, the overhead rail connecting rod type belt conveyor self-moving telescopic transition frame provided by the utility model comprises a rack and an overhead rail cross beam 200.

[0046] The rack is a main structure and is used for bearing the overhead rail cross beam 200.

[0047] The rack is composed of a first fixed high support unit 110, a second fixed high support unit 120, a plurality of mobile high support units 130, a first fixed short support unit 140, a second fixed short support unit 150, and a plurality of mobile short support units 160,

[0048] The first fixed high support unit 110, the plurality of mobile high support units 130, and the second fixed high support unit 120 are sequentially arranged between the self-moving tail 1 and the standard fuselage rack 2 in the direction from the self-moving tail 1 to the standard fuselage rack 2, and are movably arranged on the ground,

[0049] The first fixed short support unit 140, the plurality of mobile short support units 160, and the second fixed short support unit 150 are sequentially arranged in the direction from the self-moving tail 1 to the standard fuselage rack 2, and are movably arranged above the standard fuselage rack 2;

[0050] The top of the first fixed high support unit 110, the second fixed high support unit 120, the plurality of mobile high support units 130, the first fixed short support unit 140, the second fixed short support unit 150, and the plurality of mobile short support units 160 are connected to the bottom of the overhead rail beam 200 through the mobile trolley 300;

[0051] The first fixed high support unit 110 is fixedly connected with the overhead rail beam 200 and the self-moving tail 1, the second fixed high support unit 120 is fixedly connected with the first fixed short support unit 140, and the plurality of mobile high support units 130 are movably arranged between the first fixed high support unit 110 and the second fixed high support unit 120;

[0052] The first fixed short support unit 140 is connected with the standard fuselage rack 2 and the second fixed high support unit 120, the second fixed support unit 120 is connected with the overhead rail beam 200, and the plurality of mobile short support units 160 are movably arranged between the first fixed short support unit 140 and the second fixed short support unit 150;

[0053] The first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130 are movably arranged between the first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130,

[0054] The adjacent mobile trolleys are connected through fixed-length round link chains 400.

[0055] In actual application, the transition frame is extended and retracted by changing the arrangement length of the overhead rail beam 200 on the standard fuselage frame 2, so as to change the distance between the self-moving tail 1 and the standard fuselage frame 2.

[0056] When the arrangement length of the overhead rail beam 200 on the standard fuselage frame 2 is the shortest, the transition frame is extended to the longest, and the longest is preferably 9 meters.

[0057] When the self-moving tail 1 pushes the overhead rail beam 200 to move towards the standard fuselage frame 2, the arrangement length of the overhead rail beam 200 on the standard fuselage frame 2 gradually increases, until the arrangement length of the overhead rail beam 200 on the standard fuselage frame 2 is the longest, and the transition frame is retracted to the shortest by 6 meters.

[0058] Specifically, as Figure 4 , the overhead rail beam 200 is composed of two track beams 210 arranged in parallel, and a plurality of connecting rods 220 are connected between the two track beams 210, and the plurality of connecting rods 220 connect the two track beams 210, and the track beam 210 can accommodate the mobile trolley 300 to move along it.

[0059] The overhead rail beam 200 with such a structure cooperates with the frame to bear the overhead rail beam 200 together by the first fixed high support unit 110, the second fixed high support unit 120, the plurality of mobile high support units 130, the first fixed short support unit 140, the second fixed short support unit 150, and the plurality of mobile short support units 160.

[0060] Further, as Figure 3 , the first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130 are the same structure, and each include two first support legs 111 and a cross bar 112 connected between the two first support legs 111.

[0061] The two first support legs 111 correspond to the two track beams 210 respectively, and the top end of the first support leg 111 is movably connected to the bottom of the track beam 210 through the mobile trolley 300, and the bottom end of the first support leg 111 is provided with a self-propelled wheel 113 supported on the ground.

[0062] The cross bar 112 is provided with a lower roller 114, and the upper roller 115 is connected between the two first support legs 111, and the upper roller 115 is located vertically above the lower roller 114.

[0063] As Figure 4 , Figure 5, the first fixed short support unit 140, the second fixed short support unit 150, the plurality of mobile short support units 160 are structurally identical, and each comprises two second support legs 141, the two second support legs 141 are supported between the suspension rail cross beam 200 and the standard fuselage frame 2, the top of the second support leg 141 is movably connected to the bottom of the suspension rail cross beam 200 through the mobile trolley 300, the bottom of the second support leg 141 is provided with a rolling wheel 142, and the two sides of the standard fuselage frame 2 are respectively provided with a track 143 capable of accommodating the rolling wheel 142,

[0064] As Figure 5 , the present scheme preferably adopts an E-shaped pin to complete the connection between the track 143 and the standard fuselage frame 2,

[0065] Further, as Figure 3 , a plurality of upper supporting roller groups 310 are sequentially arranged between the two track beams 210 of the suspension rail cross beam 200, and the two ends are movably connected to the two track beams 210 through the mobile trolley 300,

[0066] A plurality of lower supporting roller groups 320 are sequentially hung below adjacent two upper supporting roller groups 310,

[0067] The lower supporting roller group 320 is respectively provided with a first connecting piece 321 and a second connecting piece 322, the first connecting piece 321 is movably connected with two first connecting rods 323, and the second connecting piece 322 is movably connected with two second connecting rods 324;

[0068] The two first connecting rods 323 and the two second connecting rods 324 are movably connected at one end with the first connecting piece 321 and the second connecting piece 322 respectively, and the other end of the two first connecting rods 323 and the two second connecting rods 324 is movably connected with the mobile trolley 300 at the two ends of the upper supporting roller group 310 between the adjacent two lower supporting roller groups 320, thereby forming a hinged connecting rod mechanism.

[0069] The first connecting rods 323 and the second connecting rods 324 close to each other in the adjacent two lower supporting roller groups 320 are commonly connected to the mobile trolley 300 at the two ends of the upper supporting roller group 310 between the two lower supporting roller groups 320.

[0070] Further, in order to facilitate the disassembly of the standard fuselage frame 2, the first fixed short support unit 140, the second fixed short support unit 150 and the plurality of mobile short support units 160 can move autonomously, the mobile trolley at the top of the first fixed short support unit 140 is driven by a hydraulic motor, so that the first fixed short support unit 140 can move towards the second fixed short support unit 150, and move and compress the plurality of mobile short support units 160 between the first fixed short support unit 140 and the second fixed short support unit 150 by moving.

[0071] Further, in order to facilitate the first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130 to extend outward from the retracted state, the mobile trolley 300 on the second fixed high support unit 120 is driven by a hydraulic motor.

[0072] Thus, by the mobile trolley 300 on the top of the second fixed high support unit 120 driving it to move towards the standard fuselage frame 2, the circular link chain 400 is elongated to drive the adjacent mobile high support unit 130 to move during the movement, and so on, so that the first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130 can be unfolded;

[0073] When the high support unit is unfolded, a winch can be arranged on the overhead rail beam 200 to pull the second fixed high support unit 120 to move forward.

[0074] Further, the first support leg 111 in the first fixed high support unit 110, the second fixed high support unit 120, and the plurality of mobile high support units 130 is designed to be retractable, and when it is necessary to move, the lower part of the high support is appropriately retracted to be away from the ground, so that the resistance is greatly reduced.

[0075] In order to reduce the resistance of the high support unit to the ground, after the hinged connecting rod mechanism between the two groups of high support units is unfolded, the first support leg 111 is unfolded to be in contact with the ground, thereby supporting the overhead rail beam 200.

[0076] The following illustrates the working process of the application in specific application, and it should be noted that the content described herein is only a specific application example of the application, and does not limit the application.

[0077] When the self-moving tail 1 pushes the hanging rail beam 200 to move towards the standard fuselage frame 2, the arrangement length of the hanging rail beam 200 on the standard fuselage frame 2 gradually increases, and due to the pushing force of the self-moving tail 1, the hanging rail beam 200 and the first fixed high support unit 110 and the second fixed short support unit 150 connected with the hanging rail beam 200 respectively move towards the standard fuselage frame 2, the first fixed high support unit 110 gradually moves and approaches the adjacent moving high support unit 130, and the articulated connecting rod mechanism between the first fixed high support unit 110 and the adjacent moving high support unit 130 can be retracted, and with the continuous pushing of the self-moving tail 1, a plurality of adjacent moving high support units 130 and the second fixed high support unit 120 and the adjacent moving high support unit 130 are completely compressed, and at the same time, the second fixed short support unit 150 connected with the hanging rail beam 200 is moved and reaches the maximum length through the circular ring chain 400 on the moving trolley 300 at the top of the second fixed short support unit 150, and then drives the adjacent moving short support unit 160 to move, and so on, until a plurality of moving short support units 160 are completely unfolded, at this time, the transition frame is completely retracted, and a retracted state as shown in Figure 6 is formed.

[0078] After the telescopic fuselage section is completely retracted, the machine needs to be stopped and the corresponding length of the standard fuselage frame 2 is removed. First, the first fixed short support unit 140 and the second fixed high support unit 120 are disconnected, the first fixed section support unit 140 is moved through the moving trolley 300 at the top towards the direction away from the self-moving tail 1 and drives a plurality of moving short support units 160 to move and be compressed between the first fixed short support unit 140 and the second fixed short support unit 150.

[0079] The standard fuselage frame 2 is removed, and the two rails 143 are directly moved forward for installation, forming the rails of the next working cycle. Due to the long beam, while one section (3m) of the standard fuselage frame 2 is removed, the frame needs to be unfolded and supported by the high support unit. The second fixed high support unit 120 is moved forward towards the standard fuselage frame 2 by the moving trolley 300, and due to the circular ring chain 400 between the moving trolleys 300, the second fixed high support unit 120 drives a plurality of moving high support units 130 and the first fixed high support unit 110 to move and unfold, and this process is repeated for several times to completely unfold. After unfolding, the second fixed high support unit 120 is connected with the first fixed short support unit 140 to form an extended state as shown in Figure 7 , and finally the straightness of the rails and the flatness of the ground are adjusted to start the next working cycle.

[0080] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A catenary link belt conveyor self-moving telescopic transition frame, characterized in that, Including the frame, overhead rails and beams, The frame is composed of a first fixed high support unit, a second fixed high support unit, several movable high support units, a first fixed short support unit, a second fixed short support unit, and several movable short support units. The first fixed high support unit, the second fixed high support unit, and several movable high support units are arranged between the self-propelled tail section and the standard fuselage frame, and their bottoms are movably mounted on the ground. The first fixed short support unit, the second fixed short support unit, and several movable short support units are movably mounted on the top of the standard machine frame at their bottoms; The tops of the first fixed high support unit, the second fixed high support unit, several movable high support units, the first fixed short support unit, the second fixed short support unit, and several movable short support units are connected to the bottom of the hanging rail beam via a moving trolley. The first fixed high support unit is fixedly connected to the overhead rail beam and the self-moving tail section, the second fixed high support unit is fixed to the first fixed short support unit, and a plurality of movable high support units are movably located between the first fixed high support unit and the second fixed high support unit. The first fixed short support unit is connected to the standard frame and the second fixed high support unit respectively. The second fixed high support unit is connected to the hanging rail beam. Several movable short support units are movably located between the first fixed short support unit and the second fixed short support unit. The first fixed high support unit, the second fixed high support unit, and several movable high support units are all equipped with upper and lower rollers. Several sets of upper roller groups and several sets of lower roller groups are connected together by a hinged linkage mechanism and are collectively suspended on the overhead rail beam by a moving trolley. Adjacent moving carts are connected by a circular chain of fixed length.

2. The overhead track link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, The overhead rail beam consists of two parallel rail beams connected by several connecting rods, which link the two rail beams together. The rail beams allow the trolley to move along them.

3. The overhead trolley link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, The first fixed high support unit, the second fixed high support unit, and several movable high support units have the same structure, each including two first support legs and a crossbar connecting the two first support legs; The two first support legs correspond to the two track beams respectively. The top of the first support leg is movably connected to the bottom of the track beam via a moving trolley. The bottom of the first support leg is provided with a self-propelled wheel, which is supported on the ground. The crossbar is equipped with a lower support roller, and an upper support roller is connected between the two first support legs. The upper support roller is located vertically above the lower support roller.

4. The overhead trolley link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, The first fixed short support unit, the second fixed short support unit, and several movable short support units have the same structure, each including two second support legs. The two second support legs are supported between the hanging rail beam and the standard machine frame. The top of the second support leg is movably connected to the bottom of the hanging rail beam through a movable trolley. The bottom of the second support leg is provided with a rolling wheel. The two sides of the standard machine frame are respectively provided with tracks that can accommodate the rolling wheel.

5. The overhead track link belt conveyor self-moving telescopic transition frame according to claim 2, characterized in that, The several upper supporting roller groups are arranged between the two track beams of the hanging track beam in sequence and are movably connected to the two track beams by the moving trolleys at two ends, The several lower supporting roller groups are hung below the two adjacent upper supporting roller groups in sequence, the lower supporting roller groups are respectively provided with first connecting members and second connecting members at two ends, the first connecting members are movably connected with two first connecting rods, and the second connecting members are movably connected with two second connecting rods; The two first connecting rods and the two second connecting rods are movably connected with the first connecting members and the second connecting members at one end, and the other ends of the two first connecting rods and the two second connecting rods are movably connected with the moving trolleys at two ends of the two adjacent upper supporting roller groups, so as to form a hinged connecting rod mechanism. The first connecting rods close to each other and the second connecting rods close to each other in the two adjacent lower supporting roller groups are jointly connected to the moving trolleys at two ends of the upper supporting roller groups between the two lower supporting roller groups.

6. The overhead trolley link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, The moving trolleys at the top of the first fixed short supporting unit are driven by hydraulic motors.

7. The overhead trolley link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, The moving trolleys on the second fixed high supporting unit are driven by hydraulic motors.

8. The overhead trolley link belt conveyor self-moving telescopic transition frame according to claim 1, characterized in that, A winch is arranged on the hanging track beam, and the second fixed high supporting unit is pulled forward by the winch.

9. The overhead track link belt conveyor self-moving telescopic transition frame according to claim 3, characterized in that, The first fixed high supporting unit, the second fixed high supporting unit and the first supporting legs in the several movable high supporting units are designed as retractable structures.

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