Transportation device of heading machine

Abstract

The utility model relates to the technical field of transportation devices, in particular to a transportation device of a heading machine. The problem that in the prior art, a harvester conveying belt is low in conveying efficiency is solved, and the practicability of equipment is improved. The device structurally comprises a fixing frame, a conveying belt is rotationally connected to the fixing frame, a driving structure used for driving the conveying belt is arranged on the fixing frame, a plurality of conveying boxes are arranged on the conveying belt, and mounting structures used for mounting the conveying boxes on the conveying belt are arranged on the conveying boxes. A speed reducing structure used for reducing the conveying speed of the conveying box relative to the conveying belt is arranged between the mounting structure and the conveying belt, and a control structure used for controlling the speed reducing structure is further arranged on the fixing frame. On the basis of guaranteeing that materials can be transported at a high speed in the transportation stage, the transportation speed of the transportation box can be reduced in the loading stage, the materials are prevented from being splashed out of the transportation box, and the transportation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation devices, and specifically, to a transportation device for a roadheader. Background Art

[0002] A roadheader is a heavy mechanical equipment used for underground excavation and construction projects. Among them, the transportation device is a device that transports materials from the scraper plate part of the roadheader to the area where the materials are processed.

[0003] In order to achieve more efficient transportation of materials, the existing transportation devices for roadheaders often adopt the transportation form of a scraper chain, and the materials to be transported are transported through the scraper driving the materials.

[0004] Although this can achieve the transportation of materials, there are still the following disadvantages: when the conveyor belt is loading materials, since there is a large difference between the moving speed of the materials when they fall onto the conveyor belt and the moving speed of the conveyor belt, if the moving speed of the conveyor belt is too fast at this time, the materials are likely to splash and break away from the conveyor belt. After entering the conveyor belt, the difference in the moving speed of the materials relative to the conveyor belt is small, and then it can run at an accelerated speed. And it is difficult to achieve different moving speeds at different positions during the transportation process of the conveyor belt. Therefore, in order to adapt to the moving speed of loading, the overall moving speed of the conveyor belt needs to be reduced, which affects the conveying efficiency of the conveyor belt. Content of the Utility Model

[0005] The utility model provides a transportation device for a roadheader, which solves the problem of low conveying efficiency of the conveyor belt of the harvester in the prior art and improves the practicability of the equipment.

[0006] The technical solution of the utility model is as follows:

[0007] A transportation device for a roadheader includes a fixed frame,

[0008] A conveyor belt is rotatably connected to the fixed frame, a driving structure for driving the conveyor belt is provided on the fixed frame, a plurality of transport boxes are provided on the conveyor belt, an installation structure for installing the transport boxes onto the conveyor belt is provided on the transport boxes, a deceleration structure for slowing down the transport speed of the transport boxes relative to the conveyor belt is provided between the installation structure and the conveyor belt, and a control structure for controlling the deceleration structure is further provided on the fixed frame.

[0009] Furthermore, the installation structure includes a rotating member, a connecting member is rotatably connected to the rotating member, an installation screw is provided on the connecting member, a first sliding hole is provided in the transport box, the installation screw is slidably connected to the first sliding hole, and a locking bolt threadedly connected to the installation screw is provided in the transport box.

[0010] Furthermore, the rotating member includes a base plate, and a first connecting plate and a second connecting plate are fixed at both ends of the base plate. The first connecting plate and the second connecting plate are both perpendicular to the base plate, and the first connecting plate and the second connecting plate are parallel to each other. Arc surfaces are fixed on the tops of the first connecting plate and the second connecting plate.

[0011] Furthermore, the cross-section of the connecting member is a "冂"-shaped structure, and the connecting member includes a third connecting plate, and parallel fourth connecting plates and fifth connecting plates are provided at both ends of the third connecting plate, the first connecting plate and the second connecting plate are arranged between the fourth connecting plate and the fifth connecting plate, and are rotatably connected to the fourth connecting plate and the fifth connecting plate respectively, and the mounting screw is fixedly arranged on the top of the third connecting plate.

[0012] Furthermore, the deceleration structure includes a deceleration spring, a first limit plate is fixed between the end of the first connecting plate and the end of the second connecting plate, the first limit plate is fixedly connected to the bottom plate, a second sliding hole is provided on the first limit plate, a limiting screw is slidingly connected to the second sliding hole, a second limit plate is fixed on the conveyor belt, one end of the limit screw is fixedly connected to the second limit plate, and the limit screw is threadedly connected to the limiting bolt away from the end of the second limit plate.

[0013] Furthermore, the conveyor belt is also provided with a first sliding rail and a second sliding rail, and the first sliding rail and the second sliding rail are respectively provided with a first sliding groove and a second sliding groove, the sliding directions of the first sliding groove and the second sliding groove are parallel to the conveying direction of the conveyor belt, the cross-sections of the first sliding groove and the second sliding groove are both "convex" structures, and the two ends of the second limiting plate are fixedly connected to the first sliding rail and the second sliding rail respectively, and the first connecting plate is fixed with a first sliding block that is slidably connected to the first sliding groove, and the second connecting plate is fixed with a second sliding block that is slidably connected to the second sliding groove.

[0014] Furthermore, the control structure includes a third limit plate arranged at the feed end of the conveyor belt, the fixed frame is provided with a first support plate and a second support plate, both ends of the third limit plate are rotatably connected with the first support plate and the second support plate respectively, the first support plate and the second support plate are parallel to each other and are respectively arranged on both sides of the conveyor belt, a sixth connecting plate is fixed to the top of the first support plate close to the conveyor belt side, a seventh connecting plate is fixed to the top of the second support plate close to the conveyor belt side, a first limit tension spring is fixed between the sixth connecting plate and the third limit plate, and a second limit tension spring is fixed between the seventh connecting plate and the third limit plate.

[0015] Furthermore, the projection plane of the transport box in the vertical direction is a rectangular structure. The bottom of the transport box is provided with support feet. The number of the support feet is four, and they are respectively fixedly arranged at the four corner ends of the transport box. A rotating wheel is rotatably connected to the bottom of each support foot, and there is a gap between the support feet and the belt surface of the conveyor belt.

[0016] Furthermore, the conveyor belt includes a driving roller and a driven roller. A belt surface is connected between the driving roller and the driven roller. A plurality of connecting tooth protrusions are provided on the side surface of the belt surface close to the driving roller. The connecting tooth protrusions are meshed with both the driving roller and the driven roller at the same time. A plurality of chute tooth protrusions are provided on the side surface of the belt surface far from the driving roller. The chute tooth protrusions are perpendicular to the connecting tooth protrusions.

[0017] Furthermore, the driving structure includes a driving motor. A control box is fixed on the fixing frame. A first rotating wheel fixedly connected to the output shaft of the driving motor and a second rotating wheel fixedly connected to the driving roller are arranged in the control box. The horizontal height of the first rotating wheel is lower than that of the second rotating wheel. A connecting belt is connected between the first rotating wheel and the second rotating wheel. An installation member is also installed in the control box. The installation member includes a first installation surface and a second installation surface perpendicular to the first installation surface. The first installation surface is fixedly connected to the control box by bolts. A third sliding hole is provided on the second installation surface. An adjusting screw is slidably connected to the third sliding hole. A tensioning wheel assembly is fixed to one end of the adjusting screw. The tensioning wheel assembly abuts against the connecting belt. An adjusting bolt is threadedly connected to the other end of the adjusting screw. A third limiting spring is fixed between the tensioning wheel assembly and the second installation surface.

[0018] The working principle and beneficial effects of the present utility model are as follows:

[0019] The working process of this embodiment: When the transport box on the conveyor belt reaches the third limiting plate at the feeding end of the conveyor belt, the movement of the transport box is restricted, and the transport box temporarily stays at the feeding end of the conveyor belt. At this time, the materials harvested by the harvester can smoothly enter the transport box without splashing out of the transport box while ensuring that the conveyor belt does not decelerate. After a period of time, as the conveyor belt moves, the deceleration spring is further compressed, and the elastic force of the deceleration spring increases. When the elastic force provided by the deceleration spring is greater than the elastic forces provided by the first limiting spring and the second limiting spring, the third limiting plate rotates and does not limit the transport box. Under the action of the elastic force of the deceleration spring, the transport box accelerates to catch up with the movement speed of the conveyor belt. When the transport box passes through the end of the conveyor belt, the materials in the transport box are turned over and poured out through the conveyor belt, completing the transport work.

[0020] In this embodiment, a number of transport boxes are arranged on the conveyor belt, a deceleration structure is arranged on the conveyor belt, and a control structure is arranged on the fixed frame. The control structure and the deceleration structure are used to decelerate the transport boxes near the feeding end while ensuring the normal transmission speed of the conveyor belt. The conveyor belt of the present utility model replaces the design of adding partitions on the conveyor belt in the prior art, enabling the present utility model to transport materials at a relatively fast speed during the transportation stage, and reducing the transport speed of the transport boxes during the loading stage to prevent materials from splashing out of the transport boxes, thereby improving the transport efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0022] Figure 1 is a schematic structural diagram of the prior art for this embodiment;

[0023] Figure 2 is a schematic diagram of the overall structure of this embodiment Figure 1 ;

[0024] Figure 3 is a schematic diagram of the overall structure of this embodiment Figure 2 ;

[0025] Figure 4 is a schematic structural diagram of the deceleration structure in this embodiment Figure 1 ;

[0026] Figure 5 is a schematic structural diagram of the deceleration structure in this embodiment Figure 2 ;

[0027] Figure 6 is a schematic internal structural diagram of the deceleration structure in this embodiment;

[0028] Figure 7 is a schematic internal structural diagram of the control box in this embodiment;

[0029] Figure 8 is a schematic connection structural diagram of the tensioning wheel assembly.

[0030] In the figure:

[0031] 1. Fixed frame; 11. First support plate; 111. Sixth connecting plate; 112. First limiting spring; 12. Second support plate; 121. Seventh connecting plate; 122. Second limiting spring; 13. Third limiting plate; 2. Conveyor belt; 21. Driving roller; 22. Driven roller; 23. Belt surface; 231. Connecting tooth convex; 232. Chute tooth convex; 3. Control box; 31. First rotating wheel; 32. Second rotating wheel; 33. Tensioning wheel assembly; 34. Mounting part; 341. First mounting surface; 342. Second mounting surface; 3421. Third sliding hole; 35. Connecting belt; 36. Adjusting screw; 361. Adjusting bolt; 362. Third limiting spring; 4. Transport box; 41. Support feet; 411. Rotating wheel; 42. First sliding hole; 51. First sliding rail; 511. First sliding groove; 52. Second sliding rail; 521. Second sliding groove; 6. Connecting piece; 61. Mounting screw; 611. Locking bolt; 62. Third connecting plate; 63. Fourth connecting plate; 64. Fifth connecting plate; 7. Rotating piece; 71. Bottom plate; 72. First connecting plate; 721. First sliding block; 722. Arc surface; 73. Second connecting plate; 731. Second sliding block; 74. First limiting plate; 741. Second sliding hole; 75. Second limiting plate; 8. Limiting screw; 81. Limiting bolt; 811. Deceleration spring; 9. Driving motor. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0033] As Figures 2 to 8 shown, a tunneling machine transportation device has a structure including a fixed frame 1. In this embodiment, the conveyor belt 2 is rotatably arranged on the fixed frame 1, and a driving structure is arranged on the fixed frame 1 to drive the conveyor belt 2. A plurality of transport boxes 4 are arranged on the conveyor belt 2. A mounting structure is arranged on the transport box 4 to mount the transport box 4 onto the conveyor belt 2. A deceleration structure is arranged between the mounting structure and the conveyor belt 2 to slow down the transportation speed of the transport box 4 relative to the conveyor belt 2. A control structure is arranged on the fixed frame 1 to control the deceleration structure.

[0034] The installation structure in this embodiment includes a rotating member 7, and a connecting member 6 is rotatably connected to the rotating member 7. When the conveyor belt 2 enters a turn, the transport box 4 is separated from the contact with the conveyor belt 2, and can turn in advance under the action of gravity, and the materials in the transport box 4 can be poured out in advance. The mounting screw 61 is arranged on the connecting member 6, the first sliding hole 42 is arranged in the transport box 4, the mounting screw 61 is slidably connected with the first sliding hole 42, and the locking bolt 611 is arranged in the transport box 4, which is threadedly connected with the mounting screw 61. This design is to allow the user to adjust the distance between the transport box 4 and the belt surface 23 of the conveyor belt 2 by adjusting the locking bolt 611 to prevent the gap from being too large and the transport box 4 from shaking during transportation.

[0035] The rotating member 7 in this embodiment includes a bottom plate 71, a first connecting plate 72 and a second connecting plate 73 fixedly arranged at both ends of the bottom plate 71, the first connecting plate 72 and the second connecting plate 73 are both perpendicular to the bottom plate 71, the first connecting plate 72 and the second connecting plate 73 are parallel to each other, and arc surfaces 722 are fixed on the tops of the first connecting plate 72 and the second connecting plate 73 to facilitate the first connecting plate 72 and the second connecting plate 73 not to collide with the connecting member 6 when the rotating member 7 rotates relative to the connecting member 6. The design of the first connecting plate 72 and the second connecting plate 73 allows the two side surfaces of the rotating member 7 to be rotatably connected to the connecting member 6, and the connection is more stable.

[0036] The cross section of the connecting member 6 in this embodiment is a "冂"-shaped structure. The connecting member 6 includes a third connecting plate 62, and a fourth connecting plate 63 and a fifth connecting plate 64 are arranged at both ends of the third connecting plate 62, and they are parallel to each other. The first connecting plate 72 and the second connecting plate 73 are arranged between the fourth connecting plate 63 and the fifth connecting plate 64, and are rotatably connected to the fourth connecting plate 63 and the fifth connecting plate 64 respectively, and the mounting screw 61 is fixedly arranged on the top of the third connecting plate 62. The design of inserting the rotating member 7 into the connecting member 6 saves the volume of the connecting member 6 and the rotating member 7 to the greatest extent, reduces the manufacturing cost, and reduces the height difference between the transport box 4 and the belt surface 23 of the conveyor belt 2, making the equipment more streamlined.

[0037] The deceleration structure in this embodiment includes a deceleration spring 811. The first limiting plate 74 is fixedly arranged between the ends of the first connecting plate 72 and the second connecting plate 73. The first limiting plate 74 is fixedly connected to the bottom plate 71, and a second sliding hole 741 is arranged on the first limiting plate 74. The limiting screw 8 is slidably connected to the second sliding hole 741. The second limiting plate 75 is fixedly arranged on the conveyor belt 2, and one end of the limiting screw 8 is fixedly connected to the second limiting plate 75. The limiting bolt 81 is threadedly connected to the end of the limiting screw 8 away from the second limiting plate 75. By adjusting the limiting bolt 81, the stroke of the deceleration spring 811 can be adjusted, and the user can adjust the time for the transport box 4 to stay relative to the control structure by adjusting the position of the limiting bolt 81. Under the action of the deceleration spring 811 in this embodiment, the transport box 4 can generate an acceleration relative to the conveyor belt 2, and the transport box 4 can catch up with the conveyor belt 2 on the basis of breaking away from the control structure.

[0038] The first sliding rail 51 and the second sliding rail 52 in this embodiment are arranged on the conveyor belt 2. The first sliding groove 511 and the second sliding groove 521 are respectively arranged on the first sliding rail 51 and the second sliding rail 52. The sliding directions of the first sliding groove 511 and the second sliding groove 521 are parallel to the transport direction of the conveyor belt 2. The cross-sections of the first sliding groove 511 and the second sliding groove 521 are both "convex" structures. The two ends of the second limiting plate 75 are fixedly connected to the first sliding rail 51 and the second sliding rail 52 respectively. The first sliding block 721 is fixedly arranged on the first connecting plate 72 and is slidably connected to the first sliding groove 511. The second sliding block 731 is fixedly arranged on the second connecting plate 73 and is slidably connected to the second sliding groove 521. The first sliding rail 51 and the second sliding rail 52 in this embodiment are both made of rubber material to facilitate the turning of the conveyor belt 2. The first sliding rail 51 and the second sliding rail 52 in this embodiment can ensure that the rotating member 7 moves more stably relative to the conveyor belt 2 and reduce the occurrence of deviation phenomena.

[0039] The control structure in this embodiment includes a third limit plate 13, which is arranged at the feeding end of the conveyor belt 2. The first support plate 11 and the second support plate 12 are arranged on the fixed frame 1, and the two ends of the third limit plate 13 are rotatably connected to the first support plate 11 and the second support plate 12 respectively. The first support plate 11 and the second support plate 12 are parallel to each other and are arranged on both sides of the conveyor belt 2 respectively. The sixth connecting plate 111 is fixedly arranged at the top of the first support plate 11 close to the conveyor belt 2 side, and the seventh connecting plate 121 is fixedly arranged at the top of the second support plate 12 close to the conveyor belt 2 side. The first limit tension spring 112 is fixedly arranged between the sixth connecting plate 111 and the third limit plate 13, and the second limit tension spring 122 is fixedly arranged between the seventh connecting plate 121 and the third limit plate 13. In this embodiment, the first limit tension spring 112 and the second limit tension spring 122 are not subjected to external forces, and the third limit plate 13 can remain vertical relative to the belt surface 23 of the conveyor belt 2, so as to ensure better interception of the transport box 4. When the transport box 4 contacts the third limit plate 13, the transport box 4 is intercepted, which facilitates the loading of materials in the transport box 4, reduces the relative movement between the transport box 4 and the loaded materials, and reduces the splashing of materials from the transport box 4. When the transport box 4 in this embodiment is transported to abut against the third limit plate 13, the previous transport box 4 can only be separated from the restriction of the third limit plate 13 under the elastic force of the deceleration spring 811 until the next transport box 4 abuts against the previous transport box 4. This design ensures that during the loading stage, less materials fall onto the conveyor belt 2.

[0040] The vertical projection surface of the transport box 4 in this embodiment is a rectangular structure, and the support legs 41 are arranged at the bottom of the transport box 4. There are four support legs 41, which are respectively fixed at the four corners of the transport box 4, and the bottom of each support leg 41 is rotatably connected with a rotating wheel 411. The design of the four support legs 41 not only satisfies the full contact between the transport box 4 and the conveyor belt 2, but also saves the material of the transport box 4 to the greatest extent, effectively reducing the manufacturing cost. The rotating wheel 411 is used to reduce the friction between the support legs and the conveyor belt 2.

[0041] The conveyor belt 2 in this embodiment includes a driving roller 21 and a driven roller 22, a belt surface 23 is connected between the driving roller 21 and the driven roller 22, a plurality of connecting teeth 231 are arranged on the side of the belt surface 23 close to the driving roller 21, the connecting teeth 231 are meshed with the driving roller 21 and the driven roller 22 at the same time, a plurality of chute teeth 232 are arranged on the side of the belt surface 23 away from the driving roller 21, the chute teeth 232 are perpendicular to the connecting teeth 231. The supporting feet 41 in this embodiment are embedded between the chute teeth 232, ensuring that the transport box 4 will not be offset during the sliding process.

[0042] The drive structure in this embodiment includes a drive motor 9, and the control box 3 is fixedly arranged on the fixed frame 1. The first rotating wheel 31 and the second rotating wheel 32 are arranged in the control box 3. Among them, the first rotating wheel 31 is fixedly connected to the output shaft of the drive motor 9, and the second rotating wheel 32 is fixedly connected to the driving roller 21. The horizontal height of the first rotating wheel 31 is lower than that of the second rotating wheel 32. Such a design enables the drive motor 9 to be installed at the bottom of the fixed frame 1 to drive the conveyor belt 2. A connecting belt 35 is connected between the first rotating wheel 31 and the second rotating wheel 32. An installation member 34 is also installed in the control box 3. The installation member 34 includes a first installation surface 341 and a second installation surface 342 perpendicular to the first installation surface 341. The first installation surface 341 is fixedly connected to the control box 3 by bolts. A third sliding hole 3421 is provided on the second installation surface 342. An adjusting screw 36 is slidably connected to the third sliding hole 3421. One end of the adjusting screw 36 is fixed with a tensioning wheel assembly 33. The tensioning wheel assembly 33 abuts against the connecting belt 35. The other end of the adjusting screw 36 is threadedly connected with an adjusting bolt 361. A third limiting spring 362 is fixed between the tensioning wheel assembly 33 and the second installation surface 342. By adjusting the position of the adjusting bolt 361, the tensioning degree of the tensioning wheel on the connecting belt 35 can be realized, ensuring that the drive motor 9 drives the conveyor belt 2 to move stably.

[0043] The working process of this embodiment: When the transport box 4 on the conveyor belt 2 reaches the third limiting plate 13 at the feeding end of the conveyor belt 2, the movement of the transport box 4 is restricted, and the transport box 4 temporarily stays at the feeding end of the conveyor belt 2. At this time, the materials harvested by the harvester can enter the transport box 4 smoothly without splashing out of the transport box 4 while ensuring that the conveyor belt 2 does not decelerate. After a period of time, as the conveyor belt 2 moves, the deceleration spring 811 is further compressed, and the elastic force of the deceleration spring 811 increases. When the elastic force provided by the deceleration spring 811 is greater than the elastic forces provided by the first limiting spring 112 and the second limiting spring 122, the third limiting plate 13 rotates and does not limit the transport box 4. Under the action of the elastic force of the deceleration spring 811, the transport box 4 accelerates to catch up with the moving speed of the conveyor belt 2. When the transport box 4 passes through the end of the conveyor belt 2, the materials in the transport box 4 are overturned and poured out through the conveyor belt 2 to complete the transportation work.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunneling machine transportation device, comprising a fixing frame (1), characterized in that, a conveyor belt (2) is rotatably connected to the fixing frame (1), a driving structure for driving the conveyor belt (2) is provided on the fixing frame (1), a plurality of transport boxes (4) are provided on the conveyor belt (2), an installation structure for installing the transport box (4) onto the conveyor belt (2) is provided on the transport box (4), a deceleration structure for slowing down the relative transportation speed of the transport box (4) with respect to the conveyor belt (2) is provided between the installation structure and the conveyor belt (2), and a control structure for controlling the deceleration structure is further provided on the fixing frame (1).

2. A roadheader transport device according to claim 1, characterized in that: The installation structure includes a rotating member (7), a connecting member (6) is rotatably connected to the rotating member (7), an installation screw (61) is provided on the connecting member (6), a first sliding hole (42) is provided in the transport box (4), the installation screw (61) is slidably connected to the first sliding hole (42), and a locking bolt (611) threadedly connected to the installation screw (61) is provided in the transport box (4).

3. A roadheader transport device according to claim 2, characterized in that: The rotating member (7) includes a bottom plate (71), a first connecting plate (72) and a second connecting plate (73) are fixed at both ends of the bottom plate (71), both the first connecting plate (72) and the second connecting plate (73) are perpendicular to the bottom plate (71), the first connecting plate (72) and the second connecting plate (73) are parallel to each other, and arc surfaces (722) are fixed at the tops of the first connecting plate (72) and the second connecting plate (73).

4. A roadheader transport device according to claim 3, characterized in that: The cross-section of the connecting member (6) is a "冂”-shaped structure. The connecting member (6) includes a third connecting plate (62), parallel fourth connecting plates (63) and fifth connecting plates (64) are provided at both ends of the third connecting plate (62), the first connecting plate (72) and the second connecting plate (73) are arranged between the fourth connecting plate (63) and the fifth connecting plate (64) and are rotatably connected to the fourth connecting plate (63) and the fifth connecting plate (64) respectively, and the installation screw (61) is fixedly provided at the top of the third connecting plate (62).

5. A roadheader transport device according to claim 3, characterized in that: The deceleration structure includes a deceleration spring (811), a first limiting plate (74) is fixed between the end of the first connecting plate (72) and the end of the second connecting plate (73), the first limiting plate (74) is fixedly connected to the bottom plate (71), a second sliding hole (741) is provided on the first limiting plate (74), a limiting screw (8) is slidably connected to the second sliding hole (741), a second limiting plate (75) is fixed on the conveyor belt (2), one end of the limiting screw (8) is fixedly connected to the second limiting plate (75), and a limiting bolt (81) is threadedly connected to the end of the limiting screw (8) away from the second limiting plate (75).

6. A roadheader transport device according to claim 5, characterized in that: The conveyor belt (2) is also provided with a first sliding rail (51) and a second sliding rail (52), and the first sliding rail (51) and the second sliding rail (52) are respectively provided with a first sliding groove (511) and a second sliding groove (521), and the sliding direction of the first sliding groove (511) and the second sliding groove (521) is parallel to the conveying direction of the conveyor belt (2), and the cross-sections of the first sliding groove (511) and the second sliding groove (521) are both "convex" structures, and the two ends of the second limiting plate (75) are respectively fixedly connected to the first sliding rail (51) and the second sliding rail (52), and the first connecting plate (72) is fixed with a first sliding block (721) that is slidably connected to the first sliding groove (511), and the second connecting plate (73) is fixed with a second sliding block (731) that is slidably connected to the second sliding groove (521).

7. A roadheader transport device according to claim 1, characterized in that: The control structure comprises a third limit plate (13) arranged at the feeding end of the conveyor belt (2); a first support plate (11) and a second support plate (12) are arranged on the fixed frame (1); two ends of the third limit plate (13) are rotatably connected to the first support plate (11) and the second support plate (12), respectively; the first support plate (11) and the second support plate (12) are parallel to each other and are respectively arranged on both sides of the conveyor belt (2); a sixth connecting plate (111) is fixed to the top of the first support plate (11) close to the conveyor belt (2); a seventh connecting plate (121) is fixed to the top of the second support plate (12) close to the conveyor belt (2); a first limit tension spring (112) is fixed between the sixth connecting plate (111) and the third limit plate (13); and a second limit tension spring (122) is fixed between the seventh connecting plate (121) and the third limit plate (13).

8. A roadheader transport device according to claim 1, characterized in that: The projection surface of the transport box (4) in the vertical direction is a rectangular structure. The bottom of the transport box (4) is provided with supporting feet (41). The number of the supporting feet (41) is four and they are respectively fixedly arranged at the four corner ends of the transport box (4). The bottom of each supporting foot (41) is rotatably connected to a rotating wheel (411).

9. A roadheader transport device according to claim 1, characterized in that: The conveyor belt (2) comprises a driving roller (21) and a driven roller (22), wherein a belt surface (23) is connected between the driving roller (21) and the driven roller (22), wherein a side of the belt surface (23) close to the driving roller (21) is provided with a plurality of connecting teeth (231), wherein the connecting teeth (231) are meshed with the driving roller (21) and the driven roller (22) at the same time, and a side of the belt surface (23) away from the driving roller (21) is provided with a plurality of sliding groove teeth (232), wherein the sliding groove teeth (232) are perpendicular to the connecting teeth (231).

10. A roadheader transport device according to claim 9, characterized in that: The driving structure comprises a driving motor (9); a control box (3) is fixed on the fixing frame (1); a first rotating wheel (31) fixedly connected to an output shaft of the driving motor (9) and a second rotating wheel (32) fixedly connected to an active roller (21) are arranged in the control box (3); a horizontal height of the first rotating wheel (31) is lower than a horizontal height of the second rotating wheel (32); a connecting belt (35) is connected between the first rotating wheel (31) and the second rotating wheel (32); a mounting member (34) is also arranged in the control box (3); the mounting member (34) comprises a first mounting surface (341) and a mounting member (342) connected to the first mounting surface (343). 41) a second mounting surface (342) vertical to the control box (3), the first mounting surface (341) is fixed to the control box (3) by bolts, the second mounting surface (342) is provided with a third sliding hole (3421), the third sliding hole (3421) is slidingly connected with an adjusting screw (36), one end of the adjusting screw (36) is fixed with a tensioning wheel assembly (33), the tensioning wheel assembly (33) is abutted against the connecting belt (35), the other end of the adjusting screw (36) is threadedly connected with an adjusting bolt (361), and a third limit spring (362) is fixed between the tensioning wheel assembly (33) and the second mounting surface (342).

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