Tunnel construction rubber-tyred vehicle U-turn platform

Abstract

The utility model discloses a tunnel construction rubber-tyred vehicle U-turn platform, and belongs to the technical field of tunnel construction equipment. The base is arranged in the front-back direction, the two approach bridges are arranged at the front end and the rear end of the base, the U-turn platform is arranged on the base and can rotate by 180 degrees, the rotation driving mechanism drives the U-turn platform to rotate, and the approach bridges obliquely upwards extend to the top of the base or the U-turn platform from the bottom of a tunnel; the approach bridge sequentially comprises a lower floating part and an upper walking part from bottom to top, the upper end of the upper walking part is hinged to the corresponding end of the base through a vertical first rotating shaft, the lower floating part and the upper walking part are hinged through a second rotating shaft in the left-right direction, and an elastic buffering mechanism is arranged between the bottoms of the lower floating part and the upper walking part in the direction where the approach bridge is located. The lower end of the lower floating part abuts against the rail and can elastically swing up and down around the second rotating shaft, the bottom of the base and the bottom of the upper walking part are each provided with a walking mechanism, the walking mechanisms are arranged on the rail in a sliding mode, and anti-roll mechanisms are arranged between the left side and the right side of the base and the tunnel. The movement is easy.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel construction equipment, and particularly relates to a tunnel construction rubber -tyred vehicle turning platform, and the turning platform is easy to move. BACKGROUND

[0002] With the development of modern tunneling construction technology, currently, horizontal transportation mainly adopts two modes of rail transportation and trackless transportation, and both modes need to realize bidirectional driving, and bidirectional driving is relatively simple on rail transportation.

[0003] Trackless transportation needs to be classified according to different working conditions to realize bidirectional driving transportation.

[0004] (1) a double -headed rubber -tyred transport vehicle can be used to realize bidirectional driving;

[0005] (2) when the space is relatively large, a common truck can be used to realize bidirectional transportation by turning in the hole.

[0006] (3) when the space is limited and the truck cannot turn, currently, a turning platform needs to be developed to follow the shield machine platform and complete the turning work of the material transport vehicle.

[0007] Patent No. CN202320404895.X discloses a tunnel vehicle turning platform, which comprises a drawbridge, a base, a rotary bearing, a rotary drive mechanism, a supporting wheel, a turning platform and a turning control rod, the front end and the rear end of the base are respectively connected with the drawbridge, the base is connected with the turning platform through the rotary bearing, the rotary drive mechanism is fixedly arranged on the base to drive the rotary bearing to move, the turning platform is rigidly connected with an arc-shaped track below, the supporting wheel is arranged on the base in the arc-shaped direction of the arc-shaped track, the turning platform is supported on the supporting wheel through the arc-shaped track, the center of the arc-shaped track is concentric with the center of the rotary bearing, the drawbridge and the turning platform cooperate to form a vehicle passage, and the front end and the rear end of the turning platform are respectively provided with the turning control rod for controlling the rotary drive mechanism.

[0008] The patent directly fixes the turning platform on the tunnel, and it is difficult to move the position; if the turning platform needs to be installed on site or transported by using corresponding tools, more time and manpower need to be consumed. UTILITY MODEL CONTENT

[0009] In order to solve the above problems, the utility model embodiment provides a tunnel construction rubber -tyred vehicle turning platform, which is easy to move. The technical scheme is as follows:

[0010] The utility model discloses an embodiment provides a kind of tunnel construction rubber wheel car platform, including the bottom 1 of being arranged along front and back, the two approach bridge 2 of the front and back ends of bottom 1, the platform 3 of being able to 180 ° rotation on bottom 1 and the rotary drive mechanism 4 of driving platform 3 rotation, the approach bridge 2 is by tunnel bottom obliquely upwards to the top of bottom 1 or platform 3 of turning around;The approach bridge 2 is sequentially from below to above lower floating part 21 and upper walking part 22, the upper end of the upper walking part 22 is hinged with the corresponding end of bottom 1 by vertical first rotation axis 23, and the bottom between lower floating part 21 and upper walking part 22 is hinged by second rotation axis 24 along left and right direction, and its bottom is provided with elastic buffering mechanism 25 along the direction of approach bridge 2, the lower end of lower floating part 21 is abutted on track 10 and it can be elastically swung up and down around second rotation axis 24, the bottom of bottom 1 and upper walking part 22 is each provided with walking mechanism 5, walking mechanism 5 is slidably arranged on track 10, the left and right sides of bottom 1 and tunnel are each provided with anti-tilting mechanism 6.

[0011] Wherein, the walking mechanism 5 in the utility model embodiment includes multiple groups of pulley blocks arranged side by side in front and back, each group of pulley blocks includes two pulley blocks arranged side by side in left and right, and the two pulley blocks are respectively arranged on the left and right sides of the platform.

[0012] Specifically, the front and rear of the upper walking part 22 in the utility model embodiment are each provided with a group of pulley blocks, and the front, middle and rear of the bottom 1 are each provided with a group of pulley blocks.

[0013] Wherein, the lower floating part 21 and the upper walking part 22 in the utility model embodiment are both rectangular plates arranged obliquely; the lower end of the lower floating part 21 is arranged horizontally along the front and back and abutted on the upper side of the track 10.

[0014] Wherein, the bottom 1 in the utility model embodiment includes a bottom plate 11 arranged along front and back and connecting plates 12 at the front and back ends thereof, the bottom plate 11 is provided with the walking mechanism 5, the rotary drive mechanism 4 is arranged between the top of the bottom plate 11 and the platform 3 and is located between the two connecting plates 12; the connecting plate 12 is fixed to the top of the bottom plate 11 through the vertical standing plate 13 at the corresponding end thereof, is located adjacent to the front or rear of the platform 3, is adjacent to the upper end of the upper walking part 22, is close to one side of the platform 3, is a circular arc concave surface matched with the platform 3, is flush with the upper end of the upper walking part 22 and the platform 3, and is arranged along the front and back; the end of the bottom plate 11 and the end of the connecting plate 12 away from the platform 3 are each hinged with the upper walking part 22 through a first rotation axis 23, and the first rotation axis 23 is located on the center line of the platform; the anti-tilting mechanism 6 is arranged on the left or right side of the bottom plate 11 and is located on the outer side of the corresponding side of the platform 3.

[0015] Wherein, the U-turn platform 3 in the utility model embodiment includes a circular plate 31 and two rectangular plates 32 at the front and back ends of the circular plate 31, the circular plate 31 is rotationally arranged on the bottom plate 11 and is located directly above the middle part of the bottom plate 11; the rectangular plate 32 is arranged along the front and back directions, and the end away from the circular plate 31 is a circular arc convex surface matched with the circular plate 31 and adjacent to the connecting plate 12 at the corresponding end.

[0016] Wherein, the rotary drive mechanism 4 in the utility model embodiment includes a ring gear 41 rotationally arranged on the bottom plate 11 and coaxially arranged with the circular plate 31, a circular support track 42 on the bottom plate 11 and coaxially arranged with the circular plate 31, a plurality of roller assemblies 43 on the lower side of the circular plate 31 and matched with the circular support track 42, and a drive motor 44 on the bottom plate 11 and used for driving the ring gear 41, the circular plate 31 is fixed on the top of the ring gear 41, and the circular support track 42 is located outside the ring gear 41; the drive motor 44 is located between the ring gear 41 and the circular support track 42 and is located below the circular plate 31; the plurality of roller assemblies 43 are located on the same circle concentric with the circular plate 31 and are slidingly arranged on the circular support track 42.

[0017] Wherein, the anti-rollover mechanism 6 in the utility model embodiment includes a plurality of supporting legs arranged side by side in front and back directions; the supporting legs are inclinedly arranged in left and right directions, are inclinedly and outwardly arranged from top to bottom, and are length-adjustably arranged on the left side or the right side of the bottom plate 11.

[0018] Further, the bottom plate 11 and the U-turn platform 3 in the utility model embodiment are provided with two bolt limiting mechanisms 7 and two mechanical limiting mechanisms 8; the two bolt limiting mechanisms 7 are respectively arranged on the left side or the right side of one rectangular plate 32 and the other side of the other rectangular plate 32; the bolt limiting mechanism 7 is vertically arranged on the bottom plate 11 and is located directly below the U-turn platform 3; when the bolt limiting mechanism 7 is stretched, the upper end thereof is inserted into the rectangular plate 32 to allow the rectangular plate 32 to face the connecting plate 12 at the corresponding side; one mechanical limiting mechanism 8 is correspondingly arranged on the outer side of each bolt limiting mechanism 7; the mechanical limiting mechanism 8 is fixed on the bottom plate 11, is located on the outer side of the corresponding rectangular plate 32, has a gap between the rectangular plate 32, and blocks and limits the U-turn platform 3.

[0019] In this embodiment of the present invention, the elastic buffer mechanism 25 includes two elastic buffer units arranged side by side. Each elastic buffer unit includes an upper hinge seat 51, a lower hinge seat 52, an upper spring fixing member 53, a lower spring fixing member 54, and a spring 55. The upper hinge seat 51 is located at the lower bottom of the upper traveling part 22, and the upper spring fixing member 53 is hinged to the upper hinge seat 51 via a third pivot in the left-right direction. The lower hinge seat 52 is located at the upper bottom of the lower floating part 21, and the lower spring fixing member 54 is hinged to the lower hinge seat 52 via a fourth pivot in the left-right direction. The upper spring fixing member 53 and the lower spring fixing member 54 are arranged opposite to each other, and the upper spring fixing member 53, the lower spring fixing member 54, and the spring 55 are all parallel to the guide bridge 2. The spring 55 is located between the upper spring fixing member 53 and the lower spring fixing member 54, and its upper and lower ends are respectively sleeved on the spring fixing posts on the upper spring fixing member 53 and the lower spring fixing member 54.

[0020] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a tunnel construction rubber-tired vehicle turning platform, which is easy to move (by being towed using a corresponding structure). It adopts a multi-section structure and can turn on the track. The approach bridge is designed with an elastic buffer mechanism that allows the lower end of the approach bridge to float up and down according to obstacles, and also serves as a collision avoidance function. An anti-tilting mechanism ensures the stability of the fixed structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the tunnel construction rubber-tired vehicle turning platform in this embodiment of the utility model;

[0022] Figure 2 This is a top view of the turning platform for rubber-tired vehicles used in tunnel construction;

[0023] Figure 3 This is a magnified view of a section of the turning platform of a rubber-tired vehicle used in tunnel construction when it rotates 90°.

[0024] Figure 4 This is a structural diagram of the combination of the base, the guide bridge, and the rotary drive mechanism;

[0025] Figure 5 This is a structural diagram of the base plate;

[0026] Figure 6 This is a schematic diagram of the structure of the base plate and the rotary drive mechanism.

[0027] Figure 7 This is a structural diagram of the turning platform;

[0028] Figure 8 This is a schematic diagram of the approach bridge structure.

[0029] In the figure: 1 base, 2 approach bridge, 3 turning platform, 4 turning drive mechanism, 5 walking mechanism, 6 anti-rollover mechanism, 7 bolt limiting mechanism, 8 mechanical limiting mechanism, 9 rubber-tired vehicle, 10 track;

[0030] 11 bottom plate, 12 connecting plate, 13 vertical plate;

[0031] 21 lower floating part, 22 upper walking part, 23 first rotating shaft, 24 second rotating shaft, 25 elastic buffering mechanism;

[0032] 31 circular plate, 32 rectangular plate;

[0033] 41 ring-shaped toothed disc, 42 circular support track, 43 roller assembly, 44 drive motor;

[0034] 51 upper hinged seat, 52 lower hinged seat, 53 upper spring fixing piece, 54 lower spring fixing piece, 55 spring. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be described in further detail below in combination with the drawings.

[0036] Example 1

[0037] Referring to Figures 1-8 , example 1 provides a turning platform for a rubber-tired vehicle used in tunnel construction, which comprises a base 1, an approach bridge 2, a turning platform 3, a turning drive mechanism 4 and two bolt limiting mechanisms 7. The approach bridge 2 is used to realize the transition between the base 1 and the bottom of the tunnel. The turning platform 3 can rotate by 180 degrees and is used to drive the rubber-tired vehicle 9 to turn around. The turning drive mechanism 4 is used to drive the turning platform 3 to rotate. The bolt limiting mechanism 7 is used to limit and fix the turning platform 3.

[0038] The base 1 is arranged along the front-to-back direction and comprises a bottom plate 11 arranged along the front-to-back direction and connecting plates 12 at the front and back ends of the bottom plate 11. The bottom plate 11 is arranged horizontally along the front-to-back direction, and the bottom part is provided with a walking mechanism 5. The turning drive mechanism 4 is arranged between the top of the bottom plate 11 and the turning platform 3 and is located between the two connecting plates 12. The connecting plate 12 is arranged horizontally along the front-to-back direction, and is fixed to the top of the bottom plate 11 through a vertical plate 13 arranged at the corresponding end, is located adjacent to the front or rear of the turning platform 3, is adjacent to the upper end of the upper walking part 22 of the approach bridge 2, and is close to the side (front or rear) of the turning platform 3. The side (front or rear) of the turning platform 3 is a circular arc concave surface (concentric with the circular plate 31) matched with the turning platform 3 (specifically the rectangular plate 32), which is flush with the upper end of the upper walking part 22 and the turning platform 3, and is arranged along the front-to-back direction. The end of the bottom plate 11 and the end of the connecting plate 12 away from the turning platform 3 are each hinged to the upper walking part 22 through a first rotating shaft 23, and the first rotating shaft 23 is vertically arranged and located on the center line of the turning platform.

[0039] The U-turn platform 3 is rotationally arranged on the base 1. The U-turn platform 3 comprises a circular plate 31 and two rectangular plates 32 at the front and back ends of the circular plate 31, etc. The circular plate 31 is rotationally arranged on the bottom plate 11, directly above the middle part of the bottom plate 11. The circular plate 31 is circular and horizontally arranged. The rectangular plates 32 are arranged along the front and back directions. The end (front end or back end) of the rectangular plate 32 away from the circular plate 31 is a circular arc convex surface matched with the circular plate 31 and adjacent to the connecting plate 12 at the corresponding end. Specifically, the front end of the front rectangular plate 32 and the back end of the back rectangular plate 32 are both circular arc convex surfaces. This structure facilitates the operation of the U-turn platform 3 on the left and right sides.

[0040] The rotation driving mechanism 4 is arranged between the base 1 and the U-turn platform 3. The rotation driving mechanism 4 comprises a ring gear 41, a circular support track 42, a plurality of (specifically eight) roller assemblies 43, and a driving motor 44, etc. The ring gear 41 is rotationally arranged in the middle part of the bottom plate 11 and coaxially arranged with the circular plate 31. The circular plate 31 is fixed on the top of the ring gear 41, directly above the circular support track 42. The circular support track 42 is arranged on the bottom plate 11 and coaxially arranged with the circular plate 31, outside the ring gear 41. The plurality of roller assemblies 43 are located on the same circle concentric with the circular plate 31, uniformly distributed, fixed on the lower side of the circular plate 31 (arranged close to the outer edge of the circular plate 31), and slidingly arranged on the circular support track 42. The driving motor 44 is fixed on the bottom plate 11, between the ring gear 41 and the circular support track 42, below the circular plate 31, and used to drive (through a vertically arranged gear meshing with the ring gear 41) the ring gear 41 to rotate.

[0041] The two latch limiting mechanisms 7 are respectively arranged on the left or right side of one rectangular plate 32 and the other side of the other rectangular plate 32. The latch limiting mechanism 7 is vertically arranged on the bottom plate 11, directly below the U-turn platform 3. When the latch limiting mechanism 7 is extended, the upper end thereof is inserted into the rectangular plate 32 (used to fix the U-turn platform 3) to make the rectangular plate 32 directly face the connecting plate 12 at the corresponding side. Specifically, the two latch limiting mechanisms 7 are synchronously driven and symmetrically arranged with the center of the circular plate 31 as the center.

[0042] The bridge 2 is inclined upward from the bottom of the tunnel to the top of the base 1 or the turning platform 3. The front bridge 2 is arranged from front to back and upward, and the rear bridge 2 is arranged from back to front and upward. The bridge 2 comprises a lower floating part 21 and an upper walking part 22 arranged in sequence from bottom to top, and the lower floating part 21 and the upper walking part 22 are both rectangular plates arranged obliquely. The lower end of the lower floating part 21 is arranged horizontally along the front and back direction and abuts against the upper side of the track 10. The upper end of the upper walking part 22 is hinged to the corresponding end (front end or rear end) of the base 1 through a vertical first rotating shaft 23. The lower floating part 21 and the upper walking part 22 are hinged through a second rotating shaft 24 along the left and right direction, and the bottom parts thereof are provided with an elastic buffer mechanism 25 along the direction of the bridge 2. The lower end of the lower floating part 21 abuts against the track 10 (or is located adjacent to the upper side of the track 10) and can be elastically swung up and down about the second rotating shaft 24. The elastic buffer mechanism 25 can make the lower end of the bridge 2 float up and down according to the obstacle, and also can play a role of anti-collision. The bottom part of the base 1 and the upper walking part 22 are both provided with a walking mechanism 5, and the walking mechanism 5 is slidingly arranged on the track 10. The left and right sides of the base 1 are both provided with an anti-tilting mechanism 6.

[0043] The walking mechanism 5 comprises a plurality of groups of pulleys arranged in front and back and side by side, each group of pulleys comprises two groups of pulleys arranged in left and right and side by side, and the two groups of pulleys are arranged on the left and right sides of the turning platform respectively. The pulley groups on the same side of the turning platform are located on the same straight line in the front and back direction and are slidingly arranged on the same track 10.

[0044] The anti-tilting mechanism 6 is arranged on the left side or the right side of the bottom plate 11 and is located on the outer side of the corresponding side of the turning platform 3. The anti-tilting mechanisms 6 on the two sides are arranged symmetrically in left and right direction. The anti-tilting mechanism 6 comprises a plurality of legs arranged in front and back and side by side. The legs are arranged obliquely in left and right direction, and are arranged obliquely outward from top to bottom, and the lower end thereof abuts against the corresponding side of the tunnel and is adjustably arranged on the left side or the right side of the bottom plate 11. Specifically, the leg can be a screw rod, which is fixed to the bottom plate 11 through two nuts arranged in top and bottom and side by side, and the leg can be adjusted up and down by loosening the nuts.

[0045] The elastic buffering mechanism 25 comprises two elastic buffering units arranged side by side, and the two elastic buffering units are symmetrically arranged. The elastic buffering unit comprises an upper hinge seat 51, a lower hinge seat 52, an upper spring fixing part 53, a lower spring fixing part 54 and a spring 55. The upper hinge seat 51 is arranged at the bottom lower end of the upper walking part 22, and the upper spring fixing part 53 is hingedly connected to the upper hinge seat 51 through a third rotating shaft. The lower hinge seat 52 is arranged at the bottom upper end of the lower floating part 21, and the lower spring fixing part 54 is hingedly connected to the lower hinge seat 52 through a fourth rotating shaft. The upper spring fixing part 53 and the lower spring fixing part 54 are oppositely arranged, and the upper spring fixing part 53, the lower spring fixing part 54 and the spring 55 are parallel to the approach bridge 2. The spring 55 is arranged between the upper spring fixing part 53 and the lower spring fixing part 54, and the upper and lower ends of the spring 55 are respectively sleeved on the spring fixing columns (coaxially arranged with the spring 55) of the upper spring fixing part 53 and the lower spring fixing part 54.

[0046] Embodiment 2

[0047] Referring to Figure 2 Embodiment 2 provides a turning platform of a tunnel construction rubber-tired vehicle, which has basically the same structure as that of Embodiment 1, and the difference lies in that the turning platform in the embodiment further comprises two mechanical limiting mechanisms 8. One mechanical limiting mechanism 8 is arranged on the outer side of each bolt limiting mechanism 7, and the mechanical limiting mechanisms 8 are used to avoid excessive rotation of the turning platform 3. Specifically, the two mechanical limiting mechanisms 8 are symmetrically arranged with the center of the circular plate 31 as the center. The mechanical limiting mechanisms 8 are fixed on the bottom plate 11 and are located on the outer side of the corresponding rectangular plate 32, and have a gap (for example, an included angle of 5°) between the mechanical limiting mechanisms 8 and the rectangular plate 32, which block and limit the turning platform 3.

[0048] Embodiment 3

[0049] Embodiment 3 provides a turning platform of a tunnel construction rubber-tired vehicle, which has basically the same structure as that of Embodiment 1, and the difference lies in that the right side of the front rectangular plate 32 in the embodiment is provided with a bolt limiting mechanism 7, and the right side of the bolt limiting mechanism 7 is provided with a mechanical limiting mechanism 8. The left side of the rear rectangular plate 32 is provided with a bolt limiting mechanism 7, and the left side of the bolt limiting mechanism 7 is provided with a mechanical limiting mechanism 8. The bolt limiting mechanism 7 is specifically a hydraulic bolt or an electric bolt (preferably), and the mechanical limiting mechanism 8 is specifically a limiting block.

[0050] Embodiment 4

[0051] Embodiment 4 provides a turning platform of a tunnel construction rubber-tired vehicle, which has basically the same structure as that of Embodiment 1, and the difference lies in that the front part and the rear part of the upper walking part 22 of the front part in the embodiment are each provided with a set of pulley groups, and the front part, the middle part and the rear part of the base 1 are each provided with a set of pulley groups.

[0052] Wherein, in the embodiment, "first", "second", "third" and "fourth" only play a distinguishing role, and have no other special meaning.

[0053] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tunnel construction rubber-tired vehicle turning platform, comprising a base (1) arranged in a front-rear direction, two approach bridges (2) at the front and rear ends of the base (1), a turning platform (3) on the base (1) and capable of rotating 180°, and a rotary drive mechanism (4) for driving the turning platform (3) to rotate, the approach bridges (2) being inclined from the bottom of the tunnel upward to the top of the base (1) or the turning platform (3); characterized in that, The bridge (2) is sequentially provided with a lower floating part (21) and an upper walking part (22) from bottom to top, the upper end of the upper walking part (22) is hinged to the corresponding end of the base (1) through a vertical first rotating shaft (23), the lower floating part (21) and the upper walking part (22) are hinged through a left-right second rotating shaft (24), and the bottom parts of the lower floating part (21) and the upper walking part (22) are provided with an elastic buffering mechanism (25) in the direction of the bridge (2); the lower end of the lower floating part (21) abuts against the track (10) and can elastically swing up and down about the second rotating shaft (24); the base (1) and the bottom part of the upper walking part (22) are each provided with a walking mechanism (5), the walking mechanism (5) is slidingly arranged on the track (10), and the left and right sides of the base (1) and the tunnel are each provided with an anti-tilting mechanism (6).

2. The tunneling gum-tyre vehicle turn platform according to claim 1, characterized in that, The walking mechanism (5) comprises multiple groups of pulley blocks arranged side by side in front and back directions, each group of pulley blocks comprises two pulley blocks arranged side by side in left and right directions, and the two pulley blocks are arranged on the left and right sides of the turning platform respectively, and the pulley blocks on the same side of the turning platform are located on the same straight line in the front and back directions and are slidingly arranged on the same track (10).

3. The tunneling gumbo trolley turn platform of claim 2, wherein, The front part and the rear part of the upper walking part (22) are each provided with a group of pulley blocks, and the front part, the middle part and the rear part of the base (1) are each provided with a group of pulley blocks.

4. The tunneling gumbo trolley turn platform of claim 1, wherein, The lower floating part (21) and the upper walking part (22) are both rectangular plates arranged obliquely; the lower end of the lower floating part (21) is arranged horizontally in the front and back directions and abuts against the upper side of the track (10).

5. The tunneling gumbo trolley turn platform of claim 1, wherein, The base (1) comprises a bottom plate (11) arranged in the front and back directions and connecting plates (12) at the front and back ends of the bottom plate (11), the bottom part of the bottom plate (11) is provided with a walking mechanism (5), the rotary driving mechanism (4) is arranged between the top part of the bottom plate (11) and the turning platform (3) and is located between the two connecting plates (12); the connecting plate (12) is fixed to the corresponding end of the top part of the bottom plate (11) through a vertical standing plate (13), is located adjacent to the front or the rear of the turning platform (3), is adjacent to the upper end of the upper walking part (22), is provided with a circular arc concave surface matched with the turning platform (3) on the side close to the turning platform (3), is flush with the upper end of the upper walking part (22) and the turning platform (3) and is arranged in the front and back directions; the end part of the bottom plate (11) and the end of the connecting plate (12) away from the turning platform (3) are each hinged to the upper walking part (22) through a first rotating shaft (23), the first rotating shaft (23) is located on the center line of the turning platform; the anti-tilting mechanism (6) is arranged on the left side or the right side of the bottom plate (11) and is located on the outer side of the corresponding side of the turning platform (3).

6. The tunneling gum-tyre vehicle turn platform according to claim 5, characterized in that, The turning platform (3) comprises a circular plate (31) and two rectangular plates (32) at the front and back ends of the circular plate (31), the circular plate (31) is rotationally arranged on the bottom plate (11) and is located directly above the middle part of the bottom plate (11); the rectangular plate (32) is arranged in the front and back directions, and the end away from the circular plate (31) is a circular arc convex surface matched with the circular plate (31) and is adjacent to the connecting plate (12) at the corresponding end.

7. The tunneling gumbo trolley turn platform of claim 6, wherein, The rotary driving mechanism (4) comprises a ring gear (41) rotatably arranged on the bottom plate (11) and coaxially arranged with the circular plate (31), a circular support track (42) arranged on the bottom plate (11) and coaxially arranged with the circular plate (31), a plurality of roller assemblies (43) arranged on the lower side of the circular plate (31) and matched with the circular support track (42), and a driving motor (44) arranged on the bottom plate (11) and used for driving the ring gear (41), the circular plate (31) is fixed on the top of the ring gear (41), and the circular support track (42) is located outside the ring gear (41); the driving motor (44) is located between the ring gear (41) and the circular support track (42) and below the circular plate (31); the plurality of roller assemblies (43) are located on the same circle concentric with the circular plate (31) and are slidingly arranged on the circular support track (42).

8. The tunneling gum-tyre vehicle turn platform according to claim 5, characterized in that, The anti-tilting mechanism (6) comprises a plurality of supporting legs arranged side by side in front and back; the supporting legs are arranged obliquely in left and right directions, obliquely outward from top to bottom, and are length-adjustably arranged on the left side or the right side of the bottom plate (11).

9. The tunneling gum-tyre vehicle turn platform according to claim 5, characterized in that, Two bolt limiting mechanisms (7) and two mechanical limiting mechanisms (8) are arranged between the bottom plate (11) and the turning platform (3); the two bolt limiting mechanisms (7) are respectively arranged on the left side or the right side of one rectangular plate (32) and the other side of the other rectangular plate (32); the bolt limiting mechanism (7) is vertically arranged on the bottom plate (11) and located directly below the turning platform (3); when the bolt limiting mechanism (7) is stretched, the upper end thereof is inserted into the rectangular plate (32) to allow the rectangular plate (32) to face the connecting plate (12) on the corresponding side; one mechanical limiting mechanism (8) is arranged on the outer side of each bolt limiting mechanism (7); the mechanical limiting mechanism (8) is fixed on the bottom plate (11) and located on the outer side of the corresponding rectangular plate (32), and has a gap with the rectangular plate (32) to block and limit the turning platform (3).

10. The tunneling gumbo trolley turn platform of claim 1, wherein, The elastic buffering mechanism (25) comprises two elastic buffering units arranged side by side in left and right directions; the elastic buffering unit comprises an upper hinge seat (51), a lower hinge seat (52), an upper spring fixing piece (53), a lower spring fixing piece (54), and a spring (55); the upper hinge seat (51) is arranged at the bottom lower end of the upper walking part (22), the upper spring fixing piece (53) is hingedly connected to the upper hinge seat (51) through a third rotating shaft in left and right directions; the lower hinge seat (52) is arranged at the bottom upper end of the lower floating part (21), the lower spring fixing piece (54) is hingedly connected to the lower hinge seat (52) through a fourth rotating shaft in left and right directions; the upper spring fixing piece (53) and the lower spring fixing piece (54) are oppositely arranged, the upper spring fixing piece (53), the lower spring fixing piece (54), and the spring (55) are parallel to the approach bridge (2), and the spring (55) is arranged between the upper spring fixing piece (53) and the lower spring fixing piece (54) and has its upper and lower ends respectively sleeved on the spring fixing columns of the upper spring fixing piece (53) and the lower spring fixing piece (54).

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