Horizontal transportation truss vehicle for small-section tunnel

By designing an adjustable electro-hydraulic rod and a threaded support mechanism, the problem of the inconvenience of using conventional gantry cranes in small-section tunnels was solved, realizing the flexible adjustment and applicability of gantry cranes in small-section tunnels.

CN223754130UActive Publication Date: 2026-01-02CHINA RAILWAY FIFTH GROUP SECOND ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202520177176.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-03
Publication Date
2026-01-02
Estimated Expiration
2035-02-03

AI Technical Summary

Technical Problem

Conventional gantry cranes are inconvenient to use in small-section tunnels and cannot adapt to narrow construction environments.

Method used

A horizontal transport gantry for small-section tunnels was designed. It uses an electric hydraulic rod to adjust the lifting column and the transverse retraction cylinder. Combined with the threaded engagement of the screw and the transverse column, the height, width and length of the gantry can be adjusted. The distance of the support mechanism can be adjusted by the threaded engagement of the bidirectional screw and the lifting block. It is equipped with hoisting and drive mechanisms to adapt to tunnels of different sizes.

Benefits of technology

It enables flexible adjustment of the gantry crane in small-section tunnels, adapting to tunnels of different sizes and improving the applicability and operational flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a small-section tunnel horizontal transportation joist barrow, which belongs to the technical field of transportation joist barrows and comprises four bases, each two bases are respectively provided with a supporting mechanism, and two distance adjusting mechanisms are arranged between the two supporting mechanisms. According to the utility model, the electric hydraulic rod is used for driving the lifting column and the transverse movement contraction cylinders to move up and down, so that the height of the truss vehicle is adjusted, and the distance between the two transverse movement contraction cylinders is adjusted through the screw-thread fit between the screw rod and the transverse column, so that the width of the truss vehicle is adjusted; and in addition, two pulling frames rotate around a rotating rod through threaded fit between a bidirectional lead screw and a lifting block, so that the distance between the two supporting mechanisms is adjusted, the length of the joist barrow is adjusted, it is guaranteed that the joist barrow can be applied to small-section tunnels of different sizes, and practicability is good.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of transport truss car, more particularly to a small section tunnel horizontal transport truss car. BACKGROUND

[0002] The size of the tunnel section can be classified according to the needs of the project. Generally speaking, the size of the tunnel section is divided into small section tunnel, medium section tunnel and large section tunnel. Among them, the tunnel face of the small section tunnel is relatively small, which means that the tunnel face of the small section tunnel is more narrow and limited. Smaller equipment and higher operating skills are required during construction to adapt to the narrow tunnel face. The truss car is a lifting device mainly used for lifting and transporting heavy objects. It is usually composed of metal structures and has high carrying capacity and large working range. The conventional truss car has fixed size and is not convenient to use in small section tunnels. Therefore, we propose a small section tunnel horizontal transport truss car. SUMMARY

[0003] In view of the problems mentioned in the above background technology, the purpose of the utility model is to provide a small section tunnel horizontal transport truss car.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A small section tunnel horizontal transport truss car, comprising four bases, each two of the bases are provided with a support mechanism, two distance adjusting mechanisms are arranged between the two support mechanisms, a hoisting mechanism is arranged on each of the two support mechanisms, two drive mechanisms are arranged on each of the four bases, the support mechanism comprises a vertical pipe fixedly connected to the top surface of the two bases, an electric hydraulic rod is fixedly installed on the inner side of the two vertical pipes and located on the top surface of the base, an output end of the electric hydraulic rod is fixedly connected with a lifting column, the top end of the lifting column extends to the top of the vertical pipe and is fixedly connected with a horizontal moving contraction cylinder, a horizontal column is sleeved between the two horizontal moving contraction cylinders, a first motor is fixedly installed at the end of the horizontal moving contraction cylinder, the output shaft of the first motor extends to the inner cavity of the horizontal moving contraction cylinder and is fixedly connected with a screw rod, and the end of the screw rod is threadedly sleeved to the inside of the horizontal column.

[0006] As a preferred scheme of the utility model, the distance adjusting mechanism includes lifting boxes fixedly connected at the two riser sides respectively, the inner cavities of the two lifting boxes are rotationally connected with bidirectional screws respectively, the outer sides of the two ends of the bidirectional screws are threadedly sleeved with lifting blocks respectively, pulling frames are rotationally connected between every two lifting blocks respectively, the middle parts of the two pulling frames are rotationally connected with rotating rods, the top parts of the two lifting boxes are fixedly installed with second motors respectively, the output shafts of the two second motors are connected with the top ends of the two bidirectional screws respectively, and the side surface of the lifting block is attached to the inner wall of the lifting box.

[0007] As a preferred scheme of the utility model, the lifting mechanism includes winding frames fixedly connected at the bottom faces of the two transverse contraction cylinders, the inner sides of the two winding frames are rotationally connected with winding drums respectively, the outer side of one winding drum is wound with a steel wire rope, the end of the steel wire rope is connected with the other winding drum, the outer sides of the two winding frames are fixedly installed with fourth motors respectively, and the output shafts of the two fourth motors are connected with one end of the rotating shafts of the two winding drums respectively.

[0008] As a preferred scheme of the utility model, the driving mechanism includes an electromagnetic brake motor fixedly installed at the top face of the base, the output shaft of the electromagnetic brake motor extends to the bottom of the base and is fixedly connected with a moving frame, the inner side of the moving frame is rotationally connected with a moving wheel, the outer side of the moving frame is fixedly installed with a third motor, and the output shaft of the third motor is connected with one end of the rotating shaft of the moving wheel.

[0009] As a preferred scheme of the utility model, the outer side of one riser is fixedly installed with a control panel.

[0010] As a preferred scheme of the utility model, the inner wall of the riser is attached to the side surface of the lifting column.

[0011] As a preferred scheme of the utility model, the side surface of the transverse column is attached to the inner wall of the transverse contraction cylinder.

[0012] The utility model discloses a kind of advantages, which is as follows:

[0013] In the utility model, the lifting column and the transverse contraction cylinder are moved up and down by electric hydraulic rod, the height of the truss car is adjusted, the distance between the two transverse contraction cylinders is adjusted by the screw thread cooperation between screw rod and transverse column, so as to adjust the width of the truss car; and the distance between the two supporting mechanisms is adjusted by the screw thread cooperation between bidirectional screw rod and lifting block, so as to adjust the length of the truss car, so that the truss car can be used in different size small-section tunnel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1It is the whole structure schematic view of the utility model;

[0015] Figure 2 It is the whole structure explosion view of the utility model;

[0016] Figure 3 It is the cross section schematic view of distance adjusting mechanism of the utility model;

[0017] Figure 4 It is the cross section schematic view of riser of the utility model.

[0018] Mark explanation in drawing: 1, base; 2, support mechanism; 3, distance adjusting mechanism; 4, drive mechanism; 5, hoisting mechanism; 6, riser; 7, electric hydraulic rod; 8, lifting column; 9, horizontal moving contraction cylinder; 10, horizontal column; 11, first motor; 12, screw rod; 13, lifting box; 14, bidirectional screw rod; 15, lifting block; 16, pulling frame; 17, rotating rod; 18, second motor; 19, winding frame; 20, winding cylinder; 21, steel wire rope; 22, holding brake motor; 23, moving frame; 24, moving wheel; 25, third motor; 26, control panel; 27, fourth motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve set / interface", "connection" and so on, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0022] Embodiment:

[0023] Please refer to Figures 1-4 A small section tunnel horizontal transport truss car, including four bases 1, every two bases 1 are provided with support mechanism 2 respectively, two support mechanisms 2 are provided with two distance adjusting mechanisms 3 between, two support mechanisms 2 are provided with hoisting mechanism 5 respectively, four bases 1 are provided with two drive mechanisms 4 respectively, support mechanism 2 includes fixedly connected in the vertical pipe 6 of two bases 1 top surface, the inner side of two vertical pipes 6 and the top surface of base 1 are fixedly installed electric hydraulic rod 7, the output end of two electric hydraulic rods 7 is fixedly connected with lifting column 8, the top end of two lifting columns 8 extends to the top of vertical pipe 6 and is fixedly connected with horizontal movement contraction cylinder 9, two horizontal movement contraction cylinders 9 are sleeved with horizontal column 10 between, the end of two horizontal movement contraction cylinders 9 is fixedly installed first motor 11 respectively, the output shaft of two first motors 11 extends to the inner chamber of two horizontal movement contraction cylinders 9 and is fixedly connected with screw rod 12, the end of two screw rods 12 is respectively screwed to the inside of horizontal column 10.

[0024] Specifically, please refer to Figures 1 to 3 Distance adjusting mechanism 3 includes lifting box 13 fixedly connected in the side of two vertical pipes 6 respectively, two-way screw rod 14 is rotatably connected in the inner chamber of two lifting boxes 13 respectively, the outer side of both ends of two-way screw rod 14 is respectively screwed with lifting block 15, every two lifting blocks 15 are rotatably connected with pull frame 16 between, the middle part of two pull frames 16 is rotatably connected with rotating rod 17, the top of two lifting boxes 13 is fixedly installed with second motor 18 respectively, the output shaft of two second motors 18 is connected with the top of two-way screw rod 14 respectively, the side of lifting block 15 and the inner wall of lifting box 13 are fitted.

[0025] In the embodiment, the inner wall of lifting box 13 is used to limit lifting block 15, so that lifting block 15 can only move along the axial direction of two-way screw rod 14.

[0026] Specifically, please refer to Figure 1 And Figure 4The hoisting mechanism 5 comprises two winding frames 19 fixedly connected to the bottom surfaces of the two horizontal movement telescopic cylinders 9, the inner sides of the two winding frames 19 are rotationally connected with winding drums 20 respectively, the outer side of one winding drum 20 is wound with a steel wire rope 21, the end of the steel wire rope 21 is connected with the other winding drum 20, the outer sides of the two winding frames 19 are fixedly installed with fourth motors 27 respectively, the output shafts of the two fourth motors 27 are connected with one ends of the rotation shafts of the two winding drums 20 respectively.

[0027] In the embodiment, the hoisting mechanism 5 is utilized to hoist the materials.

[0028] Specifically, refer to Figure 1 and Figure 2 The driving mechanism 4 comprises a band brake motor 22 fixedly installed on the top surface of the base 1, the output shaft of the band brake motor 22 extends to the bottom of the base 1 and is fixedly connected with a moving frame 23, the inner side of the moving frame 23 is rotationally connected with a moving wheel 24, the outer side of the moving frame 23 is fixedly installed with a third motor 25, the output shaft of the third motor 25 is connected with one end of the rotation shaft of the moving wheel 24.

[0029] In the embodiment, the moving wheel 24 is utilized to move the device, the third motor 25 is utilized to drive the moving wheel 24, so that the device is moved by the moving wheel 24, and the band brake motor 22 is utilized to drive the moving wheel 24 to rotate horizontally, so that the direction of the device is changed.

[0030] Specifically, refer to Figure 1 The outer side of one vertical pipe 6 is fixedly installed with a control panel 26.

[0031] In the embodiment, the control panel 26 is utilized to control the device.

[0032] Specifically, refer to Figure 4 The inner wall of the vertical pipe 6 is attached to the side surface of the lifting column 8.

[0033] In the embodiment, the inner wall of the vertical pipe 6 is utilized to limit the lifting column 8, so that the stability between the vertical pipe 6 and the lifting column 8 is ensured.

[0034] Specifically, refer to Figure 4 The side surface of the horizontal column 10 is attached to the inner wall of the horizontal movement telescopic cylinder 9.

[0035] In the embodiment, the inner wall of the horizontal movement telescopic cylinder 9 is utilized to limit the horizontal column 10, so that the stability of the horizontal column 10 in the horizontal movement telescopic cylinder 9 is ensured.

[0036] Working principle: in use, first, start the electric hydraulic rod 7 to drive the lifting column 8 and the horizontal moving cylinder 9 to move up and down, adjust the height of the truss vehicle, in addition, start the brake motor 22 to drive the moving frame 23 and the moving wheel 24 to rotate, so that the moving wheels 24 under the two bases 1 are arranged in the same direction, so as to start the first motor 11 to drive the screw rod 12 to rotate, through the screw thread cooperation between the screw rod 12 and the horizontal column 10, the horizontal column 10 is telescopic in the two horizontal moving cylinders 9, so as to adjust the distance between the two horizontal moving cylinders 9, and then adjust the width of the truss vehicle, then start the brake motor 22 again to rotate, so that the moving wheels 24 under the two bases 1 are arranged in parallel, at this time, start the four second motors 18, through the second motor 18 to drive the bidirectional screw rod 14 to rotate, through the screw thread cooperation between the bidirectional screw rod 14 and the lifting block 15 to drive the lifting block 15 to move, use the lifting block 15 inside the two opposite lifting boxes 13 to drive the pulling frame 16 to rotate, so as to adjust the distance between the two support mechanisms 2, and then adjust the length of the truss vehicle, then start the fourth motor 27 to drive the winding drum 20 to rotate, so that the steel wire rope 21 on the winding drum 20 is released, so as to place the material from the bottom end of the steel wire rope 21, at this time, start the fourth motor 27 to drive the winding drum 20 to reverse, use the winding drum 20 to wind the steel wire rope 21, so as to lift the material, finally, start the third motor 25 to drive the moving wheel 24 to rotate, use the moving wheel 24 to drive the device to move in the tunnel.

[0037] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A small cross-section tunnel horizontal transportation gantry, characterized in that: The utility model provides a kind of distance-adjusting mechanism, which comprises four bases (1), two distance-adjusting mechanisms (3) are arranged between two support mechanisms (2) respectively arranged on every two bases (1), two lifting mechanisms (5) are arranged on two support mechanisms (2), two driving mechanisms (4) are respectively arranged on four bases (1), the support mechanism (2) includes fixedly connected in the vertical pipe (6) of the top surface of two bases (1), the inner side of two vertical pipes (6) and the top surface of base (1) are fixedly installed electric hydraulic rod (7), the output end of two electric hydraulic rods (7) is fixedly connected with lifting column (8), the top end of two lifting columns (8) extends to the top of vertical pipe (6) and is fixedly connected with horizontal moving contraction cylinder (9), two horizontal moving contraction cylinders (9) are sleeved with horizontal column (10), the end of two horizontal moving contraction cylinders (9) is fixedly installed first motor (11) respectively, the output shaft of two first motors (11) extends to the inner cavity of two horizontal moving contraction cylinders (9) and is fixedly connected with screw rod (12), the end of two screw rods (12) is respectively screwed to the inside of horizontal column (10).

2. A small cross-section tunnel horizontal transportation trammel according to claim 1, characterized in that: The distance-adjusting mechanism (3) includes lifting box (13) fixedly connected on the side of two vertical pipes (6), two-way screw rod (14) is rotatably connected in the inner cavity of two lifting boxes (13), the outer side of both ends of two-way screw rod (14) is screwed with lifting block (15), pulling frame (16) is rotatably connected between every two lifting blocks (15), rotating rod (17) is rotatably connected in the middle of two pulling frames (16), second motor (18) is fixedly installed on the top of two lifting boxes (13), the output shaft of two second motors (18) is connected with the top end of two two-way screw rods (14), the side of lifting block (15) is attached to the inner wall of lifting box (13).

3. A small cross-section tunnel horizontal transportation trammel according to claim 2, characterized in that: The lifting mechanism (5) includes winding frame (19) fixedly connected on the bottom surface of two horizontal moving contraction cylinders (9), winding drum (20) is rotatably connected on the inner side of two winding frames (19), steel wire rope (21) is wound on the outer side of one winding drum (20), the end of steel wire rope (21) is connected with the other winding drum (20), fourth motor (27) is fixedly installed on the outer side of two winding frames (19), the output shaft of two fourth motors (27) is connected with one end of the rotating shaft of two winding drums (20).

4. A small cross-section tunnel horizontal transportation trammel according to claim 1, characterized in that: The driving mechanism (4) includes clutch motor (22) fixedly installed on the top surface of base (1), the output shaft of clutch motor (22) extends to the bottom of base (1) and is fixedly connected with moving frame (23), moving wheel (24) is rotatably connected on the inner side of moving frame (23), third motor (25) is fixedly installed on the outer side of moving frame (23), the output shaft of third motor (25) is connected with one end of the rotating shaft of moving wheel (24).

5. A small cross-section tunnel horizontal transportation gantry vehicle according to claim 1, characterized in that: The outer side of one vertical pipe (6) is fixedly installed with control panel (26).

6. A small cross-section tunnel horizontal transportation gantry vehicle according to claim 1, characterized in that: The inner wall of the riser (6) and the lateral surface of the lifting column (8) are in contact.

7. A small cross-section tunnel horizontal transportation gantry vehicle according to claim 1, characterized in that: The lateral surface of the transverse column (10) and the inner wall of the transverse shrinkable cylinder (9) are in contact.