Variable cross-section tunnel lining trolley

Abstract

The utility model provides a variable cross-section tunnel lining trolley which comprises a trolley body, the trolley body comprises two U-shaped supporting frames, first longitudinal beams are symmetrically and fixedly arranged between the top ends of the two U-shaped supporting frames, and transverse supporting rods are fixedly arranged in the top ends of the two U-shaped supporting frames. The lining trolley is formed by splicing and fixing the two U-shaped supporting frames and the first longitudinal beam, and compared with the prior art, the number of used parts is small, so that the lining trolley is easy to transport and splice and high in construction efficiency, and material waste cannot be caused; the arranged transverse supporting rods can increase supporting of the U-shaped supporting frame, and the second longitudinal beams are arranged between the transverse supporting rods, so that the vehicle body can be reinforced, and the stability of the vehicle body is improved; by arranging the adjusting supporting mechanism and the first supporting mechanism, supporting of the variable cross-section formwork and the movable formwork can be increased, so that the stability of the variable cross-section formwork and the movable formwork is improved, and follow-up concrete pouring is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lining trolleys, in particular to a variable-section tunnel lining trolley. Background Art

[0002] Lining trolley is mainly used for pouring concrete for tunnels, diversion tunnels and secondary lining. The existing lining trolley is composed of formwork system, support system, hydraulic system, travel system, etc., including formwork, gantry, travel mechanism, longitudinal support beams of top plate and side plate, vertical lifting hydraulic cylinder, lateral hydraulic cylinder, lateral support screw and other components. The formwork system of lining trolley is mainly composed of top formwork and side formwork. The formwork is connected as a whole with bolts. The side formworks on both sides are curved formworks. The top formwork is divided into two pieces. The joint is located at the top of the arch. The top formwork and the side formwork are pinned. The lining trolley has a total of 10 longitudinal beams, including two gantry main beams and 8 formwork support beams. The heaviest one is the gantry main beam, which weighs about 2 tons. The lining trolley travels along the rails. In the prior art, the lining trolley is heavy and has many parts, which makes it difficult to transport and assemble, and causes waste of materials, resulting in low practicality. For example, the Chinese utility model patent with announcement number CN208605204U proposes a block-assembled variable-section lining trolley, which has a relatively complex structure and is not easy to transport and assemble.

[0003] To this end, the utility model provides a variable-section tunnel lining trolley. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a variable-section tunnel lining trolley to solve the problems raised in the above-mentioned background technology. The utility model is composed of two U-shaped support frames and a first longitudinal beam spliced ​​and fixed. Comparatively speaking, fewer components are used, making the transportation and assembly of the lining trolley simple, the construction efficiency is high, and no waste of materials is caused.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a variable-section tunnel lining trolley comprises a car body, the car body comprises two U-shaped support frames, a first longitudinal beam is symmetrically fixedly arranged between the top ends of the two U-shaped support frames, a transverse support rod is fixedly arranged inside the top ends of the two U-shaped support frames, a variable-section template is installed on the top of the two U-shaped support frames through a first support mechanism, a movable template is provided at the bottom of the two ends of the variable-section template through a hinge, an adjustment support mechanism is provided between the two ends of the two U-shaped support frames and the movable template, the adjustment support mechanism comprises a servo motor, a screw, a slide plate and a connecting rod, one end of the connecting rod is movably mounted on the inner wall of the two ends of the movable template through a pivot, a sliding groove is opened inside the two ends of the U-shaped support frame, the screw is limited and rotatably installed inside the sliding groove, and a second support mechanism is provided between the transverse support rod and the variable-section template and the movable template.

[0006] Furthermore, the first supporting mechanism includes a first vertical rod and two second vertical rods, the two second vertical rods are arranged on both sides of the first vertical rod, and an X-shaped supporting frame is fixedly arranged between the second vertical rod and the first vertical rod.

[0007] Furthermore, the first supporting mechanism is fixedly arranged on the top of the U-shaped supporting frame and the first longitudinal beam respectively, and the top of the first vertical rod and the second vertical rod are fixedly connected to the bottom of the variable-section template.

[0008] Furthermore, the second supporting mechanism includes a first hydraulic rod, which is symmetrically fixed inside the two ends of the transverse supporting rod, a moving rod is fixedly installed at one end of the output rod of the first hydraulic rod, and a supporting plate is fixedly provided at the outer end of the moving rod.

[0009] Furthermore, the support plate is in an arc shape, and is disposed on the inner side of the connection position between the variable-section template and the movable template and contacts the inner wall thereof, and through grooves are provided inside the variable-section template and the movable template.

[0010] Furthermore, a second longitudinal beam is fixedly arranged between the two ends of the transverse support rods on the front and rear sides, and the second longitudinal beam is arranged on both sides of the top end of the U-shaped support frame.

[0011] Furthermore, the slide plate is limitedly slidably installed inside the slide slot, the slide plate is screwed inside the slide slot through a screw hole, and one end of the slide plate is movably connected to the other end of the connecting rod through a pivot.

[0012] Furthermore, sliding rods are installed at the bottom limit sliding at both ends of the U-shaped support frame, a second hydraulic rod is fixedly arranged inside the top end of the sliding rod, an output rod of the second hydraulic rod is fixedly connected to the inside of the U-shaped support frame, a movable base is fixedly arranged at the bottom end of the sliding rod, and movable wheels are rotatably arranged inside the movable base.

[0013] The beneficial effects of the utility model: the utility model is a variable-section tunnel lining trolley which is spliced ​​and fixed by two U-shaped support frames and a first longitudinal beam. Comparatively speaking, fewer parts are used, so that the lining trolley is simple to transport and assemble, the construction efficiency is high, and no waste of materials is caused; the arranged transverse support rods can increase the support for the U-shaped support frame, and the second longitudinal beam is arranged between the transverse support rods, so that the vehicle body can be reinforced and the stability of the vehicle body can be improved; the arranged adjusting support mechanism and the first supporting mechanism can increase the support for the variable-section formwork and the movable formwork, thereby improving the stability of the variable-section formwork and the movable formwork, and facilitating the subsequent pouring of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a variable-section tunnel lining trolley of the utility model;

[0015] Figure 2 It is a front cross-sectional view of a variable-section tunnel lining trolley of the utility model;

[0016] Figure 3 This is a structural diagram of the body of a variable-section tunnel lining trolley of the utility model;

[0017] In the figure: 1. vehicle body; 2. variable-section template; 3. movable template; 4. support plate; 5. through groove; 6. slide rod; 7. mobile base; 8. mobile wheel; 9. U-shaped support frame; 10. transverse support rod; 11. first hydraulic rod; 12. mobile rod; 13. first vertical rod; 14. second vertical rod; 15. X-shaped support frame; 16. servo motor; 17. slide groove; 18. screw rod; 19. slide plate; 20. connecting rod; 21. second hydraulic rod; 22. first longitudinal beam; 23. second longitudinal beam. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figures 1 to 3The utility model provides a technical solution: a variable-section tunnel lining trolley, comprising a car body 1, the car body 1 comprising two U-shaped support frames 9, a first longitudinal beam 22 is symmetrically fixedly arranged between the tops of the two U-shaped support frames 9, a transverse support rod 10 is fixedly arranged inside the tops of the two U-shaped support frames 9, a variable-section template 2 is installed on the top of the two U-shaped support frames 9 through a first support mechanism, a movable template 3 is arranged at the bottom of both ends of the variable-section template 2 through a hinge, an adjustment support mechanism is arranged between the two ends of the two U-shaped support frames 9 and the movable template 3, the adjustment support mechanism comprises a servo motor 16, a screw rod 18, a slide plate 19 and a connecting rod 20, the connecting rod One end of the rod 20 is pivotally mounted on the inner walls of the two ends of the movable template 3, and a slide groove 17 is opened inside the two ends of the U-shaped support frame 9, and the screw 18 is limited and rotated inside the slide groove 17. A second supporting mechanism is arranged between the transverse support rod 10 and the variable-section template 2 and the movable template 3. The two U-shaped support frames 9 are spliced ​​and installed respectively through the first longitudinal beam 22. The components of the lining trolley are small, and transportation and assembly are simple and convenient. The movable template 3 can be adjusted by the arranged servo motor 16, screw 18, slide plate 19 and connecting rod 20, which is convenient for subsequent demoulding and separation, and can also increase support for the movable template 3 and improve the stability of the movable template 3.

[0020] In this embodiment, the first supporting mechanism includes a first vertical rod 13 and two second vertical rods 14, the two second vertical rods 14 are arranged on both sides of the first vertical rod 13, and an X-shaped support frame 15 is fixedly arranged between the second vertical rod 14 and the first vertical rod 13. The first supporting mechanism is respectively fixedly arranged on the top of the U-shaped support frame 9 and the first longitudinal beam 22, and the tops of the first vertical rod 13 and the second vertical rod 14 are fixedly connected to the bottom of the variable-section formwork 2. The arranged X-shaped support frame 15 can support the first vertical rod 13 and the second vertical rod 14, thereby improving the stability between the first vertical rod 13 and the second vertical rod 14. The variable-section formwork 2 can be supported by the first vertical rod 13 and the second vertical rod 14, thereby conveniently improving the stability of the variable-section formwork 2 during pouring.

[0021] In this embodiment, the second supporting mechanism includes a first hydraulic rod 11, which is symmetrically fixedly installed inside the two ends of the transverse support rod 10, and a moving rod 12 is fixedly installed on one end of the output rod of the first hydraulic rod 11. A support plate 4 is fixedly provided on the outer end of the moving rod 12, and the support plate 4 is in an arc shape. The support plate 4 is arranged on the inner side of the connection position of the variable-section template 2 and the movable template 3 and contacts its inner wall. A through groove 5 is opened inside the variable-section template 2 and the movable template 3. A second longitudinal beam 23 is fixedly provided between the two ends of the transverse support rod 10 on the front and rear sides, and the second longitudinal beam 23 is arranged on both sides of the top of the U-shaped support frame 9. The first hydraulic rod 11 drives the moving rod 12 to move to both sides of the transverse support rod 10, and at the same time drives the support plate 4 to contact the inner walls of the variable-section template 2 and the movable template 3, thereby increasing the support for the variable-section template 2 and the movable template 3, and improving the stability of the lining trolley. The transverse support rod 10 can also increase the support for the U-shaped support frame 9.

[0022] In this embodiment, the slide plate 19 is installed in a limited sliding manner inside the slide groove 17. The slide plate 19 is screwed inside the slide groove 17 through a screw hole. One end of the slide plate 19 is movably connected to the other end of the connecting rod 20 through a pivot. The slide groove 17 can limit the slide plate 19 so that the slide plate 19 can be lifted and slid inside the slide groove 17, so that Fang Boyi can squeeze or pull the connecting rod 20 to facilitate the subsequent support or pulling adjustment of the movable template 3.

[0023] In this embodiment, sliding rods 6 are installed at the bottom of the two ends of the U-shaped support frame 9 for limiting sliding. A second hydraulic rod 21 is fixedly arranged inside the top of the sliding rod 6. The output rod of the second hydraulic rod 21 is fixedly connected to the inside of the U-shaped support frame 9. A movable base 7 is fixedly arranged at the bottom end of the sliding rod 6. A movable wheel 8 is rotatably arranged inside the movable base 7. The U-shaped support frame 9 can be raised and lowered by the second hydraulic rod 21, which is convenient for demolding the variable-section formwork 2. The movable base 7 and movable wheels 8 can travel on the steel track, thereby facilitating the movement of the lining trolley.

[0024] When using the variable-section tunnel lining trolley, the two U-shaped support frames 9 are hoisted respectively, and a first longitudinal beam 22 is welded between the top ends of the two U-shaped support frames 9. The first longitudinal beam 22 splices the two U-shaped support frames 9 together, and a second longitudinal beam 23 is welded between the transverse support rods 10 on the front and rear sides. At this time, the second longitudinal beam 23 is arranged on both sides of the top end of the U-shaped support frame 9. The U-shaped support frame 9 is reinforced by the transverse support rods 10 and the second longitudinal beam 23, so that the stability of the vehicle body 1 can be improved. The support plate 4 is installed between one end of the connecting rods 20 on both sides. The vehicle body 1 is spliced ​​by two U-shaped support frames 9 through the first longitudinal beam 22. In comparison, fewer parts are used, making the lining trolley simple to transport and assemble, with high construction efficiency and no waste of materials. When supporting the formwork, the second hydraulic rod 21 is started, and the second hydraulic rod 2 1 pushes the U-shaped support frame 9 to move upward, and the U-shaped support frame 9 drives the variable-section template 2 to rise through the first support mechanism such as the first vertical rod 13 and the second vertical rod 14, and starts the servo motor 16. The servo motor 16 drives the screw rod 18 to rotate inside the slide groove 17, and drives the slide plate 19 to move downward inside the slide groove 17 through the screw connection of the screw rod 18. The slide plate 19 squeezes the connecting rod 20 through the pivot, and the connecting rod 20 squeezes the movable template 3 to rotate at the bottom of the variable-section template 2. The moving rod 12 and the support plate 4 are driven by the first hydraulic rod 11 to support the support plate 4 at the connection between the variable-section template 2 and the movable template 3. The support for the variable-section template 2 and the movable template 3 can be increased by the provided adjustment support mechanism and the first support mechanism, thereby improving the stability of the variable-section template 2 and the movable template 3, and facilitating the subsequent pouring of concrete.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A variable cross-section tunnel lining trolley, comprising a trolley body (1), characterized in that: The vehicle body (1) comprises two U-shaped support frames (9), a first longitudinal beam (22) is symmetrically fixedly arranged between the top ends of the two U-shaped support frames (9), a transverse support rod (10) is fixedly arranged inside the top ends of the two U-shaped support frames (9), a variable cross-section template (2) is installed on the top of the two U-shaped support frames (9) through a first support mechanism, and movable templates (3) are arranged at the bottom of both ends of the variable cross-section template (2) through hinges, and a hinge is formed between the two ends of the two U-shaped support frames (9) and the movable template (3). An adjusting support mechanism is provided, the adjusting support mechanism comprising a servo motor (16), a screw rod (18), a slide plate (19) and a connecting rod (20), one end of the connecting rod (20) is pivotally mounted on the inner wall of the two ends of the movable template (3), a slide groove (17) is provided inside the two ends of the U-shaped support frame (9), the screw rod (18) is limitedly rotated and installed inside the slide groove (17), and a second supporting mechanism is provided between the transverse support rod (10) and the variable-section template (2) and the movable template (3).

2. The variable cross-section tunnel lining trolley according to claim 1, characterized in that: The first supporting mechanism comprises a first vertical rod (13) and two second vertical rods (14); the two second vertical rods (14) are arranged on both sides of the first vertical rod (13); and an X-shaped supporting frame (15) is fixedly arranged between the second vertical rod (14) and the first vertical rod (13).

3. The variable cross-section tunnel lining trolley according to claim 2, characterized in that: The first supporting mechanism is fixedly arranged on the top of the U-shaped supporting frame (9) and the first longitudinal beam (22), respectively, and the tops of the first vertical rod (13) and the second vertical rod (14) are fixedly connected to the bottom of the variable-section template (2).

4. The variable cross-section tunnel lining trolley according to claim 1, characterized in that: The second supporting mechanism comprises a first hydraulic rod (11), wherein the first hydraulic rod (11) is symmetrically fixedly mounted inside the two ends of the transverse supporting rod (10), a moving rod (12) is fixedly mounted on one end of the output rod of the first hydraulic rod (11), and a supporting plate (4) is fixedly provided on the outer end of the moving rod (12).

5. The variable cross-section tunnel lining trolley according to claim 4, characterized in that: The support plate (4) is in an arc shape and is arranged on the inner side of the connection position between the variable-section template (2) and the movable template (3) and in contact with the inner wall thereof. Through grooves (5) are provided inside the variable-section template (2) and the movable template (3).

6. The variable cross-section tunnel lining trolley according to claim 5, characterized in that: A second longitudinal beam (23) is fixedly arranged between the two ends of the transverse support rods (10) on the front and rear sides, and the second longitudinal beam (23) is arranged on both sides of the top end of the U-shaped support frame (9).

7. The variable cross-section tunnel lining trolley according to claim 1, characterized in that: The slide plate (19) is installed in a limited sliding manner inside the slide groove (17). The slide plate (19) is screwed inside the slide groove (17) through a screw hole. One end of the slide plate (19) is movably connected to the other end of the connecting rod (20) through a pivot.

8. The variable cross-section tunnel lining trolley according to claim 1, characterized in that: Slide rods (6) are installed at the bottom of both ends of the U-shaped support frame (9) in a limited sliding manner, a second hydraulic rod (21) is fixedly arranged inside the top end of the slide rod (6), an output rod of the second hydraulic rod (21) is fixedly connected to the inside of the U-shaped support frame (9), a movable base (7) is fixedly arranged at the bottom end of the slide rod (6), and a movable wheel (8) is rotatably arranged inside the movable base (7).

Images