Self-steering tunnel secondary lining concrete trolley

Abstract

The utility model belongs to the technical field of lining trolleys, and particularly relates to a self-steering tunnel secondary lining concrete trolley which comprises a base and a main frame body, the bottom of the base is rotationally connected with a plurality of walking wheels, the top of the base is rotationally connected with the bottom of the main frame body through a stand column, and the top of the base is fixedly connected with a first air cylinder. The output end of the first air cylinder is fixedly connected with a wheel rack, the stand column is fixedly sleeved with a gear meshed with the wheel rack, the top of the base is fixedly connected with a guide sleeve corresponding to the wheel rack, and the wheel rack is inserted into the guide sleeve in a sliding mode. The bottom of the main frame body is rotationally connected with a plurality of arc-shaped transmission rods which are symmetrically arranged through a rotating shaft, and the edge of the base is rotationally sleeved with a plurality of mounting sleeves. According to the lining trolley, due to the arrangement of the steering mechanism and the supporting mechanism, the lining trolley can freely steer according to needs, and therefore the application range of the lining trolley is effectively widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lining trolley, especially to a self-steering tunnel secondary lining concrete trolley. BACKGROUND

[0002] The tunnel lining trolley is a special equipment used in the secondary lining in the tunnel construction process, which is used for the concrete lining construction of the inner wall of the tunnel. The concrete lining trolley is an indispensable non-standard product in the secondary lining in the tunnel construction process, mainly including a simple lining trolley, a full-hydraulic automatic walking lining trolley and a net rack type lining trolley. The full-hydraulic lining trolley can be divided into a side top arch type, a full-circle needle beam type, a bottom mold needle beam type and a full-circle passing type. The lifting slip form, the jacking slip form and the turnover mold are also commonly used in the hydraulic tunnel and bridge construction.

[0003] However, the existing lining trolley has a simple structure, lacks a steering support structure on the lining trolley, and the lining trolley cannot freely steer according to the needs, thereby affecting the application range of the lining trolley. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem of lacking a steering support structure on the lining trolley and the lining trolley cannot freely steer according to the needs in the background technology, and provides a self-steering tunnel secondary lining concrete trolley.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A self-steering tunnel secondary lining concrete trolley, including base and main frame body, the bottom of base is rotatably connected with a plurality of walking wheels, the top of base is rotatably connected with the bottom of main frame body through a stand, the top of base is fixedly connected with a first air cylinder, the output end of first air cylinder is fixedly connected with a gear rack, the stand is fixedly sleeved with a gear meshing with the gear rack, the top of base is fixedly connected with a guide sleeve corresponding to the gear rack, the gear rack is slidably inserted into the guide sleeve, the bottom of main frame body is rotatably connected with a plurality of arc-shaped transmission rods arranged symmetrically through a rotating shaft, the edge of base is rotatably sleeved with a plurality of mounting sleeves, the mounting sleeve and the arc-shaped transmission rod are connected through a second air cylinder, and the two ends of the second air cylinder are rotatably connected with the arc-shaped transmission rod and the mounting sleeve respectively.

[0007] Preferably, the end of the gear rack away from the first air cylinder is fixedly connected with a limiting block.

[0008] Preferably, the bottom of main frame body is fixedly connected with a plurality of guide rods arranged symmetrically, the bottom of guide rod is fixedly connected with a guide block, and the top of base is provided with an annular guide rail corresponding to the guide block.

[0009] Preferably, a plurality of steel balls are connected in the annular guide rail, and edges of the steel balls are in contact with the guide blocks.

[0010] Preferably, a sliding block is fixedly connected to an inner wall of the mounting sleeve, and the top and the bottom of the base are each provided with an annular sliding rail corresponding to the sliding block.

[0011] Preferably, a tapered foot is fixedly connected to an end of the arc-shaped transmission rod away from the main frame.

[0012] Compared with the prior art, the self-turning tunnel secondary lining concrete trolley has the following beneficial effects:

[0013] 1. In the self-turning tunnel secondary lining concrete trolley, the steering mechanism and the supporting mechanism are arranged, so that the lining trolley can be freely steered as required, thereby effectively improving the application range of the lining trolley.

[0014] 2. In the self-turning tunnel secondary lining concrete trolley, the guide rod and the guide block are arranged to support and guide the main frame, the steel balls can reduce the friction between the guide block and the inner wall of the annular guide rail, the sliding block can support the mounting sleeve, and the limiting block can limit the movement range of the gear rack. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structural schematic view of a self-turning tunnel secondary lining concrete trolley is provided.

[0016] Figure 2 A structural schematic view of a self-turning tunnel secondary lining concrete trolley is provided.

[0017] Figure 3 A structural schematic view of a self-turning tunnel secondary lining concrete trolley is provided. Figure 1 A structural schematic view of a self-turning tunnel secondary lining concrete trolley is provided.

[0018] In the drawings: 1 base, 2 main frame, 3 traveling wheel, 4 stand, 5 first air cylinder, 6 gear rack, 7 gear, 8 guide sleeve, 9 rotating shaft, 10 arc-shaped transmission rod, 11 mounting sleeve, 12 second air cylinder, 13 limiting block, 14 guide rod, 15 guide block, 16 steel ball, 17 sliding block, 18 tapered foot. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the self-turning tunnel secondary lining concrete trolley will be clearly and completely described below with reference to the drawings in the embodiments of the self-turning tunnel secondary lining concrete trolley. Obviously, the described embodiments are only part of the embodiments of the self-turning tunnel secondary lining concrete trolley, rather than all the embodiments.

[0020] Refer to Figures 1-2The self-turning tunnel secondary lining concrete trolley comprises a base 1 and a main frame body 2, the bottom of the main frame body 2 is fixedly connected with a plurality of guide rods 14 arranged symmetrically, the bottom of the guide rod 14 is fixedly connected with a guide block 15, the guide block 15 plays a guiding role on the main frame body 2, the top of the base 1 is provided with a ring-shaped guide rail corresponding to the guide block 15, a plurality of steel balls 16 are slidably connected in the ring-shaped guide rail, the edge of the steel ball 16 is in contact with the guide block 15, and the friction between the guide block 15 and the inner wall of the ring-shaped guide rail is reduced;

[0021] In the embodiment, a plurality of walking wheels 3 are rotationally connected to the bottom of the base 1, the base 1 is conveniently moved, the top of the base 1 is rotationally connected to the bottom of the main frame body 2 through a stand column 4, the top of the base 1 is fixedly connected with a first air cylinder 5, the output end of the first air cylinder 5 is fixedly connected with a rack 6, and the rack 6 is used for driving a gear 7 to rotate;

[0022] In the embodiment, the rack 6 is fixedly connected with a limiting block 13 at the end away from the first air cylinder 5, the stand column 4 is fixedly sleeved with the gear 7 engaged with the rack 6, the top of the base 1 is fixedly connected with a guide sleeve 8 corresponding to the rack 6, the guide sleeve 8 plays a guiding role on the rack 6, the rack 6 is slidably inserted into the guide sleeve 8, and the bottom of the main frame body 2 is rotationally connected with a plurality of arc-shaped transmission rods 10 arranged symmetrically through a rotating shaft 9, which is used for fixing the direction of the trolley;

[0023] In the embodiment, a plurality of mounting sleeves 11 are rotationally sleeved at the edge of the base 1, the mounting sleeve 11 is connected between the arc-shaped transmission rod 10 and the second air cylinder 12, the inner wall of the mounting sleeve 11 is fixedly connected with a sliding block 17, the top and the bottom of the base 1 are each provided with a ring-shaped sliding rail corresponding to the sliding block 17, the two ends of the second air cylinder 12 are rotationally connected with the arc-shaped transmission rod 10 and the mounting sleeve 11 respectively, which is used for driving the arc-shaped transmission rod 10 to rotate, and the end of the arc-shaped transmission rod 10 away from the main frame body 2 is fixedly connected with a tapered foot 18, so as to ensure the fixing stability of the direction of the trolley.

[0024] In the embodiment, the first air cylinder 5 is started to drive the rack 6 to slide, the gear 7 is engaged between the rack 6 and the gear 7, the main frame body 2 can be driven to rotate through the stand column 4, the direction of the trolley is adjusted, the second air cylinder 12 is started to drive the arc-shaped transmission rod 10 to rotate, the bottom of the arc-shaped transmission rod 10 is in abutment with the ground, and the direction of the trolley can be fixed.

[0025] In the embodiment, the turning mechanism and the supporting mechanism are arranged, so that the lining trolley can be freely turned as required, thereby effectively improving the application range of the lining trolley.

[0026] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A self-steering tunnel secondary lining concrete trolley comprising a base (1) and a main frame (2), characterized in that: The bottom of the base (1) is rotatably connected with a plurality of walking wheels (3), the top of the base (1) is rotatably connected with the bottom of the main frame (2) through a stand (4), the top of the base (1) is fixedly connected with a first cylinder (5), the output end of the first cylinder (5) is fixedly connected with a gear rack (6), the stand (4) is fixedly sleeved with a gear (7) engaged with the gear rack (6), the top of the base (1) is fixedly connected with a guide sleeve (8) corresponding to the gear rack (6), the gear rack (6) is slidably inserted into the guide sleeve (8), the bottom of the main frame (2) is rotatably connected with a plurality of arc-shaped transmission rods (10) symmetrically arranged through a rotating shaft (9), the edges of the base (1) are rotatably sleeved with a plurality of mounting sleeves (11), the mounting sleeves (11) and the arc-shaped transmission rods (10) are connected through a second cylinder (12), and the two ends of the second cylinder (12) are rotatably connected with the arc-shaped transmission rods (10) and the mounting sleeves (11) respectively.

2. A self-steering tunnel secondary lining concrete trolley as claimed in claim 1, wherein: The end of the gear rack (6) away from the first cylinder (5) is fixedly connected with a limiting block (13).

3. A self-steering tunnel secondary lining concrete trolley as claimed in claim 1, wherein: The bottom of the main frame (2) is fixedly connected with a plurality of guide rods (14) symmetrically arranged, the bottom of the guide rod (14) is fixedly connected with a guide block (15), and the top of the base (1) is provided with an annular guide rail corresponding to the guide block (15).

4. A self-steering tunnel secondary lining concrete trolley as claimed in claim 3, wherein: A plurality of steel balls (16) are slidably connected in the annular guide rail, and the edges of the steel balls (16) are in contact with the guide block (15).

5. A self-steering tunnel secondary lining concrete trolley as claimed in claim 1, wherein: The inner wall of the mounting sleeve (11) is fixedly connected with a sliding block (17), and the top and the bottom of the base (1) are both provided with an annular sliding rail corresponding to the sliding block (17).

6. A self-steering tunnel secondary lining concrete trolley as claimed in claim 1, wherein: The end of the arc-shaped transmission rod (10) away from the main frame (2) is fixedly connected with a tapered foot (18).

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