Arch frame transportation limiting device

Abstract

The utility model provides an arch frame transportation limiting device which comprises an arch frame base installed on an arch frame trolley, an L-shaped installation base is fixed to the top of the arch frame base, a clamp is adjustably and fixedly installed on the L-shaped installation base through a bolt assembly, and the top of the clamp is used for positioning and supporting an arch frame to be installed. Preferably, the arch frame base is provided with a head clamping plate and a tail clamping plate in a sliding mode. According to the device, a bracket structure of an existing lagging jack trolley is improved, so that a slope supporting and limiting structure can be formed, the device is well suitable for installation of a tunnel initial supporting lagging jack with a slope, the lagging jack installation efficiency and quality are guaranteed, the installation difficulty is reduced, and the working condition adaptability of the lagging jack trolley is enhanced; the device is simple in material taking, field material waste is utilized, the device is convenient to install, and a large amount of manpower is saved during arch frame installation.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel engineering equipment field, concretely is a kind of arch frame transport limiting device. BACKGROUND

[0002] In the tunnel primary support arch installation construction of long and large gradient, arch frame trolley supporting operation, due to the existence of gradient, arch frame top surface is not horizontal plane, but inclined plane with gradient.The plane of bracket of arch frame trolley is horizontal, thereby causing gap when arch frame transport is fixed, stability drops substantially, and transport safety hidden danger rises substantially.If it is transported to the working face by single frame in traditional way and then assembled, it will increase working time, and the transport function of equipment is not effectively played, and economic type drops substantially. SUMMARY

[0003] To solve the current technical problems, the main purpose of the utility model is to provide an arch frame transport limiting device, which improves the bracket structure of the existing arch frame trolley to form an inclined plane supporting and limiting structure, thereby well adapting to the installation of the tunnel primary support arch with gradient, thereby ensuring the installation efficiency and quality of the arch, reducing the installation difficulty, enhancing the working condition adaptability of the arch frame trolley, and the device is simple in material selection, waste materials are utilized on site, the device is convenient to install, and a large amount of manpower is saved during arch installation.

[0004] To achieve the above technical features, the utility model is implemented as follows: an arch frame transport limiting device, comprising an arch base installed on an arch frame trolley, an L-shaped mounting seat fixed on the top of the arch base, and a clamp adjustably fixed on the L-shaped mounting seat through a bolt assembly, the top of the clamp being used for positioning and supporting the arch to be installed.

[0005] Preferably, the arch base is slidably provided with a head clamping plate and a tail clamping plate.

[0006] The L-shaped mounting seat comprises an L-shaped mounting plate, the bottom plate of the L-shaped mounting plate being fixed on the top of the arch base by welding, and a plurality of first through holes being processed on the vertical plate of the L-shaped mounting plate, the first through holes being used for penetrating the bolt assembly.

[0007] The L-shaped mounting plate is cut from angle steel material.

[0008] The clamp comprises a clamping plate body, a plurality of second through holes being processed on the clamping plate body, the second through holes being used for penetrating the bolt assembly, the bottom end face of the clamping plate body being flush, a head clamping groove being arranged at one end of the top end head of the clamping plate body, a first barb plate being arranged at the end of the head clamping groove, a plurality of tail clamping grooves being arranged at the tail end of the top of the clamping plate body, and a second barb plate being arranged at the end of each tail clamping groove.

[0009] The first and second through holes are arranged at equal intervals.

[0010] The head slot is higher than the tail slot.

[0011] The head slot and tail slot are used to support and cooperate with the arch frame, so that the arch frame forms a certain tilt angle.

[0012] The clamp is made by cutting steel plate.

[0013] The present invention has the following beneficial effects:

[0014] 1. This utility model device improves the bracket structure of the existing arch frame trolley to form an inclined support and limiting structure, which can better adapt to the installation of the initial support arch frame in the tunnel with slope, thereby ensuring the installation efficiency and quality of the arch frame, reducing the installation difficulty, and enhancing the working condition adaptability of the arch frame trolley. Moreover, the device is simple to obtain materials, makes use of waste materials on site, is easy to install, and saves a lot of manpower during the installation of the arch frame.

[0015] 2. The L-shaped mounting base described above can be used to reliably fix and install the clamp, and can also be used to install on the top of the arch frame base of an existing arch frame trolley.

[0016] 3. It is made by cutting the angle steel material mentioned above, which simplifies its structure, reduces processing costs, and also reduces processing difficulty.

[0017] 4. The aforementioned clamps facilitate the subsequent positioning of the steel arch frame, allowing the steel arch frame to be installed onto the top of the tunnel after being positioned and clamped.

[0018] 5. The equally spaced through holes facilitate subsequent adjustment of the installation position of the clamps, thus enabling them to adapt well to steel arch frames of different sizes.

[0019] 6. The height difference between the head slot and the tail slot ensures that the subsequent steel arch frame can form a certain tilt angle, thereby adapting to the slope of the tunnel top. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a three-dimensional view of the overall structure of this utility model.

[0022] Figure 2 This is a three-dimensional drawing of the clamp of this utility model.

[0023] Figure 3 This is a three-dimensional view of the L-shaped mounting base of this utility model.

[0024] Figure 4 This is a three-dimensional view of the arch frame base of this utility model.

[0025] Figure 5 This is an exploded view of the overall structure of this utility model.

[0026] Figure 6 This is a preliminary support diagram of the arch frame of this utility model.

[0027] Figure 7 This is a diagram showing the arch frame clamping and supporting state of this utility model.

[0028] In the diagram: 1. Clamp; 2. L-shaped mounting base; 3. Bolt assembly; 4. Arch frame base; 5. Tail clamping plate; 6. Head clamping plate; 7. First arch beam; 8. Arch frame; 9. Second arch beam; 10. Third arch beam.

[0029] Head slot 101, tail slot 102, second barb plate 103, plate body 104, second through hole 105, first barb plate 106;

[0030] L-shaped mounting plate 201, first through hole 202. Detailed Implementation

[0031] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0032] See Figures 1-7 An arch frame transport limiting device includes an arch frame base 4 mounted on an arch frame trolley. An L-shaped mounting seat 2 is fixed to the top of the arch frame base 4. A clamp 1 is adjustablely fixed to the L-shaped mounting seat 2 via a bolt assembly 3. The top of the clamp 1 is used to position and support the arch frame to be installed. A head clamp 6 and a tail clamp 5 are slidably provided on the arch frame base 4. This device improves the existing arch frame trolley's support structure, enabling it to form an inclined support limiting structure. This allows it to adapt well to the installation of initial support arch frames in tunnels with slopes, thus ensuring installation efficiency and quality, reducing installation difficulty, and enhancing the adaptability of the arch frame trolley to various working conditions. Furthermore, the device uses simple materials, utilizes on-site waste materials, and is easy to install, saving significant manpower during arch frame installation. In practical use, by positioning and supporting the arch frame 8 on the clamp 1, the arch frame 8 has a certain inclination, adapting to the slope of the tunnel roof and ensuring reliable contact between the arch frame and the tunnel roof.

[0033] Furthermore, the L-shaped mounting base 2 includes an L-shaped mounting plate 201. The base plate of the L-shaped mounting plate 201 is welded to the top of the arch frame base 4. Multiple first through holes 202 are machined on the upright plate of the L-shaped mounting plate 201, which are used to pass through the bolt assembly 3. The L-shaped mounting base 2 described above can be used to reliably fix and install the clamp 1, and can also be used to install it on the top of the existing arch frame base 4 of the arch frame trolley. The L-shaped mounting plate 201 can be used for subsequent positioning and installation of the clamp 1. The first through holes 202 facilitate subsequent engagement with the clamp 1, thereby adjusting its installation position to accommodate steel arch frames of different sizes.

[0034] Furthermore, the L-shaped mounting plate 201 is made of angle steel. Using angle steel simplifies its structure, reduces processing costs, and lowers processing difficulty, thus achieving the goal of saving materials.

[0035] Furthermore, the clamp 1 includes a clamping plate body 104, on which multiple second through holes 105 are machined. The second through holes 105 are used to pass through the bolt assembly 3. The bottom end face of the clamping plate body 104 is flush. A head groove 101 is provided at one end of the top of the clamping plate body 104. A first barb plate 106 is provided at the end of the head groove 101. Multiple tail grooves 102 are provided at the tail end of the top of the clamping plate body 104. A second barb plate 103 is provided at the end of each tail groove 102. The clamp 1 described above facilitates the subsequent positioning of the steel arch frame, and then the steel arch frame with installation is installed on the top of the tunnel after being positioned and clamped.

[0036] Furthermore, the first through hole 202 and the second through hole 105 are both arranged at equal intervals. This arrangement of equally spaced through holes facilitates subsequent adjustment of the installation position of the clamp 1, thus enabling it to adapt well to steel arch frames of different sizes.

[0037] Furthermore, the height of the head slot 101 is higher than the height of the tail slot 102. This height difference between the head slot 101 and the tail slot 102 ensures that the subsequent steel arch can form a certain tilt angle, thereby adapting to the slope of the tunnel roof.

[0038] Furthermore, the head slot 101 and the tail slot 102 are respectively used to support and cooperate with the arch frame 8, so that the arch frame 8 forms a certain tilt angle. By setting a certain tilt angle, the angle of the arch frame 8 is matched with that of the tunnel slope top.

[0039] Furthermore, the clamp 1 is made of steel plate. Using the aforementioned materials simplifies the manufacturing process, reduces processing difficulty, and lowers production costs.

[0040] In this embodiment, see Figures 6-7 When installing the arch frame 8, firstly, the first arc beam 7 of the arch frame 8 is supported in the head slot 101, and the second arc beam 9 of the arch frame is supported in the tail slot 102. Then, the tail plate 5 is activated, and the third arc beam 10 of the arch frame is hooked by the tail plate 5, thus finally fixing the entire arch frame 8. Then, the entire arch frame base 4 is moved by the arch frame trolley, and the arch frame 8 is pressed tightly to the top of the tunnel to anchor it.

[0041] The specific construction and usage process and principle of this utility model are as follows:

[0042] Step 1: Process the clamp 1 according to the design dimensions and structure. The through hole directly below the head slot 101 can be left unprocessed. Process the L-shaped mounting base 2 and purchase the corresponding bolt assembly 3.

[0043] Step 2: Weld the processed L-shaped mounting base 2 to the existing arch frame base 4 of the trolley, with one outer end flush with the other.

[0044] Step 3: Based on the total number of arch frames 8 being transported, adjust the number of aligned holes between the first through hole 202 of the L-shaped mounting base 2 and the second through hole of the clamp 1, determine the relative position of the limiting device in the horizontal direction with the existing arch frame base 4 of the trolley, and ensure that the horizontal distance between the slots of the tail plate 5 and the head slots 101 when the tail plate 5 is in full stroke is greater than the horizontal width of the arch frame, and fix the clamp 1 and the L-shaped mounting base 2 with the bolt assembly 3.

[0045] Step 4: Using the hydraulic system of the arch frame trolley, adjust the existing arch frame base 4 of the trolley to lock the head slot 101 onto one side of the arch frame. Hydraulically adjust the distance between the tail slot 102 and the head slot 101 so that the tail slot 102 is locked onto the other side of the arch frame. Apply a certain lateral prestress through the tail plate 5 to ensure the stability of the arch frame during transportation.

Claims

1. A type of arch frame transport limiting device, characterized in that, Includes an arch frame base (4) installed on an arch frame trolley, an L-shaped mounting seat (2) fixed on the top of the arch frame base (4), and a clamp (1) fixedly installed on the L-shaped mounting seat (2) by means of a bolt assembly (3). The top of the clamp (1) is used to position and support the arch frame to be installed. The arch frame base (4) is slidably equipped with a head plate (6) and a tail plate (5).

2. The arch frame transport limiting device according to claim 1, characterized in that: The L-shaped mounting base (2) includes an L-shaped mounting plate (201). The bottom plate of the L-shaped mounting plate (201) is fixed to the top of the arch frame base (4) by welding. The vertical plate of the L-shaped mounting plate (201) is machined with a plurality of first through holes (202). The first through holes (202) are used to pass through the bolt assembly (3).

3. The arch frame transport limiting device according to claim 2, characterized in that: The L-shaped mounting plate (201) is made of angle steel.

4. The arch frame transport limiting device according to claim 2, characterized in that: The clamp (1) includes a clamp body (104), on which a plurality of second through holes (105) are machined. The second through holes (105) are used to pass through the bolt assembly (3). The bottom end face of the clamp body (104) is flush. A head groove (101) is provided at one end of the top head of the clamp body (104). A first barb plate (106) is provided at the end of the head groove (101). A plurality of tail grooves (102) are provided at the top tail end of the clamp body (104). A second barb plate (103) is provided at the end of each tail groove (102).

5. The arch frame transport limiting device according to claim 4, characterized in that: The first through hole (202) and the second through hole (105) are arranged at equal intervals.

6. The arch frame transport limiting device according to claim 4, characterized in that: The height of the head slot (101) is higher than the height of the tail slot (102).

7. The arch frame transport limiting device according to claim 6, characterized in that: The head slot (101) and tail slot (102) are respectively used to support and cooperate with the arch frame (8), so that the arch frame (8) forms a certain tilt angle.

8. The arch frame transport limiting device according to claim 6, characterized in that: The clamp (1) is made by cutting steel plate.

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