Tunnel steel arch connection steel plate positioning auxiliary device and use method

Abstract

The application discloses a tunnel steel arch connecting steel plate positioning auxiliary device and a use method, and belongs to the technical field of tunnel construction. The application comprises a connecting rod, and a first cross rod and a second cross rod are connected to the connecting rod. The first cross rod is provided with a first connecting block which is connected to the wing plate of the steel arch through a first clamping groove, and the distance between the two first connecting blocks can be flexibly adjusted according to different specifications of the steel arch. The second cross rod is provided with a second connecting block which is connected to the connecting steel plate through a positioning column; meanwhile, the distance between the two second connecting blocks can be flexibly adjusted according to different specifications of the connecting steel plate. The application can not only complete the positioning work of the connecting steel plate, but also be suitable for the welding requirement between different types of steel arches and connecting steel plates. In addition, the positioning auxiliary device is simple in structure, low in manufacturing cost, and beneficial to popularization.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tunnel construction, and more particularly relates to a tunnel steel arch support connecting steel plate positioning auxiliary device and a use method. BACKGROUND

[0002] At present, in the field of tunnel steel arch support connecting steel plate construction, artificial method or fixed connecting steel plate positioning auxiliary device is generally used. The artificial method relies on manual control of the position of the connecting steel plate and the steel arch support, and after preliminary fixation by spot welding, reinforcement is carried out. This operation method has relatively large human error and poor accuracy of the position of the connecting steel plate; and is prone to cause bolt hole deviation of the connecting steel plate and steel arch support connection misplacement, which has a large safety and quality hidden danger.

[0003] The fixed connecting steel plate positioning auxiliary device relies on the fixed connecting steel plate positioning auxiliary device to control the position of the connecting steel plate and the steel arch support. Although this device can accurately control the position and improve the positioning accuracy of the connecting steel plate, it has poor applicability and can only meet the needs of one type of steel arch support connecting steel plate positioning; and has poor versatility, and when different types of steel arch supports are encountered, the connecting steel plate positioning auxiliary device needs to be frequently replaced, which affects the construction efficiency.

[0004] Through retrieval, the application case with Chinese patent application number 202122784182.4 discloses a tunnel steel arch support connecting plate welding auxiliary device. The application case realizes accurate positioning of the connecting plate at the end welding position of the I-beam through the welding auxiliary device body. The welding auxiliary device body includes a clamp and a positioning detection piece. The clamp effectively positions the connecting plate at the end welding position of the I-beam. The positioning detection piece and the clamp are positioned and matched to realize the positioning of the connecting plate at the end welding position of the I-beam, thereby improving the positioning accuracy of the connecting plate. However, the connecting plate welding auxiliary device of the application case can only meet the needs of one type of steel arch support connecting steel plate positioning, and the problem of poor versatility has not been effectively solved. SUMMARY

[0005] 1. Problem to be solved

[0006] In view of at least some problems existing in the above prior art, the application proposes a tunnel steel arch support connecting steel plate positioning auxiliary device and a use method. The technical scheme of the application can not only complete the positioning of the connecting steel plate and ensure the accuracy of the welding position between the connecting steel plate and the steel arch support, but also can be applied to the welding requirements between different types of steel arch supports and connecting steel plates, thereby ensuring the efficiency of the work.

[0007] 2. Technical scheme

[0008] In order to solve the above problems, the technical scheme adopted by the application is as follows:

[0009] The tunnel steel arch connecting steel plate positioning auxiliary device of the present application comprises a connecting rod, a first cross bar and a second cross bar are connected to the connecting rod, wherein a first connecting block for connecting a steel arch is slidably arranged on the first cross bar, and the distance between two first connecting blocks can be flexibly adjusted according to different specifications of the steel arch; a second connecting block for positioning a connecting steel plate is slidably arranged on the second cross bar, and the distance between two second connecting blocks can be flexibly adjusted according to different specifications of the connecting steel plate.

[0010] Further, the first connecting block is sleeved on the first cross bar through the through hole formed therein, the end of the first connecting block away from the second cross bar is provided with a first clamping groove for clamping the wing plate of the steel arch, and the first connecting block and the first clamping groove are both provided with locking assemblies for locking operation between the first connecting block and the first cross bar and between the first clamping groove and the wing plate of the steel arch.

[0011] Further, the side surface of the first connecting block is further provided with a second clamping groove for fixing an arc striking plate, and the second clamping groove is also provided with a locking assembly for locking and positioning the arc striking plate to ensure the welding quality between the connecting steel plate and the steel arch.

[0012] Further, the locking assembly comprises a fastening hole formed in the corresponding component and a locking piece matched with the fastening hole, wherein the fastening hole and the locking piece are in threaded cooperation.

[0013] Further, the second connecting block is sleeved on the second cross bar through the through hole formed therein, and the side surface of the second connecting block is provided with a positioning column, which is located on the same side as the second clamping groove on the first connecting block; the positioning column and the pre-installed hole on the connecting steel plate are matched with each other to complete the positioning operation of the connecting steel plate.

[0014] Further, the second cross bar is connected to a slotted sliding block at both ends, and the second cross bar is slidably matched with the connecting rod through the sliding block.

[0015] Further, the second connecting block and the sliding block are both provided with respective locking assemblies.

[0016] The positioning method of the tunnel steel arch connecting steel plate of the present application utilizes the above-mentioned positioning auxiliary device for positioning operation, which comprises the following steps:

[0017] Step one, adjust the first connecting block on the first cross bar so that the distance between two first connecting blocks is consistent with the distance between the wing plates on both sides of the steel arch, and then lock and position the first connecting block;

[0018] Step two, the first clamping groove on the first connecting block is clamped on the wing plate of the steel arch, and is locked to complete the connection between the positioning auxiliary device and the steel arch; meanwhile, the arc guide plate is fixed in the second clamping groove, and is locked;

[0019] Step three, according to the size of the connecting steel plate, the spacing of the two second connecting blocks on the second cross rod is adjusted and locked; then the positioning column on the second connecting block and the reserved mounting hole on the connecting steel plate are matched to complete the positioning of the connecting steel plate;

[0020] Step four, the second cross rod is moved to drive the second connecting block to slide along the connecting rod, so that the connecting steel plate is in contact with the end face of the steel arch, and then the sliding block is locked to complete the positioning operation between the connecting steel plate and the steel arch, and finally the corresponding welding operation is performed.

[0021] 3, beneficial effects

[0022] Compared with the prior art, the beneficial effects of the present application are:

[0023] (1) The positioning auxiliary device for the connecting steel plate of the tunnel steel arch, the connecting rod is connected with the first cross rod and the second cross rod, the first cross rod is slidably provided with the first connecting block, and the second cross rod is slidably provided with the second connecting block; wherein the first connecting block and the second connecting block are both provided with two, the two first connecting blocks are used for fixing the wing plate of the connecting steel arch, and the two first connecting blocks can be away from or close to each other through sliding, so as to be suitable for fixing operation of different steel arches; similarly, the two second connecting blocks can be used for positioning operation of the corresponding specification connecting steel plate, so as to ensure the accurate positioning of the steel arch and the connecting steel plate, and provide a good operation basis for the subsequent welding operation.

[0024] (2) The positioning auxiliary device for the connecting steel plate of the tunnel steel arch, the first connecting block is provided with the first clamping groove, and the first clamping groove and the corresponding locking assembly are matched to complete the clamping operation of the wing plate of the steel arch; the second connecting block is provided with the positioning column, and the positioning column, the reserved mounting hole on the connecting steel plate and the corresponding locking assembly are matched to complete the positioning of the connecting steel plate.

[0025] (3) The positioning auxiliary device for the connecting steel plate of the tunnel steel arch, the first connecting block is further provided with the second clamping groove, the second clamping groove and the positioning column on the second connecting block are located on the same side, and the second clamping groove is connected with the locking assembly, the second clamping groove is provided to lock and position the arc guide plate, and the arc is started from the arc guide plate during welding, so as to further ensure the welding quality between the connecting steel plate and the steel arch. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1It is a structural schematic view of a tunnel steel arch connecting steel plate positioning auxiliary device of the present application;

[0027] Figure 2 It is another view of a structural schematic view of a tunnel steel arch connecting steel plate positioning auxiliary device of the present application;

[0028] Figure 3 It is a use state schematic view of the positioning auxiliary device of the present application.

[0029] In the figure: 1, connecting rod; 2, first cross bar; 3, second cross bar; 4, first connecting block; 41, first clamping groove; 42, second clamping groove; 5, second connecting block; 51, positioning column; 6, sliding block; 7, locking piece; 8, steel arch; 9, connecting steel plate; 10, arc guide plate. DETAILED DESCRIPTION

[0030] The present application will be further described below in combination with specific embodiments.

[0031] Embodiment 1

[0032] In combination with Figure 1 , Figure 2 shown, a tunnel steel arch connecting steel plate positioning auxiliary device of the present embodiment includes connecting rods 1, a first cross bar 2 and a second cross bar 3. Among them, the connecting rods 1 are provided with two, the first cross bar 2 is fixedly arranged at the end of the connecting rod 1, and the two ends of the second cross bar 3 are in sliding fit with the corresponding connecting rod 1.

[0033] The first cross bar 2 is provided with a first connecting block 4 slidingly arranged thereon, and the second cross bar 3 is provided with a second connecting block 5 slidingly arranged thereon, and both the first connecting block 4 and the second connecting block 5 are provided with two. Among them, the first connecting block 4 is used for connecting the steel arch 8; the second connecting block 5 is used for positioning the connecting steel plate 9. In addition, in order to prevent the second cross bar 3 and the connecting rod 1 from falling off during the sliding process, a limiting block (not shown in the figure) can be arranged at the end of the connecting rod 1.

[0034] The tunnel steel arch connecting steel plate positioning auxiliary device of the embodiment is provided with a first connecting block 4 and a second connecting block 5, both of which are slidably connected; the spacing between the two first connecting blocks 4 is adjusted, so that the positioning auxiliary device can be suitable for the fixing operation of steel arches 8 of different specifications; the spacing between the two second connecting blocks 5 is adjusted to be suitable for the positioning operation of connecting steel plates 9 of different specifications. Compared with the traditional positioning auxiliary device, the positioning auxiliary device of the embodiment not only can complete the positioning accuracy between the connecting steel plate 9 and the steel arch 8, but also can be suitable for the positioning requirements between steel arches 8 and connecting steel plates 9 of different specifications, and has good universality. When different types of steel arches 8 are encountered, there is no need to frequently replace the positioning auxiliary device, thereby improving the construction efficiency.

[0035] Specifically, a through hole is provided in the first connecting block 4, and the first connecting block 4 is sleeved on the first horizontal rod 2 through the through hole, so that the first connecting block 4 can move back and forth along the first horizontal rod 2 to adjust the spacing between the two first connecting blocks 4, thereby being suitable for the connection operation of steel arches 8 of different specifications.

[0036] Meanwhile, the first connecting block 4 is matched with a locking assembly, which completes the locking operation between the first connecting block 4 and the first horizontal rod 2 after the position of the first connecting block 4 is adjusted. In the embodiment, the locking assembly includes a locking hole provided in the first connecting block 4 and a locking piece 7 matched with the locking hole. Preferably, the locking hole is a threaded hole, and the locking piece 7 is an L-shaped quick tightening wrench bolt, which are connected through threads to facilitate locking operation.

[0037] The first connecting block 4 is provided with a first clamping groove 41 and a second clamping groove 42. The first clamping groove 41 is provided at the end of the first connecting block 4 away from the second horizontal rod 3, and is used for clamping the wing plate of the steel arch 8. The second clamping groove 42 is provided on the side surface of the first connecting block 4, and is used for locking and positioning the arc guide plate 10. When welding, the arc is started from the arc guide plate 10 to ensure the welding quality between the connecting steel plate 9 and the steel arch 8.

[0038] In addition, the first clamping groove 41 and the second clamping groove 42 are each equipped with a locking assembly. That is, a threaded hole is provided on itself, and an L-shaped quick tightening wrench bolt is matched to complete the locking operation of the respective positioning object.

[0039] The second connecting block 5 is also provided with a through hole, and the second connecting block 5 is sleeved on the second cross rod 3 through the through hole, so that the second connecting block 5 can move back and forth along the second cross rod 3, the spacing between the two second connecting blocks 5 is adjusted, and thus the positioning operation of the connecting steel plate 9 of different specifications is applicable.

[0040] Specifically, referring to Figure 1 As shown in the figure, the side surface of the second connecting block 5 is provided with a positioning column 51, the positioning column 51 is located on the same side as the second clamping groove 42 on the first connecting block 4, the positioning column 51 penetrates a reserved mounting hole on the connecting steel plate 9, so as to complete the positioning operation of the connecting steel plate 9.

[0041] The second cross rod 3 is connected with a sliding block 6 at both ends, and the sliding block 6 is provided with a sliding groove through which the connecting rod 1 penetrates. The second cross rod 3 is in sliding fit with the connecting rod 1 through the groove on the sliding block 6, the movement of the connecting steel plate 9 on the positioning column 51 is driven by the second cross rod 3, so that the connecting steel plate 9 is close to the end of the steel arch 8 to be welded, and is located at the corresponding welding position. Preferably, the end of the steel arch 8 is located at the center position of the connecting steel plate 9. Similarly, the second connecting block 5 and the sliding block 6 are respectively provided with a locking assembly, and the locking assembly on the second connecting block 5 is located on the other side of the positioning column 51.

[0042] Embodiment 2

[0043] The positioning method of the connecting steel plate of the tunnel steel arch of the embodiment comprises the following steps:

[0044] Step one, adjust the first connecting block 4 on the first cross rod 2, so that the spacing between the two first connecting blocks 4 is consistent with the distance between the side plates on both sides of the steel arch 8, after the position is adjusted in place, the first connecting block 4 is locked and positioned by the locking assembly;

[0045] Step two, the first clamping groove 41 on the first connecting block 4 is clamped on the side plate of the steel arch 8, and is locked to complete the connection between the positioning auxiliary device and the steel arch 8; at the same time, the arc striking plate 10 is fixed in the second clamping groove 42, and the locking is completed;

[0046] Step three, according to the size of the connecting steel plate 9, adjust the spacing between the two second connecting blocks 5 on the second cross rod 3, and lock them; then complete the positioning of the connecting steel plate 9 through the cooperation between the positioning column 51 on the second connecting block 5 and the reserved mounting hole on the connecting steel plate 9;

[0047] Step four, moving the second cross bar 3, driving the second connecting block 5 along the connecting rod 1 to slide, so that the connecting steel plate 9 is in contact with the end surface of the steel arch 8, and then locking the sliding block 6 to complete the positioning operation between the connecting steel plate 9 and the steel arch 8; at this time, one side of the arc guide plate 10 is in contact with the wing plate upper end surface of the steel arch 8, and one end of the arc guide plate 10 is in contact with the side wall of the connecting steel plate 9;

[0048] Step five, after the above positioning operation is completed, the last welding operation is performed between the steel arch 8, the connecting steel plate 9 and the arc guide plate 10.

[0049] The tunnel steel arch connecting steel plate positioning auxiliary device and the use method of the embodiment solve the problems of poor precision and low efficiency when the artificial method is used to position the connecting steel plate 9, and solve the problem that the traditional fixed connecting steel plate positioning auxiliary device affects the construction efficiency due to poor universality when different types of steel arch connecting steel plates are positioned. Meanwhile, the positioning auxiliary device of the embodiment has simple structure and low manufacturing cost, and is conducive to promotion.

[0050] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A positioning auxiliary device for connecting steel plates of a tunnel steel arch frame, characterized in that: Includes a connecting rod (1), on which a first crossbar (2) and a second crossbar (3) are connected. The first crossbar (2) is slidably provided with a first connecting block (4) for connecting the steel arch frame (8), and the second crossbar (3) is slidably provided with a second connecting block (5) for positioning the connecting steel plate (9). The first connecting block (4) is sleeved on the first crossbar (2) through a through hole. The end of the first connecting block (4) away from the second crossbar (3) is provided with a first slot (41), and both the first connecting block (4) and the first slot (41) are equipped with locking components. The side of the first connecting block (4) is also provided with a second slot (42) for fixing the arc-leading plate (10), and the second slot (42) is also equipped with a locking component; The second connecting block (5) is fitted onto the second crossbar (3) through a through hole, and the side of the second connecting block (5) is provided with a positioning post (51), which is located on the same side as the second slot (42) on the first connecting block (4).

2. The tunnel steel arch frame connecting steel plate positioning auxiliary device according to claim 1, characterized in that: The locking assembly includes a fastening hole on the corresponding component and a locking member (7) that mates with the fastening hole, wherein the fastening hole and the locking member (7) are threaded together.

3. A positioning auxiliary device for connecting steel plates of a tunnel steel arch frame according to claim 1 or 2, characterized in that: Both ends of the second crossbar (3) are connected to grooved sliding blocks (6), and the second crossbar (3) slides with the connecting rod (1) through the sliding blocks (6).

4. The tunnel steel arch frame connecting steel plate positioning auxiliary device according to claim 3, characterized in that: The second connecting block (5) and the sliding block (6) are each equipped with their own locking components.

5. A method for positioning the connecting steel plate of a tunnel steel arch frame using the positioning auxiliary device for the connecting steel plate of the tunnel steel arch frame as described in claim 4, characterized in that: Includes the following steps, Step 1: Adjust the first connecting block (4) on the first crossbar (2) so that the distance between the two first connecting blocks (4) is consistent with the distance between the two wing plates on both sides of the steel arch frame (8), and then lock and position the first connecting block (4); Step 2: Secure the first slot (41) on the first connecting block (4) onto the wing plate of the steel arch frame (8) and lock it in place to complete the connection between the positioning auxiliary device and the steel arch frame (8); at the same time, fix the arc-guiding plate (10) in the second slot (42) and lock it in place. Step 3: According to the size of the connecting steel plate (9), adjust the distance between the two second connecting blocks (5) on the second crossbar (3) and lock them; then, through the mutual cooperation between the positioning post (51) on the second connecting block (5) and the reserved mounting hole on the connecting steel plate (9), complete the positioning work of the connecting steel plate (9); Step 4: Move the second crossbar (3) to drive the second connecting block (5) to slide along the connecting rod (1) so that the connecting steel plate (9) contacts the end face of the steel arch frame (8). Then lock the sliding block (6) to complete the positioning operation between the connecting steel plate (9) and the steel arch frame (8). Finally, perform the corresponding welding operation.

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