Rapid segment bolt radian detection platform and detection method

Abstract

The invention discloses a segment bolt radian rapid detection platform and method, the detection platform comprises a reference bottom plate, a lower arc block and an upper arc block, the reference bottom plate is provided with a first arc groove and a second arc groove, and the lower end face of the lower arc block and the lower end face of the upper arc block are both provided with arc protruding blocks. The lower arc block and the upper arc block are used for being inserted into the first arc groove and the second arc groove respectively, the two ends of the lower arc block and the two ends of the upper arc block are fixed to the reference bottom plate through bolts, and the lower arc surface of the lower arc block and the upper arc surface of the upper arc block jointly form an arc detection channel for the radian size of the segment bolt. Compared with the prior art, the device has the advantages that the radian can be rapidly adjusted at a time, the whole arc-shaped groove is adopted for radian adjustment, and adjustment is faster. The upper arc block and the lower arc block are assembled into a whole set, can be matched according to product specifications, are suitable for various product specifications, do not need to replace a reference bottom plate, and are rapid in die replacement and low in cost.

Description

Technical Field

[0001] The invention relates to a rapid detection platform and method for the radian of a pipe segment bolt. Background Art

[0002] In shield tunnel construction, segment bolts are used to connect prefabricated segments to form a complete ring structure. Segment bolts play a key role in connection and force transmission. The curvature of the segment bolts is crucial. It affects the compatibility with the segments. The appropriate curvature ensures a tight fit and stable connection. It is related to installation operations. The correct curvature makes installation convenient and the tightening effect is good. It has an effect on long-term performance and affects durability and structural safety. The appropriate curvature can prevent corrosion, maintain stability, and ensure the long-term safety of the tunnel. The curvature of the segment bolts needs to be tested during the production process to determine whether they are qualified. Currently, the relevant patents for the segment bolt curvature detection platform include CN202121090452.5, CN202321948945.7 and CN202122253239.8, among which: CN202121090452.5 is a segment bolt curvature inspection device, which has limitations in multi-specification and batch production, and requires multiple adjustments of curvature, which is cumbersome; CN202321948945.7 and CN202122253239.8 require replacement of the detection plate each time the curvature is adjusted, and one detection plate can only have one product specification curvature, and the detection plate has high mass and cost. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention proposes a rapid detection platform and method for the curvature of segment bolts.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a rapid detection platform for the curvature of segment bolts, including a reference base plate, a lower arc block and an upper arc block, a first arc groove and a second arc groove are arranged on the reference base plate, and arc protrusions are arranged on the lower end surfaces of the lower arc block and the upper arc block, which are respectively used to be inserted into the first arc groove and the second arc groove, the two ends of the lower arc block and the upper arc block are fixed together with the reference base plate by bolts, and the lower arc surface of the lower arc block and the upper arc surface of the upper arc block together constitute an arc detection channel for the curvature size of the segment bolts.

[0005] Furthermore, rectangular grooves are provided on both side surfaces of the reference base plate for cooperating with bolts to fix the two ends of the lower arc block and the upper arc block.

[0006] Furthermore, fixing blocks are arranged at both ends of the lower arc block, and threaded holes are arranged on the fixing blocks for cooperating with bolts to fix the two ends of the lower arc block and the reference base plate together.

[0007] Furthermore, an upper notch is provided on the fixing block at the left end of the lower arc block.

[0008] Furthermore, fixing blocks are arranged at both ends of the upper arc block, and threaded holes are arranged on the fixing blocks for cooperating with bolts to fix the two ends of the upper arc block and the reference base plate together.

[0009] Furthermore, a lower notch is provided on the fixing block at the left end of the upper arc block.

[0010] Furthermore, height-adjusting seats are provided at the four corners of the bottom of the reference base plate.

[0011] Furthermore, the top end of the height-adjusting seat is provided with an external thread, which is threadedly connected to a threaded hole provided on the reference bottom plate.

[0012] Furthermore, the first arc-shaped grooves and the second arc-shaped grooves are grouped in pairs, and are respectively used to install paired lower arc blocks and upper arc blocks of different specifications.

[0013] The present invention also provides a method for quickly detecting the curvature of a segment bolt based on a detection platform, comprising the following steps:

[0014] Step 1: Assemble the inspection platform and set up an arc-shaped inspection channel:

[0015] 1) Connect the height adjustment seat to the reference base plate through threads and adjust the height of the reference base plate;

[0016] 2) Select the paired lower arc block and upper arc block according to the specifications of the segment bolts to be inspected, then insert the arc-shaped convex block of the lower arc block into the first arc-shaped groove of the reference base plate, and fix the two ends of the lower arc block to the reference base plate with bolts; then insert the arc-shaped convex block of the upper arc block into the second arc-shaped groove of the reference base plate, and fix the two ends of the upper arc block to the reference base plate with bolts, so as to obtain an arc-shaped inspection channel composed of the upper arc surface of the upper arc block and the lower arc surface of the lower arc block;

[0017] Step 2: Push the tail of the segment bolt to be tested into the arc detection channel close to the reference base plate. If the tail of the segment bolt can pass through the arc detection channel smoothly, the arc size of the segment bolt is judged to be qualified; if the tail of the segment bolt cannot pass through the arc detection channel smoothly, the arc size of the segment bolt is judged to be unqualified.

[0018] Compared with the prior art, the present invention has the following positive effects:

[0019] The present invention can quickly adjust the curvature in one go, and the curvature adjustment adopts an integral arc groove, which makes the adjustment faster. The present invention assembles the upper arc block and the lower arc block into a set, which can be matched according to product specifications and adapt to various product specifications without replacing the reference base plate. The upper arc block and the lower arc block are light in weight and low in cost. The segment bolt curvature rapid detection platform of the present invention can cope with products of multiple specifications, quickly change molds, and have low costs. The specific advantages are as follows:

[0020] (1) When inspecting segment bolts of multiple specifications, the mold can be changed quickly and easily, greatly improving the inspection efficiency;

[0021] (2) The arc block mode greatly reduces the detection cost compared to the detection plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of the detection platform of the present invention;

[0024] Figure 2 It is a structural diagram of the upper surface and left side of the reference base plate;

[0025] Figure 3 is a structural schematic diagram of the bottom surface of the reference bottom plate;

[0026] Figure 4 It is a stereogram of the lower arc block;

[0027] Figure 5 It is the main view of the lower arc block;

[0028] Figure 6 It is a three-dimensional diagram of the upper arc block;

[0029] Figure 7 It is the left view of the upper arc block;

[0030] Figure 8 It is a structural diagram of the height adjustment seat;

[0031] Fig. 9 It is a schematic diagram of the arc size of the segment bolts;

[0032] Fig.10 This is a schematic diagram of the qualified segment bolt arc A detection;

[0033] Reference numerals in the figures include:

[0034] Reference base plate 1, lower arc block 2, upper arc block 3, height adjustment seat 4, bolt 5;

[0035] Threaded hole 11, first arc-shaped groove 12, second arc-shaped groove 13, rectangular groove 14;

[0036] Threaded hole 21, lower arc surface 22, arc-shaped protrusion 23, upper notch 24;

[0037] Threaded hole 31, upper arc surface 32, arc-shaped protrusion 33, lower notch 34;

[0038] External thread 41. DETAILED DESCRIPTION

[0039] A rapid detection platform for the curvature of segment bolts, such as Figure 1 As shown, it includes: a reference base plate 1, a lower arc block 2, an upper arc block 3, a height adjustment seat 4 and a bolt 5; the bolt 5 is a GB / T 65 bolt (standard part), and the rest are non-standard parts, among which:

[0040] The structure of the reference base plate 1 is as follows Figure 2 and Figure 3 The figure shows: threaded holes 11, first arc grooves 12, second arc grooves 13 and rectangular grooves 14; wherein: the threaded holes 11 are arranged at the four corners of the bottom of the reference base plate, and are used to install the height adjustment seat 4, so as to adjust the setting height of the reference base plate. The first arc grooves 12 and the second arc grooves 13 are grouped in pairs, and are respectively used to install the paired lower arc blocks 2 and upper arc blocks 3 of different specifications. By replacing different upper and lower arc blocks, the curvature detection of various specifications of segment bolt products can be realized. Rectangular grooves 14 are arranged on both sides of the reference base plate 1, which are used to cooperate with the bolts 5 to fix the two ends of the lower arc block 2 and the upper arc block 3.

[0041] The structure of the lower arc block 2 is as follows Figure 4 and Figure 5 As shown, it includes: a threaded hole 21, a lower arc surface 22, an arc-shaped protrusion 23, and an upper notch 24. Fixed blocks are set at both ends of the lower arc block, and threaded holes 21 are set on the fixed blocks, which are used to cooperate with bolts 5 to fix the two ends of the lower arc block to the reference base plate 1 together; in order to quickly identify the installation direction of the lower arc block, an upper notch 24 is set on the fixed block at its left end; an arc-shaped protrusion 23 is set on the lower end surface of the lower arc block 2, which is used to be inserted into the corresponding first arc-shaped groove 12 on the reference base plate so as to position the lower arc block.

[0042] The structure of the upper arc block 3 is as follows Figure 6 and Figure 7 As shown, it includes: a threaded hole 31, an upper arc surface 32, an arc-shaped protrusion 33, and a lower notch 34. Fixed blocks are set at both ends of the upper arc block. The threaded holes 31 are set on the fixed blocks, which are used to cooperate with the bolts 5 to fix the two ends of the upper arc block to the reference base plate 1 together; in order to quickly identify the installation direction of the upper arc block, a lower notch 34 is set on the fixed block at its left end; an arc-shaped protrusion 33 is set on the lower end surface of the upper arc block 2, which is used to be inserted into the corresponding second arc-shaped groove 13 on the reference base plate so as to position the upper arc block.

[0043] The structure of the height adjustment seat 4 is as follows Figure 8 As shown, the top end of the height adjustment seat 4 is provided with an external thread 41 for cooperating with the threaded hole 11 of the reference base plate so as to adjust the height of the reference base plate.

[0044] The assembly instructions for the segment bolt curvature quick detection platform are as follows:

[0045] The external thread 41 of the height adjustment seat 4 is threadedly connected with the threaded hole 11 of the reference base plate; the arc-shaped protrusion 23 of the lower arc block 2 is inserted into the first arc-shaped groove 12 of the reference base plate 1, and the GB / T 65 bolt 5 is threadedly connected with the threaded hole 21 of the lower arc block 2 and fits with the rectangular groove 14 of the reference base plate 1; the arc-shaped protrusion 33 of the upper arc block 3 is inserted into the second arc-shaped groove 13 of the reference base plate 1, and the GB / T 65 bolt 5 is threadedly connected with the threaded hole 31 of the upper arc block 3 and fits with the rectangular groove 14 of the reference base plate 1.

[0046] The present invention can detect the arc A of the segment bolts, such as Fig. 9 shown.

[0047] Detection method of segment bolt arc A:

[0048] First, place the tail of the segment bolt close to the reference base plate 1, and push it into the arc channel formed by the upper arc surface 32 of the upper arc block 3 and the lower arc surface 22 of the lower arc block 2. Whether the arc A dimension meets the requirements is determined by whether it can pass through the arc channel smoothly. If the tail of the segment bolt can pass through the arc channel smoothly, the arc dimension A of the segment bolt meets the technical requirements; if the tail of the segment bolt cannot pass through the arc channel smoothly, the arc dimension A of the segment bolt is unqualified. The schematic diagram of the measurement process of the arc A of a qualified segment bolt is as follows, Fig.10 shown.

[0049] The working principle of the segment bolt radian rapid detection platform of the present invention is as follows:

[0050] In the detection platform of the present invention, the reference bottom plate adopts an arc groove design, which cooperates with the arc convex blocks of the upper and lower arc blocks to position the upper and lower arc blocks, and uses the detection channel composed of the upper and lower arc surfaces of the upper and lower arc blocks to quickly detect the arc size A of the segment bolts; by replacing different upper and lower arc blocks, the arc detection of products of multiple specifications can be achieved. The upper and lower arc blocks are light in weight and low in cost, and can achieve rapid mold change, thereby improving the detection efficiency during the production and inspection of multiple specifications of segment bolts. The detection platform of the present invention can be applied to the rapid detection of the arc size A of segment bolts of different specifications.

Claims

1. A rapid detection platform for the curvature of segment bolts, characterized by: It includes a reference base plate, a lower arc block and an upper arc block. A first arc groove and a second arc groove are arranged on the reference base plate. Arc protrusions are arranged on the lower end surfaces of the lower arc block and the upper arc block, which are respectively used to be inserted into the first arc groove and the second arc groove. The two ends of the lower arc block and the upper arc block are fixed together with the reference base plate by bolts. The lower arc surface of the lower arc block and the upper arc surface of the upper arc block together constitute an arc detection channel for the arc size of the segment bolts.

2. A segment bolt radian rapid detection platform according to claim 1, characterized in that: Rectangular grooves are arranged on both side surfaces of the reference bottom plate for cooperating with bolts to fix the two ends of the lower arc block and the upper arc block.

3. A segment bolt radian rapid detection platform according to claim 1, characterized in that: Fixed blocks are arranged at both ends of the lower arc block, and threaded holes are arranged on the fixed blocks for cooperating with bolts to fix the two ends of the lower arc block and the reference bottom plate together.

4. A segment bolt radian rapid detection platform according to claim 3, characterized in that: An upper notch is provided on the fixed block at the left end of the lower arc block.

5. The segment bolt radian rapid detection platform according to claim 1, characterized in that: Fixed blocks are arranged at both ends of the upper arc block, and threaded holes are arranged on the fixed blocks for cooperating with bolts to fix the two ends of the upper arc block and the reference bottom plate together.

6. A segment bolt radian rapid detection platform according to claim 5, characterized in that: A lower notch is provided on the fixed block at the left end of the upper arc block.

7. The segment bolt radian rapid detection platform according to claim 1, characterized in that: Height adjustment seats are arranged at the four corners of the bottom of the reference base plate.

8. A segment bolt radian rapid detection platform according to claim 7, characterized in that: The top end of the height-adjusting seat is provided with an external thread, which is threadedly connected with a threaded hole provided on the reference bottom plate.

9. The segment bolt radian rapid detection platform according to claim 1, characterized in that: The first arc-shaped grooves and the second arc-shaped grooves are grouped in pairs and are respectively used to install paired lower arc blocks and upper arc blocks of different specifications.

10. A method for quickly detecting the curvature of segment bolts based on the detection platform of claim 1, characterized in that: The steps include: Step 1: Assemble the inspection platform and set up an arc-shaped inspection channel: 1) Connect the height adjustment seat to the reference base plate through threads and adjust the height of the reference base plate; 2) Select the paired lower arc block and upper arc block according to the specifications of the segment bolts to be inspected, then insert the arc-shaped convex block of the lower arc block into the first arc-shaped groove of the reference base plate, and fix the two ends of the lower arc block to the reference base plate with bolts; then insert the arc-shaped convex block of the upper arc block into the second arc-shaped groove of the reference base plate, and fix the two ends of the upper arc block to the reference base plate with bolts, so as to obtain an arc-shaped inspection channel composed of the upper arc surface of the upper arc block and the lower arc surface of the lower arc block; Step 2: Push the tail of the segment bolt to be tested into the arc detection channel close to the reference base plate. If the tail of the segment bolt can pass through the arc detection channel smoothly, the arc size of the segment bolt is judged to be qualified; if the tail of the segment bolt cannot pass through the arc detection channel smoothly, the arc size of the segment bolt is judged to be unqualified.

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