Resin anchor rod anchoring force testing device

Abstract

The utility model discloses a resin anchor rod anchoring force testing device which comprises a base, a test tube arranged on the base and a driving assembly arranged on the base, and the driving assembly is used for driving a resin anchor rod to be inserted into the bottom of the test tube and extruding resin to be anchored with the test tube; the test tube is used for simulating an anchor hole. The anchoring condition of the resin anchor rod under the actual working condition can be simulated, and the accuracy rate is high; meanwhile, the device serves as special equipment for detecting the anchoring force of the anchor rod, and fills the blank of detecting the anchoring force of the resin anchor rod in China.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rod detection, in particular to a resin anchor rod anchoring force testing device. Background Art

[0002] Anchoring force is the most important performance parameter of anchor support. Its size directly affects the stability of the support. By testing the anchoring force, the construction quality of the anchor and the stability of the support can be inspected and judged.

[0003] Testing anchor bolt anchoring strength must be conducted under conditions that simulate actual field anchoring. Current domestic methods for testing anchor bolt anchoring strength have long plagued manufacturers, making testing anchor bolt anchoring strength a challenging task for manufacturers during factory inspections. To address the challenge of testing anchor bolt anchoring strength under the actual conditions of field anchor bolt support, an anchor bolt anchoring strength testing device is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a resin anchor rod anchoring force testing device, which can simulate the anchoring conditions of the resin anchor rod under actual working conditions with high accuracy; at the same time, this device serves as a special equipment for detecting the anchoring force of the anchor rod, filling the gap in the domestic detection of the anchoring force of the resin anchor rod.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A resin anchor rod anchoring force testing device comprises a base, a test tube arranged on the base, and a driving assembly arranged on the base, wherein the driving assembly is used to drive the resin anchor rod to be inserted into the bottom of the test tube and extrude resin to anchor the resin to the test tube;

[0007] The test tube is used to simulate an anchor hole.

[0008] Furthermore, the base is an L-shaped structure, and the first end of the test tube is detachably connected to the vertical section of the base.

[0009] Furthermore, the first end of the test tube is detachably connected to the base via a clamp.

[0010] Furthermore, a dovetail groove or a T-shaped groove is provided on the vertical section of the base, and the clamp is adapted to the dovetail groove or the T-shaped groove.

[0011] Furthermore, a bracket is provided on the base, and the bracket is arranged in the middle of the test tube.

[0012] Furthermore, the driving assembly includes a slide rail, a slide frame slidably arranged on the slide rail, and a rotation driving part arranged on the slide frame, the slide rail is arranged on the base, the rotation driving part is connected to a connecting sleeve, and the connecting sleeve is used to connect the resin anchor rod;

[0013] A pulling oil cylinder is provided at one end of the connecting sleeve away from the resin anchor rod.

[0014] Furthermore, the rotation driving unit is a hydraulic motor.

[0015] Furthermore, grooves are provided on the bottom and inner wall of the test tube.

[0016] Furthermore, the clamp is externally threadedly connected to the first end of the test tube.

[0017] The beneficial effects of the utility model are:

[0018] The utility model can simulate the anchoring situation of the resin anchor rod under actual working conditions with high accuracy; at the same time, as a special equipment for detecting the anchoring force of the anchor rod, the utility model fills the gap in the domestic detection of the anchoring force of the resin anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a resin anchor bolt anchoring force testing device in an embodiment of the present utility model;

[0020] In the figure, 1. base; 2. test tube; 3. resin anchor rod; 4. clamp; 5. bracket; 6. slide rail; 7. slide frame; 8. connecting sleeve; 9. pulling cylinder; 10. rotation drive unit. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0022] See Figure 1 , the utility model provides a technical solution: Example

[0023] like Figure 1 As shown, a resin anchor rod anchoring force testing device includes a base 1, a test tube 2 arranged on the base 1 and a driving assembly arranged on the base 1, wherein the driving assembly is used to drive the resin anchor rod 3 to be inserted into the bottom of the test tube 2 and extrude resin to anchor the resin to the test tube 2;

[0024] The test tube 2 is used to simulate an anchor hole.

[0025] The base 1 is an L-shaped structure, and the first end of the test tube 2 is detachably connected to the vertical section of the base 1 .

[0026] The first end of the test tube 2 is detachably connected to the base 1 via a clamp 4 .

[0027] A dovetail groove or a T-shaped groove is provided on the vertical section of the base 1 , and the clamp 4 is adapted to the dovetail groove or the T-shaped groove.

[0028] A bracket 5 is provided on the base 1 and is arranged in the middle of the test tube 2. The bracket 5 is used to lift the test tube 2 and assist in concentricity when the anchor is screwed in.

[0029] The driving assembly includes a slide rail 6, a sliding frame 7 slidingly arranged on the slide rail 6, and a rotating driving unit arranged on the sliding frame 7. The slide rail 6 is arranged on the base 1. The rotating driving unit 10 is connected to a connecting sleeve 8, and the connecting sleeve 8 is used to connect the resin anchor rod 3; wherein the sliding frame 7 can be but is not limited to a combination of an electric slider and a bracket, the electric slider is adapted to the slide rail 6, and the bracket is arranged on the electric slider.

[0030] The end of the connecting sleeve 8 away from the resin anchor rod 3 is provided with a pulling oil cylinder 9. The pulling oil cylinder 9 is used to apply a pulling force after the resin is extruded and anchored.

[0031] The rotary drive unit is a hydraulic motor which is used to drive the anchor rod to rotate through the connecting sleeve and cooperate with the slide rail 6 to realize the screwing of the anchor rod.

[0032] The bottom and inner wall of the test tube 2 are provided with grooves, which are used to increase friction.

[0033] The clamp 4 is externally threadedly connected to the first end of the test tube 2 .

[0034] The resin anchor rod 3 may be but is not limited to the resin anchor rod 3 disclosed in publication number CN202310470538.8.

[0035] Working principle: 1. The clamp 4 is used repeatedly, refer to the tensile testing machine.

[0036] 2. Bracket 5 is used to assist concentricity during rotation and needs to be loosened when pulling.

[0037] 3. Test tube 2 (special steel tube) is a custom part. The inner hole and end face need to be processed with grooves to increase friction. The experiment is for one-time use.

[0038] 4. The connecting sleeve 8 is connected to the external thread of the anchor rod to realize the rotation and pulling of the anchor rod.

[0039] 5. The connecting sleeve 8, hydraulic motor and pulling cylinder 9 are integrated into a whole and are mounted on the bottom slide rail 6, which can realize forward and backward movement while rotating.

[0040] 6. The hydraulic motor needs to be able to realize forward and reverse functions, with a speed of >300r / min and a torque of >300N.m.

[0041] 7. Experimental steps: 1) Fix the special test tube 2 on the equipment and secure it with the clamp 4 and bracket 5.

[0042] 2) Place the resin anchor and anchor rod into the special test tube 2.

[0043] 3) Connect the connecting sleeve 8 to the anchor thread.

[0044] 4) Rotate the anchor rod to the left while moving forward. Push it to the bottom to squeeze out the resin roll inside the anchor rod. Continue stirring for 10 seconds to mix the resin evenly. Release bracket 5 and start timing (to ensure that the resin has sufficient time to solidify).

[0045] After 1 minute, pull to 60KN and maintain it. When the total time is 5 minutes and the pulling reaches 200KN, it is considered qualified.

[0046] 5) Rotate the connecting sleeve 8 to the right to separate it from the anchor rod, remove the special test tube 2 and the anchor rod, and complete the experiment.

[0047] 8. A computer is required to input and control the entire rotation, pushing, waiting, drawing, etc., as well as to display and save the drawing test curve and results.

[0048] The utility model can simulate the anchoring situation of the resin anchor rod under actual working conditions with high accuracy; at the same time, as a special equipment for detecting the anchoring force of the anchor rod, the utility model fills the gap in the domestic detection of the anchoring force of the resin anchor rod.

[0049] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A resin anchor bolt anchoring force testing device, characterized in that: It includes a base, a test tube arranged on the base, and a driving assembly arranged on the base, wherein the driving assembly is used to drive the resin anchor rod to be inserted into the bottom of the test tube and extrude the resin to anchor the test tube; The test tube is used to simulate an anchor hole.

2. The resin anchor bolt anchoring force testing device according to claim 1, characterized in that: The base is an L-shaped structure, and the first end of the test tube is detachably connected to the vertical section of the base.

3. The resin anchor bolt anchoring force testing device according to claim 2, characterized in that: The first end of the test tube is detachably connected to the base through a clamp.

4. The resin anchor bolt anchoring force testing device according to claim 3, characterized in that: A dovetail groove or a T-shaped groove is provided on the vertical section of the base, and the clamp is adapted to the dovetail groove or the T-shaped groove.

5. The resin anchor bolt anchoring force testing device according to claim 2, characterized in that: A bracket is provided on the base, and the bracket is arranged in the middle of the test tube.

6. The resin anchor bolt anchoring force testing device according to claim 1, characterized in that: The driving assembly includes a slide rail, a slide frame slidably arranged on the slide rail, and a rotation driving part arranged on the slide frame. The slide rail is arranged on a base. The rotation driving part is connected to a connecting sleeve, and the connecting sleeve is used to connect to the resin anchor rod. A pulling oil cylinder is provided at one end of the connecting sleeve away from the resin anchor rod.

7. The resin anchor bolt anchoring force testing device according to claim 6, characterized in that: The rotation driving unit is a hydraulic motor.

8. The resin anchor bolt anchoring force testing device according to claim 1, characterized in that: The bottom and inner wall of the test tube are provided with grooves.

9. The resin anchor bolt anchoring force testing device according to claim 3, characterized in that: The clamp is externally threadedly connected to the first end of the test tube.

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