CN210953581U - A resin stirring anchoring and pulling test device - Google Patents

Abstract

The utility model discloses a resin stirring anchoring and pulling test device, comprising: a workbench and an anchoring and pulling component arranged on the workbench; the workbench comprises: a base, a worktable and a bracket, and the worktable and the bracket are respectively fixed On the base; the anchoring and pulling assembly includes: the anchoring agent placing tube, the anchor cable, the drilling rig and the anchoring cable tensioning tool, the bottom end of the anchoring agent placing tube is fixed on the bracket and the axis of the anchoring agent placing tube is parallel to the table top of the work table One end of the anchor cable is set in the anchoring agent placement pipe, and the other end of the anchor cable is connected with the power output shaft of the drilling rig. There is also an anchor cable tensioning machine, which can quickly and efficiently realize the resin stirring anchoring of the anchor rod/cable under the condition of manual operation, and can directly conduct the pull-out test after anchoring.

Description

A resin stirring anchoring and pulling test device

technical field

The utility model relates to the technical field of anchoring experimental devices, in particular to a resin stirring anchoring and pulling test device.

Background technique

At present, geotechnical engineering, especially large deformation geotechnical engineering, emphasizes the timely initiative of measures in the supporting process. Prestressed resin bolt/cable is considered to be one of the best supporting measures to realize the above concept. It satisfies the requirements of large and timely anchoring force. As far as the actual construction is concerned, the anchoring force of the resin bolt/cable is most affected by the stirring process. Therefore, it is necessary for the test personnel to conduct the test indoors to obtain the relationship curve between the displacement of the anchor cable and the pull-out load to judge the anchoring force of different anchoring agents. Provide data reference for practical application. In the indoor test, the stirring of the resin anchoring agent is a key part of the test. Under normal circumstances, it is necessary to open a hole in the concrete test block, then put the anchoring agent in the hole, and then use the drilling rig to stir it, which is time-consuming and laborious. The cost is high and the safety is low; or the mechanically integrated anchor pull-out test equipment is directly used, but the mechanical-integrated anchor pull-out test is expensive, and the entire test process is automatically carried out according to the settings, lacking the process of manual operation and stirring , which is not conducive to the experimenter's perception of the experiment process.

Utility model content

The purpose of the utility model is to provide a resin stirring anchoring and pulling test device, which can quickly and efficiently realize the resin stirring and anchoring of the anchor rod/cable under the condition of manual operation, and can directly pull out after the anchoring. The pull test helps the test personnel to perceive the entire test process, so as to facilitate the learning of the anchoring test operation and related knowledge.

The technical scheme that the utility model solves the above-mentioned technical problem is as follows:

A resin stirring anchoring and pulling test device, comprising: a workbench and an anchoring and pulling assembly arranged on the workbench;

The worktable includes: a base, a worktable and a bracket, and the worktable and the bracket are respectively fixed on the base;

The anchoring and pulling assembly includes: anchoring agent placing pipe, anchor cable, drilling rig and anchor cable tensioning equipment, the bottom end of the anchoring agent placing pipe is fixed on the bracket and the axis of the anchoring agent placing pipe is parallel to the table top of the work table, and one end of the anchoring cable is Set in the anchoring agent placement pipe, the other end of the anchor cable is connected with the power output shaft of the drilling rig, a moving device along the axis of the anchoring cable is arranged between the drilling rig and the work table, and an anchor is also provided between the anchoring agent placing pipe and the drilling rig. Cable tensioning equipment.

The device is provided with a fixed base, a work table and a bracket. The operator stands on the base during operation to better perceive the stability of the stirring process. The bracket is located at one end of the workbench and is used to fix the anchoring agent placement tube; The anchoring agent placing pipe is used to hold the anchoring agent. One end of the anchor cable is set in the anchoring agent placing pipe, and the other end is provided with a drilling rig, and the drilling rig is set on the mobile device, so that the anchoring cable can be driven by the rotation of the drilling rig. The resin in the placement tube is stirred and anchored, and the anchor cable is extended into the anchoring agent placement tube while rotating.

Further, in a preferred embodiment of the present invention, the moving device includes a moving bracket, a support seat, a ball screw and a power screw, the support seat is arranged on the work table, and the two ends of the ball screw are arranged on the support seat. The moving support is arranged on the nut of the ball screw, and the power screw is arranged on the outer end of the ball screw through the coupling.

The mobile device is mainly used to drive the drilling rig to move along the axial direction of the anchor cable. The mobile support is used to place the drilling rig. The mobile support is arranged on the nut of the ball screw. When the power screw is rotated, the power screw drives the ball screw to rotate. Therefore, the nut on the ball screw is moved along the ball screw, that is, the moving support moves along the axis of the ball screw, and the anchor cable is further extended or the anchoring agent placement tube is pulled out.

Further, in a preferred embodiment of the present utility model, the movable support is provided with a placement slot, two sides of the placement slot are provided with mounting plates, the drilling machine is placed in the placement slot, and the drilling machine is fixed on the mounting plate.

In this solution, the two handles of the drilling rig are fixed on the mounting plates on both sides by U-bolts.

Further, in a preferred embodiment of the present utility model, the outer wall of the hydraulic cylinder is provided with a magnetic seat, the magnetic seat is provided with a connecting rod, the connecting rod is provided with a dial indicator, and the pointer of the dial indicator interferes with the anchor cable. On the power output shaft of the tensioning tool and along the axis of the anchor cable.

The dial indicator is used to display the pulling displacement, and the anchor cable tensioning machine is provided with a load display table, so that the load-displacement curve of the entire pulling process can be drawn by recording the pulling displacement and pulling load during the pulling process. The seat is fixed on the outer wall of the hydraulic cylinder by its own magnetic force. There is a connecting rod on the magnetic seat. The connecting rod supports the dial indicator. By adjusting the form and angle of the connecting rod, the setting method and position of the dial indicator can meet the test requirements. Require.

Further, in a preferred embodiment of the present invention, a first support block is arranged between the anchoring agent placing tube and the workbench.

The structure of the first support block is not specifically limited. In this solution, the first support block adopts table clamps, and the table clamps clamp the anchoring agent placement tube to support the anchoring agent placement tube.

Further, in a preferred embodiment of the present utility model, a plurality of supporting devices are also provided between the anchor cable and the work table, and the supporting devices include a sleeve slidably sleeved on the anchor cable and a fixed set on the work table. The second support block, the sleeve is fixedly arranged on the second support block.

Due to the relatively large length-diameter ratio of the anchor cable, in order to ensure the movement direction of the anchor cable during the stirring, anchoring and drawing process, there are also multiple second support blocks in the middle of the anchor cable. The structure and number of the second support blocks are not specified. Specifically, in this solution, a second support block is provided, and table clamps are also used for the second support block. The anchor cable is set on the second support block through the sleeve, so that when the anchor cable plays a supporting role, the anchor cable can also be supported. It does not affect the axial movement of the anchor cable. In this scheme, the casing is made of the same steel pipe as the anchoring agent placement pipe.

The utility model has the following beneficial effects:

The utility model provides a laboratory-operated resin stirring anchoring and pulling test device, the device is provided with an integral workbench, which is convenient for testers to practice and perceive the resin stirring, anchoring and pulling process; the device uses an anchoring agent Place the tube instead of the conventional concrete test block as the anchoring matrix, and the manufacturing process is simple. By setting an axially movable drilling rig at one end of the anchor cable, the requirements of the stirring anchoring experiment can be realized. The pull-out test requires that the stirring anchor and the pull-out device do not interfere with each other. After the anchoring, the pull-out test can be carried out quickly, which reduces the corresponding installation and disassembly procedures. The test device has a simple structure, convenient operation and low price, and is suitable for laboratory teaching. promotion.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the front view of the utility model;

Figure 3 is a side view of the utility model.

Among them: 1-base; 2-work table; 3-support; 4-anchoring agent placement pipe; 41-first support block; 42-casing; 43-second support block; 5-anchor cable; 6-drilling rig; 7-Anchor cable tensioning equipment; 71-Hydraulic cylinder; 711-Magnetic seat; 712-Connecting rod; 713-Dial indicator; 72-Hydraulic pump; 721-Load display table; ; 811 - placement slot; 812 - mounting plate; 82 - support seat; 83 - ball screw; 84 - power screw.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings, and the examples are only used to explain the present invention, and are not intended to limit the scope of the present invention.

Example

1-3, a resin stirring anchoring and pulling test device, including: a workbench and an anchoring and pulling assembly set on the workbench;

The working table includes: a base 1, a working table 2 and a bracket 3, the working table 2 and the bracket 3 are respectively fixed on the base 1, and the bracket 3 is arranged at one end of the working table 2 and the top is higher than the desktop of the working table 2;

The anchoring and pulling assembly includes: an anchoring agent placing pipe 4, an anchor cable 5, a drilling machine 6 and an anchor cable tensioning tool 7, the bottom end of the anchoring agent placing pipe 4 is fixed on the bracket 3, and the axis of the anchoring agent placing pipe 4 is connected with the work table. The table tops of 2 are parallel, a first support block 41 is provided between the anchoring agent placing tube 4 and the work table 2, and a plurality of supporting devices are also provided between the anchor cable 5 and the work table 42. The sleeve 42 on 5 and the second support block 43 fixed on the work table 42, the sleeve 42 is fixed on the second support block 43, one end of the anchor cable 5 is set in the anchoring agent placement tube 4, the anchor cable 5 The other end is connected with the power output shaft of the drilling rig 6. A moving device 8 along the axis of the anchor cable 5 is arranged between the drilling rig 6 and the work table 2. The moving device 8 includes a moving support 81, a support base 82, and a ball screw 83. and the power screw 84, the support base 82 is set on the work table 2, the two ends of the ball screw 83 are set on the support base 82 and the ball screw 83 extends along the axial direction of the anchor cable 5, and the moving support 81 is set at On the nut of the ball screw 83, the power screw 84 is arranged on the outer end of the ball screw 83 through the coupling. In this embodiment, the stroke of the ball screw 83 is 100mm, and the moving support 81 is provided with a placement slot 811 , mounting plates 812 are provided on both sides of the placement groove 811 , the drilling machine 6 is placed in the placement groove 811 , and the drilling machine 6 is fixed on the mounting plate 812 .

An anchor cable tensioning tool 7 is also provided between the anchoring agent placement pipe 4 and the drilling rig 6. In this embodiment, the anchor cable tensioning tool 7 adopts the MS19-180/55 mine anchor cable tensioning tool 7, and the anchor cable 5 The diameter is 18.9mm, and the anchor cable tensioning tool 7 includes a hydraulic cylinder 71 and a hydraulic pump 72 that drives the hydraulic cylinder 71. The hydraulic pump 72 is provided with a load display meter 721, and the outer wall of the hydraulic cylinder 71 is provided with a magnetic base 711, on the magnetic base 711 A connecting rod 712 is provided, and a dial indicator 713 is arranged on the connecting rod 712. The pointer of the dial indicator 713 is in contact with the power output shaft of the anchor cable tensioning device 7 and along the axis direction of the anchor cable 5. Fig. 2 shows clearly , the hydraulic pump 72 is vertically moved from the table top of the work table 2 to the base 1 .

Resin stirring anchoring and drawing process:

The anchoring agent is placed in the anchoring agent placement pipe 4, and one end of the anchoring cable 5 passes through the casing 42 and the hydraulic cylinder 71 until it collides with the anchoring agent; the drilling rig 6 is turned on, and the drilling rig 6 rotates at a high speed to drive the anchoring cable 5 to stir the anchoring agent, and manually The rotating power screw 84 pushes the moving support 81 to move on the support base 82, thereby slowly pushing the drilling rig 6 until the anchor cable 5 is placed at the bottom of the pipe 4; , and then wait until the required time for anchoring, and the anchoring process is completed.

After the anchoring is completed, the hydraulic cylinder 71 can be directly pressurized by the hydraulic pump 72, the anchor cable 5 is held tightly, the hydraulic oil is squeezed manually, and the anchor cable 5 is pulled outward; Loading interval: Read the value of the loading load on the display table 721. At the same time, read the displacement data corresponding to the dial indicator 713, record the corresponding data, and finally obtain the load-displacement curve of the entire pulling process, and obtain the anchor cable pulling force. and adhesion.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (6)

1. The utility model provides a resin stirring anchor and pull-out test device which characterized in that includes: the anchor drawing assembly comprises a workbench and an anchor drawing assembly arranged on the workbench;

the work bench includes: the table comprises a base (1), a working table (2) and a support (3), wherein the working table (2) and the support (3) are respectively and fixedly arranged on the base (1);

the anchor puller assembly includes: pipe (4), anchor rope (5), rig (6) and anchor rope stretch-draw machines (7) are placed to the anchor agent, the bottom mounting that pipe (4) were placed to the anchor agent is in on support (3) and the anchor agent place the axis of pipe (4) with the desktop of table (2) is parallel, anchor rope (5) one end sets up in the pipe (4) is placed to the anchor agent, the other end of anchor rope (5) with the power take off hub connection of rig (6), rig (6) with be equipped with the edge between table (2) mobile device (8) of anchor rope (5) axis direction, the anchor agent place pipe (4) with still be equipped with anchor rope stretch-draw machines (7) between rig (6).

2. The resin stirring anchoring and pulling test device according to claim 1, wherein the moving device (8) comprises a moving support (81), a support base (82), a ball screw (83), and a power screw (84), the support base (82) is disposed on the table (2), both ends of the ball screw (83) are disposed on the support base (82) and the ball screw (83) extends in the axial direction of the anchor cable (5), the moving support (81) is disposed on a nut of the ball screw (83), and the power screw (84) is disposed at an outer end of the ball screw (83) through a coupling.

3. The resin stirring anchoring and pulling test device according to claim 2, wherein a placement groove (811) is provided on the movable bracket (81), mounting plates (812) are provided on both sides of the placement groove (811), the drilling machine (6) is placed in the placement groove (811), and the drilling machine (6) is fixed to the mounting plates (812).

4. The resin stirring anchoring and drawing test device according to any one of claims 1 to 3, wherein a magnetic seat (711) is arranged on the outer wall of a hydraulic oil cylinder (71) of the anchor cable tensioning tool (7), a connecting rod (712) is arranged on the magnetic seat (711), a dial indicator (713) is arranged on the connecting rod (712), and a pointer of the dial indicator (713) abuts against a power output shaft of the anchor cable (5) tensioning tool (7) and is along the axial direction of the anchor cable (5).

5. The resin stirring anchoring and pulling test device according to claim 4, wherein a first support block (41) is provided between the anchoring agent placing tube (4) and the work table (2).

6. The resin stirring anchoring and pulling test device according to claim 5, wherein a plurality of supporting devices are further arranged between the anchor cable (5) and the work table (2), the supporting devices comprise a sleeve (42) slidably sleeved on the anchor cable (5) and a second supporting block (43) fixedly arranged on the work table (2), and the sleeve (42) is fixedly arranged on the second supporting block (43).

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