CN212254891U

CN212254891U - Anchor cable drawing test device for hydraulic detection

Info

Publication number: CN212254891U
Application number: CN202021040973.5U
Authority: CN
Inventors: 王海洲
Original assignee: Tianjin Xin'an Engineering Testing Co ltd
Current assignee: Tianjin Xin'an Engineering Testing Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-29
Anticipated expiration: 2030-06-08

Abstract

The utility model relates to an anchor rope that hydraulic pressure detected draws test device. The device comprises a manual hydraulic pump, a puller and a moving block; the drawing device comprises an outer sleeve with two open ends and a square cross section, a through window is formed in the top wall of the middle rear part of the outer sleeve, strip-shaped guide holes are formed in the four walls of the front part of the outer sleeve, a drawing oil cylinder is mounted at the middle rear part of the inner cavity of the outer sleeve, and the drawing oil cylinder is connected with a manual hydraulic pump through a hydraulic oil pipe; the moving block comprises a shell with an opening at the front part and a sealed rear part and a square section, threaded holes are formed in the four walls of the shell, adjusting screws with clamping blocks at the inner ends are arranged in the threaded holes, and the adjusting screws are respectively positioned in the strip-shaped guide holes; the front end of a piston rod of the drawing oil cylinder is hinged with the switching block; the clamping device further comprises a central sleeve, and the central sleeve is clamped and fixed among the clamping blocks. The utility model discloses simple structure, simple operation, be convenient for carry out the anchor rope end and connect, promoted test efficiency.

Description

Anchor cable drawing test device for hydraulic detection

Technical Field

The utility model belongs to the technical field of the hydraulic engineering detects, especially, relate to an anchor rope that hydraulic engineering detected draws test device.

Background

In the construction quality detection of a hydraulic project, the pulling test detection of the anchor cable is generally included. The anchor cable is a prestressed steel strand which is fixed on the slope surface through the outer end and passes through the sliding surface of the side slope in a stable rock body with the other end anchored in the sliding surface, so that the anti-sliding resistance is directly generated on the sliding surface, the anti-sliding friction resistance is increased, the structural surface is in a compact state, and the integrity of the rock body of the side slope is improved, thereby fundamentally improving the mechanical property of the rock body, effectively controlling the displacement of the rock body, promoting the stability of the rock body, and achieving the purpose of renovating bedding, sliding slopes, dangerous rocks and dangerous rocks. The anchor cable drawing test detection means that the anti-sliding resistance of the anchor cable is detected by a detection means so as to evaluate the construction quality of the anchor cable in the aspect of anchor cable construction in a hydraulic project. And the anchor cable monomer can be subjected to a drawing test under the condition of no construction so as to determine whether the anchor cable meets the requirement on tensile strength.

The existing anchor cable drawing test is generally carried out through a drawing tester, the drawing tester generally comprises a hydraulic station and a hydraulic pump, and a tensioning and drawing device, wherein the hydraulic station and the hydraulic pump can be replaced by a manual hydraulic pump so as to meet the requirements of field carrying and use. The hydraulic oil is sent into the tensioning and drawing device to stretch the tensioning elements, so that the anchor cable fixed between the tensioning elements is pulled, and whether the anchor cable can bear the pulling force specified in the construction standard is evaluated.

Current anchor rope draws test device complex operation, is not convenient for fix anchor rope end and test device. Because the construction amount of the anchor cable is very big in the job site, the pulling test activity of the anchor cable needs to be frequently carried out, the detection test efficiency is low due to the complexity of the operation of the existing anchor cable pulling test device, and the operation is time-consuming and labor-consuming. Therefore, the structure of the anchor cable pulling test device needs to be optimally designed to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that exists among the known art and provide an anchor rope that simple structure, simple operation, be convenient for carry on the hydraulic pressure that the anchor rope end is connected detects and draw test device, promote the efficiency of testing test, reduce the degree of difficulty of operation.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: an anchor cable drawing test device for hydraulic detection comprises a manual hydraulic pump, a puller and a moving block; the drawing device comprises an outer sleeve with two open ends and a square cross section, a through window is formed in the top wall of the middle rear part of the outer sleeve, strip-shaped guide holes are formed in the four walls of the front part of the outer sleeve, a drawing oil cylinder is mounted at the middle rear part of the inner cavity of the outer sleeve, and the drawing oil cylinder is connected with a manual hydraulic pump through a hydraulic oil pipe; the moving block comprises a shell with an opening at the front part and a sealed rear part and a square section, threaded holes are formed in four walls of the shell, an upper adjusting screw with an upper clamping block at the inner end is arranged in the threaded hole of the top wall, a left adjusting screw with a left clamping block at the inner end is arranged in the threaded hole of the left side wall, a lower adjusting screw with a lower clamping block at the inner end is arranged in the threaded hole of the bottom wall, a right adjusting screw with a right clamping block at the inner end is arranged in the threaded hole of the right side wall, and each adjusting screw is respectively positioned in each strip-shaped guide; the front end of a piston rod of the drawing oil cylinder is hinged with the switching block; the clamping device further comprises a central sleeve, and the central sleeve is clamped and fixed among the clamping blocks.

The utility model has the advantages that: the utility model provides a simple reasonable anchor rope that hydraulic pressure detected of structural design draws test device compares with current anchor rope drawing test device, the utility model provides a device compact structure, portable uses. Through the arrangement of the moving blocks with the clamping blocks and the adjusting screws, the anchor cable testing device is matched with the central sleeve for use, the convenience of connection between the anchor cable end and the testing device is improved, the complex degree of operation is reduced, and the testing operation is simple, convenient and easy to carry out. Meanwhile, after the convenience of the operation is improved, the detection test efficiency of the anchor cable drawing test device is obviously improved, the drawing test can be quickly carried out on a construction project site, the influence on the construction of a hydraulic project is avoided, and the smooth operation of the engineering project is facilitated.

Preferably: the inner cavity of the middle rear part of the outer sleeve is provided with a square end block which is fixedly arranged by a plurality of fastening screws positioned on the top wall and the bottom wall of the outer sleeve; the rear end of the cylinder body of the drawing oil cylinder is positioned in the end block and is hinged with the end block.

Preferably: the switching block comprises a screw rod part and a shaft seat part with a shaft hole, a threaded hole is formed in the middle of the rear wall of the shell, the screw rod part of the switching block is installed in the threaded hole in a threaded mode, and the front end of a piston rod of the drawing oil cylinder is connected with the shaft seat part of the switching block through a rotating shaft.

Preferably: the outer side of each clamping block of the moving block is provided with an insertion hole, and the side wall of the inner end of each adjusting screw is provided with an annular groove; the inner end of the adjusting screw is inserted into the inserting hole of the corresponding clamping block, the pin is screwed into the side part of each clamping block, and the inner end of the pin is positioned in the groove on the adjusting screw.

Preferably: tooth structures are arranged on the inner end faces of the upper clamping block, the left clamping block, the lower clamping block and the right clamping block; the outer wall of the central sleeve is provided with a tooth structure.

Preferably: the outer sleeve of the puller is manufactured by integrally processing a thick-wall metal pipe, the central sleeve is manufactured by processing a thin-wall metal pipe, and the shell of the moving block and the switching block are manufactured by integrally processing metal blocks.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the construction of the puller of FIG. 1;

FIG. 3 is a schematic view of the structure of the moving block of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the traveling block of FIG. 1;

fig. 5 is a schematic view of the matching and connecting structure of the middle drawing oil cylinder and the moving block of the present invention.

In the figure:

1. a manual hydraulic pump; 2. a hydraulic oil pipe; 3. a puller; 3-1, coating; 3-2, a transparent window; 3-3, strip-shaped guide holes; 3-4, drawing the oil cylinder; 3-5, fastening screws; 3-6, an end block; 4. a moving block; 4-1, a shell; 4-2, mounting a clamping block; 4-3, adjusting screws are arranged; 4-4, a left clamping block; 4-5, a left adjusting screw; 4-6, a lower clamping block; 4-7, lower adjusting screws; 4-8, a right clamping block; 4-9, right adjusting screw; 4-10, a central sleeve; 5. and (6) switching the blocks.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments are described in detail.

Referring to fig. 1, the anchor cable pull-out testing device for hydraulic detection of the present invention includes a manual hydraulic pump 1, a puller 3 and a moving block 4. Wherein, manual hydraulic pump 1 plays the dual function of hydraulic pressure station and hydraulic pump, is the complex of hydraulic pressure station and hydraulic pump for drawing ware 3 is manual provides hydraulic power, and drawing ware 3 is used for producing the effect of drawing to the anchor rope, and movable block 4 is used for fixing and bearing the tractive of drawing ware 3 to the tip of anchor rope.

The manual hydraulic pump 1 is a commercially available device and is commercially available. The manual hydraulic pump 1 has a function of converting manual mechanical energy into pressure energy of hydraulic oil, and the working principle is as follows: the cam is rotated by a motor. When the cam pushes the plunger to move upwards, the sealing volume formed by the plunger and the cylinder body is reduced, and oil is extruded out of the sealing volume and is discharged to a required place through the one-way valve. When the cam rotates to the descending part of the curve, the spring forces the plunger downward to form a certain vacuum degree, and oil in the oil tank enters the sealed volume under the action of atmospheric pressure. The cam causes the plunger to rise and fall continuously, the sealing volume is reduced and increased periodically, and the pump continuously sucks oil and discharges oil.

And a pump body of the manual hydraulic pump 1 is provided with a tension display meter for displaying the current hydraulic pressure, and the tension display meter is used for measuring the current traction tension provided for the anchor cable.

Referring to fig. 2, it can be seen that:

the drawing device 3 comprises an outer sleeve 3-1 with two open ends and a square cross section, wherein the top wall of the middle rear part of the outer sleeve 3-1 is provided with a through window 3-2, and the four walls of the front part of the outer sleeve 3-1 are provided with strip-shaped guide holes 3-3. In the embodiment, the outer sleeve 3-1 of the puller 3 is integrally processed by a thick-wall metal pipe, and the through window 3-2 and each strip-shaped guide hole 3-3 are processed by laser cutting. In order to ensure the structural strength, the wall thickness of the adopted thick-wall metal pipe is 5-8 mm.

The middle rear part of the inner cavity of the outer sleeve 3-1 is provided with a drawing oil cylinder 3-4, the drawing oil cylinder 3-4 is connected with a manual hydraulic pump 1 through a hydraulic oil pipe 2, the hydraulic oil pipe 2 penetrates into the inner cavity of the outer sleeve 3-1 through a through window 3-2, and the drawing oil cylinder 3-4 can be operated by operating the manual hydraulic pump 1 to control the telescopic movement of a piston rod of the drawing oil cylinder.

In the embodiment, a square end block 3-6 is arranged in the inner cavity of the middle rear part of the outer sleeve 3-1, and the end block 3-6 is fixedly arranged by adopting a plurality of fastening screws 3-5 positioned on the top wall and the bottom wall of the outer sleeve 3-1; the rear end of the drawing oil cylinder 3-4 is positioned in the end block 3-6 and is hinged.

Referring to fig. 3 and 4, it can be seen that:

the moving block 4 comprises a shell 4-1 with an open front part and a sealed rear part and a square cross section, and the outline of the shell 4-1 is consistent with the outline of the inner cavity of the outer sleeve 3-1, so that the shell 4-1 can move in a translation mode in the inner cavity of the outer sleeve 3-1 along the axial direction.

The four walls of the shell 4-1 are all provided with threaded holes, an upper adjusting screw 4-3 with an upper clamping block 4-2 at the inner end is arranged in the threaded hole of the top wall, a left adjusting screw 4-5 with a left clamping block 4-4 at the inner end is arranged in the threaded hole of the left side wall, a lower adjusting screw 4-7 with a lower clamping block 4-6 at the inner end is arranged in the threaded hole of the bottom wall, a right adjusting screw with a right clamping block 4-8 at the inner end is arranged in the threaded hole of the right side wall, the inward movement and the outward movement of each clamping block can be adjusted through each adjusting screw, when the four clamping blocks are adjusted and moved inward at the same time, a clamping effect is generated, and when the four clamping blocks are adjusted and moved outward at the same time, the clamping effect is removed.

In the embodiment, the outer side of each clamping block of the moving block 4 is provided with an insertion hole, and the side wall of the inner end of each adjusting screw is provided with an annular groove; the inner end of the adjusting screw is inserted into the inserting hole of the corresponding clamping block, the pin is screwed into the side part of each clamping block, and the inner end of the pin is positioned in the groove on the adjusting screw. Thus, when the adjusting screws rotate, the clamping blocks can not rotate, namely, the clamping blocks only have a radial inward movement mode and a radial outward movement mode and cannot rotate.

The adjusting screws are respectively positioned in the strip-shaped guide holes 3-3, so that the moving block 4 cannot integrally slide out from the front end of the outer sleeve 3-1.

Referring to fig. 4 and 5, it can be seen that:

the drawing oil cylinder is characterized by further comprising a switching block 5, wherein the switching block 5 is fixedly installed at the rear portion of the shell 4-1, and the front end of a piston rod of the drawing oil cylinder 3-4 is hinged with the switching block 5.

In this embodiment, the adaptor block 5 includes a screw portion and a shaft seat portion having a shaft hole, a threaded hole is provided in the middle of the rear wall of the housing 4-1, the screw portion of the adaptor block 5 is threadedly mounted in the threaded hole, and the front end of the piston rod of the drawing cylinder 3-4 is connected to the shaft seat portion of the adaptor block 5 through a rotating shaft.

In this embodiment, the housing 4-1 of the moving block 4 and the transfer block 5 are all integrally machined from a metal block. Specifically, the metal block is removed from the numerical control center, and structures such as shaft holes and threaded holes are machined at corresponding positions.

The clamping device also comprises a central sleeve 4-10, and the central sleeve 4-10 is clamped and fixed among the clamping blocks. In order to ensure the clamping and fixing effect, in the embodiment, the inner end surfaces of the upper clamping block 4-2, the left clamping block 4-4, the lower clamping block 4-6 and the right clamping block 4-8 are respectively provided with a tooth structure; the outer wall of the central sleeve 4-10 is provided with a tooth structure. The tooth structures are matched, and the clamping blocks are tightly combined with the central sleeve 4-10 by the jacking action of the adjusting screws on the radial direction of the clamping blocks, so that the clamping blocks cannot be easily separated.

In the embodiment, the central sleeve 4-10 is made of a thin-wall metal tube, and the wall thickness is 3-5 mm. In order to further improve the bonding strength between the central sleeve 4-10 and each clamping block, an annular groove (a part of which is milled away) can be arranged at the middle rear part of the outer wall of the central sleeve 4-10, and correspondingly, the inner end surface of each clamping block can be arranged in a step shape, so that when each clamping block clamps and fixes the central sleeve 4-10, the front inner end surface of each clamping block falls into the groove at the middle rear part of the central sleeve 4-10, and the central sleeve 4-10 is less prone to be separated from each clamping block when tensile force is applied in the axial direction.

The assembling method comprises the following steps:

a transfer block 5 is arranged on the shell of a moving block 4, then the front end of a piston rod of a drawing oil cylinder 3-4 is hinged with a shaft seat part of the transfer block 5 by a rotating shaft, and an end block 3-6 is hinged at the rear part of a cylinder body of the drawing oil cylinder 3-4;

then the combination body is arranged in the outer sleeve 3-1, the whole body is moved backwards, and then the end block 3-6 is fixedly connected with the middle rear part of the outer sleeve 3-1 by adopting a plurality of fastening screws 3-5; then, a hydraulic oil pipe 2 is adopted to connect the manual hydraulic pump 1 with the drawing oil cylinders 3-4;

the piston rod of the drawing oil cylinder 3-4 is operated to extend through the manual hydraulic pump 1 until the shell 4-1 moves to the area where each strip-shaped guide hole 3-3 is located, four adjusting screws are screwed into threaded holes in the four walls of the shell 4-1 through the strip-shaped guide holes 3-3, and the inner ends of the adjusting screws are respectively provided with each clamping block.

The operation mode is as follows:

on the hydraulic construction site, cutting the end of the anchor cable selected for the detection test to a proper length by adopting hydraulic shears and other facilities, and trimming the outer end (namely cutting off the scattered end part); sleeving the central sleeve 4-10 at the end part of the anchor cable, and then welding the anchor cable and the central sleeve 4-10 by adopting a welding facility;

operating the puller 3, enabling the end part of the anchor cable with the central sleeve 4-10 to extend into the space between the clamping blocks of the moving block 4, then adopting tools such as a spanner to carry out rotation adjustment on each adjusting screw, and enabling each clamping block to move towards the center until each clamping block reliably clamps the central sleeve 4-10; the front end of the outer sleeve 3-1 is abutted against the slope surface of a test site (when the slope surface is soft, a metal base plate needs to be laid, and the front end of the outer sleeve 3-1 is prevented from being embedded into the slope surface), the drawing oil cylinder 3-4 is operated through the manual hydraulic pump 1 to enable the piston rod of the drawing oil cylinder to retract and move, at the moment, pulling force required by a drawing test is generated on the anchor cable, the manual hydraulic pump 1 is continuously operated, the current pulling force condition is read through a pulling force display table, a certain time is kept after the pulling force is increased to the test pulling force, if the anchor cable is not pulled off, the test is judged to be qualified;

after the detection test is finished, the manual hydraulic pump 1 is decompressed, then tools such as a wrench and the like are adopted to rotationally adjust each adjusting screw, each clamping block is moved outwards until each clamping block releases the central sleeve 4-10; the test can then be moved to the next location for repeated testing, and the central sleeves 4-10 are no longer removed from the end of the cable under test as a consumable.

Claims

1. The utility model provides a hydraulic testing's anchor rope draws test device which characterized by: comprises a manual hydraulic pump (1), a puller (3) and a moving block (4); the drawing device (3) comprises an outer sleeve (3-1) with two open ends and a square cross section, a through window (3-2) is formed in the top wall of the middle rear part of the outer sleeve (3-1), strip-shaped guide holes (3-3) are formed in the four walls of the front part of the outer sleeve, a drawing oil cylinder (3-4) is installed in the middle rear part of the inner cavity of the outer sleeve (3-1), and the drawing oil cylinder (3-4) is connected with a manual hydraulic pump (1) through a hydraulic oil pipe (2); the moving block (4) comprises a shell (4-1) with an open front part and a closed rear part and a square cross section, threaded holes are formed in the four walls of the shell (4-1), an upper adjusting screw (4-3) with an upper clamping block (4-2) at the inner end is arranged in the threaded hole of the top wall, a left adjusting screw (4-5) with a left clamping block (4-4) at the inner end is arranged in the threaded hole of the left side wall, a lower adjusting screw (4-7) with a lower clamping block (4-6) at the inner end is arranged in the threaded hole of the bottom wall, a right adjusting screw (4-9) with a right clamping block (4-8) at the inner end is arranged in the threaded hole of the right side wall, and the adjusting screws are respectively positioned in the strip-shaped guide holes (; the drawing oil cylinder is characterized by further comprising a transfer block (5), wherein the transfer block (5) is fixedly arranged at the rear part of the shell (4-1), and the front end of a piston rod of the drawing oil cylinder (3-4) is hinged with the transfer block (5); the clamping device also comprises a central sleeve (4-10), and the central sleeve (4-10) is clamped and fixed among the clamping blocks.

2. The anchor cable pulling test device for hydraulic detection as claimed in claim 1, wherein: a square end block (3-6) is arranged in the inner cavity of the middle rear part of the outer sleeve (3-1), and the end block (3-6) is fixedly arranged by adopting a plurality of fastening screws (3-5) positioned on the top wall and the bottom wall of the outer sleeve (3-1); the rear end of the cylinder body of the drawing oil cylinder (3-4) is positioned in the end block (3-6) and is hinged.

3. The anchor cable pulling test device for hydraulic detection as claimed in claim 2, wherein: the transfer block (5) comprises a screw rod part and a shaft seat part with a shaft hole, a threaded hole is formed in the middle of the rear wall of the shell (4-1), the screw rod part of the transfer block (5) is installed in the threaded hole in a threaded mode, and the front end of a piston rod of the drawing oil cylinder (3-4) is connected with the shaft seat part of the transfer block (5) through a rotating shaft.

4. The anchor cable pulling test device for hydraulic detection as claimed in claim 3, wherein: jacks are arranged on the outer sides of the clamping blocks of the moving block (4), and annular grooves are formed in the side walls of the inner ends of the adjusting screws; the inner end of the adjusting screw is inserted into the inserting hole of the corresponding clamping block, the pin is screwed into the side part of each clamping block, and the inner end of the pin is positioned in the groove on the adjusting screw.

5. The anchor cable pulling test device for hydraulic detection as claimed in claim 4, wherein: tooth structures are arranged on the inner end surfaces of the upper clamping block (4-2), the left clamping block (4-4), the lower clamping block (4-6) and the right clamping block (4-8); the outer wall of the central sleeve (4-10) is provided with a tooth structure.

6. The anchor cable pulling test device for hydraulic detection as claimed in claim 5, wherein: the outer sleeve (3-1) of the puller (3) is integrally processed by adopting a thick-wall metal pipe, the central sleeve (4-10) is processed by adopting a thin-wall metal pipe, and the shell (4-1) of the moving block (4) and the transfer block (5) are integrally processed by adopting metal blocks.