CN212180474U - Anchor rod tension testing device - Google Patents

Abstract

The utility model provides an anchor rod tension test device, includes the tensiometer, the tensiometer includes the pneumatic cylinder and the hydraulic jack that communicate each other to pneumatic cylinder and hydraulic jack communicate through the hand pump mutually, and the hand pump rotates and is connected with the swinging arms, the device still including be used for to the pushing mechanism of thrust is applyed to the swinging arms, pushing mechanism includes bottom plate, last spacing ring and lower spacing ring, wherein the bottom plate with the connection can be dismantled to the pneumatic cylinder, go up the inboard threaded connection of spacing ring and have at least a set of guide bar, the quantity of a set of guide bar is two, guide bar and lower spacing ring threaded connection and with bottom plate fixed connection, the swinging arms pass and lie in between spacing ring and the lower spacing ring from between two guide bars of same group. The utility model provides an anchor rod tension test device can apply stable pulling force to the anchor rod, promotes the accuracy of test result.

Description

Anchor rod tension testing device

Technical Field

The utility model relates to an anchor rod test technical field, specific anchor rod tension test device that says so.

Background

The anchor rod is the most basic component of roadway support in the contemporary underground mining mine, and binds the surrounding rocks of the roadway together to make the surrounding rocks support themselves. The anchor rod tension meter is a detection tool for measuring the anchoring force of the anchor rod, and has an important effect on anchor rod supporting engineering, research on various anchor rods and engineering quality inspection.

Among the prior art, the widely used stock tensiometer all adopts the structural style and the principle of "an stock tensiometer" that chinese patent CN201310174460.1 discloses, and this stock tensiometer sets up in mining tunnel, the stock tensiometer includes jack and oil pump, the jack is equipped with the base, and the base is equipped with the nut, the base passes through the nut to be fixed on the tunnel wall to correspond with the stock position in the tunnel, the stock tensiometer is equipped with high pressure fuel pipe, jack and oil pump are equipped with oil pipe joint respectively, oil pipe joint of oil pump is equipped with the manometer, the oil pump is equipped with the handle. The anchor rod tension meter has good portability and convenient use, but has the defects. The adjustment process of the manual pump is mainly realized by a control handle of a tester, the slight shaking of the hand of the tester can cause the change of the output tension of the jack, the reading of the pressure gauge is continuously jumped, the pressure gauge can only be estimated according to the test requirement, and the accuracy of the test result is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough among the prior art, the utility model provides an anchor rod tension test device can apply stable pulling force to the anchor rod, promotes the accuracy of test result.

In order to achieve the above object, the utility model discloses a concrete scheme does: the utility model provides an anchor rod tension test device, includes the tensiometer, the tensiometer includes the pneumatic cylinder and the hydraulic jack that communicate each other to pneumatic cylinder and hydraulic jack communicate through the hand pump mutually, and the hand pump rotates and is connected with the swinging arms, the device still including be used for to the pushing mechanism of thrust is applyed to the swinging arms, pushing mechanism includes bottom plate, last spacing ring and lower spacing ring, wherein the bottom plate with the connection can be dismantled to the pneumatic cylinder, go up the inboard threaded connection of spacing ring and have at least a set of guide bar, the quantity of a set of guide bar is two, guide bar and lower spacing ring threaded connection and with bottom plate fixed connection, the swinging arms pass and lie in between spacing ring and the lower spacing ring from between two guide bars of same group.

As the further optimization of the anchor rod tension testing device: the bottom plate is fixedly connected with two side positioning plates and an end positioning plate, wherein the two side positioning plates are arranged oppositely, the hydraulic cylinder is positioned between the two side positioning plates, one end of the hydraulic cylinder is abutted to the end positioning plate, a screw rod is arranged on the side positioning plate in a penetrating mode, one end of the screw rod is rotatably connected with a top plate, the top plate is positioned between the two side positioning plates, and the other end of the screw rod is fixedly connected with a side positioning knob.

As the further optimization of the anchor rod tension testing device: one side of the top plate, facing the lateral positioning plate, is fixedly connected with a plurality of guide rods parallel to the screw rods, the guide rods penetrate through the lateral positioning plate, and one side of the top plate, facing away from the lateral positioning plate, is fixedly connected with a soft gasket.

As the further optimization of the anchor rod tension testing device: the top plate is internally provided with a cavity, a circular linkage disc is rotatably arranged in the cavity, the linkage disc is coaxially and fixedly connected with a connecting rod, the area of the linkage disc is larger than the sectional area of the connecting rod, and the connecting rod extends out of the top plate and then is coaxially and fixedly connected with the screw rod.

As the further optimization of the anchor rod tension testing device: the bottom plate is fixedly connected with two groups of guide rods, and all the guide rods are uniformly distributed along the circumferential direction of the upper limiting ring.

As the further optimization of the anchor rod tension testing device: the bottom plate fixedly connected with stroke indication marker post, the stroke indication marker post is located go up the spacing ring with the inboard of spacing ring down, is provided with a plurality of scale marks along length direction evenly distributed on the stroke indication marker post.

As the further optimization of the anchor rod tension testing device: go up the outside of spacing ring and rotate and be connected with a plurality of dwangs along circumferencial direction evenly distributed, the pole is buckled to the one end fixedly connected with iron that the spacing ring was kept away from to the dwang, iron buckles the pole and towards the inboard of spacing ring on when the axis of dwang and last spacing ring is parallel, set up a plurality of breachs along circumferencial direction evenly distributed on the outer wall of spacing ring down, the width of breach equals the diameter that the iron buckled the pole, inlays in the breach and is equipped with the permanent magnet.

As the further optimization of the anchor rod tension testing device: the dwang is close to go up the one end of spacing ring and rotate and be connected with the installation axle, installation axle both ends respectively fixedly connected with mounting panel, mounting panel and last spacing ring fixed connection.

As the further optimization of the anchor rod tension testing device: the outer side wall of the upper limiting ring is fixedly connected with a plurality of rotary handles extending along the radial direction, and all the rotary handles are uniformly distributed along the circumferential direction.

Has the advantages that: the utility model discloses can provide stable pulling force to the stock, avoid causing the pulling force unstability because the tester application of force is unstable to promote the accuracy of test result, and the utility model discloses can directly combine together with current stock tensiometer, need not additionally to purchase new stock tensiometer, thereby reduce use cost.

Drawings

FIG. 1 is a schematic structural view of a tension meter;

fig. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the connection of the side positioning plate and the screw;

FIG. 4 is a schematic view of the relative positions of the guide lever and the swing lever;

fig. 5 is a schematic view of the connection of the upper and lower retainer rings.

Description of the drawings: 1-swinging rod, 2-hydraulic cylinder, 3-manual pump, 4-tension indicator, 5-hydraulic jack, 6-bottom plate, 7-cushion block, 8-stroke indicator rod, 9-lower limit ring, 10-end positioning plate, 11-side positioning plate, 12-side positioning knob, 13-anti-skid projection, 14-rotating handle, 15-upper limit ring, 16-guide rod, 17-graduation line, 18-guide rod, 19-top plate, 20-soft gasket, 21-linkage disk, 22-connecting rod, 23-screw rod, 24-permanent magnet, 25-bending iron rod, 26-notch, 27-rotating rod, 28-mounting plate and 29-mounting shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, an anchor rod tension testing device comprises a tension meter, wherein the tension meter comprises a hydraulic cylinder 2 and a hydraulic jack 5 which are communicated with each other, the hydraulic cylinder 2 and the hydraulic jack 5 are communicated with each other through a manual pump 3, the manual pump 3 is rotatably connected with a swing rod 1, the device further comprises a pushing mechanism for applying pushing force to the swing rod 1, the pushing mechanism comprises a bottom plate 6, an upper limiting ring 15 and a lower limiting ring 9, the bottom plate 6 is detachably connected with the hydraulic cylinder 2, at least one group of guide rods 16 is in threaded connection with the inner side of the upper limiting ring 15, the number of the group of guide rods 16 is two, the guide rods 16 are in threaded connection with the lower limiting ring 9 and are fixedly connected with the bottom plate 6, and the swing rod 1 penetrates between the two guide rods 16 in the same group and is located between the upper limiting ring 15 and the lower limiting.

It should be noted that, in the present invention, the tension meter uses a conventional anchor tension meter, for example, an LDZ-200 type anchor tension meter, and the tension meter includes a tension indicator 4 communicated with the hand pump 3 in addition to the oscillating rod 1, the hydraulic cylinder 2, the hand pump 3 and the hydraulic jack 5. In the initial state, the lower limit ring 9 is connected to the guide rod 16. When the device is used, firstly, the hydraulic jack 5 is connected with an anchor rod to be tested, then the hydraulic cylinder 2 is connected with the bottom plate 6, the bottom plate 6 is placed on the ground after the connection is finished so as to facilitate subsequent operation, then the swinging rod 1 is rotated to enable the swinging rod 1 to penetrate through two guide rods 16 in the same group, then the upper limiting ring 15 is connected with the guide rods 16, the swinging rod 1 is positioned between the upper limiting ring 15 and the lower limiting ring 9, then the upper limiting ring 15 is rotated, because the upper limiting ring 15 is in threaded connection with the guide rods 16, the upper limiting ring 15 can move towards the lower limiting ring 9 in the rotating process and push the swinging rod 1 to rotate, the manual pressurizing process of the manual pump 3 is completed, if the upper limiting ring 15 stops rotating at any position, the position of the upper limiting ring 15 is fixed, so that stable pressure is provided for the swinging rod 1, and the swinging rod 1 is prevented from swinging in a small amplitude, make hydraulic jack 5 can export stable pulling force, and then can test the stock accurately, avoid because the tester application of force is unstable and cause the testing result precision to descend. Lower limit ring 9 can cooperate with last limit ring 15, fully fixes the position of swinging arms 1 to make hydraulic jack 5 can keep the pulling force size of output not changing in a certain time, thereby further promote the accuracy of test result. In order to avoid result accuracy reduction caused by the shaking of the tension meter in the test process, a tester can step on the bottom plate 6 by feet, and the position and the posture of the tension meter are fully fixed.

The detachable connection mode between the bottom plate 6 and the hydraulic cylinder 2 is as follows: two lateral part locating plates 11 and an end locating plate 10 of bottom plate 6 fixedly connected with, wherein two lateral part locating plates 11 set up relatively, and pneumatic cylinder 2 is located between two lateral part locating plates 11 to the one end of pneumatic cylinder 2 supports on end locating plate 10, wears to be equipped with screw rod 23 on the lateral part locating plate 11, and the one end of screw rod 23 rotates and is connected with roof 19, and roof 19 is located between two lateral part locating plates 11, the other one end fixedly connected with lateral part location knob 12 of screw rod 23. When the bottom plate 6 is connected with the hydraulic cylinder 2, the hydraulic cylinder 2 is firstly placed between the two side positioning plates 11, the hydraulic cylinder 2 is enabled to be tightly attached to the end positioning plate 10 and the bottom plate 6, then the side positioning knob 12 is rotated, the screw rod 23 is driven to rotate by the side positioning knob 12, the screw rod 23 moves between the two side positioning plates 11, the screw rod 23 pushes the top plate 19 to move synchronously in the moving process, and the connection can be completed until the two top plates 19 clamp the hydraulic cylinder 2. This connected mode's easy operation to need not change the structure of pneumatic cylinder 2 itself, the commonality is stronger, can be used for the stock tensiometer of different models. The utility model discloses in other embodiments, also can adopt other can dismantle connected mode, for example at a plurality of connection pieces of lateral part welding of pneumatic cylinder 2, the connection piece is connected through the bolt with bottom plate 6, and such mode connection stability is stronger, but need reform transform pneumatic cylinder 2, and the stock tensiometer of different models need set up corresponding bottom plate 6, manages comparatively loaded down with trivial details.

In order to facilitate the rotation of the side position knob 12, the side position knob 12 is integrally connected with a plurality of anti-slip protrusions 13 uniformly distributed in the circumferential direction.

Although the top plate 19 is rotatably connected with the screw 23 to prevent the screw 23 from driving the top plate 19 to rotate greatly, so as to prevent the top plate 19 from driving the hydraulic cylinder 2 to tilt, the top plate 19 cannot be completely prevented from rotating, so that a plurality of guide rods 18 parallel to the screw 23 are fixedly connected to one side of the top plate 19 facing the side positioning plate 11, and the guide rods 18 penetrate through the side positioning plate 11, and a soft gasket 20 is fixedly connected to one side of the top plate 19 facing away from the side positioning plate 11. Utilize guide bar 18 can control the direction of roof 19, avoid screw 23 to drive roof 19 completely and rotate, soft gasket 20 can improve the frictional force between roof 19 and the pneumatic cylinder 2, and then promotes the joint strength between bottom plate 6 and the pneumatic cylinder 2, and soft gasket 20 can adopt rubber or silica gel material. Obviously, the side positioning plate 11 needs to be provided with a through hole corresponding to the guiding rod 18 and a screw hole corresponding to the screw 23, and the through hole can be communicated with the screw hole or separated from the screw hole, for example, in fig. 3, the screw hole and the through hole are communicated with each other and can be selected according to actual needs.

The specific rotary connection mode of the top plate 19 and the screw 23 is as follows: the inside cavity of having seted up of roof 19 rotates in the cavity and is provided with circular shape linkage disk 21, and linkage disk 21 is coaxial to be linked firmly connecting rod 22 to linkage disk 21's area is greater than connecting rod 22's sectional area, and connecting rod 22 stretches out behind the roof 19 and links firmly with screw 23 is coaxial. The linkage disc 21 can rotate in the cavity, thereby avoiding the top plate 19 from rotating synchronously, and simultaneously pushing or pulling the top plate 19. To realize this structure, the top plate 19 needs to be formed by laminating two substrates. In other embodiments of the present invention, other rotation connection modes can be adopted between the top plate 19 and the screw rod 23, for example, a hemispherical shell is welded on the top plate 19, then a steel ball is rotatably disposed in the shell, and the steel ball passes through the connecting rod 22 and is fixedly connected with the screw rod 23.

In the present embodiment, two sets of guide rods 16 are fixedly connected to the bottom plate 6, and all the guide rods 16 are uniformly distributed along the circumferential direction of the upper limit ring 15. The stability of upper limit ring 15 and lower limit ring 9 can be guaranteed to total four guide bars 16, avoids upper limit ring 15 and lower limit ring 9 because the area of being connected with guide bar 16 undersize and cause the slope.

In the actual construction process, the test to the stock usually adopts the method of sampling test, draw some samples from all stocks promptly and test, the quantity of sample usually can not be too much, but also can not only have one two, therefore the test procedure need fully carry on many times, when the model of stock is the same, the test condition to all samples should be the same, exert the same pulling force to all samples promptly, in order to improve the efficiency of software testing, make testing personnel can promote swinging arms 1 to suitable position fast, bottom plate 6 fixedly connected with stroke indication marker post 8, stroke indication marker post 8 is located the inboard of last spacing ring 15 and lower spacing ring 9, be provided with a plurality of scale marks 17 along length direction evenly distributed on the stroke indication marker post 8. When a first sample is tested, when the applied tensile force meets the test requirement, the scale marks 17 corresponding to the upper limiting ring 15 and the lower limiting ring 9 are recorded as target positions, the upper limiting ring 15 can be rapidly rotated to the target positions in the subsequent test process, the upper limiting ring 15 does not need to be gradually increased, and therefore the test is rapidly completed.

Utilize last spacing ring 15 and lower spacing ring 9 to limit the position of swinging arms 1 after good, can rotate in step and go up spacing ring 15 and lower spacing ring 9 and finely tune swinging arms 1, for the convenience of rotate in step and go up spacing ring 15 and lower spacing ring 9, the outside of going up spacing ring 15 is rotated and is connected with a plurality of dwang 27 along circumferencial direction evenly distributed, the pole 25 is bent to the iron of being connected with to the one end fixed connection that dwang 27 kept away from last spacing ring 15, iron is bent pole 25 and is towards the inboard of last spacing ring 15 when dwang 27 is parallel with the axis of last spacing ring 15, set up a plurality of breachs 26 along circumferencial direction evenly distributed on the outer wall of lower spacing ring 9, the width of breach 26 equals the diameter that pole 25 was bent to iron, it is equipped with permanent magnet 24 to inlay in breach 26. After utilizing last spacing ring 15 and spacing ring 9 to decide the position of swinging arms 1 well, rotatory rotation ann 27 makes iron bend the pole 25 and insert in breach 26, and pole 25 adsorbs firmly is bent to permanent magnet 24 with iron this moment to accomplish spacing ring 15 and spacing ring 9's being connected, iron bend the pole 25 and can produce thrust to the lateral wall of breach 26 with dwang 27 when rotating last spacing ring 15 after connecting well, thereby promote spacing ring 9 synchronous rotation down. In order to ensure that the iron bending rods 25 can be smoothly inserted into the notches 26, the number of the notches 26 needs to be greater than that of the iron bending rods 25, in this embodiment, the number of the rotating rods 27 and the number of the iron bending rods 25 are both set to be two, the number of the notches 26 is set to be sixteen, and all the notches 26 are uniformly distributed along the circumferential direction of the lower limiting ring 9.

The specific setting mode of the rotating rod 27 is as follows: the rotating rod 27 is rotatably connected with a mounting shaft 29 at one end close to the upper limiting ring 15, two mounting plates 28 are fixedly connected with two ends of the mounting shaft 29 respectively, and the mounting plates 28 are fixedly connected with the upper limiting ring 15.

In order to facilitate the rotation of the upper limiting ring 15, a plurality of rotating handles 14 extending along the radial direction are fixedly connected to the outer side wall of the upper limiting ring 15, and all the rotating handles 14 are uniformly distributed along the circumferential direction. The lower limit ring 9 may also be connected to a plurality of turning handles 14.

Considering that the hydraulic cylinder 2 can hinder the swing rod 1, the bottom plate 6 can be provided with the cushion block 7, the cushion block 7 jacks up the lower limiting ring 9, the effective stroke of the lower limiting ring 9 can be shortened, the lower limiting ring 9 can be rotated to be matched with the upper limiting ring 15 to fix the position of the swing rod 1, and the test efficiency is further improved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The utility model provides an anchor rod tension testing arrangement, includes the tensiometer, and the tensiometer includes pneumatic cylinder (2) and hydraulic jack (5) that communicate each other to pneumatic cylinder (2) and hydraulic jack (5) are linked together through hand pump (3), and hand pump (3) are rotated and are connected with swinging arms (1), its characterized in that: the device also comprises a pushing mechanism used for applying pushing force to the swinging rod (1), wherein the pushing mechanism comprises a bottom plate (6), an upper limiting ring (15) and a lower limiting ring (9), the bottom plate (6) is detachably connected with the hydraulic cylinder (2), the inner side of the upper limiting ring (15) is in threaded connection with at least one group of guide rods (16), the number of the group of guide rods (16) is two, the guide rods (16) are in threaded connection with the lower limiting ring (9) and are fixedly connected with the bottom plate (6), and the swinging rod (1) penetrates through the two guide rods (16) in the same group and is positioned between the upper limiting ring (15) and the lower limiting ring (9).

2. A rock bolt tension test device according to claim 1, wherein: two lateral part locating plates (11) of bottom plate (6) fixedly connected with and an end portion locating plate (10), wherein two lateral part locating plates (11) set up relatively, pneumatic cylinder (2) are located between two lateral part locating plates (11) to the one end of pneumatic cylinder (2) is supported on end portion locating plate (10), wears to be equipped with screw rod (23) on lateral part locating plate (11), and the one end of screw rod (23) is rotated and is connected with roof (19), and roof (19) are located between two lateral part locating plates (11), the other one end fixedly connected with lateral part location knob (12) of screw rod (23).

3. A rock bolt tension test device according to claim 2, wherein: one side of the top plate (19) facing the side positioning plate (11) is fixedly connected with a plurality of guide rods (18) parallel to the screw rods (23), the guide rods (18) penetrate through the side positioning plate (11), and one side of the top plate (19) back to the side positioning plate (11) is fixedly connected with a soft gasket (20).

4. A rock bolt tension test device according to claim 2, wherein: the cavity has been seted up to roof (19) inside, rotates in the cavity and is provided with circular shape linkage dish (21), and linkage dish (21) are coaxial to be linked firmly connecting rod (22) to the area of linkage dish (21) is greater than the sectional area of connecting rod (22), connecting rod (22) stretch out behind roof (19) with screw rod (23) are coaxial to be linked firmly.

5. A rock bolt tension test device according to claim 1, wherein: the bottom plate (6) is fixedly connected with two groups of guide rods (16), and all the guide rods (16) are uniformly distributed along the circumferential direction of the upper limiting ring (15).

6. A rock bolt tension test device according to claim 1, wherein: bottom plate (6) fixedly connected with stroke indication sighting rod (8), stroke indication sighting rod (8) are located go up spacing ring (15) with the inboard of spacing ring (9) down, be provided with a plurality of scale marks (17) along length direction evenly distributed on stroke indication sighting rod (8).

7. A rock bolt tension test device according to claim 1, wherein: go up the outside of spacing ring (15) and rotate dwang (27) that is connected with a plurality of edges circumferencial direction evenly distributed, dwang (27) are kept away from the one end fixedly connected with iron of spacing ring (15) and are bent pole (25), iron is bent pole (25) and is moved towards the inboard of spacing ring (15) on when dwang (27) is parallel with the axis of last spacing ring (15), set up a plurality of breach (26) along circumferencial direction evenly distributed on the outer wall of spacing ring (9) down, the width of breach (26) equals the diameter that iron was bent pole (25), inlays in breach (26) and is equipped with permanent magnet (24).

8. An anchor rod tension testing device according to claim 7, wherein: dwang (27) are close to the one end of last spacing ring (15) is rotated and is connected with installation axle (29), and mounting panel (28) of each fixedly connected with in both ends of installation axle (29), mounting panel (28) and last spacing ring (15) fixed connection.

9. A rock bolt tension test device according to claim 1, wherein: the outer side wall of the upper limiting ring (15) is fixedly connected with a plurality of rotary handles (14) extending along the radial direction, and all the rotary handles (14) are uniformly distributed along the circumferential direction.

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