CN216008551U

CN216008551U - Anchor cable lock

Info

Publication number: CN216008551U
Application number: CN202122240415.4U
Authority: CN
Inventors: 李明轩; 杜克辉; 刘永强
Original assignee: CCTEG Coal Mining Research Institute
Current assignee: CCTEG Coal Mining Research Institute
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-11
Anticipated expiration: 2031-09-14

Abstract

The utility model provides an anchor rope tool to lock, include: the lock comprises a lock core and a lock sleeve, wherein the lock core is in wedge-shaped fit in the lock sleeve and used for locking an anchor cable, the lock core can rotate relative to the lock sleeve, the lock core comprises a first core body part and a second core body part, the inner wall of the lock sleeve is provided with a notch, and the notch is used for dismounting the second core body part. The utility model provides an anchor rope tool to lock through set up the notch that matches with second core body portion on the lock sleeve inner wall, notch and first core body portion correspond during lock core locking anchor rope, rotate the lock sleeve, make the lock sleeve rotate for the lock core, make notch and second core body portion correspond, and then make second core body portion lift off to the realization need not move back anchor machine can be quick effect.

Description

Anchor cable lock

Technical Field

The utility model relates to a colliery is apparatus technical field in the pit, especially relates to an anchor rope tool to lock.

Background

At present, most of underground coal mine tunnels adopt an anchor net cable combined supporting mode, and an anchor cable supporting structure comprises an anchor cable, a supporting plate, an aligning ball pad and a lock. During construction, an anchor cable is firstly inserted into a drilled hole of the anchor cable constructed on a top plate, after anchoring of an anchoring agent in the drilled hole, a supporting plate, a self-aligning ball pad and an anchor cable lock are sequentially sleeved in the anchor cable, then the anchor cable is stretched by using an anchor cable stretching machine to enable the anchor cable to generate certain elastic deformation and pretightening force, and after stretching is finished, the anchor cable is locked through elastic retraction of the anchor cable and a self-locking function of a wedge-shaped lock core in the middle of the lock, so that the effect of anchor cable support is achieved.

In the coal face managed by the direct caving method, the roof anchor cable in the stoping roadway is usually required to be withdrawn in time so as to avoid large-area roof suspension and large-area pressure coming. At present, an anchor withdrawing device is adopted for withdrawing the anchor of the anchor cable. This method of anchor withdrawal suffers from several disadvantages:

(1) the anchor withdrawing machine needs the anchor cable to have a certain stretching range for anchor withdrawing. However, the anchor cable at the end is already in a high stress state, and the anchor cable is easy to stretch out due to continuous stretching.

(2) The anchor withdrawing machine has large mass and needs workers to lift to the height of the top plate. Often requiring three people to operate.

(3) If the exposed end of the anchor cable is exploded, the anchor cable is difficult to insert into the tensioning head of the anchor withdrawing machine, and anchor withdrawing cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model provides an anchor rope tool to lock for solve and use among the prior art and move back anchor machine and tool to lock cooperation and retreat the anchor rope that the anchor caused and stretch out and awkward defect, realize addding the notch at the lock sleeve inner wall, make the lock sleeve rotate the back for the lock core, lift off the second core portion of lock core through the notch, thereby realize changing the tool to lock structure and do not use and move back the anchor that the anchor machine also can be simple quick.

The utility model provides an anchor rope tool to lock, include: the lock cylinder is in wedge-shaped fit in the lock sleeve and used for locking the anchor cable, the lock cylinder can rotate relative to the lock sleeve,

the lock core comprises a first core part and a second core part, a notch is formed in the inner wall of the lock sleeve, and the notch is used for dismounting the second core part.

According to the anchor cable lock provided by the utility model, the second core body part comprises at least two first core blocks,

wherein an arc of the notch is greater than or equal to an arc of the first core block having the largest arc in the second core block and is smaller than an arc of the first core block.

According to the anchor cable lock provided by the utility model, the second core body part comprises two first core blocks, the radian of the two first core blocks is equal,

wherein an arc of the notch is equal to an arc of the first core block and is smaller than an arc of the first core part.

According to the utility model provides an anchor rope tool to lock, the lock sleeve includes supplementary portion of rotating, supplementary portion of rotating is used for assisting the lock sleeve for the lock core rotates.

According to the utility model provides an anchor rope tool to lock, supplementary rotation portion is for seting up the pore structure of lock sleeve outer wall, the pore structure is used for the inserted bar structure to rotate the lock sleeve.

According to the utility model provides an anchor rope tool to lock, the radian of second core somatic part is more than or equal to 180 degrees.

According to the utility model provides an anchor rope tool to lock, the radian of first pellet is 90 degrees.

According to the utility model provides an anchor rope tool to lock, the pore structure with the notch link up.

According to the utility model provides an anchor rope tool to lock, the inner wall of lock core with the coefficient of dynamic friction of anchor rope is greater than the outer wall of lock core with the coefficient of dynamic friction of lock sleeve.

According to the utility model provides an anchor rope tool to lock, first core part includes a plurality of second pellets.

The utility model provides an anchor rope tool to lock through set up the notch that matches with second core body portion on the lock sleeve inner wall, notch and first core body portion correspond during lock core locking anchor rope, rotate the lock sleeve, make the lock sleeve rotate for the lock core, make notch and second core body portion correspond, and then make second core body portion lift off to the realization need not move back anchor machine can be quick effect.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the anchor cable lock in a locking state provided by the present invention;

fig. 2 is one of schematic cross-sectional views of an anchor cable lock provided by the present invention;

fig. 3 is a second schematic cross-sectional view of the anchor cable lock according to the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

fig. 5 is a schematic view of the anchor releasing process of the anchor cable lock according to the present invention, wherein fig. (a) is a state diagram of the notch moving to the position of the B core block, fig. (B) is a state diagram of the B core block being detached, fig. (C) is a state diagram of the notch moving to the position of the C core block, and fig. (d) is a state diagram of the C core block being detached and released.

Reference numerals:

100: a lock cylinder; 200: a lock sleeve; 300: an anchor cable;

110: a first core section; 120: a second core section; 101: first core block

102: b, core block; 103: c, core block; 130: an exposed end;

201: a notch; 202: a pore structure; 301: a rod structure.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The existing anchor cable lockset comprises a lock sleeve and a lock core, wherein the outer wall of the lock sleeve is columnar, the inner wall of the lock sleeve is conical, the outer wall of the lock core is in an inverted conical shape matched with the inner wall of the lock sleeve, and the inner wall of the lock core is cylindrical. The lock core includes the core of three radian such as, three core radian with be 360 degrees, in the use, the anchor rope penetrates the lock sleeve along the less end of lock sleeve inner wall diameter, and the core is put into respectively after the anchor rope wears to see through the lock sleeve to lock the anchor rope. The smaller end of each core body is inserted into the larger diameter end of the inner wall of the lock sleeve, and after the three core bodies are all inserted into the lock sleeve, one end of the lock cylinder is exposed out of the lock sleeve, and the exposed part is the exposed part of the lock cylinder.

Embodiments of the present invention will be described below with reference to fig. 1 to 5. It is to be understood that the following description is only exemplary of the present invention and is not intended to limit the present invention.

As shown in fig. 1 and 2, the utility model provides an anchor rope 300 tool to lock, include: lock core 100 and lock cover 200, lock core 100 wedge fit is in lock cover 200 for locking anchor rope 300, and lock core 100 can rotate with respect to lock cover 200. The lock cylinder 100 includes a first core portion 110 and a second core portion 120, a notch 201 is formed in an inner wall of the lock sleeve 200, and the notch 201 is used for detaching the second core portion 120.

Aiming at the utility model discloses the wedge-shaped cooperation of lock core 100 and lock sleeve 200 can be that the outer wall of lock core 100 adopts the circular cone structure, and the inner wall of lock sleeve 200 adopts and realizes with the 100 inner wall complex inverted cone structures of lock core, and lock core 100 inserts and locks anchor rope 300 in the lock sleeve 200. The sum of the radians of the exposed ends 130 of the first core portion 110 and the second core portion 120 is 360 degrees, and after the lock cylinder 100 is installed in the lock sleeve 200, the exposed ends of the first core portion 110 and the second core portion 120 may form a closed concentric ring shape or a concentric ring shape with an opening. Also, the curvatures of the first core portion 110 and the second core portion 120 mentioned below are both exposed end curvatures.

In addition, when the lock cylinder 100 and the lock sleeve 200 are relatively moved, the lock cylinder 100 and the anchor line 300 are not relatively moved, and the contact surfaces of the lock cylinder 100 and the lock sleeve 200 are relatively smooth. In an optional embodiment of the present invention, the coefficient of dynamic friction between the inner wall of the lock cylinder 100 and the anchor cable 300 is greater than the coefficient of dynamic friction between the outer wall of the lock cylinder 100 and the lock sleeve 200. For example, to facilitate smooth relative rotation of the lock cylinder 100 and the lock sleeve 200, a lubricating oil, or other lubricating mechanism, may be added between the outer wall of the lock cylinder 100 and the inner wall of the lock sleeve 200 to facilitate rotation of the lock cylinder 100 and the lock sleeve 200.

Further, a notch 201 is formed in the inner wall of the lock sleeve 200, and the notch 201 may be a section of ring, a ring with the same depth up and down, or a ring with different depth up and down; the notch 201 may be a through slot extending through the upper and lower ends of the lock sleeve 200. The circular ring type notch 201 is concentric with the first core portion 110 and the second core portion 120 of the lock cylinder 100. Of course, the slot 201 may have other configurations, and the slot 201 enables the second core portion 120 to be reached after the lock cylinder 100 is rotated relative to the lock sleeve 200, and enables the second core portion 120 to be removed from the slot 201, and reduces the locking effect of the lock cylinder 100 and the cable 300, so that the cable 300 is automatically withdrawn after the second core portion 120 is removed.

As shown in fig. 2, in an embodiment of the present invention, the second core portion 120 includes at least two first cores 101, wherein the radian measure of the notch 201 is greater than or equal to the radian measure of the first core 101 with the largest radian measure in the second core portion 120 and is smaller than the radian measure of the first core portion 110.

Specifically, the second core section 120 is composed of a plurality of first core blocks 101, the total curvature of the second core section 120 is a, the curvatures of the first core blocks 101 are a1, a2 and A3 … An from large to small, a1+ a2+ A3+ … + An is a, the curvature of the first core section 110 is B, and a + B is 360 degrees. Wherein, the radian of the notch 201 is C, and C is more than or equal to A1 and is less than B. The number of the first cores 101 of the second core part 120 and the curvature of the second core part 120 are determined according to the magnitude of the frictional force between the key cylinder 100 and the anchor cable 300.

In other words, the tensile force of the anchor line 300 is constant during the process of continuously detaching the first core block 101 by rotating the lock sleeve 200, but the contact area of the anchor line 300 with the lock cylinder 100 is becoming smaller. Therefore, it is calculated how much the contact area is reduced under the tension, and then the tension is larger than the friction, the anchor line 300 is withdrawn from the lock cylinder 100, thereby obtaining the curvature of the second core body portion 120. The number of first cores 101 and the radian allocation are considered in combination with radians. For example, in some embodiments, the arc of the first core section 110 is equal to the arc of the second core section 120, i.e., the second core section 120 arc is 180 degrees.

Further, in another embodiment of the present invention, the first core section 110 includes a plurality of second core blocks. In other words, the first core section 110 may be an integral ring shape, but may be a ring shape composed of a plurality of second core blocks. However, to ensure that the locking process of the lock cylinder 100 does not loosen, the arc of the second core piece, which is the largest arc in the first lock cylinder 100, should be greater than the arc of the notch 201. The notch 201 corresponds to the position of the second core at the maximum arc during insertion of the lock cylinder 100 into the lock sleeve 200. After the rotation is started, the first core 101 is discharged.

As shown in fig. 3 and 4, in an alternative embodiment of the present invention, the second core portion 120 includes two first core blocks 101, and the radian of the two first core blocks 101 is equal, wherein the radian of the notch 201 is equal to the radian of the first core block 101 and smaller than the radian of the first core portion 110.

In another embodiment of the present invention, the arc of the first core block 101 is 90 degrees. For example, in the present embodiment, the first core block 101 includes the B core block 102 and the C core block 103, and the radian of the B core block 102 is equal to the radian of the C core block 103 is equal to the radian of the notch 201 is equal to 90 degrees. Therefore, the first core section 110 is 180 degrees. During the process of locking the anchor cable 300 when the lock cylinder 100 is inserted into the lock sleeve 200, the first core portion 110 is inserted at a position facing the notch 201, and the second core portion 120 is inserted in sequence. The second core body part 120 is prevented from being carelessly removed at the position corresponding to the notch 201 in the locking process, and the locking effect of the anchor cable 300 is prevented from being influenced. To ensure that the lock cylinder 100 and the lock sleeve 200 move relative to each other during the locking process, a limiting or locking structure may be provided to prevent relative rotation between the lock cylinder 100 and the lock sleeve 200 when rotation is not required.

In another optional embodiment of the present invention, the radian of the second core portion 120 is equal to or greater than 180 degrees. For example, in some embodiments, the first core block 101 includes a B core block 102 and a C core block 103, the arc of the B core block 102 is 120 degrees, the arc of the C core block 103 is 80 degrees, and the arc of the second core body 120 is 160 degrees. The arc of slot 201 may be 120 degrees or any arc greater than 120 degrees and less than 160 degrees.

As shown in fig. 1 and 5, in an embodiment of the present invention, the lock sleeve 200 includes an auxiliary rotating portion for assisting the lock sleeve 200 to rotate with respect to the lock cylinder 100.

Specifically, in an alternative embodiment of the present invention, the auxiliary rotating part is a hole structure 202 opened on the outer wall of the lock sleeve 200, and the hole structure 202 is used for inserting the rod structure 301 to rotate the lock sleeve 200. The hole structure 202 may be a through hole penetrating through the wall thickness of the lock sleeve 200, or may be a non-penetrating hole not penetrating through the wall thickness of the lock sleeve 200. The rod structure 301 is inserted into the aperture structure 202 to effect remote rotation of the lock sleeve 200 relative to the lock cylinder 100.

In addition, for example, the auxiliary rotating portion may be an ear structure provided on the outer wall of the lock case 200, the rod structure 301 or the chain structure may be inserted or penetrated into the ear structure to rotate the lock case 200, and the auxiliary rotating portion may be a tooth structure uniformly distributed on the outer wall of the lock case 200, and the key is engaged with the tooth structure by a wrench to rotate the lock case 200. The auxiliary rotating part may be a structure in which the other auxiliary lock sleeve 200 rotates.

In an alternative embodiment of the invention, as shown in fig. 5, the hole structure 202 is continuous with the slot 201. It is right to this structure the utility model discloses a concrete unblock process explains.

As shown in fig. 3, locking the anchor cable 300 with the slot 201 facing the first core section 110. The lever structure 301 is inserted into the aperture structure 202, rotating the lever structure 301 to thereby rotate the lock sleeve 200 counterclockwise (or clockwise) relative to the lock cylinder 100, as shown in fig. 5 (a), until the notch 201 is directed to the B-core piece 102 of the second core portion 120. As shown in fig. 5 (B), the B core block 102 is removed from the notch 201, but the condition for automatic withdrawal of the anchor cable 300 cannot be satisfied at this time, and the lever structure 301 is continuously rotated in the same direction, so that the lock sleeve 200 is continuously rotated counterclockwise (or clockwise), as shown in fig. 5 (C), until the notch 201 is directed to the C core block 103 of the second core portion 120. Similarly, as shown in fig. 5 (d), the C core block 103 is removed from the notch 201, and at this time, the friction between the anchor cable 300 and the lock cylinder 100 cannot satisfy the requirement of locking the anchor cable 300, so that the anchor cable 300 rebounds under the action of tensile force to realize anchor withdrawal, and the lock is released.

When the roof anchor cable is used, the roof anchor cable can be quickly withdrawn only by holding the rod structure to rotate the lock sleeve in the lateral inserting hole structure. The anchor withdrawal time is reduced from the original 5 minutes to 1 minute. Has the advantages of simple operation, safety and high efficiency. And the length of the rod structure is adjusted according to the field condition, so that the condition that an operator is in danger is avoided, and the safety is ensured. The anchor cable does not need to be stretched, the possibility of stretching the anchor cable continuously is avoided, and the anchor can still be withdrawn under the condition that the exposed end of the anchor cable is exploded.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An anchor cable lock, comprising: the lock cylinder is in wedge-shaped fit in the lock sleeve and used for locking the anchor cable, the lock cylinder can rotate relative to the lock sleeve,

2. The anchor cable lock of claim 1, wherein said second core portion includes at least two first core blocks,

3. The anchor cable lock of claim 2, wherein said second core portion includes two of said first core blocks, and wherein the two first core blocks are of equal curvature,

4. The cable bolt lock of claim 1, wherein the lock sleeve includes an auxiliary rotation portion for assisting rotation of the lock sleeve relative to the lock cylinder.

5. The cable bolt lock of claim 4, wherein the auxiliary rotation portion is a hole structure formed in an outer wall of the lock sleeve, the hole structure being used for inserting a rod structure to rotate the lock sleeve.

6. The cable bolt lock of any one of claims 1 to 5, wherein the second core portion has an arc of greater than or equal to 180 degrees.

7. The anchor cable lock of claim 3, wherein the arc of the first core block is 90 degrees.

8. The cable bolt lock of claim 5, wherein the bore structure is continuous with the slot.

9. The cable bolt lock of claim 1, wherein the coefficient of dynamic friction between the inner wall of the lock cylinder and the cable bolt is greater than the coefficient of dynamic friction between the outer wall of the lock cylinder and the lock sleeve.

10. The anchor cable lock of claim 1, wherein the first core portion comprises a plurality of second core blocks.