A kind of quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support

Abstract

The application discloses a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, which comprises an anchor cable sleeve for placing anchor cables, and a sleeve mechanism used in cooperation with a single hydraulic prop for tensioning the anchor cables to a pre-tightening force, wherein the sleeve mechanism comprises a lock and a sleeve assembly, the lock is used in cooperation with the anchor cable sleeve, and the sleeve assembly comprises a tray, a one-way buckle, a sleeve cylinder and the lock, and the sleeve cylinder is used in cooperation with the single hydraulic prop; the application can combine the passive single hydraulic prop support and the active anchor cable support into an integrated unit in the advanced support of a coal mine tunnel, reduce the construction amount when the two support modes jointly act, and realize the functions of integrated active and passive support and quick roof caving.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of advanced support of coal mine roadway, and particularly relates to a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support. BACKGROUND

[0002] In the advanced support of coal mine roadway, the main way is to realize passive support through single hydraulic prop and hydraulic support or to realize active support by anchoring in deep stratum through anchor cable to exert pre-tightening force. The two kinds of advanced support modes often need to act together to realize the stability of the roadway during coal mining. However, both of the two support modes are relatively cumbersome in actual construction, not only a lot of manpower and material resources need to be spent in the installation process, but also the disassembly needs to be re-performed in the process of roof caving after mining, thereby causing double waste of manpower and material resources.

[0003] Therefore, it is necessary to provide a device that better combines the interaction of the two support modes to simplify the construction process of the two support modes and solve the problems raised in the background. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, which solves the above problems.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme: a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, comprising: an anchor cable sleeve for placing the anchor cable; a sleeve mechanism for use with a single hydraulic prop for tensioning the anchor cable to a pre-tightening force, the sleeve mechanism comprising a lock and a sleeve assembly, the lock being used in cooperation with the anchor cable sleeve; wherein the sleeve assembly comprises a tray, a one-way buckle, a sleeve barrel and a lock, the tray is fixedly connected with the sleeve barrel, a ring-shaped one-way guide groove is formed on the sleeve barrel and slidably cooperates with the anchor cable sleeve, the one-way buckle cooperates with a clamping groove formed on the anchor cable sleeve, the one-way buckle is arranged in the ring-shaped one-way guide groove and connected with the sleeve barrel, and the sleeve barrel cooperates with the single hydraulic prop.

[0006] On the basis of the above technical scheme, the present application further provides the following optional technical schemes:

[0007] Further technical scheme: the sleeve barrel is detachably connected with the single hydraulic prop through a bolt assembly, and a fixing screw hole is formed on the sleeve barrel.

[0008] Further technical scheme: the tray and the sleeve barrel are formed by welding, riveting or integral casting.

[0009] The application relates to a method for using a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, which is based on the quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, and comprises the following specific steps:

[0010] S1: after the anchor cable is anchored, the anchor cable sleeve is inserted into the exposed tail end of the anchor cable and is locked by using a lock to limit the anchor cable sleeve;

[0011] S2: the mutually fixed and connected tray and the sleeve cylinder are inserted into the anchor cable sleeve by using the annular one-way guide groove arranged on the sleeve cylinder, and the anchor cable sleeve is limited on the sleeve cylinder by the one-way buckle in the annular one-way guide groove;

[0012] S3: the single hydraulic prop is connected to the sleeve cylinder by the bolt assembly, the sleeve cylinder is pushed to move linearly to give the tray a supporting force, at this moment, the one-way buckle in the annular one-way guide groove generates a downward reaction force to tension the anchor cable to a pre-tightening force, and thus the active and passive integrated support is completed;

[0013] S4: the single hydraulic prop is removed, the tray loses the supporting force, the anchor cable loses the pre-tightening force, the active support is invalid, and meanwhile, the lock is unlocked, the tray, the sleeve cylinder and the anchor cable sleeve are recycled, and the effect of quick roof caving of the anchor cable is realized.

[0014] Beneficial effects

[0015] The application provides a quick roof caving single hydraulic prop sleeve combined with anchor cable active and passive support, and compared with the prior art, has the following beneficial effects:

[0016] 1. The sleeve cylinder is integrated with the anchor cable through the single hydraulic prop, integrated support is formed, the construction process when two kinds of support modes are jointly implemented is reduced, and the construction progress is accelerated;

[0017] 2. After the integrated support is formed, the tray bears the functions of supporting the roof beam of the anchor cable tray and the single hydraulic support, material use is reduced, and cost is lowered;

[0018] 3. After the stoping is completed, the anchor cable is retreated when the single hydraulic support is removed, the roof caving process is reduced, and quick roof caving is realized;

[0019] 4. The sleeve is convenient to use, has low learning cost, can be completed in the anchor cable construction process, and extra labor is reduced. DETAILED DESCRIPTION

[0020] Fig. 1 It is a whole structure schematic view of the application.

[0021] Fig. 2 It is a front view of the application.

[0022] Fig. 3 is a top view of the present application.

[0023] Reference sign annotation: 1, anchor cable sleeve; 2, tray; 3, clamping groove; 4, one-way buckle; 5, sleeve barrel; 6, lock; 7, fixing screw hole; 8, ring-shaped one-way guide groove. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application.

[0025] The specific implementation of the present application is described in detail below in combination with specific examples.

[0026] Please refer to Figs. 1-3 , provided by an embodiment of the present application, a kind of quick roof caving single hydraulic prop sleeve of combined anchor cable active and passive support, including for placing anchor cable anchor cable sleeve 1, cooperate single hydraulic prop and be used to anchor cable tension to pre-tightening force sleeve mechanism, the sleeve mechanism includes lock 6 and sleeve assembly, the lock 6 is used in cooperation with anchor cable sleeve 1, the sleeve assembly includes tray 2, one-way buckle 4, sleeve barrel 5 and lock 6, the tray 2 is fixedly connected with sleeve barrel 5, the sleeve barrel 5 is opened with the ring-shaped one-way guide groove 8 of sliding cooperation with anchor cable sleeve 1, the one-way buckle 4 is used in cooperation with the clamping groove 3 opened on anchor cable sleeve 1, the one-way buckle 4 is arranged in ring-shaped one-way guide groove 8 and is fixedly connected with sleeve barrel 5 (in some embodiments, the one-way buckle 4 can also be used in cooperation with sleeve barrel 5 in the way of clamping or threaded connection).

[0027] Specifically, the sleeve barrel 5 is detachably connected with the single hydraulic prop by bolt assembly, and the sleeve barrel 5 is provided with a fixing screw hole 7, and the person skilled in the art should know that the sleeve barrel 5 can also be connected with the single hydraulic prop by clamping connection in addition to being detachably connected with the single hydraulic prop by bolt assembly.

[0028] Specifically, the single hydraulic prop, and the person skilled in the art should know that in the embodiment, the single hydraulic prop is used to push the sleeve barrel 5 to move linearly, so in some embodiments, the single hydraulic prop can also be replaced by an electric telescopic rod prop or a pneumatic cylinder prop.

[0029] Specifically, the tray 2 and the sleeve barrel 5 are welded or riveted, and in some embodiments, the tray 2 and the sleeve barrel 5 can also be integrally cast.

[0030] Specifically, the lock 6 adopts a commonly used anchor cable lock and its specification can be adapted according to the specification of the anchor cable, and the outer diameter of the lock 6 is greater than or equal to the outer diameter of the anchor cable sleeve 1. The purpose of such arrangement is to facilitate the adaptation of the lock 6 to the anchor cable, and at the same time, the anchor cable sleeve 1 can be limited on the anchor cable.

[0031] In the embodiment of the present application, after the anchor cable is anchored, the anchor cable sleeve 1 is inserted into the exposed tail end of the anchor cable, and then the anchor cable is locked by the lock 6 to fix the anchor cable sleeve 1. Then, the tray 2 and the sleeve barrel 5 are inserted into the annular one-way guide groove 8 of the sleeve barrel 5 from the bottom end of the anchor cable sleeve 1, and the sleeve barrel 5 is fixed on the anchor cable by the one-way buckle 4 arranged in the annular one-way guide groove 8. Finally, the sleeve barrel 5 is fixed on the single hydraulic prop by the fixing screw hole 7, and the tray 2 of the present application forms a supporting force to drive the one-way buckle 4 of the annular one-way guide groove 8 to generate a downward reaction force on the anchor cable, thereby tensioning the anchor cable to a pre-tightening force. Thus, the active and passive integrated support is completed. After the support is completed, the single hydraulic prop is removed, the tray 2 loses the supporting force, and at the same time, the anchor cable loses the pre-tightening force, the active support is invalid, the quick roof caving is realized, and finally, the lock 6 is unlocked, and the tray 2, the sleeve barrel 5 and the anchor cable sleeve 1 of the present application are recycled.

[0032] A use method of the single hydraulic prop sleeve for combined anchor cable active and passive support and quick roof caving, based on the above-mentioned single hydraulic prop sleeve for combined anchor cable active and passive support and quick roof caving, the specific steps include:

[0033] S1: after the anchor cable is anchored, the anchor cable sleeve 1 is inserted into the exposed tail end of the anchor cable and the anchor cable is locked by the lock 6 to limit the anchor cable sleeve 1;

[0034] S2: the tray 2 and the sleeve barrel 5 fixedly connected to each other are inserted into the anchor cable sleeve 1 by using the annular one-way guide groove 8 arranged on the sleeve barrel 5, and the anchor cable sleeve 1 is limited on the sleeve barrel 5 by the one-way buckle 4 in the annular one-way guide groove 8;

[0035] S3: the single hydraulic prop is connected to the sleeve barrel 5 by the bolt assembly, and the sleeve barrel 5 is pushed to move linearly by the single hydraulic prop to give the tray 2 a supporting force. At this time, the one-way buckle 4 in the annular one-way guide groove 8 generates a downward reaction force to tension the anchor cable to a pre-tightening force, and thus the active and passive integrated support is completed;

[0036] S4: the single hydraulic prop is removed, the tray 2 loses the supporting force, and at the same time, the anchor cable loses the pre-tightening force, the active support is invalid, and at the same time, the lock 6 is unlocked, and the tray 2, the sleeve barrel 5 and the anchor cable sleeve 1 are recycled, thereby realizing the effect of quick roof caving of the anchor cable.

[0037] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A rapid caving single hydraulic prop sleeve with combined anchor cable active and passive support, characterized in that, include: Anchor cable sleeve (1) is used to place the anchor cable; A sleeve mechanism, used in conjunction with a single hydraulic support, is used to tension the anchor cable to a preload. The sleeve mechanism includes a lock (6) and a sleeve assembly. The lock (6) is used in conjunction with the anchor cable sleeve (1). The sleeve assembly includes a tray (2), a one-way buckle (4), a sleeve body (5), and a lock (6). The tray (2) is fixedly connected to the sleeve body (5). The sleeve body (5) has an annular one-way guide groove (8) that slides with the anchor cable sleeve (1). The one-way buckle (4) is used in conjunction with a groove (3) on the anchor cable sleeve (1). The one-way buckle (4) is located in the annular one-way guide groove (8) and connected to the sleeve body (5). The sleeve body (5) is used in conjunction with a single hydraulic support.

2. The rapid caving single hydraulic prop sleeve with combined anchor cable active and passive support according to claim 1, characterized in that, The sleeve body (5) is detachably connected to the single hydraulic support via a bolt assembly, and a fixing screw hole (7) is provided on the sleeve body (5).

3. The rapid caving single hydraulic prop sleeve with combined anchor cable active and passive support according to claim 2, characterized in that, The tray (2) and the sleeve body (5) are made by welding, riveting or integral casting.

4. A method for using a single hydraulic prop sleeve for rapid caving with combined anchor cable active and passive support, characterized in that, The specific steps of the rapid caving single hydraulic prop sleeve based on the combined anchor cable active and passive support as described in claim 3 include: S1: After the anchor cable is anchored, insert the anchor cable sleeve (1) into the exposed end of the anchor cable and use the lock (6) to lock the anchor cable and limit the anchor cable sleeve (1); S2: Using the annular one-way guide groove (8) opened on the sleeve body (5), the tray (2) and the sleeve body (5) that are fixedly connected to each other are inserted into the anchor cable sleeve (1), and the anchor cable sleeve (1) is fixed on the sleeve body (5) by the one-way buckle (4) in the annular one-way guide groove (8). S3: Connect the single hydraulic prop to the sleeve body (5) through the bolt assembly, and use the single hydraulic prop to push the sleeve body (5) to make linear movement to give the pallet (2) support force. At this time, the one-way buckle (4) in the annular one-way guide groove (8) generates a downward reaction force to tension the anchor cable to the pre-tightening force, thus completing the active and passive integrated support. S4: Remove the single hydraulic support, the pallet (2) loses its support force, and the anchor cable loses its pretension force, the active support fails, and the lock (6) is released at the same time. The pallet (2), the sleeve body (5) and the anchor cable sleeve (1) are recovered to achieve the effect of quickly releasing the anchor cable.

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