Anchorage device capable of measuring tensioning force

Abstract

The utility model discloses an anchorage device capable of measuring tension force, which belongs to the technical field of anchorage device support of coal mine tunnels and comprises a tray, an anchorage device body and a steel strand, a steel strand penetrating opening is arranged at the arch top of the tray, a plurality of petal protrusions are evenly pressed on the arch of the tray, and the petal protrusions are arranged on the steel strand penetrating opening. The petal convex curve is formed to a steel strand penetrating opening and is pressed into a curve elastic opening; the anchor body is of a large-end and small-end stepped structure. The device is specially designed for an anchorage device support, and the scheme can effectively monitor whether the tension force of an anchor cable reaches the standard when a coal roadway roof is supported, so that a worker can deal with abnormal problems in time, eliminate potential safety hazards, avoid the influence on the long-term performance and reliability of a structure, and improve the support construction quality and the safety of a laneway.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine roadway anchor support technical field, concretely relates to a kind of tension force type anchor device that can be determined. BACKGROUND

[0002] In the process of geotechnical engineering and underground space development, anchor cable is widely used in slope stability, foundation pit support and tunnel lining as an important reinforcement means.

[0003] However, in practical application, the pre-tightening force cannot be judged whether it meets the requirements when the traditional anchor cable anchor construction, and the pre-tightening force is too low to cause product slip anchoring failure, resulting in the phenomenon of roof falling in underground, forming potential safety hazard, affecting the long-term performance and reliability of structure. UTILITARY MODEL

[0004] In view of the above shortcomings of the prior art, the utility model provides a tension force type anchor device that can be determined;The tension force type anchor device that can be determined is designed specially for anchor support, and the scheme can effectively monitor whether the anchor cable tension force meets the standard during coal roadway roof support, so that the staff can timely handle abnormal problems, eliminate potential safety hazards, avoid affecting the long-term performance and reliability of structure, and improve the support construction quality and safety of well and roadway.

[0005] In order to solve the above technical problems, the utility model provides a tension force type anchor device that can be determined, which comprises a tray, an anchor body and a steel strand, the arch top of the tray is provided with a steel strand through hole, a plurality of petal protrusions are uniformly pressed on the arch of the tray, the petal protrusion is curved to form a curved elastic port by pressing the steel strand through hole;The anchor body adopts a size end step structure.

[0006] In further improvement of the utility model, the diameter of the curved elastic port is smaller than the small end diameter of the anchor body.

[0007] Through the above design, the small end of the anchor body enters the arch of the tray after the curved elastic port of the tray is deformed by the specified pre-tightening force.

[0008] In further improvement of the utility model, the outer edge of the small end head of the anchor body is rounded.

[0009] Through the above design, the scheme can more conveniently reduce the wear and tear between the anchor body and the curved elastic port.

[0010] In further improvement of the utility model, the large end bearing head of the anchor body is provided with a spherical structure.

[0011] Through the above design, the scheme can more conveniently cooperate between the anchor body and the tray.

[0012] In a further improvement of this utility model, the steel strands are arranged in the following order from the outside to the inside: the large end of the anchor body, the small end of the anchor body, and the curved elastic opening extending into the arch of the tray.

[0013] The above design makes the installation of steel strands easier.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model is specifically designed for anchor support. This solution can effectively monitor whether the tension of the anchor cable installed during the support of the roof of the coal roadway meets the standard, so that the staff can deal with abnormal problems in a timely manner, eliminate potential safety hazards, avoid affecting the long-term performance and reliability of the structure, and improve the quality of support construction and the safety of the mine roadway. Attached Figure Description

[0016] To more clearly illustrate the background technology or the technical solution of this utility model, the accompanying drawings used in conjunction with the prior art or specific embodiments are briefly introduced below. Obviously, the structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0018] Figure 2 This is a first-view structural diagram of the tray according to a specific embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the tray structure from a second perspective, representing a specific embodiment of the present invention.

[0020] Figure 4 This is a top view schematic diagram of the tray structure according to a specific embodiment of the present utility model.

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the AA-direction section.

[0022] The figure shows: 1. Tray; 101. Petal protrusion; 102. Curved elastic opening; 2. Large end of anchor body; 3. Small end of anchor body; 4. Steel strand. Detailed Implementation

[0023] In order to make the technical scheme in the present application better understood, the technical scheme in the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0024] Meanwhile, the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in the present specification are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Changes or adjustments of the relative relationship, without substantial changes in the technical content, are also regarded as the scope of implementation of the present application.

[0025] Meanwhile, in the description of the present specification, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two components, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0026] In actual application, the traditional anchor cable anchor cannot judge whether the pre-tightening force meets the requirements, and the pre-tightening force that is too low will cause the product to slip and anchor failure, resulting in the phenomenon of roof falling in the mine, forming potential safety hazards, affecting the long-term performance and reliability of the structure.

[0027] Therefore, the design concept of the present application is to design an anchor that can effectively monitor whether the tension meets the requirements, so that the staff can timely handle abnormal problems, eliminate potential safety hazards, avoid affecting the long-term performance and reliability of the structure, and improve the support construction quality and the safety of the well and roadway.

[0028] As Figures 1-5As shown, the application provides a tension anchor, which comprises a tray 1, an anchor body and a steel strand 4, the arch top of the tray 1 is provided with a steel strand through hole, and a plurality of petal protrusions 101 are uniformly pressed on the arch of the tray 1, and the petal protrusions 101 are curvedly formed to a curved elastic port 102 pressed by the steel strand through hole; the anchor body adopts a size end step structure.

[0029] The petal protrusions 101 of the tray 1 and the steel strand through hole are pressed to form the curved elastic port 102, which can not only increase the strength of the tray 1, but also measure the tension of the anchor cable anchor by using the elastic deformation of the tray port (steel strand through hole).

[0030] The diameter of the curved elastic port 102 is smaller than the diameter of the small end 3 of the anchor body, and can be pressed into the large end 2 of the anchor body after standard pre-tightening force.

[0031] The outer edge of the end head of the small end 3 of the anchor body is chamfered.

[0032] The large end 2 of the anchor body is provided with a spherical structure at the bearing end head.

[0033] The steel strand 4 extends into the arch of the tray 1 through the large end 2 of the anchor body, the small end 3 of the anchor body and the curved elastic port 102 from outside to inside.

[0034] Embodiment

[0035] After starting the pump station, the cylinder of the tensioning machine is out of the cylinder, the cylinder contacts the anchor after starting to tension the steel strand, the conical hole in the anchor ring cooperates with the outer cone of the anchor piece, so that the steel strand is locked by the tool anchor and cannot be retracted, and the internal oil pressure of the mine anchor cable tensioning tool is unloaded after reaching the tensioning requirement; at this time, the anchor inside the card locks the steel strand to prevent it from retracting; the prestress generated by the forced elongation of the steel strand is transmitted to the rock stratum, so that the purpose of permanently anchoring the steel strand by the anchor is achieved, and the cylinder returns to the bottom after the wedge anchor ring opens the tool anchor piece, so that the mine anchor cable tensioning machine exits the steel strand, and the tensioning is completed.

[0036] The above is the construction process, and the disadvantage is that the pre-tightening force cannot be judged during construction, and the pre-tightening force is too low to cause product slippage and anchoring failure, resulting in the phenomenon of underground roof falling.

[0037] The design scheme of the application is that a plurality of petal protrusions 101 are uniformly pressed on the arch of the tray 1, the end head of the petal protrusion 101 is communicated with the steel strand through hole to press a curved elastic port 102, and the anchor body adopts a size end step structure, and the small end 3 of the anchor body cooperates with the curved elastic port 102 with interference.

[0038] In use, through a certain tension, the small end 3 of the anchor body deforms the curved elastic mouth 102 and is pressed into the tray 1, and vice versa, if the small end 3 of the anchor body is not pressed into the tray 1, it indicates that the tension is not up to standard, thus playing a role in measuring the pre-tightening force.

[0039] The application can effectively monitor whether the tension is up to standard, improve the support construction quality, improve the safety of the well and roadway, and can replace other suspended pre-tightening force measuring devices, and the sunken structure can increase the passing space of the roadway.

[0040] Although the utility model has been described in detail by referring to the drawings and in combination with the preferred embodiments, the utility model is not limited thereto, and those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model without departing from the spirit and essence of the utility model, and these modifications or replacements shall be within the scope of the utility model / any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and all shall be covered within the protection scope of the utility model, therefore, the protection scope of the utility model shall be subject to the protection scope of the claims.

Claims

1. A determinate tensioned anchor, comprising a tray, an anchor body and a steel strand, wherein an arch top of the tray is provided with a steel strand through hole, characterized in that, The arch of the tray is uniformly pressed with a plurality of petal protrusions, the petal protrusions are curvedly formed into curved elastic ports by pressing.

2. The determinable tensioned anchor of claim 1, wherein, The diameter of the curved elastic port is less than the diameter of the small end of the anchor.

3. The determinable tensioned anchor of claim 1, wherein, The outer edge of the small end of the anchor is chamfered.

4. The determinable tensioned anchor of claim 1, wherein, The large end of the anchor is provided with a spherical structure.

5. The determinable tensioned anchor of claim 1 wherein, The steel strand extends into the arch of the tray through the large end of the anchor, the small end of the anchor and the curved elastic port from outside to inside.

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