Metal net tensile strength detection mechanism

Abstract

The utility model relates to the technical field of tensile strength detection, in particular to a metal net tensile strength detection mechanism which comprises a protection box and a fixing mechanism convenient for fixing a metal net, inlets and outlets are formed in the two sides of the protection box, and a mounting groove is formed in the top of the protection box; the fixing mechanism comprises a moving frame, a clamping frame and a rotating shaft; the rotating shaft is fixedly connected with an output shaft of the motor; the clamping frame is installed on the moving frame in a sliding mode, and a straight rack is fixedly installed on the clamping frame. According to the metal net protection device, the protection box can prevent a worker from being hurt when the metal net is broken, the metal net can be conveniently fixed through the clamping frame capable of being moved out, the protection box does not need to be opened many times, the working intensity is reduced, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tensile strength detection technical field, concretely relates to a kind of metal net tensile strength detection mechanism. BACKGROUND

[0002] Metal net is a reinforcing structure matched with anchor rod and shotcrete support. It can significantly improve the tensile strength of the sprayed layer and change a single anchor rod into a group anchor system, thereby enhancing the restraining force of the support layer on the rock wall. The metal net is divided into prefabricated metal net and on-site compiled metal net. Before the metal net is put into use, its tensile strength needs to be detected.

[0003] In the prior art, for example, the utility model disclosed in patent publication No. CN217586689U discloses a metal net tensile strength detection mechanism, which comprises a processing table, a metal net tensile strength detector is fixedly installed at the top end of the processing table, the metal net tensile strength detector comprises a lower tensile clamp and an upper tensile clamp, the upper tensile clamp is located directly above the lower tensile clamp, rotating arms are rotatably connected to the two sides of the upper tensile clamp, one end of each of the two rotating arms adjacent to each other is fixedly connected to a sliding block, a fixed frame is arranged between the two sliding blocks, and a transparent baffle is slidably connected to the inner wall of the fixed frame. When the rotating arm is rotated to be parallel to the upper tensile clamp, the fixed frame is located in front of the upper tensile clamp. Further, by pressing the fixed frame with the hand-held handle, the sliding block is driven to slide in the sliding groove. Since the sliding block and the sliding groove have a certain friction force, they will not slide automatically in the stationary state. Further, when the fixed frame is driven to slide to the clamping position, a certain shielding effect is achieved.

[0004] The device can avoid the danger caused by sudden breakage of the metal net. However, during multiple detections, the fixed frame needs to be repeatedly manually removed, which increases the working intensity and affects the working efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a metal net tensile strength detection mechanism that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of the utility model, the following technical solutions are adopted: a metal net tensile strength detection mechanism, comprising: a protective box, a fixing mechanism for fixing the metal net;

[0008] Two sides of the protective box are provided with an inlet and an outlet, and an installation slot is formed in the top of the protective box.

[0009] The fixing mechanism comprises: a moving frame, a clamping frame, and a rotating shaft.

[0010] The rotating shaft is fixedly connected with an output shaft of the motor; the clamping frame is slidably installed on the moving frame; and a straight rack is fixedly installed on the clamping frame.

[0011] Further, a gear is slidably installed on the rotating shaft, the gear is engaged with the straight rack; a limiting slot is formed in the moving frame, and a limiting rod is fixedly installed in the limiting slot.

[0012] Further, the gear is rotatably installed on a connecting frame, the connecting frame is fixedly installed on the moving frame; a moving block is slidably installed on the limiting rod, and the moving block is fixedly installed on the clamping frame.

[0013] Further, a clamping plate is slidably installed in the clamping frame, a threaded rod is rotatably installed on the clamping plate; and the threaded rod is threadedly installed on the clamping frame.

[0014] Compared with the prior art, the metal mesh tensile strength detection mechanism has the following beneficial effects: the protective box can avoid hurting the worker when the metal mesh is broken, the movable clamping frame is convenient for fixing the metal mesh, the protective box does not need to be opened for many times, the working strength is reduced, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application.

[0016] Fig. 1 It is a structural schematic view of the metal mesh tensile strength detection mechanism.

[0017] Fig. 2 It is a sectional structure schematic view of the metal mesh tensile strength detection mechanism.

[0018] Fig. 3 It is a structural schematic view of the metal mesh tensile strength detection mechanism.

[0019] Fig. 4 It is a structural schematic view of the clamping piece in the present application.

[0020] In the drawing: 1, protective box; 2, supporting leg; 3, installation slot; 4, inlet and outlet; 5, clamping frame; 6, moving frame; 7, motor; 8, rotating shaft; 9, gear; 10, connecting frame; 11, guide rod; 12, spring; 13, display; 14, steel wire rope; 15, clamping plate; 16, straight rack; 17, hydraulic cylinder; 18, limiting rod; 19, moving block; 20, threaded rod; 21, limiting slot; 22, rotating wheel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the following will combine the technical scheme in the utility model embodiment to make clear and complete description, obviously, the described embodiment is part of the utility model, rather than all the embodiments.

[0022] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the protection scope of the utility model. When the mechanism is referred to as "fixed to" another mechanism, it can be directly on another mechanism or there can be a central mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to another mechanism or there can be a central mechanism. When a mechanism is considered to be "set on" another mechanism, it can be directly set on another mechanism or there can be a central mechanism. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0023] As Figs. 1 to 4 shown, the utility model discloses a metal net tensile strength detection mechanism, including: protection case 1, the fixed mechanism of being convenient for fixed metal net.

[0024] The both sides of protection case 1 are provided with import and export 4, and installation slot 3 is arranged on the top of protection case 1;The bottom of protection case 1 is fixedly provided with support leg 2;Horizontal guide rod 11 is fixedly installed in protection case 1.

[0025] The fixing mechanism comprises a moving frame 6, a clamping frame 5 and a rotating shaft 8; the rotating shaft 8 is rotatably installed in the installation groove 3, and is fixedly connected with an output shaft of a motor 7; the motor 7 is fixedly installed on the outer wall of the protective box 1; a gear 9 is slidably installed on the rotating shaft 8, and the gear 9 is engaged with the straight rack 16; a limiting strip is fixedly installed on the rotating shaft 8, and a limiting groove 21 is formed in the gear 9; the limiting strip slides through the limiting groove 21; the gear 9 is rotatably installed on a connecting frame 10, and the connecting frame 10 is fixedly installed on the moving frame 6; the moving frame 6 is slidably installed on a guide rod 11, and the clamping frame 5 is slidably installed on the moving frame 6; the straight rack 16 is fixedly installed on the clamping frame 5; a limiting groove 21 is formed in the moving frame 6, and a limiting rod 18 is fixedly installed in the limiting groove 21; a moving block 19 is slidably installed on the limiting rod 18, and the moving block 19 is fixedly installed on the clamping frame 5; a clamping plate 15 is slidably installed in the clamping frame 5, and a threaded rod 20 is rotatably installed on the clamping plate 15; the threaded rod 20 is threadedly installed on the clamping frame 5; two clamping plates 15 are slidably installed in the clamping frame 5, and the heights of the two clamping plates 15 are controlled by two threaded rods 20 respectively; an elastic layer is arranged on the clamping surface of the clamping plate 15, so that the frictional resistance between the clamping plate 15 and the metal mesh is increased, and the firmness of the fixed metal mesh is improved.

[0026] The protective box 1 can avoid injuring the workers when the metal mesh is broken, and the metal mesh can be fixed through the removable clamping frame 5, so that the protective box 1 does not need to be opened for many times, the working strength is reduced, and the working efficiency is improved; in the prior art, in order to avoid injuring the workers when the metal mesh is broken in the stretching, a baffle or a protective net is used for isolation protection, but while the safety is improved, the working strength is increased and the detection efficiency is affected when the protective net is repeatedly opened or the baffle is removed during the continuous metal mesh tensile strength detection; therefore, the motor 7 is started, the output shaft of the motor 7 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the gear 9 to rotate, the gear 9 drives the straight rack 16 to move, and the straight rack 16 drives the clamping frame 5 to move on the moving frame 6, so that the clamping frame 5 can be removed from the protective box 1 through the inlet and outlet 4, and the installation of the metal mesh is facilitated.

[0027] Two mobile frames 6 are fixedly connected by a steel wire rope 14, two ends of the steel wire rope 14 are fixedly connected on the same side of the two mobile frames 6, the steel wire rope 14 is movably installed on two rotating wheels 22, the rotating wheels 22 are rotatably installed on a fixed rod, the fixed rod is fixedly installed on the inner wall of the protection box 1, the two rotating wheels 22 make the steel wire rope 14 fold twice, so that the two mobile frames 6 can move towards or away from each other, the mobile frame 6 away from the rotating wheel 22 is fixedly connected with the piston rod of a hydraulic cylinder 17, the hydraulic cylinder 17 is fixedly installed on the inner wall of the protection box 1, the mobile frame 6 close to the rotating wheel 22 is fixedly installed with a spring 12 between the inner wall of the protection box 1, the spring 12 is sleeved on the guide rod 11, and the spring 12 is used for resetting the mobile frame 6, and the hydraulic cylinder 17 is electrically connected with a display 13, and the display 13 is fixedly installed on the outer wall of the protection box 1.

[0028] Working principle:

[0029] The two ends of the metal net are inserted into the clamping frame 5, the threaded rod 20 is rotated, the threaded rod 20 pushes the clamping plate 15 to descend and clamps the metal net, and the two ends of the metal net are fixed; the motor 7 is started, the output shaft of the motor 7 rotates in a forward direction and drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the gear 9 to rotate, the gear 9 drives the straight rack 16 to move, the straight rack 16 drives the clamping frame 5 to move, and the clamping frame 5 drives the metal net to enter the protection box 1 through the inlet and outlet 4; the hydraulic cylinder 17 is started, the piston rod of the hydraulic cylinder 17 pulls the mobile frame 6, the mobile frame 6 pulls the other mobile frame 6 through the steel wire rope 14, so that the two mobile frames 6 pull the two ends of the metal net, and the tension of the stretched metal net is displayed through the display 13; after detection is completed, the piston rod of the hydraulic cylinder 17 is retracted, the metal net is inserted into the end of the clamping frame 5 located outside the protection box 1, the clamping plate 15 is adjusted through the threaded rod 20, and then the output shaft of the motor 7 is reversed, so that the clamping frame 5 moves in the opposite direction, the undetected metal net enters the protection box 1, and the detected metal net moves out of the protection box 1 through the inlet and outlet 4, so that the protection box 1 does not need to be opened for many times, the working intensity is reduced, and the detection efficiency is improved.

[0030] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0031] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall belong to the protection scope of the appended claims of the utility model.

Claims

1. A metal mesh tensile strength testing mechanism, characterized in that, Include: The protection box (1) is convenient to fix the fixed mechanism of metal net; The protection box (1) is opened on both sides and the import and export (4) is opened in the top of the protection box (1) and is equipped with the installation groove (3); The fixed mechanism includes: moving frame (6), clamping frame (5) and rotating shaft (8); The rotating shaft (8) is fixedly connected with the output shaft of motor (7), the moving frame (6) is slidably installed with the clamping frame (5), and the clamping frame (5) is fixedly installed with the straight rack (16).

2. The metal mesh tensile strength detection mechanism of claim 1, wherein, The rotating shaft (8) is slidably installed with the gear (9), the gear (9) is engaged with the straight rack (16), the moving frame (6) is opened with the limiting slot (21), and the limiting slot (21) is fixedly installed with the limiting rod (18).

3. The metal mesh tensile strength detection mechanism of claim 2, wherein, The gear (9) is rotatably installed on the connecting frame (10), the connecting frame (10) is fixedly installed on the moving frame (6), the limiting rod (18) is slidably installed with the moving block (19), and the moving block (19) is fixedly installed on the clamping frame (5).

4. The metal mesh tensile strength detection mechanism of claim 3, wherein, The clamping frame (5) is slidably installed with the clamping plate (15), the clamping plate (15) is rotatably installed with the threaded rod (20), and the threaded rod (20) is threadedly installed on the clamping frame (5).

Images