CN207051116U - A kind of mine support material mechanical performance comprehensive test device - Google Patents

Abstract

The utility model relates to a comprehensive test device for the mechanical properties of mine support materials, which can effectively solve the problem that current test equipment cannot comprehensively test the shear performance of anchor rods. The technical solution is that the vertical loading device includes a base, an upper beam and four A rigid loading frame composed of uprights, the base and the upper beam are supported and connected by four uprights, the vertical servo actuator is placed on the upper beam, the piston rod of the vertical servo actuator is connected to the tension sensor, and the tension sensor is connected to the clamp The head guide frame and the collet, the transverse shearing device are composed of a horizontal loading bracket, a horizontal moving guide rail, a shearing servo cylinder and a shearing attachment. The horizontal loading bracket is provided with a horizontal moving guide rail. The utility model has a novel and reasonable structure and good effect , which increases its measuring range, is widely used, and is simple and easy to operate. It is a great innovation in the comprehensive testing device for the mechanical properties of mine support materials.

Description

A comprehensive testing device for mechanical properties of mine support materials

technical field

The utility model relates to the field of mine support, in particular to a comprehensive testing device for the mechanical properties of mine support materials.

Background technique

With the increasingly complex mining conditions, various joint support forms based on anchor net support are generally used in the roadway, but the effect is mediocre. The reasons are as follows: (1) After the mine enters deep mining, the mechanical state of the mine roadway supporting materials becomes more and more complicated. In the anchor net support system, the anchor rod (cable) is not only subjected to tensile/compressive stress, but also shear stress, and the deformation and failure of the anchor rod (cable) is largely due to the result of shearing. The testing equipment does not have tensile-shear mechanical performance test, especially the shear performance under the anchored state; (2) There are serious defects in the rational matching of anchor-mesh support system components and shed-type support system components, which affects the interaction of system components. (3) The deep roadway is subject to high stress, so it must need high-strength support materials. At present, there is a lack of relevant large-tonnage testing devices in China. Therefore, it is imperative to develop a comprehensive testing device for the mechanical properties of mine support materials.

Contents of the invention

In view of the above situation, in order to solve the defects of the prior art, the purpose of this utility model is to provide a comprehensive test device for the mechanical properties of mine support materials, which can effectively solve the problem that the current test equipment cannot comprehensively test the shear performance of anchor rods, so that it can simultaneously Realize the testing of tensile and shearing properties of anchor rods (cables), tensile and shearing properties of anchors, compression performance testing of U-shaped steel brackets, and mechanical testing of mine support components.

The technical scheme solved by the utility model is to include a vertical loading device, a transverse shearing device and a control device. The vertical loading device includes a rigid loading frame composed of a base, an upper beam and four columns, and four columns are arranged between the base and the upper beam. The support connection, the vertical servo actuator is placed on the upper beam, the piston rod of the vertical servo actuator is connected to the tension sensor, the tension sensor is connected to the chuck guide frame and the chuck, and the transverse shearing device is composed of a horizontal loading bracket, The horizontal moving guide rail, the shearing servo cylinder and the shearing attachment are composed of a horizontal moving guide rail on the horizontal loading bracket, and the shearing attachment, the shearing sensor and the shearing servo cylinder are connected and assembled in sequence. The pulley on the tool and the moving guide rail mounted on the horizontal moving bracket are fixed above the horizontal moving bracket. The tension sensor and shear sensor are connected to the main engine of the control device through wires, and the vertical servo actuator is connected to the hydraulic oil source of the control device. connected.

The utility model has a novel and reasonable structure, good effect, and increases the working range of its measurement. The test device can carry out tensile testing of anchor rods, mechanical tests of supporting components, shear tests of anchor rods (cables) and anchors, and composite stress ( Tension-shear action) Anchor (cable) and anchor body mechanical performance testing and other scientific research activities; the test device measures the force through a high-precision load sensor, and the test process is controlled by a special control system, which is imported into the computer through the data line to display the test force and test curve. , automatically process the test data according to the requirements of the test method; at the same time, it can display a variety of test curves: test force-displacement, test force-time, test force-displacement (deformation), etc. It is a great innovation of comprehensive testing device for mechanical properties of materials.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the front view of Fig. 1 of the utility model.

Fig. 3 is a side view of Fig. 1 of the present utility model.

Fig. 4 is a top view of Fig. 1 of the present utility model.

Fig. 5 is a perspective view of the transverse shear device (anchor rod (cable) and anchor shear test device) of the present invention.

Fig. 6 is a perspective view of the vertical loading device (bolt tension detection and support member mechanics test device) of the present utility model.

Fig. 7 is a perspective view of the control device of the present invention.

detailed description

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

Given by Fig. 1-7, the utility model comprises vertical loading device, lateral shearing device and control device, and vertical loading device comprises the rigid loading frame that base 15, upper beam 2 and four columns 4 constitute, base 15 and upper The beams 2 are supported and connected by four columns 4, the vertical servo actuator 1 is placed on the upper beam 2, the piston rod of the vertical servo actuator 1 is connected to the tensile sensor 3, and the tensile sensor 3 is connected to the chuck guide frame 5 and chuck 6, the tensile sensor 3 directly tests the vertical test force, which is used for the tension of the anchor rod (cable) assembly and the mechanical test of the support member; the transverse shear device consists of a horizontal loading bracket 21, a horizontal moving guide rail 20, The shearing servo cylinder 19 and the shearing attachment 17 are formed, the horizontal loading bracket 21 is provided with a horizontal moving guide rail 20, the shearing attachment 17, the shearing sensor 18 and the shearing servo cylinder 19 are sequentially connected and assembled together, and the moving guide rail 20 Fixed on the top of the horizontal mobile support 21, the pulley 23 can slide on the mobile guide rail 20, the tension sensor 3 and the shear sensor 18 are connected to the main frame 25 of the control device through wires, and the vertical servo actuator 1 is connected to the control device. The hydraulic oil source 26 is connected.

In order to ensure the effect of use, the height of the vertical loading device (that is, the tensile testing device for the anchor rod and the mechanical testing device for the support member) is 4270mm, the length is 3200mm, and the width is 1075mm. The model of the vertical servo actuator 1 is It is WAW-1500/1000J, capable of providing a maximum tensile force of 1000kN and a maximum compressive force of 1500kN; the maximum distance between tensile anchor components is 1500mm, and the test speed range is 0.5-100mm/min; the chuck guide frame 5 and chuck 6 are located on four The inside of a column 4, to ensure that the chuck 6 can move in the vertical direction, the size of the chuck 6 is 257mm in thickness, 600mm in height, and 750mm in length; the distance between the nearest parts of the two chucks 6 under the maximum tensile range is 1200mm; the base 15 is located at the bottom of the four uprights 4, and the size is 320mm in height, 300mm in thickness, and 3200mm in length, and two stretching accessories 7 are arranged on the chuck 6.

Both sides of the base 15 of the vertical loading device are provided with stoppers 14, and the size of the stoppers 14 is 170 mm in height, 210 mm in length, and 170 mm in width; the side of the stopper 14 away from the four columns 4 is provided with a backing plate on the base 15 12. The height of the backing plate 12 is 1820mm, and the length is 3200mm; between the stoppers 14, there is an arc body with three sections of U-shaped steel 10 connected by two U-shaped steel clamps 9 or four sections of U-shaped steel 10 connected by three U-shaped steel clamps 9 , the highest point of the arc body is connected with a compression accessory 8, and the U-shaped steel 10 is provided with a limit block 13 located at the upper left and upper right parts of the backing plate 12, and arranged according to a certain arc, the size is 85mm in diameter and 170mm in length ; The maximum span of U-shaped steel 10 (support component test part) is 2860mm, and the height is 1500mm; The end of the guide rail 20 is moved horizontally, that is, below the chuck 6, so that the corresponding compressive performance of the pallet can be measured.

The transverse shearing device (i.e. the anchor rod (cable) and the anchor shear test device) has a height of 1100mm, a length of 1800mm, and a width of 860mm; the shear servo cylinder 19 can provide the maximum transverse shear test force 1000kN, the test speed is 0.5-100 mm/min; the shear sensor 18 is fixed inside the shear attachment 17, the shear sensor 18 is connected with the shear servo cylinder 19, and pulleys 23 are installed on both sides of the transverse shear device, each side There are two pulleys 23, and the pulleys 23 are placed in the horizontal movement guide rail 20 fixed on the horizontal movement support 21, so that the horizontal movement on the horizontal movement support can be realized; the test part composed of the anchor body 22 and the anchor rod (cable) 16 It is fixed by shearing attachment 17.

The control device is 1100mm high, 1500mm long, and 600mm wide, including a main engine 25, a hydraulic oil source 26, and a control cabinet 27, which is to combine a computer 24 for data processing and a hydraulic oil source 26 that provides power on the control cabinet 27. The inside of control cabinet 27 is placed with main frame 25 and hydraulic oil source 26, and main frame 25 and hydraulic oil source 26 all link to each other with display 24 through lead wire, control tensile test imposed by main frame 25, display 24, hydraulic oil source 26 The tensile force, the pressure applied by the mechanical test of the support member, and the shear force applied by the anchor rod (cable) and the anchor body. At the same time, the host 25 and the display 24 can record the detected data and draw the corresponding performance curve.

The working condition of the utility model is: when carrying out the comprehensive test of the mechanical properties of the mine support material, the whole device is first fixed on the ground which has been specially treated; the bolt tensile test device is to pass the vertical servo actuator 1 Bolts are fixed above the upper beam 2, and provide support for the vertical servo actuator 1 and the upper beam 2 through the column 4. The tension sensor 3 and the chuck 6 are linked through the chuck guide frame 5, and the chuck 6 is in the Under the joint action of the vertical servo actuator 1 and the tensile sensor 3, the movement in the vertical direction can be realized. When the anchor rod 11 is fixed in position by the chuck 6 and the tensile attachment 7, the tensile resistance of the anchor rod 11 can be realized. Detection, the vertical displacement measurement range is 500mm; the supporting member mechanical test device is when three sections of U-shaped steel 10 are connected by two U-shaped steel clamps 9 or four sections of U-shaped steel 10 are connected by three U-shaped steel clamps 9, and the support plate 12 1. The position of the limit block 13 and the stopper 14 is fixed, and the chuck 6 provides vertical pressure to the U-shaped steel through the compression attachment 8, so that the mechanical test of the support member can be realized, and the U-shaped steel 10 and the U-shaped steel clamp can be detected. 9, measure the performance of U-shaped steel 10 and U-shaped steel clamp 9 at the same time, in addition, place the anchor pallet on the end of the horizontally moving guide rail 20, that is, under the chuck 6, and measure the corresponding compression resistance of the pallet Performance: Anchor rod (cable) and anchor body shear test device, the prepared anchor body 22 and anchor rod (cable) 16 are fixed by shear attachment 17, and shear sensor 18 is in shear servo cylinder 19 Under the action of the pulley 23, it can move horizontally on the horizontal moving guide rail 20. At this time, the upper part and the lower part of the shearing attachment 17 are fixed, and the middle part can be under the action of the shearing servo cylinder 19. Realize the movement in the horizontal direction, and start the shear servo cylinder 19, so as to provide the shear force in the horizontal direction in the middle of the test block composed of the anchor body 22 and the anchor rod (cable) 16, and realize the anchor rod (cable) 16 and the anchorage The shear test of the body 22, the whole shear test device provides support force through the horizontal loading bracket 21, and the lateral displacement measurement range is 100mm; The mechanical performance testing device is to fix the position of the anchor rod (cable) 16 in the test member composed of the anchor body 22 and the anchor rod (cable) 16 through the chuck 6 and the tensile attachment 7, and the anchor rod (cable) 16 passes through the vertical The servo actuator 1 applies a vertical pulling force, the anchor 22 uses the shear attachment 17 to fix the position, and the anchor 22 applies a horizontal shearing force through the shearing servo cylinder 19, so as to achieve composite stress (tension-shear effect) Anchor rod (cable) and anchor body mechanical performance testing; the control system is to combine the computer used for data processing and the hydraulic oil source 26 providing power on the control cabinet 27; wherein, the host computer 25 and the hydraulic oil source 26 are located in the control cabinet 27 Inside, the computer composed of host 25 and display 24 is used to control the tensile force applied by the tensile test, the pressure applied by the mechanical test of the support member, and the shear force applied by the anchor rod (cable) and the anchoring body, At the same time, the computer can record the detected data and draw the corresponding performance curve, so as to achieve the performance detection of the corresponding test specimen.

The value of the test force detected by the shear sensor 18 is imported to the computer through the data line, which can display various test data, draw test force-time curves, and automatic data processing of the curves; it has complete file operation and data storage functions, and has complete Advanced safety protection device; when the test force exceeds the maximum test force of each gear, overload protection and system unloading; when the piston displacement reaches the front and rear limit positions, stroke protection and oil pump motor stop.

The working principle of the utility model is: after adding the anchor rod (cable) 11 and the limit block 13 in the stretching attachment 7 to fix the supporting member U-shaped steel or adding the anchor 22 in the shearing attachment 17, by stretching The force borne by the sensor 3 or the shear sensor 18 is processed and recorded by the computer to carry out comprehensive testing of the mechanical properties of the mine support material. Through multiple observations, records and analysis of the data of the dynamometer, the corresponding roadway Mechanical properties of supporting materials.

The utility model has a novel and reasonable structure and good effect, and expands its measurement range, and can carry out tensile testing of anchor rods, mechanical tests of supporting components, shearing tests of anchor rods (cables) and anchoring bodies, and composite stress (tension-shear action) ) Anchor rod (cable) and anchor body mechanical performance testing and other scientific research activities; the test device measures the value of the force through a high-precision load sensor, uses a special control system to control the test process, and imports it into the computer to display the value of the test force and the test curve According to the requirements of the test, the test data can be automatically processed, and various test curves such as test force-displacement, test force-time, test force-displacement (deformation) can be displayed at the same time. It is a great innovation of performance comprehensive testing device, which has good economic and social benefits.

Claims (5)

1. a kind of mine support material mechanical performance comprehensive test device, including vertical loading device, lateral shear device and control Device processed, it is characterised in that the rigidity loading that vertical loading device includes base (15), entablature (2) is formed with four columns (4) Framework, supported and connected by four columns (4) between base (15) and entablature (2), vertical servo actuator (1) is positioned over entablature (2) on, the piston rod connection stretch sensor (3) of vertical servo actuator (1), stretch sensor (3) connecting clip leading truck (5) and chuck (6), lateral shear device by horizontal addload support (21), move horizontally guide rail (20), shearing servo-cylinder (19) (17) are attached with shearing to form, horizontal addload support (21), which is provided with, moves horizontally guide rail (20), and shearing attaches (17), shearing passes Sensor (18) and shearing servo-cylinder (19) are sequentially connected and fitted together, and moving guide rail (20), which is fixed on, moves horizontally support (21) top, pulley（23）Can be in moving guide rail（20）Enterprising line slip, stretch sensor (3), shear sensors (18) It is connected through wire with the main frame (25) of control device, vertical servo actuator (1) is connected with the hydraulic oil source (26) of control device.

2. mine support material mechanical performance comprehensive test device according to claim 1, it is characterised in that described hangs down It is 4270mm, length 3200mm, width 1075mm to the height of loading device, the model of its vertical servo actuator (1) For WAW-1500/1000J, using the teaching of the invention it is possible to provide maximum stretching force 1000kN, maximum compression 1500kN；Stretch maximum spacing 1500mm, test speed scope are 0.5-100mm/min；Chuck leading truck (5) and chuck (6) are interior positioned at four columns (4) Portion, to ensure that chuck (6) can realize the movement in vertical direction, the size of chuck (6) is thickness 257mm, height 600mm, Length 750mm；The nearest position of two chucks (6) distance under maximum tension range is 1200mm；Base (15) is located at four The bottom of root post (4), size are height 320mm, thickness 300mm, length 3200mm, and it is attached that chuck (6) is provided with two stretchings Have (7).

3. mine support material mechanical performance comprehensive test device according to claim 1, it is characterised in that described hangs down Block (14) is provided with to base (15) both sides of loading device, and block (14) size is height 170mm, length 210mm, width 170mm；Block (14) side away from four columns (4) is provided with backup plate (12) on base (15), backup plate (12) height 1820mm, Length 3200mm；Connected between block (14) by two U-shaped steel clips (9) provided with three sections of U-shaped steels (10) or four sections of U-shaped steels (10) arc body connected by three U-shaped steel clips (9), arc body peak are connected with compression and attached (8), U-shaped steel (10) The limited block (13) positioned at the upper left position of backup plate (12) and upper right position is provided with, and is arranged by certain radian, size is Diameter 85mm, length 170mm；The maximum span of U-shaped steel (10) is 2860mm, height 1500mm.

4. mine support material mechanical performance comprehensive test device according to claim 1, it is characterised in that described horizontal stroke To shear, its height is 1100mm, length 1800mm, width 860mm；Shearing servo-cylinder (19) can be provided most Big transverse shearing test power 1000kN, test speed is 0.5-100 mm/min；Shearing, which attaches, is fixed with shearing sensing in (17) Device (18), shear sensors (18) are connected with shearing servo-cylinder (19), and lateral shear device both sides are equipped with pulley（23）, per side There are two pulleys（23）, pulley (23), which is placed in be fixed on, moves horizontally moving horizontally in guide rail (20) on support (21), anchoring Clipped attach (17) of tested parts of body (22) and anchor pole (16) composition are fixed.

5. mine support material mechanical performance comprehensive test device according to claim 1, it is characterised in that described control The high 1100mm of device, long 1500mm, wide 600mm processed, including main frame (25), hydraulic oil source (26) and switch board (27), switch board (27) inside is placed with main frame (25) and hydraulic oil source (26), and main frame (25) is with hydraulic oil source (26) through wire and display (24) it is connected.