Mining fan operation detection device

Abstract

The invention discloses a mining fan operation detection device, which belongs to the technical field of fan detection and comprises a base table and a tool table. A movable shielding cover and a fixed shielding cover are arranged on the left side and the right side of the base table respectively, a stroke multiplication type synchronous connecting pipe shielding mechanism is arranged on the base table, the movable end of the stroke multiplication type synchronous connecting pipe shielding mechanism is fixedly connected with the movable shielding cover and the tool table, and a multi-measuring-point air speed measuring mechanism is arranged at the air outlet end of the air outlet pipeline. By means of the mode, after the draught fan is in place on the tool table, the synchronous butt joint effect of the air inlet pipeline, the draught fan, the air outlet pipeline, the movable shielding cover and the fixed shielding cover can be achieved through driving of the driving cylinder, the draught fan can be conveniently detected, and the detection efficiency is improved. And the fan is preliminarily separated from the external environment, so that the adverse effect of noise generated by long-time operation of the fan during testing on the body health of surrounding operators is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fan detection, and in particular to an operation detection device for a mining fan. Background Art

[0002] Mining fans are ventilation equipment specially designed for underground working environments such as mines and tunnels. They are mainly used to provide fresh air, remove harmful gases and improve the working environment.

[0003] Chinese patent CN210484155U discloses an axial flow fan test system including a test air chamber, an air inlet pipe, an air outlet pipe and a supplementary air fan; the test air chamber is a box with openings at both ends, and the cross-section of the test air chamber is larger than the cross-section of the air inlet pipe and the air outlet pipe; the air inlet pipe and the air outlet pipe are connected to the two ends of the test air chamber through a reducing flange, and the test air chamber, the air inlet pipe and the air outlet pipe are all fixed on the frame; the test system controls the coordination of various mechanisms through a PLC control system, which effectively facilitates the test process of the axial flow fan, but the test system still has the following problems:

[0004] 1. Axial flow fans used in mines are usually large in size and produce a lot of noise during operation. When testing the fans, they need to run for a long time, which can easily cause harm to the surrounding workers.

[0005] 2. The air outlet size and air outlet flow rate of large mining fans are relatively large, and it is inconvenient to measure the wind speed at different points.

[0006] Based on this, the present invention designs a mining fan operation detection device to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a mining fan operation detection device.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A mining fan operation detection device comprises a base platform and a tooling platform;

[0010] The left and right sides of the base are respectively provided with a movable shielding cover and a fixed shielding cover, and the movable shielding cover can move horizontally along its length direction;

[0011] A fixing frame is fixedly installed in both the movable shielding cover and the fixed shielding cover, an air inlet duct is fixedly installed on the fixing frame of the movable shielding cover, and an air outlet duct is fixedly installed on the fixing frame of the fixed shielding cover;

[0012] A noise tester is arranged on the top of the movable shielding cover and the fixed shielding cover;

[0013] A workbench is provided between the movable shielding cover and the fixed shielding cover, and positioning angle iron blocks are fixedly installed at the four corners of the upper end of the workbench, and the four positioning angle iron blocks cooperate to position the fan;

[0014] The base is provided with a stroke multiplication type synchronous pipe shielding mechanism, the movable end of the stroke multiplication type synchronous pipe shielding mechanism is fixedly connected with the movable shielding cover and the workbench, and the stroke multiplication type synchronous pipe shielding mechanism is used to synchronize the air outlet end of the air inlet duct with the air inlet end of the fan, the air inlet end of the air outlet duct with the air outlet end of the fan, and the movable shielding cover with the fixed shielding cover.

[0015] The air outlet end of the air outlet duct is provided with a multi-point wind speed measuring mechanism;

[0016] The middle of the air inlet duct and the air outlet duct are both provided with an air volume adjustment mechanism, and the air volume of the air inlet duct and the air volume of the air outlet duct are changed to test whether the current change of the fan meets the set value;

[0017] The workbench is also fixed with a multi-dimensional vibration testing mechanism for performing vibration testing on the running fan.

[0018] Furthermore, the stroke multiplication type synchronous pipe shielding mechanism includes a first linear slide rail, a second linear slide rail, a connecting cross bar, a U-shaped frame, a cross shaft, an upper rack, a lower rack, a transmission gear and a drive cylinder, the first linear slide rail and the second linear slide rail are fixedly mounted on the base, the tooling table and the connecting cross bar are both limitedly slidably connected with the first linear slide rail through a slider, and the tooling table and the connecting cross bar are fixedly connected, so that the tooling table and the connecting cross bar move synchronously on the first linear slide rail;

[0019] The movable shielding cover is connected to the second linear slide rail in a limited sliding manner through a sliding block;

[0020] The driving cylinder is fixedly installed on the upper end of the base, and the output end of the driving cylinder is fixedly connected to the tooling table;

[0021] Two upper racks are fixedly mounted on the lower end of the fixing frame of the movable shielding cover, and two lower racks are fixedly mounted on the upper end of the base and correspond to the upper racks one by one; the transmission gear is located between the upper rack and the lower rack, and the transmission gear is meshed and connected with the upper rack and the lower rack; the two ends of the horizontal axis are respectively rotatably connected with the two transmission gears; the U-shaped frame is fixedly mounted on the connecting cross bar, and the U-shaped frame is fixedly connected to the middle part of the horizontal axis.

[0022] Furthermore, the multi-point wind speed measurement mechanism includes an R-axis adjustment mechanism and a linear module. The R-axis adjustment mechanism is installed at the air outlet end of the air outlet duct, and the linear module is fixedly installed at the movable end of the R-axis adjustment mechanism. The movable end of the linear module is fixedly installed with a mounting frame; a wind speed measurement component is arranged on the mounting frame.

[0023] Furthermore, the R-axis adjustment mechanism includes a bracket, a servo motor, a driving gear and a ring gear. The bracket is fixedly connected to the base, the servo motor is fixedly installed on the top of the bracket, and the driving gear is fixedly installed on the output end of the servo motor; the ring gear is rotatably connected to the air outlet end of the air outlet duct through a bearing, and the ring gear is meshingly connected to the driving gear.

[0024] Furthermore, the wind speed measurement assembly includes a wind shield, a guide rod, a first spring, a transverse movement block, an upper electrode sheet, a lower electrode sheet, an adjusting screw and a support block, the support block is fixedly mounted on the upper end of the mounting frame, the adjusting screw is rotatably connected to the support block through a bearing; the upper end of the transverse movement block is threadedly connected to the adjusting screw through a threaded sleeve, and the side wall of the transverse movement block is fitted and slidably connected to the mounting frame, so that the transverse movement block can move axially along the air outlet duct;

[0025] The two ends of the transverse moving block are symmetrically limited and slidably connected with guide rods, and an end of the guide rod close to the air outlet duct is fixedly installed with an air cover; a first spring is sleeved on the outer side of the guide rod, and the two ends of the first spring are respectively fixedly connected with the air cover and the transverse moving block;

[0026] The upper electrode sheet is fixedly mounted on the lower end of the mounting frame, and the upper end of the wind shield is fixedly mounted with a lower electrode sheet matched with the upper electrode sheet.

[0027] Furthermore, the air volume regulating mechanism includes a shielding component and a driving component. The shielding component is arranged on the inner wall of the air inlet duct or the air outlet duct, and is used to control the amount of air that can pass through the duct per unit time; the driving component is arranged on the outer wall of the air inlet duct or the air outlet duct, and is used to drive the shielding component to shield the inside of the duct.

[0028] Furthermore, the shielding assembly includes a baffle, a concave portion, a convex portion, a support frame and a rotating shaft, and the support frame is fixedly connected to the inner wall of the air inlet duct or the air outlet duct; a plurality of baffles are distributed on the outer side of the support frame in a circular array with equal spacing;

[0029] One end of the baffle is rotatably connected to the support frame through a bearing, and the other end of the baffle is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the side wall of the air inlet duct or the air outlet duct and penetrates the side wall;

[0030] The two sides of the baffle are respectively provided with a concave portion and a convex portion, so that the cross section forms a "Z" shape, and the concave portions and convex portions of adjacent baffles overlap each other.

[0031] Furthermore, the driving assembly includes a swing block, a slide groove, a sliding pin, an annular frame and a servo push cylinder; the swing block is fixedly installed at one end of the rotating shaft outside the air inlet duct or the air outlet duct; the inner wall of the annular frame is limitedly slidably connected to the outer wall of the air inlet duct or the air outlet duct, so that the annular frame can rotate radially along the air inlet duct or the air outlet duct; a slide groove is provided on the swing block, and a sliding pin is limitedly slidably connected in the slide groove, and all the sliding pins are fixedly connected to the annular frame; one end of the servo push cylinder is hinged to the fixed frame, and the other end of the servo push cylinder is hinged to the annular frame.

[0032] Furthermore, the multi-dimensional vibration testing mechanism includes a plurality of axial vibration testing assemblies arranged on a fixed shielding cover for testing the axial vibration of the fan and radial vibration testing assemblies for testing the radial vibration of the fan, and the structures of the axial vibration testing assemblies and the radial vibration testing assemblies are the same.

[0033] Furthermore, the axial vibration test assembly and the radial vibration test assembly each include a fixed support frame, a slide bar, a second spring, a bump and a test head, the fixed support frame is fixedly connected to the workbench, and the slide bar is limitedly slidably connected to the fixed support frame; a test head for abutting against the outer casing of the fan is provided at one end of the slide bar close to the fan, and a bump is fixedly installed at the other end of the slide bar; the second spring is sleeved on the outside of the slide bar, and the two ends of the second spring are respectively fixedly connected to the bump and the fixed support frame;

[0034] The sliding rod of the axial vibration test assembly extends along the axial direction of the fan, and the sliding rod of the radial vibration test assembly extends along the radial direction of the fan.

[0035] Compared with the prior art, the present invention has the following beneficial effects: 1. When the movable shielding cover and the fixed shielding cover are separated, the workbench is completely exposed to the outside, and the surrounding operators can move the large-scale fan used in the mine to the workbench through equipment such as a hoisting frame or a forklift, which has a large operating space and a wide operating field, and effectively facilitates the disassembly, assembly and placement of the workbench;

[0036] When the fan is in place on the workbench, the synchronous docking effect of the air inlet duct, fan and outlet duct, as well as the movable shielding cover and the fixed shielding cover can be achieved through a single drive of the drive cylinder. This not only facilitates the inspection of the fan, but also initially separates the fan from the external environment, avoiding the adverse effects of noise generated by the long-term operation of the fan during testing on the health of surrounding operators.

[0037] 2. The servo motor can drive the gear ring to rotate by driving the gear, and the linear module can drive the mounting frame to move along the radial servo of the air outlet duct. The servo motor and the linear module can accurately control the mounting frame to move to any point of the air outlet of the air outlet duct, and obtain accurate data of wind speed at different points. At the same time, if the lower electrode sheet contacts and conducts with the upper electrode sheet, the operator can intuitively see the qualified wind speed indicator light on the outside of the movable shielding cover and the fixed shielding cover.

[0038] 3. By controlling the piston stroke of the servo push cylinder, the rotation angle of the baffle can be accurately controlled; when the fan is running, the air volume changes of the air inlet duct and the air outlet duct can be controlled respectively to monitor whether the current change of the fan meets the set value, and the performance of the fan can be tested in conjunction with the air volume adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A three-dimensional diagram of a mining fan operation detection device of the present invention;

[0041] Figure 2 This is a three-dimensional diagram of a mining fan operation detection device of the present invention after hiding a movable shielding cover and a fixed shielding cover;

[0042] Figure 3 for Figure 2 A front view of

[0043] Figure 4 It is a right view of a mining fan operation detection device of the present invention;

[0044] Figure 5 A partial stereoscopic view of a mining fan operation detection device of the present invention Figure 1 ;

[0045] Figure 6 A partial three-dimensional view of a mining fan operation detection device of the present invention Figure 2 ;

[0046] Figure 7 is a three-dimensional diagram of the wind speed measurement assembly of the present invention;

[0047] Figure 8 for Figure 5 The enlarged view of point A in the middle;

[0048] Fig. 9A partial three-dimensional view of a mining fan operation detection device of the present invention Figure 3 ;

[0049] Fig.10 for Figure 6 The enlarged view of point B in the middle;

[0050] Fig.11 It is a structural stereogram of the baffle.

[0051] The numbers in the figure represent:

[0052] 11. Base; 11. Movable shielding cover; 12. Fixed shielding cover; 13. Air inlet duct; 14. Air outlet duct; 15. Fixed frame; 16. Positioning angle iron block; 17. Noise tester; 2. Workbench; 3. Fan; 4. Stroke multiplication type synchronous pipe shielding mechanism; 41. First linear slide; 42. Second linear slide; 43. Connecting cross bar; 44. U-shaped frame; 45. Horizontal axis; 46. Upper rack; 47. Lower rack; 48. Transmission gear; 49. Driving cylinder; 5. Multi-point wind speed measurement mechanism; 51. R-axis adjustment mechanism; 511. Bracket; 512. Servo motor; 513. Driving gear; 514. Gear ring; 52. Linear module; 53. Installation Mounting frame; 54, wind speed measurement assembly; 541, wind cover; 542, guide rod; 543, first spring; 544, transverse block; 545, upper electrode sheet; 546, lower electrode sheet; 547, adjusting screw rod; 548, support block; 6, air volume adjustment mechanism; 61, shielding assembly; 611, baffle; 612, recess; 613, convex portion; 614, support frame; 615, rotating shaft; 62, driving assembly; 621, swing block; 622, slide groove; 623, sliding pin; 624, ring frame; 625, servo push cylinder; 7, multi-dimensional vibration test mechanism; 71, fixed support frame; 72, slide rod; 73, second spring; 74, convex block; 75, test head. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0055] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 4, a mining fan operation detection device, comprising a base 10 and a tooling platform 2;

[0056] The left and right sides of the base 10 are respectively provided with a movable shielding cover 11 and a fixed shielding cover 12, and the movable shielding cover 11 can move horizontally along its length direction;

[0057] A fixing frame 15 is fixedly installed in both the movable shielding cover 11 and the fixed shielding cover 12. An air inlet duct 13 is fixedly installed on the fixing frame 15 of the movable shielding cover 11, and an air outlet duct 14 is fixedly installed on the fixing frame 15 of the fixed shielding cover 12.

[0058] A noise tester 17 is provided on the top of the movable shielding cover 11 and the fixed shielding cover 12;

[0059] A workbench 2 is provided between the movable shielding cover 11 and the fixed shielding cover 12. Positioning angle iron blocks 16 are fixedly installed at the four corners of the upper end of the workbench 2. After the four positioning angle iron blocks 16 cooperate to position the fan 3, the housing of the fan 3 is fixed to the workbench 2 by fasteners.

[0060] The base 10 is provided with a stroke multiplication type synchronous pipe shielding mechanism 4, the movable end of which is fixedly connected to the movable shielding cover 11 and the workbench 2, and the stroke multiplication type synchronous pipe shielding mechanism 4 is used to synchronize the air outlet end of the air inlet duct 13 with the air inlet end of the fan 3, the air inlet end of the air outlet duct 14 with the air outlet end of the fan 3, and the movable shielding cover 11 and the fixed shielding cover 12.

[0061] The air outlet end of the air outlet duct 14 is provided with a multi-point wind speed measuring mechanism 5;

[0062] The middle of the air inlet duct 13 and the air outlet duct 14 are both provided with an air volume adjustment mechanism 6, which tests whether the current change of the fan 3 meets the set value by changing the air inlet volume of the air inlet duct 13 and the air outlet volume of the air outlet duct 14;

[0063] A multi-dimensional vibration testing mechanism 7 for performing vibration testing on the running fan 3 is also fixed on the workbench 2 .

[0064] In the present invention, initially, the movable shielding cover 11 and the fixed shielding cover 12 are separated to expose the workbench 2. At this time, the fan 3 can be conveniently transferred to the workbench 2 by a hoisting device or a forklift. After the base of the fan 3 housing is positioned by four positioning angle iron blocks 16, the housing of the fan 3 is fixed to the workbench 2 by fasteners.

[0065] After the fan 3 is in place, the stroke multiplication type synchronous pipe shielding mechanism 4 is started, and the stroke multiplication type synchronous pipe shielding mechanism 4 drives the tooling platform 2 to move in the direction of the air outlet duct 14, and at the same time drives the movable shielding cover 11 to move in the direction of the fixed shielding cover 12 at a faster speed than the tooling platform 2, so that the air outlet end of the air inlet duct 13 is docked with the air inlet end of the fan 3, and the air inlet end of the air outlet duct 14 is docked with the air outlet end of the fan 3, and the movable shielding cover 11 and the fixed shielding cover 12 are closed, which not only completes the docking operation of the air inlet duct 13, the air outlet duct 14 and the fan 3 at one time, but also separates the air inlet duct 13, the air outlet duct 14 and the fan 3 from the outside, effectively reducing the impact of the operating noise of the fan 3 on the staff;

[0066] Then, the fan 3 is started, and the air volume adjustment mechanism 6 on the air inlet duct 13 and the air outlet duct 14 respectively adjusts the air volume of the fan 3. The noise tester 17 monitors the operating noise of the fan 3 in real time, and tests the current change and noise change of the fan 3 at different air volume and air outlet to determine whether they meet the set value;

[0067] The multi-point wind speed measuring mechanism 5 at the air outlet of the air outlet duct 14 monitors the wind speed change of the fan 3 in real time, and continuously adjusts the test points to achieve a full range of testing of the wind speed at the air outlet of the fan 3, thereby improving the uniformity, stability and reliability of the test results;

[0068] The multi-dimensional vibration testing mechanism 7 monitors the vibration value of the fan 3 casing in real time, and detects the change of the vibration value of the fan 3 from multiple angles, so as to more accurately determine whether the vibration of the fan 3 meets the set value.

[0069] Rubber sealing gaskets are provided on the close surfaces of the movable shielding cover 11 and the fixed shielding cover 12, and the flanges where the air inlet duct 13 and the air outlet duct 14 abut against the fan 3 to improve the sealing performance.

[0070] Embodiment 2: In some embodiments, Figure 3 and Figure 5 As shown, as a preferred embodiment of the present invention, the stroke multiplication type synchronous pipe shielding mechanism 4 includes a first linear slide rail 41, a second linear slide rail 42, a connecting cross bar 43, a U-shaped frame 44, a horizontal shaft 45, an upper rack 46, a lower rack 47, a transmission gear 48 and a drive cylinder 49. The first linear slide rail 41 and the second linear slide rail 42 are fixedly mounted on the base 10, and the tooling table 2 and the connecting cross bar 43 are both limitedly slidably connected with the first linear slide rail 41 through a slider, and the tooling table 2 and the connecting cross bar 43 are fixedly connected, so that the tooling table 2 and the connecting cross bar 43 move synchronously on the first linear slide rail 41;

[0071] The movable shielding cover 11 is connected to the second linear slide rail 42 through a sliding block in a limited sliding manner;

[0072] The driving cylinder 49 is fixedly mounted on the upper end of the base 10, and the output end of the driving cylinder 49 is fixedly connected to the tooling table 2;

[0073] Two upper racks 46 are fixedly mounted on the lower end of the fixing frame 15 of the movable shielding cover 11, and two lower racks 47 are fixedly mounted on the upper end of the base 10 and correspond to the upper racks 46 one by one; a transmission gear 48 is located between the upper rack 46 and the lower rack 47, and the transmission gear 48 is meshed and connected with the upper rack 46 and the lower rack 47; both ends of the horizontal shaft 45 are rotatably connected with the two transmission gears 48 respectively; a U-shaped frame 44 is fixedly mounted on the connecting cross bar 43, and the U-shaped frame 44 is fixedly connected with the middle part of the horizontal shaft 45;

[0074] In the present invention, after the fan 3 is in place on the workbench 2, the drive cylinder 49 drives the workbench 2 and the connecting cross bar 43 to move horizontally to the right under the limiting action of the first linear slide rail 41, so that the U-shaped frame 44 drives the horizontal axis 45 to move horizontally to the right, and the transmission gear 48 is driven by the lower rack 47 to rotate, so that the transmission gear 48 drives the movable shielding cover 11 and the air inlet duct 13 to move horizontally to the right at twice the moving speed of the workbench 2 through the upper rack 46, and finally the air outlet end flange of the fan 3 is tightly fitted with the air inlet end flange of the air outlet duct 14, and the air inlet end flange of the fan 3 is tightly fitted with the air outlet end flange of the air inlet duct 13, and at the same time, the movable shielding cover 11 and the near end of the fixed shielding cover 12 are tightly fitted, and the sealing effect of the joint is achieved with the cooperation of the rubber sealing pad layer;

[0075] When the movable shielding cover 11 and the fixed shielding cover 12 are separated, the workbench 2 is completely exposed to the outside, and the surrounding operators can move the large-scale mine fan 3 to the workbench 2 through a lifting frame or forklift and other equipment. The operating space is large and the operating field is wide, which effectively facilitates the disassembly, assembly and placement operations of the workbench 2; after the fan 3 is in place, the synchronous docking effect of the air inlet duct 13, the fan 3 and the air outlet duct 14, as well as the movable shielding cover 11 and the fixed shielding cover 12 can be achieved through a single drive of the driving cylinder 49, which not only facilitates the detection operation of the fan 3, but also preliminarily separates the fan 3 from the external environment, thereby avoiding the noise generated by the long-term operation of the fan 3 during the test to have an adverse effect on the health of the surrounding operators.

[0076] Embodiment 3: In some embodiments, Figure 4 , Figure 6 and Figure 7 As shown, as a preferred embodiment of the present invention, the multi-measurement point wind speed measuring mechanism 5 includes an R-axis adjustment mechanism 51 and a linear module 52, the R-axis adjustment mechanism 51 is installed at the air outlet end of the air outlet duct 14, the linear module 52 is fixedly installed at the moving end of the R-axis adjustment mechanism 51, and the moving end of the linear module 52 is fixedly installed with a mounting frame 53; the mounting frame 53 is provided with a wind speed measuring component 54;

[0077] The R-axis adjustment mechanism 51 includes a bracket 511, a servo motor 512, a driving gear 513 and a ring gear 514. The bracket 511 is fixedly connected to the base 10. The servo motor 512 is fixedly installed on the top of the bracket 511. The output end of the servo motor 512 is fixedly installed with the driving gear 513; the ring gear 514 is rotatably connected to the air outlet end of the air outlet duct 14 through a bearing, and the ring gear 514 is meshed with the driving gear 513.

[0078] The wind speed measuring assembly 54 includes a wind shield 541, a guide rod 542, a first spring 543, a transverse block 544, an upper electrode sheet 545, a lower electrode sheet 546, an adjusting screw 547 and a support block 548. The support block 548 is fixedly mounted on the upper end of the mounting frame 53. The adjusting screw 547 is rotatably connected to the support block 548 through a bearing. The upper end of the transverse block 544 is threadedly connected to the adjusting screw 547 through a threaded sleeve, and the side wall of the transverse block 544 is fitted and slidably connected to the mounting frame 53, so that the transverse block 544 can move axially along the air outlet duct 14.

[0079] The two ends of the transverse moving block 544 are symmetrically limited and slidably connected with guide rods 542, and an end of the guide rod 542 close to the air outlet duct 14 is fixedly installed with a wind cover 541; the outer side of the guide rod 542 is sleeved with a first spring 543, and the two ends of the first spring 543 are respectively fixedly connected with the wind cover 541 and the transverse moving block 544;

[0080] The upper electrode sheet 545 is fixedly mounted on the lower end of the mounting frame 53, and the upper end of the wind shield 541 is fixedly mounted with a lower electrode sheet 546 that matches the upper electrode sheet 545;

[0081] In the present invention, the servo motor 512 can drive the gear ring 514 to servo rotate by driving the gear 513, and the linear module 52 drives the mounting frame 53 to servo move along the radial direction of the air outlet duct 14. The servo motor 512 and the linear module 52 can cooperate to accurately control the mounting frame 53 to move to any point of the air outlet of the air outlet duct 14;

[0082] After the wind blows toward the wind shield 541, the wind pressure drives the wind shield 541 to move rightward along the axis of the air outlet duct 14 under the limiting effect of the guide rod 542. If the lower electrode sheet 546 on the wind shield 541 contacts the upper electrode sheet 545 on the mounting frame 53, the circuit will be turned on. At this time, the operator can directly see the qualified wind speed indicator light on the outside of the movable shielding cover 11 and the fixed shielding cover 12; then move the wind shield 541 to the next point and repeat the wind speed measurement operation;

[0083] By adjusting the screw rod 547, the position of the transverse block 544 can be changed to adjust the distance between the upper electrode sheet 545 and the lower electrode sheet 546. At different distances, the wind pressure required for the wind hood 541 to overcome the elastic force of the first spring 543 to make the circuit conductive is different, so that the operator can freely set the qualified value of the wind speed. Only when the wind speed reaches the set value can the lower electrode sheet 546 and the upper electrode sheet 545 contact to conduct the circuit, so that the qualified wind speed indicator light can light up and obtain accurate data of the wind speed at different points.

[0084] Embodiment 4: In some embodiments, Figure 6 , Figure 9-11 As shown, as a preferred embodiment of the present invention, the air volume adjustment mechanism 6 includes a shielding component 61 and a driving component 62. The shielding component 61 is arranged on the inner wall of the air inlet duct 13 or the air outlet duct 14, and the shielding component 61 is used to control the air volume that can pass through the duct per unit time; the driving component 62 is arranged on the outer wall of the air inlet duct 13 or the air outlet duct 14, and the driving component 62 is used to drive the shielding component 61 to shield the inside of the duct;

[0085] The shielding assembly 61 includes a baffle 611, a concave portion 612, a convex portion 613, a support frame 614 and a rotating shaft 615. The support frame 614 is fixedly connected to the inner wall of the air inlet duct 13 or the air outlet duct 14; a plurality of baffles 611 are distributed on the outer side of the support frame 614 in a circular array with equal spacing;

[0086] One end of the baffle 611 is rotatably connected to the support frame 614 through a bearing, and the other end of the baffle 611 is fixedly connected to the rotating shaft 615. The rotating shaft 615 is rotatably connected to the side wall of the air inlet duct 13 or the air outlet duct 14 and penetrates the side wall;

[0087] A recessed portion 612 and a convex portion 613 are respectively provided on both sides of the baffle 611, so that the cross-section of 611 forms a "Z" shape. The recessed portions 612 and convex portions 613 of adjacent baffles 611 overlap each other, so that when the pipeline is in a fully closed state, the adjacent baffles 611 are tightly combined, thereby increasing the sealing of the pipeline and preventing the baffles 611 from being easily damaged.

[0088] The driving assembly 62 includes a swing block 621, a slide groove 622, a sliding pin 623, an annular frame 624 and a servo push cylinder 625. The swing block 621 is fixedly installed at one end of the rotating shaft 615 located outside the air inlet duct 13 or the air outlet duct 14; the inner wall of the annular frame 624 is limitedly slidably connected to the outer wall of the air inlet duct 13 or the air outlet duct 14, so that the annular frame 624 can rotate along the radial direction of the air inlet duct 13 or the air outlet duct 14; a slide groove 622 is provided on the swing block 621, and a sliding pin 623 is limitedly slidably connected in the slide groove 622, and all the sliding pins 623 are fixedly connected to the annular frame 624; one end of the servo push cylinder 625 is hinged to the fixed frame 15, and the other end of the servo push cylinder 625 is hinged to the annular frame 624;

[0089] In the present invention, the annular frame 624 is pushed to slide on the outside of the air inlet duct 13 or the air outlet duct 14 by the servo push cylinder 625, and the annular frame 624 drives the sliding pin 623 to slide in the slide groove 622 of each swing block 621, so that the rotating shaft 615 drives the baffle 611 to rotate; the rotation angle of the baffle 611 can be accurately controlled by controlling the piston stroke of the servo push cylinder 625; when the baffle 611 is perpendicular to the cross section of the air inlet duct 13 or the air outlet duct 14, the baffle 611 has the smallest blocking effect on the flow of wind in the duct, and the duct is in a fully open state at this time; when the baffles 611 overlap each other to form a disc structure, the baffle 611 has the largest blocking effect on the flow of wind in the duct, and the duct is in a fully closed state at this time; when the fan 3 is running, the air volume changes of the air inlet duct 13 and the air outlet duct 14 are controlled respectively to monitor whether the current change of the fan 3 meets the set value, and the air volume adjustment mechanism 6 is cooperated to test the performance of the fan 3.

[0090] Embodiment 5: In some embodiments, Figure 2 , Figure 5 and 8 As shown, as a preferred embodiment of the present invention, the multi-dimensional vibration test mechanism 7 includes a plurality of axial vibration test assemblies arranged on the fixed shielding cover 12 for testing the axial vibration of the fan 3 and radial vibration test assemblies for testing the radial vibration of the fan 3, and the axial vibration test assemblies and the radial vibration test assemblies have the same structure;

[0091] The axial vibration test assembly and the radial vibration test assembly both include a fixed support frame 71, a slide bar 72, a second spring 73, a bump 74 and a test head 75. The fixed support frame 71 is fixedly connected to the workbench 2, and the slide bar 72 is limitedly slidably connected to the fixed support frame 71; one end of the slide bar 72 close to the fan 3 is provided with a test head 75 for abutting against the outer shell of the fan 3, and the other end of the slide bar 72 is fixedly installed with a bump 74; the second spring 73 is sleeved on the outer side of the slide bar 72, and the two ends of the second spring 73 are respectively fixedly connected to the bump 74 and the fixed support frame 71;

[0092] The slide bar 72 of the axial vibration test assembly extends along the axial direction of the fan 3, and the slide bar 72 of the radial vibration test assembly extends along the radial direction of the fan 3;

[0093] In the present invention, after the fan 3 is installed on the workbench 2, the test head 75 of the axial vibration test assembly abuts against the annular shell of the fan 3, and the test head 75 of the radial vibration test assembly abuts against the lower end support structure of the fan 3. When the fan 3 vibrates during operation, the lower slide bar 72 will continuously float on the fixed support frame 71 under the cooperation of the second spring 73 and the protrusion 74. The test head 75 monitors whether the floating stroke of the slide bar 72 meets the set value, thereby judging whether the vibration value of the fan 3 is qualified.

[0094] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mining fan operation detection device, comprising a base (10) and a tooling platform (2), characterized in that: A movable shielding cover (11) and a fixed shielding cover (12) are respectively arranged on the left and right sides of the base (10), and the movable shielding cover (11) can move horizontally along its length direction; A fixing frame (15) is fixedly installed in both the movable shielding cover (11) and the fixed shielding cover (12); an air inlet duct (13) is fixedly installed on the fixing frame (15) of the movable shielding cover (11), and an air outlet duct (14) is fixedly installed on the fixing frame (15) of the fixed shielding cover (12); A noise tester (17) is arranged on the top of the movable shielding cover (11) and the fixed shielding cover (12); A workbench (2) is provided between the movable shielding cover (11) and the fixed shielding cover (12), and positioning angle iron blocks (16) are fixedly installed at the four corners of the upper end of the workbench (2), and the four positioning angle iron blocks (16) cooperate to position the fan (3); The base (10) is provided with a stroke-multiplied synchronous pipe shielding mechanism (4), the movable end of the stroke-multiplied synchronous pipe shielding mechanism (4) is fixedly connected to the movable shielding cover (11) and the workbench (2), and the stroke-multiplied synchronous pipe shielding mechanism (4) is used to synchronize the connection and closure of the air outlet end of the air inlet duct (13) and the air inlet end of the fan (3), the air inlet end of the air outlet duct (14) and the air outlet end of the fan (3), and the movable shielding cover (11) and the fixed shielding cover (12); The air outlet end of the air outlet duct (14) is provided with a multi-point wind speed measuring mechanism (5); The middle parts of the air inlet duct (13) and the air outlet duct (14) are both provided with air volume adjustment mechanisms (6), and by changing the air volume of the air inlet duct (13) and the air volume of the air outlet duct (14), it is tested whether the current change of the fan (3) meets the set value; A multi-dimensional vibration testing mechanism (7) for performing vibration testing on the running fan (3) is also fixed on the tooling table (2).

2. The mining fan operation detection device according to claim 1 is characterized in that: The stroke multiplication type synchronous pipe shielding mechanism (4) comprises a first linear slide rail (41), a second linear slide rail (42), a connecting cross bar (43), a U-shaped frame (44), a transverse shaft (45), an upper rack (46), a lower rack (47), a transmission gear (48) and a driving cylinder (49); the first linear slide rail (41) and the second linear slide rail (42) are fixedly mounted on a base (10); the tooling table (2) and the connecting cross bar (43) are both limitedly slidably connected to the first linear slide rail (41) via a slider; and the tooling table (2) and the connecting cross bar (43) are fixedly connected, so that the tooling table (2) and the connecting cross bar (43) move synchronously on the first linear slide rail (41); The movable shielding cover (11) is connected to the second linear slide rail (42) in a limited sliding manner via a sliding block; The driving cylinder (49) is fixedly mounted on the upper end of the base (10), and the output end of the driving cylinder (49) is fixedly connected to the tooling platform (2); Two upper racks (46) are fixedly mounted on the lower end of the fixing frame (15) of the movable shielding cover (11), and two lower racks (47) are fixedly mounted on the upper end of the base (10) and correspond one to one with the upper racks (46); a transmission gear (48) is located between the upper racks (46) and the lower racks (47), and the transmission gear (48) is meshedly connected with the upper racks (46) and the lower racks (47); both ends of the transverse shaft (45) are rotatably connected with the two transmission gears (48) respectively; a U-shaped frame (44) is fixedly mounted on the connecting cross bar (43), and the U-shaped frame (44) is fixedly connected with the middle part of the transverse shaft (45).

3. The mining fan operation detection device according to claim 2 is characterized in that: The multi-measurement point wind speed measurement mechanism (5) comprises an R-axis adjustment mechanism (51) and a linear module (52); the R-axis adjustment mechanism (51) is mounted on the air outlet end of the air outlet duct (14); the linear module (52) is fixedly mounted on the movable end of the R-axis adjustment mechanism (51); a mounting frame (53) is fixedly mounted on the movable end of the linear module (52); and a wind speed measurement component (54) is arranged on the mounting frame (53).

4. The mining fan operation detection device according to claim 3 is characterized in that: The R-axis adjustment mechanism (51) comprises a bracket (511), a servo motor (512), a driving gear (513) and a ring gear (514); the bracket (511) is fixedly connected to the base (10); the servo motor (512) is fixedly mounted on the top of the bracket (511); the driving gear (513) is fixedly mounted on the output end of the servo motor (512); the ring gear (514) is rotatably connected to the air outlet end of the air outlet duct (14) via a bearing; the ring gear (514) is meshingly connected to the driving gear (513).

5. The mining fan operation detection device according to claim 4, characterized in that: The wind speed measurement assembly (54) comprises a wind shield (541), a guide rod (542), a first spring (543), a transverse block (544), an upper electrode sheet (545), a lower electrode sheet (546), an adjusting screw rod (547) and a support block (548); the support block (548) is fixedly mounted on the upper end of the mounting frame (53); the adjusting screw rod (547) is rotatably connected to the support block (548) via a bearing; the upper end of the transverse block (544) is threadedly connected to the adjusting screw rod (547) via a threaded sleeve, and the side wall of the transverse block (544) is slidably connected to the mounting frame (53), so that the transverse block (544) can move axially along the air outlet duct (14); The two ends of the transverse moving block (544) are symmetrically limited and slidably connected to guide rods (542), and an end of the guide rod (542) close to the air outlet duct (14) is fixedly mounted with an air cover (541); a first spring (543) is sleeved on the outer side of the guide rod (542), and the two ends of the first spring (543) are respectively fixedly connected to the air cover (541) and the transverse moving block (544); The upper electrode sheet (545) is fixedly mounted on the lower end of the mounting frame (53), and the upper end of the wind shield (541) is fixedly mounted with a lower electrode sheet (546) matching with the upper electrode sheet (545).

6. The mining fan operation detection device according to claim 5, characterized in that: The air volume regulating mechanism (6) comprises a shielding component (61) and a driving component (62); the shielding component (61) is arranged on the inner wall of the air inlet duct (13) or the air outlet duct (14); the shielding component (61) is used to control the amount of air that can pass through the duct per unit time; and the driving component (62) is arranged on the outer wall of the air inlet duct (13) or the air outlet duct (14); the driving component (62) is used to drive the shielding component (61) to shield the inside of the duct.

7. The mining fan operation detection device according to claim 6 is characterized in that: The shielding assembly (61) comprises a baffle (611), a recess (612), a protrusion (613), a support frame (614) and a rotating shaft (615); the support frame (614) is fixedly connected to the inner wall of the air inlet duct (13) or the air outlet duct (14); a plurality of baffles (611) are distributed on the outer side of the support frame (614) in a circular array at equal intervals; One end of the baffle (611) is rotatably connected to the support frame (614) via a bearing, and the other end of the baffle (611) is fixedly connected to the rotating shaft (615), and the rotating shaft (615) is rotatably connected to the side wall of the air inlet duct (13) or the air outlet duct (14) and penetrates the side wall; A concave portion (612) and a convex portion (613) are respectively provided on both sides of the baffle (611), so that the cross section of 611 forms a "Z" shape, and the concave portions (612) and convex portions (613) of adjacent baffles (611) overlap each other.

8. The mining fan operation detection device according to claim 7, characterized in that: The driving assembly (62) comprises a swing block (621), a slide groove (622), a sliding pin (623), an annular frame (624) and a servo push cylinder (625); the swing block (621) is fixedly installed at one end of the rotating shaft (615) located outside the air inlet duct (13) or the air outlet duct (14); the inner wall of the annular frame (624) is connected to the outer wall of the air inlet duct (13) or the air outlet duct (14) in a limited sliding manner, so that the annular frame (624) can rotate along the radial direction of the air inlet duct (13) or the air outlet duct (14); a slide groove (622) is provided on the swing block (621), and a sliding pin (623) is connected to the slide groove (622) in a limited sliding manner, and all the sliding pins (623) are fixedly connected to the annular frame (624); one end of the servo push cylinder (625) is hinged to the fixed frame (15), and the other end of the servo push cylinder (625) is hinged to the annular frame (624).

9. The mining fan operation detection device according to claim 8, characterized in that: The multi-dimensional vibration testing mechanism (7) comprises a plurality of axial vibration testing assemblies arranged on a fixed shielding cover (12) for testing the axial vibration of the fan (3) and radial vibration testing assemblies for testing the radial vibration of the fan (3), and the axial vibration testing assemblies and the radial vibration testing assemblies have the same structure.

10. The mining fan operation detection device according to claim 9, characterized in that: The axial vibration test assembly and the radial vibration test assembly both comprise a fixed support frame (71), a sliding rod (72), a second spring (73), a bump (74) and a test head (75); the fixed support frame (71) is fixedly connected to the workbench (2); the sliding rod (72) is limitedly slidably connected to the fixed support frame (71); one end of the sliding rod (72) close to the fan (3) is provided with a test head (75) for abutting against the outer casing of the fan (3); the other end of the sliding rod (72) is fixedly mounted with a bump (74); the second spring (73) is sleeved on the outer side of the sliding rod (72), and the two ends of the second spring (73) are respectively fixedly connected to the bump (74) and the fixed support frame (71); The sliding rod (72) of the axial vibration test assembly extends along the axial direction of the fan (3), and the sliding rod (72) of the radial vibration test assembly extends along the radial direction of the fan (3).

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