Detection device of mechanical interruption electromagnet for shutdown of steam turbine

Abstract

The utility model discloses a detection device of a mechanical interrupting electromagnet for shutdown of a steam turbine, and relates to the technical field of mechanical interrupting electromagnet detection. According to the main technical scheme, the device comprises a supporting plate, a bracket, a lifting mechanism and a detection mechanism, wherein the supporting plate is used for placing a mechanical interruption electromagnet; the bracket is arranged on the supporting plate; the lifting mechanism is arranged on the bracket; the detection mechanism is used for corresponding to an ejector rod of the mechanical interruption electromagnet; wherein the detection mechanism is arranged on the lifting mechanism, and the detection mechanism is used for being close to or away from the supporting plate under the action of the lifting mechanism. The lifting mechanism can drive the detection mechanism to get close to or away from the supporting plate. The height of the detection mechanism can be adjusted conveniently, so that the distance between the detection mechanism and an upper ejector rod of the mechanical interruption electromagnet is adjusted, the detection device can detect the mechanical interruption electromagnet with various armature strokes, and the universal performance of the detection device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical intercepting electromagnet detection technical field, concretely relates to a detection device for mechanical intercepting electromagnet for turbine shutdown. BACKGROUND

[0002] Mechanical intercepting electromagnet is a kind of electric appliance using the electromagnetic attraction of current-carrying core coil to control mechanical device to complete expected action.

[0003] Mechanical intercepting electromagnet needs to detect the performance of mechanical intercepting electromagnet before factory delivery.The device for detecting the performance of mechanical intercepting electromagnet in prior art is inconvenient to adjust the distance between detection device and the top rod of mechanical intercepting electromagnet, so that the detection device can only detect the mechanical intercepting electromagnet of certain specific armature stroke, greatly reduces the general performance of detection device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a detection device for mechanical intercepting electromagnet for turbine shutdown, solve the device for detecting the performance of mechanical intercepting electromagnet currently, it is inconvenient to adjust the distance between detection device and the top rod of mechanical intercepting electromagnet, so that the detection device can only detect the mechanical intercepting electromagnet of certain specific armature stroke, greatly reduces the general performance of detection device problem.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A detection device for mechanical intercepting electromagnet for turbine shutdown, including support plate, support, lifting mechanism, detection mechanism, the support plate is used to place mechanical intercepting electromagnet;The support is set up on the support plate;The lifting mechanism is set up on the support;The detection mechanism is used to correspond with the top rod of mechanical intercepting electromagnet;Wherein, the detection mechanism is set up on the lifting mechanism, and the detection mechanism is used to be close to or away from the support plate under the action of the lifting mechanism.

[0007] Further technical scheme is: the lifting mechanism includes fixed frame, sliding block, threaded rod, guide rod and adjusting handle;The fixed frame is set up on the support, and the side away from the support of the fixed frame is provided with sliding slot;The both ends of the guide rod are connected with the upper slot wall and the lower slot wall of the sliding slot respectively;The sliding block is slidably arranged on the guide rod, and the sliding block is connected with the detection mechanism;The threaded rod is screwed on the upper slot wall of the sliding slot, and the lower end of the threaded rod is rotatably connected to the sliding block;The adjusting handle is connected to the upper end of the threaded rod.

[0008] Further technical solutions are: the detection mechanism includes a sensor and an impact head; the sensor is arranged on the sliding block; the impact head is connected with the sensor; wherein the impact head is used for corresponding with the top rod of the mechanical blocking electromagnet.

[0009] Further technical solutions are: the detection mechanism further includes a digital tension meter; the digital tension meter is arranged on the support, and the digital tension meter is electrically connected with the sensor.

[0010] Further technical solutions are: the detection device further includes a voltage stabilizing power supply; the voltage stabilizing power supply is arranged on the support plate, and the output end of the voltage stabilizing power supply is used for being electrically connected with the mechanical blocking electromagnet.

[0011] Further technical solutions are: the detection device further includes a rectifier; the rectifier is arranged on the support plate; the rectifier is electrically connected with the voltage stabilizing power supply, and the output end of the rectifier is used for being electrically connected with the mechanical blocking electromagnet.

[0012] Further technical solutions are: the detection device further includes a voltage current power detector; the voltage current power detector is arranged on the support plate; the input end of the voltage current power detector is electrically connected with the output end of the rectifier; the output end of the voltage current power detector is used for being electrically connected with the mechanical blocking electromagnet.

[0013] Further technical solutions are: a containing groove is formed in the support plate; the containing groove is located directly below the detection mechanism, and the groove wall of the containing groove is used for being fitted with the tail cover side wall of the mechanical blocking electromagnet.

[0014] Further technical solutions are: the lower plate surface of the support plate is provided with a support frame; the containing groove extends from the upper plate surface of the support plate to the lower plate surface of the support plate, and the groove opening of the containing groove extends to the side wall of the support plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The lifting mechanism can drive the detection mechanism to approach or move away from the support plate. It is expected to achieve the purpose of adjusting the height of the detection mechanism, thereby adjusting the distance between the detection mechanism and the top rod of the mechanical blocking electromagnet, so that the detection device can detect mechanical blocking electromagnets with various armature strokes, thereby improving the general performance of the detection device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of a detection device for a mechanical blocking electromagnet for turbine shutdown in the embodiment;

[0018] Figure 2 This is a top view schematic diagram of the detection device for a mechanical shut-off electromagnet used for turbine shutdown in this embodiment;

[0019] Figure 3 This is a schematic diagram of the left side of the detection device for a mechanical shut-off electromagnet used for turbine shutdown in this embodiment;

[0020] Figure 4 This is a front view schematic diagram of the lifting mechanism of a detection device for a mechanical shut-off electromagnet used for turbine shutdown in this embodiment.

[0021] The attached diagram shows the markings and corresponding component names:

[0022] 1-Support plate; 2-Bracket;

[0023] 3-Lifting mechanism; 31-Fixed frame; 32-Slider; 33-Threaded rod; 34-Guide rod; 35-Adjusting handle;

[0024] 4-Detection mechanism; 41-Sensor; 42-Impact head; 5-Slide groove; 6-Digital display tensile gauge; 7-Regulated power supply; 8-Rectifier; 9-Accommodation slot; 10-Support frame; 11-Top rod; 12-Housing; 13-Tail cover; 14-Alligator clip; 15-Voltage, current and power detector. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Example 1: This example provides a detection device for a mechanical shut-off electromagnet used for turbine shutdown, such as... Figures 1-3 As shown, it includes a support plate 1, a bracket 2, a lifting mechanism 3, and a detection mechanism 4. The support plate 1 is used to place the mechanical blocking electromagnet; the bracket 2 is disposed on the support plate 1; the lifting mechanism 3 is disposed on the bracket 2; the detection mechanism 4 is used to correspond to the top rod 11 of the mechanical blocking electromagnet; wherein, the detection mechanism 4 is disposed on the lifting mechanism 3, and the detection mechanism 4 is used to move closer to or away from the support plate 1 under the action of the lifting mechanism 3.

[0027] For example, in implementation, support plate 1 is used to provide a stable support surface for placing the mechanical interruption electromagnet to be tested.

[0028] The bracket 2 is installed on the support plate 1 by means of welding, screwing or other methods.

[0029] The lifting mechanism 3 is installed on the support plate 1 by means of welding, screwing or other methods.

[0030] The detection mechanism 4 is installed on the lifting mechanism 3 by welding, screwing and the like, and is located above the upper surface of the support plate 1, so that the detection mechanism 4 can cooperate with the top rod 11 of the mechanical cut-off electromagnet on the support plate 1 to be detected, thereby achieving the purpose of detecting the performance of the mechanical cut-off electromagnet.

[0031] In use, the mechanical cut-off electromagnet to be detected is placed on the support plate 1 with the top rod 11 facing upward, and the top rod 11 of the mechanical cut-off electromagnet is aligned with the detection mechanism 4. Then, the lifting mechanism 3 is operated to drive the detection mechanism 4 to approach or move away from the top rod 11 of the mechanical cut-off electromagnet until the distance between the detection mechanism 4 and the top rod 11 of the mechanical cut-off electromagnet reaches the required distance position for detection. The lifting mechanism 3 can drive the detection mechanism 4 to approach or move away from the support plate 1, so as to adjust the height of the detection mechanism 4 and the distance between the detection mechanism 4 and the top rod 11 of the mechanical cut-off electromagnet, thereby enabling the detection device to detect mechanical cut-off electromagnets with different armature strokes and improving the versatility of the detection device.

[0032] In the above embodiment 1, the lifting mechanism 3 includes a fixing frame 31, a sliding block 32, a threaded rod 33, a guide rod 34 and an adjusting handle 35. Figure 4 As shown in the above embodiment 1, the lifting mechanism 3 includes a fixing frame 31, a sliding block 32, a threaded rod 33, a guide rod 34 and an adjusting handle 35.

[0033] Exemplarily, in the implementation process, the above lifting mechanism 3 includes a fixing frame 31, a sliding block 32, a threaded rod 33, a guide rod 34 and an adjusting handle 35.

[0034] The fixing frame 31 is installed on the support frame 2 by screwing, welding and the like, and one side of the fixing frame 31 is provided with a sliding groove 5.

[0035] The upper end of the guide rod 34 is connected to the upper groove wall of the sliding groove 5 by welding, screwing and the like. The lower end of the guide rod 34 is connected to the lower groove wall of the sliding groove 5 by welding, screwing and the like. The number of guide rods 34 is two, and the two guide rods 34 are arranged in sequence along the direction from one side of the sliding groove 5 to the other side of the sliding groove 5.

[0036] The sliding block 32 is provided with a through hole penetrating the upper end face and the lower end face of the sliding block 32, and the number of the through holes is two. Two guide rods 34 are respectively arranged in the two through holes to achieve the sliding connection of the sliding block 32 on the guide rods 34, so that the sliding block 32 can slide up and down along the guide rods 34, and the risk of rotating the sliding block 32 around the axis of the guide rods 34 is reduced.

[0037] The detection mechanism 4 is connected to the sliding block 32 by welding, screwing or the like. The detection mechanism 4 can slide up and down along the guide rods 34 with the sliding block 32, thereby achieving the purpose of moving away from or approaching the support plate 1.

[0038] The threaded rod 33 is arranged in the upper groove wall of the sliding groove 5, and the threaded rod 33 is screwed with the upper groove wall of the sliding groove 5. The lower end of the threaded rod 33 is rotatably connected to the upper end of the sliding block 32 through bearings, shaft holes or the like. When the threaded rod 33 is rotated clockwise / counterclockwise, the sliding block 32 can move up and down along the guide rods 34 under the driving of the threaded rod 33 and the limiting action of the guide rods 34, thereby driving the detection mechanism 4 to move away from or approach the support plate 1.

[0039] The adjusting handle 35 is arranged above the fixed frame 31, and the adjusting handle 35 is connected to the upper end of the threaded rod 33 by screwing, welding or the like. The adjusting handle 35 is convenient for the operator to drive the threaded rod 33 to rotate clockwise / counterclockwise.

[0040] During use, first, place the mechanical blocking electromagnet to be detected on the support plate 1 with the top rod 11 facing up, and make the top rod 11 of the mechanical blocking electromagnet face the detection mechanism 4. Second, manually rotate the adjusting handle 35 to drive the threaded rod 33 to rotate clockwise / counterclockwise. At this time, the sliding block 32 moves up and down along the guide rods 34 under the driving of the threaded rod 33 and the limiting action of the guide rods 34, thereby driving the detection mechanism 4 to move away from or approach the support plate 1. The operator can adjust the height of the detection mechanism 4 through the adjusting handle 35.

[0041] In the above embodiment 2, in this embodiment, as shown in Figure 1 Combining Figure 4 The detection mechanism 4 includes a sensor 41 and an impact head 42. The sensor 41 is arranged on the sliding block 32. The impact head 42 is connected to the sensor 41. The impact head 42 is used to correspond to the top rod 11 of the mechanical blocking electromagnet.

[0042] For example, in the implementation process, the detection mechanism 4 includes a sensor 41 and an impact head 42.

[0043] The sensor 41 can adopt a Jinuo JLBS-II S tension sensor 41. The sensor 41 is installed on the sliding block 32 by screwing, clamping, or the like.

[0044] The impact head 42 is installed at the lower end of the sensor 41 by screwing, clamping, or the like, and the lower end face of the impact head 42 is used to abut against the ejector rod 11 of the mechanical intercepting electromagnet.

[0045] In use, the mechanical intercepting electromagnet to be detected is placed on the support plate 1 with the ejector rod 11 upward, and the ejector rod 11 of the mechanical intercepting electromagnet is aligned with the detection mechanism 4. Then, the adjusting handle 35 is manually rotated to drive the threaded rod 33 to rotate clockwise / counterclockwise. At this time, the sliding block 32 moves up and down along the guide rod 34 under the driving of the threaded rod 33 and the limiting action of the guide rod 34, thereby driving the detection mechanism 4 to move away from or close to the support plate 1. Until the distance between the detection mechanism 4 and the ejector rod 11 of the mechanical intercepting electromagnet reaches the required distance position for detection. Then, the power supply of the mechanical intercepting electromagnet is turned on. At this time, the ejector rod 11 of the mechanical intercepting electromagnet moves upward and collides with the impact head 42. At the same time, the sensor 41 detects the impact force received by the impact head 42. The purpose is to achieve performance detection of the mechanical intercepting electromagnet and reduce the risk of damage to the sensor 41 caused by the direct impact of the ejector rod 11.

[0046] In the above embodiment 3, the detection mechanism 4 further includes a digital display tension meter 6, as shown in Figure 1 The digital display tension meter 6 is arranged on the support 2, and the digital display tension meter 6 is electrically connected with the sensor 41.

[0047] For example, in the implementation process, the detection mechanism 4 further includes a digital display tension meter 6. The digital display tension meter 6 can adopt an AILIGU digital display tension meter. The digital display tension meter 6 is installed on the support 2 by screwing, clamping, or the like, and the digital display tension meter 6 is electrically connected with the sensor 41 through a wire. The purpose is to display the impact force data through the digital display tension meter 6 when the sensor 41 detects the impact force received by the impact head 42, so as to facilitate the operator to view the test results during the test.

[0048] In the above embodiment 1, the detection device further includes a voltage stabilizing power supply 7, as shown in Figure 1 The voltage stabilizing power supply 7 is arranged on the support plate 1, and the output end of the voltage stabilizing power supply 7 is electrically connected with the mechanical intercepting electromagnet.

[0049] Exemplary, in the implementation process, the detection device further comprises a voltage stabilizer 7. The voltage stabilizer 7 can adopt a TND1-1.5 automatic AC voltage stabilizer. The voltage stabilizer 7 is placed on the support plate 1, the input power of the voltage stabilizer 7, and the output end of the voltage stabilizer 7 can be electrically connected with the electromagnetic coil of the mechanical blocking electromagnet through the wire.

[0050] In use, first, the mechanical blocking electromagnet to be detected is placed on the support plate 1 with the top rod 11 upward, and the top rod 11 of the mechanical blocking electromagnet is opposite to the detection mechanism 4. Then, the adjusting handle 35 is manually rotated to drive the threaded rod 33 to rotate clockwise / counter-clockwise. At this time, the sliding block 32 moves up and down along the guide rod 34 under the driving of the threaded rod 33 and the limiting action of the guide rod 34, thereby driving the detection mechanism 4 to move away from or close to the support plate 1. Until the distance between the detection mechanism 4 and the top rod 11 of the mechanical blocking electromagnet reaches the required distance position for detection. Secondly, the output end of the voltage stabilizer 7 is connected with the electromagnetic coil of the mechanical blocking electromagnet, and the voltage stabilizer 7 is turned on. At this time, the top rod 11 of the mechanical blocking electromagnet moves upward and collides with the impact head 42. At the same time, the sensor 41 detects the impact force received by the impact head 42 and transmits the impact force data to the digital display tension gauge 6 for display. The purpose is to ensure that the mechanical blocking electromagnet is always under the preset working voltage during the entire test process through the voltage stabilizer 7, thereby reducing the risk of inaccurate test results caused by voltage fluctuation.

[0051] In the above embodiment 5, the detection device further comprises a rectifier 8, as shown in the embodiment 6. Figure 1 The rectifier 8 is arranged on the support plate 1, the rectifier 8 is electrically connected with the voltage stabilizer 7, and the output end of the rectifier 8 is used for electrical connection with the mechanical blocking electromagnet.

[0052] Exemplary, in the implementation process, the detection device further comprises a rectifier 8. The rectifier 8 can adopt KBP C108, KBP06, etc. The rectifier 8 is placed on the support plate 1, the input end of the rectifier 8 is connected with the input end of the voltage stabilizer 7 through the wire, and the output end of the rectifier 8 can be connected with the electromagnetic coil of the mechanical blocking electromagnet through the wire. The alternating current is converted into direct current through the rectifier 8, so as to ensure that the mechanical blocking electromagnet is always under the preset direct current working voltage during the entire test process, thereby reducing the risk of inaccurate test results caused by voltage fluctuation.

[0053] In the embodiment 7, the detection device further comprises a voltage-current-power detector 15. The voltage-current-power detector 15 is arranged on the support plate 1. The input end of the voltage-current-power detector 15 is electrically connected with the output end of the rectifier 8. The output end of the voltage-current-power detector 15 is electrically connected with the electromagnetic coil of the mechanical blocking electromagnet.

[0054] In the embodiment, the detection device further comprises a voltage-current-power detector 15. The voltage-current-power detector 15 can be a voltage-current-power detector with the model of FLUKE 17B+. The voltage-current-power detector 15 is arranged on the support plate 8. The input end of the voltage-current-power detector 15 is electrically connected with the output end of the rectifier 8 through a wire, so as to receive the converted DC voltage and current signals from the rectifier 8. The output end of the voltage-current-power detector 15 is connected with the electromagnetic coil of the mechanical blocking electromagnet through a wire. The voltage-current-power detector 15 can accurately measure and display the voltage, current and power.

[0055] In the embodiment, the voltage-current-power detector 15 is arranged on the support plate 1. Figure 2 The crocodile clip 14 is arranged on the wire of the output end of the voltage-current-power detector 15. The crocodile clip 14 can be used by the operator to connect or disconnect the voltage-current-power detector 15 and the mechanical blocking electromagnet.

[0056] In the embodiment 8, the support plate 1 is arranged on the detection mechanism 4. Figure 1 In the embodiment, the support plate 1 is arranged on the detection mechanism 4. Figure 3 The support plate 1 is arranged on the detection mechanism 4. The accommodation groove 9 is arranged on the upper plate surface of the support plate 1. The accommodation groove 9 is arranged below the detection mechanism 4. The groove wall of the accommodation groove 9 is used to fit the side wall of the tail cover 13 of the mechanical blocking electromagnet.

[0057] In the embodiment, the upper plate surface of the support plate 1 is provided with the accommodation groove 9. The accommodation groove 9 is used to accommodate the tail cover 13 of the mechanical blocking electromagnet. The groove wall of the accommodation groove 9 is used to fit the side wall of the tail cover 13 of the mechanical blocking electromagnet. The stability of the mechanical blocking electromagnet during the test is improved, so as to reduce the risk of measurement error caused by the shaking of the mechanical blocking electromagnet. The risk of damage to the mechanical blocking electromagnet caused by the accidental sliding of the mechanical blocking electromagnet is reduced. In the embodiment 8, the support plate 1 is arranged on the detection mechanism 4.

[0058] In the embodiment, the support plate 1 is arranged on the detection mechanism 4. Figure 1 In the embodiment, the support plate 1 is arranged on the detection mechanism 4. Figure 2 The lower plate surface of the support plate 1 is provided with the support frame 10. The accommodation groove 9 extends from the upper plate surface of the support plate 1 to the lower plate surface of the support plate 1. The slot of the accommodation groove 9 extends to the side wall of the support plate 1.

[0059] In an example, the lower plate surface of the support plate 1 is connected with the support frame 10 by welding, screwing or other methods.

[0060] The accommodating groove 9 extends from the upper plate surface of the support plate 1 to the lower plate surface of the support plate 1, and is arranged on the lower plate surface of the support plate 1. The depth of the accommodating groove 9 is increased to further improve the stability of the mechanical blocking electromagnet.

[0061] The groove of the accommodating groove 9 extends to the side wall of the support plate 1.

[0062] In use, the support plate 1 is supported on the target region by the support frame 10. At this time, there is a gap between the lower plate surface of the support plate 1 and the target region. Then, the operator can hold one end of the mechanical blocking electromagnet setting top rod 11 and one end of the mechanical blocking electromagnet setting tail cover 13 with both hands, respectively. The tail cover 13 of the mechanical blocking electromagnet is pushed into the accommodating groove 9 along the groove of the accommodating groove 9 to the bottom of the accommodating groove 9, with the top rod 11 of the mechanical blocking electromagnet facing upwards, until the top rod 11 of the mechanical blocking electromagnet is located directly below the detection mechanism 4. At this time, the lower end surface of the mechanical blocking electromagnet housing 12 is attached to the upper plate surface of the support plate 1, and the side wall of the tail cover 13 of the mechanical blocking electromagnet is attached to the groove wall of the accommodating groove 9. After testing, the tail cover 13 of the mechanical blocking electromagnet is pushed out of the accommodating groove 9 along the bottom of the accommodating groove 9 to the groove of the accommodating groove 9. This is expected to facilitate the operator to push the mechanical blocking electromagnet into or out of the accommodating groove 9, and to simplify the operation process.

[0063] In an example, the detection device for the mechanical blocking electromagnet for turbine shutdown in this embodiment is used to test the performance of the mechanical blocking electromagnet as follows:

[0064] The mechanical blocking electromagnet to be detected is repeatedly powered on / off at least 5 times to ensure that the armature on the mechanical blocking electromagnet operates freely without jamming;

[0065] The mechanical blocking electromagnet to be detected is placed in the accommodating groove 9 on the support plate 1 with the top rod 11 facing upwards;

[0066] The stroke of the armature on the mechanical blocking electromagnet is adjusted to 25.4mm±0.1;

[0067] Check whether the output voltage of the voltage stabilizer 7 is consistent with the voltage label on the voltage stabilizer 7; and when the output voltage of the voltage stabilizer 7 is consistent with the voltage label on the voltage stabilizer 7, clamp the input end of the electromagnetic coil of the mechanical breaking electromagnet by the alligator clip 14 on the voltage current power detector 15, and open the switch of the voltage current power detector 15 in turn. At this time, the armature of the mechanical breaking electromagnet drives the top rod 11 to move upward to the maximum stroke position of the armature close to the impact head 42;

[0068] Rotate the adjusting handle 35 manually, so that the impact head 42 is attached to the top rod 11 of the mechanical breaking electromagnet;

[0069] Disconnect the switch of the voltage current power detector 15, and rotate the adjusting handle 35 manually, so that the impact head 42 is lowered by 1-1.5mm;

[0070] Open the switch of the voltage current power detector 15, and record the impact force, voltage, power and current at multiple time points in the power-on state. The mechanical breaking electromagnet with minimum torque not less than 260N is marked as qualified product.

[0071] Although the utility model has been described herein with reference to a number of explanatory embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope of the present application, drawings and claims, many variations and improvements can be made to the constituent components and / or layout of the subject combination layout. In addition to the variations and improvements to the constituent components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A detection device for a mechanical blocking electromagnet for a steam turbine shutdown, characterized in that, The utility model relates to a detection device for mechanical blocking electromagnet, including: Supporting plate (1) for placing mechanical blocking electromagnet; Support (2) is arranged on the supporting plate (1); Lifting mechanism (3) is arranged on the support (2); Detection mechanism (4) is used for corresponding with the top rod of mechanical blocking electromagnet; Wherein, the detection mechanism (4) is arranged on the lifting mechanism (3), and the detection mechanism (4) is used for being close to or away from the supporting plate (1) under the action of the lifting mechanism (3).

2. The detection device according to claim 1, wherein: The lifting mechanism (3) includes a fixed frame (31), a sliding block (32), a threaded rod (33), a guide rod (34) and an adjusting handle (35); The fixed frame (31) is arranged on the support (2), and the fixed frame (31) is provided with a sliding groove (5) on the side away from the support (2); Both ends of the guide rod (34) are connected to the upper groove wall and the lower groove wall of the sliding groove (5) respectively; The sliding block (32) is slidingly arranged on the guide rod (34), and the sliding block (32) is connected to the detection mechanism (4); The threaded rod (33) is screwed to the upper groove wall of the sliding groove (5), and the lower end of the threaded rod (33) is rotatably connected to the sliding block (32); The adjusting handle (35) is connected to the upper end of the threaded rod (33).

3. The detection device according to claim 2, wherein: The detection mechanism (4) includes a sensor (41) and an impact head (42); The sensor (41) is arranged on the sliding block (32); The impact head (42) is connected to the sensor (41); Wherein, the impact head (42) is used for corresponding with the top rod of mechanical blocking electromagnet.

4. The detection device according to claim 3, wherein: The detection mechanism (4) further includes a digital display tension gauge (6); The digital display tension gauge (6) is arranged on the support (2), and the digital display tension gauge (6) is electrically connected to the sensor (41).

5. The detection device according to claim 1, further comprising a voltage stabilizing power supply (7); The voltage stabilizing power supply (7) is arranged on the supporting plate (1), and the output end of the voltage stabilizing power supply (7) is electrically connected to the mechanical blocking electromagnet.

6. The detection device according to claim 5, further comprising a rectifier (8); The rectifier (8) is arranged on the supporting plate (1); The rectifier (8) is electrically connected to the voltage stabilizing power supply (7), and the output end of the rectifier (8) is electrically connected to the mechanical blocking electromagnet.

7. The detection device according to claim 6, further comprising a voltage and current power detector (15); The voltage and current power detector (15) is arranged on the supporting plate (1); The input end of the voltage and current power detector (15) is electrically connected to the output end of the rectifier (8). ​ ​ ​ The output end of the voltage-current power detector (15) is electrically connected with the mechanical blocking electromagnet.

8. The detection device according to claim 1, characterized in that: The support plate (1) is provided with a containing groove (9); The containing groove (9) is located directly below the detection mechanism (4), and the groove wall of the containing groove (9) is used for abutting against the tail cover side wall of the mechanical blocking electromagnet.

9. The detection device according to claim 8, characterized in that: The lower plate surface of the support plate (1) is provided with a support frame (10); The containing groove (9) extends from the upper plate surface of the support plate (1) to the lower plate surface of the support plate (1), and the groove opening of the containing groove (9) extends to the side wall of the support plate (1).

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