Test device and test method for hydrogen circulation pump rotor

Abstract

This invention relates to the field of testing ring pump rotors, specifically a testing device and method for hydrogen circulating pump rotors. The device includes a testing support, with testing brackets symmetrically mounted on the top of the support. A drive screw is rotatably connected between the two testing brackets, and an adjusting bracket is symmetrically threaded onto the surface of the drive screw. It also includes a testing cylinder rotatably connected to the upper part of the two adjusting brackets. This hydrogen circulating pump rotor testing device, through the coordinated use of components such as an adjusting column, an arc groove, and a marking pen, allows for greater centrifugal force generated at the centrifugal adjusting block position under the action of a diamond-shaped hinge strip. The greater the centrifugal force, the longer the distance the adjusting column moves with the marking pen. Furthermore, with the arc groove and sliding pin in cooperation, the longer the distance the adjusting column moves, the greater the rotation angle with the marking pen. The thickness of the marking line visually indicates the degree of mass imbalance at different abnormal locations, facilitating subsequent maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ring pump rotor detection, in particular to a hydrogen circulating pump rotor testing device and testing method. BACKGROUND

[0002] The rotor of a hydrogen circulating pump is a core moving component responsible for gas delivery and circulation through rotation. The rotor of a hydrogen circulating pump is usually composed of an impeller and a rotor shaft. During the production of the rotor of a hydrogen circulating pump, the rotor shaft needs to be detected to ensure the stability of the rotor during operation.

[0003] During dynamic balance testing of the rotor shaft of a circulating pump, there are two ways of sensor detection and mechanical detection. The anti-vibration and impact interference ability of the sensor during use is lower than that of mechanical detection. Therefore, the testing of some existing circulating pump rotor shafts still uses mechanical testing. When the mass of a certain position of the rotor shaft is heavier, the rotor shaft may vibrate or shake during use, affecting the application effect.

[0004] The existing technology has the following problems which have not been well solved: during use of the existing part of the circulating pump rotor shaft testing device, only the abnormal detection position of the circulating pump is marked by the marking component, and it is difficult to control the marking state according to different abnormal states, which is not convenient for the operator to perform corresponding maintenance treatment according to the severity of the abnormal state. SUMMARY

[0005] The present application aims to provide a hydrogen circulating pump rotor testing device and testing method to solve the problems raised in the background art: it is difficult for the existing part of the hydrogen circulating pump rotor testing device to control the marking state according to different abnormal states. To achieve the above-mentioned purpose, the present application provides the following technical solutions: a hydrogen circulating pump rotor testing device, comprising a detection support, a detection support is symmetrically installed on the top of the detection support, a driving screw is rotatably connected between two detection supports, and an adjusting support is symmetrically screw-connected to the surface of the driving screw;

[0006] It also includes: a detection cylinder is rotatably connected to the upper part of the two adjusting supports, a detection marking mechanism is movably connected to the surface of the detection cylinder, and the detection marking mechanism is used for marking the abnormal position of the rotor shaft detection;

[0007] The lower part of the two adjusting supports and the detection support are movably connected with a switching mechanism matched with the detection marking mechanism, and the switching mechanism is used for switching the detection state.

[0008] Preferably, the detection marking mechanism comprises a movable slot, the movable slot is opened in the inside of the detection cylinder, and a T-shaped clamping block is slidably arranged in the inside of the movable slot.

[0009] The middle part of the outer wall of the detection cylinder is movably sleeved with a movable ring matched with the switching mechanism, the surface of the movable ring is fixedly connected with a pressure rod, and one end of the pressure rod is overlapped with the surface of the T-shaped clamping block;

[0010] Both sides of the outer wall of the detection cylinder are fixedly sleeved with a tooth ring matched with the switching mechanism, a detection groove is arranged between the side wall of the tooth ring and the detection cylinder, one end of the inner wall of the detection groove is fixedly connected with a compression spring, and one end of the compression spring is fixedly connected with a centrifugal adjusting block;

[0011] The other end of the inner wall of the detection groove is slidably provided with an adjusting column, a rhombic hinged strip is hinged between one end of the adjusting column and the end portion of the centrifugal adjusting block, an arc groove is arranged on the surface of the adjusting column, and the inside of the detection groove is fixedly connected with a sliding pin matched with the arc groove;

[0012] The end of the adjusting column away from the centrifugal adjusting block is connected with a marker pen.

[0013] Preferably, the movable grooves are four, the four movable grooves are equidistantly arranged on the inside of the detection cylinder along the circumference, one end of the T-shaped clamping block is arranged in an arc-shaped plate shape through the movable grooves, the other end of the T-shaped clamping block is arranged in a conical shape, and the end of the pressure rod close to the T-shaped clamping block is arranged in a spherical surface;

[0014] The pressure rod is four, the four pressure rods are equidistantly fixedly connected to the surface of the movable ring along the circumference, the four pressure rods correspond to the four movable grooves one by one, and the outer ring of the movable ring is rotatably connected with a pull ring matched with the switching mechanism;

[0015] The middle part of the T-shaped clamping block is movably sleeved with a return spring, and one end of the return spring is overlapped with the inner wall of the movable groove.

[0016] Preferably, the rhombic hinged strip is composed of two V-shaped hinged blocks, a horizontal rod and a movable spring, the horizontal rod is fixedly connected between the two sides of the inner wall of the detection groove, the two V-shaped hinged blocks are slidably arranged on the two sides of the horizontal rod respectively, and the movable spring is movably sleeved in the middle part of the horizontal rod;

[0017] The two ends of the V-shaped hinged block are hinged with the end portion of the centrifugal adjusting block and the adjusting column respectively, and the two V-shaped hinged blocks are arranged in a rhombic state at the middle position of the detection groove.

[0018] Preferably, the arc grooves are two, the two arc grooves are symmetrically arranged on the surface of the adjusting column, and the included angle between the two ends of the arc groove is ninety degrees;

[0019] The marker pen is detachably mounted at the end portion of the adjusting column, and the end portion of the marker pen is arranged in a character type.

[0020] Preferably, the switching mechanism comprises a transmission plate, the transmission plate is movably inserted between the lower parts of the two adjusting supports, the left end of the transmission plate is fixedly connected with the side wall of the adjacent detection support, and the right side of the transmission plate is movably inserted in the inside of the adjacent detection support.

[0021] The middle part of the transmission plate is provided with a corrugated groove, and the top of the transmission plate is fixedly connected with a transmission rack.

[0022] The middle parts of the two adjusting supports are movably connected with a vertical support, the two sides of the vertical support are rotatably connected with gear rods, the lower parts of the gear rods are meshed with the surface of the transmission rack, the upper parts of the gear rods are fixedly connected with end face gears matched with the toothed rings, the bottom of the vertical support is fixedly connected with a transmission pin, and the transmission pin is slidably arranged in the inside of the corrugated groove.

[0023] The top of the vertical support is fixedly connected with a T-shaped transmission block, the two sides of the T-shaped transmission block are provided with inclined grooves, the inside of the inclined grooves is slidably provided with a T-shaped connecting rod, and the top of the T-shaped connecting rod is fixedly connected with the bottom of the corresponding pull ring.

[0024] Preferably, the distance between the top and the bottom of the corrugated groove is the same as the straight line distance between the two ends of the inclined groove.

[0025] The height of the transmission rack is two times the distance between the top and the bottom of the corrugated groove.

[0026] Preferably, the upper part of the adjusting support is fixedly connected with an elastic connecting ring, the inner ring of the elastic connecting ring is fixedly connected with a connecting bearing, and the inner ring of the connecting bearing is fixedly connected with the surface of the detection cylinder.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] In the present application, when the detection cylinder and the detection marker mechanism are used in cooperation, the rotor shaft rotates synchronously with the detection cylinder, and the centrifugal force of the mass at a certain position on the surface of the rotor shaft is increased, and the increased centrifugal force can drive the marker pen to perform marking work, so that the abnormal position of the test can be recorded quickly and conveniently.

[0029] In the present application, under the action of the rhombic hinged strip, the greater the centrifugal force generated by the centrifugal adjusting block, the longer the distance moved by the adjusting column with the marker pen, and under the cooperation of the arc groove and the sliding pin, the longer the distance moved by the adjusting column, the greater the angle of rotation of the marker pen, and according to the thickness of the marking line of the marker pen, the size of the mass deviation of different abnormal positions can be intuitively tested, so that the maintenance treatment can be conveniently carried out in the later period.

[0030] In the present application, by the cooperation of the detection cylinder, the detection mark mechanism and the switching mechanism, when the adjusting support carries the detection cylinder to translate between the two detection supports, the detection mark mechanism cooperates with the switching mechanism to make the detection cylinder rotate synchronously with the rotor shaft for a period of time, and then switch to the detection cylinder rotation mode. The position of the marker pen on the surface of the detection cylinder is switched, and the marker pen moves along the spiral track between the two detection supports. The detection position can be switched in stages. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a perspective view of the detection support and the detection support position in the present application;

[0032] Figure 2 It is a perspective view of the detection support and the detection support position in the present application; Figure 1

[0033] Figure 3 It is a front view of the detection support and the transmission plate position in the present application;

[0034] Figure 4 It is a front view of the detection support and the transmission plate position in the present application; Figure 3

[0035] Figure 5

[0036] Figure 6 It is a side view of the detection cylinder and the T-shaped clamp block in the present application;

[0037] Figure 7 It is a side view of the detection cylinder and the T-shaped clamp block in the present application; Figure 6

[0038] Figure 8

[0039] Figure 9 It is a left view of the detection cylinder and the detection groove in the present application;

[0040] Figure 10 It is a left view of the detection cylinder and the detection groove in the present application; Figure 9

[0041] Figure 11

[0042] Figure 12 It is a perspective view of the adjusting support in the present application;

[0043] Figure 13 It is a perspective view of the adjusting support in the present application;

[0044] ​​​​​​​In the figure: 1, detection support; 2, detection support; 3, drive screw; 4, adjusting support; 5, detection cylinder; 6, detection marking mechanism; 601, movable groove; 602, T-shaped clamp block; 603, movable ring; 604, pressure rod; 605, tooth ring; 606, detection groove; 607, compression spring; 608, centrifugal adjusting block; 609, adjusting column; 610, diamond-shaped hinged strip; 611, arc groove; 612, sliding pin; 613, marking pen; 7, switching mechanism; 701, transmission plate; 702, corrugated groove; 703, transmission rack; 704, vertical support; 705, gear rod; 706, face gear; 707, transmission pin; 708, T-shaped transmission block; 709, inclined groove; 710, T-shaped connecting rod. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0046] Please refer to Figures 1 to 13 The present application provides a technical solution: a testing device for a hydrogen circulation pump rotor, which comprises a detection support 1, detection supports 2 symmetrically installed on the top of the detection support 1, a drive screw 3 rotationally connected between the two detection supports 2, and adjusting supports 4 symmetrically screw-connected to the surface of the drive screw 3. It should be noted that the left detection support 2 is fixedly installed on the top of the detection support 1, and the right detection support 2 is slidingly installed on the top of the detection support 1. The distance between the right detection support 2 and the left detection support 2 is adjusted by controlling the translation of the right detection support 2 on the top of the detection support 1. A drive motor is fixedly connected to the inside of the left detection support 2, and the left end of the drive screw 3 is fixedly connected to the movable end of the drive motor. The drive screw 3 is rotated by the drive motor, and the two adjusting supports 4 move with the detection cylinder 5 between the two detection supports 2. The above driving mode is prior art, and will not be described in detail.

[0047] The testing device further comprises a detection cylinder 5, which is rotationally connected to the upper part of the two adjusting supports 4. A detection marking mechanism 6 is movably connected to the surface of the detection cylinder 5, and is used for marking abnormal positions of the rotor shaft. It should be noted that the rotor shaft is installed between the two detection supports 2 through the detection cylinder 5. The movable end of the detection support 2 on the left end of the detection support 1 is rotated with the rotor shaft by a drive device, and detection is performed. The drive device on the detection support 1 and the movable end of the detection support 2 both adopt the technology in the prior art testing device, and will not be described in detail.

[0048] The lower part of the two adjusting supports 4 is movably connected with the switching mechanism 7 cooperating with the detection marker mechanism 6 between the detection support 2, and the switching mechanism 7 is used for switching the detection state.

[0049] In the embodiment, as shown in the figure, Figures 1 to 13 The detection marker mechanism 6 includes a movable groove 601, which is arranged in the inner part of the detection cylinder 5, and a T-shaped clamping block 602 is slidably arranged in the inner part of the movable groove 601.

[0050] A movable ring 603 cooperating with the switching mechanism 7 is symmetrically movably sleeved on the middle part of the outer wall of the detection cylinder 5, a pressure rod 604 is fixedly connected to the surface of the movable ring 603, and one end of the pressure rod 604 is overlapped with the surface of the T-shaped clamping block 602. It should be noted that when the switching mechanism 7 drives the relative movement of the two movable rings 603, the movable ring 603 with the pressure rod 604 is pressed on the surface of the T-shaped clamping block 602, so that the T-shaped clamping block 602 moves towards the rotor shaft direction.

[0051] Two tooth rings 605 cooperating with the switching mechanism 7 are fixedly sleeved on both sides of the outer wall of the detection cylinder 5, a detection groove 606 is arranged between the side wall of the tooth ring 605 and the detection cylinder 5, a compression spring 607 is fixedly connected to one end of the inner wall of the detection groove 606, and one end of the compression spring 607 is fixedly connected to a centrifugal adjusting block 608. It should be noted that when the rotor shaft and the detection cylinder 5 are at a constant speed, the elastic force of the compression spring 607 and the supporting reaction force of the rhombic hinge strip 610 can offset the centrifugal force on the surface of the detection cylinder 5, and when the mass of a certain part of the rotor shaft surface abnormally increases, the centrifugal force generated during the rotation of the rotor shaft at that part increases, at this time, the compression spring 607 cannot offset the increased centrifugal force, so that the compression spring 607 deforms, and the centrifugal adjusting block 608 moves in the detection groove 606.

[0052] A adjusting column 609 is slidably arranged on the other end of the inner wall of the detection groove 606, a rhombic hinge strip 610 is hingedly connected between one end of the adjusting column 609 and the end of the centrifugal adjusting block 608, an arc groove 611 is arranged on the surface of the adjusting column 609, and a sliding pin 612 cooperating with the arc groove 611 is fixedly connected in the inner part of the detection groove 606.

[0053] The end of the adjusting column 609 away from the centrifugal adjusting block 608 is connected with a marker pen 613. It should be noted that through the rhombic hinge strip 610, when the centrifugal adjusting block 608 moves, the adjusting column 609 moves in the opposite direction synchronously, so that the centrifugal adjusting block 608 can move with the marker pen 613 during the movement, and the marker pen 613 is arranged as a spring telescopic rod structure, which ensures that the marker pen 613 can stably adhere to the surface of the rotor shaft for marking, and the marker pen 613 can only rotate with the adjusting column 609 and cannot self-rotate.

[0054] In the embodiment, as shown in Figures 1 to 13 The four movable grooves 601 are equidistantly arranged on the inner wall of the detection cylinder 5, one end of the T-shaped clamping block 602 is in the shape of an arc plate, and the other end of the T-shaped clamping block 602 is in the shape of a cone. The one end of the pressing rod 604 close to the T-shaped clamping block 602 is in the shape of a sphere. It should be noted that the T-shaped clamping block 602 in the shape of an arc plate is convenient for the T-shaped clamping block 602 to be attached to the rotor shaft, so that the rotor shaft rotates synchronously with the T-shaped clamping block 602 and the detection cylinder 5. The other end of the T-shaped clamping block 602 is in the shape of a cone, so that when the pressing rod 604 is pressed against the tapered surface of the T-shaped clamping block 602, the T-shaped clamping block 602 can move towards the axis of the detection cylinder 5 in the movable groove 601.

[0055] The four pressing rods 604 are equidistantly fixedly connected to the surface of the movable ring 603, and the four pressing rods 604 correspond to the four movable grooves 601. The outer ring of the movable ring 603 is rotationally connected to a pull ring matched with the switching mechanism 7. It should be noted that the inner ring of the movable ring 603 is equidistantly fixedly connected to four positioning rods, the spherical head of the positioning rod is lapped with the outer wall of the detection cylinder 5, and the positioning rod is arranged to ensure the stability of the movable ring 603 during sliding on the outer wall of the detection cylinder 5.

[0056] The middle part of the T-shaped clamping block 602 is movably sleeved with a reset spring, and one end of the reset spring is lapped with the inner wall of the movable groove 601.

[0057] In the embodiment, as shown in Figures 1 to 13 The rhombus-shaped hinged strip 610 is composed of two V-shaped hinged blocks, a horizontal rod and a movable spring. The horizontal rod is fixedly connected between the two sides of the inner wall of the detection groove 606, the two V-shaped hinged blocks are respectively slidably arranged on the two sides of the horizontal rod, and the movable spring is movably sleeved on the middle part of the horizontal rod.

[0058] The two ends of the V-shaped hinged block are respectively hinged to the centrifugal adjusting block 608 and the end of the adjusting column 609, and the two V-shaped hinged blocks are arranged in a rhombus state at the middle position of the detection groove 606.

[0059] In the embodiment, as shown in Figures 1 to 13 The two arc grooves 611 are symmetrically arranged on the surface of the adjusting column 609, and the included angle between the two ends of the arc groove 611 is ninety degrees.

[0060] The marking pen 613 is detachably mounted at the end of the adjusting column 609, and the end of the marking pen 613 is provided in a character type. It should be noted that when the adjusting column 609 is extended from the inside of the detection groove 606, in the process of cooperating and sliding of the arc groove 611 and the slide pin 612, the adjusting column 609 will be deflected synchronously with the marking pen 613, and the longer the adjusting column 609 is extended, the greater the angle of deflection of the adjusting column 609 with the marking pen 613. Therefore, according to the centrifugal force of the rotor shaft surface anomaly, the angle of deflection of the marking pen 613 is synchronously controlled, so that the specific situation of the increasing rotor shaft surface quality anomaly can be observed by the operator, and the later maintenance processing is facilitated.

[0061] In the embodiment, as shown in the figure, Figures 1 to 13 The switching mechanism 7 includes a transmission plate 701 movably inserted between the lower parts of the two adjusting supports 4, the left end of the transmission plate 701 is fixedly connected with the side wall of the adjacent detection support 2, and the right side of the transmission plate 701 is movably inserted into the inside of the adjacent detection support 2. It should be noted that the right end of the transmission plate 701 is fixedly connected with a pad, and the bottom of the pad is fixedly mounted on the top of the detection support 2.

[0062] The middle part of the transmission plate 701 is provided with a corrugated groove 702, and the top of the transmission plate 701 is fixedly connected with a transmission rack 703.

[0063] The middle part of the two adjusting supports 4 is movably connected with a vertical support 704, and the two sides of the vertical support 704 are rotatably connected with gear rods 705. The lower part of the gear rod 705 is engaged with the surface of the transmission rack 703, the upper part of the gear rod 705 is fixedly connected with an end face gear 706 matched with the tooth ring 605, the bottom of the vertical support 704 is fixedly connected with a transmission pin 707, and the transmission pin 707 is slidably arranged in the inside of the corrugated groove 702. It should be noted that when the two adjusting supports 4 with the vertical support 704 are translated between the two detection supports 2, the gear rod 705 moves synchronously with the vertical support 704 and is engaged with the transmission rack 703, so that the gear rod 705 is engaged with the corresponding tooth ring 605 through the end face gear 706, the tooth ring 605 rotates with the detection cylinder 5, and the positions of the centrifugal adjusting blocks 608 and the marking pen 613 on the surface of the detection cylinder 5 are adjusted and switched; the surface of the gear rod 705 and the surface of the vertical support 704 are fixedly connected with a mounting bearing.

[0064] The top of the vertical support 704 is fixedly connected with a T-shaped transmission block 708, and the two sides of the T-shaped transmission block 708 are provided with inclined grooves 709, and the T-shaped transmission block 708 is slidably provided with a T-shaped connecting rod 710, and the top of the T-shaped connecting rod 710 is fixedly connected with the bottom of the corresponding pull ring. It should be noted that when the vertical support 704 translates, the transmission pin 707 slides along the track of the corrugated groove 702, so that the vertical support 704 moves up and down reciprocatingly, and when the vertical support 704 moves up, the inclined groove 709 on the T-shaped transmission block 708 cooperates with the T-shaped connecting rod 710 at the bottom of the pull ring to slide, so that the pull ring moves synchronously with the movable ring 603, at this time, the two movable rings 603 move away from each other, and the T-shaped clamping block 602 is away from the surface of the rotor shaft, so that the detection cylinder 5 is separated from the synchronous rotating state with the rotor shaft; on the contrary, when the vertical support 704 moves down, the T-shaped connecting rod 710 cooperates with the inclined groove 709 to slide, so that the two movable rings 603 move relatively, at this time, the T-shaped clamping block 602 is attached to the surface of the rotor shaft, so that the rotor shaft and the detection cylinder 5 rotate synchronously, so that the centrifugal adjusting block 608 cooperates with the marker pen 613 to mark the abnormal position during the synchronous rotation of the detection cylinder 5 and the rotor shaft, and after the detection cylinder 5 is separated from the rotating state with the rotor shaft, the detection cylinder 5 switches the detection marking position with the marker pen 613.

[0065] As shown in the embodiment, Figures 1 to 13 The distance between the top and the bottom of the corrugated groove 702 is the same as the straight line distance between the two ends of the inclined groove 709.

[0066] The height of the transmission rack 703 is twice the distance between the top and the bottom of the corrugated groove 702. It should be noted that the height of the transmission rack 703 is set, so that after the vertical support 704 moves up with the gear rod 705, the gear rod 705 can stably mesh with the transmission gear, and the end face gear 706 at the top of the gear rod 705 meshes with the corresponding tooth ring 605 to drive.

[0067] As shown in the embodiment, Figures 1 to 13 The upper part of the adjusting support 4 is fixedly connected with an elastic connecting ring, the inner ring of the elastic connecting ring is fixedly connected with a connecting bearing, and the inner ring of the connecting bearing is fixedly connected with the surface of the detection cylinder 5. It should be noted that the elastic connecting ring is a rubber ring, which can prevent the rotor shaft from vibrating and synchronously vibrating with the adjusting support 4 through the connecting bearing; and the inner ring of the pull ring is also fixedly connected with an elastic connecting ring, and the pull ring is fixedly connected with the outer ring of the movable ring 603 through the elastic connecting ring and the connecting bearing. The connecting bearing is a damping bearing type, which can prevent the detection cylinder 5 from rotating; during the synchronous rotation of the T-shaped clamping block 602 in the detection cylinder 5 and the surface of the rotor shaft, the continuously translating adjusting support 4 will cause a small deformation of the elastic connecting ring, which can prevent interference with the rotating detection cylinder 5. The use of the above-mentioned elastic connecting ring is the prior art, which will not be described in detail.

[0068] As shown in the embodiment,Figures 1 to 13 The test method of the test device for the hydrogen circulation pump rotor is shown, which comprises the following steps:

[0069] S1, in use, first install the circulation pump rotor shaft between the two detection supports 2, and the circulation pump rotor is inserted in the middle position of the detection cylinder 5, then rotate the movable end of the detection support 2 and the circulation pump rotor shaft through the drive on the detection support 1, and then start the drive motor to rotate the drive screw 3, so that the adjustment support 4 connected with the drive screw 3 by screw thread rotates, and the detection cylinder 5 slides horizontally on the surface of the transmission plate 701;

[0070] S2, in this process, the adjustment support 4 moves synchronously with the vertical support 704 and the gear rod 705, so that the gear rod 705 meshes with the transmission rack 703, the end face gear 706 meshes with the corresponding tooth ring 605 driven by the rotating gear rod 705, and then the two tooth rings 605 rotate synchronously with the detection cylinder 5, and the position of the marker pen 613 inside the detection cylinder 5 is switched periodically;

[0071] S3, while the adjustment support 4 moves the transmission pin 707 at the bottom of the vertical support 704 along the trajectory of the corrugated groove 702, when the transmission pin 707 moves the vertical support 704 to the lower trajectory position of the corrugated groove 702, the vertical support 704 moves the gear rod 705 and the end face gear 706 downward and disengages from the tooth ring 605, and at the same time, the vertical support 704 moves the T-shaped transmission block 708 downward, and in the process of sliding in cooperation with the inclined groove 709 and the T-shaped connecting rod 710, the T-shaped connecting rod 710 moves the pull ring and the movable ring 603 to the direction of the movable groove 601, so that the pressure rod 604 presses on the conical surface of the T-shaped clamping block 602 inside the movable groove 601, and the T-shaped clamping block 602 moves to the axial position of the detection cylinder 5 and is attached to the surface of the circulation pump rotor shaft, at this time, the rotation of the circulation pump rotor will rotate the detection cylinder 5 synchronously, and the dynamic balance detection is carried out, then when the transmission pin 707 moves to the upper trajectory position of the corrugated groove 702 again, the vertical support 704 moves upward, the T-shaped clamping block 602 is separated from the surface of the circulation pump rotor, and the end face gear 706 at the top of the gear rod 705 meshes with the tooth ring 605 again, so that the detection cylinder 5 rotates again, and in this way, the detection cylinder 5 adjusts the position of the marker pen 613 in stages while moving on the surface of the circulation pump rotor, and the detection cylinder 5 rotates synchronously with the circulation pump rotor to carry out the detection work;

[0072] S4, when the mass of a certain position on the surface of the circulating pump rotor is overweight, the centrifugal adjusting block 608 on the detection cylinder 5 moves to the position, and the T-shaped clamping block 602 on the inner wall of the detection cylinder 5 is clamped in the state of synchronous rotation of the circulating pump rotor, the centrifugal force generated in the rotation process of the position of the mass overweight on the surface of the circulating pump rotor is relatively large, at this time the centrifugal adjusting block 608 pushes the compression spring 607 to shrink under the action of the large centrifugal force, and under the action of the rhombic hinged strip 610, the adjusting column 609 will move in the opposite direction of the centrifugal adjusting block 608, so that the adjusting column 609 with the marker pen 613 at the end is attached to the surface of the circulating pump rotor shaft, and the abnormal position is marked;

[0073] S5, the size of the above-mentioned centrifugal force will affect the position of the centrifugal adjusting block 608 moving inside the detection groove 606, and under the action of the rhombic hinged strip 610, the adjusting column 609 moves synchronously with the centrifugal adjusting block 608, when the adjusting column 609 moves, the marker pen 613 rotates synchronously with the adjusting column 609 in the cooperation and sliding process of the arc groove 611 and the sliding pin 612, and the longer the adjusting column 609 moves, the larger the angle of rotation of the adjusting column 609, when the angle of rotation of the adjusting column 609 is small, the marker pen 613 moves with the adjusting column 609 and is pressed against the marking line thin on the surface of the circulating pump rotor, when the angle of rotation of the adjusting column 609 increases, the marker pen 613 rotates with the adjusting column 609 and is pressed against the marking line thick on the surface of the circulating pump rotor, so as to judge the size of the mass overweight condition of the abnormal marking position, which is convenient for the operator to detect and maintain.

[0074] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application, various changes and improvements of the present application can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A testing device for a hydrogen circulating pump rotor, comprising a testing support (1), wherein testing brackets (2) are symmetrically mounted on the top of the testing support (1), and a drive screw (3) is rotatably connected between the two testing brackets (2), and an adjusting bracket (4) is symmetrically threaded onto the surface of the drive screw (3). Its features are, Also includes: The detection cylinder (5) is rotatably connected to the upper part of the two adjustment brackets (4). The surface of the detection cylinder (5) is movably connected to the detection marking mechanism (6), which is used to mark the abnormal position of the rotor shaft detection. The lower parts of the two adjustment brackets (4) are movably connected to the detection bracket (2) by a switching mechanism (7) that cooperates with the detection marking mechanism (6). The switching mechanism (7) is used to switch the detection state. The detection marking mechanism (6) includes a movable groove (601), which is opened inside the detection cylinder (5), and a T-shaped clamp (602) is slidably arranged inside the movable groove (601). The outer wall of the detection cylinder (5) is symmetrically and movably sleeved with a movable ring (603) that cooperates with the switching mechanism (7). A pressure rod (604) is fixedly connected to the surface of the movable ring (603). One end of the pressure rod (604) overlaps with the surface of the T-shaped clamp (602). Both sides of the outer wall of the detection cylinder (5) are fixedly sleeved with toothed rings (605) that cooperate with the switching mechanism (7). A detection groove (606) is opened between the side wall of the toothed ring (605) and the detection cylinder (5). A compression spring (607) is fixedly connected to one end of the inner wall of the detection groove (606), and a centrifugal adjusting block (608) is fixedly connected to one end of the compression spring (607). An adjusting column (609) is slidably provided at the other end of the inner wall of the detection groove (606). A diamond-shaped hinge strip (610) is hinged between one end of the adjusting column (609) and the end of the centrifugal adjusting block (608). An arc groove (611) is opened on the surface of the adjusting column (609). A sliding pin (612) that cooperates with the arc groove (611) is fixedly connected inside the detection groove (606). A marker pen (613) is connected to the end of the adjusting column (609) away from the centrifugal adjusting block (608). The four movable slots (601) are provided and are equidistantly arranged in the interior of the detection cylinder (5) along the circumference. One end of the T-shaped clamp (602) passes through the movable slot (601) and is set as an arc plate. The other end of the T-shaped clamp (602) is set as a cone. The end of the pressure rod (604) near the T-shaped clamp (602) is set as a spherical surface. The pressure rod (604) is set to four, and the four pressure rods (604) are fixedly connected to the surface of the movable ring (603) at equal intervals along the circumference. The four pressure rods (604) correspond one-to-one with the four movable slots (601). The outer ring of the movable ring (603) is rotatably connected to a pull ring that cooperates with the switching mechanism (7). A return spring is movably sleeved in the middle of the T-shaped clamp (602), and one end of the return spring overlaps with the inner wall of the movable groove (601). The switching mechanism (7) includes a transmission plate (701), which is movably inserted between the lower parts of the two adjustment brackets (4). The left end of the transmission plate (701) is fixedly connected to the side wall of the adjacent detection bracket (2), and the right side of the transmission plate (701) is movably inserted into the interior of the adjacent detection bracket (2). The transmission plate (701) has a corrugated groove (702) in the middle, and a transmission rack (703) is fixedly connected to the top of the transmission plate (701). A vertical support (704) is movably connected between the middle parts of the two adjustment brackets (4). A gear rod (705) is rotatably connected to both sides of the vertical support (704). The lower part of the gear rod (705) meshes with the surface of the transmission rack (703). An end face gear (706) that cooperates with the gear ring (605) is fixedly connected to the upper part of the gear rod (705). A transmission pin (707) is fixedly connected to the bottom of the vertical support (704). The transmission pin (707) is slidably disposed inside the corrugated groove (702). The top of the vertical support (704) is fixedly connected to a T-shaped transmission block (708). Both sides of the T-shaped transmission block (708) are provided with inclined grooves (709). A T-shaped connecting rod (710) is slidably arranged inside the inclined groove (709). The top of the T-shaped connecting rod (710) is fixedly connected to the bottom of the corresponding pull ring. During the synchronous rotation of the rotor shaft and the detection cylinder, if the mass at a certain position on the rotor shaft surface is heavier, the centrifugal force at that position will increase, and the increased centrifugal force can drive the marking pen to perform marking operations.

2. The testing apparatus for the hydrogen circulation pump rotor according to claim 1, characterized in that: The diamond-shaped hinge bar (610) consists of two V-shaped hinge blocks, a crossbar and a movable spring. The crossbar is fixedly connected between the two sides of the inner wall of the detection groove (606). The two V-shaped hinge blocks are slidably arranged on both sides of the crossbar, and the movable spring is movably sleeved in the middle of the crossbar. The two ends of the V-shaped hinge block are respectively hinged to the ends of the centrifugal adjusting block (608) and the adjusting column (609), and the two V-shaped hinge blocks are arranged in a diamond shape in the middle of the detection groove (606).

3. The testing apparatus for the hydrogen circulation pump rotor according to claim 2, characterized in that: The arc groove (611) is provided in two parts, and the two arc grooves (611) are symmetrically opened on the surface of the adjusting column (609). The included angle between the two ends of the arc groove (611) is set to ninety degrees. The marker pen (613) is detachably mounted on the end of the adjusting column (609), and the end of the marker pen (613) is designed in a straight line shape.

4. The testing apparatus for the hydrogen circulation pump rotor according to claim 3, characterized in that: The distance between the top and bottom of the corrugated groove (702) is the same as the straight-line distance between the two ends of the inclined groove (709); The height of the transmission rack (703) is set to twice the distance between the top and bottom of the corrugated groove (702).

5. The testing apparatus for the hydrogen circulation pump rotor according to claim 4, characterized in that: An elastic connecting ring is fixedly connected to the upper part of the adjusting bracket (4), and a connecting bearing is fixedly connected to the inner ring of the elastic connecting ring. The inner ring of the connecting bearing is fixedly connected to the surface of the detection cylinder (5).

6. A test method for a test apparatus for a hydrogen circulating pump rotor, characterized in that, The test apparatus for the hydrogen circulation pump rotor as described in any one of claims 1-5 includes the following steps: S1. Device preparation and start-up: Install the circulating pump rotor shaft between the two detection brackets (2) and through the middle of the detection cylinder (5). Drive the rotor shaft to rotate through the driver of the detection support (1). Then start the drive motor so that the drive screw (3) drives the adjustment bracket (4) and the detection cylinder (5) to slide horizontally. S2, Detection position switching: When the adjusting bracket (4) slides, the gear rod (705) meshes with the transmission rack (703), and drives the gear ring (605) to rotate through the end face gear (706), which in turn drives the detection cylinder (5) to rotate, thereby realizing the periodic switching of the detection position of the marking pen (613); S3, detection state switching: During the sliding process of the adjusting bracket (4), the transmission pin (707) moves along the track of the corrugated groove (702), driving the vertical bracket (704) to move up and down. When the vertical bracket (704) moves down, the movable ring (603) pushes the T-shaped clamp (602) to clamp the rotor shaft through the pressure rod (604), and the detection cylinder (5) rotates synchronously with the rotor to enter the detection state. When the vertical bracket (704) moves up, the T-shaped clamp (602) is released, and the detection cylinder (5) rotates independently to switch the detection position. S4. Abnormal marking: If the mass of a certain position of the rotor is too heavy, the centrifugal force at the corresponding position will increase. Under the action of centrifugal force, the end of the centrifugal adjusting block (608) pushes the compression spring (607) to deform. Through the diamond hinge bar (610), the adjusting column (609) moves in the opposite direction, so that the marking pen (613) is attached to the rotor surface to mark the abnormal position. S5. Abnormality indication: The magnitude of centrifugal force determines the moving distance of the centrifugal adjusting block (608). Through the cooperation of the arc groove (611) and the sliding pin (612), the adjusting column (609) drives the marking pen (613) to deflect. The longer the moving distance of the centrifugal adjusting block (608), the larger the deflection angle, resulting in different thicknesses of the marking lines, which intuitively reflects the degree of weight deviation.

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