Damping testing device for low-damping magnetofluid sealing

Abstract

The utility model discloses a damping testing device for low-damping magnetofluid sealing, and relates to the technical field of testing devices. The damping testing device for the low-damping magnetofluid seal comprises a base; the testing assembly is used for carrying out damping testing on the low-damping magnetofluid sealing device, and the testing assembly comprises a testing box arranged on the upper surface of the base; and the temperature control assembly is used for controlling the temperature environment in the test box. According to the utility model, through the arrangement of the temperature control assembly, the temperature value of the temperature sensor can be input through the temperature controller in advance, and the refrigeration fan or the hot-air blower can be started, when the temperature in the test box reaches a preset value, the temperature sensor transmits a signal to the temperature controller, and the temperature controller automatically controls the refrigeration fan or the hot-air blower to be closed; therefore, the purpose of accurately controlling the temperature in the test box is achieved, tests can be conveniently carried out at different environment temperatures, and the accuracy of test data is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field, concretely for a kind of damping test device for low-damping magnetic fluid seal. BACKGROUND

[0002] ‌The working principle of magnetic fluid sealing device is to fix magnetic fluid around rotating shaft by using the characteristics of magnetic fluid by magnet, form the "O-shaped sealing ring" of liquid, and this sealing mode will not occur friction between solids in the case of high-speed rotation of shaft, so it has longer service life.

[0003] At present, when the damping of low-damping magnetic fluid seal is tested, the commonly used method adopts free oscillation method: the corresponding value of pendulum amplitude θ and system inherent period T0 is measured, and then the damping coefficient β is determined, but this method cannot simulate different environments in the process of actual test, so that the damping coefficient of equipment under different environments cannot be tested, and the accuracy of test data is reduced. In view of this, the present application provides a kind of damping test device for low-damping magnetic fluid seal. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of damping test device for low-damping magnetic fluid seal, solves the problem that damping test cannot be carried out at different temperatures in the background art.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of damping test device for low-damping magnetic fluid seal, comprising:

[0006] Base;

[0007] Test component, it is used to carry out damping test to low-damping magnetic fluid sealing device, the test component includes test box being arranged on the upper surface of base, and test block being slidably arranged in the inner wall of test box, and the upper surface of test block is respectively fixed with vibration motor and two springs, the top of two springs is fixedly connected with the inner top wall of test box;

[0008] Temperature control component, it is used to control the temperature environment inside test box;

[0009] Positioning component, it is used to fix low-damping magnetic fluid sealing device, and the positioning component includes positioning seat being arranged on the upper surface of base;

[0010] Driving component, it is used to drive low-damping magnetic fluid sealing device after positioning to automatically enter and exit test box.

[0011] Preferably, the temperature control assembly comprises a refrigeration fan and a hot air fan respectively fixed on the upper surface of the test box, and the air outlet ends of the refrigeration fan and the hot air fan extend to the inside of the test box.

[0012] Preferably, the temperature control assembly further comprises a temperature sensor fixed on the inner top wall of the test box, and a temperature controller fixed on the outer surface of the test box, and the refrigeration fan, the hot air fan and the temperature sensor are electrically connected with the temperature controller through wires.

[0013] Preferably, the outer surface of the test box is provided with a controller, and the front surface of the test box is provided with a rectangular opening, and the inner wall of the rectangular opening is provided with a vacuum glass plate.

[0014] Preferably, the positioning assembly comprises a positioning groove formed in the upper surface of the positioning seat, and a strip-shaped groove formed in the inner bottom wall of the positioning groove, and the inner wall of the strip-shaped groove is rotatably provided with a bidirectional screw rod, and the side surface of the positioning seat is provided with a driving motor for driving the bidirectional screw rod to rotate.

[0015] Preferably, the inner wall of the strip-shaped groove is slidably provided with two symmetrical L-shaped positioning blocks, and the surfaces of the two L-shaped positioning blocks are both provided with threaded holes threadedly connected with the outer surface of the bidirectional screw rod.

[0016] Preferably, the driving assembly comprises two fixed blocks fixed on the two side surfaces of the test box, and two synchronous motors respectively fixed on the upper surfaces of the two fixed blocks, and the output ends of the synchronous motors extend to the lower surfaces of the fixed blocks and are fixedly provided with threaded columns, and the bottom ends of the threaded columns are rotatably connected with the upper surface of the base.

[0017] Preferably, the driving assembly further comprises a lifting block slidably arranged on the upper surface of the base, and the upper surface of the base is fixedly provided with two groups of symmetrical limiting rods, the top ends of the two groups of limiting rods are respectively fixedly connected with the lower surfaces of the two fixed blocks, and the upper surface of the lifting block is respectively provided with two threaded holes threadedly connected with the outer surfaces of the two threaded columns, and is provided with a sliding hole slidably connected with the outer surface of the limiting rod. Beneficial effects

[0018] The utility model provides a kind of damping test device for low-damping magnetic fluid seal.Compared with prior art, it has the following beneficial effects:

[0019] The damping test device for low-damping magnetic fluid seal, by setting the temperature control assembly, can input the temperature value of the temperature sensor through the temperature controller in advance, and start the refrigeration fan or the hot air fan, when the temperature in the test box reaches the preset value, at this time the temperature sensor transmits the signal to the temperature controller, and the temperature controller automatically controls the refrigeration fan or the hot air fan to be closed, so that the temperature in the test box is accurately controlled, and the test under different environmental temperatures is facilitated, and the accuracy of the test data is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a rear view structure schematic view of the utility model;

[0022] Figure 3 It is a test box cross section structure schematic view of the utility model;

[0023] Figure 4 It is a positioning seat overhead structure schematic view of the utility model.

[0024] In the drawing:

[0025] 100, base;

[0026] 200, test assembly; 201, test box; 202, test block; 203, vibration motor; 204, spring; 205, controller; 206, vacuum glass plate;

[0027] 300, temperature control assembly; 301, refrigeration fan; 302, hot air fan; 303, temperature sensor; 304, temperature controller;

[0028] 400, positioning assembly; 401, positioning seat; 402, bidirectional screw; 403, driving motor; 404, L-shaped positioning block;

[0029] 500, driving assembly; 501, fixed block; 502, synchronous motor; 503, threaded column; 504, lifting block; 505, limiting rod. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of damping test device for low-damping magnetic fluid seal, it include:

[0032] Base 100;

[0033] Test component 200 is used to carry out damping test to low-damping magnetic fluid seal device, and test component 200 includes the test box 201 being arranged on the upper surface of base 100, and test block 202 is slidably arranged in the inner wall of test box 201, and the upper surface of test block 202 is respectively fixed with vibration motor 203 and two springs 204, and the top of two springs 204 is fixedly connected with the inner top wall of test box 201.

[0034] Referring to Figure 1 The outer surface of test box 201 is provided with controller 205, and the front surface of test box 201 is provided with rectangular opening, and the inner wall of rectangular opening is fixed with vacuum glass plate 206.

[0035] Specifically, by setting vacuum glass plate 206, the inside of test box 201 is observed.

[0036] Positioning assembly 400 is used to fix low-damping magnetic fluid seal device, and positioning assembly 400 includes the positioning seat 401 being arranged on the upper surface of base 100.

[0037] Referring to Figure 4 Positioning assembly 400 includes positioning groove being arranged on the upper surface of positioning seat 401, and strip slot being arranged in the inner bottom wall of positioning groove, and the inner wall of strip slot is rotatably provided with two-way screw 402, and the side surface of positioning seat 401 is provided with drive motor 403 for driving two-way screw 402 to rotate.

[0038] Specifically, by setting drive motor 403, two-way screw 402 is automatically rotated.

[0039] Referring to Figure 4 The inner wall of strip slot is slidably provided with two symmetrical L-shaped positioning blocks 404, and the surface of two L-shaped positioning blocks 404 is provided with screw hole being threadedly connected with the outer surface of two-way screw 402.

[0040] Specifically, by setting two-way screw 402, two L-shaped positioning blocks 404 are simultaneously moved to the middle or to both sides by the rotation of two-way screw 402.

[0041] Drive assembly 500 is used to drive low-damping magnetic fluid seal device after positioning to automatically enter and exit test box 201.

[0042] Referring to Figure 2The driving assembly 500 comprises two fixed blocks 501 fixed on the two side surfaces of the test box 201, and two synchronous motors 502 fixed on the upper surfaces of the two fixed blocks 501 respectively, the output ends of the synchronous motors 502 extend to the lower surfaces of the fixed blocks 501 and are fixed with threaded columns 503, and the bottom ends of the threaded columns 503 are rotatably connected with the upper surface of the base 100.

[0043] Specifically, the synchronous motor 502 is arranged, so that the threaded column 503 is driven to rotate.

[0044] Referring to Figure 2 The driving assembly 500 further comprises a lifting block 504 slidingly arranged on the upper surface of the base 100, the upper surface of the base 100 is fixed with two groups of symmetrical limiting rods 505, the top ends of the two groups of limiting rods 505 are fixedly connected with the lower surfaces of the two fixed blocks 501 respectively, the upper surface of the lifting block 504 is provided with two threaded holes threadedly connected with the outer surfaces of the two threaded columns 503 respectively, and is provided with a sliding hole slidingly connected with the outer surface of the limiting rod 505.

[0045] Specifically, the threaded column 503 and the limiting rod 505 are arranged, so that the lifting block 504 is automatically moved upward by the rotation of the threaded column 503, and the stability of the lifting block 504 during lifting is effectively improved by the limiting rod 505.

[0046] The utility model discloses, through setting test assembly 200, positioning assembly 400 and driving assembly 500, when the damping of low damping magnetic fluid sealing device is tested, can drive the low damping magnetic fluid sealing device after positioning automatically enter the inside of test box 201, and make low damping magnetic fluid sealing device and test block 202 abut, finally start vibration motor 203 and make test block 202 vibrate, realize the test of low damping magnetic fluid sealing device damping, thereby convenient for testing operation.

[0047] The temperature control assembly 300 is used for controlling the temperature environment in the test box 201.

[0048] Referring to Figure 3 The temperature control assembly 300 comprises a refrigeration fan 301 and a hot air fan 302 fixed on the upper surface of the test box 201 respectively, and the air outlet ends of the refrigeration fan 301 and the hot air fan 302 extend to the inside of the test box 201.

[0049] Referring to Figure 3 The temperature control assembly 300 further comprises a temperature sensor 303 fixed in the inner top wall of the test box 201, and a temperature controller 304 fixed on the outer surface of the test box 201, and the refrigeration fan 301, the hot air fan 302 and the temperature sensor 303 are electrically connected with the temperature controller 304 through wires.

[0050] By setting the temperature control assembly 300, the damping test device for low damping magnetic fluid seal can realize the purpose of accurate control of the temperature in the test box 201 during the test, facilitate the test under different environmental temperatures, and improve the accuracy of test data.

[0051] Working principle: when the device tests the damping of the low damping magnetic fluid seal device, the low damping magnetic fluid seal device can be placed in the positioning groove on the positioning seat 401, the driving motor 403 is started to drive the bidirectional lead screw 402 to rotate, the rotation of the bidirectional lead screw 402 drives the two L-shaped positioning blocks 404 to move towards the middle at the same time, thereby realizing effective fixation of the low damping magnetic fluid seal device, then the two synchronous motors 502 are started, the rotation of the synchronous motors 502 drives the threaded column 503 to rotate, the rotation of the threaded column 503 drives the lifting block 504 to move upwards, thereby driving the positioned low damping magnetic fluid seal device to automatically enter the inside of the test box 201, and making the low damping magnetic fluid seal device abut against the test block 202, finally the vibration motor 203 is started to make the test block 202 vibrate, realizing the test of the damping of the low damping magnetic fluid seal device, and during the test, the temperature value of the temperature sensor 303 can be input in advance through the temperature controller 304, and the refrigeration fan 301 or the hot air fan 302 is started, when the temperature in the test box 201 reaches the preset value, at this time the temperature sensor 303 transmits the signal to the temperature controller 304, the temperature controller 304 automatically controls the refrigeration fan 301 or the hot air fan 302 to close, thereby realizing the purpose of accurate control of the temperature in the test box 201, facilitating the test under different environmental temperatures, and improving the accuracy of test data.

[0052] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

Claims

1. A damping test device for low-damped magnetic fluid seals, characterized by The utility model relates to a low damping magnetic fluid seal damping test device, which comprises a base (100), a test assembly (200) for damping test of low damping magnetic fluid seal device, the test assembly (200) includes the test box (201) of the upper surface of base (100) and the test block (202) of the inner wall of test box (201) is slidably arranged, and the upper surface of test block (202) is fixed with vibration motor (203) and two springs (204) respectively, the top of two springs (204) is fixedly connected with the inner top wall of test box (201). A temperature control assembly (300) is used for controlling the temperature environment inside the test box (201). A positioning assembly (400) is used for fixing the low damping magnetic fluid seal device, and the positioning assembly (400) comprises a positioning seat (401) arranged on the upper surface of the base (100). A driving assembly (500) is used for driving the low damping magnetic fluid seal device to automatically enter and exit the test box (201). The temperature control assembly (300) comprises a refrigeration fan (301) and a hot air fan (302) fixed on the upper surface of the test box (201), and the air outlet ends of the refrigeration fan (301) and the hot air fan (302) extend into the test box (201). The temperature control assembly (300) further comprises a temperature sensor (303) fixed on the inner top wall of the test box (201), and a temperature controller (304) fixed on the outer surface of the test box (201), and the refrigeration fan (301), the hot air fan (302) and the temperature sensor (303) are electrically connected to the temperature controller (304) through wires.

2. A damping test device for low damping magnetic fluid seals according to claim 1, characterized in that: The outer surface of the test box (201) is provided with a controller (205), and the front surface of the test box (201) is provided with a rectangular opening, and the inner wall of the rectangular opening is provided with a vacuum glass plate (206).

3. A damping test device for low damping magnetic fluid seals according to claim 2, characterized in that: The positioning assembly (400) comprises a positioning groove arranged on the upper surface of the positioning seat (401), and a strip-shaped groove arranged on the inner bottom wall of the positioning groove, and the inner wall of the strip-shaped groove is rotatably provided with a bidirectional screw (402), and the side surface of the positioning seat (401) is provided with a driving motor (403) for driving the bidirectional screw (402) to rotate.

4. A damping test device for low damping magnetic fluid seals according to claim 1, characterized in that: The inner wall of the strip-shaped groove is slidably provided with two symmetrical L-shaped positioning blocks (404), and the surfaces of the two L-shaped positioning blocks (404) are provided with threaded holes threadedly connected with the outer surfaces of the bidirectional screws (402).

5. A damping test device for low damping magnetic fluid seals according to claim 1, characterized in that: The driving assembly (500) comprises two fixed blocks (501) fixed on the two side surfaces of the test box (201), and a synchronous motor (502) fixed on the upper surface of each fixed block (501), and the output end of the synchronous motor (502) extends to the lower surface of the fixed block (501) and is fixed with a threaded column (503), and the bottom end of the threaded column (503) is rotatably connected with the upper surface of the base (100).

6. A damping test device for low damping magnetic fluid seals according to claim 5, characterized in that: ​ 7. A damping test device for low damping magnetic fluid seals according to claim 1, characterized in that: ​ 8. A damping test device for low damping magnetic fluid seals according to claim 7, characterized in that: The driving assembly (500) further comprises a lifting block (504) slidingly arranged on the upper surface of the base (100), and the upper surface of the base (100) is fixedly provided with two groups of symmetrical limiting rods (505), the top ends of the two groups of limiting rods (505) are respectively fixedly connected with the lower surfaces of two fixed blocks (501), and the upper surface of the lifting block (504) is respectively provided with two threaded holes in threaded connection with the outer surfaces of two threaded columns (503), and is provided with a sliding hole in sliding connection with the outer surface of the limiting rod (505).

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