CN212674610U - High-low temperature device suitable for friction material testing machine - Google Patents
High-low temperature device suitable for friction material testing machine Download PDFInfo
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- CN212674610U CN212674610U CN202021748942.5U CN202021748942U CN212674610U CN 212674610 U CN212674610 U CN 212674610U CN 202021748942 U CN202021748942 U CN 202021748942U CN 212674610 U CN212674610 U CN 212674610U
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Abstract
The utility model belongs to friction material testing machine field to a high low temperature equipment suitable for friction material testing machine is specifically disclosed. The device comprises a high-low temperature adjusting module, a vertical pressurizing module, a horizontal movement module and a control module, wherein the high-low temperature adjusting module is arranged at the bottom of the vertical pressurizing module and comprises a high-low temperature adjusting outer cover, a workpiece fixing groove, a high-temperature adjusting unit and CO2Low temperature conditioning unit, high temperature conditioning unit and CO2The low-temperature regulating unit is used for matching regulationThe temperature of the workpiece fixing groove is saved, the horizontal movement module is arranged below the workpiece fixing groove, the control module comprises a temperature detection unit and a controller, the temperature detection unit is used for detecting the temperatures of the workpiece fixing groove and the workpiece, and the controller is used for adjusting the power and CO of the high-temperature adjusting unit according to the temperatures of the workpiece fixing groove and the workpiece2Liquid CO in a cryogenic conditioning unit2Output and input quantities. The utility model has the characteristics of refrigeration and environmental temperature adjust simple process, low temperature regulatory function easily operate, easily realize etc.
Description
Technical Field
The utility model belongs to friction material testing machine field, more specifically relates to a high low temperature device suitable for friction material testing machine.
Background
The friction material is widely applied to bridge supports and seismic isolation and reduction products, the using environment of the friction material is complex, the friction material comprises tropical and alpine regions, the friction performance of the friction material at high temperature and low temperature is related to the using performance of the bridge supports and seismic isolation and reduction products, and the high-low temperature performance of the friction material has extremely important design and use values in practical use.
The high-low temperature device of the friction material testing machine relates to the high-low temperature performance of bridge supports and seismic isolation and reduction products, and mainly comprises the steps of heating or cooling the test environment temperature to enable a sample to be tested to be in a specified temperature environment, and measuring the friction performance of the sample such as the initial friction coefficient, the average dynamic friction coefficient, the abrasion rate and the like under the specified temperature environment.
At present, a low-temperature device in an existing high-low temperature device mainly provides a cooling source through a refrigerator or a refrigerating bag to cool the temperature of a sample, so that a low-temperature effect is achieved.
Based on the above drawbacks and deficiencies, there is a need in the art to further improve the design of the high and low temperature device in the friction material testing machine to construct an ambient temperature regulated high and low temperature device.
SUMMERY OF THE UTILITY MODEL
Aim at the presentThe above defect of the prior art or improvement demand, the utility model provides a high low temperature device suitable for friction material testing machine, wherein combine the characteristics of high low temperature device self and the experimental technological characteristics of friction material, the corresponding high low temperature device who is applicable to friction material testing machine that has designed, and study and design its key subassembly like high low temperature adjusting module, vertical pressurization module, horizontal motion module and control module's structure and concrete mode that sets up, the condition can be set for according to friction test's temperature to corresponding, adopt high temperature regulating unit and CO2The temperature of the workpiece fixing groove and the workpiece is adjusted by the cooperation of the low-temperature adjusting unit, so that the workpiece keeps a specified test temperature in the test process, friction performance tests at different speeds and different surface pressures at different temperatures are met, and the device has the characteristics of simple refrigeration and environment temperature adjusting process, easy operation and realization of a low-temperature adjusting function and the like.
In order to achieve the above purpose, the utility model provides a high-low temperature device suitable for a friction material testing machine, which comprises a high-low temperature adjusting module, a vertical pressurizing module, a horizontal motion module and a control module, wherein,
the high-low temperature adjusting module is arranged at the bottom of the vertical pressurizing module and comprises a high-low temperature adjusting outer cover, a workpiece fixing groove arranged at the bottom of the high-low temperature adjusting outer cover, a high-temperature adjusting unit arranged at the top of the workpiece fixing groove and CO2A low temperature conditioning unit, the high temperature conditioning unit and CO2The low-temperature adjusting unit is used for adjusting the temperature of the workpiece fixing groove in a matching manner, so that the workpiece fixed in the workpiece fixing groove keeps a specified test temperature in the test process;
the horizontal movement module is arranged below the workpiece fixing groove and used for providing horizontal friction force of the workpiece in the test process;
the control module comprises a temperature detection unit and a controller, the temperature detection unit is used for detecting the temperatures of the workpiece fixing groove and the workpiece, and the controller is used for adjusting the power and CO of the high-temperature adjusting unit according to the temperatures of the workpiece fixing groove and the workpiece2Low temperatureLiquid CO in the conditioning unit2Output and input quantities.
As further preferred, the CO2The low-temperature adjusting unit comprises an upper half shell expansion cavity and a lower half shell expansion cavity which are arranged inside the high-low temperature adjusting outer cover and liquid CO arranged beside the high-low temperature adjusting outer cover2The gas cylinder, cavity structures have all been seted up to first half shell expansion chamber and second half shell expansion chamber, just cavity structures's one side is seted up to first half shell expansion chamber with cavity structures's one side fixed connection is seted up to second half shell expansion chamber to form CO2An expansion chamber, the liquid CO2The gas cylinder is connected with the CO through a gas inlet pipe2The expansion chambers are connected.
Further preferably, the intake pipe and the CO2Liquid CO is arranged between the expansion cavities2Input valve of the liquid CO2The input valve is fixedly arranged on the high-low temperature adjusting outer cover, and the CO is2The low-temperature adjusting unit also comprises liquid CO arranged on the high-temperature and low-temperature adjusting outer cover2Outlet valve of said liquid CO2One end of the output valve is connected with the CO2The expansion cavities are communicated.
As further preferred, the CO2The low-temperature regulating unit also comprises a liquid CO2The air inlet pipe is wound with a heat preservation belt.
Preferably, a groove for accommodating the high-temperature adjusting unit is formed in the top of the workpiece fixing groove, and holes for embedding the temperature detecting unit are formed in the high-temperature and low-temperature adjusting outer cover and the workpiece fixing groove.
Preferably, the high temperature adjustment unit includes a heating circulator and a return hose, and the heating circulator is connected to the heat pipe joint through the return hose to form a return line.
As a further preferred, the heating circulator includes a plurality of heaters uniformly arranged in a circumferential direction of the groove.
Preferably, the number of the heaters is three, the included angle between adjacent heaters is 120 °, and the power of the heaters is 100W.
Preferably, the high temperature adjusting unit further includes a thermal cut-off for cutting off a power supply of the heating circulator when the temperatures of the workpiece fixing groove and the workpiece exceed a predetermined temperature.
Preferably, a heat insulation plate is arranged at the top of the high-low temperature adjusting outer cover, and the high-low temperature adjusting outer cover is a nylon heat insulation sleeve.
Generally, through the utility model above technical scheme who thinks compares with prior art, mainly possesses following technical advantage:
1. the utility model adopts a high temperature adjusting unit and CO2The temperature of the workpiece fixing groove and the workpiece is adjusted through the cooperation of the low-temperature adjusting unit, so that the workpiece keeps the designated test temperature in the test process, the high-temperature and low-temperature setting of the friction material testing machine is realized, the friction performance tests at different speeds and different surface pressures at different temperatures can be met, and the design and the use of the friction performance of the bridge bearing and the seismic isolation reduction and reduction product are of guiding significance.
2. The utility model discloses a to CO2The intelligent control of the low-temperature adjusting unit enables the temperature of the workpiece fixing groove and the temperature of the workpiece to be rapidly and dynamically adjusted in real time, and the intelligent control of the high temperature and the low temperature of the friction material testing machine is achieved.
3. The utility model discloses a design insulation material and equipment to the realization reduces thermal loss to the heat preservation of integrated device, improves the efficiency of temperature regulation and control.
4. The utility model discloses a high temperature regulation unit is including heating circulator and backflow hose, the heating circulator passes through backflow hose and heat pipe joint connect constitute the return line, can realize the high-efficient rapid heating of work piece fixed slot and work piece to the thermal environment of simulation friction material in the friction process.
5. The utility model discloses an adopt temperature detector to respond sensitively to ambient temperature (recess and work piece), set for the temperature floating temperature and can require to set for according to different standards, liquid CO2The pressure is stable (1.6-2.0 Mpa), the temperature is set in a quick response way, and compared with the traditional method, the temperature is lowerThe temperature device, refrigeration and environment temperature adjusting procedures are simple, and the low-temperature adjusting function is easy to operate and realize.
Drawings
Fig. 1 is a schematic structural diagram of a high and low temperature apparatus suitable for a friction material testing machine according to a preferred embodiment of the present invention;
FIG. 2 shows CO in a high/low temperature apparatus suitable for a friction material testing machine according to a preferred embodiment of the present invention2The structure schematic diagram of the low-temperature regulating unit;
fig. 3 is a schematic structural diagram of a high temperature adjusting unit in a high and low temperature device suitable for a friction material testing machine according to a preferred embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-vertical actuator, 2-liquid CO2Output valve, 3-high and low temperature regulating outer cover, 4-horizontal actuator, 5-liquid CO2Input valve, 6-reflux hose, 7-sliding platform, 8-liquid CO2The device comprises a gas cylinder, 9-a pressure regulating valve, 10-a gas inlet pipe, 11-a temperature detector, 12-a heater, 13-a thermal breaker, 14-a workpiece fixing groove, 15-a heat-insulating outer cover, 16-a lower half shell expansion cavity, 17-an upper half shell expansion cavity and 18-a heat-insulating plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in FIG. 1, FIG. 2 and FIG. 3, the embodiment of the utility model provides a high low temperature device suitable for friction material testing machine includes high low temperature adjusting module, vertical pressurization module, horizontal motion module and control module, wherein, high low temperature adjusting module locates vertical pressurization module bottom, this high low temperature adjusting module include heightTemperature adjusting outer cover, workpiece fixing groove 14 arranged at the bottom of high-low temperature adjusting outer cover, high-temperature adjusting unit arranged at the top of workpiece fixing groove 14 and CO2A low temperature conditioning unit, the high temperature conditioning unit and CO2The low-temperature adjusting unit is used for adjusting the temperature of the workpiece fixing groove 14 in a matching manner, so that the workpiece fixed on the workpiece fixing groove 14 keeps a specified test temperature in the test process; the horizontal movement module is arranged below the workpiece fixing groove 14 and used for providing horizontal friction force of the workpiece in the test process; the control module comprises a temperature detection unit and a controller, the temperature detection unit is used for detecting the temperatures of the workpiece fixing groove 14 and the workpiece, and the controller is used for adjusting the power and CO of the high-temperature adjusting unit according to the temperatures of the workpiece fixing groove 14 and the workpiece2Liquid CO in a cryogenic conditioning unit2Output and input quantities. And holes for embedding the temperature detection units are formed in the high-low temperature adjusting outer cover and the workpiece fixing groove 14. The utility model discloses in, the controller is the PLC controller.
Particularly, the utility model discloses in, vertical pressurization module provides vertical pressure for the work piece in the experiment, and it includes vertical actuator 1 and sets up in the pressure disk of 1 bottoms of vertical actuator. The bottom of the pressure plate is fixedly connected with the high-low temperature adjusting module. The vertical actuator 1 is in communication with the control module for controlling the displacement of the vertical actuator 1 in the vertical direction, in this way with the pressure value applied to the workpiece by the controller. The horizontal motion module is arranged below the high-low temperature adjusting module and comprises a horizontal actuator 4 and a sliding platform 7, wherein the horizontal actuator 4 is fixedly connected with the sliding platform 7, the sliding platform 7 is used for bearing a workpiece, the horizontal actuator 4 is in communication connection with the controller and moves horizontally under the control action of the controller, and therefore the friction environment of the workpiece is simulated in the mode.
As shown in fig. 2, the high-low temperature adjusting module includes a high-low temperature adjusting housing, a workpiece fixing groove 14 formed at the bottom of the high-low temperature adjusting housing, a high-temperature adjusting unit formed between the high-low temperature adjusting housing and the workpiece fixing groove 14, and CO2A low temperature conditioning unit. Wherein, in order to ensure the temperature of the whole deviceThe high-low temperature adjusting outer cover is made of heat-insulating materials with specified compressive strength, such as nylon heat-insulating sleeves made of nylon. In order to further improve the temperature loss of the whole device, a heat insulation plate 18 is arranged at the top of the high-low temperature adjusting outer cover, and a heat insulation outer cover 15 is arranged at the bottom of the high-low temperature adjusting outer cover, so that the whole device forms an outer cover with a heat insulation effect. The high-low temperature adjusting outer cover is a structure with a cavity inside and is used for containing CO2CO of a cryogenic conditioning unit2An inflation lumen. More specifically, CO2The low-temperature adjusting unit comprises an upper half shell expansion cavity 17 and a lower half shell expansion cavity 16 which are arranged inside the high-low temperature adjusting outer cover, and liquid CO arranged beside the high-low temperature adjusting outer cover2The gas cylinder 8 is characterized in that the upper half shell expansion cavity 17 and the lower half shell expansion cavity 16 are both provided with cavity structures, and one surface of the upper half shell expansion cavity 17 provided with the cavity structures is fixedly connected with one surface of the lower half shell expansion cavity 16 provided with the cavity structures to form CO2An expansion chamber, the liquid CO2The gas cylinder 8 is connected with the CO through a gas inlet pipe 102The expansion chambers are connected. An inlet pipe 10 and the CO2Liquid CO is arranged between the expansion cavities2Inlet valve 5, the liquid CO2An input valve 5 is fixedly arranged on the high-low temperature adjusting outer cover, and the CO is2The low-temperature adjusting unit also comprises liquid CO arranged on the high-temperature and low-temperature adjusting outer cover2Outlet valve 2, said liquid CO2One end of the output valve 2 is connected with the CO2The expansion cavities are communicated. In this way, when the temperature of the workpiece fixing groove 14 and the workpiece is higher than the temperature set in the friction test, the control module controls the pressure of the pressure regulating valve 9 according to the temperature measured by the temperature detecting unit, thereby controlling the input CO2Liquid CO in expansion chamber2Flow of, liquid CO2In CO2The expansion chamber absorbs heat to expand from liquid CO2The output valve flows out and takes away the temperature of the workpiece fixing groove 14 and the workpiece, so as to rapidly reduce the temperature of the workpiece fixing groove 14 and the workpiece.
In the present invention, the control module adjusts the liquid CO according to the temperature of the workpiece fixing groove 14 and the workpiece2Thereby to the flow rate ofThe temperature of the workpiece fixing groove 14 and the workpiece is maintained in a stable temperature range, and in this way, errors caused by heat generated by the workpiece in the friction test process are overcome. Meanwhile, the feedback regulation mode can reduce the calculated amount of the control module, namely, the temperature is regulated according to one variable in the temperature regulation process.
As the preferred scheme of the utility model, the air inlet pipe 10 is wound with a heat preservation belt.
As shown in fig. 3, the top surface of the workpiece fixing groove 14 is provided with a groove for accommodating the high temperature adjusting unit, and the high temperature adjusting unit includes a heating circulator and a return hose, and the heating circulator is connected to the heat pipe joint 6 through the return hose to form a return line. The heating circulator includes a plurality of heaters 12 uniformly arranged along the circumferential direction of the groove. The number of the heaters 12 is three, the included angle between adjacent heaters 12 is 120 °, and the power of the heaters 12 is 100W. The high temperature adjusting unit further comprises a thermal cut-out 13, and the thermal cut-out 13 is used for cutting off the power supply of the heating circulator when the temperatures of the workpiece fixing groove 14 and the workpiece exceed a specified temperature.
The utility model discloses a high low temperature device's work flow suitable for friction material testing machine does:
the workpiece to be tested is cut into a shape corresponding to the workpiece fixing groove 14, and the workpiece is placed in the workpiece fixing groove 14.
The controller drives the vertical actuator 1 to move downwards until the pressure value applied to the workpiece by the workpiece fixing groove 14 is a set pressure value according to the requirements of the friction test.
The utility model discloses in, temperature detector is PT100 temperature detector. Wherein two PT100 temperature detectors are provided, one being provided on the workpiece-fixing groove 14 for detecting the temperature of the workpiece, and the other being provided on the lower half-shell expansion chamber 16 for detecting the temperature of the workpiece-fixing groove 14.
The utility model discloses a temperature sensor PT100 temperature detector measures recess and work piece temperature, through liquid CO2The temperature of a groove and a workpiece in the friction material testing machine is adjusted by opening and closing the input valve, the high and low temperature setting of the friction material testing machine is realized, the friction performance test at different temperatures and different speeds and different surface pressures can be met, and the design and the use of the friction performance of the bridge bearing and the seismic isolation reduction and reduction product are of guiding significance. Simultaneously, temperature sensor PT100 temperature detector is sensitive to ambient temperature (recess and work piece) reaction, and the unsteady temperature of settlement temperature can be set for according to different standard requirements, the utility model discloses in, liquid CO2The pressure value of (A) is 1.6-2.0 Mpa, and liquid CO2The pressure stability quick response cooling is set, and compared with the traditional low-temperature device, the refrigeration and environment temperature regulation process is simple, and the low-temperature regulation is realizedThe energy-saving function is easy to operate and realize.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A high-low temperature device suitable for a friction material testing machine is characterized by comprising a high-low temperature adjusting module, a vertical pressurizing module, a horizontal movement module and a control module, wherein,
the high-low temperature adjusting module is arranged at the bottom of the vertical pressurizing module and comprises a high-low temperature adjusting outer cover, a workpiece fixing groove (14) arranged at the bottom of the high-low temperature adjusting outer cover, a high-temperature adjusting unit arranged between the high-low temperature adjusting outer cover and the workpiece fixing groove (14) and CO2A low temperature conditioning unit, the high temperature conditioning unit and CO2The low-temperature adjusting unit is used for adjusting the temperature of the workpiece fixing groove (14) in a matching manner, so that the workpiece fixed on the workpiece fixing groove (14) keeps a specified test temperature in the test process;
the horizontal movement module is arranged below the workpiece fixing groove (14) and used for providing horizontal friction force of the workpiece in the test process;
the control module comprises a temperature detection unit and a controller, the temperature detection unit is used for detecting the temperatures of the workpiece fixing groove (14) and the workpiece, and the controller is used for adjusting the power and CO of the high-temperature adjusting unit according to the temperatures of the workpiece fixing groove (14) and the workpiece2Liquid CO in a cryogenic conditioning unit2Output and input quantities.
2. The high and low temperature device for friction material testing machine according to claim 1, wherein said CO is selected from the group consisting of2The low-temperature adjusting unit comprises an upper half shell expansion cavity (17) and a lower half shell expansion cavity (16) which are arranged in the high-low temperature adjusting outer cover and arranged at the high-low temperature adjusting positionLiquid CO beside joint housing2The gas cylinder (8), cavity structures have all been seted up in half upper shell expansion chamber (17) and half lower shell expansion chamber (16), just the one side that cavity structures was seted up in half upper shell expansion chamber (17) with the one side fixed connection that cavity structures was seted up in half lower shell expansion chamber (16) to form CO2An expansion chamber, the liquid CO2The gas cylinder (8) is connected with the CO through a gas inlet pipe (10)2The expansion chambers are connected.
3. High and low temperature device suitable for friction material testing machine according to claim 2, characterized in that the air inlet pipe (10) and the CO2Liquid CO is arranged between the expansion cavities2An inlet valve (5), the liquid CO2An input valve (5) is fixedly arranged on the high-low temperature adjusting outer cover, and CO is2The low-temperature adjusting unit also comprises liquid CO arranged on the high-temperature and low-temperature adjusting outer cover2Outlet valve (2), the liquid CO2One end of the output valve (2) is connected with the CO2The expansion cavities are communicated.
4. The high and low temperature device suitable for friction material testing machine of claim 2, wherein the CO is selected from the group consisting of2The low-temperature regulating unit also comprises a liquid CO2The pressure regulating valve (9) is arranged between the gas cylinder (8) and the gas inlet pipe (10), and the gas inlet pipe (10) is wound with a heat preservation belt.
5. The high-low temperature device suitable for the friction material testing machine according to claim 1, wherein a groove for accommodating the high-temperature adjusting unit is formed at the top of the workpiece fixing groove (14), and holes for embedding the temperature detecting unit are formed in the high-low temperature adjusting cover and the workpiece fixing groove (14).
6. A high and low temperature device suitable for a friction material testing machine according to claim 5, wherein the high temperature adjusting unit comprises a heating circulator and a return hose, and the heating circulator is connected with the heat pipe connector (6) through the return hose to form a return pipeline.
7. A high and low temperature device suitable for a friction material testing machine according to claim 6, wherein the heating circulator comprises a plurality of heaters (12) uniformly arranged along the circumferential direction of the groove.
8. The high and low temperature device suitable for the friction material testing machine is characterized in that the number of the heaters (12) is three, the included angle between the adjacent heaters (12) is 120 degrees, and the power of the heaters (12) is 100W.
9. The high and low temperature apparatus for a friction material testing machine according to claim 6, wherein the high temperature adjusting unit further comprises a thermal cut-out (13), the thermal cut-out (13) is used for cutting off the power supply of the heating circulator when the temperature of the workpiece fixing groove (14) and the workpiece exceeds a specified temperature.
10. The high-low temperature device suitable for the friction material testing machine is characterized in that a heat insulation plate (18) is arranged at the top of the high-low temperature adjusting outer cover, and the high-low temperature adjusting outer cover is a nylon heat insulation sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021748942.5U CN212674610U (en) | 2020-08-20 | 2020-08-20 | High-low temperature device suitable for friction material testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021748942.5U CN212674610U (en) | 2020-08-20 | 2020-08-20 | High-low temperature device suitable for friction material testing machine |
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| Publication Number | Publication Date |
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| CN212674610U true CN212674610U (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021748942.5U Active CN212674610U (en) | 2020-08-20 | 2020-08-20 | High-low temperature device suitable for friction material testing machine |
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| CN (1) | CN212674610U (en) |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20220217 Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Address before: 430000 No.9, Wudong street, Qingshan District, Wuhan City, Hubei Province Patentee before: WUHAN HIRUN ENGINEERING EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |