CN218994725U - Hydraulic energy supply rotary axial force loading device - Google Patents
Hydraulic energy supply rotary axial force loading device Download PDFInfo
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- CN218994725U CN218994725U CN202223444366.7U CN202223444366U CN218994725U CN 218994725 U CN218994725 U CN 218994725U CN 202223444366 U CN202223444366 U CN 202223444366U CN 218994725 U CN218994725 U CN 218994725U
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Abstract
The utility model discloses a rotary axial force loading device powered by water pressure, which comprises an axial power assembly, a double-cavity pressure regulating device mechanically connected with the axial power assembly, and a water flow circulation loop connected with the double-cavity pressure regulating device through a pipeline, wherein the axial power assembly is used for providing axial force and torque, the water flow circulation loop is used for providing water flow with pressure to drive the double-cavity pressure regulating device to act, and the double-cavity pressure regulating device is used for regulating the direction and the magnitude of the axial force provided by the axial power assembly. The utility model adopts water pressure to supply energy, has simple structure, can bidirectionally adjust the axial force, can adjust the axial force of loading, and can meet the test requirements of limited space, higher cleanliness requirement and higher test loading requirement.
Description
Technical Field
The utility model relates to the field of test devices, in particular to a hydraulic energy-supply rotary axial force loading device.
Background
At present, in the field of heavy-duty rotating machinery, a thrust bearing with high axial force or other parts input under similar working conditions can be used as key parts to directly influence the working condition and service life of equipment, and considering that the installation and test of large-scale equipment can consume a great deal of manpower, material resources and financial resources, it is very important that the bearing performs certain performance detection and test before being installed on the equipment. In the test work of the bearing, the simulation of the working condition of the thrust bearing directly influences the test result. In the prior art achievements, most axial force loading devices have the defects that unidirectional axial force loading cannot be eliminated, oil pressure is used as an axial force loading source, high rotating speed is not supported, the structure is complex, the control is inaccurate and the like.
Disclosure of Invention
The utility model aims to provide a hydraulic-powered rotary axial force loading device which is simple in structure, can bidirectionally adjust axial force and can adjust the axial force.
In order to achieve the above object, the present utility model provides a hydraulic-powered rotary axial force loading device, comprising: the axial power assembly is used for providing axial force and torque, the water flow circulation loop is used for providing water flow with pressure to drive the double-cavity pressure regulating device to act, and the double-cavity pressure regulating device is used for regulating the direction and the magnitude of the axial force provided by the axial power assembly;
the axial power assembly includes: the device comprises a transmission main shaft and a driving motor, wherein one end of the transmission main shaft is connected with the driving motor, the other end of the transmission main shaft is connected with a tested device, and the transmission main shaft loads torque provided by the driving motor to the tested device;
the dual-cavity pressure regulating device comprises: the device comprises a main cavity and a thrust disc arranged in the cavity, wherein the thrust disc divides the main cavity into a first cavity and a second cavity, the thrust disc can move in the cavity, the transmission main shaft penetrates through the main cavity, and the transmission main shaft is fixedly connected with the thrust disc;
the water flow circulation loop comprises:
a water tank for providing a water flow medium;
a first water flow control circuit connected to the water tank and the first chamber, respectively, for forming a water flow circulation circuit between the water tank and the first chamber and controlling a water pressure in the first chamber;
and the second water flow control loop is respectively connected with the water tank and the second cavity and is used for forming a water flow circulation loop between the water tank and the second cavity and controlling the water pressure in the second cavity.
The driving motor is connected with one end of the transmission main shaft through a coupler.
The water flow circulation loop further comprises: the differential pressure meter is connected with the first cavity and the second cavity through pipelines respectively and is used for detecting the pressure difference between the first cavity and the second cavity in real time.
The first cavity is provided with a first through hole, the second cavity is provided with a second through hole, the transmission main shaft penetrates through the first through hole and the second through hole, sealing parts are arranged in the first through hole and the second through hole, the sealing parts surround the transmission main shaft, and the sealing parts realize the sealing of the first cavity and the second cavity.
The transmission main shaft penetrates through two ends of the total cavity, the bearing inner ring of the bearing body is fixedly connected with the transmission main shaft, and the outer shell of the bearing body is fixedly connected with the outer wall of the total cavity.
The total cavity comprises a loader shell and a cavity gland, and the cavity gland is fixedly connected with the loader shell through a fastening bolt.
The transmission main shaft is provided with a connecting part which is used for connecting a thrust disc in the double-cavity pressure regulating device.
The thrust disc is fixedly connected with a connecting part on the transmission main shaft by adopting a connecting component, the connecting component comprises a fixed cover plate and a fixed bolt, the fixed cover plate clamps the connecting part, and the fixed bolt passes through the thrust disc and is fixedly connected with the fixed cover plate.
The sealing bush is sleeved on the contact part of the thrust disc and the inner wall of the total cavity, and when the thrust disc moves in the total cavity, the sealing bush realizes the sealing of the first cavity and the second cavity and the cooling and lubrication of the gap.
The first water flow control circuit comprises: the first water inlet pipeline is connected with the water outlet of the water tank and the water inlet of the first cavity, and the first water outlet pipeline is connected with the water outlet of the first cavity and the water inlet of the water tank, and a first regulating pump is arranged on the first water inlet pipeline and used for regulating the pressure of water flow entering the first cavity;
the second water flow control circuit comprises: the second water inlet pipeline is connected with the water outlet of the water tank and the water inlet of the second cavity, and the second water outlet pipeline is connected with the water outlet of the second cavity and the water inlet of the water tank, and a second regulating pump is arranged on the second water inlet pipeline and used for regulating the pressure of water flow entering the second cavity.
The utility model adopts water pressure to supply energy, has simple structure, can bidirectionally adjust the axial force, can adjust the axial force of loading, and can meet the test requirements of limited space, higher cleanliness requirement and higher test loading requirement.
Drawings
Fig. 1 is a schematic cross-sectional view of a hydraulically powered rotary axial force loading device according to the present utility model.
Detailed Description
The following describes a preferred embodiment of the present utility model in detail with reference to fig. 1.
Because most of the axial force loading devices at present cannot get rid of the defects of unidirectional axial force loading, oil pressure serving as an axial force loading source, high rotating speed support, complex structure, inaccurate control and the like, the development of axial force loading equipment which can support high rotating speed, ultrahigh axial force, is simple in structure and low in control system requirement is significant for the current thrust bearing test or other product equipment needing to simulate similar working environments.
As shown in fig. 1, the present utility model provides a hydraulically powered rotary axial force loading device comprising: the axial power assembly is used for providing axial force and torque, the water circulation loop is used for providing water flow with pressure so as to drive the double-cavity pressure regulating device to act, and the double-cavity pressure regulating device is used for regulating the direction and the magnitude of the axial force provided by the axial power assembly.
Further, the axial power assembly includes: the device comprises a transmission main shaft 3 and a driving motor 1, wherein the driving motor 1 is connected with one end of the transmission main shaft 3 through a coupler 2, torque provided by the driving motor 1 is transmitted to the transmission main shaft 3, a connecting part 17 is arranged on the transmission main shaft 3 and used for being connected with a thrust disc 9 in the double-cavity pressure regulating device, and the other end of the transmission main shaft 3 is used for being connected with a device to be tested.
The dual-cavity pressure regulating device comprises: the device comprises a total cavity 22 and a thrust disc 9 arranged in the total cavity 22, wherein the thrust disc 9 divides the total cavity 22 into a first cavity 20 and a second cavity 21, the thrust disc 9 can move in the total cavity 22, the transmission main shaft 3 passes through the total cavity 22, and a connecting part 17 on the transmission main shaft 3 is fixedly connected with the thrust disc 9.
The water flow circulation loop comprises:
a water tank 16 for providing a water flow medium;
a first water flow control circuit connected to the water tank 16 and the first chamber 20, respectively, for forming a water flow circulation circuit between the water tank 16 and the first chamber 20 and controlling a water pressure in the first chamber 20;
a second water flow control circuit connected to the water tank 16 and the second chamber 21, respectively, for forming a water flow circulation circuit between the water tank 16 and the second chamber 21 and controlling a water pressure in the second chamber 21;
the differential pressure meter 11 is connected with the first cavity 20 and the second cavity 21 through pipelines respectively, and is used for detecting the pressure difference between the first cavity 20 and the second cavity 21 in real time.
In the present embodiment, the total cavity 22 includes a loader housing 10 and a cavity gland 6, and the cavity gland 6 is fixedly connected with the loader housing 10 through a fastening bolt 7; the loader shell 10 is provided with a first through hole, the chamber gland 6 is provided with a second through hole for the transmission main shaft 3 to pass through, in order to ensure the tightness of the first cavity 20 and the second cavity 21, sealing parts 5 are respectively arranged in the first through hole and the second through hole, the sealing parts 5 surround the transmission main shaft 3, and the tightness of the first cavity 20 and the second cavity 21 is ensured on the basis that the transmission main shaft 3 can move; in order to radially position the transmission spindle 3, bearing bodies 4 are respectively arranged at two ends of the transmission spindle 3 penetrating through the total cavity 22, an inner bearing ring in the bearing bodies 4 is fixedly connected with the transmission spindle 3, an outer shell of the bearing bodies 4 is fixedly connected with the outer wall of the total cavity 22, in this embodiment, the outer shell of the first bearing body is fixedly connected with the outer wall of the loader shell 10, the outer shell of the second bearing body is fixedly connected with the outer wall of the cavity gland 6, and the bearing bodies 4 can realize radial constraint on the transmission spindle 3, namely, the bearing bodies 4 ensure that the transmission spindle 3 can only rotate or move along the axial direction but cannot move radially.
In this embodiment, the thrust disc 9 is fixedly connected with the connecting portion 17 on the transmission main shaft 3 by using a connecting assembly, the connecting assembly includes a fixed cover plate 12 and a fixed bolt 13, the fixed cover plate 12 clamps the connecting portion 17, and the fixed bolt passes through the thrust disc 9 and is fixedly connected with the fixed cover plate 12.
In this embodiment, a sealing bush 8 is sleeved on a portion of the thrust disc 9, which contacts with the inner wall of the total cavity 22, and the sealing bush 8 is fixedly mounted on the thrust disc 9 by using a screw 14, so that a very small gap flow is formed between the sealing bush 8 and the total cavity 22, and when the thrust disc 9 moves in the total cavity 22, sealing of the first cavity 20 and the second cavity 21 and cooling and lubrication of the gap can be realized.
In this embodiment, the first water flow control circuit further includes: the first water inlet pipeline 18-1 connected with the water outlet of the water tank 16 and the water inlet of the first cavity 20, and the first water outlet pipeline 18-2 connected with the water outlet of the first cavity 20 and the water inlet of the water tank 16, wherein the first water inlet pipeline 18-1 is provided with a first regulating pump 19 for regulating the pressure of water flow entering the first cavity 20.
In this embodiment, the second water flow control circuit further includes: the second water inlet pipeline 23-1 is connected with the water outlet of the water tank 16 and the water inlet of the second cavity 21, and the second water outlet pipeline 23-2 is connected with the water outlet of the second cavity 21 and the water inlet of the water tank 16, and the second water inlet pipeline 23-1 is provided with a second regulating pump 15 for regulating the pressure of the water flow entering the second cavity 21.
The utility model provides a hydraulic energy-supply rotary axial force loading device, which has the working principle that: after the test is started, the transmission main shaft 3 loads the torque output by the driving motor 1 to the tested device, the water pressure entering the first cavity 20 is regulated by the first regulating pump 19, the water pressure entering the second cavity 21 is regulated by the second regulating pump 15, the movement of the thrust disc 9 is caused by the pressure difference between the first cavity 20 and the second cavity 21, and then the transmission main shaft 3 is driven to move, so that the pressure difference between the first cavity 20 and the second cavity 21 is converted into an axial force on the transmission main shaft 3, the axial force is loaded to the tested device, in the test process, the magnitude and the direction of the pressure difference between the first cavity 20 and the second cavity 21 are detected in real time by the differential pressure gauge 11, the magnitude and the direction of the pressure difference between the first cavity 20 and the second cavity 21 are regulated by the first water flow control loop, the magnitude and the direction of the force loaded to the tested device are regulated, and if the pressure difference in the first cavity 20 is larger than the second cavity 21 and vice versa, the axial force is larger than the second pressure difference in the first cavity 20 and vice versa, and the axial force is larger than the first cavity 21 is larger than the second pressure difference in the first cavity 20 and the absolute value is larger than the second cavity 20.
The utility model adopts the water pressure function, is easy to maintain, has easily available loading medium (an oil way system is complex, has cleaning problems such as oil leakage and the like), and is more friendly to workshops with higher requirements on cleanliness. The axial force loading realizes one-way force loading on the thrust disc by changing the pressure difference between the upper cavity and the lower cavity of the thrust disc. The high axial force can be obtained by varying the loading water pressure level of the upper and lower chambers, the area level of the upper and lower surfaces of the thrust disc (force = pressure-pressure acting area).
The utility model has simple structure, can bidirectionally adjust the axial force, can adjust the axial force of loading, and can meet the test requirements of limited space, higher cleanliness requirement and higher test loading requirement.
It should be noted that, in the embodiments of the present utility model, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While the present utility model has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the utility model. Many modifications and substitutions of the present utility model will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the utility model should be limited only by the attached claims.
Claims (10)
1. A hydraulically powered rotary axial force loading device comprising: the axial power assembly is used for providing axial force and torque, the water flow circulation loop is used for providing water flow with pressure to drive the double-cavity pressure regulating device to act, and the double-cavity pressure regulating device is used for regulating the direction and the magnitude of the axial force provided by the axial power assembly;
the axial power assembly includes: the device comprises a transmission main shaft and a driving motor, wherein one end of the transmission main shaft is connected with the driving motor, the other end of the transmission main shaft is connected with a tested device, and the transmission main shaft loads torque provided by the driving motor to the tested device;
the dual-cavity pressure regulating device comprises: the device comprises a main cavity and a thrust disc arranged in the cavity, wherein the thrust disc divides the main cavity into a first cavity and a second cavity, the thrust disc can move in the cavity, the transmission main shaft penetrates through the main cavity, and the transmission main shaft is fixedly connected with the thrust disc;
the water flow circulation loop comprises:
a water tank for providing a water flow medium;
a first water flow control circuit connected to the water tank and the first chamber, respectively, for forming a water flow circulation circuit between the water tank and the first chamber and controlling a water pressure in the first chamber;
and the second water flow control loop is respectively connected with the water tank and the second cavity and is used for forming a water flow circulation loop between the water tank and the second cavity and controlling the water pressure in the second cavity.
2. The hydraulically powered rotary axial force loading device of claim 1, wherein the drive motor is coupled to one end of the drive shaft via a coupling.
3. The hydraulically powered rotary axial force loading device of claim 1, wherein the water flow circulation circuit further comprises: the differential pressure meter is connected with the first cavity and the second cavity through pipelines respectively and is used for detecting the pressure difference between the first cavity and the second cavity in real time.
4. The hydraulically powered rotary axial force loading device of claim 1, wherein the first cavity has a first through hole and the second cavity has a second through hole, the drive shaft passing through the first and second through holes, sealing members disposed within the first and second through holes, the sealing members surrounding the drive shaft, the sealing members effecting sealing of the first and second cavities.
5. The hydraulically powered rotary axial force loading device of claim 1, wherein bearing bodies are disposed at both ends of the drive spindle passing through the main cavity, the bearing inner race of the bearing bodies is fixedly connected with the drive spindle, and the outer housing of the bearing bodies is fixedly connected with the outer wall of the main cavity.
6. A hydraulically powered rotary axial force loading device as recited in claim 4 or 5, wherein the general cavity comprises a loader housing and a chamber gland fixedly connected to the loader housing by a fastening bolt.
7. The hydraulically powered rotary axial force loading device of claim 1, wherein the drive spindle has a connection for connecting to a thrust disc in the dual cavity pressure regulator.
8. The hydraulically powered rotary axial force loading device of claim 6, wherein a connection assembly is used to fixedly connect the thrust disc to the connection on the drive spindle, the connection assembly comprising a stationary cover plate and a stationary bolt, the stationary cover plate capturing the connection, the stationary bolt passing through the thrust disc and fixedly connecting the stationary cover plate.
9. The hydraulically powered rotary axial force loading device of claim 1, wherein a sealing liner is sleeved on the portion of the thrust disc in contact with the inner wall of the main cavity, and wherein the sealing liner effects sealing of the first and second cavities and cooling and lubrication of the gap when the thrust disc moves within the main cavity.
10. The hydraulically powered rotary axial force loading device of claim 1, wherein the first water flow control circuit comprises: the first water inlet pipeline is connected with the water outlet of the water tank and the water inlet of the first cavity, and the first water outlet pipeline is connected with the water outlet of the first cavity and the water inlet of the water tank, and a first regulating pump is arranged on the first water inlet pipeline and used for regulating the pressure of water flow entering the first cavity;
the second water flow control circuit comprises: the second water inlet pipeline is connected with the water outlet of the water tank and the water inlet of the second cavity, and the second water outlet pipeline is connected with the water outlet of the second cavity and the water inlet of the water tank, and a second regulating pump is arranged on the second water inlet pipeline and used for regulating the pressure of water flow entering the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223444366.7U CN218994725U (en) | 2022-12-22 | 2022-12-22 | Hydraulic energy supply rotary axial force loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223444366.7U CN218994725U (en) | 2022-12-22 | 2022-12-22 | Hydraulic energy supply rotary axial force loading device |
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| Publication Number | Publication Date |
|---|---|
| CN218994725U true CN218994725U (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223444366.7U Active CN218994725U (en) | 2022-12-22 | 2022-12-22 | Hydraulic energy supply rotary axial force loading device |
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| CN (1) | CN218994725U (en) |
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- 2022-12-22 CN CN202223444366.7U patent/CN218994725U/en active Active
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