CN113092110A - Bidirectional loading mechanism with buffer - Google Patents
Bidirectional loading mechanism with buffer Download PDFInfo
- Publication number
- CN113092110A CN113092110A CN202110401240.2A CN202110401240A CN113092110A CN 113092110 A CN113092110 A CN 113092110A CN 202110401240 A CN202110401240 A CN 202110401240A CN 113092110 A CN113092110 A CN 113092110A
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- China
- Prior art keywords
- sliding
- end cover
- spring
- loading mechanism
- sliding rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 230000002457 bidirectional effect Effects 0.000 title abstract description 7
- 230000003139 buffering effect Effects 0.000 claims abstract description 18
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the field of bearing loading mechanisms, in particular to a bidirectional loading mechanism with a buffer, which comprises a driving component and a buffer component, the servo motor in the driving component drives the shaft coupling to rotate so as to drive the connecting shaft to rotate, and the ball screw pair converts the rotary motion into reciprocating linear motion, the sliding rod is fixed on the inner surface of the buffering shell in a sliding way through the oilless sliding bush, so that the friction can be effectively reduced in the sliding process of the sliding rod, the loading force is connected with the spring retaining ring through the outer surface of the sliding rod in a welding way, and the outer surfaces of the two sides of the spring retaining ring are attached to the spring body, so that the load force on the sliding rod is transferred to the spring body and is buffered by the spring body, then the loading force acts on the buffer shell to realize effective buffering, and the outer surface of the end cover is provided with a tension pressure sensor which can effectively detect the tension.
Description
Technical Field
The invention relates to the field of bearing loading mechanisms, in particular to a bidirectional loading mechanism with buffering.
Background
In the bearing test apparatus, it is necessary to apply a load to the test bearing, and it is necessary to change the load direction, and the like. However, the loading mechanism of some existing devices adopts a rigid connection structure, and cannot apply load to a test bearing and cannot buffer load force in time.
Disclosure of Invention
The present invention is directed to a bidirectional loading mechanism with a buffer to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the bidirectional loading mechanism with the buffer comprises a loading mechanism base plate, wherein the upper surface of the loading mechanism base plate is provided with a driving assembly, the driving assembly comprises a servo motor, a motor fixing seat, a coupler, a connecting shaft, paired angular contact ball bearings, a ball screw pair, a sliding rod and a rotation stopping plate, the servo motor is fixed on the upper surface of the motor fixing seat, the front surface of the servo motor is provided with the coupler, the inner surface of the coupler is connected with the connecting shaft in a nested manner, the paired angular contact ball bearings are sleeved on the outer surface of the connecting shaft, the ball screw pair is arranged on the front end face of the connecting shaft and is rotatably connected with the sliding rod, the rotation stopping plate is arranged on the lower surface of the ball screw pair, the sliding rod is connected with the buffer assembly, the buffer assembly comprises a buffer shell, an, Oilless slip bush, spring guide, spring body, the surface bolt-up of buffering casing has the end cover, the internal surface nestification of end cover is provided with oilless slip bush, the internal surface annular array of end cover is provided with spring guide, spring guide's surface nestification has the spring body.
Through adopting above-mentioned technical scheme, through servo motor among the drive assembly drives the rotation of shaft coupling and then drives the rotation of connecting axle to through the vice reciprocating linear motion that converts rotary motion into of ball, load power transmits the spring body for through the slide bar, through the buffering of spring body, then on the effect of load power arrived buffering casing and realized effectual buffering.
Preferably, the sliding rod is slidably fixed to the inner surface of the buffer housing through the oilless sliding bush, and the oilless sliding bushes are disposed in parallel on the inner surfaces of both end sides of the buffer housing.
Through adopting above-mentioned technical scheme, through the slide bar passes through oilless sliding bush slides and fixes buffer housing's internal surface can be effectively be in the gliding in-process of slide bar reduces the friction, and through the setting that oilless sliding bush is parallel to each other is in buffer housing's both ends side's internal surface can effectively improve slide bar gliding stability.
Preferably, the outer surface of the end cover is provided with a pulling pressure sensor, and the pulling pressure sensor is connected with an external structure.
By adopting the technical scheme, the outer surface of the end cover is provided with the pulling pressure sensor, so that the pulling force can be effectively detected, and the pulling pressure sensor can also be connected with an external structure according to different requirements.
Preferably, the coaxiality of the coupler is the same as that of the connecting shaft and the paired angular contact ball bearing, and the coupler and the paired angular contact ball bearing are detachably connected with the coupler.
By adopting the technical scheme, the rotating stability can be effectively improved by the same coaxiality of the coupler, the connecting shaft and the paired angular contact ball bearings, and the coupler, the paired angular contact ball bearings and the coupler can be detachably connected according to requirements.
Preferably, the outer surface of the sliding rod is welded with a spring retaining ring, the outer surfaces of two sides of the spring retaining ring are attached to the spring body, and the other end of the spring body is attached to the surface of the end cover.
Through adopting above-mentioned technical scheme, through the surface welded connection of slide bar has the spring to keep off the ring, the spring keep off the both sides surface of ring with the laminating of spring body makes the spring of the left and right sides all right the slide bar cushions, and then effectively realizes the effect at two-way buffering.
Preferably, the end cover is slidably embedded in the upper surface of the linear slide rail pair, and the linear slide rail pair is arranged above the loading mechanism bottom plate in parallel.
By adopting the technical scheme, the end cover can be effectively moved according to the requirements of different positions by being embedded on the upper surface of the linear sliding rail pair in a sliding manner.
Preferably, the motor fixing seat is fixed on the upper surface of the loading mechanism base plate through bolts, and the motor fixing seat and the loading mechanism base plate are made of alloy steel.
By adopting the technical scheme, the mechanical rigidity can be effectively improved by adopting the alloy steel material for the motor fixing seat and the loading mechanism bottom plate.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present invention;
FIG. 3 is a schematic view of a coupling and a connecting shaft according to an embodiment of the present invention;
FIG. 4 is a front cross-sectional view of an embodiment of the present invention;
FIG. 5 is a front view of the internal structure of an embodiment of the present invention;
FIG. 6 is an internal partial front view of an embodiment of the present invention;
FIG. 7 is a front view of an embodiment of the present invention;
FIG. 8 is a left side view of an embodiment of the present invention;
fig. 9 is a top view of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a bidirectional loading mechanism with a buffer as shown in figures 1-9, wherein a drive assembly 2 is arranged on the upper surface of a loading mechanism base plate 1, the drive assembly 2 comprises a servo motor 21, a motor fixing seat 211, a coupler 22, a connecting shaft 221, a paired angular contact ball bearing 23, a ball screw pair 24, a sliding rod 25 and a rotation stopping plate 26, the servo motor 21 is fixed on the upper surface of the motor fixing seat 211, the coupler 22 is arranged on the front surface of the servo motor 21, the connecting shaft 221 is connected with the inner surface of the coupler 22 in a nested manner, the paired angular contact ball bearing 23 is sleeved on the outer surface of the connecting shaft 221, the ball screw pair 24 is arranged on the front end surface of the connecting shaft 221, the ball screw pair 24 is rotatably connected with the sliding rod 25, the rotation stopping plate 26 is arranged on the lower surface of the ball screw pair 24, the sliding rod, The oil-free sliding bush 321, the spring guide rod 33 and the spring body 34 are fastened on the outer surface of the buffer shell 31 through bolts, the end cover 32 is embedded on the inner surface of the end cover 32, the spring guide rod 33 is arranged on the inner surface of the end cover 32 in an annular array, and the spring body 34 is embedded on the outer surface of the spring guide rod 33.
In this embodiment, a driving assembly 2 is disposed on an upper surface of a loading mechanism base plate 1, a servo motor 21 is fixed on an upper surface of a motor fixing seat 211, a coupler 22 is disposed on a front surface of the servo motor 21, a connecting shaft 221 is connected to an inner surface of the coupler 22 in a nested manner, a paired angular contact ball bearing 23 is sleeved on an outer surface of the connecting shaft 221, a ball screw pair 24 is disposed on a front end surface of the connecting shaft 221, the ball screw pair 24 is rotatably connected with a slide rod 25, a rotation stop plate 26 is disposed on a lower surface of the ball screw pair 24, the slide rod 25 is connected with a buffer assembly 3, an end cover 32 is fastened to an outer surface of the buffer housing 31 by a bolt, an oil-free sliding bush 321 is nested on an inner surface of the end cover 32, spring guide rods 33 are disposed in an annular array on an inner surface of the end cover 32, a spring body, the rotary motion is converted into reciprocating linear motion through the ball screw pair 24, the load force is transmitted to the spring body 34 through the sliding rod 25, the buffering is realized through the spring body 34, and then the load force is acted on the buffering shell 31 to realize effective buffering.
As shown in fig. 1 and 2, the sliding rod 25 is slidably fixed to the inner surface of the buffer housing 31 through the oilless sliding bush 321, and the oilless sliding bushes 321 are disposed in parallel to each other on the inner surfaces of the two end sides of the buffer housing 31, so that the sliding rod 25 is slidably fixed to the inner surface of the buffer housing 31 through the oilless sliding bush 321, thereby effectively reducing friction during sliding of the sliding rod 25, and the sliding stability of the sliding rod 25 is effectively improved through the oilless sliding bushes 321 disposed in parallel to each other on the inner surfaces of the two end sides of the buffer housing 31.
Referring to fig. 2 and 3, the outer surface of the end cap 32 is provided with the tension and pressure sensor 4, the tension and pressure sensor 4 is connected with an external structure, the tension and pressure sensor 4 is arranged on the outer surface of the end cap 32, so that the tension and pressure sensor 4 can effectively detect the tension, and the tension and pressure sensor 4 can also be connected with the external structure according to different requirements.
The coaxiality of the coupler 22, the connecting shaft 221 and the paired angular contact ball bearing 23 is the same, the coupler 22 and the paired angular contact ball bearing 23 are detachably connected with the coupler 22, the rotating stability can be effectively improved due to the fact that the coaxiality of the coupler 22, the connecting shaft 221 and the paired angular contact ball bearing 23 is the same, and the coupler 22 and the paired angular contact ball bearing 23 can be detachably connected with the coupler 22 according to requirements.
The outer surface welded connection of slide bar 25 has spring to keep off ring 251, and the both sides surface and the laminating of spring body 34 of spring fender ring 251, and the other end and the end cover 32 surface of spring body 34 laminate mutually, and the outer surface welded connection through slide bar 25 has spring to keep off ring 251, and the both sides surface and the laminating of spring body 34 that spring kept off ring 251 make the spring of the left and right sides all can cushion slide bar 25 mutually, and then effectively realize the effect at two-way buffering.
The end cover 32 is slidably embedded in the upper surface of the linear slide rail pair 5, the linear slide rail pair 5 is arranged above the loading mechanism base plate 1 in parallel, and the end cover 32 can be effectively moved according to the requirements of different positions by slidably embedding the end cover 32 in the upper surface of the linear slide rail pair 5.
The motor fixing seat 211 is fixed on the upper surface of the loading mechanism base plate 1 through bolts, the motor fixing seat 211 and the loading mechanism base plate 1 are made of alloy steel, and mechanical rigidity can be effectively improved through the motor fixing seat 211 and the loading mechanism base plate 1 which are made of alloy steel.
This practical theory of operation: when the invention is used, alternating current is firstly connected, the end cover 32 is embedded on the upper surface of the linear slide rail pair 5 in a sliding manner, the linear slide rail pair 5 is arranged above the loading mechanism base plate 1 in parallel, the end cover 32 is embedded on the upper surface of the linear slide rail pair 5 in a sliding manner, so that the position of the end cover 32 can be effectively adjusted, after the position is adjusted, the servo motor 21 in the driving assembly 2 drives the shaft coupler 22 to rotate, so as to drive the connecting shaft 221 to rotate, the rotating motion is converted into reciprocating linear motion through the ball screw pair 24, the load force is connected with the spring retaining ring 251 through the outer surface of the sliding rod 25 in a welding manner, the outer surfaces of the two sides of the spring retaining ring 251 are attached to the spring body 34, so that the load force on the sliding rod 25 is transmitted to the spring body 34 and is buffered through the spring body 34, and then the load force is acted on the buffer, the outer surface of the end cover 32 is provided with the pulling pressure sensor 4, so that the pulling force can be effectively detected, and the pulling pressure sensor 4 can also be connected with an external structure according to different requirements.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a two-way loading mechanism of area buffering, includes the loading mechanism bottom plate, its characterized in that: the upper surface of the loading mechanism bottom plate is provided with the driving assembly, the driving assembly comprises a servo motor, a motor fixing seat, a coupler, a connecting shaft, paired angular contact ball bearings, a ball screw pair, a sliding rod and a rotation stopping plate, the servo motor is fixed on the upper surface of the motor fixing seat, the coupler is arranged on the front surface of the servo motor, the connecting shaft is connected to the inner surface of the coupler in a nested manner, the paired angular contact ball bearings are sleeved on the outer surface of the connecting shaft, the ball screw pair is arranged on the front end surface of the connecting shaft and is rotationally connected with the sliding rod, the rotation stopping plate is arranged on the lower surface of the ball screw pair, the sliding rod is connected with a buffering assembly, the buffering assembly comprises a buffering shell, an end cover, an oil-free sliding bush, a spring guide rod and a spring body, the end cover is fastened, the oil-free sliding bushing is nested on the inner surface of the end cover, the spring guide rods are arranged on the inner surface of the end cover in an annular array, and the spring body is nested on the outer surface of each spring guide rod.
2. The buffered bi-directional load mechanism of claim 1, wherein: the sliding rod is fixed on the inner surface of the buffering shell in a sliding mode through the oilless sliding bush, and the oilless sliding bush is arranged on the inner surfaces of two end sides of the buffering shell in parallel.
3. The buffered bi-directional load mechanism of claim 1, wherein: and a pulling pressure sensor is arranged on the outer surface of the end cover and is connected with an external structure.
4. The buffered bi-directional load mechanism of claim 1, wherein: the shaft coupling with the connecting axle and pair angular contact ball bearing axiality the same, just the shaft coupling with pair angular contact ball bearing with the shaft coupling detachable connection.
5. The buffered bi-directional load mechanism of claim 1, wherein: the outer surface welded connection of slide bar has the spring to keep off the ring, just the spring keep off the both sides surface of ring with the laminating of spring body mutually, the other end of spring body with the end cover surface is laminated mutually.
6. The buffered bi-directional load mechanism of claim 1, wherein: the end cover is embedded in the upper surface of the linear sliding rail pair in a sliding mode, and the linear sliding rail pair is arranged above the loading mechanism base plate in parallel.
7. The buffered bi-directional load mechanism of claim 1, wherein: the motor fixing seat is fixed on the upper surface of the loading mechanism bottom plate through bolts, and the motor fixing seat and the loading mechanism bottom plate are made of alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401240.2A CN113092110A (en) | 2021-04-14 | 2021-04-14 | Bidirectional loading mechanism with buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401240.2A CN113092110A (en) | 2021-04-14 | 2021-04-14 | Bidirectional loading mechanism with buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113092110A true CN113092110A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110401240.2A Pending CN113092110A (en) | 2021-04-14 | 2021-04-14 | Bidirectional loading mechanism with buffer |
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| Country | Link |
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| CN (1) | CN113092110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532852A (en) * | 2021-07-20 | 2021-10-22 | 上海人本精密机械有限公司 | High-low temperature durability and performance testing machine for precision ball screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866033A (en) * | 2012-10-22 | 2013-01-09 | 清华大学 | Dynamic loading device for two-way tension and pressure |
| CN103837339A (en) * | 2014-03-26 | 2014-06-04 | 中国工程物理研究院机械制造工艺研究所 | Dynamic driving system adopting servo force |
| CN105954017A (en) * | 2016-05-10 | 2016-09-21 | 西北工业大学 | Planetary roller screw pair friction torque measurement device |
| CN106441882A (en) * | 2016-11-26 | 2017-02-22 | 陕西理工学院 | Bidirectional loading device of planetary roller screw pair and loading method |
| US20200264085A1 (en) * | 2018-07-17 | 2020-08-20 | Dalian University Of Technology | Transverse load stepless amplitude modulation device of multiple bolt loosing tester |
-
2021
- 2021-04-14 CN CN202110401240.2A patent/CN113092110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866033A (en) * | 2012-10-22 | 2013-01-09 | 清华大学 | Dynamic loading device for two-way tension and pressure |
| CN103837339A (en) * | 2014-03-26 | 2014-06-04 | 中国工程物理研究院机械制造工艺研究所 | Dynamic driving system adopting servo force |
| CN105954017A (en) * | 2016-05-10 | 2016-09-21 | 西北工业大学 | Planetary roller screw pair friction torque measurement device |
| CN106441882A (en) * | 2016-11-26 | 2017-02-22 | 陕西理工学院 | Bidirectional loading device of planetary roller screw pair and loading method |
| US20200264085A1 (en) * | 2018-07-17 | 2020-08-20 | Dalian University Of Technology | Transverse load stepless amplitude modulation device of multiple bolt loosing tester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532852A (en) * | 2021-07-20 | 2021-10-22 | 上海人本精密机械有限公司 | High-low temperature durability and performance testing machine for precision ball screw |
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Application publication date: 20210709 |