CN208091697U - It is a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission - Google Patents
It is a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission Download PDFInfo
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- CN208091697U CN208091697U CN201721877079.1U CN201721877079U CN208091697U CN 208091697 U CN208091697 U CN 208091697U CN 201721877079 U CN201721877079 U CN 201721877079U CN 208091697 U CN208091697 U CN 208091697U
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- lead screw
- bearing
- transmission mechanism
- electric rotating
- rotating machine
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Abstract
The utility model is related to a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission, the bearing tester includes rotary shaft (1), bearing (2) is tested to be mounted in the rotary shaft (1), the loading device includes fixture (3), and electric rotating machine-lead screw transmission mechanism-spring assembly of the axially symmetric and radial symmetric setting of fixture (3) surrounding setting, wherein lead screw transmission mechanism includes shaft coupling (51), lead screw bearing (52), feed screw nut (53), lead screw (54) and bearing block (55), the electric rotating machine is sequentially connected lead screw bearing (52) and lead screw (54) by shaft coupling (51), feed screw nut (53) is set on lead screw (54), bearing block (55) is arranged in lead screw (54) bottom, and connecting spring.Compared with prior art, the utility model has many advantages, such as that internal combustion engine real working condition load may be implemented.
Description
Technical field
The utility model is related to a kind of loading devices of bearing tester, more particularly, to a kind of axis based on screw rod transmission
Testing machine is held with radially alternating load charger.
Background technology
Internal combustion engine is widely used in automobile, ship, aircraft, tank, railway locomotive, agricultural machinery, engineering machinery, power generation
Multiple industries such as unit, play a very important role as power-equipment in national economy.Include work in internal combustion engine
Plug-cylinder sleeve, piston ring-cylinder liner, bent axle-bearing and cam-tappet etc. are several to important friction pair, wherein crankshaft bearing, including
Base bearing and the connecting-rod bearing (since the size and Orientation of such bearing working load all changes over time, are thus generically referred to as moving
Load bearings), it is the most key one of the friction pair of internal combustion engine, it not only influences the reliability of internal combustion engine and durable
Property, also affect the potentiality that internal combustion engine is further strengthened.
The performance and its reliability of bearing are the most important performance indicators of bearing, but due to influencing bearing performance factor too
More, it is a kind of effective way to carry out bearing test.Bearing test is essential and basic important in design bearing and manufacturing process
Verification process.The important parameter that the load load of test bearing is tested as bearing tester, accuracy directly affect bearing
Test result.Bearing test device loading characteristic traditional at present is single, can not achieve the load of changeable load, and true interior
Dynamic load bearing is often in alternating load in combustion engine, therefore traditional bearing test is difficult to realize engine dynamic load axis with loading device
The alternating load load held.
Invention content
The purpose of this utility model is exactly to provide one kind in order to overcome the problems of the above-mentioned prior art and may be implemented
The load of internal combustion engine real working condition load based on the radially alternating load charger of the bearing tester of screw rod transmission.
The purpose of this utility model can be achieved through the following technical solutions：A kind of bearing test based on screw rod transmission
The radially alternating load charger of machine, the bearing tester includes rotary shaft, and subject bearing is mounted on the rotary shaft
On, which is characterized in that the loading device includes the rotation of the axially symmetric and radial symmetric setting of fixture and the setting of fixture surrounding
Rotating motor-lead screw transmission mechanism-spring assembly, each electric rotating machine-lead screw transmission mechanism-spring assembly include being sequentially connected rotation
Motor, lead screw transmission mechanism and spring, wherein lead screw transmission mechanism include shaft coupling, lead screw bearing, feed screw nut, lead screw and axis
Bearing, the electric rotating machine are sequentially connected lead screw bearing and lead screw by shaft coupling, and feed screw nut, lead screw bottom are arranged on lead screw
Bearing block, and connecting spring is arranged in portion.
Electric rotating machine-lead screw transmission mechanism-the spring assembly includes component A, component B, component C and component D, wherein
Both sides are axially and symmetrically arranged above and below fixture in component A and component D, apply axial alternating load, group to the subject bearing in fixture
Part B and component C radial symmetrics are arranged at left and right sides of fixture, apply radially alternating load to the subject bearing in fixture.
The component A includes：Electric rotating machine A, lead screw transmission mechanism A, spring A and attachment device A, the motor A
By the one end lead screw transmission mechanism A connecting spring A, the spring A other ends pass through attachment device A jockeies；
Component B includes：Electric rotating machine B, lead screw transmission mechanism B, spring B and attachment device B, the electric rotating machine B are logical
The one end lead screw transmission mechanism B connecting spring B is crossed, the spring B other end passes through attachment device B jockeies；
Component C includes：Electric rotating machine C, lead screw transmission mechanism C, spring C and attachment device C, the electric rotating machine C are logical
The one end lead screw transmission mechanism C connecting spring C is crossed, the spring C other ends pass through attachment device C jockeies；
Component D includes：Electric rotating machine D, lead screw transmission mechanism D, spring D and attachment device D, the electric rotating machine D are logical
The one end lead screw transmission mechanism D connecting spring D is crossed, the spring D other ends pass through attachment device D jockeies.
Shaft coupling connects electric rotating machine A, lead screw connecting spring A in the lead screw transmission mechanism A.
Lead screw transmission mechanism B, lead screw transmission mechanism C, the structure of lead screw transmission mechanism D and the lead screw transmission mechanism A
Structure it is identical.
The fixture is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture at bulk, and
The one side that upper fixture and lower fixture fit respectively sets a semicircular indentations, and the circumferential notch being combined into matches with subject bearing.
The upper fixture upper surface is plane, is connect with attachment device A, and a semi-circular recesses are equipped in lower surface, with
Subject bearing matches；The lower surface of lower fixture is plane, is connect with attachment device D, and upper surface is equipped with a semi-circular recesses, with
Subject bearing matches；
After upper fixture and lower fixture are closed, left side is connect with attachment device B, and right side is connect with attachment device C.
The bearing tester further includes control system, the control system and electric rotating machine A, electric rotating machine B, electric rotating
Machine C, electric rotating machine D are connected, and the rotation angle of electric rotating machine are controlled by computer, and then change the stretching/compressing amount of spring,
The elastic force for controlling spring, may be implemented the load of bearing alternating load, in conjunction with the real working condition condition of internal combustion engine, passes through computer
The variable quantity for controlling the rotation angle and time of electric rotating machine, may be implemented the load of internal combustion engine real working condition load.Utilize this
The radially alternating load charger of bearing helps to carry out engine dynamic load bearing test.
Bearing tester control system controls the rotation of rotary shaft, and bearing may be implemented with given rotation speed operation.Rotation
The change of motor rotation angle is controlled by bearing tester control system, and the change of electric rotating machine rotation angle can influence
The stretching/compressing amount of spring.Due to the change of the stretching/compressing amount of spring, spring can apply size not in chucking surface
Same, direction-agile active force.By adding multiple electric rotating machine-lead screw transmission mechanism-spring units in fixture different zones
The load of the radially alternating load of bearing may be implemented.
The subject bearing surface is additionally provided with a temperature sensor, which connects control system.Acquire axis
The signal in operation process is held, the operational situation of bearing is monitored.
Compared with prior art, the utility model has the following advantages：
1, the rotation angle of electric rotating machine is controlled by computer, and then changes the stretching/compressing amount of spring, controls spring
Elastic force, the load of bearing alternating load may be implemented.
2, in conjunction with the real working condition condition of internal combustion engine, the change of the rotation angle and time of electric rotating machine is controlled by computer
The load of internal combustion engine real working condition load may be implemented in change amount.Contributed to out using the radially alternating load charger of the bearing
Open up engine dynamic load bearing test.
Description of the drawings
Fig. 1 is the radially alternating load charger schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model lead screw transmission mechanism part；
In figure：1 is rotary shaft, and 2 be subject bearing, and 3 be fixture, and 4 be electric rotating machine A, and 5 be lead screw transmission mechanism A, and 51 are
Shaft coupling, 52 be lead screw bearing, 53 be feed screw nut, 54 be lead screw, 55 be bearing block, 6 be spring A, and 7 be attachment device A, 8
It is lead screw transmission mechanism B for electric rotating machine B, 9,10 be spring B, and 11 be attachment device B, and 12 be attachment device C, and 13 be spring C,
14 be lead screw transmission mechanism C, and 15 be electric rotating machine C, and 16 be attachment device D, and 17 be spring D, and 18 be lead screw transmission mechanism D, 19
It is temperature sensor for electric rotating machine D, 20.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission, the axis
It includes rotary shaft 1 to hold testing machine, and subject bearing 2 is mounted in the rotary shaft 1, which includes fixture 3 and fixture
Electric rotating machine-lead screw transmission mechanism-spring assembly of the axially symmetric and radial symmetric setting of 3 surroundings setting, wherein axial right
Electric rotating machine-lead screw transmission mechanism-spring assembly of setting is claimed to apply axial alternating load, diameter to the subject bearing 2 in fixture 3
Radially alternating load is applied to the subject bearing 2 in fixture 3 to symmetrically arranged electric rotating machine-lead screw transmission mechanism-spring assembly
Lotus.
Electric rotating machine-lead screw transmission mechanism-the spring assembly includes component A, component B, component C and component D, wherein
Axially and symmetrically setting is arranged in about 3 both sides of fixture, component B and component C radial symmetrics in fixture 3 or so two component A and component D
Side.
Wherein, the component A includes：Electric rotating machine A4, lead screw transmission mechanism A5, spring A6 and attachment device A7, institute
The motor A4 stated passes through attachment device A7 jockeies by the one end lead screw transmission mechanism A5 connecting spring A6, the spring A6 other ends
3；Component B includes：Electric rotating machine B8, lead screw transmission mechanism B9, spring B 10 and attachment device B11, the electric rotating machine B8 are logical
The one end lead screw transmission mechanism B9 connecting spring B10 is crossed, 10 other end of spring B passes through attachment device B11 jockeies 3；Component C packets
It includes：Electric rotating machine C15, lead screw transmission mechanism C14, spring C13 and attachment device C12, the electric rotating machine C15 pass through lead screw
The one end transmission mechanism C14 connecting spring C13, the spring C13 other ends pass through attachment device C12 jockeies 3；Component D includes：Rotation
Rotating motor D19, lead screw transmission mechanism D18, spring D17 and attachment device D16, the electric rotating machine D19 pass through screw rod transmission
The one end mechanism D18 connecting spring D17, the spring D17 other ends pass through attachment device D16 jockeies 3.
As shown in Fig. 2, the lead screw transmission mechanism A5 includes shaft coupling 51, lead screw bearing 52, feed screw nut 53, lead screw
54 and bearing block 55, the electric rotating machine A4 are sequentially connected lead screw bearing 52 and lead screw 54 by shaft coupling 51, on lead screw 54
Feed screw nut 53 is set, and bearing block 55, and connecting spring A6 is arranged in 54 bottom of lead screw；Electric rotating machine A4 driving lead screws 54 move,
It controls spring A6 and stretching or compressive deformation occurs, alternating load is applied to the subject bearing 2 in fixture 3.The screw rod transmission
Mechanism B9, lead screw transmission mechanism C14, the structure of lead screw transmission mechanism D18 are identical as the structure of lead screw transmission mechanism A5.
The fixture 3 is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture at bulk, and
The one side that upper fixture and lower fixture fit respectively sets a semicircular indentations, and the circumferential notch being combined into matches with subject bearing 2.
The upper fixture upper surface is plane, is connect with attachment device A7, and a semi-circular recesses are equipped in lower surface, with subject bearing
2 match；The lower surface of lower fixture is plane, is connect with attachment device D16, and upper surface is equipped with a semi-circular recesses, with subject
Bearing 2 matches；After upper fixture and lower fixture are closed, left side is connect with attachment device B11, and right side is connect with attachment device C12.
Bearing 2 is tested to be mounted in rotary shaft 1, meanwhile, subject bearing 2 is positioned over inside fixture 3.Rotary shaft 1 is by bearing
Testing machine drives.In addition, convert rotational motion is linear motion by synchronous belt drive mechanism A 5 by electric rotating machine A 4, in turn
It controls spring A 6 and stretching/compressing deformation occurs, spring A 6 is connected by attachment device A7 with fixture 3, and bearing loading force is applied.
Similar, convert rotational motion is linear motion by synchronous belt drive mechanism B 9 by electric rotating machine B 8, and then controls spring B
10 occur stretching/compressing deformation, and spring B 10 is connected by attachment device B 11 with fixture 3, apply bearing loading force；Electric rotating
Convert rotational motion is linear motion by synchronous belt drive mechanism C 14 by machine C 15, and then is controlled spring C 13 and drawn
/ compressive deformation is stretched, spring C 13 is connected by attachment device C 12 with fixture 3, and bearing loading force is applied；Electric rotating machine D 19 is logical
It is linear motion that synchronous belt drive mechanism D 18, which is crossed, by convert rotational motion, and then controls spring D 17 and stretching/compressing shape occurs
Become, spring D 17 is connected by attachment device D 16 with fixture 3, and bearing loading force is applied.
Bearing tester control system and electric rotating machine A4, electric rotating machine B 8, electric rotating machine C 15 and electric rotating machine D
19 are connected.Bearing tester control system controls rotary shaft 1 and rotates, and realizes bearing with given rotation speed operation.Meanwhile electric rotating
The operation of machine A4, electric rotating machine B 8, electric rotating machine C 15 and electric rotating machine D 19 are also controlled by bearing tester control system
System.2 surface of subject bearing is additionally provided with a temperature sensor 20, which connects control system, acquires bearing operation
Signal in the process monitors the operational situation of bearing.
Claims (9)
1. a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission, the bearing tester includes
Rotary shaft (1), subject bearing (2) are mounted in the rotary shaft (1), which is characterized in that and the loading device includes fixture (3),
And electric rotating machine-lead screw transmission mechanism-spring assembly of the axially symmetric and radial symmetric setting of fixture (3) surrounding setting,
Each electric rotating machine-lead screw transmission mechanism-spring assembly include be sequentially connected electric rotating machine, lead screw transmission mechanism and spring, wherein
Lead screw transmission mechanism includes shaft coupling (51), lead screw bearing (52), feed screw nut (53), lead screw (54) and bearing block (55), institute
The electric rotating machine stated is sequentially connected lead screw bearing (52) and lead screw (54) by shaft coupling (51), and lead screw spiral shell is arranged on lead screw (54)
Bearing block (55), and connecting spring is arranged in female (53), lead screw (54) bottom.
2. it is according to claim 1 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, electric rotating machine-lead screw transmission mechanism-the spring assembly includes component A, component B, component C and component D,
Axially and symmetrically setting applies axis to wherein component A and component D in fixture (3) both sides up and down to the subject bearing (2) in fixture (3)
To alternating load, component B and the setting of component C radial symmetrics are at left and right sides of fixture (3), to the subject bearing (2) in fixture (3)
Apply radially alternating load.
3. it is according to claim 2 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, the component A includes：Electric rotating machine A (4), lead screw transmission mechanism A (5), spring A (6) and attachment device A
(7), the motor A (4) passes through connection by lead screw transmission mechanism A (5) connecting spring A (6) one end, spring A (6) other end
Device A (7) jockey (3)；
Component B includes：Electric rotating machine B (8), lead screw transmission mechanism B (9), spring B (10) and attachment device B (11), the rotation
Rotating motor B (8) passes through attachment device B by lead screw transmission mechanism B (9) connecting spring B (10) one end, spring B (10) other end
(11) jockey (3)；
Component C includes：Electric rotating machine C (15), lead screw transmission mechanism C (14), spring C (13) and attachment device C (12), it is described
Electric rotating machine C (15) is filled by lead screw transmission mechanism C (14) connecting spring C (13) one end, spring C (13) other ends by connecting
Set C (12) jockey (3)；
Component D includes：Electric rotating machine D (19), lead screw transmission mechanism D (18), spring D (17) and attachment device D (16), it is described
Electric rotating machine D (19) is filled by lead screw transmission mechanism D (18) connecting spring D (17) one end, spring D (17) other ends by connecting
Set D (16) jockey (3).
4. it is according to claim 3 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, shaft coupling (51) connection electric rotating machine A (4) in the lead screw transmission mechanism A (5), lead screw (54) connect bullet
Spring A (6).
5. it is according to claim 4 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, the structure of the lead screw transmission mechanism B (9), lead screw transmission mechanism C (14), lead screw transmission mechanism D (18) with
The structure of lead screw transmission mechanism A (5) is identical.
6. it is according to claim 2 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, the fixture (3) is made of the upper fixture and lower fixture of mirror symmetry, upper fixture and lower fixture are blocking
Shape, and the one side to fit in upper fixture and lower fixture respectively sets a semicircular indentations, the circumferential notch being combined into and subject bearing
(2) match.
7. it is according to claim 6 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, the upper fixture upper surface is plane, it is connect with attachment device A (7), it is semicircle recessed that one is equipped in lower surface
Slot matches with subject bearing (2)；The lower surface of lower fixture is plane, is connect with attachment device D (16), and upper surface is equipped with one
Semi-circular recesses match with subject bearing (2)；
After upper fixture and lower fixture are closed, left side is connect with attachment device B (11), and right side is connect with attachment device C (12).
8. it is according to claim 2 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, the bearing tester further includes control system, the control system and electric rotating machine A (4), electric rotating machine B
(8), electric rotating machine C (15), electric rotating machine D (19) are connected, meanwhile, the rotary speed of control rotary shaft (1).
9. it is according to claim 2 a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission,
It is characterized in that, described subject bearing (2) surface is additionally provided with a temperature sensor (20), the temperature sensor (20) connection control
System processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877079.1U CN208091697U (en) | 2017-12-28 | 2017-12-28 | It is a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877079.1U CN208091697U (en) | 2017-12-28 | 2017-12-28 | It is a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208091697U true CN208091697U (en) | 2018-11-13 |
Family
ID=64064912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721877079.1U Expired - Fee Related CN208091697U (en) | 2017-12-28 | 2017-12-28 | It is a kind of based on the radially alternating load charger of the bearing tester of screw rod transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208091697U (en) |
-
2017
- 2017-12-28 CN CN201721877079.1U patent/CN208091697U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20201228 |