CN203719826U - Variable-rigidity support structure for flexible support balancing machine - Google Patents
Variable-rigidity support structure for flexible support balancing machine Download PDFInfo
- Publication number
- CN203719826U CN203719826U CN201420052262.8U CN201420052262U CN203719826U CN 203719826 U CN203719826 U CN 203719826U CN 201420052262 U CN201420052262 U CN 201420052262U CN 203719826 U CN203719826 U CN 203719826U
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- Prior art keywords
- roller bearing
- balancing machine
- cylinder
- bearing
- plate
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- Expired - Lifetime
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- 239000000463 material Substances 0.000 claims description 7
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- 230000007547 defect Effects 0.000 abstract 1
- SMDHCQAYESWHAE-UHFFFAOYSA-N benfluralin Chemical compound CCCCN(CC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O SMDHCQAYESWHAE-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a variable-rigidity support structure for a flexible support balancing machine. A vibration body comprises a test rotor, a rotating main shaft, a bearing, a cylinder body, a cylinder body installing plate and a concave block; the concave block is arranged at the upper side of the cylinder body installing plate; a base is supported on the cylinder body installing plate via plate springs at two sides; an L-shaped support plate is fixed on the base between the plate springs at the two sides; a guide rail parallel to the plate springs is arranged at the top surface of the L-shaped support plate; the lower bottom surface of a bottom plate is connected onto the guide rail via a slide block and moves along the guide rail; the upper top surface, close to one side of the cylinder body installing plate, of the bottom plate is provided with a roller bearing correspondingly connected with the concave block; the roller bearing can be clamped in the concave block; a cylinder is arranged at the lower part of the L-shaped support plate; a piston rod of the cylinder is fixedly connected with the slide block at the lower bottom surface of the bottom plate; and the piston rod of the cylinder is parallel to the plate springs. According to the variable-rigidity support structure for the flexible support balancing machine, the structure is simple, the resonance defect that the measuring rotating speed of the flexible support balancing machine reaches a critical point is effectively overcome, and the reliability and the test efficiency are very high.
Description
Technical field
The utility model relates to a kind of stiffness variable supporting structure, especially relates to a kind of stiffness variable supporting structure for soft bearing balancing machine.
Background technology
The large quality disc-like rotor such as water pump vane, automobile clutch has widespread use in productive life.For this class rotor, due to design, material skewness and manufacture the reason such as mismachining tolerance, the rotation of its centroidal axis when working do not overlap, and this situation is called rotor and has amount of unbalance or unbalance.Rotor with excessive amount of unbalance can produce vibration, brings noise, shortens life of product, even bring danger in the time that High Rotation Speed is worked, and therefore rotor is assembled into the front amount of unbalance that must eliminate induced vibration of complete machine, does transient equilibrium.
When rotor is done to transient equilibrium, first need to measure the initial unbalance, of rotor.At present, formed the equilibrator for large quality disc-like rotor of product, taking hard support pattern as main.Be compared to soft underprop mode, hard bearing balan requires the rigidity on support plinth and basis very large on the one hand, needs on the other hand the special vibration transducer that precision is very high to separate amplifying circuit with signal.In other words, the measuring accuracy of hard bearing balan directly depends on above two aspects.Although soft bearing balancing machine can overcome the high request drawback of this two aspect, also there is the deficiency of self: in rotor lifting speed process, need to cross rotating speed critical point, must cause like this strenuous vibration of equilibrator, be i.e. resonance.Because the quality of tested rotor and measurement support unit is larger, resonance effect is more obvious, when serious, can damage physical construction, belt and drive motor etc.
Summary of the invention
For overcoming the deficiency of soft bearing balancing machine, the purpose of this utility model is to provide a kind of stiffness variable supporting structure for soft bearing balancing machine, resonance while effectively having avoided soft bearing balancing machine lifting speed, for the measurement of the large quality rotor unbalance value of vertical soft bearing balancing machine.
The technical scheme of employing of the present utility model is as follows:
The vibrating mass of soft bearing balancing machine of the present utility model comprises tested rotor, rotary main shaft, bearing and cylindrical shell, cylindrical shell installing plate and spill piece, and cylindrical shell installing plate upside is provided with spill piece; Stiffness variable supporting structure comprises base, leaf spring, L shaped back up pad, slide block, guide rail, cylinder and roller bearing, base passes through the supported by plate spring of both sides on the cylindrical shell installing plate of vibrating mass, L shaped back up pad is fixed on the base between the leaf spring of both sides, L shaped support plate top surface is provided with the guide rail that is parallel to leaf spring, base plate bottom surface is arranged on guide rail and along guide rail and is moved by slide block, base plate is provided with the roller bearing of connection corresponding to spill piece near the upper end face of cylindrical shell installing plate one side, roller bearing can snap in spill piece; L shaped back up pad bottom is provided with cylinder, and the piston rod of cylinder is fixedly connected with the slide block of base plate bottom surface, and the piston rod of cylinder is parallel with leaf spring.
Described roller bearing and to snap between the Baltimore groove of spill piece be interference fit.
The bottom land of described spill piece Baltimore groove is square, and notch is hydraucone, and width of rebate is greater than the external diameter of roller bearing, and bottom land width is less than the external diameter of roller bearing, is interference fit.
Described roller bearing surface is coated with polyurethane material, in the time that roller bearing snaps in spill piece, and the polyurethane material generation deformation on roller bearing surface.
The hydraucone gradient of described spill piece Baltimore groove notch is 20～30 degree.
When the piston rod of described cylinder is released full stroke, roller bearing is stuck in spill piece Baltimore groove and rigidly connects tactile with bottom land.
The beneficial effect the utlity model has is:
1) simple in structure;
2) effectively overcome soft bearing balancing machine and measured rotating speed and reach the resonance drawback of critical point;
3) there is very high reliability and testing efficiency.
Brief description of the drawings
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is the structure connection diagram of the utility model supporting structure.
Fig. 3 is the structural representation of spill piece.
In figure: the tested rotor of 1-, 2-rotary main shaft, 3-bearing and cylindrical shell, 4-cylindrical shell installing plate, 5-leaf spring, 6-spill piece, 7-roller bearing, 8-base plate, 9-base, 10-link, 11-cylinder, 12-slide block, 13-guide rail, 14-L shape back up pad, 15-Baltimore groove.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises: the vibrating mass of soft bearing balancing machine comprises tested rotor 1, rotary main shaft 2, bearing and cylindrical shell 3, cylindrical shell installing plate 4 and spill piece 6, and cylindrical shell installing plate 4 upsides are provided with spill piece 6, stiffness variable supporting structure comprises base 9, leaf spring 5, L shaped back up pad 14, slide block 12, guide rail 13, cylinder 11 and roller bearing 7, base 9 is supported on by the leaf spring 5 of both sides on the cylindrical shell installing plate 4 of vibrating mass, L shaped back up pad 14 is fixed on the base 9 between the leaf spring 5 of both sides, L shaped back up pad 14 end faces are provided with the guide rail 13 that is parallel to leaf spring 5, base plate 8 bottom surfaces are arranged on guide rail 13 and along guide rail and are moved by slide block 12, base plate 8 is provided with the roller bearing 7 of connection corresponding to spill piece 6 near the upper end face of cylindrical shell installing plate 4 one sides, roller bearing 7 can snap in spill piece 6, L shaped back up pad 14 bottoms are provided with cylinder 11, and the piston rod of cylinder 11 is fixedly connected with the slide block 12 of base plate 8 bottom surfaces, and the piston rod of cylinder 11 is parallel with leaf spring 5.
Roller bearing 7 and to snap between the Baltimore groove of spill piece 6 be interference fit.
As shown in Figure 3, the bottom land of spill piece 6 Baltimore grooves is square, and notch is hydraucone, and width of rebate is greater than the external diameter of roller bearing 7, and bottom land width is less than the external diameter of roller bearing 7, is interference fit.
Roller bearing 7 surfaces are coated with polyurethane material, and roller bearing 7 is polyurethane cladded type roller bearing, in the time that roller bearing 7 snaps in spill piece 6, and the polyurethane material generation deformation on roller bearing 7 surfaces.
The hydraucone of spill piece 6 Baltimore groove notches has constant slope, and gradient is 20～30 degree.
When the piston rod of cylinder 11 is released full stroke, roller bearing 7 is stuck in spill piece 6 Baltimore grooves and rigidly connects tactile with bottom land.
The vibrating mass being made up of rotor, rotary main shaft and cylindrical shell is bearing in base by leaf spring, forms soft underprop.
At grade, on the cylindrical shell installing plate 4 of vibrating mass, fix spill piece 6.When rotor lifting speed, cylinder advances, and forces roller bearing 7 to be clamp-oned in the Baltimore groove of spill piece 6, makes vibrating mass be bearing in base by means of large rigidity back up pad, increases its rigidity and becomes hard supporting; When amount of unbalance is measured, cylinder exits, and drives roller bearing to separate with spill piece, recovers soft underprop.
When assembling, when cylinder 11 piston rods stretch out full stroke, roller bearing is just clamp-oned the bottom land of spill piece 6, and its object has two, and the one, prevent leaf spring 5 tensions, the 2nd, when vibrating mass motion, on its swaying direction, increase constraining force, namely increase the swing rigidity of vibrating mass.
Concrete implementation process of the present utility model:
In the time of tested rotor 1 lifting speed, the piston rod of cylinder 11 advances, and forces roller bearing 7 to be pressed in the Baltimore groove of spill piece 6, makes vibrating mass be bearing in base by means of large rigidity back up pad, increases its rigidity and becomes hard supporting; When tested rotor 1 be raised to specify rotating speed carry out amount of unbalance measure time, cylinder 11 exits, drive roller bearing 7 separate with spill piece 6, recover soft underprop.Adopt this stiffness variable supporting structure, can effectively avoid the resonance of soft bearing balancing machine, greatly improved its reliability and testing efficiency.
Above-mentioned embodiment is used for the utility model of explaining; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment and change that the utility model is made, all fall into protection domain of the present utility model.
Claims (6)
1. the stiffness variable supporting structure for soft bearing balancing machine, the vibrating mass of soft bearing balancing machine comprises tested rotor (1), rotary main shaft (2), bearing and cylindrical shell (3), cylindrical shell installing plate (4) and spill piece (6), cylindrical shell installing plate (4) upside is provided with spill piece (6), it is characterized in that: stiffness variable supporting structure comprises base (9), leaf spring (5), L shaped back up pad (14), slide block (12), guide rail (13), cylinder (11) and roller bearing (7), base (9) is supported on by the leaf spring (5) of both sides on the cylindrical shell installing plate (4) of vibrating mass, L shaped back up pad (14) is fixed on the base (9) between the leaf spring (5) of both sides, L shaped back up pad (14) end face is provided with the guide rail (13) that is parallel to leaf spring (5), base plate (8) bottom surface is arranged on guide rail (13) above and is moved along guide rail by slide block (12), the upper end face of close cylindrical shell installing plate (4) one sides of base plate (8) is provided with the roller bearing (7) with the corresponding connection of spill piece (6), roller bearing (7) can snap in spill piece (6), L shaped back up pad (14) bottom is provided with cylinder (11), and the piston rod of cylinder (11) is fixedly connected with the slide block (12) of base plate (8) bottom surface, and the piston rod of cylinder (11) is parallel with leaf spring (5).
2. a kind of stiffness variable supporting structure for soft bearing balancing machine according to claim 1, is characterized in that: described roller bearing (7) and to snap between the Baltimore groove of spill piece (6) be interference fit.
3. a kind of stiffness variable supporting structure for soft bearing balancing machine according to claim 2, it is characterized in that: the bottom land of described spill piece (6) Baltimore groove is square, notch is hydraucone, width of rebate is greater than the external diameter of roller bearing (7), bottom land width is less than the external diameter of roller bearing (7), is interference fit.
4. a kind of stiffness variable supporting structure for soft bearing balancing machine according to claim 1 and 2, it is characterized in that: described roller bearing (7) surface is coated with polyurethane material, in the time that roller bearing (7) snaps in spill piece (6), the polyurethane material generation deformation on roller bearing (7) surface.
5. a kind of stiffness variable supporting structure for soft bearing balancing machine according to claim 1, is characterized in that: the hydraucone gradient of described spill piece (6) Baltimore groove notch is 20～30 degree.
6. a kind of stiffness variable supporting structure for soft bearing balancing machine according to claim 1, it is characterized in that: when the piston rod of described cylinder (11) is released full stroke, roller bearing (7) is stuck in and rigidly connects tactile with bottom land in spill piece (6) Baltimore groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052262.8U CN203719826U (en) | 2014-01-27 | 2014-01-27 | Variable-rigidity support structure for flexible support balancing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052262.8U CN203719826U (en) | 2014-01-27 | 2014-01-27 | Variable-rigidity support structure for flexible support balancing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719826U true CN203719826U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420052262.8U Expired - Lifetime CN203719826U (en) | 2014-01-27 | 2014-01-27 | Variable-rigidity support structure for flexible support balancing machine |
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| Country | Link |
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| CN (1) | CN203719826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743522A (en) * | 2014-01-27 | 2014-04-23 | 杭州集智机电股份有限公司 | Rigidity-variable support structure for flexible support balancing machine |
| CN109540503A (en) * | 2018-11-27 | 2019-03-29 | 合肥万向钱潮汽车零部件有限公司 | A kind of intermediate swing frame structure of multi-support transmission shaft soft-bearing dynamic balance machine |
-
2014
- 2014-01-27 CN CN201420052262.8U patent/CN203719826U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743522A (en) * | 2014-01-27 | 2014-04-23 | 杭州集智机电股份有限公司 | Rigidity-variable support structure for flexible support balancing machine |
| CN103743522B (en) * | 2014-01-27 | 2016-02-03 | 杭州集智机电股份有限公司 | For the stiffness variable supporting structure of soft bearing balancing machine |
| CN109540503A (en) * | 2018-11-27 | 2019-03-29 | 合肥万向钱潮汽车零部件有限公司 | A kind of intermediate swing frame structure of multi-support transmission shaft soft-bearing dynamic balance machine |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |