CN202195021U - Clearance eliminating device of guide screw rod - Google Patents
Clearance eliminating device of guide screw rod Download PDFInfo
- Publication number
- CN202195021U CN202195021U CN2011203066356U CN201120306635U CN202195021U CN 202195021 U CN202195021 U CN 202195021U CN 2011203066356 U CN2011203066356 U CN 2011203066356U CN 201120306635 U CN201120306635 U CN 201120306635U CN 202195021 U CN202195021 U CN 202195021U
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- China
- Prior art keywords
- screw
- nut
- screw rod
- moving beam
- spring
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- Expired - Fee Related
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- 210000004907 gland Anatomy 0.000 claims description 12
- 238000012360 testing method Methods 0.000 abstract description 15
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract 3
- 238000007906 compression Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
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Abstract
The utility model discloses a clearance eliminating device of a guide screw rod, which mainly solves the problems that the transmission process of a lower beam of the existing testing machine is not stable, and axial clearances exist during the stress. The device comprises a moving beam and a screw rod; the screw rod is arranged on the moving beam; a screw is arranged on the outer side of the screw rod; a worm wheel is arranged on the outer side of the screw; a compression nut is arranged at the top end of the screw; a bolt is arranged on the compression nut; a clearance eliminating nut is arranged on the inner side of the compression nut; a guide pin is arranged between the clearance eliminating nut and the screw; a spring is arranged above the clearance eliminating nut; and a turnbuckle is covered on the outer side of the spring. When the screw rod rotates and is stressed upward, the moving beam is lifted upward all the time, a lower combined surface of threads of the screw contacts with an upper combined surface of the screw rod all the time, the clearance between a screw rod pair is eliminated, the whole rigidity of the testing machine can be improved, the device is stable in transmission, and the effective dynamometry scope of the testing machine is enlarged.
Description
Technical field
The utility model relates to a kind of guiding leading screw that on testing machine, uses and eliminates inter space device.
Background technique
Testing machine, in a broad sense, a kind of exactly product or material before coming into operation, the instrument that its quality or performance are verified by designing requirement.Testing machine is very extensive in the application of every profession and trade; At present; Transmission is not arranged the device of eliminating the gap with the leading screw that loads usefulness in testing machine; So just caused in the testing machine drawing process, needed that earlier moving beam is driven screw and move up and be adjacent to the following junction plane of lead screw pair, a platform can appear in test curve.Therefore need a kind of device that is used for the elimination gap on the testing machine, steady to guarantee the moving beam transmission process.
The model utility content
The purpose of the utility model is to provide a kind of guiding leading screw to eliminate inter space device, and this device is provided with nut and spring and the thrust-bearing of eliminating the gap, makes lead screw pair in state transmission of no gap and transmission test power.
The technological scheme that its technical problem of the utility model solution is taked is: the guiding leading screw is eliminated inter space device; Comprise moving beam and leading screw, it is characterized in that described leading screw is located on the moving beam; The outside of leading screw is provided with screw; The outside of screw is provided with worm gear, and the top of screw is provided with gland nut, and gland nut is provided with screw; The inboard of gland nut is provided with the crack nut that disappears, and disappears to be provided with guide finger between crack nut and the screw, and the top of the crack nut that disappears is provided with spring, and the outside of spring is covered with swivel nut.
Described disappearing is provided with thrust-bearing between crack nut and the described spring.
Described screw bottom and described moving beam cooperation place are provided with friction pads.
Compared with prior art; The utlity model has following outstanding beneficial effect: be provided with disappear crack nut, spring and the thrust-bearing of eliminating the gap; Eliminated the lead screw pair gap under transmission process and the stress; Make lead screw pair in state transmission of no gap and transmission test power, improve the complete machine rigidity, the effective side force scope of testing machine is further enlarged.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1 leading screw, 2 moving beams, 3 friction padss, 4 screws, 5 worm gears, 6 guide fingers, the 7 crack nuts that disappear, 8 thrust-bearings, 9 springs, 10 swivel nuts, 11 screws, 12 gland nuts.
Embodiment
As shown in Figure 1.The guiding leading screw is eliminated inter space device, comprises moving beam 2 and leading screw 1, and described leading screw 1 is located on the moving beam 2; The outside of leading screw 1 is provided with screw 4; The outside of screw 4 is provided with worm gear 5, and the top of screw 4 is provided with gland nut 12, and gland nut 12 is provided with screw 11; The inboard of gland nut 12 is provided with the crack nut 7 that disappears, and disappears to be provided with guide finger 6 between crack nut 7 and the screw 4, and the top of the crack nut 7 that disappears is provided with spring 9, and the outside of spring 9 is covered with swivel nut 10.
Described disappearing is provided with thrust-bearing 8 between crack nut 7 and the described spring 9.
Described screw 4 bottoms and described moving beam 2 cooperation places are provided with friction pads 3.Friction pads 3 can effectively cushion screw 4 and the friction that moving beam 2 receives, and prolongs its working life.
During use, leading screw 1 has been formed the lead screw pair that is arranged in testing machine moving beam 2 both sides with screw 4, and the compacted nut 12 of this lead screw pair rotates freely with the Kong Zhongneng that friction pads 3 is fixed on moving beam 2; Above screw 4, be provided with and eliminate the crack nut 7 that disappears that the gap is used; The said crack nut 7 that disappears links together through guide finger 6 and screw 4, can be with screw 4 rotation, and crack nut 7 upper ends thrust-bearings 8 disappear; Pressure spring 9 is arranged above the thrust-bearing 8; The spring 9 jack-up swivel nut 10 that makes progress when being compressed, swivel nut 10 links together through screw thread and gland nut 12, and gland nut 12 links together through screw 11 and moving beam 2; Adjusting bolt Adjusting screw 10 downward pressure springs 9, moving beam 2 upwards lifts under the effect of spring force.Eliminated the lead screw pair gap under transmission process and the stress like this, improved the complete machine rigidity, the effective dynamometry scope of testing machine is further enlarged.
The above; Some principles of the utility model just explain through diagrams; This specification be not be to the utility model be confined to shown in described concrete structure and the Applicable scope; So every the modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Except that the said technical characteristics of specification, all the other technical characteristicss are those skilled in the art's known technology.
Claims (3)
1. the guiding leading screw is eliminated inter space device, comprises moving beam and leading screw, it is characterized in that described leading screw is located on the moving beam, and the outside of leading screw is provided with screw, and the outside of screw is provided with worm gear, and the top of screw is provided with gland nut, and gland nut is provided with screw; The inboard of gland nut is provided with the crack nut that disappears, and disappears to be provided with guide finger between crack nut and the screw, and the top of the crack nut that disappears is provided with spring, and the outside of spring is covered with swivel nut.
2. guiding leading screw according to claim 1 is eliminated inter space device, it is characterized in that described disappearing is provided with thrust-bearing between crack nut and the described spring.
3. guiding leading screw according to claim 1 and 2 is eliminated inter space device, it is characterized in that described screw bottom and described moving beam cooperation place are provided with friction pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066356U CN202195021U (en) | 2011-08-22 | 2011-08-22 | Clearance eliminating device of guide screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203066356U CN202195021U (en) | 2011-08-22 | 2011-08-22 | Clearance eliminating device of guide screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195021U true CN202195021U (en) | 2012-04-18 |
Family
ID=45949933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203066356U Expired - Fee Related CN202195021U (en) | 2011-08-22 | 2011-08-22 | Clearance eliminating device of guide screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453822A (en) * | 2013-09-23 | 2013-12-18 | 中国电子科技集团公司第十四研究所 | Portable bearing rotating precision comprehensive detection platform |
| CN103487535A (en) * | 2012-06-08 | 2014-01-01 | 北京普源精电科技有限公司 | Injection pump of automatic sample injector |
| CN106884947A (en) * | 2017-02-27 | 2017-06-23 | 中北大学 | A kind of multistage trapezoidal screw prevents locking device |
-
2011
- 2011-08-22 CN CN2011203066356U patent/CN202195021U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487535A (en) * | 2012-06-08 | 2014-01-01 | 北京普源精电科技有限公司 | Injection pump of automatic sample injector |
| CN103453822A (en) * | 2013-09-23 | 2013-12-18 | 中国电子科技集团公司第十四研究所 | Portable bearing rotating precision comprehensive detection platform |
| CN103453822B (en) * | 2013-09-23 | 2016-01-13 | 中国电子科技集团公司第十四研究所 | A kind of portable bearing rotation precision comprehensive detection platform |
| CN106884947A (en) * | 2017-02-27 | 2017-06-23 | 中北大学 | A kind of multistage trapezoidal screw prevents locking device |
| CN106884947B (en) * | 2017-02-27 | 2019-05-24 | 中北大学 | A kind of multistage trapezoidal screw prevents locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20140822 |
|
| EXPY | Termination of patent right or utility model |