CN205898454U - Loading jar of reliable operation - Google Patents
Loading jar of reliable operation Download PDFInfo
- Publication number
- CN205898454U CN205898454U CN201620859929.4U CN201620859929U CN205898454U CN 205898454 U CN205898454 U CN 205898454U CN 201620859929 U CN201620859929 U CN 201620859929U CN 205898454 U CN205898454 U CN 205898454U
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- nut
- loading
- screw rod
- cylinder
- load
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Abstract
The utility model relates to a loading jar of reliable operation, including the cylinder, loading nut and loading screw rod, loading screw rod and loading nut screw -thread fit, the loading nut with the mode movable fit of sharply sliding along the cylinder in the cylinder, the cooperation of loading screw rod fixed position rotation is in the cylinder, the loading nut includes nut body and clearance elimination subassembly, the hole of nut body has screw hole section and assembly vestibule, be formed with axial backstop face between screw hole section and the assembly vestibule, loading screw rod and screw hole section screw -thread fit, component Assembly in pilot hole intracavity is eliminated in the clearance, the clearance is eliminated the subassembly and is included pretension spring and nut pretightening, pretension bullet spring shaft to one end elasticity butt on axial backstop face, pretension bullet spring shaft to other end butt on nut pretightening, the nut pretightening screw thread revolves the dress on the loading screw rod, the assembly vestibule slides nut pretightening and the mode of circumference locking is assembled at the pilot hole intracavity in order following. It is reasonable to have structural design, the stable and accurate reliable advantage of loading.
Description
Technical field
This utility model is related to the loading cylinder being applied on testing equipment, test object is applied with loading force.
Background technology
In existing bearing test equipment, need the stressing conditions under the actually used operating mode to bearing to be simulated, need
Loading force is applied to bearing.Loading cylinder in existing test equipment has using cylinder, hydraulic cylinder or Motor drive nut-screw
Mechanism realizes loading, and it is unreasonable that the loading cylinder of current nut-screw mechanism structure form has a structure design, there is reliable operation
Property the difference and low defect of loading accuracy.
Content of the invention
The present utility model purpose: for overcoming the defect of prior art presence, this utility model provides a kind of structure to set
Meter rationally, loads stable and accurately and reliably loads cylinder.
For achieving the above object, this utility model provides following technical scheme:
A kind of loading cylinder of reliable operation, including cylinder barrel, loads nut and loads screw rod, load screw rod and load nut spiral shell
Stricture of vagina coordinates, and loads nut dynamic cooperation in the way of along cylinder barrel straight line sliding and, in cylinder barrel, loads screw rod position rotating and coordinate in cylinder
In cylinder it is characterised in that: described loading nut includes nut body and gap and eliminates assembly, and the endoporus of nut body has
Screw thread hole section and assembling vestibule, are formed with axial stop face, described loading screw rod and spiral shell between screw thread hole section and assembling vestibule
Pit section screw thread coordinates, and gap eliminates assembly and is assemblied in pilot hole intracavity, and gap eliminates assembly and includes preloading spring and pretension
Nut, preloading spring axial direction one end elasticity is connected on axial stop face, and the preloading spring axial direction other end is connected to pre-load nut
On, pre-load nut screw thread spinning on described loading screw rod, pre-load nut with can slide along assembling vestibule and circumferential locking side
Formula is assemblied in described pilot hole intracavity.
By adopting technique scheme, load nut and load between screw rod under the spring-force driven dual of preloading spring,
Realizing eliminating the axial gap under screw thread cooperation, thus avoiding the micro zero load loading screw rod with loading during nut action, improving
Load accuracy and reliability, simultaneously because under the pretightning force effect of preloading spring, loading nut and load screw rod cooperation closely
Reliable, it is to avoid vibrations, shake during equipment operation, abnormal sound particularly under no-load condition, improve service life.
Preferably, described preloading spring is to be made up of the stacking of some disk springs, and has forward and reverse phase in preloading spring
To the folded disk spring setting.
Each disk spring in described preloading spring becomes positive and negative intersecting successively.
Under said structure design, it is little that disk spring has an installing space, easy for installation and after installing to load nut and
Load the reliable advantage of pretension between screw rod.
Preferably, described pre-load nut is provided with rotation stop disk, and rotation stop disk includes the disk body being fixedly connected with pre-load nut, disk
Body edge is extended with rotation stop finger, and the pilot hole intracavity of described nut body is provided with the rotation stop guide groove axially extending, described
Rotation stop finger stretches into sliding guiding cooperation in rotation stop guide groove.
Under said structure design, pre-load nut reaches pre-load nut through rotation stop disk and the cooperation of rotation stop guide groove can be along assembling vestibule
Slide and circumferential locking, there is compact conformation, processing, the advantage of easy accessibility.
Preferably, there is in described cylinder barrel bearing support bore, supporting shaft holder in the hole be provided with two-direction thrust bearing and
Rolling bearing, described loading screw rod is bearing in cylinder barrel through two-direction thrust bearing and rolling bearing.
Under said structure design, improve the installation reliability loading screw rod and action stability, having working stability can
The advantage leaned on.
Preferably, offers sliding guide groove with loading on the cavity inner wall of nut corresponding matching in described cylinder barrel, described plus
The outer circumference surface carrying nut is provided with keyway, is fixed with feather key in described keyway, and feather key protrudes the excircle loading nut
Face is simultaneously stretched in described sliding guide groove, and with sliding guide groove circumference locking and straight line sliding guiding coordinates feather key.
Under said structure design, load nut with cylinder barrel fit structure simply, be easy to process and dismount.
Preferably, it is provided with some annular oil grooves with the cavity inner wall loading nut corresponding matching in described cylinder barrel, annular
Oil groove is helical form, and nut body is provided with Oil Guide through hole corresponding with preloading spring position, Oil Guide through hole connection assembling vestibule
And annular oil groove.
Under said structure design, realize realizing lubricating oil to loading nut and loading nut with loading screw rod cooperation position
Lubrication, improves the reliability of work and increases the service life；Annular oil groove is to exist it is ensured that loading nut under helical design
Slipping, has annular oil groove to be connected with Oil Guide through hole all the time in cylinder barrel.
Below in conjunction with the accompanying drawings this utility model is further described.
Brief description
Fig. 1 loads cylinder axonometric chart for this utility model specific embodiment；
Fig. 2 loads cylinder structure schematic diagram for this utility model specific embodiment；
Fig. 3 is this utility model specific embodiment cylinder structure schematic diagram；
Fig. 4 loads screw rod for this utility model specific embodiment and loads nut screw connection structural representation.
Specific embodiment
As shown in Figures 1 to 4, the loading cylinder of a kind of reliable operation disclosed in this utility model, including cylinder barrel 1, loads spiral shell
Female 2 coordinate with loading nut 2 screw thread with loading screw rod 3, loading screw rod 3, have and supply loading nut 2 to be slidably matched in cylinder barrel 1
Guide cavity, loads nut 2 dynamic cooperation in the way of along cylinder barrel 1 straight line sliding and, in cylinder barrel 1, loads the cooperation of screw rod 3 position rotating and exist
In cylinder barrel 1, there is in described cylinder barrel 1 bearing support bore, supporting shaft holder in the hole is provided with two-direction thrust bearing 4 and the axis of rolling
Hold 5, described loading screw rod 3 is bearing in cylinder barrel 1 through two-direction thrust bearing 4 and rolling bearing 5, so ensures to load Screw rod bearingses
Reliable and load reliable, described loading nut 2 includes nut body 21 and gap eliminates assembly, nut body 21 interior
Hole has screw thread hole section 211 and assembling vestibule 212, is formed with axial stop face between screw thread hole section 211 and assembling vestibule 212
213, described loading screw rod 3 is coordinated with screw thread hole section 211 screw thread, and gap eliminates assembly and is assemblied in assembling vestibule 212, and gap disappears
Except assembly includes preloading spring 22 and pre-load nut 23, preloading spring 22 axial one end elasticity is connected to axial stop face 213
On, the axial other end of preloading spring 22 is connected on pre-load nut 23, and pre-load nut 23 screw thread spinning is in described loading screw rod 3
On, pre-load nut 23 by can slide along assembling vestibule 212 and circumferential locking in the way of be assemblied in described assembling vestibule 212.Plus
Carry nut and load between screw rod under the spring-force driven dual of preloading spring, realize eliminating the axial gap under screw thread cooperation, from
And avoid the micro zero load loading screw rod with loading during nut action, improve and load accuracy and reliability, simultaneously because pretension
Under the pretightning force effect of spring, load nut and loading screw rod cooperation is closely reliable, it is to avoid vibrations, particularly under no-load condition
Shake during equipment operation, abnormal sound, improve service life.
In this specific embodiment, described preloading spring 22 is to be made up of the stacking of some disk springs 221, and preloading spring 22
In there is the forward and reverse relatively folded disk spring 221 setting.Each disk spring 221 in described preloading spring 22 becomes positive and negative successively
Intersecting.Certainly spring that other have axial elasticity driving force, such as helical spring, ripple spring etc. may also be employed, but
Disk spring stacking is preferentially adopted to constitute.
For convenience of assembling and processing, in described cylinder barrel 1, offer slip with loading on the cavity inner wall of nut 2 corresponding matching
Guide groove 11, the described outer circumference surface loading nut 2 is provided with keyway 214, is fixed with feather key 24 in described keyway 214, guiding
Key 24 protrudes the outer circumference surface loading nut 2 and stretches in described sliding guide groove 11, and feather key 24 is locked with sliding guide groove 11 circumference
Stop and straight line sliding guiding cooperation.Load and feather key is installed in the keyway of nut 2, feather key stretches into be realized in sliding guide groove preventing
Load nut to rotate and play straight line sliding guiding.Described pre-load nut 23 is provided with rotation stop disk 25, rotation stop disk 25 include with advance
The disk body that jack panel 23 is fixedly connected, disk body edge is extended with rotation stop finger 251, the assembling vestibule 212 of described nut body 21
Inside it is provided with the rotation stop guide groove 215 axially extending, described rotation stop finger 251 stretches into sliding guiding cooperation in rotation stop guide groove 215.
So load nut simple with cylinder barrel fit structure, be easy to process and dismount.Certainly as the feasible scheme of this utility model,
Projection can directly be processed on loading nut and pre-load nut outer wall, realize circumferential locking and linear slide guiding cooperation.
For ensureing to load cylinder working reliability, if being provided with the cavity inner wall loading nut 2 corresponding matching in described cylinder barrel 1
Dry annular oil groove 12, annular oil groove 12 is helical form, and nut body 21 is provided with Oil Guide corresponding with preloading spring 22 position and leads to
Hole 216, Oil Guide through hole 216 connection assembling vestibule 212 and annular oil groove 12.Annular oil groove blocks through sliding guide groove and connects, just
Circulation in lubricating oil carries out sufficient lubrication to each several part, improves job stability and increases the service life.
Claims (7)
1. the loading cylinder of a kind of reliable operation, including cylinder barrel, loads nut and loads screw rod, load screw rod and load nut thread
Cooperation, loads nut dynamic cooperation in the way of along cylinder barrel straight line sliding and, in cylinder barrel, loads screw rod position rotating and coordinate in cylinder barrel
Interior it is characterised in that: described loading nut includes nut body and gap and eliminates assembly, and the endoporus of nut body has spiral shell
Pit section and assembling vestibule, are formed with axial stop face, described loading screw rod and screw thread between screw thread hole section and assembling vestibule
Hole section screw thread coordinates, and gap eliminates assembly and is assemblied in pilot hole intracavity, and gap eliminates assembly and includes preloading spring and pretension spiral shell
Mother, preloading spring axial direction one end elasticity is connected on axial stop face, and the preloading spring axial direction other end is connected on pre-load nut,
, on described loading screw rod, pre-load nut is can fill along assembling vestibule slip and in the way of circumferential locking for pre-load nut screw thread spinning
Fit over described pilot hole intracavity.
2. according to claim 1 reliable operation loading cylinder it is characterised in that: described preloading spring be by some dish bullets
Spring stacking is constituted, and has the forward and reverse relatively folded disk spring setting in preloading spring.
3. according to claim 2 reliable operation loading cylinder it is characterised in that: each disk spring in described preloading spring
Become positive and negative intersecting successively.
4. the loading cylinder according to claim 1 or reliable operation described in 2 or 3 it is characterised in that: described pre-load nut is only provided with
Rotating disk, rotation stop disk includes the disk body being fixedly connected with pre-load nut, and disk body edge is extended with rotation stop finger, described nut body
Pilot hole intracavity is provided with the rotation stop guide groove axially extending, and described rotation stop finger stretches into sliding guiding cooperation in rotation stop guide groove.
5. the loading cylinder according to claim 1 or reliable operation described in 2 or 3 it is characterised in that: in described cylinder barrel, there is support shaft
Bearing hole, supporting shaft holder in the hole is provided with two-direction thrust bearing and rolling bearing, and described loading screw rod is through two-direction thrust bearing
It is bearing in cylinder barrel with rolling bearing.
6. the loading cylinder according to claim 1 or reliable operation described in 2 or 3 it is characterised in that: in described cylinder barrel with load nut
Sliding guide groove is offered on the cavity inner wall of corresponding matching, the outer circumference surface of described loading nut is provided with keyway, described keyway
Inside it is fixed with feather key, feather key protrudes and loads the outer circumference surface of nut and simultaneously stretch in described sliding guide groove, feather key and slip
Guide groove circumference locking and straight line sliding guiding cooperation.
7. the loading cylinder according to claim 1 or reliable operation described in 2 or 3 it is characterised in that: in described cylinder barrel with load nut
The cavity inner wall of corresponding matching is provided with some annular oil grooves, and annular oil groove is helical form, and nut body is provided with and pretension bullet
Spring position corresponding Oil Guide through hole, Oil Guide through hole connection assembling vestibule and annular oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859929.4U CN205898454U (en) | 2016-08-09 | 2016-08-09 | Loading jar of reliable operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620859929.4U CN205898454U (en) | 2016-08-09 | 2016-08-09 | Loading jar of reliable operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898454U true CN205898454U (en) | 2017-01-18 |
Family
ID=57781027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620859929.4U Active CN205898454U (en) | 2016-08-09 | 2016-08-09 | Loading jar of reliable operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205898454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280633A (en) * | 2019-07-22 | 2019-09-27 | 南京邮电大学 | High-speed overload full electric servo numerical control bender with multi-operation mode |
| CN113447176A (en) * | 2021-06-17 | 2021-09-28 | 人本股份有限公司 | Double-half outer ring bearing friction torque detection device |
-
2016
- 2016-08-09 CN CN201620859929.4U patent/CN205898454U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280633A (en) * | 2019-07-22 | 2019-09-27 | 南京邮电大学 | High-speed overload full electric servo numerical control bender with multi-operation mode |
| CN113447176A (en) * | 2021-06-17 | 2021-09-28 | 人本股份有限公司 | Double-half outer ring bearing friction torque detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 16 No. 325000 Yong Jiang Road, hi tech Industrial Development Zone, Zhejiang, Wenzhou, China Patentee after: C&U Co.,Ltd. Address before: 16 No. 325000 Yong Jiang Road, hi tech Industrial Development Zone, Zhejiang, Wenzhou, China Patentee before: C & U Group Ltd. |
|
| CP01 | Change in the name or title of a patent holder |