CN201763910U - Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement - Google Patents
Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement Download PDFInfo
- Publication number
- CN201763910U CN201763910U CN2010202619507U CN201020261950U CN201763910U CN 201763910 U CN201763910 U CN 201763910U CN 2010202619507 U CN2010202619507 U CN 2010202619507U CN 201020261950 U CN201020261950 U CN 201020261950U CN 201763910 U CN201763910 U CN 201763910U
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- Prior art keywords
- nut
- clearance
- screw
- screw nut
- conical surface
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Abstract
The utility model discloses a clearance-adjusting screw nut with adjustable resistance moment and ultra-stable movement. The clearance-adjusting screw nut includes a screw nut body screwed on a screw rod and a clearance-adjusting screw sleeve sleeved outside the screw nut body; a petal end with more than three opening slots is arranged at one end of the screw nut body and is provided with a conical surface; the clearance-adjusting screw sleeve consists of two screw sleeve units which are screwed together; one of the screw sleeve units, which is close to the petal end of the screw nut body, is provided with a wedge-shaped conical surface propped against the conical surface of the petal end of the screw nut body; an anti-skidding gasket is arranged between the two screw sleeve units; and the other end of the screw nut body is matched and positioned with a positioning pin of the other screw sleeve unit. According to the utility model, the screw nut structure in the prior art, which is incapable of adjusting the clearance, is abandoned. When clearance appears due to the abrasion of the screw rod pair, the distance between the two screw sleeve units can be adjusted with hands, and the wedge-shaped conical surface of the screw sleeve unit can be propped against the conical surface of the screw nut body, therefore, the clearance of the screw rod pair is eliminated. The clearance-adjusting screw nut has the advantages of small noise and stable movement.
Description
Technical field
The utility model relates to the architecture advances of screw pair, especially refers to the architecture advances of nut.
Background technique
Screw pair structure of the prior art as shown in Figure 3, the screw mandrel 1 ' and the nut 2 ' that are spirally connected very easily movement clearance occurs because of wearing and tearing in movement process, movement clearance can strengthen the linear motion positioning error and duplicate the location, has caused problems such as noise is big, kinematic accuracy attenuating.The method that solves this clearance issues is also arranged in the prior art, but still have the problem that the Component replacing bothers, cost of production is high.
The model utility content
At the defective that exists in the prior art, the utility model provides a kind of super easy motion of adjustable resistance square simple in structure to transfer the crack nut.This accent crack nut is applicable to manual tune, and its noise is little, motion is steady.
For achieving the above object, technical solutions of the utility model are:
The super easy motion of adjustable resistance square is transferred the crack nut, and it mainly is bolted in the nut body on the screw mandrel by one and is sheathed on the outer accent crack swivel nut of this nut body forms; Described nut body one end is the petal end that is provided with three above opening slots, this petal end has a conical surface, described accent crack swivel nut is spirally connected by two swivel nut monomers and forms, and the swivel nut monomer of contiguous nut main body petal end is provided with the wedge shape conical surface that is resisted against described nut main body petal end conical surface.
Be provided with packing ring between described two swivel nut monomers.
The other end of described nut body is the fixed end that convexes with locating stud, and the swivel nut monomer of contiguous this fixed end is provided with the locating slot that cooperates the location with described locating stud.
The usefulness of technique scheme is:
The utility model has been abandoned the nut structure that can't regulate the gap in the prior art.It is the sheathed one accent crack swivel nut that is spirally connected and is formed by two swivel nut monomers outside nut main body, and for preventing the swivel nut monomer axial float of contiguous nut main body petal end, between two swivel nut monomers, be provided with elastic washer, for preventing the radially rotation of another swivel nut monomer, be provided with the locating stud of this swivel nut monomer of location in the other end of nut main body.When screw pair the gap occurs because of wearing and tearing, but the gap that the separation of manual tune two swivel nut monomers is eliminated screw pair.Not only noise is little for it, and motion steadily.
Description of drawings
Fig. 1 is the three-dimensional decomposition texture schematic representation of the utility model;
Fig. 2 is the utility model assembled state sectional structure schematic representation;
Fig. 3 is the prior art structural representation.
Embodiment
The utility model now is described in conjunction with the accompanying drawings and embodiments.
The super easy motion of adjustable resistance square is as shown in Figure 1, 2 transferred the crack nut, and it mainly is bolted in the nut body 2 on the screw mandrel 1 by one and is sheathed on these nut body 2 outer accent crack swivel nuts 3 forms.Described nut body 2 one ends are the petal end 21 that is provided with two above opening slots 211, and this petal end 21 has a conical surface 212.Described accent crack swivel nut 3 is spirally connected by left and right two swivel nut monomers 31,32 and forms, and is provided with O shape elastic washer 4 in 31,32 of this two swivel nuts monomers.The swivel nut monomer 32 of contiguous nut main body 2 petal ends 21 is provided with the wedge shape conical surface 321 that is resisted against described nut main body 2 petal ends 21 conical surfaces 212.The other end of described nut body is the fixed end that convexes with locating stud 213, and the swivel nut monomer 31 of contiguous this fixed end is provided with the locating slot that cooperates the location with described locating stud 213.
When screw pair the gap occurs because of wearing and tearing, but the distance of manual tune two swivel nut monomers 31,32 makes the wedge shape conical surface 321 of swivel nut monomer 32 push against the gap that conical surfaces 212 are eliminated screw pair.
Claims (3)
1. the super easy motion of adjustable resistance square is transferred the crack nut, is characterised in that: it mainly is bolted in the nut body on the screw mandrel by one and is sheathed on the outer accent crack swivel nut of this nut body forms; Described nut body one end is the petal end that is provided with three above opening slots, this petal end has a conical surface, described accent crack swivel nut is spirally connected by two swivel nut monomers and forms, and the swivel nut monomer of contiguous nut main body petal end is provided with the wedge shape conical surface that is resisted against described nut main body petal end conical surface.
2. the super easy motion of adjustable resistance square as claimed in claim 1 is transferred the crack nut, is characterised in that: be provided with elastic washer between described two swivel nut monomers.
3. the super easy motion of adjustable resistance square as claimed in claim 1 or 2 is transferred the crack nut, be characterised in that: the other end of described nut body is the fixed end that convexes with locating stud, and the swivel nut monomer of contiguous this fixed end is provided with the locating slot that cooperates the location with described locating stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202619507U CN201763910U (en) | 2010-07-16 | 2010-07-16 | Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202619507U CN201763910U (en) | 2010-07-16 | 2010-07-16 | Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763910U true CN201763910U (en) | 2011-03-16 |
Family
ID=43716515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202619507U Expired - Fee Related CN201763910U (en) | 2010-07-16 | 2010-07-16 | Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678866A (en) * | 2012-05-25 | 2012-09-19 | 西北工业大学 | Planetary roller screw assembly |
| CN112503148A (en) * | 2020-11-19 | 2021-03-16 | 中国科学院上海光学精密机械研究所 | Preload-adjustable precision guide screw rod displacement mechanism |
-
2010
- 2010-07-16 CN CN2010202619507U patent/CN201763910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678866A (en) * | 2012-05-25 | 2012-09-19 | 西北工业大学 | Planetary roller screw assembly |
| CN112503148A (en) * | 2020-11-19 | 2021-03-16 | 中国科学院上海光学精密机械研究所 | Preload-adjustable precision guide screw rod displacement mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fujian Changqing Precision Machinery Co., Ltd. Assignor: Nanjing Changqing Precision Screw Manufacture Co., Ltd. Contract record no.: 2012350000001 Denomination of utility model: Clearance-adjusting nut with adjustable resistance moment and ultra-stable movement Granted publication date: 20110316 License type: Exclusive License Record date: 20120106 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Fujian Changqing Precision Machinery Co., Ltd. Assignor: Nanjing Changqing Precision Screw Manufacture Co., Ltd. Contract record no.: 2012350000001 Date of cancellation: 20121228 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130716 |