CN209725135U - A kind of modular nut backlash eliminating equipment - Google Patents
A kind of modular nut backlash eliminating equipment Download PDFInfo
- Publication number
- CN209725135U CN209725135U CN201920481617.8U CN201920481617U CN209725135U CN 209725135 U CN209725135 U CN 209725135U CN 201920481617 U CN201920481617 U CN 201920481617U CN 209725135 U CN209725135 U CN 209725135U
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- China
- Prior art keywords
- nut
- shell
- hole
- wedge block
- screw
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- Expired - Fee Related
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- 239000007937 lozenge Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
A kind of modular nut backlash eliminating equipment, including 1, one, nut shell, 6, two, spring, the 7, end caps 8 of pin block of inner nut 5, two of adjusting screw 4, one of wedge block 3, one of screw rod 2, one；It drives wedge block 3 to move radially by tightening adjusting screw 4, and constantly squeezes spring 6, the screw thread on inner nut 5 and nut shell 1 is made to contradict the screw thread on screw rod 2 respectively, the effect of the axial gap that disappears may be implemented.This backlash eliminating equipment greatly improves the service life of screw rod and nut thread cooperation, and structure is simple, easy to install, easy to operate, has greatly saved economic cost.
Description
Technical field
The utility model belongs to mechanical transmission fields, is related to a kind of modular nut backlash eliminating equipment.
Background technique
The structure of existing nut mainly has monoblock type and and combined type.Monoblock type nut is a complete structure, directly
Precision reduces when being used cooperatively with screw rod, but will lead to since its screw thread is easy to wear screw thread forward and reverse transmission, therefore is usually used in essence
It spends in transmission mechanism of less demanding；One nut is divided into several parts by modular nut, repeatedly internal can be adjusted,
To achieve the purpose that eliminate the abrasion of screw thread, the precision and durability of bolt and nut transmission are significantly increased, therefore is commonly used two-way
In worm drive structure.Therefore, in order to ensure that screw rod rotates backward gapless, need to be often driven using modular nut, but existing group
It closes nut interior complexity, be not easy operation and installation.
Therefore, it is proposed to which a kind of modular nut backlash eliminating equipment, is divided into several parts to form on nut, by adjusting spiral shell
Nail can eliminate the screw rod idle stroke that axially forward and reverse transmission occurs, realize that screw rod is precisely driven.
Summary of the invention
The utility model takes the following technical solution:
A kind of modular nut backlash eliminating equipment, including 1, one, a nut shell screw rod 2, one wedge block 3, one are adjusted
4, one, whole screw, 6, two, the spring end cap 8 of pin block 7, one of inner nut 5, two；Outside nut shell 1；Outside nut shell 1
Shape is cylindrical body, and interior shape is the structure for having a rectangular blind hole to add screwed hole of centre；Inner nut 5 and wedge block 3 are respectively mounted
In the rectangular blind hole of nut shell 1；By contact of incline plane between inner nut 5 and wedge block 3, the two is coaxial with nut shell 1
Rotation；Adjusting screw 4 is connect by the shell of nut shell 1 with wedge block 3；Screw rod 2 passes through on nut shell 1 and inner nut 5
Threaded hole；End cap 8 is mounted on one end of rectangular blind hole on nut shell 1 by several screws, and inner nut 5 and wedge block 3 is close
It is enclosed in the rectangular blind hole of nut shell 1.
Wedge block 3 is made of lozenges 3-1, unthreaded hole 3-2, adjustment threaded hole 3-3；Screw rod 2 passes through unthreaded hole 3-2, unthreaded hole 3-2
Diameter be greater than screw rod diameter；Adjusting screw 4 is threadedly coupled with adjustment threaded hole 3-3, and adjusting screw 4 drives on wedge block 3
Inclined-plane 5-3 of the lozenges 3-1 on inner nut 5 move, constantly squeeze the screw thread on inner nut 5 and contradict screw thread on screw rod 2.
Inner nut 5 is made of an internal thread hole 5-1, two location hole 5-2, an inclined-plane 5-3 and square body；Inner nut
Internal thread hole 5-1 on 5 is threadedly coupled with screw rod 2；Spring 6 is separately installed on two pin blocks 7, two pin blocks 7 are distinguished
It is mounted in two location hole 5-2.
Nut shell 1 is by a rectangular blind hole 1-1, a screwed hole of centre 1-2, four deep gouge hole 1-3, an adjusting hole
1-4 composition；Inner nut 5 and wedge block 3 are mounted in the rectangular blind hole 1-1 of nut shell 1, not can be rotated；End cap 8 passes through several
Fixing screws are mounted on nut shell 1 on corresponding four deep gouge holes 1-3.
A kind of gap method that disappears of modular nut backlash eliminating equipment:
Extruding inner nut 5 on the right side of wedge block 3 is driven by tightening adjusting screw 4, right side screw thread on inner nut 5 is made to contradict spiral shell
2 left side screw thread of bar；Nut shell 1 is squeezed on the left of wedge block 3, and 1 left side screw thread of nut shell is made to contradict 2 right side screw thread of screw rod, it can
To eliminate the idle stroke that the forward and reverse transmission of screw rod 2 occurs.
A kind of beneficial effect of modular nut backlash eliminating equipment is:
One complete nut is divided into three parts to collectively constitute, uses wedge block for intermediate transmission component, uses simultaneously
Spring is that wedge block increases activity adjustment space, and fixed provide of another part nut squeezes power, can by adjusting screw
To realize that eliminating screw rod and nut abrasion generates axial gap；Its structure is simple, easy to install, easy to operate, can be adjusted multiple times spiral shell
Nail realizes the gap that disappears, and has greatly saved economic cost.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of modular nut backlash eliminating equipment in the utility model.
Fig. 2 is the structure chart of wedge block in the utility model.
Fig. 3 is the structure chart of inner nut in the utility model.
Fig. 4 is the structure chart of nut shell in the utility model.
Specific embodiment
The implementation process of the utility model is described in detail with reference to the accompanying drawing.
Such as Fig. 1, a kind of modular nut backlash eliminating equipment, including 1, one, nut shell screw rod 2, one wedge block 3,
One 6, two, spring end cap 8 of pin block 7, one of inner nut 5, two of adjusting screw 4, one；By tightening 4 band of adjusting screw
Dynamic wedge block 3 moves radially, and constantly squeezes spring 6, contradicts the screw thread on inner nut 5 and nut shell 1 respectively on screw rod 2
Screw thread, the effect of the axial gap that disappears may be implemented.
Such as Fig. 2 and Fig. 3, wedge block 3 is made of lozenges 3-1, unthreaded hole 3-2, adjustment threaded hole 3-3；Screw rod 2 passes through unthreaded hole
3-2, unthreaded hole 3-2 diameter are greater than screw diameter；The connection adjustment threaded hole 3-3 of adjusting screw 4, drives wedge block 3 to squeeze inner nut
5, so that screw thread on nut shell 1 and inner nut 5 is contradicted 2 two sides screw thread of screw rod respectively；Inner nut 5 is by internal thread hole 5-1, two
A location hole 5-2, an inclined-plane 5-3 and square body composition；Internal thread hole 5-1 on inner nut 5 is threadedly coupled with screw rod 2；Two
Spring 6 is separately installed on a pin block 7, two pin blocks 7 are separately mounted in two location hole 5-2.
Such as Fig. 4, nut shell 1 is by a rectangular blind hole 1-1, a screwed hole of centre 1-2, four deep gouge hole 1-3, one
Adjusting hole 1-4 composition；Wedge block 3 is mounted in the rectangular blind hole 1-1 of nut shell 1, is threadedly coupled with adjusting screw 4；End cap 8
It is mounted on nut shell 1 on corresponding four deep gouge holes 1-3 by several fixing screws, sealing nut shell 1 is used for, for bullet
Spring 6 provides extruding force.
The course of work of the utility model:
By tightening adjusting screw 4, make the inclined-plane 5-3 mutual extrusion on the lozenges 3-1 and inner nut 5 on wedge block 5,
Constantly push the screw thread on inner nut 5 to contradict the screw thread on screw rod 2, make the screw thread two sides of screw rod 2 respectively with nut shell 1 and interior
The screw thread of nut 2 mutually contradicts, final to realize the axial gap eliminated and occurred when 2 positive and negative rotation of screw rod.
Working principle of the utility model is:
A kind of modular nut backlash eliminating equipment uses wedge block 3 for the core component of extruding moving process, by adjusting screw
4 drive wedge block 3 constantly to squeeze spring 6, so that inner nut 5 is constantly moved thread-rolling screw along axial direction, between eliminating screw thread axial direction
Gap；By adjusting adjusting screw 4 repeatedly, the thread abrasion that screw rod and nut transmission process occur can be made up, is greatly improved
The service life of screw rod and nut thread cooperation.
Claims (4)
1. a kind of modular nut backlash eliminating equipment, feature includes a nut shell (1), a screw rod (2), a wedge block
(3), an adjusting screw (4), an inner nut (5), two springs (6), two pin blocks (7), an end cap (8)；Nut
It is cylindrical body outside shell (1), inside is that square groove and threaded hole form；Inner nut (5) and wedge block (3) are installed in nut
The square groove of shell (1), the contact of incline plane between inner nut (5) and wedge block (3), both can not axially rotate；Adjust spiral shell
It follows closely (4) and wedge block (3) is connected by the deep gouge hole on nut shell (1)；End cap (8) is mounted on nut by several fixing screws
Inner nut (5) and wedge block (3) are sealed in nut shell (1) by square hole one end on shell (1).
2. a kind of modular nut backlash eliminating equipment as described in claim 1, it is characterised in that: wedge block (3) is by lozenges (3-
1), unthreaded hole (3-2), adjustment threaded hole (3-3) composition；For screw rod (2) by unthreaded hole (3-2), it is straight that unthreaded hole (3-2) diameter is greater than screw rod
Diameter；Adjusting screw (4) is threadedly coupled with adjustment threaded hole (3-3), and adjusting screw (4) drives the lozenges (3- on wedge block (3)
1) inclined-plane (5-3) on inner nut (5) is mobile, and constantly the screw thread in extruding inner nut (5) contradicts the screw thread on screw rod (2).
3. a kind of modular nut backlash eliminating equipment as described in claim 1, it is characterised in that: inner nut (5) is by an interior spiral shell
Pit (5-1), two location holes (5-2), an inclined-plane (5-3) and square body composition；Internal thread hole (5- on inner nut (5)
1) it is threadedly coupled with screw rod (2)；It is separately installed with spring (6) on two pin blocks (7), two pin blocks (7) are separately mounted to
In two location holes (5-2).
4. a kind of modular nut backlash eliminating equipment as described in claim 1, it is characterised in that: nut shell (1) is by a side
Shape blind hole (1-1), a screwed hole of centre (1-2), four deep gouge holes (1-3), adjusting hole (1-4) composition；Inner nut (5)
It is mounted on the rectangular blind hole (1-1) of nut shell (1) with wedge block (3), not can be rotated；End cap (8) is mounted on spiral shell by screw
On female shell (1) on corresponding four deep gouge holes (1-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481617.8U CN209725135U (en) | 2019-04-11 | 2019-04-11 | A kind of modular nut backlash eliminating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481617.8U CN209725135U (en) | 2019-04-11 | 2019-04-11 | A kind of modular nut backlash eliminating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725135U true CN209725135U (en) | 2019-12-03 |
Family
ID=68691114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920481617.8U Expired - Fee Related CN209725135U (en) | 2019-04-11 | 2019-04-11 | A kind of modular nut backlash eliminating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838526A (en) * | 2019-04-11 | 2019-06-04 | 陕西理工大学 | A kind of micro- backlash eliminating equipment of bolt and nut pair |
-
2019
- 2019-04-11 CN CN201920481617.8U patent/CN209725135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838526A (en) * | 2019-04-11 | 2019-06-04 | 陕西理工大学 | A kind of micro- backlash eliminating equipment of bolt and nut pair |
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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: 20191203 |