CN208619619U - Seperated nut combination - Google Patents
Seperated nut combination Download PDFInfo
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- CN208619619U CN208619619U CN201820907802.4U CN201820907802U CN208619619U CN 208619619 U CN208619619 U CN 208619619U CN 201820907802 U CN201820907802 U CN 201820907802U CN 208619619 U CN208619619 U CN 208619619U
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- nut
- seperated
- combination according
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- utility
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Abstract
The utility model relates to a kind of seperated nuts to combine, nut combination includes two pieces of completely split type first nuts and the second nut, first nut and the second nut is the nut of screw pitch having the same and lead, and is cooperated or moved on same root thread spindle.Compared with prior art, the utility model has the advantages that gap effect is good, and the time is long, convenient disassembly that disappear.
Description
Technical field
The utility model relates to electric machine structure fields, combine more particularly, to a kind of seperated nut.
Background technique
Miniature screw rod and nut has very extensive utilization in motion control field.And nut is using a period of time
Can all occur some abrasion conditions later, the gap of appearance can cause the error of position when nut changes the direction of motion how
The kinematic error is eliminated, the aspect that screw thread pair precision needs to consider first is exactly improved.
Existing technology is the nut that two identical leads are axially connected using spring on the market, to apply axial thrust
Or pulling force, enable nut that load to be overcome to eliminate gap, the shortcomings that this scheme is, when loading bigger, it will to axial direction
The spring of placement applies reaction force, so that reverse movement occurs for the clearance system that disappears, while error will will increase.
Traditional nut disappears gap nut when seated, need from thread spindle end screw in, when disassembled, need from
Thread spindle end screws out.After above the machine and mechanism that entire screw thread pair has been mounted on oneself by user, thread spindle end
The original parts such as bearing have often been used to be connect with other mechanisms, at this time if nut long-play is damaged,
Client, which is often difficult to dismantle nut, to get off, or needs to expend under the entire mechanism that a large amount of working hour connects screw thread pair all dismantles
Come, then carries out maintenance maintenance or replacement.
By retrieval, China Patent Publication No. be a kind of novel torsional spring of CN204459040U disappear gap nut disclose it is a kind of new
Type torsional spring disappears gap nut, including screw rod, and the end of the screw rod and the threaded one end of flange nut connect, the flange nut
Inner flower-key and the outer flower-key of freely regulated seperated nut are worked in coordination connection, and the slotted mode that disappears of this structure compares ball screw
More suitable to use, precision is more preferable.It is all the POM with self-lubricating that the material of nut is most of simultaneously, cooperates 303 stainless steel T-type silks
Bar, weight is lighter, and noise is smaller, is more suitable for Medical Devices, food processing, wait some pairs of noises and hygienic requirements it is excessively high from
In dynamicization equipment.But the utility model still uses torsional spring to connect two nuts and carries out the gap that disappears, and is not suitable for loading big
Occasion, and can be relatively difficult when disassembly.
Utility model content
The purpose of this utility model is exactly to provide a kind of seperated nut to overcome the problems of the above-mentioned prior art
Combination.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fission nut combination, nut combination include two pieces of completely split type first nuts and the second nut, institute
The first nut and the second nut stated are the nut of screw pitch having the same and lead, and are cooperated on same root thread spindle
Or movement.
Preferably, nut combination further includes connector, and first nut and the second nut pass through connector
It is connected in a manner of semifloating.
Preferably, the connector is the elastic element that can produce elastic force.
Preferably, the connector is the C-shaped ring with opening.
Preferably, the connector is without the circlip of opening, multi-turn volute spring, O-ring or rubber ring.
Preferably, slot is provided on the circumference of first nut；The shape and first at the second nut both ends
The slot of nut matches, and second nut is caught in the first nut along the radial direction of fluting.
Preferably, first nut and the second nut can make opposite sliding along the radial direction of fluting.
Preferably, the guide groove or guide rail being mutually matched are equipped at the mounting flange of first nut and the second nut,
Opposite sliding is carried out by guide groove or guide rail for the first nut and the second nut.
Preferably, the guide groove or guide rail are circular, square or triangle.
Preferably, the first bigger than the second nut perhaps described nut of first nut it is smaller than the second nut or
Both first nut and the second nut are equally big.
Preferably, first nut is an entirety or multiple fissions.
Preferably, second nut is an entirety or multiple fissions.
Compared with prior art, the utility model has the advantage that
1, disappear gap effect duration it is long.The principles of the present invention are: under the action of connector, being kept completely separate
Two nut portions, can thread spindle radial direction carry out it is engaged, with abrasion constantly aggravation, two parts are in interface side
To occlusion can be deeper and deeper so that the effect in the gap that disappears will not decline under prolonged operation.
2, this split type nut combination of the utility model is able to bear the load of 50N or more without obviously generating
Gap, it is smaller on system accuracy influence, there is very big advantage compared to traditional structure.
3, the split type nut combination of the utility model is extremely advantageous to the installation and removal of client, and the utility model exists
To the very high application field of required precision, client can be directly from the radial separation nut of screw thread pair, thus foolproof right
Nut carry out demolition and replacement, and has saved great amount of cost.
Detailed description of the invention
Fig. 1 is the example structure schematic diagram that the utility model uses connector；
Fig. 2 is first nut of the utility model and the schematic diagram of the second nut relative movement；
Fig. 3 is the schematic side view after the Separated nut combination cooperation of the utility model；
Fig. 4 is that first nut of the utility model cuts the schematic diagram of slot, and wherein a is to cut slot part；
Fig. 5 is the structural schematic diagram of first nut of the utility model；
Fig. 6 is the structural schematic diagram of second nut of the utility model；
Fig. 7 is the right side view of second nut of the utility model, and wherein b is internal whorl；
Fig. 8 (a) uses the schematic elevation view of circular guide connection for first nut of the utility model and the second nut,
Middle c is circular guide；
Fig. 8 (b) is first nut of the utility model and the stereoscopic schematic diagram that the second nut uses circular guide to connect；
Fig. 9 (a) uses the schematic elevation view of triangular guide connection for first nut of the utility model and the second nut,
Wherein d is triangular guide；
Fig. 9 (b) is first nut of the utility model and the stereoscopic schematic diagram that the second nut uses triangular guide to connect；
Figure 10 is that the nut of the utility model moves integrally the schematic diagram in compensation gap, and wherein F is radial pressure, E1 the
One nut moves integrally compensation gap, and E2 is that the second nut moves integrally compensation gap；
Figure 11 is the gap bring systematic error comparison of existing design and the utility model under long-play
Figure；
Figure 12 is existing design and the gap bring systematic error comparison diagram of the utility model under heavy loads；
Figure 13 is the split type nut combination disassembly schematic diagram of the utility model, and wherein G is traditional gap nut that disappears
Disassembly direction, H are the disassembly direction, radially spaced-apart of the utility model.
Wherein 1 is the first nut, and 2 be the second nut, and 3 be thread spindle, and 4 be connector.
Specific embodiment
The technical scheme in the embodiment of the utility model will be carried out clear, be fully described by, it is clear that described below
Embodiment is a part of the embodiment of the utility model, rather than whole embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work all should belong to this
The range of utility model protection.
As shown in figures 1 and 3, a kind of seperated nut combination, nut combination include two pieces of first completely split type spiral shells
Mother 1 and the second nut 2, first nut 1 and the second nut 2 screw pitch and lead having the same, can be in same root screw thread
Cooperated or moved on axis 3.
The nut combination, further includes connector 4, the connector 4 floats the first nut 1 and the second nut 2 half
It links together dynamicly.
The connector 4 is the elastic element that can produce elastic force.Preferably the connector 4 is with opening
C-shaped ring.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, first nut 1 is not a complete circle in terms of front, described
Slot is provided on circumference；Second nut 2 is not a complete circle in terms of front；The shape of second nut, 2 two sides
Shape is matched with the slot of the first nut 1, and the second nut 2 is allow to be caught in the first nut 1 along the radial direction of slot.
As shown in Fig. 2, first nut 1 and the second nut 2 can make opposite sliding along the radial direction of slot.
The guide groove or guide rail being mutually matched are equipped at the mounting flange of first nut 1 and the second nut 2.
As shown in figure 8, perhaps guide rail is circular guide as shown in figure 9, the guide groove or guide rail is to the guide groove
Triangular guide.
As shown in Figure 5 and Figure 6, the first bigger than the second nut or described nut of first nut is than the second spiral shell
Both female small or described the first nut and the second nut are equally big.First nut is an entirety or multiple
It is seperated；When the first nut is multiple seperated, multiple seperated effects realized with an entirety are identical.Second nut is
One entirety or multiple fissions；When the second nut is multiple seperated, multiple seperated effect phases realized with an entirety
Together.
Compared with traditional structure, the utility model is had the advantage that
(1), disappear gap effect duration it is long.After traditional gap nut that disappears is worn using a period of time,
Since the direction in the gap that disappears is mainly that axially, when loading larger, the effect for eliminating gap can decline to a great extent.Such as Figure 10
Shown, the principle of this patent is: under the action of connector, two nut portions being kept completely separate can be in the radial direction of thread spindle
Carry out it is engaged, with abrasion constantly aggravation, the occlusion of two parts in the Y direction can be deeper and deeper, so that prolonged
Under operation, the effect in the gap that disappears will not decline.As shown in figure 11, existing design and the utility model are under long-play
Gap bring systematic error comparison.
(2), this split type nut combination is able to bear the load of 50N or more without obviously generating gap, right
System accuracy influence is smaller, has very big advantage compared to traditional structure, as shown in figure 12.
(3), split type nut combines extremely advantageous to the installation and removal of client, traditional nut or the gap spiral shell that disappears
It is female to need to screw in from thread spindle end when seated, when disassembled, need to screw out from thread spindle end.When user will be whole
After a screw thread pair is mounted on above the machine and mechanism of oneself, thread spindle end has often used the original parts such as bearing and other machines
Structure is connected, and at this time if nut long-play is damaged, client, which is often difficult to dismantle nut, to get off, Huo Zhexu
It expends the entire mechanism that a large amount of working hour connects screw thread pair all to disassemble, then carries out maintenance maintenance or replacement.And this
The design of utility model, to the very high application field of required precision, client can directly from the radial separation nut of screw thread pair,
It carry out demolition and replacement to foolproof to nut, has saved great amount of cost.As shown in figure 13.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can be readily occurred in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this is practical
Novel protection scope should be subject to the protection scope in claims.
Claims (12)
1. a kind of fission nut combination, which is characterized in that nut combination includes two pieces of split type first nuts and the completely
Two nuts, first nut and the second nut are the nut of screw pitch having the same and lead, and in same root thread spindle
On cooperated or moved.
2. a kind of seperated nut combination according to claim 1, which is characterized in that the nut combination further includes connection
Part, first nut and the second nut are connected in a manner of semifloating by connector.
3. a kind of seperated nut combination according to claim 2, which is characterized in that the connector is that can produce elastic force
Elastic element.
4. a kind of seperated nut combination according to claim 2 or 3, which is characterized in that the connector is with opening
The C-shaped ring of mouth.
5. a kind of seperated nut combination according to claim 2 or 3, which is characterized in that the connector is without opening
Circlip, multi-turn volute spring, O-ring or the rubber ring of mouth.
6. a kind of seperated nut combination according to claim 1, which is characterized in that opened on the circumference of first nut
There is slot；The shape at the second nut both ends is matched with the slot of the first nut, radial direction of second nut along fluting
Direction is caught in the first nut.
7. a kind of seperated nut combination according to claim 6, which is characterized in that first nut and the second nut
It can make opposite sliding along the radial direction of fluting.
8. a kind of seperated nut combination according to claim 1, which is characterized in that first nut and the second nut
Mounting flange at be equipped with the guide groove or guide rail that are mutually matched, carried out for the first nut and the second nut by guide groove or guide rail
Opposite sliding.
9. a kind of seperated nut combination according to claim 8, which is characterized in that the guide groove or guide rail is circle
Shape, rectangular or triangle.
10. a kind of seperated nut combination according to claim 1, which is characterized in that first nut is than the second spiral shell
Both female the first big perhaps described nut smaller than the second nut or described the first nut and the second nut are equally big.
11. a kind of seperated nut combination according to claim 1, which is characterized in that first nut is one whole
Body or multiple fissions.
12. a kind of seperated nut combination according to claim 1, which is characterized in that second nut is one whole
Body or multiple fissions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907802.4U CN208619619U (en) | 2018-06-12 | 2018-06-12 | Seperated nut combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907802.4U CN208619619U (en) | 2018-06-12 | 2018-06-12 | Seperated nut combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619619U true CN208619619U (en) | 2019-03-19 |
Family
ID=65703019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820907802.4U Active CN208619619U (en) | 2018-06-12 | 2018-06-12 | Seperated nut combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594378A (en) * | 2018-06-12 | 2019-12-20 | 上海鸣志电器股份有限公司 | Split nut combination |
-
2018
- 2018-06-12 CN CN201820907802.4U patent/CN208619619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594378A (en) * | 2018-06-12 | 2019-12-20 | 上海鸣志电器股份有限公司 | Split nut combination |
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