CN204828526U - Pretension type ball nut with cooling structure - Google Patents
Pretension type ball nut with cooling structure Download PDFInfo
- Publication number
- CN204828526U CN204828526U CN201520551935.9U CN201520551935U CN204828526U CN 204828526 U CN204828526 U CN 204828526U CN 201520551935 U CN201520551935 U CN 201520551935U CN 204828526 U CN204828526 U CN 204828526U
- Authority
- CN
- China
- Prior art keywords
- ball nut
- cooling
- nut body
- cover plate
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 239000000110 cooling liquid Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000741 silica gel Substances 0.000 claims abstract description 9
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model discloses a pretension type ball nut with cooling structure, including ball nut body, be equipped with the ball and return to the ware on ball nut body, be equipped with a set of cooling channel in ball nut body, this cooling channel is the go with each other all the time formula, and a coolant liquid import and a cooling liquid exit on the nut flange all communicate with each other with two cooling channel, be equipped with refrigeration cycle apron and the sealed apron of cooling at ball nut body both ends, be equipped with the sealed silica gel layer that forms with ball nut body surface and the sealed cover plate surface of cooling at the sealed apron both ends face of cooling. The utility model discloses temperature in the time of effectually reducing the ball nut operation, the cooling channel of extension coolant liquid in nut body, it is sealed reliable, improved the nut rigidity.
Description
Technical field
The utility model relates to a kind of ball nut, specifically a kind of pre-tensioned type ball nut with cooling structure.
Technical background
Precise ball screw pair is mainly used in Precision Position Location System, as numerical control machine tool, robot system etc., now widely used ball screw pair is when high-speed overload, lead screw pair heating value is larger, tradition lead screw pair is without effective cooling method, air cooling or forced air-cooling can only be adopted, poor to the release efficiency of lead screw pair surface heat, the change of leading screw temperature can cause thermal distortion, cause precision unstable, developed hollow cooling lead screw pair afterwards, heat can be taken away from leading screw inside by leading screw axle center cooling tube by cooling liquid, preferably resolve the situation of leading screw surface heat, but when frequently running in nut short stroke, the main portions of lead screw pair heat production is not only leading screw surface, nut rolling way surface also produces a large amount of heat, the dimensionally stable of nut is impacted.
Summary of the invention
In order to overcome prior art Problems existing, the purpose of this utility model is to provide a kind of pre-tensioned type ball nut with cooling structure, this pre-tensioned type ball nut can effectively reduce temperature when ball nut runs, extend the cooling channel of cooling liquid in nut body, sealing is reliable, improves nut rigidity.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pre-tensioned type ball nut with cooling structure, comprise ball nut body, ball nut body is provided with ball and reverser, it is characterized in that: in ball nut body, be provided with one group of cooling channel, this cooling channel is the formula of going with each other all the time, and a cooling liquid inlet on nut flange and a cooling liquid outlet all communicate with two cooling channels; Be provided with cool cycles cover plate and coolant seal cover plate at ball nut body two ends, be provided with the layer of silica gel of the sealing formed with ball nut surface and coolant seal lid surface in coolant seal cover plate both ends of the surface.
In the utility model, be provided with one group of 8 cooling channel in ball nut body, 8 rational passage arrangements in cooling channel, are evenly distributed in ball nut body peripheral wall and position near spiral nut rolling way.Coolant seal cover plate is made up of steel plate, forms uniform layer of silica gel on steel plate two surface, makes layer of silica gel contact with circulation lid surface with nut surface, formed and seal comparatively reliably during use.
Compared with prior art, the utility model can effectively reduce temperature when ball nut runs, and extends the cooling channel of cooling liquid in nut body, and sealing is reliable, improves nut rigidity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circulation schematic diagram in nut interior cooling channel in the utility model.
Fig. 3 is coolant seal cover plate structure schematic diagram in the utility model.
Embodiment
Have a pre-tensioned type ball nut for cooling structure, see Fig. 1, this pre-tensioned type ball nut comprises ball nut body 3, and ball nut body is provided with ball 4 and reverser 5.One group of 8 cooling channel 31 is provided with in ball nut body, this cooling channel is the formula of going with each other all the time, a cooling liquid inlet 32 on nut flange and a cooling liquid outlet 33 all communicate with two cooling channels. and be provided with cool cycles cover plate 1 and coolant seal cover plate 2 at ball nut body two ends, be provided with the layer of silica gel 21 of the sealing formed with ball nut surface and coolant seal lid surface in coolant seal cover plate both ends of the surface.
For solving the problem of nut excessive heating in plain ball lead screw pair or hollow lead screw pair, the rational passage arrangement in 8 cooling channels be provided with in ball nut body, be evenly distributed in ball nut body peripheral wall and position can effectively reduce nut rolling way generation high temperature near spiral nut rolling way.Cooling liquid enters in nut body in nut flange radial direction, and finally flow out nut from flange radial position, its coolant connection size is similar to oilhole with position, easy to use, does not affect nut actual use stroke.Liquid circulation mode is outward " singly entering singly to go out " at nut body, i.e. only cooling liquid inlet cooling liquid outlet on nut flange, adopt in nut body and go with each other all the time, namely nut interior cooling channel is with Twin channel at nut body Inner eycle, and Fig. 2 is circulation schematic diagram in nut interior cooling channel in the utility model.
For preventing cooling liquid from causing leakage when nut body Inner eycle, must seal circulation cover plate.Prior art generally adopts seal ring to add the mode of seal groove, easily occur that sealing is unreliable in actual use, the situation that cooling liquid is leaked, vulcanizing treatment is carried out in 1.5mm steel plate both sides by the design, that surface of steel plate forms uniform layer of silica gel, make layer of silica gel contact with circulation lid surface with nut surface during use, formed and seal comparatively reliably.Fig. 3 is coolant seal cover plate structure schematic diagram in the utility model.
Claims (3)
1. one kind has the pre-tensioned type ball nut of cooling structure, comprise ball nut body (3), ball nut body (3) is provided with ball and reverser, it is characterized in that: in ball nut body (3), be provided with one group of cooling channel (31), this cooling channel (31) is the formula of going with each other all the time, and a cooling liquid inlet (32) on nut flange and a cooling liquid outlet (33) all communicate with two cooling channels (31); Be provided with cool cycles cover plate (1) and coolant seal cover plate (2) at ball nut body (3) two ends, be provided with the layer of silica gel (21) of the sealing formed with ball nut body (3) surface and coolant seal cover plate (2) surface in coolant seal cover plate (2) both ends of the surface.
2. the pre-tensioned type ball nut with cooling structure according to claim 1, it is characterized in that: in ball nut body (3), be provided with one group 8 cooling channels (31), 8 cooling channels (31) are evenly distributed in ball nut body (3) peripheral wall and position near spiral nut rolling way.
3. the pre-tensioned type ball nut with cooling structure according to claim 1, is characterized in that: coolant seal cover plate (2) is made up of steel plate, forms uniform layer of silica gel on steel plate two surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551935.9U CN204828526U (en) | 2015-07-28 | 2015-07-28 | Pretension type ball nut with cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520551935.9U CN204828526U (en) | 2015-07-28 | 2015-07-28 | Pretension type ball nut with cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204828526U true CN204828526U (en) | 2015-12-02 |
Family
ID=54686131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520551935.9U Active CN204828526U (en) | 2015-07-28 | 2015-07-28 | Pretension type ball nut with cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204828526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065597A (en) * | 2015-07-28 | 2015-11-18 | 南京工艺装备制造有限公司 | Pre-tightening type ball nut with cooling structure |
-
2015
- 2015-07-28 CN CN201520551935.9U patent/CN204828526U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065597A (en) * | 2015-07-28 | 2015-11-18 | 南京工艺装备制造有限公司 | Pre-tightening type ball nut with cooling structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 210000, No. 79 Feiying Road, Binjiang Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Technology and Equipment Manufacturing Co.,Ltd. Country or region after: China Address before: 210000, No. 79 Feiying Road, Binjiang Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: NANJING TECHNICAL EQUIPMENT MANUFACTURE Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |