CN214404567U - Miniature ball nut - Google Patents
Miniature ball nut Download PDFInfo
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- CN214404567U CN214404567U CN202022620364.3U CN202022620364U CN214404567U CN 214404567 U CN214404567 U CN 214404567U CN 202022620364 U CN202022620364 U CN 202022620364U CN 214404567 U CN214404567 U CN 214404567U
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- ball
- nut
- nut body
- backward flow
- rolling groove
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Abstract
The utility model relates to a ball technical field especially indicates a miniature ball nut, including nut body, integral type backward flow ware, ball, bar form breach, installation keyway, rolling groove, backward flow ware locating hole, ball return circuit pipeline, lug, lubrication hole, the utility model discloses simple structure, the convenient assembly is dismantled, through nut body hole processing fixed mounting keyway, the integral type backward flow ware can pass through the combination position of installation keyway radial direction adjustment integral type backward flow ware and rolling groove, this mode can avoid the installation deviation of integral type backward flow ware and rolling groove because of machining error leads to; the ball rolls the circulation through integral type backward flow ware, and ball backward flow ware and spiral helicine roll groove formula injection moulding as an organic whole, multiseriate ball flow back in the same angular position, and this mode has increased because of the stability when multiseriate ball flows back.
Description
Technical Field
The utility model belongs to the technical field of the ball screw technique and specifically relates to indicate a miniature ball nut.
Background
The ball screw pair is a transmission mechanism for converting rotary motion into linear motion or converting linear motion into rotary motion, and is widely used in an automobile electronic steering system as a transmission accessory with highest precision in the existing transmission machinery.
The ball screw pair comprises a screw and a ball nut, the two ends of the screw are generally respectively connected with a screw supporting seat and a supporting end, the outer pipe wall of the ball nut is penetrated and fixed on a nut seat connector matched with other mechanisms, and the inner pipe wall of the ball nut is sleeved and connected between the screw supporting seat and the supporting end. During installation, the screw supporting seats at two ends, the supporting ends and the ball nuts are connected together by the screws and the positioning sleeves for correction, and the axes of the screws are aligned and parallel to the electronic steering gear by the dial indicator, so that the aim of freely and quickly driving the screws is fulfilled.
The existing ball nut can only roll in the rolling groove through the self internal ball to ensure that the ball nut achieves the effect of stable operation, and in the process of production, because the inside spiral channel of the ball nut is used, the ball can slide in the spiral channel, the precision is high in the manufacturing process, so that the nut caused by the deviation of the spiral channel can be automatically adjusted, and the miniature ball nut convenient to adjust can be introduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
A miniature ball nut comprises a nut body, wherein a cylindrical shape is arranged in the nut body; the nut body inner wall is provided with spiral helicine roll groove, and the inside a plurality of balls that are provided with of roll inslot portion rolls the groove tip and is provided with bar form breach, both ends department is provided with the installation keyway around the nut body, the inside detachable integral type backward flow ware that is provided with of nut body, the identical corresponding bar form breach of integral type backward flow ware, nut body top layer is provided with the backward flow ware locating hole of fixed integral type backward flow ware.
Furthermore, the spiral rolling groove is connected with a ball loop pipeline which is of a U-shaped structure.
Further, one end of the ball loop pipeline is installed at the front end of the rolling groove, and the other end of the ball loop pipeline is installed at the rear end of the rolling groove.
Further, the rear end of the nut body is provided with a projection.
Further, the side end of the lug is provided with a lubricating hole, and the lubricating hole is communicated with the inside of the nut body.
Further, the nut body is made of hard steel.
The utility model has the advantages that: a miniature ball nut comprises a nut body, wherein a cylindrical shape is arranged in the nut body; the inner wall of the nut body is provided with a spiral rolling groove, a plurality of balls are arranged in the rolling groove, the end part of the rolling groove is provided with a strip-shaped notch, the front end and the back end of the nut body are provided with installation key grooves, the nut body is internally provided with a detachable integrated reflux device, the integrated reflux device is matched with the corresponding strip-shaped notch, the surface layer of the nut body is provided with a reflux device positioning hole for fixing the integrated reflux device, the balls can be placed in the spiral rolling groove in the nut body, the strip-shaped notch is arranged at the end part of the rolling groove, so that the integrated reflux device can be assembled and disassembled from the strip-shaped notch, the fixation of the integrated reflux device in the strip-shaped notch can be reinforced through the reflux device positioning hole on the surface layer of the nut body, the balls can be placed in the strip-shaped notch and taken down from the rolling groove, the replacement is convenient, and the installed ball nut is under the action of a screw rod, the ball placed in the inner rolling groove can roll along the motion direction of the screw rod, and circularly flows through the ball loop pipeline connected with the rolling groove, so that the friction force between the ball nut and the screw rod is reduced, the transmission efficiency is high, the utility model has the advantages of simple structure and convenient assembly and disassembly, the fixed installation key groove is processed through the inner hole of the nut body, the integrated reflux device can adjust the combination position of the integrated reflux device and the rolling groove in the radial direction of the installation key groove, and the installation deviation of the integrated reflux device and the rolling groove caused by the processing error can be avoided; the ball rolls the circulation through integral type backward flow ware, and ball backward flow ware and spiral helicine roll groove formula injection moulding as an organic whole, multiseriate ball flow back in the same angular position, and this mode has increased because of the stability when multiseriate ball flows back.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic view of a first structure of the present invention.
Fig. 2 is a second schematic structural diagram of the present invention.
Fig. 3 is a schematic view of a third structure of the present invention.
FIG. 4 is a schematic structural diagram of an integrated reflux device.
Fig. 5 is a plan view of the present invention.
The attached figures in the drawing are respectively marked as follows: the nut comprises a nut body-1, an integrated reflux device-2, a ball-3, a strip-shaped notch-4, an installation key groove-5, a rolling groove-6, a reflux device positioning hole-7, a ball loop pipeline-8, a bump-9 and a lubricating hole-10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 5, a micro ball nut includes a nut body 1, wherein a cylindrical shape is disposed inside the nut body 1; the inner wall of the nut body is provided with a spiral rolling groove 6, a plurality of balls 3 are arranged in the rolling groove 6, the end part of the rolling groove 6 is provided with a strip-shaped notch 4, the front end and the back end of the nut body 1 are provided with installation key grooves 5, a detachable integrated reflux device 2 is arranged in the nut body 1, the integrated reflux device 2 is matched with the corresponding strip-shaped notch 4, the surface layer of the nut body 1 is provided with a reflux device positioning hole 7 for fixing the integrated reflux device 2, the balls 3 can be placed through the spiral rolling groove 6 in the nut body 1, the end part of the rolling groove 6 is provided with a strip-shaped notch 4, so that the integrated reflux device 2 can be assembled and disassembled from the strip-shaped notch 4, the fixation of the integrated reflux device 2 in the strip-shaped notch 4 can be reinforced through the reflux device positioning hole 7 on the surface layer of the nut body 1, the balls can be placed through the strip-shaped notch 4 and the balls can be taken down from the rolling groove, the replacement is convenient, under the action of the screw rod of the installed ball nut, balls placed in the inner rolling groove 6 can roll along the motion direction of the screw rod, and circularly flow through a ball loop pipeline 8 connected with the rolling groove 6, so that the friction force between the ball nut and the screw rod is reduced, the transmission efficiency is high, the utility model has the advantages of simple structure and convenience in assembly and disassembly, the installation key groove 5 is fixedly processed through the inner hole of the nut body 1, and the integrated reflux device 2 can adjust the combination position of the integrated reflux device 2 and the rolling groove 6 in the radial direction of the installation key groove 5, so that the installation deviation of the integrated reflux device and the rolling groove caused by processing errors can be avoided; the ball 3 rolls through the integral type backward flow ware 2 and circulates, and ball backward flow ware 2 and spiral helicine rolling groove 6 formula injection moulding as an organic whole, multiseriate ball 3 flow back in the same angular position, and this mode has increased because of the stability when multiseriate ball flows back.
The spiral rolling groove 6 is connected with a ball loop pipeline 8, the ball loop pipeline 8 is of a U-shaped structure, one end of the ball loop pipeline 8 is installed at the front end of the rolling groove 6, the other end of the ball loop pipeline 8 is installed at the rear end of the rolling groove 6, when the balls 3 roll in the rolling groove 6 inside the nut body 1 along the motion direction of the screw rod, the balls can roll in a circulating mode through the ball loop pipeline 8, so that the balls are guaranteed to flow back, and the transmission efficiency is high.
The rear end of the nut body 1 is provided with a convex block 9, the side end of the convex block 9 is provided with a lubricating hole 10, the lubricating hole 10 is communicated with the inside of the nut body 1, manual rotation can be facilitated through the convex block 9, lubricating oil can be injected through the lubricating hole 10 at the side end of the convex block 9, friction between the nut body 1 and a screw rod can be further reduced, and the lubricating effect is increased.
The nut body 1 is made of hard steel materials, and the nut body 1 is prevented from being damaged due to impact in the sliding process
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (6)
1. A miniature ball nut which characterized in that: the nut comprises a nut body, wherein a cylindrical shape is arranged in the nut body; the nut body inner wall is provided with spiral helicine roll groove, and the inside a plurality of balls that are provided with of roll inslot portion rolls the groove tip and is provided with bar form breach, both ends department is provided with the installation keyway around the nut body, the inside detachable integral type backward flow ware that is provided with of nut body, the identical corresponding bar form breach of integral type backward flow ware, nut body top layer is provided with the backward flow ware locating hole of fixed integral type backward flow ware.
2. The miniature ball nut of claim 1, wherein: the spiral rolling groove is connected with a ball loop pipeline which is of a U-shaped structure.
3. The miniature ball nut of claim 2, wherein: one end of the ball loop pipeline is installed at the front end of the rolling groove, and the other end of the ball loop pipeline is installed at the rear end of the rolling groove.
4. The miniature ball nut of claim 1, wherein: the rear end of the nut body is provided with a convex block.
5. The miniature ball nut of claim 4, wherein: the side end of the lug is provided with a lubricating hole, and the lubricating hole is communicated with the inside of the nut body.
6. The miniature ball nut of claim 1, wherein: the nut body is made of hard steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620364.3U CN214404567U (en) | 2020-11-13 | 2020-11-13 | Miniature ball nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022620364.3U CN214404567U (en) | 2020-11-13 | 2020-11-13 | Miniature ball nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404567U true CN214404567U (en) | 2021-10-15 |
Family
ID=78033964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022620364.3U Active CN214404567U (en) | 2020-11-13 | 2020-11-13 | Miniature ball nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404567U (en) |
-
2020
- 2020-11-13 CN CN202022620364.3U patent/CN214404567U/en active Active
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| GR01 | Patent grant |