CN201615197U - Ball screw with automatically compensable gaps - Google Patents
Ball screw with automatically compensable gaps Download PDFInfo
- Publication number
- CN201615197U CN201615197U CN2010201108082U CN201020110808U CN201615197U CN 201615197 U CN201615197 U CN 201615197U CN 2010201108082 U CN2010201108082 U CN 2010201108082U CN 201020110808 U CN201020110808 U CN 201020110808U CN 201615197 U CN201615197 U CN 201615197U
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- nut
- ball screw
- screw rod
- screw
- groove
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Abstract
The utility model relates to a ball screw with automatically compensable gaps, which aims to solve the technical problems that the ball screw with automatically compensable gaps can automatically compensate rotating abrasion of a screw rod and nuts, and manufacturing and assembling of a reverser of the screw rod are extremely simple. The technical scheme of the ball screw includes that the screw is provided with the screw rod, a left nut and a right nut; the left nut and the right nut are connected with the screw rod in threaded manner; and a spacer ring is arranged between the two nuts. The ball screw is characterized in that wave-shaped spring gaskets are sandwiched inside cavities by the left nut, the right nut, the space ring and the screw rod; grooves are respectively arranged on the hole wall of the left nut and the hole wall of the right nut; and an integral multi-groove inner circulation reverser is installed inside each groove. The ball screw can be used for moving a working platen such as a digital control wire cutting machine tool, a processing center, a carving machine, a digital control milling machine and the like, and devices needing accurate moving and large bearing.
Description
Technical field
The utility model relates to a kind of ball screw, particularly a kind of ball screw of energy automatic compensation gap.Be applicable to numerically controlled wire cutting machine, machining center, engraving machine, the moving of working plates such as numerical control milling machine, and need accurately to move and need on the equipment of big carrying.
Background technique
In numerically controlled wire cutting machine, moving of working plate finished by ball screw, but owing to be the uncompensated device of single nut work, time one long lead screw and nut circle groove will wear and tear, and that the precision of wire cutting machine tool requires is higher, generally at about several, so a common leading screw is generally used about 2 years and will be scrapped, user cost is very high.Ball screw is when work, ball can normally roll in the leading screw in order to satisfy, also need to install reverser, ball is played guiding and ringing, currently used reverser generally is located on the nut inner hole, and to establish four to five reversers on a nut, complex structure can not move during installation, is difficult to the location, processing difficulties, the scrappage height.
The patent No. is that the utility model patent of ZL 200720110221.X discloses the technology of a kind of " ball screw of torsion compensate for clearance " by name, the nut that this scheme has screw rod and is threaded with it, described nut comprises initiatively nut and driven nut, is equiped with an end between the two and is fixed in the nut the other end initiatively and is fixed in the extension spring of driven nut or torsion spring as link.After adopting this kind result, this ball screw can prolong the working life of leading screw greatly along with the degree automatic compensation gap of wearing and tearing.But the link structure more complicated that this patented technology adopted is implemented and making gets up to have certain degree of difficulty.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of ball screw of energy automatic compensation gap is provided, and it can compensate the rotation wearing and tearing of screw rod and nut automatically, and reverser has been done improvement, and it is made and the assembly process simplification.
The technological scheme that the utility model adopted is: a kind of ball screw of energy automatic compensation gap, have screw rod and left nut that is threaded with it and right nut, folder is established the circular spacer ring that the cross section is the T font between two nuts, a breach is respectively offered in these spacer ring two outsides symmetrically, and match with pressing plate on being fixed on left and right sides nut, it is characterized in that: be folded with the wavy spring packing ring in the cavity that between left nut, right nut, spacer ring and screw rod, forms; Respectively offer a groove that is communicated with the nut exterior edge face on the inner hole wall of left side nut and the inner hole wall of right nut, cycle reverses device in the whole multiple-grooved is housed in the groove.
The projection of described wavy spring packing ring is ring, and its external diameter equals the internal diameter of spacer ring.
The cycle reverses device is made by nylon in the described whole multiple-grooved.
The cycle reverses device fills up whole groove in the described whole multiple-grooved, and it is provided with the raceway that makes things convenient for the ball rolling with the surface of contact of screw rod.
Described groove both sides have the inclined-plane.
The beneficial effects of the utility model are: adopt the structure of joining the wavy spring packing ring in the T font spacer ring, when screw rod and nut rotate wear and tear after, utilize the elastic force of wavy spring, automatically compensate for wear gap, prolonged the working life of leading screw, and the assembling of this structure is simple, structure is firm; The reverser that adopts nylon to make directly is installed between nut and the screw rod in the groove, and its structure and make has all very simply reduced cost, but reverser when mounted left and right sides close-fitting move, can accurately aim at the interior raceway of nut.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the plan view of spacer ring in the present embodiment.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the plan view of present embodiment center platen.
Fig. 5 is the B-B sectional view of Fig. 4.
Fig. 6 is the plan view of waveform spring washer in the present embodiment.
Fig. 7 is the plan view of Fig. 6.
Fig. 8 is the plan view of the interior cycle reverses device of whole multiple-grooved in the present embodiment.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the worm's eye view of Fig. 9.
Embodiment
As shown in Figure 1, left nut 2 and right nut 3 that present embodiment has screw rod 1 and is threaded with it, folder is established the circular spacer ring 4 that a cross section is the T font between the nut of the left and right sides.The internal diameter of spacer ring 4 is greater than the external diameter of screw rod 1, its structure such as Fig. 2, shown in Figure 3, and its two outsides respectively offer a breach 4-2 symmetrically, and this breach can conveniently be fixed in 5 pairs of spacer rings of pressing plate, 4 location on the nut of the left and right sides, prevents that spacer ring from sliding.The structure of pressing plate 5 such as Fig. 4, shown in Figure 5, it is fixed on the nut by the hole 5-1 that screw passes on the pressing plate.
Be folded with wavy spring packing ring 6 in the cavity that between left and right sides nut, spacer ring 4 and screw rod 1, forms, its structure such as Fig. 6, shown in Figure 7, packing ring be projected as ring, for this wavy spring packing ring 6 can firmly be in the cavity and be unlikely to loosening, when being provided with, the external diameter of packing ring (external diameter of packing ring projection) equals the internal diameter of spacer ring 4.The spacer ring 4 of employing T shape structure utilizes its outside protruding part 4-1 to take and is placed on left and right sides nut sunk part, remaining part stretches between two nuts, spacer ring 4 just can more firmly be in and be unlikely to loosening up and down between two nuts like this, and then make the wavy spring packing ring 6 that folder is established in it be unlikely to rock, be in stable working environment.During assembling, apply a precompression for earlier wavy spring packing ring 6, make left and right sides nut that the extruding force of certain intensity be arranged the wavy spring packing ring, the trend that uphold the oriented both sides of wavy spring, when wearing and tearing take place in leading screw, can be along with the degree of wearing and tearing, wavy spring is upheld to both sides under the elastic force effect, thereby compensate the gap that produces automatically, prolonged the life-span of leading screw.
Respectively offer the groove that both sides have the inclined-plane on the inner hole wall of left and right nut symmetrically, an end of groove extends to the nut exterior edge face, and cycle reverses device 7 in the whole multiple-grooved of being made by nylon is housed in the groove.The structure of this reverser such as Fig. 8, Fig. 9, shown in Figure 10, its inboard has ball road 7-1, and this raceway can make things convenient for ball to do the rolling of positive and negative direction, makes ball periodic duty in nut.The shape and the groove of this reverser are complementary, when mounted, can very easily cycle reverses device 7 in the whole multiple-grooved be squeezed in the groove by the nut outside, and reverser can close-fitting the groove move left and right to aim at the interior raceway of nut, the inclined-plane that the groove both sides have has guaranteed that again the reverser in the groove can loose or dislocation.If reverser damages, change also very convenient.
Claims (5)
1. the ball screw of an energy automatic compensation gap, left nut (2) that has screw rod (1) and be threaded with it and right nut (3), folder is established the circular spacer ring (4) that the cross section is the T font between two nuts, a breach (4-2) is respectively offered in these spacer ring two outsides symmetrically, and match with pressing plate (5) on being fixed on left and right sides nut, it is characterized in that: be folded with wavy spring packing ring (6) in the cavity that between left nut (2), right nut (3), spacer ring (4) and screw rod (1), forms; Respectively offer a groove that is communicated with the nut exterior edge face on the inner hole wall of left side nut (2) and the inner hole wall of right nut (3), cycle reverses device (7) in the whole multiple-grooved is housed in the groove.
2. the ball screw of energy automatic compensation gap according to claim 1, it is characterized in that: the projection of described wavy spring packing ring (6) is ring, and its external diameter equals the internal diameter of spacer ring (4).
3. the ball screw of energy automatic compensation gap according to claim 1 and 2 is characterized in that: cycle reverses device (7) is made by nylon in the described whole multiple-grooved.
4. ball screw that can automatic compensation gap according to claim 1 and 2 is characterized in that: cycle reverses device (7) fills up whole groove in the described whole multiple-grooved, and it is provided with the raceway (7-1) that makes things convenient for the ball rolling with the surface of contact of screw rod (1).
5. the ball screw of energy automatic compensation gap according to claim 4, it is characterized in that: described groove both sides have the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201108082U CN201615197U (en) | 2010-02-03 | 2010-02-03 | Ball screw with automatically compensable gaps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201108082U CN201615197U (en) | 2010-02-03 | 2010-02-03 | Ball screw with automatically compensable gaps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615197U true CN201615197U (en) | 2010-10-27 |
Family
ID=43001566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201108082U Expired - Fee Related CN201615197U (en) | 2010-02-03 | 2010-02-03 | Ball screw with automatically compensable gaps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615197U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762176A (en) * | 2019-11-29 | 2020-02-07 | 南京工艺装备制造有限公司 | Single-circulation ball nut body capable of being spliced |
| CN115978154A (en) * | 2023-03-23 | 2023-04-18 | 天璟科技(深圳)有限公司 | Self-adaptive pre-piezoelectric motor lead screw assembly |
-
2010
- 2010-02-03 CN CN2010201108082U patent/CN201615197U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762176A (en) * | 2019-11-29 | 2020-02-07 | 南京工艺装备制造有限公司 | Single-circulation ball nut body capable of being spliced |
| CN115978154A (en) * | 2023-03-23 | 2023-04-18 | 天璟科技(深圳)有限公司 | Self-adaptive pre-piezoelectric motor lead screw assembly |
| CN115978154B (en) * | 2023-03-23 | 2023-08-22 | 天璟科技(深圳)有限公司 | Self-adaptive pre-pressing motor screw rod assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU FUDE MACHINE TOOL CO., LTD. Free format text: FORMER OWNER: HANGZHOU FUDE MACHINE TOOL MANUFACTURE CO., LTD. Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310004 HANGZHOU, ZHEJIANG PROVINCE TO: 311500 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121009 Address after: Tong Jun Tonglu County of Hangzhou City, Zhejiang province 311500 street baiyunyuan Road No. 655 Patentee after: Hangzhou Ford Machine Tool Co., Ltd. Address before: Hangzhou City, Zhejiang province 310004 Xiacheng Desheng road Hermitage village three group box 419 Patentee before: Hangzhou Fude Machine Tool Manufacture Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20190203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |