CN211599443U - Ball screw pair - Google Patents
Ball screw pair Download PDFInfo
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- CN211599443U CN211599443U CN202020179246.0U CN202020179246U CN211599443U CN 211599443 U CN211599443 U CN 211599443U CN 202020179246 U CN202020179246 U CN 202020179246U CN 211599443 U CN211599443 U CN 211599443U
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Abstract
The utility model discloses a ball screw is vice, including the drive connector, the lead screw nut cover, the fixed connector, be equipped with lead screw nut cover on ball screw is vice, the inside of lead screw nut cover is equipped with lead screw A mounting groove, lead screw B mounting groove, at lead screw A mounting groove, the inside of lead screw B mounting groove is equipped with lead screw A and lead screw B respectively, lead screw A is opposite with the thread groove in the lead screw B outside, lead screw A is equipped with the drive connector with lead screw B's one end, lead screw A is equipped with the fixed connector with lead screw B's the other end, the inside symmetry of fixed connector is equipped with annular bearing, this ball screw is vice to be equipped with lead screw A and lead screw B simultaneously, through the inside drive gear of drive connector, drive driven gear A and driven gear B respectively through the front and back regulation, thereby drive lead screw A and lead screw B respectively, this lead screw is vice reasonable in design, just can change the moving direction of lead screw.
Description
Technical Field
The utility model relates to a vice technical field of ball screw specifically is a ball screw is vice.
Background
The ball screw pair is also known as a ball screw pair and a ball screw pair. Is composed of a screw rod and a nut which are matched. The transmission device is the transmission device with the highest precision and the most common use in the transmission machinery.
When moving an object, it is generally necessary to transmit the motion generated by the power directly or indirectly through another mechanism to the final moving part. Taking an engine as an example, a piston moves up and down in the engine due to combustion of gasoline, and is finally transmitted to wheels through an intermediate mechanism to generate rotary motion.
In the world today, devices that can represent machines with various motion mechanisms, none of which can be said to have some form of motion conduction mechanism. The ball screw pair is the most reasonable product for converting rotary motion into linear motion or converting linear motion into rotary motion.
The ball screw pair is a screw transmission element which takes a steel ball as a rolling body between a screw and a nut. It can convert rotary motion into linear motion or convert linear motion into rotary motion. Therefore, the ball screw pair is a transmission element and is also a mutual conversion element of linear motion and rotary motion.
At present, a ball screw pair is widely used mechanically, but the current ball screw mechanism almost adopts a design method of a single screw, and when the motion direction of a screw nut sleeve on the ball screw is changed, the turning direction of a driving device is required to be changed to change the moving direction of the screw nut sleeve on the ball screw.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lead screw nut sleeve arranged on a ball screw pair, the inside of the lead screw nut sleeve is provided with a lead screw A mounting groove, a lead screw B mounting groove, the inside of the lead screw B mounting groove is respectively provided with a lead screw A and a lead screw B, the lead screw A is opposite to the thread groove outside the lead screw B, one end of the lead screw A and one end of the lead screw B are provided with a driving connector, the other end of the lead screw A and the other end of the lead screw B are provided with a fixed connector, the inside of the fixed connector is symmetrically provided with an annular bearing, the ball screw pair is simultaneously provided with the lead screw A and the lead screw B, the driven gear A and the driven gear B are respectively driven through front and back adjustment by a driving gear inside the driving connector, thereby the lead screw A and the lead screw B are respectively driven, the design of the lead screw pair is reasonable, the ball screw pair of, to solve the problems set forth in the background art described above.
In order to achieve the above object, the utility model provides a following technical scheme: a ball screw pair comprises a driving connector, a screw nut sleeve and a fixed connector, wherein the ball screw pair comprises a screw nut sleeve and a screw nut sleeve
The driving connector comprises a driving gear mounting groove, a driven gear A, a driving gear and a driven gear B, wherein the driving gear mounting groove is formed in the center of the inside of the driving connector, the driving gear is arranged inside the driving gear mounting groove, the driven gear A is arranged on one side of the driving gear, and the driven gear B is arranged at the other end of the driving gear;
the screw nut sleeve comprises a ball inlet and outlet hole, a ball circulating pipe, a ball groove A, a ball groove B, a screw A mounting groove and a screw B mounting groove, the screw A mounting groove and the screw B mounting groove are symmetrically arranged in the screw nut sleeve, the ball groove A is arranged in the screw A mounting groove, the ball groove B is arranged in the screw B mounting groove, and the ball circulating pipe is symmetrically arranged at the top of the screw nut sleeve;
the fixed connection head, including annular bearing, fixed connection groove on the fixed connection head, the inside symmetry of fixed connection head is equipped with annular bearing, and the central authorities of two annular bearings are equipped with fixed connection groove, fixed connection groove and fixed connection head's outer wall intercommunication.
Preferably, a screw rod A and a screw rod B are arranged inside the screw rod nut sleeve, one end of the screw rod A is fixedly connected with the driven gear A, the other end of the screw rod A is arranged inside an annular bearing inside the fixed connector, and the screw rod A is arranged inside a screw rod A mounting groove inside the screw rod nut sleeve.
Preferably, one end of the screw rod B is fixedly connected with the driven gear B, the other end of the screw rod B is arranged inside an annular bearing inside the fixed connector, and the screw rod B is arranged inside a screw rod B mounting groove inside the screw rod nut sleeve.
Preferably, two groups of ball inlet and outlet holes are formed in the top of the screw nut sleeve, two ends of the ball circulating pipe are matched with the ball inlet and outlet holes in the top of the screw nut sleeve, and the ball circulating pipe is communicated with a ball groove in the screw nut sleeve.
Preferably, balls are arranged inside the ball groove A and the ball groove B.
Preferably, the screw rod A and the screw rod B are installed in a mode that the thread space of the outer wall of the screw rod A is the same as that of the outer wall of the screw rod B, and the threads of the screw rod A and the threads of the screw rod B are opposite.
Preferably, the production method of the ball screw pair comprises the following steps:
A. and (3) processing a screw rod: carrying out primary processing on the screw rod A and the screw rod B by adopting screw rod processing equipment, and carrying out finish machining on the screw rod A and the screw rod B after the primary processing;
B. processing a shell of the screw nut sleeve by adopting screw nut sleeve processing equipment, polishing a ball groove in the screw nut sleeve, assembling the processed screw nut sleeve, mounting balls in the ball groove, and mounting a ball circulating pipe at the top of the screw nut sleeve to enable the ball groove to be communicated with the ball circulating pipe;
C. respectively installing a screw rod A and a screw rod B in the screw rod nut sleeve;
D. and the ends of the screw rod A and the screw rod B are respectively provided with a driving connector and a fixed connector.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the thread space between the outer walls of the screw rod A and the screw rod B is the same, and the threads of the screw rod A and the screw rod B are installed oppositely, so that the high stability of the screw rod pair can be ensured, and the precision of the screw rod pair is also ensured;
(2) the screw pair is reasonable in design, and the moving direction of the screw nut sleeve in the horizontal direction can be changed under the condition that the steering of the driving motor is not required to be changed by adopting the design of the double screws.
Drawings
FIG. 1 is a schematic view of the ball screw pair of the present invention;
FIG. 2 is a schematic view of the internal structure of the driving connector of the present invention;
FIG. 3 is a schematic view of the end face of the screw pair of the present invention;
FIG. 4 is a top cross-sectional view of the screw pair of the present invention;
fig. 5 is a cross-sectional view of the screw pair of the present invention.
In the figure: 1. driving the connector; 2. a screw mandrel A; 3. a screw rod nut sleeve; 4. a screw mandrel B; 5. ball inlet and outlet holes; 6. a ball circulation tube; 7. fixing the connector; 8. an annular bearing; 9. a ball groove A; 10. a drive gear mounting slot; 11. a driven gear A; 12. a drive gear; 13. a driven gear B; 14. a screw rod A is arranged in the groove; 15. a lead screw B mounting groove; 16. fixing and connecting grooves; 17. and a ball groove B.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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. 1-5, the present invention provides a technical solution: a ball screw pair comprises a driving connector 1, a screw nut sleeve 3 and a fixed connector 7,
the ball screw pair is provided with a screw nut sleeve 3, the screw nut sleeve 3 comprises a ball inlet and outlet hole 5, a ball circulating pipe 6, a ball groove A9, a ball groove B17, a screw A mounting groove 14, a screw B mounting groove 15, the screw nut sleeve 3 is symmetrically provided with a screw A mounting groove 14 and a screw B mounting groove 15, the screw A mounting groove 14 is internally provided with a ball groove A9, the screw B mounting groove 15 is internally provided with a ball groove B17, the screw A mounting groove 14 is internally provided with a ball groove A9, the screw B mounting groove 15 is internally provided with a ball groove B17, the screw nut sleeve 3 is symmetrically provided with the ball circulating pipe 6 at the top, and balls are arranged in the ball groove A9 and the ball groove B17.
The screw rod nut sleeve 3 is internally provided with a screw rod A2 and a screw rod B4, one end of the screw rod A2 is fixedly connected with a driven gear A11, the other end of the screw rod A2 is arranged inside an annular bearing 8 inside a fixed connector 7, the screw rod A2 is arranged inside a screw rod A mounting groove 14 inside the screw rod nut sleeve 3, the top of the screw rod nut sleeve 3 is provided with two groups of ball inlet and outlet holes 5, two ends of a ball circulation pipe 6 are matched and mounted with the ball inlet and outlet holes 5 at the top of the screw rod nut sleeve 3, and the ball circulation pipe 6 is communicated with a ball groove inside the screw rod nut sleeve 3.
Screw rod A2 is the same with the screw thread interval of screw rod B4 outer wall, screw rod A2 is installed with the screw thread of screw rod B4 opposite, screw rod A2 is equipped with drive connector 1 with the one end of screw rod B4, screw rod A2 is equipped with fixed connector 7 with the other end of screw rod B4, including drive gear mounting groove 10 on the drive connector 1, driven gear A11, drive gear 12, driven gear B13, the inside center of drive connector 1 is equipped with drive gear mounting groove 10, the inside of drive gear mounting groove 10 is equipped with drive gear 12, one side of drive gear 12 is equipped with driven gear A11, the other end of drive gear 12 is equipped with driven gear B13.
The fixed connection head 7 is wrapped by the annular bearing 8, the fixed connection groove 16, the annular bearing 8 is symmetrically arranged inside the fixed connection head 7, the fixed connection grooves 16 are arranged in the centers of the two annular bearings 8, and the fixed connection grooves 16 are communicated with the outer wall of the fixed connection head 7.
One end of the screw rod B4 is fixedly connected with the driven gear B13, the other end of the screw rod B4 is arranged inside the annular bearing 8 inside the fixed connector 7, and the screw rod B4 is arranged inside the screw rod B mounting groove 15 inside the screw rod nut sleeve 3.
When the ball screw pair operates, the driving gear 12 is meshed with the driven gear B13, the driving gear 12 indirectly drives the screw rod B to rotate, so that the screw rod nut sleeve 3 moves towards one direction on the screw rod A2 and the screw rod B4, when the screw rod nut sleeve 3 needs to move towards the other direction, the driving gear 12 pushes inwards in the driving connector 1, so that the driving gear 12 is meshed with the driven gear A11, the screw rod A2 is driven to rotate, and the screw rod A2 and the screw rod nut sleeve 3 on the screw rod B4 move towards the other direction.
The production method comprises the following steps: when the ball screw pair is processed, firstly, a screw rod processing device is used for primarily processing a screw rod A2 and a screw rod B4, the primarily processed screw rod A2 and the screw rod B4 are subjected to finish processing, a screw rod nut sleeve 3 processing device is used for processing a shell of a screw rod nut sleeve 3, a ball groove in the screw rod nut sleeve 3 is subjected to polishing treatment, then the processed screw rod nut sleeve 3 is assembled, balls are arranged in the ball groove, a ball circulating pipe 6 is arranged at the top of the screw rod nut sleeve 3, the ball groove is communicated with the ball circulating pipe 6, the screw rod A2 and the screw rod B4 are respectively arranged in the screw rod nut sleeve 3, and a driving connector 1 and a fixed connector 7 are respectively arranged at the ends of the screw rod A2 and the screw rod B4.
The screw pair is reasonable in design, and the moving direction of the screw nut sleeve in the horizontal direction can be changed under the condition that the steering of the driving motor is not required to be changed by adopting the design of the double screws.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a ball screw is vice, includes drive connector (1), lead screw nut cover (3), fixed connector (7), its characterized in that: the above-mentioned
The driving connector comprises a driving connector (1), wherein the driving connector (1) comprises a driving gear mounting groove (10), a driven gear A (11), a driving gear (12) and a driven gear B (13), the driving gear mounting groove (10) is formed in the center of the inside of the driving connector (1), the driving gear (12) is arranged inside the driving gear mounting groove (10), the driven gear A (11) is arranged on one side of the driving gear (12), and the driven gear B (13) is arranged at the other end of the driving gear (12);
the screw-nut sleeve (3) comprises a ball inlet and outlet hole (5), a ball circulating pipe (6), a ball groove A (9), a ball groove B (17), a screw A mounting groove (14) and a screw B mounting groove (15), the screw A mounting groove (14) and the screw B mounting groove (15) are symmetrically arranged in the screw-nut sleeve (3), the ball groove A (9) is arranged in the screw A mounting groove (14), the ball groove B (17) is arranged in the screw B mounting groove (15), and the ball circulating pipe (6) is symmetrically arranged at the top of the screw-nut sleeve (3);
fixed connection head (7), wrap annular bearing (8) on fixed connection head (7), fixed connection groove (16), the inside symmetry of fixed connection head (7) is equipped with annular bearing (8), and the central authorities of two annular bearings (8) are equipped with fixed connection groove (16), fixed connection groove (16) and the outer wall intercommunication of fixed connection head (7).
2. The ball screw pair of claim 1, wherein: the inside of lead screw nut cover (3) is equipped with lead screw A (2) and lead screw B (4), the one end and driven gear A (11) fixed connection of lead screw A (2), the other end setting of lead screw A (2) is inside at inside annular bearing (8) of fixed connection head (7), lead screw A (2) set up the inside at inside lead screw A mounting groove (14) of lead screw nut cover (3).
3. The ball screw pair of claim 1, wherein: one end of the screw rod B (4) is fixedly connected with the driven gear B (13), the other end of the screw rod B (4) is arranged inside an annular bearing (8) inside the fixed connector (7), and the screw rod B (4) is arranged inside a screw rod B mounting groove (15) inside the screw rod nut sleeve (3).
4. The ball screw pair of claim 1, wherein: the screw and nut combined ball screw and nut assembly is characterized in that two groups of ball inlet and outlet holes (5) are formed in the top of the screw and nut sleeve (3), two ends of a ball circulating pipe (6) are installed in a matched mode with the ball inlet and outlet holes (5) in the top of the screw and nut sleeve (3), and the ball circulating pipe (6) is communicated with a ball groove in the screw and nut sleeve (3).
5. The ball screw pair of claim 1, wherein: and balls are arranged in the ball groove A (9) and the ball groove B (17).
6. A ball screw pair according to claim 2, wherein: the screw rod A (2) and the screw rod B (4) are arranged in the same threaded interval, and the screw rod A (2) and the screw rod B (4) are arranged in the opposite threaded interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179246.0U CN211599443U (en) | 2020-02-18 | 2020-02-18 | Ball screw pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179246.0U CN211599443U (en) | 2020-02-18 | 2020-02-18 | Ball screw pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211599443U true CN211599443U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020179246.0U Active CN211599443U (en) | 2020-02-18 | 2020-02-18 | Ball screw pair |
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| Country | Link |
|---|---|
| CN (1) | CN211599443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255872A (en) * | 2020-02-18 | 2020-06-09 | 江苏品德机电科技有限公司 | Ball screw pair and production method thereof |
-
2020
- 2020-02-18 CN CN202020179246.0U patent/CN211599443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255872A (en) * | 2020-02-18 | 2020-06-09 | 江苏品德机电科技有限公司 | Ball screw pair and production method thereof |
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