CN212106823U - Novel ball screw - Google Patents
Novel ball screw Download PDFInfo
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- CN212106823U CN212106823U CN201922133732.9U CN201922133732U CN212106823U CN 212106823 U CN212106823 U CN 212106823U CN 201922133732 U CN201922133732 U CN 201922133732U CN 212106823 U CN212106823 U CN 212106823U
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Abstract
The utility model provides a novel ball screw relates to the drive assembly field. This novel ball screw, including cylinder pole and sleeve, the cylindrical surface cup joints with the sleeve activity, and the surface and the laminating of telescopic inner wall of cylinder pole, first screw thread has been seted up to telescopic surface annular, the both ends of cylinder pole are provided with the dead lever respectively, the keyway has been seted up in the front of dead lever, the bottom of keyway is linked together with the back of dead lever. This novel ball screw, cylinder pole and sleeve adopt the activity to cup joint, peg graft each other between locating lever and the locating hole for sleeve and cylinder pole axial are injectd, rotate the nut simultaneously along cylinder pole axial displacement, extrude its telescopic one end axial atress, thereby fix the sleeve, and overall design makes between sleeve and the cylinder pole conveniently peg graft and install, changes the sleeve after to wearing and tearing simultaneously, and practicality and flexibility are stronger.
Description
Technical Field
The utility model relates to a transmission assembly technical field specifically is a novel ball screw.
Background
Ball screw turns into linear motion with rotary motion, or turns into rotary motion's ideal product with linear motion, and ball screw comprises screw rod, nut and ball, and its function is turning into linear motion with rotary motion, and present lead screw adopts the cylinder pole processing to form mostly, and the lead screw belongs to a whole with the threaded rod, along with the long-time use of lead screw, has certain wearing and tearing, and the thread clearance grow of lead screw can't be restoreed, only can change whole lead screw, to the not enough of current device, the utility model discloses a novel ball screw.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a novel ball screw to solve the problem of proposing among the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a novel ball screw comprises a cylindrical rod and a sleeve, wherein the outer surface of the cylindrical rod is movably sleeved with the sleeve, the outer surface of the cylindrical rod is attached to the inner wall of the sleeve, first threads are annularly arranged on the outer surface of the sleeve, fixing rods are respectively arranged at two ends of the cylindrical rod, a key groove is arranged on the front surface of each fixing rod, the bottom of each key groove is communicated with the back surface of each fixing rod, second threads are arranged on the outer surface of one end of the cylindrical rod, the other end of the cylindrical rod is fixedly sleeved with a positioning ring, a positioning hole is arranged at one side, close to the sleeve, of each positioning ring, a positioning rod is arranged at the end part of the sleeve and opposite to the positioning hole, the end part of each positioning rod is movably inserted into the positioning hole, one end, close to the first threads, of the cylindrical rod is in threaded connection, and a ball is arranged inside the first thread in a rolling manner.
Preferably, the number of the positioning holes is four, the four positioning holes are annularly and equidistantly distributed on the surface of the positioning ring, the depth of each positioning hole is equal to the length of each positioning rod, and the inner diameter of each positioning hole is equal to the diameter of each positioning rod.
Preferably, the outer diameter of the retaining ring and the mounting ring is the same as the outer diameter of the sleeve.
Preferably, the lead of the first thread is 12.1082 ± 0.02mm, the thread form angle of the first thread is 40 °, the outer diameter of the sleeve is 18.74mm, the wear difference of the outer diameter is 0.1mm, and the inner diameter of the sleeve is 13.12 ± 0.05 mm.
Preferably, the ball has a diameter of 2.15mm, and the maximum circular diameter of the outer surface of the ball formed around the first screw thread is 19.267 mm.
Preferably, the internal thread of the turning nut is adapted to the second thread.
Preferably, the surface of the mounting ring is provided with an anti-skid texture groove.
Preferably, both ends of the cylindrical rod and the end part of the fixing rod are chamfered.
The utility model provides a novel ball screw, its beneficial effect who possesses as follows:
1. this novel ball screw, through setting up the cylinder pole, the sleeve, the holding ring, swivel nut and collar, the cylinder pole adopts the activity to cup joint with the sleeve, both mutual independence, peg graft each other between through locating lever and the locating hole, make sleeve and cylinder pole axial inject, swivel nut is along cylinder pole axial displacement simultaneously, extrude its telescopic one end axial atress, thereby fix the sleeve, overall design makes between sleeve and the cylinder pole conveniently peg graft and install, change the sleeve after wearing and tearing simultaneously, practicality and flexibility are stronger.
2. This novel ball screw through setting up the collar, is provided with anti-skidding texture groove, the axial stability of effectual assurance sleeve in one side of collar.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the portion A of the novel body 1;
fig. 3 is a side view of the structure of the spacing ring of the present invention;
FIG. 4 is a perspective view of the mounting ring structure of the present invention;
fig. 5 is a cross-sectional view of a first thread structure of the present invention.
In the figure: 1 cylindrical rod, 2 sleeves, 201 first threads, 3 fixing rods, 4 key grooves, 5 second threads, 6 positioning rings, 7 positioning holes, 8 positioning rods, 9 rotating nuts, 10 mounting rings and 11 balls.
Detailed Description
The embodiment of the utility model provides a novel ball screw, as shown in fig. 1-5, including a cylindrical rod 1 and a sleeve 2, the outer surface of the cylindrical rod 1 is movably sleeved with the sleeve 2, and the outer surface of the cylindrical rod 1 is attached to the inner wall of the sleeve 2, the outer surface of the sleeve 2 is annularly provided with a first thread 201, the lead of the first thread 201 is 12.1082 + -0.02 mm, the tooth form angle of the first thread 201 is 40 degrees, the outer diameter of the sleeve 2 is 18.74mm, the abrasion difference of the outer diameter is 0.1mm, the inner diameter of the sleeve 2 is 13.12 + -0.05 mm, the two ends of the cylindrical rod 1 are respectively provided with a fixing rod 3, the two ends of the cylindrical rod 1 and the end of the fixing rod 3 are both chamfered, the front surface of the fixing rod 3 is provided with a key groove 4, the bottom of the key groove 4 is communicated with the back surface of the fixing rod 3, the outer surface of one end of the cylindrical rod 1 is provided with, the external diameter of holding ring 6 and collar 10 is the same with sleeve 2's external diameter, and locating hole 7 has been seted up to one side that holding ring 6 is close to sleeve 2, and the quantity of locating hole 7 is four, and four locating holes 7 are annular equidistance and distribute on holding ring 6's surface, and the degree of depth of locating hole 7 is the same with the length of locating lever 8, and the internal diameter of locating hole 7 is the same with the diameter of locating lever 8.
To sum up, the novel ball screw is characterized in that the cylindrical rod 1 and the sleeve 2 are movably sleeved through the arrangement of the cylindrical rod 1, the sleeve 2, the positioning ring 6, the rotating nut 9 and the mounting ring 10, the cylindrical rod 1 and the sleeve 2 are mutually independent, the sleeve 2 and the cylindrical rod 1 are axially limited through mutual insertion between the positioning rod 8 and the positioning hole 7, meanwhile, the rotating nut 9 moves axially along the cylindrical rod 1 to extrude one end of the sleeve 2 under axial stress, so that the sleeve 2 is fixed, the sleeve 2 and the cylindrical rod 1 are conveniently inserted and mounted through integral design, meanwhile, the worn sleeve 2 is replaced, the practicability and flexibility are strong, the mounting ring 10 is arranged, the anti-skidding texture groove is arranged on one side of the mounting ring 10, the axial stability of the sleeve 2 is effectively ensured, the end part of the cylindrical rod 1 is inserted and connected along the inner ring of the sleeve 2 until the positioning rod 8 is inserted and connected with the inner diameter of the positioning, make sleeve 2 and 1 axial of cylinder pole inject, then, the second screw thread 5 of rotating nut 9 and 1 one end of cylinder pole is connected, and the rotating nut 9 is along 1 axial displacement of cylinder pole, extrudees the one end axial atress of its sleeve 2 to fix sleeve 2, at last, fix it through the keyway 4 of seting up on the dead lever 3.
The working principle is as follows: the user is when the operation, at first, the tip of cylinder pole 1 is pegged graft along the inner circle of sleeve 2, peg graft each other until the internal diameter of locating lever 8 and locating hole 7, make sleeve 2 inject with 1 axial of cylinder pole, then, the second screw thread 5 of rotating nut 9 and 1 one end of cylinder pole is connected, rotating nut 9 is along 1 axial displacement of cylinder pole, extrude its one end axial atress of sleeve 2, thereby fix sleeve 2, at last, it is fixed with it through keyway 4 of seting up on the dead lever 3, otherwise when dismantling cylinder pole 1 and sleeve 2, implement according to above-mentioned opposite can.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a novel ball screw, includes cylinder pole (1) and sleeve (2), its characterized in that: the outer surface of the cylindrical rod (1) is movably sleeved with the sleeve (2), the outer surface of the cylindrical rod (1) is attached to the inner wall of the sleeve (2), first threads (201) are annularly arranged on the outer surface of the sleeve (2), fixing rods (3) are respectively arranged at two ends of the cylindrical rod (1), a key groove (4) is arranged on the front surface of each fixing rod (3), the bottom of each key groove (4) is communicated with the back surface of each fixing rod (3), second threads (5) are arranged on the outer surface of one end of the cylindrical rod (1), the other end of the cylindrical rod (1) is fixedly sleeved with a positioning ring (6), a positioning hole (7) is arranged on one side, close to the sleeve (2), of each positioning ring (6), a positioning rod (8) is arranged at the end part of the sleeve (2) and in a position opposite to the positioning hole (7), and the end part of each positioning rod (8), one end, close to the first thread (201), of the cylindrical rod (1) is in threaded connection with a rotating nut (9), one side, close to the sleeve (2), of the rotating nut (9) is fixedly welded with the mounting ring (10), and balls (11) are arranged inside the first thread (201) in a rolling mode.
2. The novel ball screw of claim 1, wherein: the number of the positioning holes (7) is four, the four positioning holes (7) are annularly and equidistantly distributed on the surface of the positioning ring (6), the depth of each positioning hole (7) is equal to the length of each positioning rod (8), and the inner diameter of each positioning hole (7) is equal to the diameter of each positioning rod (8).
3. The novel ball screw of claim 1, wherein: the outer diameters of the positioning ring (6) and the mounting ring (10) are the same as the outer diameter of the sleeve (2).
4. The novel ball screw of claim 1, wherein: the lead of the first thread (201) is 12.1082 +/-0.02 mm, the thread form angle of the first thread (201) is 40 degrees, the outer diameter of the sleeve (2) is 18.74mm, the abrasion difference of the outer diameter is 0.1mm, and the inner diameter of the sleeve (2) is 13.12 +/-0.05 mm.
5. The novel ball screw of claim 1, wherein: the diameter of the ball (11) is 2.15mm, and the maximum diameter of a circle formed by the outer surface of the ball (11) around the threads of the first thread (201) is 19.267 mm.
6. The novel ball screw of claim 1, wherein: the internal thread of the rotating nut (9) is matched with the second thread (5).
7. The novel ball screw of claim 1, wherein: the surface of the mounting ring (10) is provided with an anti-skid texture groove.
8. The novel ball screw of claim 1, wherein: and chamfering treatment is carried out on both ends of the cylindrical rod (1) and the end part of the fixed rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133732.9U CN212106823U (en) | 2019-12-01 | 2019-12-01 | Novel ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922133732.9U CN212106823U (en) | 2019-12-01 | 2019-12-01 | Novel ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212106823U true CN212106823U (en) | 2020-12-08 |
Family
ID=73620745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922133732.9U Active CN212106823U (en) | 2019-12-01 | 2019-12-01 | Novel ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212106823U (en) |
-
2019
- 2019-12-01 CN CN201922133732.9U patent/CN212106823U/en active Active
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