CN219866120U - Bidirectional ball screw with positioning bolt - Google Patents
Bidirectional ball screw with positioning bolt Download PDFInfo
- Publication number
- CN219866120U CN219866120U CN202321212398.6U CN202321212398U CN219866120U CN 219866120 U CN219866120 U CN 219866120U CN 202321212398 U CN202321212398 U CN 202321212398U CN 219866120 U CN219866120 U CN 219866120U
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- Prior art keywords
- screw rod
- screw
- shaft
- rod shaft
- connecting sleeve
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 230000033001 locomotion Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a bidirectional ball screw with a positioning bolt, which comprises a screw shaft A and a screw shaft B, wherein the screw shaft A and the screw shaft B are positioned on the same horizontal axis, a connecting sleeve is arranged between the screw shaft A and the screw shaft B, one end of the screw shaft A and one end of the screw shaft B respectively extend from two ends of the connecting sleeve to the inner side, a plurality of positioning thread grooves are respectively arranged at the two ends of the connecting sleeve at equal angles, and a positioning bolt is screwed on the inner side of each positioning thread groove; in the utility model, a plurality of positioning bolt bolts are designed at the joint of the screw rod shaft and the connecting sleeve for abutting and positioning, then the screw rod shaft is screwed between the two screw rod shafts through the extrusion bolt positioned in the middle of the connecting sleeve, and the two screw rod shafts are extruded to move outwards, so that the screw threads on the positioning bolt bolts and the screw rod shafts are gradually close to each other and mutually abutted, the gap between the positioning bolt bolts and the screw rod shafts is eliminated, and the screw rod shaft is more firmly and stably installed.
Description
Technical Field
The utility model belongs to the technical field of bidirectional ball screws, and particularly relates to a bidirectional ball screw with a positioning bolt.
Background
The ball screw consists of a screw shaft, a screw sliding sleeve and a steel ball. The ball screw is a transmission element most commonly used on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. The bidirectional ball screw is generally assembled by two screws with opposite screw thread rotation directions, and two screw rod shafts are respectively matched with one screw rod sliding sleeve, so that the two screw rod sliding sleeves can synchronously move towards the middle or mutually separate along with the rotation of the bidirectional ball screw.
The two screw shafts of the two-way ball screw are mutually opposite directions at present and are connected through the connecting sleeve, two ends of the connecting sleeve are respectively abutted against the corresponding screw shafts through a bolt, and in the installation mode, gaps can exist between the abutted bolts and threads of the screw shafts possibly, and due to the fact that the whole weight of the screw shafts is large, small-amplitude movement of the screw shafts and the bolts possibly occurs under the conditions of installation and pulling, and the installation firmness is limited.
Disclosure of Invention
The utility model aims to provide a bidirectional ball screw with a positioning bolt, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a take two-way ball screw of location bolt, includes screw shaft A and screw shaft B, be provided with screw sliding sleeve A on the screw shaft A, be provided with screw sliding sleeve B on the screw shaft B, screw shaft A and screw shaft B are located same horizontal axis, be provided with the adapter sleeve between screw shaft A and the screw shaft B, screw shaft A's one end and screw shaft B's one end extend to the inboard from the both ends of adapter sleeve respectively, the both ends of adapter sleeve are equiangular respectively provided with a plurality of positioning thread grooves, and the inboard spin of every positioning thread groove is provided with location bolt, the inboard one end of location bolt extends to the inboard of adapter sleeve, and location bolt respectively with screw gap bottom surface and screw gap side on screw shaft A and screw gap side support tight on screw shaft B, be provided with the extrusion thread groove in the middle of the outside of adapter sleeve, the inboard one end of extrusion bolt extends to screw shaft A and screw shaft B centre, and the inboard one end of extrusion bolt offsets with screw shaft A and screw shaft B's tip simultaneously.
Preferably, connectors are arranged at one ends of the outer sides of the screw shaft A and the screw shaft B, the connectors and the corresponding screw shaft A are of an integrated structure, and the screw shaft B and the corresponding connectors are of an integrated structure.
Preferably, the rotation direction of the screw thread on the screw rod shaft A and the rotation direction of the screw thread on the screw rod shaft B are opposite to each other.
Preferably, the inner side one ends of the positioning bolt and the extrusion bolt are respectively provided with a conical guide head, and the tops of the positioning bolt and the extrusion bolt are respectively provided with a polygonal pulling groove.
Preferably, the inner diameter of the connecting sleeve is matched with the diameters of the screw rod shaft A and the screw rod shaft B, and the extrusion bolts are distributed on the connecting sleeve in a central symmetry mode.
Compared with the prior art, the utility model has the beneficial effects that: in the utility model, a plurality of positioning bolt bolts are designed at the joint of the screw rod shaft and the connecting sleeve for abutting and positioning, then the screw rod shaft is screwed between the two screw rod shafts through the extrusion bolt positioned in the middle of the connecting sleeve, and the two screw rod shafts are extruded to move outwards, so that the screw threads on the positioning bolt bolts and the screw rod shafts are gradually close to each other and mutually abutted, the gap between the positioning bolt bolts and the screw rod shafts is eliminated, and the screw rod shaft is more firmly and stably installed.
Drawings
Fig. 1 is a schematic elevational view of the present utility model.
Fig. 2 is a schematic view of a partial cross-sectional structure of the present utility model.
Fig. 3 is a schematic side cross-sectional view of the connection sleeve of the present utility model.
1. A screw shaft A; 2. a screw shaft B; 3. a screw rod sliding sleeve A; 4. a screw rod sliding sleeve B; 5. connecting sleeves; 6. positioning a bolt; 7. extruding the bolt; 8. positioning a thread groove; 9. extruding the thread groove; 10. and (5) a connector.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a take two-way ball screw of location bolt, including screw shaft A1 and screw shaft B2, be provided with screw sliding sleeve A3 on the screw shaft A1, be provided with screw sliding sleeve B4 on the screw shaft B2, screw shaft A1 and screw shaft B2 are located same horizontal axis, be provided with adapter sleeve 5 between screw shaft A1 and the screw shaft B2, the one end of screw shaft A1 and the one end of screw shaft B2 extend to inboard from adapter sleeve 5's both ends respectively, adapter sleeve 5's both ends equi-angle respectively are provided with a plurality of positioning thread groove 8, the inboard spin of every positioning thread groove 8 is provided with location bolt 6, the inboard one end of location bolt 6 extends to adapter sleeve 5's inboard, and location bolt 6 supports tightly with screw gap bottom surface and screw gap side on screw shaft A1 and screw gap side on the screw shaft B2 respectively, in order to play the effect to fix a position screw shaft A1 and screw shaft B2 respectively, adapter sleeve 5's outside intermediate head 9, extrusion thread groove 9 spin is provided with extrusion inboard 7, and extrusion bolt 7's both ends are equi-angle respectively, and install in the adapter sleeve 10 and the screw shaft A2 and the corresponding one end of screw shaft A1 and the corresponding to the screw shaft B2, the end of this screw shaft B1 is the side 10, the end of the side is the connector is for the side that the side of the installation is easy to be 10, the side is with the end of the screw shaft 2, the connector is easy to be installed to the side, the end of the screw shaft is 10, the end of the connector is easy to be installed with the side, the end of the connector is 10, the side is easy to be the side, and the connector is the side is the connector is 10 with the side.
In this embodiment, preferably, the rotation direction of the screw thread on the screw shaft A1 and the rotation direction of the screw thread on the screw shaft B2 are opposite to each other, so as to realize synchronous approaching movement and separating movement; in this embodiment, preferably, the inner ends of the positioning bolt 6 and the extrusion bolt 7 are provided with tapered guide heads, so as to facilitate the introduction, and the tops of the positioning bolt 6 and the extrusion bolt 7 are provided with polygonal pulling grooves, so as to facilitate the pulling of the positioning bolt 6 and the extrusion bolt 7 by a tool; in this embodiment, preferably, the inner diameter of the connecting sleeve 5 is matched with the diameters of the screw shaft A1 and the screw shaft B2, the extrusion bolts 7 are distributed on the connecting sleeve 5 in a central symmetry manner, and after the extrusion bolts 7 extend to the connecting sleeve 5 for convenience, the screw shaft A1 and the screw shaft B2 are pushed outwards by extrusion at the same time, so that transverse gaps between the positioning bolt 6 and the corresponding screw shaft A1 and screw shaft B2 are eliminated, and the screw shaft A1 and screw shaft B2 are connected with the connecting sleeve 5 more tightly.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a take two-way ball screw of location bolt, includes screw shaft A (1) and screw shaft B (2), its characterized in that: the screw rod is characterized in that a screw rod sliding sleeve A (3) is arranged on the screw rod shaft A (1), a screw rod sliding sleeve B (4) is arranged on the screw rod shaft B (2), the screw rod shaft A (1) and the screw rod shaft B (2) are positioned on the same horizontal axis, a connecting sleeve (5) is arranged between the screw rod shaft A (1) and the screw rod shaft B (2), one end of the screw rod shaft A (1) and one end of the screw rod shaft B (2) respectively extend from two ends of the connecting sleeve (5) to the inner side, a plurality of positioning thread grooves (8) are respectively arranged at the two ends of the connecting sleeve (5) at equal angles, a positioning bolt (6) is screwed on the inner side of each positioning thread groove (8), one end of the inner side of the positioning bolt (6) extends to the inner side of the connecting sleeve (5), the positioning bolt (6) is respectively abutted against the thread gap bottom surface and the thread gap side on the screw rod shaft A (1) and the thread gap side, an extrusion thread groove (9) is arranged in the middle of the outer side of the connecting sleeve (5), the extrusion bolt (7) is screwed on the inner side of the screw rod shaft A (2), and one end of the inner side of the extrusion bolt (7) is propped against the end parts of the screw rod shaft A (1) and the screw rod shaft B (2) at the same time.
2. A bi-directional ball screw with a locating pin according to claim 1, wherein: the screw rod is characterized in that connectors (10) are arranged at one end of the outer side of each of the screw rod shaft A (1) and the screw rod shaft B (2), the connectors (10) and the corresponding screw rod shafts A (1) are of an integrated structure, and the screw rod shafts B (2) and the corresponding connectors (10) are of an integrated structure.
3. A bi-directional ball screw with a locating pin according to claim 1, wherein: the screw thread rotation direction on the screw rod shaft A (1) and the screw thread rotation direction on the screw rod shaft B (2) are opposite to each other.
4. A bi-directional ball screw with a locating pin according to claim 1, wherein: the inner side one ends of the positioning bolt (6) and the extrusion bolt (7) are respectively provided with a conical guide head, and the tops of the positioning bolt (6) and the extrusion bolt (7) are respectively provided with polygonal pulling grooves.
5. A bi-directional ball screw with a locating pin according to claim 1, wherein: the inner diameter of the connecting sleeve (5) is matched with the diameters of the screw rod shaft A (1) and the screw rod shaft B (2), and the extrusion bolts (7) are distributed on the connecting sleeve (5) in a central symmetry mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321212398.6U CN219866120U (en) | 2023-05-18 | 2023-05-18 | Bidirectional ball screw with positioning bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321212398.6U CN219866120U (en) | 2023-05-18 | 2023-05-18 | Bidirectional ball screw with positioning bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866120U true CN219866120U (en) | 2023-10-20 |
Family
ID=88316431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321212398.6U Active CN219866120U (en) | 2023-05-18 | 2023-05-18 | Bidirectional ball screw with positioning bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866120U (en) |
-
2023
- 2023-05-18 CN CN202321212398.6U patent/CN219866120U/en active Active
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