CN211444570U - Tensioning shaft capable of moving concentrically - Google Patents
Tensioning shaft capable of moving concentrically Download PDFInfo
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- CN211444570U CN211444570U CN201922236611.7U CN201922236611U CN211444570U CN 211444570 U CN211444570 U CN 211444570U CN 201922236611 U CN201922236611 U CN 201922236611U CN 211444570 U CN211444570 U CN 211444570U
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Abstract
The utility model discloses a concentric tension shaft who removes, which comprises a main shaft, the outside both sides of main shaft are equipped with first spiral subassembly and second spiral subassembly respectively, just first spiral subassembly and second spiral subassembly all with main shaft threaded connection, the outside of first spiral subassembly and second spiral subassembly all is equipped with the protection casing, bottom one side of first spiral subassembly and second spiral subassembly all is equipped with the driving gear, just first spiral subassembly and second spiral subassembly all mesh with the driving gear, the driving gear sets up to two. The utility model discloses a drive two driving gears clockwise rotation, first spiral subassembly and second spiral subassembly promote two sliding rings to draw close each other in step this moment, and the support arm passes through the bull stick and moves about respectively between sliding ring and bracing piece, and the bracing piece is kept away from each other, makes the tight axle inflation that rises, drives two driving gear anticlockwise rotations, makes the tight axle that rises tighten up, and the concentricity of this tight axle that rises is high, the operation of being convenient for.
Description
Technical Field
The utility model relates to a machine part field, concretely relates to concentric removal rises and tightly axle.
Background
The tensioning shaft is an accessory used by machining equipment, and is used for accurately positioning the reel material so as to facilitate further processing of the reel material;
the prior art has the following defects: the distance between the left support arm and the right support arm of the traditional tensioning shaft is large, and the operation force is difficult to keep consistent, so that the concentricity of the left support arm and the right support arm is inconsistent, and the operation and the use are inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a concentric tight axle that rises who removes, through driving two driving gear clockwise rotation, first spiral subassembly and second spiral subassembly promote two sliding rings and draw close each other in step this moment, and the support arm passes through the bull stick and moves about between sliding ring and bracing piece respectively, and the bracing piece is kept away from each other, makes the tight axle inflation that rises, drives two driving gear anticlockwise rotations, makes the tight axle that rises tighten up, and this tight axle that rises's concentricity is high, the operation of being convenient for to solve the above-mentioned weak point in the technique.
In order to achieve the above object, the present invention provides the following technical solutions: a tensioning shaft moving concentrically comprises a main shaft, wherein a first spiral assembly and a second spiral assembly are respectively arranged on two sides of the outer portion of the main shaft, the first spiral assembly and the second spiral assembly are in threaded connection with the main shaft, protective covers are arranged on the outer sides of the first spiral assembly and the second spiral assembly, driving gears are arranged on one sides of the bottoms of the first spiral assembly and the second spiral assembly, the first spiral assembly and the second spiral assembly are meshed with the driving gears, the number of the driving gears is two, and a hexagonal shaft is arranged between the two driving gears;
two the close one side of first spiral subassembly and second spiral subassembly all is equipped with the sliding ring, the outside of sliding ring is equipped with the bracing piece, just the bracing piece sets up to four, two the outside of sliding ring all is equipped with the support arm, just the sliding ring passes through support arm swing joint with the bracing piece.
Preferably, the spindle is of hollow-cylindrical design.
Preferably, the inner sides of the first screw assembly and the second screw assembly are both provided with threads, and the threads on the inner side of the first screw assembly are opposite to the threads on the inner side of the second screw assembly.
Preferably, the outer sides of the first spiral assembly and the second spiral assembly are both provided with a toothed pin, and the toothed pins on the outer sides of the first spiral assembly and the second spiral assembly are meshed with the driving gear.
Preferably, the hexagonal shaft penetrates through the two driving gears, and the hexagonal shaft is in interference fit with the inner walls of the penetrating positions of the two driving gears.
Preferably, two the outside of driving gear all is equipped with the gear cover, and two the gear cover is the integral type structural design with two protection casings respectively.
Preferably, the two ends of the supporting arm are provided with rotating rods, the supporting arms are arranged in a plurality of numbers, and the supporting arms are respectively movably connected with the sliding ring and the supporting rod through the rotating rods.
Preferably, the two ends of the main shaft are both provided with connecting rods, the connecting rods are in a quadrangular prism design, the connecting rods are connected with the main shaft in an inserting mode, and the outer sides of the connecting rods are both provided with bearings.
In the technical scheme, the utility model provides a technological effect and advantage:
through driving two driving gears clockwise turning, first spiral assembly and second spiral assembly promote two sliding rings to draw close each other in step this moment, and the support arm passes through the bull stick and moves about respectively between sliding ring and bracing piece, and the bracing piece is kept away from each other, makes the tight axle inflation that rises, drives two driving gears anticlockwise rotation, makes the tight axle that rises tighten up, compares with the tight axle that rises that current concentricity is low, and this tight axle that rises's concentricity is high, the operation of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a left side longitudinal sectional view of the present invention.
Fig. 3 is a longitudinal sectional view of the present invention.
Fig. 4 is a front view of the present invention.
Description of reference numerals:
1. a main shaft; 2. a protective cover; 3. a first screw assembly; 4. a second screw assembly; 5. a driving gear; 6. a hexagonal shaft; 7. a gear cover; 8. a slip ring; 9. a support bar; 10. a support arm; 11. a rotating rod; 12. a connecting rod; 13. and a bearing.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides a concentric movement tensioning shaft as shown in figures 1-4, which comprises a main shaft 1, wherein a first spiral component 3 and a second spiral component 4 are respectively arranged at two sides of the outer part of the main shaft 1, the first spiral component 3 and the second spiral component 4 are both in threaded connection with the main shaft 1, a protective cover 2 is arranged at the outer sides of the first spiral component 3 and the second spiral component 4, a driving gear 5 is arranged at one side of the bottom of the first spiral component 3 and the second spiral component 4, the first spiral component 3 and the second spiral component 4 are both meshed with the driving gear 5, the number of the driving gears 5 is two, and a hexagonal shaft 6 is arranged between the two driving gears 5;
a sliding ring 8 is arranged on one side, close to the first spiral component 3, of the second spiral component 4, supporting rods 9 are arranged on the outer side of each sliding ring 8, the number of the supporting rods 9 is four, supporting arms 10 are arranged on the outer sides of the two sliding rings 8, and the sliding rings 8 are movably connected with the supporting rods 9 through the supporting arms 10;
further, in the above embodiment, the main shaft 1 is designed as a hollow cylinder, which is convenient for installing a connector;
further, in the above embodiment, the inner sides of the first screw assembly 3 and the second screw assembly 4 are both provided with threads, and the direction of the threads inside the first screw assembly 3 is opposite to the direction of the threads inside the second screw assembly 4, so that the first screw assembly 3 and the second screw assembly 4 can move relatively on the main shaft 1 when rotating;
further, in the above embodiment, the outside of the first spiral assembly 3 and the second spiral assembly 4 is provided with a toothed pin, and the toothed pins outside the first spiral assembly 3 and the second spiral assembly 4 are engaged with the driving gear 5, so that the driving gear 5 is provided to drive the first spiral assembly 3 and the second spiral assembly 4 to rotate;
further, in the above embodiment, the hexagonal shaft 6 penetrates through the two driving gears 5, and the hexagonal shaft 6 is in interference fit with the inner walls of the penetrating positions of the two driving gears 5, and the driving gears 5 are driven to rotate by the arranged hexagonal shaft 6;
further, in the above embodiment, gear covers 7 are respectively disposed on the outer sides of the two driving gears 5, and the two gear covers 7 and the two protective covers 2 are designed to be an integrated structure, and the driving gears 5 are subjected to protection treatment through the gear covers 7;
further, in the above embodiment, two ends of the supporting arm 10 are respectively provided with a rotating rod 11, and the supporting arms 10 are provided in plurality, the supporting arms 10 are respectively movably connected with the sliding ring 8 and the supporting rod 9 through the rotating rods 11, and the movement of the supporting arms 10 is facilitated through the provided rotating rods 11;
further, in the above embodiment, two ends of the main shaft 1 are both provided with a connecting rod 12, the connecting rods 12 are designed in a quadrangular prism shape, and both the two connecting rods 12 are inserted into the main shaft 1, and the outer sides of both the two connecting rods 12 are provided with bearings 13, so that the main shaft 1 can be conveniently mounted through the provided connecting rods 12;
the implementation mode is specifically as follows: the main shaft 1 is assembled with a machining device through a bearing 13 and a connecting rod 12, a hexagonal shaft 6 is connected with a transmission part of the machining device, when the distance between four support rods 9 needs to be enlarged, the transmission part of the machining device drives two driving gears 5 to rotate clockwise through the hexagonal shaft 6, the two driving gears 5 respectively drive a first spiral component 3 and a second spiral component 4 to rotate anticlockwise, because the direction of the inner side thread of the first spiral component 3 is opposite to that of the inner side thread of the second spiral component 4, the first spiral component 3 and the second spiral component 4 push two sliding rings 8 to be synchronously close to each other, when the two sliding rings 8 are close to each other, a support arm 10 respectively moves between the sliding rings 8 and the support rods 9 through a rotating rod 11, the support rods 9 are far away from each other, the tensioning shaft is expanded, the transmission part of the machining device drives the two driving gears 5 to rotate anticlockwise through the hexagonal, then the tight axle that rises tightens up, the concentricity of tight axle that rises is high, the operation of being convenient for, and this embodiment has specifically solved among the prior art tight axle concentricity and has low, the problem of the operation of being not convenient for.
This practical theory of operation: two driving gears 5 of drive rotate clockwise, two driving gears 5 drive first spiral subassembly 3 and 4 anticlockwise rotations of second spiral subassembly respectively, first spiral subassembly 3 and second spiral subassembly 4 promote two sliding rings 8 and draw close each other in step this moment, when two sliding rings 8 draw close each other, support arm 10 passes through bull stick 11 and moves between sliding ring 8 and bracing piece 9 respectively, make bracing piece 9 keep away from each other, make the expansion shaft inflation, two driving gears 5 anticlockwise rotations of the drive unit of machining equipment through hexagonal axle 6 drive, make the expansion shaft tighten up.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides a concentric movement's tight axle that rises, includes main shaft (1), its characterized in that: a first spiral assembly (3) and a second spiral assembly (4) are respectively arranged on two sides of the outer portion of the main shaft (1), the first spiral assembly (3) and the second spiral assembly (4) are in threaded connection with the main shaft (1), protective covers (2) are respectively arranged on the outer sides of the first spiral assembly (3) and the second spiral assembly (4), driving gears (5) are respectively arranged on one sides of the bottoms of the first spiral assembly (3) and the second spiral assembly (4), the first spiral assembly (3) and the second spiral assembly (4) are respectively meshed with the driving gears (5), the number of the driving gears (5) is two, and a hexagonal shaft (6) is arranged between the two driving gears (5);
two close one side of first spiral subassembly (3) and second spiral subassembly (4) all is equipped with sliding ring (8), the outside of sliding ring (8) is equipped with bracing piece (9), just bracing piece (9) set up to four, two the outside of sliding ring (8) all is equipped with support arm (10), just sliding ring (8) pass through support arm (10) swing joint with bracing piece (9).
2. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the main shaft (1) is designed to be a hollow cylinder.
3. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the inner sides of the first spiral component (3) and the second spiral component (4) are both provided with threads, and the direction of the threads on the inner side of the first spiral component (3) is opposite to that of the threads on the inner side of the second spiral component (4).
4. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the outer sides of the first spiral assembly (3) and the second spiral assembly (4) are both provided with a toothed pin, and the toothed pins on the outer sides of the first spiral assembly (3) and the second spiral assembly (4) are meshed with the driving gear (5).
5. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the hexagonal shaft (6) penetrates through the two driving gears (5), and the hexagonal shaft (6) is in interference fit with the inner walls of the penetrating positions of the two driving gears (5).
6. The concentrically movable tensioner shaft as claimed in claim 1, wherein: two the outside of driving gear (5) all is equipped with gear cover (7), and two gear cover (7) are the integral type structural design with two protection casings (2) respectively.
7. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the two ends of the supporting arm (10) are provided with rotating rods (11), the supporting arm (10) is arranged to be multiple, and the supporting arm (10) is movably connected with the sliding ring (8) and the supporting rod (9) through the rotating rods (11).
8. The concentrically movable tensioner shaft as claimed in claim 1, wherein: the two ends of the main shaft (1) are provided with connecting rods (12), the connecting rods (12) are designed in a quadrangular shape, the connecting rods (12) are connected with the main shaft (1) in an inserting mode, and the outer sides of the connecting rods (12) are provided with bearings (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236611.7U CN211444570U (en) | 2019-12-13 | 2019-12-13 | Tensioning shaft capable of moving concentrically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236611.7U CN211444570U (en) | 2019-12-13 | 2019-12-13 | Tensioning shaft capable of moving concentrically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211444570U true CN211444570U (en) | 2020-09-08 |
Family
ID=72304718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922236611.7U Active CN211444570U (en) | 2019-12-13 | 2019-12-13 | Tensioning shaft capable of moving concentrically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211444570U (en) |
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2019
- 2019-12-13 CN CN201922236611.7U patent/CN211444570U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 362200 No. 252, south section of Century Avenue, Ximen village, Anhai Town, Jinjiang City, Quanzhou City, Fujian Province Patentee after: Jinjiang Yiyue Machinery Technology Co.,Ltd. Address before: 362200 No.40, Huchi Sanli, Ximen village, Anhai Town, Jinjiang City, Quanzhou City, Fujian Province Patentee before: Jinjiang Yiyue Machinery Technology Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |