CN220890976U - Precise ball screw - Google Patents
Precise ball screw Download PDFInfo
- Publication number
- CN220890976U CN220890976U CN202322947942.8U CN202322947942U CN220890976U CN 220890976 U CN220890976 U CN 220890976U CN 202322947942 U CN202322947942 U CN 202322947942U CN 220890976 U CN220890976 U CN 220890976U
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- Prior art keywords
- screw rod
- rod body
- screw
- column
- block
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- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 230000000670 limiting effect Effects 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 8
- 230000007774 longterm Effects 0.000 description 2
- 241001417527 Pempheridae Species 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model discloses a precise ball screw which comprises a screw rod body and a nut sleeve in the middle of the screw rod body, wherein the nut sleeve is in threaded connection with the screw rod body, the anti-disengaging mechanism is symmetrically arranged on the left side and the right side of the screw rod body, the anti-disengaging mechanism is arranged in the side face of the screw rod body, and a cleaning brush is fixedly connected to the lower end of a mounting column and is attached to the outer surface of the screw rod body. This accurate ball screw drives the reference column through the movable connecting block and stretches out the outside of lead screw body, can play fine limiting displacement to the nut cover, prevent that the nut cover from exceeding the stroke in the removal in-process and leading to producing with the lead screw body between and drop, holistic regulation mode operation is comparatively convenient moreover, combines the outside of installing the drive brush cleaner of post installation at the lead screw body, is convenient for clean the dust in the lead screw body slot, prevents the excessive flexibility that influences the removal between nut cover and the lead screw body of dust.
Description
Technical Field
The utility model relates to the technical field of ball screw shafts, in particular to a precise ball screw shaft.
Background
The ball screw is an ideal product which can convert rotary motion into linear motion or convert linear motion into rotary motion, and is used as a transmission element most commonly used on machinery and precision machinery, and has the characteristics of high precision, reversibility and high efficiency, so that the ball screw is very widely used;
Referring to China patent grant bulletin No. CN219639369U, grant bulletin day 2023.09.05, a high-precision ball screw with a long life surface is disclosed, the scheme can limit the travel of a nut sleeve through the arrangement of a limit component at one end of a ball screw body, the nut sleeve is prevented from sliding beyond the travel, the phenomena of falling balls, damage to circulating parts and the like are avoided, the precision of the ball screw component is ensured, and the service life is prolonged;
however, in the prior art, the nut sleeve is easy to exceed the stroke in the moving process to cause falling off from the screw rod body, dust is easy to accumulate in a groove in the screw rod body in the long-term use process, and the flexibility of the movement between the nut sleeve and the screw rod body is affected, so that the problem exists in the comparison patent listed above;
For this purpose we propose a precision ball screw to solve the above problems.
Disclosure of utility model
The utility model aims to provide a precision ball screw, which solves the problems that in the prior art, a nut sleeve is easy to exceed a stroke in the moving process to cause falling off from a screw rod body, dust is easy to accumulate in a groove in the screw rod body in the long-term use process, and the flexibility of the movement between the nut sleeve and the screw rod body is affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the precise ball screw comprises a screw body and a nut sleeve which is in threaded connection with the middle part of the screw body;
Further comprises:
The anti-falling mechanism is symmetrically arranged at the left side and the right side of the screw rod body, and is arranged in the side surface of the screw rod body;
The cleaning brush is fixedly connected to the lower end of the mounting column, is attached to the outer surface of the screw rod body, and is used for cleaning the groove of the screw rod body.
Preferably, the anti-disengaging mechanism comprises a movable connecting block for adjusting, a fixed block attached to one side, close to the vertical central axis of the screw rod body, of the movable connecting block, an auxiliary block for connecting, a positioning column with a limiting function and a spring sleeved on the outer surface of the positioning column.
Preferably, the side surface of the movable connecting block is matched with the side surface of the fixed block, the side surface of the fixed block is fixedly connected with the auxiliary block, and the fixed block drives the auxiliary block to form a sliding structure with the screw rod body.
Preferably, the fixed block is fixedly connected with the positioning column, the positioning column is connected with the screw rod body in a penetrating manner, and the fixed block drives the positioning column and the screw rod body to form a telescopic structure.
Preferably, the movable connecting block is connected with the fixed column through a clamping groove, the fixed column is fixedly connected in the screw rod body, and the support column is fixedly connected in the screw rod body.
Preferably, the middle part threaded connection of support column has the connecting bolt, and constitutes revolution mechanic between connecting bolt and the movable connecting block to the connecting bolt is kept away from the perpendicular axis of lead screw body one side fixedly connected with connection handle.
Preferably, the mounting column is inserted into the upper end of the nut sleeve, the mounting column is connected with the nut sleeve through a fastening bolt, and the mounting column drives the cleaning brush and the screw rod body to form a dismounting structure.
Compared with the prior art, the utility model has the beneficial effects that: the precise ball screw drives the positioning column to extend out of the outer side of the screw body through the movable connecting block, so that a good limiting effect can be achieved on the nut sleeve, the nut sleeve is prevented from falling off from the screw body due to exceeding of a stroke in a moving process, the integral adjusting mode is convenient to operate, the cleaning brush is driven by the combined mounting column to be mounted on the outer side of the screw body, dust in a groove of the screw body is conveniently cleaned, and the excessive dust is prevented from influencing the moving flexibility between the nut sleeve and the screw body;
1. The anti-falling mechanism is arranged and comprises a movable connecting block, a fixed block, an auxiliary block, a positioning column and a spring, and the positioning column stretches on the screw rod body, so that the nut sleeve is conveniently limited, and falling of the nut sleeve is prevented from exceeding a stroke;
2. the movable connecting block is driven to move in the screw rod body through the connecting bolt, the positioning column is driven to stretch out and draw back, the movable connecting block and the fixed column are combined to slide, and the moving stability of the movable connecting block in the screw rod body is improved;
3. The cleaning device is provided with the mounting column and the cleaning brush, the mounting column drives the cleaning brush to be mounted on the outer side of the screw rod body, dust attached to the groove of the screw rod body can be cleaned through the cleaning brush, and the flexibility of the movement of the nut sleeve is prevented from being influenced by excessive dust.
Drawings
FIG. 1 is a schematic view of the front cut-away structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic view of the overall structure of the movable connecting block, the fixed column, the connecting bolt and the connecting handle according to the present utility model;
FIG. 4 is a schematic view of the overall structure of the connection of the fixing block, the auxiliary block and the positioning column;
Fig. 5 is a schematic view of the overall structure of the attachment of the mounting post and the sweeper brush of the present utility model.
In the figure: 1. a screw rod body; 2. a nut sleeve; 3. an anti-drop mechanism; 4. a movable connecting block; 5. a fixed block; 6. an auxiliary block; 7. positioning columns; 8. a spring; 9. fixing the column; 10. a support column; 11. a connecting bolt; 12. a connecting handle; 13. a mounting column; 14. a cleaning brush; 15. and (5) fastening a bolt.
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. 1-5, the present utility model provides a technical solution: a precise ball screw comprises a screw body 1, a nut sleeve 2, a release preventing mechanism 3, a movable connecting block 4, a fixed block 5, an auxiliary block 6, a positioning column 7, a spring 8, a fixed column 9, a supporting column 10, a connecting bolt 11, a connecting handle 12, a mounting column 13, a cleaning brush 14 and a fastening bolt 15.
When the precision ball screw is used, as shown in fig. 1, 2, 3 and 4, the middle part of the screw body 1 is in threaded connection with a nut sleeve 2, the anti-disengaging mechanism 3 is symmetrically arranged on the left side and the right side of the screw body 1, meanwhile, the anti-disengaging mechanism 3 comprises a movable connecting block 4 for adjustment, a fixed block 5 which is attached to one side of the movable connecting block 4 close to the vertical central axis of the screw body 1, an auxiliary block 6 for connection, a positioning column 7 with a limiting function and a spring 8 which is sleeved on the outer surface of the positioning column 7, and in order to prevent the nut sleeve 2 from falling off from the screw body 1 when exceeding the stroke in the use process, an external clamping block can be stretched into the screw body 1 and clamped in a connecting handle 12 at the same time, and then the connecting handle 12 is driven by a clamping block which is held by a hand and rotated outside to rotate in the screw body 1;
The connecting handle 12 is fixedly connected with the connecting bolt 11, the connecting bolt 11 is driven to rotate at the middle part of the supporting column 10, the connecting bolt 11 is in threaded connection with the supporting column 10, the connecting bolt 11 and the movable connecting block 4 are driven to rotate, so that the movable connecting block 4 is driven to stretch out and draw back in the screw rod body 1, the movable connecting block 4 slides with the fixed column 9, the side surface of the movable connecting block 4 is matched with the side surface of the fixed block 5, the movable connecting block 4 extrudes the fixed block 5, the fixed block 5 drives the auxiliary block 6 to slide with the screw rod body 1, the fixed block 5 moves in the screw rod body 1, the positioning column 7 is driven to slide with the screw rod body 1, the fixed block 5 extrudes the spring 8, the spring 8 is elastically deformed, the positioning column 7 is driven to stretch out of the outer side of the screw rod body 1, the nut sleeve 2 can be limited through the positioning column 7, the nut sleeve 2 is prevented from falling out of the stroke and the screw rod body 1 in the moving process, the parts are prevented from being damaged, and the whole using precision is ensured;
In addition, as shown in fig. 1 and 5, after the use, the mounting post 13 can be inserted into the upper end of the nut sleeve 2, the mounting post 13 drives the cleaning brush 14 to be attached to the outer side of the screw rod body 1, the mounting post 13 and the nut sleeve 2 are fixed through the fastening bolt 15, the cleaning brush 14 is arranged to be combined with the nut sleeve 2 and the screw rod body 1 to move, the cleaning brush 14 cleans the inside of a groove in the outer side of the screw rod body 1, a good dust removing effect is achieved, and the connection and movement flexibility between the nut sleeve 2 and the screw rod body 1 due to excessive dust is prevented.
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 (7)
1. The precise ball screw comprises a screw body (1) and a nut sleeve (2) which is in threaded connection with the middle part of the screw body (1);
Characterized by further comprising:
The anti-falling mechanism (3) is symmetrically arranged at the left side and the right side of the screw rod body (1), and the anti-falling mechanism (3) is arranged in the side surface of the screw rod body (1);
The cleaning brush (14), cleaning brush (14) fixed connection is in the lower extreme of erection column (13), and cleaning brush (14) laminating sets up the surface at lead screw body (1) to cleaning brush (14) are used for cleaning the slot of lead screw body (1).
2. The precision ball screw as claimed in claim 1, wherein: the anti-drop mechanism (3) comprises a movable connecting block (4) for adjusting, a fixed block (5) attached to one side, close to the vertical central axis of the screw rod body (1), of the movable connecting block (4), an auxiliary block (6) for connecting, a positioning column (7) with a limiting effect and a spring (8) sleeved on the outer surface of the positioning column (7).
3. A precision ball screw as defined in claim 2, wherein: the side of the movable connecting block (4) is matched with the side of the fixed block (5), the side of the fixed block (5) is fixedly connected with the auxiliary block (6), and the fixed block (5) drives the auxiliary block (6) to form a sliding structure with the screw rod body (1).
4. A precision ball screw as claimed in claim 3, wherein: the fixing block (5) is fixedly connected with the positioning column (7), the positioning column (7) is connected with the screw rod body (1) in a penetrating mode, and the fixing block (5) drives the positioning column (7) to form a telescopic structure with the screw rod body (1).
5. A precision ball screw as claimed in claim 3, wherein: the movable connecting block (4) is connected with the fixed column (9) through a clamping groove, the fixed column (9) is fixedly connected to the inside of the screw rod body (1), and the support column (10) is fixedly connected to the inside of the screw rod body (1).
6. The precision ball screw as in claim 5, wherein: the middle part threaded connection of support column (10) has connecting bolt (11), and constitutes revolution mechanic between connecting bolt (11) and movable connecting block (4), and connecting bolt (11) are kept away from one side of the perpendicular axis of lead screw body (1) fixedly connected with connecting handle (12).
7. The precision ball screw as claimed in claim 1, wherein: the mounting column (13) is inserted into the upper end of the nut sleeve (2), the mounting column (13) is connected with the nut sleeve (2) through the fastening bolt (15), and the mounting column (13) drives the cleaning brush (14) to form a dismounting structure with the screw rod body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322947942.8U CN220890976U (en) | 2023-11-01 | 2023-11-01 | Precise ball screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322947942.8U CN220890976U (en) | 2023-11-01 | 2023-11-01 | Precise ball screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220890976U true CN220890976U (en) | 2024-05-03 |
Family
ID=90866797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322947942.8U Active CN220890976U (en) | 2023-11-01 | 2023-11-01 | Precise ball screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220890976U (en) |
-
2023
- 2023-11-01 CN CN202322947942.8U patent/CN220890976U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |