CN203141171U - Clamping sleeve for cutting off bolt - Google Patents
Clamping sleeve for cutting off bolt Download PDFInfo
- Publication number
- CN203141171U CN203141171U CN 201320183886 CN201320183886U CN203141171U CN 203141171 U CN203141171 U CN 203141171U CN 201320183886 CN201320183886 CN 201320183886 CN 201320183886 U CN201320183886 U CN 201320183886U CN 203141171 U CN203141171 U CN 203141171U
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- CN
- China
- Prior art keywords
- bolt
- jacket wall
- sleeve wall
- sleeve
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a clamping sleeve for cutting off a bolt. The problems that when an existing bolt is cut off, efficiency is low, quality is poor, and safety is low are solved. The clamping sleeve for cutting off the bolt comprises a first sleeve wall and a second sleeve wall, the cross section of the first sleeve wall and the cross section of the second sleeve wall are of a circular arc shape, and the clamping face of the first sleeve wall and the clamping face of the second sleeve wall are both matched with the screw rod surface of a clamped bolt. A gap is reserved between the first sleeve wall and the second sleeve wall, and the overall outer diameter of the first sleeve wall and the overall outer diameter of the second sleeve wall are larger than the diameter of the head of the clamped bolt to guarantee clamping to be convenient. The length of the first sleeve wall and the length of the second sleeve wall are equal, and the length of the first sleeve wall and the length of the second sleeve wall are both 1/2 to 2/3 of the length of a screw rod of the clamped bolt to guarantee clamping force. The clamping sleeve for cutting off the bolt is concise in design, simple in structure, easy to manufacture and capable of being manufactured to be series tools. The advantages of being high in efficiency, good in quality, high in processing precision and the like are achieved when the clamping sleeve is used for manufacturing the bolt, unsafe factors existing in bolt cutting off are removed completely, threads of the bolt can not be damaged, and the clamping sleeve is worthy of popularization and application.
Description
Technical field
The present invention relates to a kind of clamping device, specifically is a kind of retaining sleeve that blocks for bolt.
Background technology
The long situation that does not meet the standardized requirement of coal mine equipment and need block of bolt when in equipment repair, often meeting assembling, and under a lot of situations, the diameter of bolt that need block is little, length short, remove length less than 5mm, if adopt the mode of manual sawing, the then efficient end, ropy shortcoming, so taking the way of machined into raises labour efficiency, but there is following problem in the machine tooling meeting: 1, if the bolt extension elongation is longer when being installed bolt head, and the situation that bolt flies out and hurts sb.'s feelings when cutting occurring easily; 2, if be installed the bolt thread place, be longer than bolt length because of claw length, then bolt just can't block and may damage screw thread.
Summary of the invention
The purpose of this utility model is in order to solve above-mentioned problems of the prior art, and a kind of retaining sleeve that blocks for bolt is provided, and is particularly suitable for the diameter of bolt, reach, blocks the retaining sleeve that uses under the less situation of length.
The utility model is achieved through the following technical solutions:
A kind of retaining sleeve that blocks for bolt, comprise that cross section is first jacket wall of circular arc and second jacket wall that cross section is circular arc, the clamping face of the clamping face of described first jacket wall and second jacket wall all matches (bolt is made up of screw rod and head) with the screw surface that is held bolt; When first jacket wall and second jacket wall clamp the screw rod that is held bolt, leave gap (namely leaving the gap between the axial end of the axial end of first jacket wall and second jacket wall) between first jacket wall and second jacket wall, and the external diameter of first jacket wall and the second jacket wall integral body is greater than the head diameter that is held bolt, to guarantee to be installed conveniently; The equal in length of first jacket wall and second jacket wall and its length all be held bolt spiro rod length 1/2 to 2/3, to guarantee chucking power.
When processing bolt, make jacket wall and second jacket wall alignment of winning clamp the screw rod of bolt, the part that needs on the screw rod to block is stretched out the openend of the retaining sleeve of being formed by first jacket wall and second jacket wall, to guarantee processing length, then with hand with the retaining sleeve clamping and put in the claw of lathe, last fastening claw has been processed to fix can block behind retaining sleeve and the bolt.Because the external diameter of first jacket wall and the second jacket wall integral body, has shortened the time of claw fixing retaining sleeve greater than the head diameter that is held bolt, has guaranteed production safety.
Further, the same side end of described first jacket wall and second jacket wall all is provided with positioning step.When retaining sleeve was fixed in the claw of lathe, positioning step can play the effect of positioning clamping cover, the security when guaranteeing processing bolt.
First jacket wall and second jacket wall of forming retaining sleeve all are made by carbon structural steel Q235 material, and its combination property is better, and its intensity, plasticity, toughness are better, in the time of can reducing grip bolt to the damage of its screw thread.
The design of the utility model device is succinct, simple in structure, making is easy, have efficient height, good, the machining accuracy advantages of higher of quality when using this retaining sleeve processing bolt, thoroughly solved the unsafe factor that exists when blocking bolt, and can not damage the screw thread of bolt, be worth of widely use.
Description of drawings
Fig. 1 is perspective view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the upward view of Fig. 1.
Fig. 5 uses schematic diagram for the utility model.
Fig. 6 is the A-A cutaway view among Fig. 5.
Among the figure: 1-first jacket wall, 2-second jacket wall, 3-gap, 4-screw rod, 5-head, 6-positioning step.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done to describe further:
As shown in Figure 1, 2, 3, a kind of retaining sleeve that blocks for bolt, comprise that cross section is first jacket wall 1 of circular arc and second jacket wall 2 that cross section is circular arc, the clamping face of the clamping face of described first jacket wall 1 and second jacket wall 2 all matches with screw rod 4 surfaces that are held bolt; When first jacket wall 1 and second jacket wall 2 clamp the screw rod 4 that is held bolt, leave gap 3 between first jacket wall 1 and second jacket wall 2, and the external diameter of first jacket wall 1 and second jacket wall, 2 integral body is greater than head 5 diameters that are held bolt; The equal in length of first jacket wall 1 and second jacket wall 2 and its length all be held bolt screw rod 4 length 1/2 to 2/3.
During concrete enforcement, the same side end of first jacket wall 1 and second jacket wall 2 all is provided with positioning step 6.First jacket wall 1 and second jacket wall 2 adopt the Q235 material to be made.
Claims (3)
1. one kind is used for the retaining sleeve that bolt blocks, it is characterized in that: comprise that cross section is first jacket wall (1) of circular arc and second jacket wall (2) that cross section is circular arc, the clamping face of the clamping face of described first jacket wall (1) and second jacket wall (2) all matches with the screw rod that is held bolt (4) surface; When first jacket wall (1) and second jacket wall (2) clamp the screw rod (4) that is held bolt, leave gap (3) between first jacket wall (1) and second jacket wall (2), and the external diameter of first jacket wall (1) and second jacket wall (2) integral body is greater than the head that is held bolt (5) diameter; The equal in length of first jacket wall (1) and second jacket wall (2) and its length all are 1/2 to 2/3 of screw rod (4) length that is held bolt.
2. the retaining sleeve that blocks for bolt according to claim 1, it is characterized in that: the same side end of first jacket wall (1) and second jacket wall (2) all is provided with positioning step (6).
3. the retaining sleeve that blocks for bolt according to claim 1 and 2, it is characterized in that: first jacket wall (1) and second jacket wall (2) all are made by the Q235 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183886 CN203141171U (en) | 2013-04-13 | 2013-04-13 | Clamping sleeve for cutting off bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183886 CN203141171U (en) | 2013-04-13 | 2013-04-13 | Clamping sleeve for cutting off bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141171U true CN203141171U (en) | 2013-08-21 |
Family
ID=48968726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320183886 Expired - Lifetime CN203141171U (en) | 2013-04-13 | 2013-04-13 | Clamping sleeve for cutting off bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203141171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296406A (en) * | 2019-08-02 | 2021-02-02 | 中国航天标准化研究所 | Bolt preprocessor |
-
2013
- 2013-04-13 CN CN 201320183886 patent/CN203141171U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296406A (en) * | 2019-08-02 | 2021-02-02 | 中国航天标准化研究所 | Bolt preprocessor |
| CN112296406B (en) * | 2019-08-02 | 2022-07-29 | 中国航天标准化研究所 | Bolt preprocessor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |