CN103433843A - Rotating shaft clamping device - Google Patents
Rotating shaft clamping device Download PDFInfo
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- CN103433843A CN103433843A CN2013103780405A CN201310378040A CN103433843A CN 103433843 A CN103433843 A CN 103433843A CN 2013103780405 A CN2013103780405 A CN 2013103780405A CN 201310378040 A CN201310378040 A CN 201310378040A CN 103433843 A CN103433843 A CN 103433843A
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- concave surface
- rotating shaft
- semi arch
- upper grip
- lower chuck
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Abstract
The invention discloses a rotating shaft clamping device which comprises a support, a sliding way and a fixing mechanism. The sliding way is installed on the support, the fixing mechanism comprises an upper clamping head and a lower clamping head, the upper clamping head is arranged on the sliding way in a sliding mode, a semicircle concave surface A is arranged on the upper clamping head, a semicircle concave surface B is arranged on the lower clamping head, a circular cavity is formed by the semicircle concave surface A and the semicircle concave surface B, the upper clamping head is connected with the lower clamping head through bolts, and anti-sliding patterns are arranged on the inner surface of the semicircle concave surface A and the inner surface of the semicircle concave surface B. After a rotating shaft is fixed in a manual mode, a contact part of the circular cavity and the end portion of the rotating shaft has the relative movement trend when polishing is started, the anti-sliding patterns are arranged on the inner surface of the semicircle concave surface A and the inner surface of the semicircle concave surface B, therefore, the friction force between the circular cavity and the end portion of the rotating shaft can be increased, sliding or followed rotating of the rotating shaft in the circular cavity is avoided, and the stability of polishing machining is guaranteed.
Description
Technical field
The present invention relates to natural gas compressor, specifically refer to a kind of rotating shaft clamping device.
Background technology
The kind of natural gas compressor is a lot, and comprising piston compressor, the major advantage of piston compressor is: applicable pressure limit is wide, can be used for low pressure (comprising vacuum), middle pressure, high pressure and super-pressure; Efficiency is high, and its efficiency is higher than Rotary Compressor and speed mode compressor, and the adiabatic efficiency of Large-scale Reciprocating Compressor is more than 80%; Adaptability is stronger, and the capacity scope is wider, under less capacity, also can keep higher efficiency, and the impact that capacity is fluctuateed by pressure at expulsion is very little, and gas density is not too remarkable on the impact of compressor performance in addition, therefore the versatility of machine is good.
Most enterprises are in the production process of carrying out natural gas compressor, and the sanding and polishing of rotating shaft mainly relies on manually-operated sander countershaft to carry out grinding process, and meanwhile, under the condition that lacks clamping device, the workman need be fixed it with hand or pin; Minority enterprise adopts clamping device, but in operating process, and usually rotating shaft occurs skidding and the phenomenon of transfer in clamping device, reduces working (machining) efficiency.
Summary of the invention
The invention provides the compressor rotation shaft workpiece polishing mechanism, while solving polishing, the rotating shaft problem of transfer of easily skidding, reach the purpose that improves the rotating shaft grinding efficiency.
Purpose of the present invention reaches by the following technical programs:
The present invention includes support, slideway and fixed mechanism, slideway is rack-mount, described fixed mechanism comprises upper grip and lower chuck, upper grip is slidably arranged on slideway, upper grip is provided with semi arch concave surface A, and lower chuck is provided with semi arch concave surface B, and described semi arch concave surface A and semi arch concave surface B form circular cavity, described upper grip is connected with the lower chuck bolt, and the inner surface of described semi arch concave surface A and semi arch concave surface B is provided with anti-skid design.Usually, in the production of natural gas compressor, the polishing of rotating shaft is directly used the sander sanding and polishing by artificial, but lacking the clamping device countershaft is fixed, and adopts hand or pin countershaft simply to fix more, is easy to occur security incident; The present invention includes two fixed mechanisms, all be arranged on slideway, regulate two distances between fixed mechanism by moving fixing mechanism, the rotating shaft of different length is gripped, circular arc concave surface A and semi arch concave surface B form circular cavity and can pass for the end at rotating shaft two ends; Screw the bolt between upper grip and lower chuck, the end of rotating shaft is clamped in fixed mechanism, in order to manually carry out sanding and polishing, avoid the generation of security incident when using hand or pin countershaft fixedly, also improved grinding efficiency simultaneously; After artificial fixed rotating shaft, while starting to polish, the contact portion of circular cavity and roller end has the trend of relative motion, the anti-skid design that the surface of semi arch concave surface A and semi arch concave surface B is provided with can increase the frictional force between circular cavity and roller end, avoid rotating shaft to skid in circular cavity or transfer, guarantee the stability of polishing processing.
Further, the radius of described semi arch concave surface A and semi arch concave surface B formation circular cavity is 2～5 ㎝.Between upper grip and lower chuck, be bolted, adjusting bolt can make semi arch concave surface A and semi arch concave surface B form the grasping part increase or diminish, and the rotating shaft with this to various models is processed; In general, the end radius of rotating shaft is many more than 2 ㎝, so semi arch concave surface A and semi arch concave surface B form the radius of circular cavity, is 2～5 ㎝, has increased practicality of the present invention.
Further, as preferably, described anti-skid design is the Chevy Trucks.The Chevy Trucks is higher than the inner surface of semi arch concave surface, and decorative pattern is also can remaining silent of opening, can with the end of rotating shaft, fit well, and while guaranteeing polishing, rotating shaft is non-slip.
Further, the bottom of described lower chuck also is symmetrically arranged with two shockproof feets.When artificial countershaft is polished, mutual active force and reaction force can be produced when grinding wheel contacts with rotating shaft, thereby the vibration of fixed mechanism can be caused, also can affect the precision of polishing; The anti-shake feet arranged in the lower chuck bottom can cushion most active force, and the vibrations of fixed mechanism while avoiding polishing guarantee the precision of polishing.
Further, also comprise the annulus pad be arranged between bolt and upper grip.During due to polishing, need the position of countershaft every now and then to be regulated, adjusting to bolt is comparatively frequent, the use meeting causes running or bolt head and screw rod to break away to bolt for a long time, an annulus pad is set between bolt and upper grip, can add being connected between fixing bolt and upper grip, the service life of continuity bolt.
Further, also comprise the elastomeric pad arranged between upper grip and lower chuck.Upper grip and lower chuck can mutually be adjacent to fixedly the time, and the active force that sander produces when contacting with rotating shaft can make upper grip, lower chuck and roller end mutually impact, and countershaft can produce certain damage; But the elastomeric pad countershaft end arranged is protected, reduce the impulsive force of countershaft end, prevent that it is impaired.
Further, as preferably, the material of described upper grip and lower chuck is the KmBT(2 wear-resistant white cast).The KmBT(2 wear-resistant white cast) source of cast iron is wide, cheap, and ironcasting has good castability and can be made into complex parts, and good machinability is arranged, and has wearability in addition and shock absorbing is good, can guarantee the permanent use of upper grip and lower chuck.
The present invention compared with prior art, there is following advantage and beneficial effect:
1, the present invention includes support, slideway and fixed mechanism, slideway is rack-mount, described fixed mechanism comprises upper grip and lower chuck, upper grip is slidably arranged on slideway, upper grip is provided with semi arch concave surface A, and lower chuck is provided with semi arch concave surface B, and described semi arch concave surface A and semi arch concave surface B form circular cavity, described upper grip is connected with the lower chuck bolt, and the inner surface of described semi arch concave surface A and semi arch concave surface B is provided with anti-skid design.After artificial fixed rotating shaft, while starting to polish, the contact portion of circular cavity and roller end has the trend of relative motion, the anti-skid design that the surface of semi arch concave surface A and semi arch concave surface B is provided with can increase the frictional force between circular cavity and roller end, avoid rotating shaft to skid in circular cavity or transfer, guarantee the stability of polishing processing.
2, the present invention also comprises the annulus pad be arranged between bolt and upper grip.During due to polishing, need the position of countershaft every now and then to be regulated, adjusting to bolt is comparatively frequent, the use meeting causes running or bolt head and screw rod to break away to bolt for a long time, an annulus pad is set between bolt and upper grip, can add being connected between fixing bolt and upper grip, the service life of continuity bolt.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is side view of the present invention;
Wherein, the parts title that Reference numeral is corresponding is as follows:
1-upper grip, 2-lower chuck, 3-bolt, 4-annulus pad, 5-elastomeric pad, 6-slideway, 7-support.
The specific embodiment
Embodiment 1
As shown in Figure 1, the present embodiment comprises support 7, slideway 6 and fixed mechanism, slideway 6 is arranged on support 7, described fixed mechanism comprises upper grip 1 and lower chuck 2, and upper grip 1 is slidably arranged on slideway 6, and upper grip 1 is provided with semi arch concave surface A, lower chuck 2 is provided with semi arch concave surface B, semi arch concave surface A and semi arch concave surface B form circular cavity, and upper grip 1 is connected with lower chuck 2 bolts, and the inner surface of described semi arch concave surface A and semi arch concave surface B is provided with anti-skid design.Regulate the bolt 3 between upper grip 1 and lower chuck 2, make the end, two ends of rotating shaft be placed in circular arc concave surface A, regulate distance between the two by two fixed mechanisms on mobile slideway again, can the rotating shaft of different length be gripped, circular arc concave surface A and semi arch concave surface B form circular cavity and can pass for the end at rotating shaft two ends; Screw the bolt 3 between upper grip 1 and lower chuck 2, the end of rotating shaft is clamped in fixed mechanism, in order to manually carry out sanding and polishing; If while carrying out the polishing of diverse location, only need re-adjustments bolt 3, mobile shaft can be polished to the part of sanding and polishing not, avoids in the generation of security incident fixedly time the with hand or pin countershaft, and the while has also been improved grinding efficiency; After artificial fixed rotating shaft, while starting to polish, the contact portion of circular cavity and roller end has the trend of relative motion, the anti-skid design that the surface of semi arch concave surface A and semi arch concave surface B is provided with can increase the frictional force between circular cavity and roller end, avoid rotating shaft to skid in circular cavity or transfer, guarantee the stability of polishing processing.
The radius that semi arch concave surface A and semi arch concave surface B form circular cavity is 2～5 ㎝, between upper grip 1 and lower chuck 2, by bolt 3, be connected, adjusting bolt 3 can make semi arch concave surface A and semi arch concave surface B form the grasping part increase or diminish, and the rotating shaft with this to various models is processed; In general, the end radius of rotating shaft is many more than 2 ㎝, so semi arch concave surface A and semi arch concave surface B form the radius of circular cavity, is 2～5 ㎝, has increased practicality of the present invention.
Embodiment 2
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, also comprises the elastomeric pad 5 arranged between upper grip 1 and lower chuck 2.Upper grip 1 can be adjacent to fixedly the time mutually with lower chuck 2, and the active force that sander produces when contacting with rotating shaft can make upper grip 1, lower chuck 2 mutually impact with roller end, and countershaft can produce certain damage; But the elastomeric pad 5 countershaft ends that arrange are protected, reduce the impulsive force of countershaft end, prevent that it is impaired.
Embodiment 3
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, and the bottom of lower chuck 1 also is symmetrically arranged with two shockproof feets, most active force can be cushioned, and the vibrations of fixed mechanism while avoiding polishing, guarantee the precision of polishing; Be provided with annulus pad 4 between bolt 3 and upper grip 1, during due to polishing, need the position of countershaft every now and then to be regulated, adjusting to bolt 3 is comparatively frequent, the use meeting causes running or bolt 3 heads and screw rod to break away to bolt 3 for a long time, the annulus pad 4 arranged can add being connected between fixing bolt 3 and upper grip 1, continues the service life of bolt 3.
Claims (7)
1. a rotating shaft clamping device, comprise support (7), slideway (6) and fixed mechanism, fixed mechanism is arranged on support (7), it is characterized in that: described fixed mechanism comprises upper grip (1) and lower chuck (2), slideway (6) is arranged on support (7), upper grip (1) is slidably arranged on slideway (6), upper grip (1) is provided with semi arch concave surface A, lower chuck (2) is provided with semi arch concave surface B, described semi arch concave surface A and semi arch concave surface B form circular cavity, described upper grip (1) is connected with lower chuck (2) bolt, the inner surface of described semi arch concave surface A and semi arch concave surface B is provided with anti-skid design.
2. a kind of rotating shaft clamping device according to claim 1 is characterized in that: the radius that described semi arch concave surface A and semi arch concave surface B form circular cavity is 2～5 ㎝.
3. a kind of rotating shaft clamping device according to claim 1 is characterized in that: described anti-skid design is the Chevy Trucks.
4. a kind of rotating shaft clamping device according to claim 1, it is characterized in that: the bottom of described lower chuck (2) also is symmetrically arranged with two shockproof feets.
5. a kind of rotating shaft clamping device according to claim 1, is characterized in that: also comprise the annulus pad (4) be arranged between bolt (3) and upper grip (1).
6. a kind of rotating shaft clamping device according to claim 1, is characterized in that: also comprise the elastomeric pad (5) arranged between upper grip (1) and lower chuck (2).
7. according to the described a kind of rotating shaft clamping device of claim 1～5 any one, it is characterized in that: described upper grip (1) is KmBT with the material of lower chuck (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103780405A CN103433843A (en) | 2013-08-27 | 2013-08-27 | Rotating shaft clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103780405A CN103433843A (en) | 2013-08-27 | 2013-08-27 | Rotating shaft clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103433843A true CN103433843A (en) | 2013-12-11 |
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ID=49687607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103780405A Pending CN103433843A (en) | 2013-08-27 | 2013-08-27 | Rotating shaft clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103433843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801962A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Rod clamping mechanism |
-
2013
- 2013-08-27 CN CN2013103780405A patent/CN103433843A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801962A (en) * | 2014-02-28 | 2014-05-21 | 成都大漠石油机械有限公司 | Rod clamping mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |