CN204664130U - The linkage structure of crosshead, crosshead and shank and slidercrank mechanism thereof - Google Patents
The linkage structure of crosshead, crosshead and shank and slidercrank mechanism thereof Download PDFInfo
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- CN204664130U CN204664130U CN201520169322.9U CN201520169322U CN204664130U CN 204664130 U CN204664130 U CN 204664130U CN 201520169322 U CN201520169322 U CN 201520169322U CN 204664130 U CN204664130 U CN 204664130U
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- shank
- crosshead
- tapering
- linkage structure
- tapering ring
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Abstract
The utility model discloses linkage structure and the slidercrank mechanism thereof of a kind of crosshead, crosshead and shank, belong to mechanical connecting structure technical field; Described crosshead comprises body, the two side of body offers the tapered structure mounting hole installed for shank, and the miner diameter end of two tapered structure mounting holes is all inside body, the linkage structure of described crosshead and shank by being provided with shank in mounting hole, shank two mounting end is assemblied in mounting hole by sheathed tapering ring, and described shank and tapering interannular are also provided with the position fixed structure for fixing shank and tapering ring relative position; The linkage structure of crosshead of the present utility model, crosshead and shank, the convenience of reliability that crosshead is connected with shank and installation can be improved, improve the Security that it runs, and the cut down finished cost maintenance time and maintenance cost that are connected with shank with crosshead.
Description
Technical field
The utility model relates to a kind of mechanical connecting structure, and particularly the linkage structure of a kind of crosshead for piston compressor, crosshead and shank and slidercrank mechanism thereof, belong to mechanical connecting structure technical field.
Background technique
Crosshead is indispensable parts in slidercrank mechanism, and the connection design relation between crosshead and shank is to the convenience of the stability of slidercrank mechanism overall operation, Security, maintenance and low cost.As the significant components of transmission, linkage structure loss in equipment operation of existing crosshead and shank is comparatively serious.
Crosshead and the shank linkage structure of existing slidercrank mechanism generally adopt conventional design, to be designed to example in piston compressor, its structure is as shown in Figure 6: the two side of crosshead is provided with tapered towards consistent tapered attachment hole, shank two ends also adopt the tapered structure matched with corresponding end attachment hole tapering, attachment hole aperture in addition on crosshead one sidewall is generally greater than the attachment hole aperture of another sidewall, so that fix the relative position between shank and crosshead from the attachment hole position of less side.
Above structure Problems existing is:
(1) requirement on machining accuracy of crosshead attachment hole and the tapered part of shank is high, causes accessory cost higher;
(2) due to machining error, the tapered structure at shank two ends and the tapered attachment hole of crosshead both sides are difficult to reach desirable contact simultaneously and mate, this phenomenon to be changed in shank process more very in plant maintenance, often take the way of grinding to repair the tapered portion at shank two ends in order to head it off, but along with the increase of specification of equipment, the diameter of shank also becomes large, make grinding difficulty large, time-consuming, increase service cycle undoubtedly, add maintenance cost, and this maintenance mode also makes maintenance effects undesirable, can hide some dangers for equipment safety operation, running may be caused unstable, bolt fracture, the even equipment accident such as body damage,
(3) in slidercrank mechanism work, because shank loosens the aggravation causing the tapered attachment hole wearing and tearing of crosshead, the aperture of tapered attachment hole is inevitably caused to become large, the shank of standard configuration specification is made not to be arranged in crosshead again, crosshead and shank the whole series must be changed in maintenance, but the wearing and tearing of the curved portion of crosshead are general less, the waste of crosshead and maintenance cost is caused to increase.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned Problems existing, a kind of crosshead is provided, and under this cross head design with the linkage structure of shank, to improve the convenience of reliability that crosshead is connected with shank and installation, reduce maintenance time and maintenance cost that crosshead is connected with shank.
The technical solution adopted in the utility model is as follows:
A kind of crosshead, comprises the body of crosshead, and the two side of body offers the mounting hole installed for shank, two mounting holes are tapered structure, and the miner diameter end of two tapered structure mounting holes is all towards the inner side of body.
Further, the tapering of described two mounting holes is consistent.
Further, the aperture of described two mounting holes is consistent.
Further, described two mounting hole coaxial lines.
The linkage structure of a kind of crosshead of the present utility model and shank, comprise crosshead as above, shank is provided with in the mounting hole of crosshead, described shank two ends are assemblied in mounting hole by sheathed tapering ring, described tapering ring outer diameter face is suitable with corresponding mounting hole aperture surface, tapering ring aperture surface is suitable with corresponding shank mounting end, and described shank and tapering interannular are also provided with the position fixed structure for fixing shank and tapering ring relative position.
Further, described position fixed structure is for connecting pressing plate, and described connection pressing plate is connected with shank by bolt.
Further, described tapering ring offers gap.
Or described tapering ring forms the entirety of annular by least two pieces of tapering ring elements.
Further, described shank is cylindrical structural.
Slidercrank mechanism of the present utility model, adopts crosshead as above, or adopts the linkage structure of crosshead as above and shank.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, crosshead of the present utility model, adopt the miner diameter end of two tapered structure mounting holes all towards the design inside body, be different from existing crosshead two coniform hole tapered towards consistent design, the requirement of existing two coniform hole tapering consistent degree is reduced, reduce processing cost, and lay a good foundation for the linkage structure design of brand-new crosshead and shank;
2, the linkage structure of crosshead of the present utility model and shank, owing to adopting the miner diameter end of two tapered structure mounting holes all towards the design inside body, and by two tapering rings, shank is installed, compare the highi degree of accuracy cooperation that traditional design can realize two tapered structure positions easily, and tapering annulate shaft is relatively flexible to mounting point, the tapering matching degree of traditional crosshead and shank is made to require to reduce, this linkage structure makes the processing need not carrying out taper ends again to shank simultaneously, greatly reduces the processing cost of shank;
3, the linkage structure of crosshead of the present utility model and shank, the maintainability that crosshead is connected with shank improves, and improves maintenance quality, saves maintenance cost, is conducive to the stable of equipment operation;
4, the linkage structure of crosshead of the present utility model and shank, described tapering ring adopts gap or block design, is conducive to the degree of adaptability improving tapering ring and mounting hole, improves the precision safeguarding assembling.
Accompanying drawing explanation
Fig. 1 is cross head design schematic diagram of the present utility model;
Fig. 2 is the linkage structure schematic diagram of crosshead of the present utility model and shank;
Fig. 3 is the A point enlarged diagram in the utility model Fig. 2;
Fig. 4 is a structural representation of the tapering ring of the utility model Fig. 2;
Fig. 5 is another structural representation of the tapering ring of the utility model Fig. 2;
Fig. 6 is the linkage structure schematic diagram of existing cross head design, crosshead and shank.
Mark in figure: 1-body, 2-cavity, 3-mounting hole, 4-shank, 5-tapering ring, 6-connect pressing plate, 7-gap, 8-tapering ring element, the existing crosshead block of 1a-, the existing shank of 2a-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment
Crosshead of the present utility model, its structure as shown in Figure 1, comprise the body 1 of crosshead, cavity 2 is provided with in described body 1, the two side of body 1 offers the mounting hole 3 installed for shank, two mounting holes 3 are tapered structure, and the miner diameter end of two tapered structure mounting holes 3 is all towards the inner side of body 1.
Optimized project as the present embodiment crosshead: further the tapering of described two mounting holes 3 is consistent; The aperture of further two mounting holes 3 is consistent, and described aperture is consistent refers to that the size of bigger diameter end, miner diameter end is equal, and namely the specification of holes is consistent; Further two mounting hole 3 coaxial lines are arranged.
The linkage structure of crosshead of the present utility model and shank, comprise the cross head design that the present embodiment is above-mentioned, shank 4 is provided with in the mounting hole 3 of crosshead, described shank 4 liang of mounting ends are assemblied in mounting hole 3 by sheathed tapering ring 5, the outer diameter face of described tapering ring 5 is suitable with the aperture surface of corresponding mounting hole 3, the aperture surface of tapering ring 5 is suitable with corresponding shank 4 mounting end surface, is also provided with the position fixed structure for fixing shank 4 and tapering ring 5 relative position between described shank 4 and tapering ring 5.
In the present embodiment, two installations of described shank 4 are not limited to concrete structural design, and it can be circular, rectangle, or other any structures being convenient to install with tapering ring 5 also axial adjustment.As preferred technological scheme, described shank 4 is cylindrical structural, namely the two end part of shank 4 and shank 4 stage casing are cylindrical, so that the installation of the processing of shank 4 and shank 4 and tapering ring 5, and the installation and operation that to be circular design be for ensureing connecting rod of shank 4 stage casing.
In the present embodiment, described position fixed structure is the structure that both shank 4 and tapering ring 5 relative position axially or simultaneously axially and in radial direction can be fixed, can for being sheathed on the nut of shank 4 outer end, or be threaded between shank 4 and tapering ring 5, or anyly shank 4 and tapering ring 5 can be carried out relatively-stationary existing structure design, to ensure shank 4, tapering ring 5 can connect for overall structure, tapering ring 5 can coordinate accurately with mounting hole 3, shank 4 and tapering ring 5 is positioned as a whole in crosshead.Described position fixed structure is selected to connect pressing plate 6 in the present embodiment, as shown in Figure 3, the width of described connection pressing plate 6 and the width of tapering ring 5 outboard end match, and connect the height of tapering ring 5 position height higher than shank 4 position of pressing plate 6, so that by connect pressing plate 6 tightly to be pressed together in mounting hole 3 and on shank 4, both are radial and axial on relative position be fixed simultaneously, and connect pressing plate 6 and be connected with shank 4 end by bolt.
Tapering ring 5 is generally designed to the annular design closed, flexibility and the accuracy of coupling are installed in mounting hole 3 to improve tapering ring 5 in the present embodiment, described tapering ring 5 offers gap 7 so that tapering ring 5 and mounting hole 3 matching degree can be regulated by gap 7 flexibly, as shown in Figure 4; This regulative mode can also be made up of the entirety of annular at least two pieces of tapering ring elements 8 scheme tapering ring 5 realizes, as shown in Figure 5.
In the linkage structure of crosshead of the present utility model and crosshead and shank, in order to reach good stressed cooperation intensity and install precision, the taper design scope of mounting hole 3 is 1: 10-1: 20, preferably chooses the taper design of 1: 15.
The slidercrank mechanism of the present embodiment, have employed the cross head design in the present embodiment, or have employed the linkage structure of the crosshead described in the present embodiment and shank, and its crosshead is connected with piston rod, and shank is equipped with connecting rod.
The linkage structure of existing crosshead and shank is illustrated as shown in Figure 6, is to be assembled by Fig. 6 mode by its existing crosshead block 1a and existing shank 2a.
Crosshead of the present utility model, adopt tapered structure two mounting hole, and the miner diameter end of two tapered structure mounting holes is all towards the design inside body, be different from existing crosshead two coniform hole tapered towards consistent design, the consistent degree of existing two coniform hole taperings is made to require to be reduced, reduce processing cost, and lay a good foundation for the linkage structure design of brand-new crosshead and shank.
The linkage structure of crosshead of the present utility model and shank, owing to adopting the miner diameter end of two tapered structure mounting holes all towards the design inside body, and by two tapering rings, shank is installed, compare the highi degree of accuracy cooperation that existing design can realize tapered structure position, both sides easily, the tapering matching degree of crosshead, shank is made to require to reduce, this linkage structure makes to carry out secondary operations to shank taper ends more simultaneously, greatly reduces the processing cost of shank; The linkage structure of this crosshead and shank in addition, makes the connection maintainability of crosshead, shank improve, improves maintenance quality, saves maintenance cost, and be conducive to the stable of equipment operation; And described tapering ring adopts gap or block design, be conducive to the degree of adaptability improving tapering ring and crosshead mounting hole, improve and safeguard assembly precision; And this structural design it also avoid and connects hole wearing and tearing and shortcoming that the crosshead that causes and shank the whole series are changed, save maintenance cost.
The linkage structure of crosshead of the present utility model and crosshead and shank, may be used in all equipment needing employing slidercrank mechanism, particularly in piston compressor.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a crosshead, it is characterized in that: the body (1) comprising crosshead, the two side of body (1) offers the mounting hole (3) installed for shank, two mounting holes (3) are tapered structure, and the miner diameter end of two tapered structure mounting holes (3) is all towards the inner side of body (1).
2. crosshead as claimed in claim 1, is characterized in that: the tapering of described two mounting holes (3) is consistent.
3. crosshead as claimed in claim 1, is characterized in that: the aperture of described two mounting holes (3) is consistent.
4. crosshead as claimed in claim 1, is characterized in that: described two mounting holes (3) coaxial line.
5. the linkage structure of a crosshead and shank, it is characterized in that: comprise the crosshead described in any one of Claims 1-4, shank (4) is provided with in the mounting hole (3) of crosshead, described shank (4) two ends are assemblied in mounting hole (3) by sheathed tapering ring (5), described tapering ring (5) outer diameter face is suitable with corresponding mounting hole (3) aperture surface, tapering ring (5) aperture surface is suitable with corresponding shank (4) mounting end, the position fixed structure for fixing shank (4) and tapering ring (5) relative position is also provided with between described shank (4) and tapering ring (5).
6. the linkage structure of crosshead as claimed in claim 5 and shank, is characterized in that: described position fixed structure is for connecting pressing plate (6), and described connection pressing plate (6) is connected with shank (4) by bolt.
7. the linkage structure of crosshead as claimed in claim 5 and shank, is characterized in that: described tapering ring (5) offers gap (7).
8. the linkage structure of crosshead as claimed in claim 5 and shank, is characterized in that: described tapering ring (5) forms the entirety of annular by least two pieces of tapering ring elements (8).
9. the linkage structure of crosshead as claimed in claim 5 and shank, is characterized in that: described shank (4) is cylindrical structural.
10. a slidercrank mechanism, is characterized in that: adopt the crosshead described in any one of Claims 1-4, or adopts the linkage structure of crosshead described in any one of claim 5 to 9 and shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169322.9U CN204664130U (en) | 2015-03-20 | 2015-03-20 | The linkage structure of crosshead, crosshead and shank and slidercrank mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169322.9U CN204664130U (en) | 2015-03-20 | 2015-03-20 | The linkage structure of crosshead, crosshead and shank and slidercrank mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664130U true CN204664130U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520169322.9U Expired - Fee Related CN204664130U (en) | 2015-03-20 | 2015-03-20 | The linkage structure of crosshead, crosshead and shank and slidercrank mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971853A (en) * | 2016-07-14 | 2016-09-28 | 沈阳佳信压缩机制造有限公司 | Hydraulic connection structure for connecting crosshead body with piston rod |
-
2015
- 2015-03-20 CN CN201520169322.9U patent/CN204664130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971853A (en) * | 2016-07-14 | 2016-09-28 | 沈阳佳信压缩机制造有限公司 | Hydraulic connection structure for connecting crosshead body with piston rod |
| CN105971853B (en) * | 2016-07-14 | 2017-11-17 | 沈阳佳信压缩机制造有限公司 | The hydraulic connecting structure that crosshead body is connected with piston rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20180320 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |