CN204200510U - A kind of crosshead for piston compressor - Google Patents

A kind of crosshead for piston compressor Download PDF

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Publication number
CN204200510U
CN204200510U CN201420545036.3U CN201420545036U CN204200510U CN 204200510 U CN204200510 U CN 204200510U CN 201420545036 U CN201420545036 U CN 201420545036U CN 204200510 U CN204200510 U CN 204200510U
Authority
CN
China
Prior art keywords
crosshead
block
piston rod
equilibrium
piston
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 - Fee Related
Application number
CN201420545036.3U
Other languages
Chinese (zh)
Inventor
朱泽轩
孙秀芳
汪长波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ANHUI KEHAI COMPRESSOR MANUFACTURING Co Ltd
Original Assignee
ANHUI KEHAI COMPRESSOR MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ANHUI KEHAI COMPRESSOR MANUFACTURING Co Ltd filed Critical ANHUI KEHAI COMPRESSOR MANUFACTURING Co Ltd
Priority to CN201420545036.3U priority Critical patent/CN204200510U/en
Application granted granted Critical
Publication of CN204200510U publication Critical patent/CN204200510U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to Compressor Technology field, and specifically refer to a kind of crosshead for piston compressor, piston compressor includes piston rod; Crosshead comprises crosshead block, lock nut, bolt and equilibrium block, and described equilibrium block is disc equilibrium block; The central part of described equilibrium block is provided with piston rod passing hole; The diameter of described piston rod passing hole is greater than the diameter of described piston rod; The central part of described equilibrium block is also provided with a counterbore; The degree of depth of described counterbore is less than the thickness of described equilibrium block; The degree of depth of described counterbore is greater than the thickness of described lock nut; The diameter of described counterbore is greater than the diameter of described piston passing hole; Described equilibrium block is evenly distributed with several through holes, carries out spacing by equilibrium block to lock nut while the utility model eliminates locking tooth bar, make the connection between piston rod and crosshead more reliable.

Description

A kind of crosshead for piston compressor
Technical field
The utility model relates to Compressor Technology field, specifically refers to a kind of crosshead for piston compressor.
Background technique
In recent years, along with China and even the world, the demand to natural gas resource increases gradually, China and other countries of the world strengthen all gradually to gas extraction, and gas extraction often be unable to do without natural gas compressor, crosshead in natural gas compressor is as a kind of important component, must rely on other countries and other countries' import, crosshead is a kind of part for connecting piston and connecting rod.
Figure 1 shows that a kind of mounting structure figure of traditional crosshead, wherein equilibrium block 2 is fixed on crosshead block 1 by bolt 3, piston rod 6 is screwed in the tapped hole of crosshead body 1, tightening lock nut 5 pairs of piston rods 6 carries out locking, lock nut 5 and crosshead body 1 are fitted on Duan Wai garden tooth, locking tooth bar 4 is fixed on crosshead body 1 by bolt 3, and the tooth on locking tooth bar 4 engages locking with the tooth on lock nut 5 cylindrical.
Traditional crosshead is undertaken locking by lock nut 5 and locking tooth bar 4 pairs of piston rods, and when crosshead does to-and-fro motion frequently along with piston, the phenomenon loosened so often can appear in lock nut 5.
Model utility content
For problems of the prior art, the utility model is intended to disclose a kind of crosshead for piston compressor.
The utility model discloses a kind of crosshead for piston compressor, piston compressor includes piston rod; Crosshead comprises crosshead block, lock nut, bolt and equilibrium block, and described equilibrium block is disc equilibrium block; The central part of described equilibrium block is provided with piston rod passing hole; The diameter of described piston rod passing hole is greater than the diameter of described piston rod; The central part of described equilibrium block is also provided with a counterbore; The degree of depth of described counterbore is less than the thickness of described equilibrium block; The degree of depth of described counterbore is greater than the thickness of described lock nut; The diameter of described counterbore is greater than the diameter of described piston passing hole; Described equilibrium block is evenly distributed with several through holes.
The central part of its right end face of described crosshead block is provided with piston rod mounting hole; Described piston rod mounting hole is provided with internal thread; The front portion of described piston rod is provided with outside thread; Described piston rod is threaded with described crosshead block by described piston mounting holes.
Described lock nut is threadedly connected on described piston rod; The left end face of described lock nut withstands its right end face of described crosshead block.
The end face on the right side of described crosshead block is also evenly distributed with several tapped holes; Described equilibrium block is connected with described crosshead block by bolt.
Its right end face of described lock nut is withstood in the bottom surface of described counterbore.
Described equilibrium block is evenly distributed with four through holes; Its right end face of described crosshead block is evenly distributed with four tapped holes; Described through hole and described tapped hole one_to_one corresponding.
Beneficial effect: the utility model carries out spacing by novel equilibrium block to lock nut while eliminating locking tooth bar, makes the connection between piston rod and crosshead more reliable.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of traditional crosshead.
Fig. 2 is mounting structure schematic diagram of the present utility model.
Description of reference numerals: crosshead block 1, equilibrium block 2, bolt 3, locking tooth bar 4, lock nut 5, piston rod 6.
Embodiment
Below in conjunction with Figure of description and embodiment, embodiment of the present utility model is described in further detail:
With reference to a kind of crosshead with Novel balance block 2 for piston compressor shown in Fig. 2, piston compressor includes piston rod 6; Crosshead comprises crosshead block 1, lock nut 5, bolt 3 and equilibrium block 2, and described equilibrium block 2 is disc equilibrium block 2; The central part of described equilibrium block 2 is provided with piston rod 6 passing hole; The diameter of described piston rod 6 passing hole is greater than the diameter of described piston rod 6; The central part of described equilibrium block 2 is also provided with a counterbore; The degree of depth of described counterbore is less than the thickness of described equilibrium block 2; The degree of depth of described counterbore is greater than the thickness of described lock nut 5; The diameter of described counterbore is greater than the diameter of described piston passing hole; Described equilibrium block 2 is evenly distributed with several through holes; The central part of its right end face of described crosshead block 1 is provided with piston rod 6 mounting hole; Described piston rod 6 mounting hole is provided with internal thread; The front portion of described piston rod 6 is provided with outside thread; Described piston rod 6 is threaded with described crosshead block 1 by described piston mounting holes; Described lock nut 5 is threadedly connected on described piston rod 6; The left end face of described lock nut 5 withstands its right end face of described crosshead block 1; The end face on the right side of described crosshead block 1 is also evenly distributed with several tapped holes; Described equilibrium block 2 is connected with described crosshead block 1 by bolt 3; Its right end face of described lock nut 5 is withstood in the bottom surface of described counterbore; Described equilibrium block 2 is evenly distributed with four through holes; Its right end face of described crosshead block 1 is evenly distributed with four tapped holes; Described through hole and described tapped hole one_to_one corresponding.
Concrete installation steps of the present utility model are as follows:
First described piston rod 6 is screwed in the tapped hole of described crosshead block 1, tightening described lock nut 5 carries out locking to described piston rod 6, finally described equilibrium block 2 is fixed on crosshead block 1 by bolt 3, equilibrium block 2 simultaneously compresses described lock nut 5, and the pressured tight rear frictional force produced prevents described lock nut 5 from loosening.
Model utility is undertaken spacing by novel equilibrium block 2 pairs of lock nuts 5 while eliminating locking tooth bar 4, makes the connection between piston rod 6 and crosshead more reliable.
The above, it is only preferred embodiment of the present utility model, not any restriction is made to technical scope of the present utility model, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.

Claims (6)

1., for a crosshead for piston compressor, piston compressor includes piston rod; Crosshead comprises crosshead block, lock nut, bolt and equilibrium block, it is characterized in that: described equilibrium block is disc equilibrium block; The central part of described equilibrium block is provided with piston rod passing hole; The diameter of described piston rod passing hole is greater than the diameter of described piston rod; The central part of described equilibrium block is also provided with a counterbore; The degree of depth of described counterbore is less than the thickness of described equilibrium block; The degree of depth of described counterbore is greater than the thickness of described lock nut; The diameter of described counterbore is greater than the diameter of described piston passing hole; Described equilibrium block is evenly distributed with several through holes.
2. a kind of crosshead for piston compressor as claimed in claim 1, is characterized in that: the central part of its right end face of described crosshead block is provided with piston rod mounting hole; Described piston rod mounting hole is provided with internal thread; The front portion of described piston rod is provided with outside thread; Described piston rod is threaded with described crosshead block by described piston mounting holes.
3. a kind of crosshead for piston compressor as claimed in claim 1, is characterized in that: described lock nut is threadedly connected on described piston rod; The left end face of described lock nut withstands its right end face of described crosshead block.
4. a kind of crosshead for piston compressor as claimed in claim 1, is characterized in that: the end face on the right side of described crosshead block is also evenly distributed with several tapped holes; Described equilibrium block is connected with described crosshead block by bolt.
5. a kind of crosshead for piston compressor as claimed in claim 1, is characterized in that: its right end face of described lock nut is withstood in the bottom surface of described counterbore.
6. a kind of crosshead for piston compressor as claimed in claim 1, is characterized in that: described equilibrium block is evenly distributed with four through holes; Its right end face of described crosshead block is evenly distributed with four tapped holes; Described through hole and described tapped hole one_to_one corresponding.
CN201420545036.3U 2014-09-13 2014-09-13 A kind of crosshead for piston compressor Expired - Fee Related CN204200510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420545036.3U CN204200510U (en) 2014-09-13 2014-09-13 A kind of crosshead for piston compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420545036.3U CN204200510U (en) 2014-09-13 2014-09-13 A kind of crosshead for piston compressor

Publications (1)

Publication Number Publication Date
CN204200510U true CN204200510U (en) 2015-03-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420545036.3U Expired - Fee Related CN204200510U (en) 2014-09-13 2014-09-13 A kind of crosshead for piston compressor

Country Status (1)

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CN (1) CN204200510U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089686A (en) * 2016-07-18 2016-11-09 衡阳中地装备探矿工程机械有限公司 A kind of crosshead and piston rod attachment structure and processing method thereof
CN107605706A (en) * 2017-11-07 2018-01-19 蚌埠高科瑞力压缩机有限公司 A kind of piston compressor easily assembling type fastening-connecting device
CN107630804A (en) * 2017-11-07 2018-01-26 蚌埠高科瑞力压缩机有限公司 A kind of piston type compressor fastening-connecting device
CN107701402A (en) * 2017-11-07 2018-02-16 蚌埠高科瑞力压缩机有限公司 A kind of split type fastener for crosshead part
CN107882714A (en) * 2017-11-07 2018-04-06 蚌埠高科瑞力压缩机有限公司 A kind of piston compressor built-in elastic latch segment is stably connected with device
CN107882722A (en) * 2017-11-07 2018-04-06 蚌埠高科瑞力压缩机有限公司 A kind of convertible fastener of stretching for crosshead part

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089686A (en) * 2016-07-18 2016-11-09 衡阳中地装备探矿工程机械有限公司 A kind of crosshead and piston rod attachment structure and processing method thereof
CN107605706A (en) * 2017-11-07 2018-01-19 蚌埠高科瑞力压缩机有限公司 A kind of piston compressor easily assembling type fastening-connecting device
CN107630804A (en) * 2017-11-07 2018-01-26 蚌埠高科瑞力压缩机有限公司 A kind of piston type compressor fastening-connecting device
CN107701402A (en) * 2017-11-07 2018-02-16 蚌埠高科瑞力压缩机有限公司 A kind of split type fastener for crosshead part
CN107882714A (en) * 2017-11-07 2018-04-06 蚌埠高科瑞力压缩机有限公司 A kind of piston compressor built-in elastic latch segment is stably connected with device
CN107882722A (en) * 2017-11-07 2018-04-06 蚌埠高科瑞力压缩机有限公司 A kind of convertible fastener of stretching for crosshead part

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150311

Termination date: 20160913

CF01 Termination of patent right due to non-payment of annual fee