CN107605706B - Piston compressor is with easy loading and unloading type fastening connection device - Google Patents
Piston compressor is with easy loading and unloading type fastening connection device Download PDFInfo
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- CN107605706B CN107605706B CN201711085743.3A CN201711085743A CN107605706B CN 107605706 B CN107605706 B CN 107605706B CN 201711085743 A CN201711085743 A CN 201711085743A CN 107605706 B CN107605706 B CN 107605706B
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Abstract
The invention relates to the technical field of structural connecting pieces of piston compressors, in particular to an easily-assembled and easily-disassembled fastening connecting device for a piston compressor. The easily-assembled and disassembled fastening and connecting device for the piston compressor fixes the right-angle steel plate and the fastening steel plate by using the elastic limiting rod, the whole fixing mode does not adopt the traditional fastening mode, tools are not needed, the assembling and disassembling operation is simple and convenient, the problems of the mutual movement between the crosshead nut and the crosshead body and the looseness of the piston rod caused by overlarge reciprocating inertia force, long working time and high working strength in small and medium-sized compressors are solved, and the safety and the reliability of the continuous working of the compressor are effectively improved.
Description
Technical Field
The invention relates to the technical field of structural connecting pieces of piston compressors, in particular to an easily-assembled and easily-disassembled fastening connecting device for a piston compressor.
Background
In a reciprocating compressor, a crosshead is often used for transition connection between a connecting rod and a piston rod, and the piston rod is connected with the connecting rod through the crosshead so that the piston rod is not subjected to side pressure caused by the connecting rod. So that the friction of the piston with the cylinder is minimal. And the crosshead and the piston rod only do axial motion, so that the volume of the cylinder can be fully utilized, the method for controlling lubricating oil is simpler, and the use efficiency of the compressor is improved.
Although the reciprocating compressor has a plurality of connection modes between the piston rod and the crosshead, most of the connection modes have the defects of large mass or complex installation, and the mass of the crosshead in the small and medium-sized compressor has great influence on the balancing of the compressor. Therefore, the connection mode with simple installation and light weight becomes the first choice of small and medium-sized compressors, and the threaded connection just meets the requirements. Therefore, the most widely used small and medium-sized compressors are threaded connections.
Usually by the piston rod in traditional threaded connection, cross head nut, two nut locking systems are constituteed to the cross head body, and install a locking gasket additional between cross head nut and cross head body, the possibility with the motion each other between cross head nut and the cross head body falls to minimumly, thereby two nut locking systems of better lock death, but the moment requirement to the nut locking is higher in two nut locking, locking torque is big, can destroy the screw thread and cause the smooth silk not hard up, locking torque can twist not tight nut for a short time and also can cause not hard up, and break curved locking gasket and let it tightly attached when on cross head nut, need use the hammer to beat, the screw thread on the nut is very probably destroyed at the in-process of beating, thereby influence the screwing up of nut.
The working time of the compressor is generally very long, the reciprocating inertia force is also relatively large, the double-nut locking system is inevitably loosened under the action of the long-time reciprocating inertia force, a piece of stop washer can prevent the cross head nut and the cross head body from moving mutually in a short time, but the stop washer can deform and lose effect under the long-time high-strength working. Once the piston rod and the crosshead are loosened, a great potential safety hazard is often generated, the cylinder is hit, unbalanced moment is generated, abrasion of the piston and the cylinder is accelerated, and the possibility of machine damage and death is severe.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems in the prior art, an improved easily detachable fastening connection device for a piston compressor is provided, which solves the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an easy loading and unloading type fastening connection device for piston compressor, includes the cross head body, fixes the cross head nut in cross head body upper end and fixes the piston rod of indulging in cross head nut upper end, cross head body upper surface be located cross head nut periphery and have the external go-between of bellied body structure that makes progress, external go-between lateral wall on be provided with the right angle steel sheet, right angle steel sheet upper end be provided with the fastening steel sheet, external go-between lateral wall on have four with right angle steel sheet complex connecting plane, connecting plane and cross head nut be connected and seted up the spacing groove on the lateral wall, the connecting plane on all set up the upper end and have open-ended indulging to put the loading and unloading groove, indulging put loading and unloading groove cross section be T type structure, right angle steel sheet and external go-between be connected and have on have with indulging to put loading and unloading groove complex indu, the right-angle steel plate is inserted into the longitudinal assembly and disassembly groove through the inner longitudinal assembly block and is fixedly connected with the connecting plane in an inserting mode.
Furthermore, indulge and put assembly block upper end seted up built-in draw-in groove, fastening steel sheet lower extreme have with built-in draw-in groove matched with external fixture block of integrative structure, indulge and put the lateral opening of seting up built-in elastic extrusion piece on the assembly block lateral wall, indulge and put and to dismantle and offer on the inslot lateral wall with elastic extrusion piece matched with inside spacing groove, fastening steel sheet insert through lower extreme external fixture block and indulge and put assembly inslot control elastic extrusion piece and insert inside spacing groove and inside spacing groove joint fixed.
Furthermore, the inside of the longitudinal assembly block is transversely provided with an external limiting hole with an internal elastic limiting rod, the inside of the external fixture block is transversely provided with an internal limiting hole matched with the elastic limiting rod, and the longitudinal assembly block and the external fixture block respectively cross the external limiting hole and the internal limiting hole through the elastic limiting rod to be clamped and fixed.
Furthermore, the size of the inner aperture of the external limiting hole is the same as that of the inner aperture of the internal limiting hole.
The easily-assembled and disassembled fastening and connecting device for the piston compressor has the advantages that the right-angle steel plate and the fastening steel plate for improving the lateral supporting and limiting performance of the crosshead nut are fixedly inserted into the side wall of the external connecting ring, the external clamping block at the lower end of the fastening steel plate is inserted into the vertical assembling groove of the right-angle steel plate to fix the external connecting ring and the right-angle steel plate, and the elastic limiting rod is used for fixing the right-angle steel plate and the fastening steel plate.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a sectional view of a joining position of a right angle steel plate and a fastening steel plate in the present invention.
In the drawing, 1, a crosshead body, 2, a crosshead nut, 3, a longitudinally arranged piston rod, 4, an external connecting ring, 5, a right-angle steel plate, 6, a fastening steel plate, 7, a connecting plane, 8, a limiting groove, 9, a longitudinally arranged assembling and disassembling groove, 10, a longitudinally arranged assembling block, 11, an internal clamping groove, 12, an external clamping block, 13, an elastic extrusion block, 14, an internal limiting groove, 15, an elastic limiting rod, 16, an external limiting hole and 17, an internal limiting hole are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
An easily assembled and disassembled fastening and connecting device for a piston compressor, which is shown in fig. 1 and fig. 2, comprises a crosshead body 1, a crosshead nut 2 fixed at the upper end of the crosshead body 1 and a longitudinal piston rod 3 fixed at the upper end of the crosshead nut 2, wherein the upper surface of the crosshead body 1 is provided with an integrally structured external connecting ring 4 protruding upwards at the periphery of the crosshead nut 2, the outer side wall of the external connecting ring 4 is provided with a right angle steel plate 5, the upper end of the right angle steel plate 5 is provided with a fastening steel plate 6, the outer side wall of the external connecting ring 4 is provided with four connecting planes 7 matched with the right angle steel plate 5, the connecting side wall of the connecting planes and the crosshead nut 2 is provided with a limiting groove 8, the connecting planes 7 are provided with longitudinal assembling and disassembling grooves 9 with openings at the upper ends, the cross section of the longitudinal assembling and disassembling grooves 9 is of a T-shaped structure, the connecting surface of the steel plate, the right-angle steel plate 5 is inserted into the longitudinal assembly and disassembly groove 9 through the inner longitudinal assembly block 10 and is fixedly connected with the connecting plane 7 in an inserting mode.
Further, the upper end of the longitudinal assembly block 10 is provided with an internal clamping groove 11, the lower end of the fastening steel plate 6 is provided with an external clamping block 12 which is of an integral structure and is matched with the internal clamping groove 11, the outer side wall of the longitudinal assembly block 10 is provided with a lateral opening of an internal elastic extrusion block 13, the inner side wall of the longitudinal assembly and disassembly groove 9 is provided with an internal limiting groove 14 which is matched with the elastic extrusion block 13, the fastening steel plate 6 is inserted into the longitudinal assembly groove 9 through the external clamping block 12 at the lower end to control the elastic extrusion block 13 to be inserted into the internal limiting groove 14 and be clamped and fixed with the internal limiting groove 14, further, the inner part of the longitudinal assembly block 10 is transversely provided with an external limiting hole 16 of an internal elastic limiting rod 15, the inner part of the external clamping block 12 is transversely provided with an internal limiting hole 17 which is matched with the elastic limiting rod 15, the longitudinal assembly block 10 and the external clamping block 12 respectively, furthermore, the inner bore diameter of the external limiting hole 16 is the same as that of the internal limiting hole 17, the easy-to-assemble and disassemble fastening and connecting device for the piston compressor is characterized in that a right-angle steel plate 5 and a fastening steel plate 6 for improving the lateral supporting and limiting performance of the crosshead nut 2 are fixedly inserted into the side wall of the external connecting ring 4, the external fixture block 12 at the lower end of the fastening steel plate 6 is inserted into the vertical assembly groove 9 of the right-angle steel plate 5 to fix the external connecting ring 4 and the right-angle steel plate 5, the elastic limiting rod 15 is used for fixing the right-angle steel plate 5 and the fastening steel plate 6, the whole fixing mode does not adopt the traditional fastening mode, does not need tools, is simple and convenient in assembling and disassembling operation, and solves the problems of overlarge reciprocating inertia force, long working time and looseness of the crosshead nut and the crosshead body caused by high working strength and looseness of a piston rod, the safety and reliability of the continuous operation of the compressor are effectively improved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. The utility model provides a piston compressor is with easy loading and unloading type fastening connection device, includes cross head body (1), fixes cross head nut (2) in cross head body (1) upper end and fixes indulging piston rod (3) of putting in cross head nut (2) upper end, characterized by: the crosshead body (1) upper surface be located crosshead nut (2) periphery and have outside go-between (4) of the bellied integrative structure of ascending, external go-between (4) lateral wall on be provided with right angle steel sheet (5), right angle steel sheet (5) upper end be provided with fastening steel sheet (6), external go-between (4) lateral wall on have four with right angle steel sheet (5) matched with connecting plane (7), connecting plane (7) be connected with crosshead nut (2) on and seted up spacing groove (8), connecting plane (7) on all set up the upper end and have open-ended indulge put the device and unload groove (9), indulge put the device and unload groove (9) cross section and be T type structure, steel sheet (5) and external go-between (4) be connected and have on the right angle and indulge put assembly piece (10) that unloads groove (9) matched with indulging, the right-angle steel plate (5) is inserted into the longitudinal assembly and disassembly groove (9) through the inner longitudinal assembly block (10) to be fixedly inserted into the connection plane (7);
the upper end of the longitudinal assembly block (10) is provided with an internal clamping groove (11), the lower end of the fastening steel plate (6) is provided with an external clamping block (12) of an integrated structure matched with the internal clamping groove (11), the outer side wall of the longitudinal assembly block (10) is provided with a lateral opening of a built-in elastic extrusion block (13), the inner side wall of the longitudinal assembly and disassembly groove (9) is provided with an internal limiting groove (14) matched with the elastic extrusion block (13), and the external clamping block (12) at the lower end is inserted into the longitudinal assembly and disassembly groove (9) to control the elastic extrusion block (13) to be inserted into the internal limiting groove (14) so as to clamp and fix the fastening steel plate (6) and the internal limiting groove (14);
the longitudinal assembly block (10) is internally and transversely provided with an external limiting hole (16) with an internal elastic limiting rod (15), the external fixture block (12) is internally and transversely provided with an internal limiting hole (17) matched with the elastic limiting rod (15), and the elastic limiting rod (15) respectively traverses the external limiting hole (16) and the internal limiting hole (17) to enable the longitudinal assembly block (10) and the external fixture block (12) to be clamped and fixed.
2. The piston compressor easy-to-mount and remove fastening and connecting device as set forth in claim 1, wherein: the inner aperture of the external limiting hole (16) is the same as the inner aperture of the internal limiting hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085743.3A CN107605706B (en) | 2017-11-07 | 2017-11-07 | Piston compressor is with easy loading and unloading type fastening connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711085743.3A CN107605706B (en) | 2017-11-07 | 2017-11-07 | Piston compressor is with easy loading and unloading type fastening connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107605706A CN107605706A (en) | 2018-01-19 |
| CN107605706B true CN107605706B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711085743.3A Active CN107605706B (en) | 2017-11-07 | 2017-11-07 | Piston compressor is with easy loading and unloading type fastening connection device |
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| Country | Link |
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| CN (1) | CN107605706B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095735A (en) * | 1999-06-21 | 2000-08-01 | Weinstein; Leslie J. | Locking nut assembly |
| CN201836038U (en) * | 2010-10-26 | 2011-05-18 | 中国有色(沈阳)泵业有限公司 | Connecting device for crosshead and piston rod of diaphragm pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872395A (en) * | 1987-11-23 | 1989-10-10 | Dresser-Rand Company | Crosshead per se, and in combination with a connecting rod assembly and a piston rod |
| JP4193674B2 (en) * | 2003-10-28 | 2008-12-10 | 株式会社日立プラントテクノロジー | Piston rod fastening structure of reciprocating compressor |
| CN201281015Y (en) * | 2008-07-19 | 2009-07-29 | 海门市海真真空设备有限公司 | Novel crosshead connecting structure |
| CN104121185B (en) * | 2014-08-06 | 2016-05-11 | 无锡压缩机股份有限公司 | A kind of piston rod is connected adjustment structure with crosshead body |
| CN204200510U (en) * | 2014-09-13 | 2015-03-11 | 安徽科海压缩机制造有限公司 | A kind of crosshead for piston compressor |
| CN106321405B (en) * | 2016-08-31 | 2018-08-24 | 许伟 | A kind of compressor crosshead piston rod and cap anti-loosing device |
| CN206478093U (en) * | 2017-01-21 | 2017-09-08 | 深圳市金达来精密科技股份有限公司 | A kind of locking fastening combination nut |
-
2017
- 2017-11-07 CN CN201711085743.3A patent/CN107605706B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6095735A (en) * | 1999-06-21 | 2000-08-01 | Weinstein; Leslie J. | Locking nut assembly |
| CN201836038U (en) * | 2010-10-26 | 2011-05-18 | 中国有色(沈阳)泵业有限公司 | Connecting device for crosshead and piston rod of diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107605706A (en) | 2018-01-19 |
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Effective date of registration: 20201228 Address after: 232000: 50m to the east of Hehuai road and north of Beizhan Road, Shannan new area, Huainan City, Anhui Province Patentee after: Huainan Baibang Pneumatic Technology Co.,Ltd. Address before: Workshop 1, no.8521 Huangshan Avenue, Bengbu City, Anhui Province 233000 Patentee before: BENGBU GAOKE RUILI COMPRESSOR Co.,Ltd. |