CN211975367U - Can improve lubricated effect's crosshead subassembly for diaphragm pump - Google Patents
Can improve lubricated effect's crosshead subassembly for diaphragm pump Download PDFInfo
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- CN211975367U CN211975367U CN201922414700.6U CN201922414700U CN211975367U CN 211975367 U CN211975367 U CN 211975367U CN 201922414700 U CN201922414700 U CN 201922414700U CN 211975367 U CN211975367 U CN 211975367U
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- crosshead
- oil
- oil groove
- sliding sleeve
- diaphragm pump
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Abstract
The utility model provides a can improve lubricated effect's crosshead subassembly for diaphragm pump solves the poor problem of lubricated effect to crosshead and crosshead pin in the current diaphragm pump. The structure comprises a crosshead sliding sleeve and a crosshead, wherein a first oil groove is axially formed in the outer circular surface of the upper part of the crosshead, and the first oil groove is at an acute angle relative to the offset angle right above the crosshead; a second oil groove which is centrosymmetric with the first oil groove is axially formed on the outer circular surface of the lower part of the crosshead; an oil passing channel communicated with the crosshead pin hole is formed at the bottom of the oil groove; two groups of oil holes are axially formed in the crosshead sliding sleeve, each first oil hole group comprises three first oil holes which are radially formed, two of the three first oil holes are located right above and below the crosshead sliding sleeve, and the outlet end of the third oil hole is communicated with the first oil groove or the second oil groove; the second oil hole group comprises three second oil holes which are arranged along the radial direction, wherein two of the second oil holes are positioned right above and right below the crosshead sliding sleeve, and the outlet end of the third oil hole is communicated with the second oil groove or the first oil groove.
Description
Technical Field
The utility model relates to a diaphragm pump technique especially relates to the crosshead assembly for the diaphragm pump that can improve lubricated effect.
Background
In the diaphragm pump, the crosshead is an important part for converting the rotation motion of a crankshaft into the reciprocating linear motion of the plunger piston through the driving of a connecting rod, and has a guiding function. As shown in fig. 1, a partial structure of a conventional diaphragm pump is schematically illustrated, and includes a frame 07, a crosshead shoe 02, a crosshead 03, a plunger 05, a connecting rod 01, and a crosshead pin 04; crosshead slide sleeve 02 sets up in the frame, and crosshead 03 sets up in crosshead slide sleeve 02 and can be relative crosshead slide sleeve 02 and do reciprocal linear movement, and tappet 06 is passed through to crosshead 03's one end and is connected with the outer plunger 05 of frame 07, and crosshead pin mounting hole has been seted up to its body, passes crosshead pin mounting hole and connecting rod 01 stub through crosshead pin 04, is connected crosshead 03 and connecting rod 01 stub, and the stub of connecting rod 01 is connected with the bent axle of diaphragm pump. As shown in fig. 2, in the conventional lubrication system of the crosshead 03, a first oil groove 09 is axially formed at an upper end portion of the crosshead 03, an annular oil groove 010 communicating with the first oil groove 09 is circumferentially formed, an oil hole is formed at a position opposite to the first oil groove 09 at an upper portion of the crosshead shoe, and lubricating fluid oil is injected into the first oil groove 09 through the oil hole; in the lubrication method of the crosshead pin 04, a second oil groove 08 perpendicular to and communicating with the first oil groove 09 is formed in the upper portion of the crosshead, and an oil passage penetrating through a crosshead pin mounting hole is formed in the groove bottom of the second oil groove 08 to lubricate the crosshead pin. First oil groove 09 is poured into earlier to lubricated liquid, flows through annular oil groove 010 after through first oil groove 09 and lubricates crosshead pin 04 through second oil groove 08 and oil passing channel, because lubricated liquid need through the upper oil hole of crosshead shoe, first oil groove 09, annular oil groove 010 or second oil groove 08, just can lubricate crosshead and crosshead pin for the lubricated effect to crosshead and crosshead pin is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the poor technical problem of lubricated effect to cross head and cross head round pin in the current diaphragm pump, the utility model provides a can improve lubricated effect's cross head subassembly for the diaphragm pump.
In order to achieve the above purpose, the utility model provides a technical scheme is:
the crosshead assembly for the diaphragm pump can improve the lubricating effect and comprises a crosshead sliding sleeve and a crosshead arranged in the crosshead sliding sleeve, wherein the crosshead can perform reciprocating linear movement relative to the crosshead sliding sleeve; the cross head pin hole has been seted up on the cross head, its special character lies in: a first oil groove is formed in the outer circular surface of the upper portion of the crosshead along the axial direction, the offset angle of the first oil groove relative to the position right above the crosshead is alpha, and the alpha is an acute angle; a second oil groove is formed in the outer circular surface of the lower portion of the crosshead along the axial direction, and the second oil groove and the first oil groove are centrosymmetric; a first oil passing channel communicated with the crosshead pin hole is formed at the bottom of the first oil groove; a second oil passing channel communicated with the crosshead pin hole is formed at the bottom of the second oil groove; two groups of oil holes are axially formed in the crosshead sliding sleeve and respectively form a first oil hole group and a second oil hole group; the first oil hole group comprises three first oil holes which are arranged along the radial direction, wherein two first oil holes are respectively positioned right above and right below the crosshead sliding sleeve, and the outlet end of the third first oil hole is communicated with one of the first oil groove and the second oil groove; the second oil hole group comprises three second oil holes which are arranged along the radial direction, wherein two of the second oil holes are respectively positioned right above and right below the crosshead sliding sleeve, and the outlet end of the third second oil hole is communicated with the other one of the first oil groove and the second oil groove.
Further, the offset angle alpha of the first oil groove relative to the position right above the crosshead is 30-40 degrees.
Further, the first oil hole group and the second oil hole group are located in the middle of the crosshead sliding sleeve.
Further, the axial distance between the first oil hole group and the second oil hole group is 80-100 mm.
Further, the offset angle alpha of the first oil groove relative to the position right above the crosshead is 35 degrees;
the axial distance between the first oil hole group and the second oil hole group is 90 mm.
Further, the axis of the first oil passing channel and the axis of the second oil passing channel are perpendicular to the axis of the crosshead pin hole.
Compared with the prior art, the utility model has the advantages that:
the crosshead sliding sleeve in the crosshead assembly of the utility model is provided with six oil holes, wherein the upper and lower oil holes are four in total for lubricating the outer circle of the crosshead, thereby avoiding friction overheating; the oil groove oil supply on two oilholes in addition for the cross head, this oil groove is given the oil supply, increases more oil-moistening ability, and is lubricated effectual, especially increases force-feed lubrication below the cross head, avoids the motion themogenesis too high.
Drawings
FIG. 1 is a partial schematic view of a diaphragm pump;
FIG. 2 is a schematic view of a crosshead oil sump in a prior art diaphragm pump;
in fig. 1 and 2, the reference numerals are as follows:
01-connecting rod, 02-crosshead slide, 03-crosshead, 04-, 05-plunger, 06-tappet, 07-frame, 08-second oil groove, 09-first oil groove, 010-annular oil groove.
FIG. 3 is a schematic structural view of a crosshead assembly for a diaphragm pump according to the present invention, which can improve the lubrication effect;
FIG. 4 is a top view of a crosshead in a crosshead assembly for a diaphragm pump according to the present invention, which can improve lubrication effect;
3 FIG. 35 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3
FIG. 6 is a schematic structural view of a crosshead shoe in a crosshead assembly for a diaphragm pump according to the present invention, which can improve lubrication effect;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;
FIG. 8 is a sectional view taken along line B-B of FIG. 6;
in fig. 3 to 8, the reference numerals are as follows:
1-a crosshead sliding sleeve, 11-a first oil hole group, 12-a second oil hole group, 13-a first oil hole, 14-a second oil hole, 2-a crosshead, 21-a crosshead pin hole, 22-a first oil groove, 23-a second oil groove, 24-a first oil passing channel and 25-a second oil passing channel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 3 to 8, the crosshead assembly for a diaphragm pump capable of improving a lubrication effect includes a crosshead slide sleeve 1 and a crosshead 2 disposed in the crosshead slide sleeve 1, wherein the crosshead 2 is capable of performing a reciprocating linear movement with respect to the crosshead slide sleeve 1; a crosshead pin hole 21 is formed in the crosshead 2, a first oil groove 22 is formed in the outer circular surface of the upper portion of the crosshead 2 along the axial direction, the offset angle of the first oil groove 22 relative to the position right above the crosshead 2 along the circumferential direction is alpha, the alpha can be 30-40 degrees, and 35 degrees are preferred; a second oil groove 23 is formed in the outer circular surface of the lower portion of the crosshead 2 along the axial direction, and the second oil groove 23 and the first oil groove 22 are centrosymmetric; a first oil passing channel 24 which is communicated with the crosshead pin hole 21 is formed at the bottom of the first oil groove 22; a second oil passing channel 25 which is communicated with the crosshead pin hole 21 is formed at the bottom of the second oil groove 23; two sets of oilholes are axially formed in the crosshead sliding sleeve 1, the first oilhole group 11 and the second oilhole group 12 are respectively arranged, the first oilhole group 11 and the second oilhole group 12 are located in the middle of the crosshead sliding sleeve 1, the axial distance between the first oilhole group 11 and the second oilhole group 12 is 80-100 mm, and the preferred axial distance between the first oilhole group 11 and the second oilhole group 12 is 90 mm.
The first oil hole group 11 comprises three first oil holes 13 which are arranged along the radial direction, wherein two first oil holes 13 are respectively positioned right above the crosshead sliding sleeve 1 and right below the crosshead sliding sleeve 1, and the outlet ends of the third first oil holes 13 are communicated with one of a first oil groove 22 and a second oil groove 23; the second oil hole group 12 includes three second oil holes 14 opened along the radial direction, wherein two of the second oil holes 14 are respectively located right above the crosshead slide sleeve 1 and right below the crosshead slide sleeve 1, and an outlet end of the third second oil hole 14 is communicated with the other one of the first oil groove 22 and the second oil groove 23.
In order to improve lubricated effect, the axis of first oily passageway 24 of crossing, the axis of second oily passageway 25 of crossing are all perpendicular with the axis of cross head pinhole 21 the utility model discloses the cross head sliding sleeve is equipped with six oilholes, wherein about respectively two oilholes totally four oilholes lubricate for the cross head excircle respectively, two other oilholes respectively with two oil grooves on the cross head intercommunication, lubricate with cross round pin upper portion and lower part respectively through two oil grooves, it is lubricated effectual, especially the cross head below increases force-feed lubrication, has increased more lubricating oil ability, avoids the cross head motion to generate heat too high.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art on the basis of the main technical idea of the present invention belong to the technical scope to be protected by the present invention.
Claims (6)
1. The crosshead assembly for the diaphragm pump can improve the lubricating effect and comprises a crosshead sliding sleeve (1) and a crosshead (2) arranged in the crosshead sliding sleeve (1), wherein the crosshead (2) can do reciprocating linear movement relative to the crosshead sliding sleeve (1); seted up cross head pinhole (21) on cross head (2), its characterized in that:
a first oil groove (22) is formed in the outer circular surface of the upper portion of the crosshead (2) along the axial direction, the offset angle of the first oil groove (22) relative to the position right above the crosshead (2) is alpha, and the alpha is an acute angle;
a second oil groove (23) is formed in the outer circular surface of the lower portion of the crosshead (2) along the axial direction, and the second oil groove (23) is centrosymmetric with the first oil groove (22);
a first oil passing channel (24) communicated with the crosshead pin hole (21) is formed at the bottom of the first oil groove (22);
a second oil passing channel (25) communicated with the crosshead pin hole (21) is formed at the bottom of the second oil groove (23);
two groups of oil holes are axially formed in the crosshead sliding sleeve (1), namely a first oil hole group (11) and a second oil hole group (12);
the first oil hole group (11) comprises three first oil holes (13) which are arranged along the radial direction, wherein two first oil holes (13) are respectively positioned right above and right below the crosshead sliding sleeve (1), and the outlet end of the third first oil hole (13) is communicated with one of the first oil groove (22) and the second oil groove (23);
the second oil hole group (12) comprises three second oil holes (14) which are formed along the radial direction, wherein two second oil holes (14) are respectively positioned right above and right below the crosshead sliding sleeve (1), and the outlet end of the third second oil hole (14) is communicated with the other one of the first oil groove (22) and the second oil groove (23).
2. The crosshead assembly for a diaphragm pump according to claim 1, wherein the lubricating effect is improved by: the offset angle alpha of the first oil groove (22) relative to the position right above the crosshead (2) is 30-40 degrees.
3. The crosshead assembly for a diaphragm pump according to claim 2, wherein the lubricating effect is improved by: the first oil hole group (11) and the second oil hole group (12) are positioned in the middle of the crosshead sliding sleeve (1).
4. The crosshead assembly for a diaphragm pump according to claim 3, wherein the lubricating effect is improved by: the axial distance between the first oil hole group (11) and the second oil hole group (12) is 80-100 mm.
5. The crosshead assembly for a diaphragm pump according to claim 4, wherein the lubricating effect is improved by: the offset angle alpha of the first oil groove (22) relative to the position right above the crosshead (2) is 35 degrees;
the axial distance between the first oil hole group (11) and the second oil hole group (12) is 90 mm.
6. The crosshead assembly for a diaphragm pump according to claim 5, wherein the lubricating effect is improved by: the axis of the first oil passing channel (24) and the axis of the second oil passing channel (25) are perpendicular to the axis of the crosshead pin hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414700.6U CN211975367U (en) | 2019-12-29 | 2019-12-29 | Can improve lubricated effect's crosshead subassembly for diaphragm pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922414700.6U CN211975367U (en) | 2019-12-29 | 2019-12-29 | Can improve lubricated effect's crosshead subassembly for diaphragm pump |
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| CN211975367U true CN211975367U (en) | 2020-11-20 |
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| CN201922414700.6U Active CN211975367U (en) | 2019-12-29 | 2019-12-29 | Can improve lubricated effect's crosshead subassembly for diaphragm pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898492A (en) * | 2021-10-09 | 2022-01-07 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
-
2019
- 2019-12-29 CN CN201922414700.6U patent/CN211975367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898492A (en) * | 2021-10-09 | 2022-01-07 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
| CN113898492B (en) * | 2021-10-09 | 2024-03-29 | 常州中车柴油机零部件有限公司 | Large-cylinder-diameter forged steel piston and manufacturing method thereof |
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Effective date of registration: 20230607 Address after: 014000 Shenhua Science Park No. 1, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Patentee after: Guoneng Baotou Coal Chemical Co.,Ltd. Patentee after: SHAANXI AEROSPACE POWER HIGH-TECH Co.,Ltd. Address before: 710077 No. 78, Kam Yip Road, hi tech Zone, Shaanxi, Xi'an Patentee before: SHAANXI AEROSPACE POWER HIGH-TECH Co.,Ltd. |