CN201827067U - Lubricating structure of crosshead and crosshead pin for drill pump - Google Patents
Lubricating structure of crosshead and crosshead pin for drill pump Download PDFInfo
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- CN201827067U CN201827067U CN2010205818752U CN201020581875U CN201827067U CN 201827067 U CN201827067 U CN 201827067U CN 2010205818752 U CN2010205818752 U CN 2010205818752U CN 201020581875 U CN201020581875 U CN 201020581875U CN 201827067 U CN201827067 U CN 201827067U
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- crosshead
- oil duct
- pin
- oil
- storage tank
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Abstract
The utility model discloses a lubricating structure of a crosshead and a crosshead pin for a drill pump, which comprises the crosshead (1) and the crosshead pin (2), wherein the crosshead pin (2) is inserted in the pin hole of the crosshead (1), the outer surface of the crosshead (1) is connected with two crosshead sliding shoes (1a), the inner surface of each crosshead sliding shoe (1a) is contacted with the outer surface of the crosshead (1), the outer surface of each crosshead sliding shoe (1a) is provided with a sliding shoe oil storage slot (1b), and the outer surface of the crosshead (1) is provided with a crosshead oilway (1c). The lubricating structure of the crosshead and the crosshead pin for the drill pump is simple in structure, by multi lubricating channels, the lubricating oil can fully reach the gap between the sliding shoe and the crosshead slideway and the gap between the crosshead pin and the copper sleeve, so that the related rubbing pairs can be fully lubricated, and the service life of related parts can be prolonged.
Description
Technical field
The utility model belongs to petroleum and natural gas drilling equipment field, relates to a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for concretely.
Background technique
Drilling mud pump is described as rig " heart ", gets out first mouthful of rig with commercial value from the whole world and uses drilling mud pump, and the history in more than 100 year has been arranged.This 100 for many years, the rig slurry pump with commercial value all is the triplex pumps that adopt.Nearest more than 10 years, people begin constantly to explore exploitation five cylinder pumps, because of five cylinder pumps are compared with triplex pump, have the pressure surge that reduced to discharge medium, enlarge range of flow, cancelled traditional shock absorber for output, improved the life-span of discharging fluid cylinder, simultaneously the volume of drilling pump is reduced gently, advantages such as weight saving, but all very difficult because of five cylinder pump manufacturings maintenance.
But the variation following points of five cylinder pump structures and triplex pump structure maximum:
First aspect, connecting rod bearing must be replaced with sliding bearing with the rolling bearing of triplex pump.
Second aspect, the deceleration gearwheel on the triplex pump bent axle generally is installed in the middle of the bent axle, and the on-stream effect that can also play splash lubrication is comprising lubricating crosshead slideway and connecting rod small end connecting rod small-end bearing.And the deceleration gearwheel on the five cylinder pump bent axles is installed in an end or two ends of bent axle.Just can not rely on the splash lubrication effect of gearwheel to the lubricated of crosshead slideway and connecting rod small end connecting rod small-end bearing.
The 3rd aspect, the connecting rod of five cylinder pumps is more much smaller than the connecting rod of triplex pump, the connecting rod small-end bearing of connecting rod small end and crosshead pin are more much smaller than the rolling bearing and the crosshead pin of the connecting rod small end of triplex pump, cause the specific pressure between connecting rod small-end bearing and the crosshead pin friction pair high especially, pressure, flow and the viscosity of lubricant oil are compared just stricter with the connecting rod small end and the rolling bearing between the crosshead of triplex pump, not only need higher lubricating oil pressure, also need bigger flow, require mobile more difficult full-bodied lubricant oil simultaneously.
The 4th aspect, the crosshead of five cylinder pumps and crosshead slideway are also more much smaller than triplex pump, cause the specific pressure of crosshead and crosshead slideway friction pair also high especially, also need higher lubricating oil pressure, the littler oil body of bigger flow of lubrication and flowability.
Because above four aspects, lubricated between solution connecting rod small end connecting rod small-end bearing that must be well and the crosshead pin friction pair must well solve lubricated between crosshead and the crosshead slideway friction pair.
The model utility content
The purpose of this utility model provided a kind of multi-path oil passage, make lubricant oil can fully reach between crawler shoe and the crosshead slideway and between crosshead pin and the copper sheathing, make relevant friction pair can obtain sufficient lubrication, improve the working life of related components.
The technical solution of the utility model is as follows:
A kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for, comprise crosshead, crosshead pin, described crosshead pin inserts in the pin-and-hole of described crosshead, described crosshead outer surface is connected with the crosshead crawler shoe of two symmetric arrangement, the internal surface of described crosshead crawler shoe contacts with the outer surface of described crosshead, described crosshead crawler shoe outer surface has the crawler shoe oil storage tank, described crosshead outer surface has the crosshead oil duct, described crawler shoe oil storage tank is communicated with by the intercommunicating pore that is provided with on the crosshead crawler shoe with the crosshead oil duct, and the crosshead that is positioned at described crosshead oil duct two has the pin-and-hole oil duct; Have first oil duct and second oil duct vertically in described crosshead pin inside, described first oil duct and the second oil duct two ends radially have oil inlet passage, described first oil duct and second oil duct middle part radially have oil discharge passage, and described oil discharge passage is communicated with the oil storage tank that described crosshead pin outer surface is opened; Wherein, described pin-and-hole oil duct is communicated with its corresponding oil inlet passage.
Adopt said structure lubricant oil at first enter the crawler shoe oil storage tank--intercommunicating pore--crosshead oil duct--pin-and-hole oil duct--oil inlet passage--first oil duct or second oil duct--oil discharge passage--oil storage tank from the oil inlet hole of crosshead slideway, promptly satisfied lubricating between copper sheathing and the crosshead pin by this flow process, also satisfied lubricating between crosshead crawler shoe and the crosshead slideway, and the lubrication channel of this programme is a multi-path, and other path appoints the corresponding friction pair of right energy arrival guarantee lubricating requirement in the time of a certain blocked path.This structure is very simple, is easy to realize that cost is low.
Described oil storage tank sidewall and described crosshead pin cylindrical intersection form fillet; The sidewall of described crawler shoe oil storage tank and the intersection of upper surface form fillet.
One end face of described crosshead pin has the technology groove that is communicated with second oil duct with first oil duct, and is provided with the plug screw at first oil duct with the termination that is communicated with of second oil duct.
Described crosshead crawler shoe symmetric arrangement.
The diameter of described first oil duct, second oil duct, second oil duct and second oil duct is φ 12～φ 14, and the wide of described oil storage tank is 15～18mm, is 2.5～3.5mm deeply.
The diameter of preferred described first oil duct, second oil duct, second oil duct and second oil duct is φ 13, and the wide of described oil storage tank is 16mm, is 3mm deeply.
Described its width of crawler shoe oil storage tank is 10～14mm, and the degree of depth is 4～6mm, and length is the crosshead move distance sum that makes a round trip; Described its width of crosshead oil duct equates that with described crawler shoe oil storage tank width the degree of depth is 1.5 times of the described crawler shoe oil storage tank degree of depth, and the diameter of described intercommunicating pore equates with described crawler shoe oil storage tank width; The diameter of described pin-and-hole oil duct equates with the width of described crosshead oil duct.
Preferred described its width of crawler shoe oil storage tank is 12mm, and the degree of depth is 5mm, and length is the crosshead move distance sum that makes a round trip; Described its width of crosshead oil duct equates that with described crawler shoe oil storage tank width the degree of depth is 1.5 times of the described crawler shoe oil storage tank degree of depth, and the diameter of described intercommunicating pore equates with described crawler shoe oil storage tank width; The diameter of described pin-and-hole oil duct equates the pin-and-hole oil duct with the width of described crosshead oil duct.
Beneficial effect: the utility model is simple in structure, the oil passage of multi-path, make lubricant oil can fully reach between crawler shoe and the crosshead slideway and between crosshead pin and the copper sheathing, make relevant friction pair can obtain sufficient lubrication, improve the working life of related components.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 the utility model overall pattern;
Fig. 2 is the D-D sectional view of Fig. 1;
Fig. 3 is the C-C sectional view of Fig. 2.
Embodiment
As Fig. 1,2, shown in 3: a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for, comprise crosshead 1, crosshead pin 2, described crosshead pin 2 inserts in the pin-and-hole of described crosshead 1, described crosshead 1 outer surface is connected with two crosshead crawler shoe 1a, the internal surface of described crosshead crawler shoe 1a contacts with the outer surface of described crosshead 1, described crosshead crawler shoe 1a outer surface has crawler shoe oil storage tank 1b, described crosshead 1 outer surface has crosshead oil duct 1c, described crawler shoe oil storage tank 1b goes up the intercommunicating pore 1d that is provided with crosshead oil duct 1c by crosshead crawler shoe 1a and is communicated with, and the crosshead 1 that is positioned at described crosshead oil duct 1c two has pin-and-hole oil duct 1e; Have the first oil duct 2a and the second oil duct 2b vertically in described crosshead pin 2 inside, the described first oil duct 2a and the second oil duct 2b two ends radially have oil inlet passage 2c, described first oil duct 2a and second oil duct 2b middle part radially have oil discharge passage 2d, and described oil discharge passage 2d is communicated with the oil storage tank 2e that described crosshead pin 1 outer surface is opened; Wherein, described pin-and-hole oil duct 1e is communicated with its corresponding oil inlet passage 2c.
Described oil storage tank 2e sidewall and described crosshead pin 2 cylindrical intersections form fillet; The sidewall of described crawler shoe oil storage tank 1b and the intersection of upper surface form fillet.
One end face of described crosshead pin 2 has the technology groove 2f that is communicated with the second oil duct 2b with the first oil duct 2a, and is provided with plug screw 2g at the first oil duct 2a with the termination that is communicated with of the second oil duct 2b.
Described crosshead crawler shoe 1a symmetric arrangement.
Described oil storage tank 2e sidewall and described crosshead pin 2 cylindrical intersections form the fillet of 1mm≤R≤1.5mm; The sidewall of described crawler shoe oil storage tank 1b and the intersection of upper surface form the fillet of 1mm≤R≤1.5mm.
The diameter of the described first oil duct 2a, the second oil duct 2b, the second oil duct 2c and the second oil duct 2d is φ 12～φ 14, and the wide of described oil storage tank 2e is 15～18mm, is 2.5～3.5mm deeply.
The diameter of the described first oil duct 2a, the second oil duct 2b, the second oil duct 2c and the second oil duct 2d is φ 13, and the wide of described oil storage tank 2e is 16mm, is 3mm deeply.
Described its width of crawler shoe oil storage tank 1b is 10～14mm, and the degree of depth is 4～6mm, and length is the crosshead move distance sum that makes a round trip; Described its width of crosshead oil duct 1c equates that with described crawler shoe oil storage tank 1b width the degree of depth is 1.5 times of the described crawler shoe oil storage tank 1b degree of depth, and the diameter of described intercommunicating pore 1d equates with described crawler shoe oil storage tank 1b width; The diameter of described pin-and-hole oil duct 1e equates with the width of described crosshead oil duct 1c.
Described its width of crawler shoe oil storage tank 1b is 12mm, and the degree of depth is 5mm, and length is the crosshead move distance sum that makes a round trip; Described its width of crosshead oil duct 1c equates that with described crawler shoe oil storage tank 1b width the degree of depth is 1.5 times of the described crawler shoe oil storage tank 1b degree of depth, and the diameter of described intercommunicating pore 1d equates with described crawler shoe oil storage tank 1b width; The diameter of described pin-and-hole oil duct 1e equates pin-and-hole oil duct 1b with the width of described crosshead oil duct 1c.
Concretely: the crosshead crawler shoe is arranged on the crosshead cylindrical, crosshead crawler shoe and crosshead link together by several screws 7, the interior circle of crosshead crawler shoe is contacted with the crosshead cylindrical, crosshead crawler shoe end has limited step, and described limited step inserts in the restraining groove of described crosshead block and carries out axially locating.The material of crosshead crawler shoe is ZCuAl10Fe3, and specific pressure allowable [p]=25MPa that material bears and specific pressure allowable are used speed product [pv]=30N/mm2.m/s with needing, and this just can be that drilling pump bears more fluid pressure.When adopting the crosshead crawler shoe to also have a benefit to be maintenance or overhaul, do not need to change crosshead, only need to change the crosshead crawler shoe and just can.
The sidewall of described crawler shoe oil storage tank and the intersection of upper surface form the rounding of 1mm≤R≤1.5mm, prevent that the crosshead crawler shoe from can not scratch crosshead slideway friction face during to-and-fro motion in the crosshead slideway.
The crosshead parts, the two ends crosshead pin-and-hole of the installation crosshead pin of crosshead is designed to cylindrical bore, and processability is good especially.
Adopt this structure connecting rod small-end bearing not design oil groove at main stress surface, oil groove is designed at less important stress surface, changed traditional method that also designs oil groove at the main stress surface of connecting rod small-end bearing, stress surface is increased, specific pressure reduces, the working life that helps improving connecting rod small-end bearing and crosshead pin.
Adopt said structure lubricant oil at first to enter the crawler shoe oil storage tank 1b--intercommunicating pore 1d--crosshead oil duct 1c--pin-and-hole oil duct 1e--oil inlet passage 2c--first oil duct 2a or the second oil duct 2b--oil discharge passage 2d--oil storage tank 2e from the oil inlet hole 6a of crosshead slideway, promptly satisfied lubricating between copper sheathing 5 and the crosshead pin by this flow process, also satisfied lubricating between crosshead crawler shoe and the crosshead slideway 6, and the lubrication channel of this programme is a multi-path, and other path appoints the corresponding friction pair of right energy arrival guarantee lubricating requirement in the time of a certain blocked path.Lubricating between solution connecting rod small end connecting rod small-end bearing well and the crosshead pin friction pair solves lubricating between crosshead and the crosshead slideway friction pair well, makes lubricating reliably between two friction pairs.
Claims (9)
1. one kind is used for the crosshead of drilling pump and the lubricating structure of crosshead pin, comprise crosshead (1), crosshead pin (2), described crosshead pin (2) inserts in the pin-and-hole of described crosshead (1), described crosshead (1) outer surface is connected with two crosshead crawler shoes (1a), the internal surface of described crosshead crawler shoe (1a) contacts with the outer surface of described crosshead (1), it is characterized in that: described crosshead crawler shoe (1a) outer surface has crawler shoe oil storage tank (1b), described crosshead (1) outer surface has crosshead oil duct (1c), described crawler shoe oil storage tank (1b) is gone up the intercommunicating pore (1d) that is provided with crosshead oil duct (1c) by crosshead crawler shoe (1a) and is communicated with, and the crosshead (1) that is positioned at described crosshead oil duct (1c) two has pin-and-hole oil duct (1e); Have first oil duct (2a) and second oil duct (2b) vertically in described crosshead pin (2) inside, described first oil duct (2a) radially has oil inlet passage (2c) with second oil duct (2b) two ends, described first oil duct (2a) and second oil duct (2b) middle part radially have oil discharge passage (2d), and described oil discharge passage (2d) is communicated with the oil storage tank (2e) that described crosshead pin (1) outer surface is opened; Wherein, described pin-and-hole oil duct (1e) is communicated with its corresponding oil inlet passage (2c).
2. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 1 is characterized in that: described oil storage tank (2e) sidewall and described crosshead pin (2) cylindrical intersection form fillet; The sidewall of described crawler shoe oil storage tank (1b) and the intersection of upper surface form fillet.
3. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 1 and 2, it is characterized in that: an end face of described crosshead pin (2) has the technology groove (2f) that is communicated with second oil duct (2b) with first oil duct (2a), and is provided with plug screw (2g) at first oil duct (2a) with the termination that is communicated with of second oil duct (2b).
4. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 1 is characterized in that: described crosshead crawler shoe (1a) symmetric arrangement.
5. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 2 is characterized in that: described oil storage tank (2e) sidewall and described crosshead pin (2) cylindrical intersection form the fillet of 1mm≤R≤1.5mm; The sidewall of described crawler shoe oil storage tank (1b) and the intersection of upper surface form the fillet of 1mm≤R≤1.5mm.
6. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 1, it is characterized in that: the diameter of described first oil duct (2a), second oil duct (2b), second oil duct (2c) and second oil duct (2d) is φ 12～φ 14, the wide of described oil storage tank (2e) is 15～18mm, is 2.5～3.5mm deeply.
7. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 6, it is characterized in that: the diameter of described first oil duct (2a), second oil duct (2b), second oil duct (2c) and second oil duct (2d) is φ 13, the wide of described oil storage tank (2e) is 16mm, is 3mm deeply.
8. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 1, it is characterized in that: its width of described crawler shoe oil storage tank (1b) is 10～14mm, the degree of depth is 4～6mm, and length is the crosshead move distance sum that makes a round trip; Its width of described crosshead oil duct (1c) equates that with described crawler shoe oil storage tank (1b) width the degree of depth is 1.5 times of described crawler shoe oil storage tank (1b) degree of depth, and the diameter of described intercommunicating pore (1d) equates with described crawler shoe oil storage tank (1b) width; The diameter of described pin-and-hole oil duct (1e) equates with the width of described crosshead oil duct (1c).
9. a kind of crosshead of drilling pump and lubricating structure of crosshead pin of being used for according to claim 8, it is characterized in that: its width of described crawler shoe oil storage tank (1b) is 12mm, and the degree of depth is 5mm, length is the crosshead move distance sum that makes a round trip; Its width of described crosshead oil duct (1c) equates that with described crawler shoe oil storage tank (1b) width the degree of depth is 1.5 times of described crawler shoe oil storage tank (1b) degree of depth, and the diameter of described intercommunicating pore (1d) equates with described crawler shoe oil storage tank (1b) width; The diameter of described pin-and-hole oil duct (1e) equates pin-and-hole oil duct (1b) with the width of described crosshead oil duct (1c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205818752U CN201827067U (en) | 2010-10-29 | 2010-10-29 | Lubricating structure of crosshead and crosshead pin for drill pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205818752U CN201827067U (en) | 2010-10-29 | 2010-10-29 | Lubricating structure of crosshead and crosshead pin for drill pump |
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| Publication Number | Publication Date |
|---|---|
| CN201827067U true CN201827067U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205818752U Expired - Lifetime CN201827067U (en) | 2010-10-29 | 2010-10-29 | Lubricating structure of crosshead and crosshead pin for drill pump |
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| CN (1) | CN201827067U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143106A1 (en) * | 2012-03-30 | 2013-10-03 | Sichuan Honghua Petroleum Equipment Co., Ltd. | A guard for controlling material dispersion in a drilling pump |
| WO2013163787A1 (en) * | 2012-04-29 | 2013-11-07 | 四川宏华石油设备有限公司 | Lubricating structure for crosshead |
| CN103696940A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Cobalt-based alloy natural gas compressor cross head |
| CN103696945A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Crosshead of natural gas compressor |
| CN106337804A (en) * | 2016-11-08 | 2017-01-18 | 四川宏华石油设备有限公司 | Novel Cross Head Device for Fracturing Pump |
| CN108757713A (en) * | 2018-07-16 | 2018-11-06 | 蚌埠市昊源压缩机制造有限公司 | A kind of compressor crosshead |
| CN111140589A (en) * | 2019-12-29 | 2020-05-12 | 陕西航天动力高科技股份有限公司 | Lubricating structure of crosshead assembly for diaphragm pump |
-
2010
- 2010-10-29 CN CN2010205818752U patent/CN201827067U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013143106A1 (en) * | 2012-03-30 | 2013-10-03 | Sichuan Honghua Petroleum Equipment Co., Ltd. | A guard for controlling material dispersion in a drilling pump |
| WO2013163787A1 (en) * | 2012-04-29 | 2013-11-07 | 四川宏华石油设备有限公司 | Lubricating structure for crosshead |
| CN103696940A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Cobalt-based alloy natural gas compressor cross head |
| CN103696945A (en) * | 2013-12-17 | 2014-04-02 | 成都展望能源机械有限公司 | Crosshead of natural gas compressor |
| CN103696940B (en) * | 2013-12-17 | 2016-02-03 | 成都展望能源机械有限公司 | Cobalt base alloy crosshead of natural gas compressor |
| CN106337804A (en) * | 2016-11-08 | 2017-01-18 | 四川宏华石油设备有限公司 | Novel Cross Head Device for Fracturing Pump |
| CN106337804B (en) * | 2016-11-08 | 2018-11-23 | 四川宏华石油设备有限公司 | A kind of fracturing pump crosshead device |
| CN108757713A (en) * | 2018-07-16 | 2018-11-06 | 蚌埠市昊源压缩机制造有限公司 | A kind of compressor crosshead |
| CN111140589A (en) * | 2019-12-29 | 2020-05-12 | 陕西航天动力高科技股份有限公司 | Lubricating structure of crosshead assembly for diaphragm pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |