CN202250788U - Power end of reciprocating pump - Google Patents
Power end of reciprocating pump Download PDFInfo
- Publication number
- CN202250788U CN202250788U CN2011204079777U CN201120407977U CN202250788U CN 202250788 U CN202250788 U CN 202250788U CN 2011204079777 U CN2011204079777 U CN 2011204079777U CN 201120407977 U CN201120407977 U CN 201120407977U CN 202250788 U CN202250788 U CN 202250788U
- Authority
- CN
- China
- Prior art keywords
- box body
- transmission box
- cylinder sleeve
- crosshead
- power end
- 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 - Lifetime
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- Reciprocating Pumps (AREA)
Abstract
A power end of a reciprocating pump comprises a transmission box body and a bracket. A cylinder sleeve is installed in a crosshead hole of the transmission box body, the transmission box body and the bracket are vertically separated to be two independent portions which are detachably connected with each other, and a vertical separating line of the transmission box body and the bracket is located on one side of the cylinder sleeve of the transmission box body. The transmission box body is divided into an upper transmission box body and a lower transmission box body which are detachably connected with each other, and the cylinder sleeve is an integral type crosshead cylinder sleeve. By separating the bracket from the transmission box body, the length of the transmission box body is shortened by over one-third, the transmission box body and the bracket are independent to each other, and processing difficulty and cost are reduced. The horizontal middle-dividing type transmission box body is adopted. When parts inside the power end are assembled, the upper transmission box body of the horizontal middle-dividing type transmission box body is lifted away, dependence on manpower is reduced, assembly and disassembly are extremely convenient, and the problem of assembling and maintaining difficulties is solved. The integral type crosshead cylinder sleeve is additionally arranged in the crosshead hole, the whole surface of a crosshead is contacted with the cylinder sleeve, pressure bearing area is increased, and specific pressure is reduced.
Description
Technical field
The utility model relates to greatly, the technological improvement of super sized type reciprocating pump power end, belongs to the pump transmission technique field.
Background technique
Present horizontal multi cylinderpump; The transmission case body of its power end adopts usually along the crankshaft bearing hole deviation and opens or erect open architecture; Such transmission case body causes the lifting position and the mounting point of bent axle, connecting rod and crosshead inconsistent, and in middle-size and small-size reciprocating pump, assembling and service parts (mainly be bent axle, connecting rod and the cross first-class) weight inner because of its transmission case body are lighter; It is horizontally mounted, not difficult.But along with development of modern industry needs, promote reciprocating pump and develop towards maximization and large direction, the part profile of such reciprocating pump power end inside is huge, and very heavy, and bent axle weighs several tons, and connecting rod and crosshead weigh hundreds of kilograms.Tiltedly open or perpendicular open type transmission case body if adopt again; Because of the lifting position and the mounting point of bent axle, connecting rod and crosshead inconsistent; This makes the installation of pump power end and keeps in repair extremely inconvenient; The installation and maintenance of this type pump power end have just become distinct issues, and it is very difficult to lean on old way to operate, and this has a strong impact on the installation and the maintenance of pump power end.
In addition, such is big, the transmission case body size of super sized type reciprocating pump very big (the monnolithic case size reaches 4500mm (length) * 2400mm (wide) * 1900mm (height)), and weight reaches 20 tons; Six faces all need be processed, and each hole and face also have Geometrical Tolerance Principle, if whole processing must very big process equipment; This will cause processing charges very expensive; When assembling and maintenance, need corresponding big lifting appliance, therefore also just increased the manufacturing and the maintenance cost of pump widely.Simultaneously, at present the cross-head guide part of magna pump generally adopts is two cylinder sleeves of forming of guiding tile independently up and down, and there is various problems in this structure: the one, and oil pressure forms difficulty up and down watt and between the crosshead, causes lubricated bad.The 2nd, watt fixing trouble up and down, crosshead with watt the gap adjustment complicated, this causes assembling and maintenance difficult, the 3rd, reduced watt the bearing area with crosshead, shortened its working life.
The model utility content
To the problems referred to above that existing technology exists, the purpose of the utility model provides a kind of reciprocating pump power end that can reduce difficulty of processing greatly.
In order to solve the problems of the technologies described above, the utility model reciprocating pump power end comprises transmission case body and carriage, in the crosshead hole of transmission case body cylinder sleeve is installed, and said transmission case body and carriage vertically are split up into two independent parts and removably connect.
The vertical strapping wires of said transmission case body and carriage are positioned at transmission case body cylinder sleeve one side.
Said transmission case body (along crankshaft bearing center line level) is divided into upper gear box body and underdrive casing, and upper gear box body and underdrive casing removably connect.
Said cylinder sleeve is an integrated type crosshead cylinder sleeve.
Compare existing technology, the good effect of the utility model is:
One, passes through carriage and transmission case body split; The shorten length of transmission case body is more than 1/3rd, and transmission case body and carriage are independent, can use little apparatus processing; Locate with selling accurately between them; Like this, size and form and position tolerance after promptly having guaranteed to attach together have also reduced difficulty of processing and cost.
Two, adopt horizontal midsplit type transmission case body; During assembling power end inner body, the upper gear box body of horizontal midsplit type transmission case is hung out, the lifting position of power end inner components is consistent with the mounting point; Can use hanging device directly lifting or assembling; Minimizing makes its dismounting very convenient to the dependence of manpower, solved the problem of assembling, maintenance difficult.
Three, in the crosshead hole, increase a whole crosshead cylinder sleeve, the whole surface of crosshead all contacts with cylinder sleeve, has increased bearing area, reduces specific pressure.Pressure lubrication oil is full of whole crosshead surface, and it is sufficient lubricated that crosshead is obtained at the volley, and these measures have prolonged the working life of crosshead and cylinder sleeve effectively.
The utility model has better technology capability and reliability, maintainability, safety and human factors under the prerequisite that guarantees the power end reliability, solved the above-mentioned deficiency of existing technology, has higher utility.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is done further explain.
As shown in Figure 1, the utility model reciprocating pump power end comprises transmission case body and carriage 3, in the crosshead hole of transmission case body cylinder sleeve 4 is installed, and said transmission case body and carriage 3 vertically are split up into two independent parts and removably connect.Both vertical strapping wires are positioned at transmission case body cylinder sleeve 4 one sides.
In the prior art, transmission case body and carriage length dimension are added up and maximum are reached 4.5 meters, if processing together will need the super sized type process equipment, processing cost is very expensive.Transmission case body and carriage are separated, the length dimension of transmission case body is 3 meters, and the carriage length dimension is 1.5 meters, can use little process equipment, is beneficial to very much processing, cuts down finished cost greatly, and is easy to guarantee machining accuracy at present.
Another improvement of the utility model is transmission case body is divided from the crankshaft bearing central horizontal, is divided into upper gear box body 1 and underdrive casing 2, and upper gear box body 1 removably connects with underdrive casing 2.
During assembling power end inner body, the upper gear box body is hung out, make the lifting position of power end inner components consistent with the mounting point; Refill and join inner body; Inner body is all exposed outside, can use hanging device directly lifting or assembling, reduces the dependence to manpower; Make its dismounting very convenient, overcome the deficiency that traditional vertical subdivision or the big lid of oblique subdivision transmission case exist.To large-scale or mammoth pump is especially outstanding, assembling, maintenance difficult problem have been solved.
The 3rd improvement of the utility model is: the cylinder sleeve of installing in the transmission case body crosshead hole is whole crosshead cylinder sleeve 4.The cylinder sleeve of crosshead adopts integrated type, and whole crosshead cylinder sleeve 4 is extremely fitted with the crosshead surface binding, in be full of pressure lubrication oil, effectively reduce the friction of this kinematic pair.Lubricated between crosshead and its cylinder sleeve is one of important lubricating point of power end, uses the integrated type cylinder sleeve, need not regulate the gap, and help the formation of lubricating oil pressure, increased bearing area, and it is good lubricated that it is obtained, and improved the reliability of pump.
Can find out clearly that from figure these structures are in the connection arrangement relation of power end and the effect of being brought into play.This structure is compared with conventional construction, has obviously strengthened installation and maintenance, manufacturability, and the reliability of use effectively reduces cost.
The foregoing description of the utility model only is to give an example for what explanation the utility model was done, and is not to be the qualification to the mode of execution of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation and changes.Here can't give exhaustive to all mode of executions.Conspicuous variation that every technological scheme that belongs to the utility model is amplified out or change still are in the row of the protection domain of the utility model.
Claims (5)
1. a reciprocating pump power end comprises transmission case body and carriage (3), and cylinder sleeve (4) is installed in the crosshead hole of transmission case body, and it is characterized in that: said transmission case body and carriage vertically are split up into two independent parts and removably connect.
2. reciprocating pump power end according to claim 1 is characterized in that: the vertical strapping wires of said transmission case body and carriage are positioned at transmission case body cylinder sleeve one side.
3. reciprocating pump power end according to claim 1 and 2 is characterized in that: said transmission case body is divided into upper gear box body (1) and underdrive casing (2), and upper gear box body (1) and underdrive casing (2) removably connect.
4. reciprocating pump power end according to claim 3 is characterized in that: said transmission case body is along being divided into upper gear box body (1) and underdrive casing (2) in the crankshaft bearing center line level.
5. reciprocating pump power end according to claim 4 is characterized in that: said cylinder sleeve (4) is an integrated type crosshead cylinder sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079777U CN202250788U (en) | 2011-10-24 | 2011-10-24 | Power end of reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079777U CN202250788U (en) | 2011-10-24 | 2011-10-24 | Power end of reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250788U true CN202250788U (en) | 2012-05-30 |
Family
ID=46112040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204079777U Expired - Lifetime CN202250788U (en) | 2011-10-24 | 2011-10-24 | Power end of reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138864A1 (en) * | 2015-03-03 | 2016-09-09 | 徐州重型机械有限公司 | Cylinder head body, single cylinder bolt system, and crane |
-
2011
- 2011-10-24 CN CN2011204079777U patent/CN202250788U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016138864A1 (en) * | 2015-03-03 | 2016-09-09 | 徐州重型机械有限公司 | Cylinder head body, single cylinder bolt system, and crane |
| US10465725B2 (en) | 2015-03-03 | 2019-11-05 | Xuzhou Heavy Machinery Co., Ltd. | Cylinder head body, single cylinder bolt system and crane |
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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: 20120530 |