CN201090387Y - Three-cylinder single-acting drill pump crankshaft - Google Patents
Three-cylinder single-acting drill pump crankshaft Download PDFInfo
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- CN201090387Y CN201090387Y CNU2007200193230U CN200720019323U CN201090387Y CN 201090387 Y CN201090387 Y CN 201090387Y CN U2007200193230 U CNU2007200193230 U CN U2007200193230U CN 200720019323 U CN200720019323 U CN 200720019323U CN 201090387 Y CN201090387 Y CN 201090387Y
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- crankshaft
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Abstract
The utility model discloses a three-cylinder single-action drilling pump crankshaft, which is mainly provided with a support shaft neck 7 and a support shaft neck 8 at two ends, and crankshaft necks 1, 2 and 3 with three space angles (120 degrees), a large-tooth circle connection disc 4 is arranged at close to one side of the crankshaft neck 3 and the support shaft neck 8. The utility model is characterized in that: the large-tooth circle connection disc 4 is provided with a group of fixed connection holes 5 and precision positioning holes 6 at close to outer circumference that are arranged alternately and uniformly. The utility model has the advantages that: compared with the prior structure of straight shaft plus eccentric block, the structure only needs to machine the crankshaft during manufacture process, so as to basically realize that full surface processing is finished by one-time positioning assembly, machining time is saved by 20 percent, machining precision is enhanced by one or two grades, assembling process is simplified, the assembly efficiency of the crankshaft and piston rod can be enhanced by about 15 percent, moreover the precision between the shaft lines of both large-tooth circle connection disc 4 and the crankshaft is enhanced by about 15 percent.
Description
Technical field
The utility model belongs to a kind of drilling pump device, and definite saying is a kind of crankshaft arrangement of three cylinder single-acting drilling pumps.
Background technique
For the drilling pump that extensively adopts at present, the use amount of SL3NB series triplex single action pump is very big.The plunger reciprocating mechanism of this kind pump adopts d-axis to add the structural type that eccentric mass installs bearing again additional, because the power of pump (is generally greatly; 900 to 1600 horsepowers), the processing and assembling precision prescribed is higher, the component processing and assembling required precision complexity in the processing and assembling process, and in use, except the normal damage of pump head, the rate of fault of crankshaft-link rod parts is always than higher.In order to address this problem, designer of the present utility model has done research in earnest, has proposed goal of the invention of the present utility model.
Summary of the invention
Goal of the invention of the present utility model is many in order to overcome the parts that structure that present domestic and international widely used SL3NB drilling pump d-axis adds eccentric mass exists, defective that the processing and assembling required precision is high and complicated and not enough putting forward.A kind of three cylinder single-acting drilling pump bent axles promptly are provided.
Technical solution of the present utility model is to realize like this, this three cylinders single-acting drilling pump bent axle, the crankshaft journal [1] and [2] and [3] that mainly have bearing journal [7] and bearing journal [8] and three space angles distribution 120 degree at two ends, have a bull gear land [4] in a side, it is characterized in that going up close excircle at bull gear land [4] has one group of fixedly connected hole [5] of arranging uniformly at intervals and precision positioning hole [6] near crankshaft journal [3] and support axle journal [8].
Beneficial technical effects of the present utility model is: compare with adopting d-axis to add eccentric fast structure in the past, there has not been the independent processing of eccentric mass and bull gear land, this structure only needs part of machining crankshafts in manufacture process, the basic one-time positioning clamping of realizing just can be finished whole surface Machining, save process time 20%, improve 1 to 2 grade of machining accuracy, simplified assembly process, it is about 15% that the efficiency of assembling of bent axle and plunger rod can improve, and the precision between the axis of bull gear land [4] and bent axle improves about 5%.Its advantage is conspicuous.
Description of drawings
Accompanying drawing 1 is a structural front view of the present utility model, and accompanying drawing 2 is left views of accompanying drawing 1.Sequence number in the accompanying drawings is described as: 1, crankshaft journal, 2, crankshaft journal, 3, crankshaft journal, 4, the gearwheel land, 5, attachment hole, 6, the precision positioning hole, 7, bearing journal, 8, bearing journal.
Embodiment
Below in conjunction with the embodiment who provides in the accompanying drawing, structure of the present utility model and use are elaborated.With reference to accompanying drawing, be the example explanation with the SL3NB-1300 drilling pump.This bent axle adopts cast steel material one-step casting blank, machining moulding then.The bearing journal [7] and the bearing journal [8] that mainly have two ends, these two axle journals by Bearing Installation on the pump case of drilling pump.The crankshaft journal [1] and [2] and [3] that have three space angles distribution 120 degree on the bent axle, these three crankshaft journals are by bearing and plunger connecting rod assembling.Have a bull gear land [4] in a side, go up close excircle at bull gear land [4] and have one group of fixedly connected hole [5] of arranging uniformly at intervals and precision positioning hole [6] near crankshaft journal [3] and support axle journal [8].As shown in Figure 2, be 8 fixedly connected holes and 8 precision positioning holes, fixedly connected hole and positioning hole dispose uniformly at intervals, that is: arrange according to the order in another fixedly connected hole, a precision positioning hole, a fixedly connected hole.Such structure one is to improve the accuracy of locating accuracy and location, the 2nd, improved the reliability that connects main gear rim.In order to improve the Location accuracy of positioning hole [6], adding man-hour, 8 precision positioning holes [6] require fine finishing to handle, and are preferably in after the boring increase operation that reams together.The symbol that is indicated in the sequence number in the accompanying drawing 2 [6] is the indication of fraising (or other fine finishing).The installation process of crankshaft-link rod parts is fairly simple, to install bearing on crankshaft journal [1], [2], [3], and press the good positioning ring of assembly technology claimed apparatus, spacing snap ring etc. must component, refill and prepare plunger connecting rod, requirement assembling bull gear according to positioning hole, on support axle journal [7] and [8], also assemble bearing then, the crankshaft-link rod assembly that assembles is lifted the drilling pump housing, carry out the assembling of next procedure.A d-axis in past add three independently eccentric mass add an independently structure of bull gear fixed tray, the compare structure of integral shaft of the present utility model, no matter the complexity that its processing technology or its assembly technology and processing, assembly precision require is apparent, so this structure has been simplified the complexity of processing and assembling greatly.Above-mentioned bearing generally should be rolling bearing.
Claims (1)
1. cylinder single-acting drilling pump bent axle, the crankshaft journal [1] and [2] and [3] that mainly have bearing journal [7] and bearing journal [8] and three space angles distribution 120 degree at two ends, have a bull gear land [4] in a side, it is characterized in that going up close excircle at bull gear land [4] has one group of fixedly connected hole [5] of arranging uniformly at intervals and precision positioning hole [6] near crankshaft journal [3] and support axle journal [8].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200193230U CN201090387Y (en) | 2007-03-13 | 2007-03-13 | Three-cylinder single-acting drill pump crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200193230U CN201090387Y (en) | 2007-03-13 | 2007-03-13 | Three-cylinder single-acting drill pump crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090387Y true CN201090387Y (en) | 2008-07-23 |
Family
ID=39862147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200193230U Expired - Lifetime CN201090387Y (en) | 2007-03-13 | 2007-03-13 | Three-cylinder single-acting drill pump crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090387Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089679A (en) * | 2016-08-04 | 2016-11-09 | 兰州兰石集团有限公司 | The eccentric Double gear-ring bent axle of three grades of slush pump |
| CN112639306A (en) * | 2018-10-16 | 2021-04-09 | 宝马股份公司 | Crankshaft |
-
2007
- 2007-03-13 CN CNU2007200193230U patent/CN201090387Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089679A (en) * | 2016-08-04 | 2016-11-09 | 兰州兰石集团有限公司 | The eccentric Double gear-ring bent axle of three grades of slush pump |
| CN106089679B (en) * | 2016-08-04 | 2018-04-03 | 兰州兰石石油装备工程股份有限公司 | Slush pump three-level bias Double gear-ring bent axle |
| CN112639306A (en) * | 2018-10-16 | 2021-04-09 | 宝马股份公司 | Crankshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Rongli Petroleum Machinery Co., Ltd. Assignor: Wang Jianjun Contract record no.: 2010370000500 Denomination of utility model: Three-cylinder single-acting drill pump crankshaft Granted publication date: 20080723 License type: Exclusive License Record date: 20100906 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |
|
| CX01 | Expiry of patent term |