CN104564653A - Plunger reciprocating pump with built-in pressure lubricating oil passage - Google Patents
Plunger reciprocating pump with built-in pressure lubricating oil passage Download PDFInfo
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- CN104564653A CN104564653A CN201410844459.XA CN201410844459A CN104564653A CN 104564653 A CN104564653 A CN 104564653A CN 201410844459 A CN201410844459 A CN 201410844459A CN 104564653 A CN104564653 A CN 104564653A
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- connecting rod
- crosshead
- reciprocating pump
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- plunger reciprocating
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- Reciprocating Pumps (AREA)
Abstract
The invention relates to a plunger reciprocating pump with a built-in pressure lubricating oil passage. The plunger reciprocating pump comprises a pump body, a small bush of a connecting rod, the connecting rod, a large bush of the connecting rod and a cross head. An oil pool for storing lubricating oil is arranged at the bottom of the pump body, the small bush of the connecting rod, the connecting rod and the large bush of the connecting rod are sequentially connected with one another, an oil hole of a rod body is formed in the connecting rod, the cross head is arranged in a cross head slide rail, a cross head pin is arranged at an end of the cross head slide rail and is communicated with the small bush of the connecting rod, and the lubricating oil passage is formed by the cross head slide rail, the cross head pin, the small bush of the connecting rod, the connecting rod and the large bush of the connecting rod. Compared with the prior art, the plunger reciprocating pump has the advantages that the lubricating oil can be delivered to various lubricated points by the aid of internal structural designs of the plunger reciprocating pump, accordingly, the various lubricated points can be reliably lubricated, and the integral plunger reciprocating pump is quite simple in appearance.
Description
Technical field
The present invention relates to a kind of reciprocating pump, especially relate to a kind of plunger reciprocating pump of built-in pressure lubrication oil circuit.
Background technique
All motion vice division chiefs having rotation and relative sliding relatively in plunger reciprocating pump, all need to lubricate, its object is to: reduce friction, improve mechanical efficiency, reduce power consumption; Reduce wearing and tearing, extend the working life of each kinematic pair; Cooling kinematic pair working surface, take away frictional heat, keep kinematic pair working surface gap, prevent overheated and cause killing or burning.Therefore the lubricating structure of reciprocating pump is absolutely necessary supplementary structure, conventional is splash lubrication and external pressure lubrication, so-called splash lubrication utilizes the gear of drive end inside or the rotary motion of connecting rod the lubricant oil in the pump housing to be got rid of formation oil droplet or mist of oil lubricates, and is generally applicable to little type; External pressure lubrication is the oil pump, the cooler and pipeline etc. that utilize a set of tyre, inject by pipeline the friction pair needing lubrication by after the lubricant oil suction in the pump housing also pressure-raising, cooling by oil pump, it lubricates reliable, but complex structure, floor space is large, is generally applicable to large type.
Chinese patent CN101994688A discloses plunger reciprocating pump, comprise the pump housing, the plunger of sliding fit in pump housing plunger hole, be arranged on the suction valve group in the pump housing and expulsion valve group, pump chamber is formed in the middle of the pump housing inherent plunger, suction valve group and drain group, the pump housing is provided with the adjustment column plug assembly keeping same center line with plunger, this adjustment column plug assembly comprises: be arranged on the sealed letter body on the pump housing, and the center of sealing letter body is the hole of a band valve seat; Black box and pilot seal cover are installed in hole; Adjustment plunger, its outer circle wall is arranged on sealing and sets up and in seal guide sleeve, and it is interior and coordinate with the valve seat at sealed letter Ti Shang center that the valve face of this adjustment plunger front end is placed in pump chamber; Screw rod, the front end of this screw rod with boss, middle part be cylindrical body, afterbody has outside thread; Spring and adjustment handle, although this reciprocating pump regulation range is large, degree of regulation is high, its greasy property is still not good.
Summary of the invention
Object of the present invention is exactly provide a kind of plunger reciprocating pump lubricating reliable, that outward appearance is clean and tidy built-in pressure lubrication oil circuit to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A plunger reciprocating pump for built-in pressure lubrication oil circuit, comprises the pump housing, and arrange oil sump bottom the pump housing and store lubricant oil, little watt of the connecting rod connected successively, connecting rod, large watt of connecting rod, described connecting rod offers shaft oilhole,
Also comprise crosshead, this crosshead is arranged in crosshead slideway, the end of described crosshead slideway arranges crosshead pin, and this crosshead pin is communicated with little watt of connecting rod, and described crosshead slideway, crosshead pin, little watt of connecting rod, connecting rod, large watt of connecting rod form lubricating oil path.
In described crosshead pin, axial oilhole and radial direction oil hole are set.
One-way valve is provided with between described oil sump and crosshead pin.
One-way valve is provided with between described connecting rod and large watt of connecting rod.
The sidepiece of described crosshead slideway is also provided with high speed shaft bearing.
Described crosshead slideway is provided with relief valve near high speed shaft bearing side.
Described crosshead slideway is cylindrical-shaped structure.
Described crosshead is the step type crosshead horizontally slipped in crosshead slideway.
Compared with prior art, the present invention relies on inner structural design that lubricant oil is transported to each lubricating point, make lubrication extremely reliable, and the outward appearance of complete machine is very succinct.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation at crosshead slideway place;
Fig. 3 is the structural representation of crosshead pin.
In figure, 1-connecting rod, 2-high speed shaft bearing, 3-shaft oilhole, 4-relief valve, 5-crosshead pin, 51-axial oilhole, 52-radial direction oil hole, the 6-pump housing, 7-bent axle, large watt of 8-connecting rod, 9-oil sump, 10-first one-way valve, 11-second one-way valve, little watt of 12-connecting rod, 13-crosshead, 14-crosshead slideway.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
A kind of plunger reciprocating pump of built-in pressure lubrication oil circuit, its structure as shown in Figure 1, comprise the pump housing 6, oil sump is set in the bottom of the pump housing 6 and stores lubricant oil, little watt 12, the connecting rod connected successively in the pump housing, connecting rod 1, large watt 8, connecting rod, connecting rod 1 offers shaft oilhole 3, and connecting rod 1 is also connected with bent axle 7.In addition, also comprise the crosshead 13 of staircase structural model, this crosshead 13 to be arranged in crosshead slideway 14 as shown in Figure 2, and crosshead slideway 14 is cylindrical-shaped structure, and crosshead 13 can horizontally slip in crosshead slideway 14.The end of crosshead slideway 14 arranges crosshead pin 5, and this crosshead pin 5 is communicated with for little watt 12 with connecting rod, and the structure of crosshead pin 5 as shown in Figure 3, inside arranges axial oilhole 51 and radial direction oil hole 52.Between oil sump 9 and crosshead pin 5, be provided with the second one-way valve 11, be provided with the first one-way valve 10 between connecting rod 1 and large watt 8, connecting rod, crosshead slideway 14, crosshead pin 5, little watt 12, connecting rod, connecting rod 1, connecting rod form lubricating oil path for large watt 8.In addition, the sidepiece of crosshead slideway 14 is also provided with high speed shaft bearing 2, and crosshead slideway 14 is provided with relief valve 4 near high speed shaft bearing 2 side.
The present invention in use, crosshead 13 is the cylindrical of size step type, reciprocating linear motion is made in crosshead slideway 14, when crosshead 13 turns right operation, space between crosshead 13 and crosshead slideway 14 increases, the pressure in cavity is caused to reduce, when the pressure in cavity is lower than pressure in oil sump 9, lubricant oil in oil sump 9 just enters crosshead slideway 14 road by the second one-way valve 11, when crosshead 13 is run toward left side, cavity reduces, second one-way valve 11 shuts, pressure increase, first lubricant oil with pressure lubricate reciprocating crosshead 13, secondly lubricant oil is entered little watt 12, connecting rod by the axial oilhole 51 of crosshead pin 5 and radial direction oil hole 52 and is lubricated again, the shaft oilhole 3 offered on connecting rod 1 again and the first one-way valve 10 enter large watt 8, connecting rod and are lubricated, afterwards lubricant oil flow back to the pump housing 6 with circulation re-use, namely by oil sump 9 → the second one-way valve 11 → crosshead slideway 14 → crosshead pin, 5 → connecting rod little watt of 12 → the first one-way valve 10 → connecting rod large watt of 8 → pump housing 6, constitute a main lubrication channel, the friction pair lubricated during this has crosshead 13 and crosshead slideway 14, little watt 12, connecting rod and crosshead pin 5, large watt 8, connecting rod and bent axle 7.The lubricant oil arriving crosshead slideway 14 also carries out jet lubrication by the high speed shaft bearing 2 of relief valve 4 pairs of both sides on crosshead slideway 14 top, is lubricated by rational oilhole to lower velocity shaft bearing simultaneously.Along with the to-and-fro motion gone round and begun again of crosshead 13, lubricant oil with pressure is just sent to the place needing lubrication again and again.Thisly rely on inner structural design that lubricant oil is transported to each lubricating point, make lubrication extremely reliable, and the outward appearance of complete machine is very succinct.
Claims (8)
1. a plunger reciprocating pump for built-in pressure lubrication oil circuit, comprises the pump housing, and arrange oil sump bottom the pump housing and store lubricant oil, little watt of the connecting rod connected successively, connecting rod, large watt of connecting rod, described connecting rod offers shaft oilhole,
It is characterized in that, also comprise crosshead, this crosshead is arranged in crosshead slideway, and the end of described crosshead slideway arranges crosshead pin, this crosshead pin is communicated with little watt of connecting rod, and described crosshead slideway, crosshead pin, little watt of connecting rod, connecting rod, large watt of connecting rod form lubricating oil path.
2. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1, is characterized in that, arrange axial oilhole and radial direction oil hole in described crosshead pin.
3. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1, is characterized in that, be provided with one-way valve between described oil sump and crosshead pin.
4. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1, is characterized in that, be provided with one-way valve between described connecting rod and large watt of connecting rod.
5. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1, it is characterized in that, the sidepiece of described crosshead slideway is also provided with high speed shaft bearing.
6. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 5, it is characterized in that, described crosshead slideway is provided with relief valve near high speed shaft bearing side.
7. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1, it is characterized in that, described crosshead slideway is cylindrical-shaped structure.
8. the plunger reciprocating pump of a kind of built-in pressure lubrication oil circuit according to claim 1 or 7, is characterized in that, described crosshead is the step type crosshead horizontally slipped in crosshead slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844459.XA CN104564653A (en) | 2014-12-30 | 2014-12-30 | Plunger reciprocating pump with built-in pressure lubricating oil passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844459.XA CN104564653A (en) | 2014-12-30 | 2014-12-30 | Plunger reciprocating pump with built-in pressure lubricating oil passage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564653A true CN104564653A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410844459.XA Pending CN104564653A (en) | 2014-12-30 | 2014-12-30 | Plunger reciprocating pump with built-in pressure lubricating oil passage |
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| CN (1) | CN104564653A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386954A (en) * | 2015-11-24 | 2016-03-09 | 杭州台连低温设备有限公司 | High-pressure liquid nitrogen pump |
| WO2018036442A1 (en) * | 2016-08-24 | 2018-03-01 | 宁波迪诺机械有限公司 | Sealing ring lubrication structure in coating transfer device |
-
2014
- 2014-12-30 CN CN201410844459.XA patent/CN104564653A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386954A (en) * | 2015-11-24 | 2016-03-09 | 杭州台连低温设备有限公司 | High-pressure liquid nitrogen pump |
| WO2018036442A1 (en) * | 2016-08-24 | 2018-03-01 | 宁波迪诺机械有限公司 | Sealing ring lubrication structure in coating transfer device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |