CN201412317Y - Plunger pump self oil supply lubrication gearbox - Google Patents
Plunger pump self oil supply lubrication gearbox Download PDFInfo
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- CN201412317Y CN201412317Y CN2009201276422U CN200920127642U CN201412317Y CN 201412317 Y CN201412317 Y CN 201412317Y CN 2009201276422 U CN2009201276422 U CN 2009201276422U CN 200920127642 U CN200920127642 U CN 200920127642U CN 201412317 Y CN201412317 Y CN 201412317Y
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- oil
- transmission case
- connecting rod
- plunger pump
- lubrication
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Abstract
The utility model discloses a plunger pump self oil supply lubrication gearbox which comprises a gearbox body, a crankshaft, a connecting rod, lubricating oil and a lubricating oil way, wherein a crosshead guide sleeve is located on the right side of the crankshaft, and is supported on the bottom board of the gearbox body by a vertical plate, an oil supply hole of an oil storage pool on the upperportion of the crosshead guide sleeve is communicated with an oil groove arranged on the upper portion of a crosshead cylindrical oil way, the oil outlet of the oil groove is located on the upper portion of an oil storage groove on the joint of the small end of the connecting rod and a connecting rod arm, an oil inlet hole in the oil storage groove is communicated with a connecting rod small end bush oil way, and the lower portion of an upper flywheel of the crankshaft immerses in the lubricating oil. Compared with the forced lubrication in the prior art, the plunger pump self oil supply lubrication gearbox does not need a lubricating oil pump, can supply lubricating oil to lubricate by itself through moving parts of the gearbox, has simple structure, low manufacture and use cost and non initial poor lubrication, compared with the traditional splashing lubrication, the amount of lubricating oil is plentiful, the lubricating effect is 5-10 times better than the traditional splashing lubrication, the cooling effect of the gearbox is obviously improved, and the service life of products is long.
Description
Technical field
The utility model relates to a kind of plunger pump transmission case, particularly a kind of plunger pump confession oil lubrication transmission case.
Background technique
The lubrication effect of plunger pump transmission case transmission part is the key that guarantees the normal operation of plunger pump, if the transmission part insufficient lubrication will directly cause the movement parts quick abrasion of phase mutual friction, oily temperature rise, because of oily temperature rise causes the greasy property decline of lubricant oil, thereby further reduce the serious problems such as life-span of movement parts.The lubricating system of existing plunger pump transmission case mainly contains two kinds, a kind of is the common confession oil lubrication mode of splashing, it mainly is to establish disc on bent axle, make lubricating oil splash realize lubricated purpose to the lubricant housings, because of limited by its conventional construction, the lubricants capacity that splashes can not make full use of, and only is applicable to small-sized plunger pump; Another kind is an additional lubrication oil pump forced feed lubrication, and it mainly is made up of the oil leab of lubricating pump, oil pump transmission part and perforation mutually.Rely on crankshaft rotating to drive oil pump feed or independent oil pump feed, the lubricant oil oil duct that relevant kinematic pair lubricating point with each connects on the lubricant oil interface of casing, bent axle, realize pressure lubrication successively, because of its lubricant oil fuel delivery is applicable to big-and-middle-sized plunger pump greatly to bent axle, big end bearing shell, connecting rod, lining of connecting rod small end, crosshead pin, crosshead.But this forced feed lubrication system is huge and complicated, directly brings the high consequence of plunger pump manufacture cost, simultaneously, also exists some to influence the hidden danger of quality of plunger pump transmission case component life.For example, rely on crankshaft rotating to drive the lubricating fitting of oil pump feed, plunger pump is unlubricated oil in work initial stage oil leab, its initial insufficient lubrication, movement parts wearing and tearing aggravation; Secondly, the shaft orientation flowing channel hole of bent axle is an elongated hole, and the processing in this type of hole belongs to deep hole processing, difficulty of processing is big, and adds chip removal in man-hour difficulty, and smear metal remains in the oil channel hole easily, and residual smear metal enters the fitting surface of each movement parts with lubricated runner, causes the fitting surface inordinate wear, even pulls; Moreover lubricant oil inlet opening and crankshaft end-face are relative movement, and its sealing is belonged to dynamic seal (packing), and dynamic seal (packing) very easily produces leakage of oil.Chinese patent publication number CN2152923, date of declaration on January 12nd, 1994, invention and created name " lubricating structure of plunger pump power end ", disclose a kind of lubricating structure of plunger pump power unit, it has cancelled the oilhole on the bent axle, and is lubricated by above-mentioned reverse order fuel feeding, oil leak, inordinate wear hidden danger of quality have been eliminated, difficulty of processing also has certain improvement, but still needs the pressure lubrication of additional lubrication device, so still there is the problem of huge and the complicated and initial insufficient lubrication of lubrication system architecture.
Summary of the invention
The purpose of this utility model is exactly at the deficiencies in the prior art, in conjunction with the advantage of splash confession oil lubrication and " lubricating structure of plunger pump power end ", provide a kind of a kind of plunger pump simple in structure, lubricated reliable, that do not have initial insufficient lubrication, low cost of manufacture that utilizes lubricant oil to be lubricated to confess the oil lubrication transmission case.
For achieving the above object, the utility model adopts following technological scheme:
A kind of plunger pump confession oil lubrication transmission case, comprise transmission case body, bent axle, connecting rod, crosshead pin, crosshead, plunger rod, lubricant oil, oil leab, oil leab is by crosshead cylindrical oil duct and the mutual big end bearing shell oil duct that connects, connecting rod oil line, the lining of connecting rod small end oil duct is formed, the cross-head guide cover of described transmission case body setting is positioned at the bent axle right side, the cross-head guide cover is bearing on the base plate of transmission case body by riser, cross-head guide cover top is provided with oil storage pool, the bottom of oil storage pool is provided with oil supply hole, oil supply hole is communicated with the oil groove that crosshead cylindrical oil duct is arranged on top, left end at oil groove is provided with oil outlet, connecting rod small end and link arm joint are provided with oil storage tank, oil storage tank is positioned at the oil outlet below of oil groove, and the oil inlet hole in the oil storage tank is communicated with the lining of connecting rod small end oil duct; Be fixedly connected with flywheel on the described bent axle, flywheel is positioned at the connnecting rod big end side, and the bottom of flywheel is soaked in the lubricant oil of transmission case fuel tank, and case oil box inner chamber bottom is the transmission case fuel tank.
After adopting as above technological scheme, the bent axle of plunger pump confession oil lubrication transmission case rotates by the diagram clockwise direction under driven by motor, crosshead is under the drive of bent axle, connecting rod, crosshead pin, in the cross-head guide hole of cross-head guide cover, do straight reciprocating motion, crosshead drives plunger rod and does straight reciprocating motion, realizes the motor function of plunger pump; Flywheel rotates synchronously with bent axle, the lubricating oil splash that carries on flywheel both ends of the surface and the cylindrical is to the roof of transmission case body right-hand member, on the sidewall and in the oil storage pool, lubricant oil on roof and the sidewall also all is pooled to oil storage pool, lubricant oil in the oil storage pool enters in the oil groove of crosshead cylindrical oil duct through the oil supply hole of oil storage pool bottom, crosshead cylindrical oil duct provides lubricant oil for the kinematic pair fitting surface in crosshead and cross-head guide hole, unnecessary lubricant oil is flowed out by the oil outlet of left end in the oil groove, enter the oil storage tank of below connecting rod small end and link arm joint, lubricant oil enters the lining of connecting rod small end oil duct by the oil inlet hole in the oil storage tank, for the kinematic pair fitting surface of lining of connecting rod small end and crosshead pin provides lubricant oil; Simultaneously, remaining lubricant oil enters the big end bearing shell oil duct by lining of connecting rod small end oil duct, connecting rod oil line, for the crankpin kinematic pair fitting surface on big end bearing shell and the bent axle provides lubricant oil.Above-mentioned lubricant oil fuel feeding process need not added oil supplying device, has realized the purpose of confession oil lubrication transmission case parts.
Preferably, oil storage pool surrounds formed cavity volume by the front bezel that is seamless connection successively, two side frames, cross-head guide cover and diaphragms; Front bezel is fixedly connected on cross-head guide cover top left end, both sides frame and cross-head guide cover parallel axes, and be fixedly connected on the both sides of cross-head guide cover respectively, diaphragm is vertical with cross-head guide cover axis, and be positioned at above the middle part of cross-head guide cover, fixedly connected with transmission case body right-hand member roof with the cross-head guide cover respectively in the two ends up and down of diaphragm, fixedly connected with the body of wall of transmission case body both sides respectively in the both sides of diaphragm, the profile of front bezel and diaphragm all adapts with the top profile that cross-head guide overlaps, the top of cross-head guide cover is directly soaked in the lubricant oil of oil storage pool, help the cooling of cross-head guide cover, transmission case and moving element temperature rise speed thereof are slow, temperature rise is low, has prolonged the working life of product.
Preferably, be provided with oil scraping plate between flywheel and the oil storage pool, the lower end of oil scraping plate is fixedly connected with angle bar, and angle bar is fixedlyed connected with the front bezel leading flank of oil storage pool by bolt, and oil scraping plate is the high right low dip in a left side, the front end import of oil scraping plate is positioned at flywheel top, and tangent with the flywheel cylindrical, the back outlet of oil scraping plate is positioned at the oil storage pool top, and oil scraping plate scrapes and is collected in the lubricant oil that falls that do not splash on the flywheel cylindrical in the oil storage pool, its lubricants capacity is abundant, guarantees that greasy property is reliable.
Preferably, the connecting rod bonnet lower end of connecting rod is provided with lubricating cup, the madial wall of lubricating cup is provided with oilhole, oilhole is communicated with the big end bearing shell oil duct, lubricating cup is when extreme lower position, its rim of a cup portion is immersed in the lubricant oil, when connecting rod swing descends, lubricant oil progresses into lubricating cup by rim of a cup, lubricant oil was full of the lubricating cup inner chamber when lubricating cup was in lowest order, along with the lubricating cup position raises gradually, lubricant oil flows into the big end bearing shell oil duct successively by the oilhole of lubricating cup madial wall, guarantees that big end bearing shell oil duct kinematic pair fitting surface lubricants capacity is abundant; Simultaneously, unnecessary lubricant oil is flowed back in the transmission case fuel tank by lubricating cup when lubricating cup is in low level, forms the circulation exchange of lubricant oil, guarantees lubrication effect.
Preferably, the oil storage tank that connecting rod small end and link arm joint are provided with is to surround formed cavity volume by connecting rod small end, link arm and two lateral retaining plates, two lateral retaining plates are fixedly connected on the both sides on link arm top respectively, the two ends of baffle plate are connected with the link arm middle part with the connecting rod small end left side respectively, the lubricants capacity that enters in big end bearing shell oil duct and the lining of connecting rod small end oil duct is abundant, guarantees lubrication effect.
Preferably, the top of transmission case body is provided with the tank filler sleeve that is positioned at the oil storage pool top, and when adding lubricant oil to transmission case, oil leab also has sufficient lubricant oil, has avoided initial insufficient lubrication.
Preferably, the right-hand member roof of transmission case body is the high right low dip in a left side, guarantees that the roof lubricant oil that is splashed to the transmission case body right-hand member all focuses in the oil storage pool, guarantees that further lubricants capacity is abundant.
Preferably, the cross-head guide cover is cylindrical, and the heat diffusion area of cross-head guide cover is big, and the oil reserve of oil storage pool is big, further improves the lubrication effect and the cooling-down effect of plunger pump transmission case.
Further preferred, the section of oil scraping plate is the channel-section steel type, and the bottom front of oil scraping plate is blade-like, the oil mass maximum that oil scraping plate is collected from flywheel, and collected lubricant oil can both all flow in the oil storage pool, guarantees that further lubricants capacity is abundant.
The utility model is compared with the prior art pressure lubrication, does not need the additional lubrication oil pump, and is by transmission case moving element confession oil lubrication, simple in structure, manufacturing cost and use cost is low, do not have initial insufficient lubrication; Compare with traditional splash lubrication, lubricants capacity is abundant, greasy property is reliable, and its lubrication effect is 5～10 times of traditional splash lubrication, simultaneously, the cooling effect of transmission case be improved significantly, the long service life of product.
The utility model is not subjected to the restricted number of fluid cylinder, both be applicable to the transmission case of single cylinder plunger pump, duplex plunger pump, also be applicable to the multi-cylinder plunger pump, be specially adapted to the transmission case of big-and-middle-sized plunger pump, practical application has obtained good lubricating effect in the 350KW three-cylinder plunger pump.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the plan view of the utility model Fig. 1;
Fig. 3 is the A-A sectional view among the utility model Fig. 1;
Fig. 4 is the B-B sectional view among the utility model Fig. 2
Fig. 5 is that the lubricating cup on the utility model connecting rod bonnet is in the limes superiors position view;
Fig. 6 is the schematic representation that the utility model crosshead moves to the limit on the right-right-hand limit position.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, but therefore the utility model is not limited among the following embodiment:
Referring to Fig. 1, a kind of power is the three-cylinder plunger pump confession oil lubrication transmission case of 350KW, comprise transmission case body 1, bent axle 2, three connecting rods 3, thirty prefix pin 4, thirty prefix 5, three plunger rods 6, lubricant oil 9, three groups of oil leabs 8, oil leab 8 is by crosshead cylindrical oil duct 81 and the mutual big end bearing shell oil duct 82 that connects, connecting rod oil line 83, lining of connecting rod small end oil duct 84 is formed, the cross-head guide cover 13 that described transmission case body 1 is provided with is positioned at bent axle 2 right sides, cross-head guide cover 13 is bearing on the base plate of transmission case body 1 by riser 131, cross-head guide overlaps 13 tops and is provided with oil storage pool 72, the bottom of oil storage pool 72 is provided with three oil supply holes 73, three oil supply holes 73 are communicated with the oil groove 812 that thirty prefix cylindrical oil duct 81 is arranged on top respectively, left end at oil groove 812 is provided with oil outlet 811, connecting rod small end and link arm joint are provided with oil storage tank 842, oil storage tank 842 is positioned at oil outlet 811 belows of oil groove 812, and the oil inlet hole 841 in the oil storage tank 842 is communicated with lining of connecting rod small end oil duct 84; Be fixedly connected with two flywheels 21 on the described bent axle 2, each flywheel 21 is between adjacent connnecting rod big end, and the bottom of flywheel 21 is soaked in the lubricant oil 9 of transmission case fuel tank.
Referring to Fig. 6, when described crosshead 5 moved to the limit on the right-right-hand limit position, oil supply hole 73 was communicated with the oil groove 812 of crosshead cylindrical oil duct 81; In like manner, when crosshead 5 moved to the limit on the left position, oil supply hole 73 still was communicated with the oil groove 812 of crosshead cylindrical oil duct 81, and crosshead 5 moves to the limit on the left position does not have accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, described oil storage pool 72 surrounds formed cavity volume by the thirty prefix guide sleeve 13 and the diaphragm 132 of the front bezel 721 that is seamless connection successively, two side frames 722, combination; Front bezel 721 is fixedly connected on the thirty prefix guide sleeve 13 top left ends of combination, two side frames 722 and thirty prefix guide sleeve 13 parallel axes that make up, and be fixedly connected on the both sides of the thirty prefix guide sleeve 13 of combination respectively, diaphragm 132 and thirty prefix guide sleeve 13 axis normal that make up, and be positioned at the right part top of the thirty prefix guide sleeve 13 of combination, fixedly connected with transmission case body 1 right-hand member roof with the thirty prefix guide sleeve 13 of combination respectively in the two ends up and down of diaphragm 132, fixedly connected with the body of wall of transmission case body 1 both sides respectively in the both sides of diaphragm 132, the profile of front bezel 721 and diaphragm 132 all adapts with the top profile of thirty prefix guide sleeve 13 of combination.
Referring to Fig. 1, Fig. 2, be equipped with 1 oil scraping plate 71 between described each flywheel 21 and the oil storage pool 72, the lower end of oil scraping plate 71 is fixedly connected with angle bar 711, angle bar 711 is fixedlyed connected with the leading flank of the front bezel 721 of oil storage pool 72 by bolt, oil scraping plate 71 is the high right low dip in a left side, the front end import 712 of oil scraping plate 71 is positioned at flywheel 21 tops, and tangent with flywheel 21 cylindricals, and the back outlet 713 of oil scraping plate 71 is positioned at oil storage pool 72 tops.
Referring to Fig. 1, Fig. 5, connecting rod bonnet 31 lower ends of described each connecting rod 3 are provided with lubricating cup 311, and the madial wall of lubricating cup 311 is provided with oilhole 312, and oilhole 312 is communicated with big end bearing shell oil duct 82, lubricating cup 311 is when extreme lower position, and its rim of a cup portion is immersed in the lubricant oil 9.
Referring to Fig. 1, Fig. 2, the oil storage tank 842 that described each connecting rod small end and link arm joint are provided with is to surround formed cavity volume by connecting rod small end, link arm and two lateral retaining plates 32, two lateral retaining plates 32 are fixedly connected on the both sides on link arm top respectively, and the two ends of baffle plate 32 are connected with the link arm middle part with the connecting rod small end left side respectively.
Referring to Fig. 1, the top of described transmission case body 1 is provided with the tank filler sleeve 12 that is positioned at oil storage pool 72 tops.
Referring to Fig. 1, the right-hand member roof of described transmission case body 1 is the high right low dip in a left side.
Referring to Fig. 3, it is 13 cylindrical that cross-head guide overlaps.
Referring to Fig. 1, Fig. 4, the section of described oil scraping plate 71 is the channel-section steel type, and the bottom front of oil scraping plate 71 is blade-like.
Claims (9)
1, a kind of plunger pump confession oil lubrication transmission case, comprise transmission case body (1), bent axle (2), connecting rod (3), crosshead pin (4), crosshead (5), plunger rod (6), lubricant oil (9), oil leab (8), oil leab (8) is by crosshead cylindrical oil duct (81) and the mutual big end bearing shell oil duct (82) that connects, connecting rod oil line (83), lining of connecting rod small end oil duct (84) is formed, it is characterized in that: the cross-head guide cover (13) that described transmission case body (1) is provided with is positioned at bent axle (2) right side, cross-head guide cover (13) is bearing on the base plate of transmission case body (1) by riser (131), cross-head guide cover (13) top is provided with oil storage pool (72), the bottom of oil storage pool (72) is provided with oil supply hole (73), oil supply hole (73) is communicated with the oil groove (812) that crosshead cylindrical oil duct (81) is arranged on top, left end at oil groove (812) is provided with oil outlet (811), connecting rod small end and link arm joint are provided with oil storage tank (842), oil storage tank (842) is positioned at oil outlet (811) below of oil groove (812), and the oil inlet hole (841) in the oil storage tank (842) is communicated with lining of connecting rod small end oil duct (84); Be fixedly connected with flywheel (21) on the described bent axle (2), flywheel (21) is positioned at the connnecting rod big end side, and the bottom of flywheel (21) is soaked in the lubricant oil (9) of transmission case fuel tank.
2, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: described oil storage pool (72) surrounds formed cavity volume by the front bezel that is seamless connection successively (721), two side frames (722), cross-head guide cover (13) and diaphragm (132); Front bezel (721) is fixedly connected on cross-head guide cover (13) top left end, both sides frame (722) and cross-head guide cover (13) parallel axes, and be fixedly connected on the both sides of cross-head guide cover (13) respectively, diaphragm (132) and cross-head guide cover (13) axis normal, and be positioned at above the right part of cross-head guide cover (13), fixedly connected with transmission case body (1) right-hand member roof with cross-head guide cover (13) respectively in the two ends up and down of diaphragm (132), fixedly connected with the body of wall of transmission case body (1) both sides respectively in the both sides of diaphragm (132), the profile of front bezel (721) and diaphragm (132) all adapts with the top profile of cross-head guide cover (13).
3, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: be provided with oil scraping plate (71) between described flywheel (21) and the oil storage pool (72), the lower end of oil scraping plate (71) is fixedly connected with angle bar (711), angle bar (711) is fixedlyed connected with front bezel (721) leading flank of oil storage pool (72) by bolt, oil scraping plate (71) is the high right low dip in a left side, the front end import (712) of oil scraping plate (71) is positioned at flywheel (21) top, and tangent with flywheel (21) cylindrical, the back outlet (713) of oil scraping plate (71) is positioned at oil storage pool (72) top.
4, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: connecting rod bonnet (31) lower end of described connecting rod (3) is provided with lubricating cup (311), the madial wall of lubricating cup (311) is provided with oilhole (312), oilhole (312) is communicated with big end bearing shell oil duct (82), lubricating cup (311) is when extreme lower position, and its rim of a cup portion is immersed in the lubricant oil (9).
5, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: the oil storage tank (842) that described connecting rod small end and link arm joint are provided with is to surround formed cavity volume by connecting rod small end, link arm and two lateral retaining plates (32), two lateral retaining plates (32) are fixedly connected on the both sides on link arm top respectively, and the two ends of baffle plate (32) are connected with the link arm middle part with the connecting rod small end left side respectively.
6, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: the top of described transmission case body (1) is provided with the tank filler sleeve (12) that is positioned at oil storage pool (72) top.
7, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: the right-hand member roof of described transmission case body (1) is the high right low dip in a left side.
8, plunger pump confession oil lubrication transmission case according to claim 1, it is characterized in that: described cross-head guide cover (13) is cylindrical.
9, plunger pump confession oil lubrication transmission case according to claim 3, it is characterized in that: the section of described oil scraping plate (71) is the channel-section steel type, and the bottom front of oil scraping plate (71) is blade-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201276422U CN201412317Y (en) | 2009-06-12 | 2009-06-12 | Plunger pump self oil supply lubrication gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201276422U CN201412317Y (en) | 2009-06-12 | 2009-06-12 | Plunger pump self oil supply lubrication gearbox |
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| Publication Number | Publication Date |
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| CN201412317Y true CN201412317Y (en) | 2010-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201276422U Expired - Fee Related CN201412317Y (en) | 2009-06-12 | 2009-06-12 | Plunger pump self oil supply lubrication gearbox |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898314A (en) * | 2010-08-13 | 2010-12-01 | 一拖(洛阳)开创装备科技有限公司 | Machine tool cutter lubricating oil box device |
| CN105042056A (en) * | 2015-09-10 | 2015-11-11 | 湖州三井低温设备有限公司 | Oil lubrication structure of transmission box |
| CN108026835A (en) * | 2015-09-04 | 2018-05-11 | 日产自动车株式会社 | The lubricating structure and lubricating method of the upper pin of the reciprocating block slider crank mechanism of internal combustion engine |
| CN108194346A (en) * | 2018-02-01 | 2018-06-22 | 重庆水泵厂有限责任公司 | Compact Reciprocating-Pump Driving-Box and its manufacturing method |
| CN109520639A (en) * | 2017-09-19 | 2019-03-26 | 中广核研究院有限公司 | A kind of device of emergency diesel dynamo connecting rod on-line temperature monitoring |
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2009
- 2009-06-12 CN CN2009201276422U patent/CN201412317Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898314A (en) * | 2010-08-13 | 2010-12-01 | 一拖(洛阳)开创装备科技有限公司 | Machine tool cutter lubricating oil box device |
| CN108026835A (en) * | 2015-09-04 | 2018-05-11 | 日产自动车株式会社 | The lubricating structure and lubricating method of the upper pin of the reciprocating block slider crank mechanism of internal combustion engine |
| CN105042056A (en) * | 2015-09-10 | 2015-11-11 | 湖州三井低温设备有限公司 | Oil lubrication structure of transmission box |
| CN109520639A (en) * | 2017-09-19 | 2019-03-26 | 中广核研究院有限公司 | A kind of device of emergency diesel dynamo connecting rod on-line temperature monitoring |
| CN109520639B (en) * | 2017-09-19 | 2020-08-21 | 中广核研究院有限公司 | Device for monitoring temperature of connecting rod of emergency diesel generator on line |
| CN108194346A (en) * | 2018-02-01 | 2018-06-22 | 重庆水泵厂有限责任公司 | Compact Reciprocating-Pump Driving-Box and its manufacturing method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING BOZHANG MECHANICAL AND ELECTRICAL EQUIPM Free format text: FORMER OWNER: ZHANG JIAN Effective date: 20140905 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140905 Address after: 400030, Shapingba District, Chongqing, 281 Dragon Street, No. 6 attached Patentee after: Chongqing Bozhang Mechanical and Electrical Equipment Co., Ltd. Address before: 400030, Shapingba District, Chongqing, 33 Dragon Street No. 4, 5-1 attached Patentee before: Zhang Jian |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20180612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |