CN114771011A - Oil return method for circulating oil lubricated shaft seat - Google Patents

Oil return method for circulating oil lubricated shaft seat Download PDF

Info

Publication number
CN114771011A
CN114771011A CN202210464775.9A CN202210464775A CN114771011A CN 114771011 A CN114771011 A CN 114771011A CN 202210464775 A CN202210464775 A CN 202210464775A CN 114771011 A CN114771011 A CN 114771011A
Authority
CN
China
Prior art keywords
oil
slotted hole
hole
groove
crankshaft
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.)
Pending
Application number
CN202210464775.9A
Other languages
Chinese (zh)
Inventor
郭雅慧
郭挺鈞
林明暘
李威
林成龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xie Yi Tech Machinery China Co ltd
Original Assignee
Xie Yi Tech Machinery China Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xie Yi Tech Machinery China Co ltd filed Critical Xie Yi Tech Machinery China Co ltd
Priority to CN202210464775.9A priority Critical patent/CN114771011A/en
Publication of CN114771011A publication Critical patent/CN114771011A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0088Lubricating means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/18Lubricating, e.g. lubricating tool and workpiece simultaneously

Abstract

The invention provides a shaft seat oil return method for circulating oil lubrication, which ensures that the lubrication of a copper bush assembled correspondingly of a crankshaft is sufficient and reliable, and oil used for sufficiently lubricating the copper bush is recycled. It includes frame, crankcase body, oil tank, and the frame is provided with the oil tank corresponding to the lower part position of crankcase body, is provided with an at least bent axle in the crankcase body, and the diaxon end of bent axle is installed in the installation locating hole that corresponds the frame curb plate through copper bush, the bush mount pad that corresponds respectively, its characterized in that: offer oil inlet hole groove, direction oil hole groove on the body of bent axle, the oil tank passes through the oil pump and pours into high-pressure thin oil into oil inlet hole inslot into the thin oil along oil inlet hole groove, the interior outer ring face of direction oil hole groove inflow copper bush, and then makes lubricating oil accomplish the abundant lubrication to copper bush, is provided with the inner groovy simultaneously on the bush mount pad, is provided with the transition recess of intercommunication inner groovy in the position of the frame curb plate that corresponds.

Description

Oil return method for circulating oil lubricated shaft seat
Technical Field
The invention relates to the technical field of oil return of a punch press shaft seat, in particular to a method for oil return of a shaft seat lubricated by circulating oil.
Background
The copper bush around the bent axle of current traditional half door type punch press adopts discontinuous grease lubrication (0# accumulative oil), and the lubrication efficiency is low, and at SPM speed exceedingly fast and stroke overlength, causes the problem that the copper bush scalded and bites because of lubricated not enough production very easily, and the grease that comes out from the copper bush hardly can be used for retrieving and carry out secondary cycle and utilize.
Based on the development of the current new energy automobile industry, more and more stamping forming industries are transformed to the production of new energy battery shells, and punches with longer strokes and higher speeds are required, however, for punch production equipment manufacturers, the design requirements are simply increased by making special sizes on the original machine body structure, and the production requirements of the new energy battery shell industry cannot be completely realized. The technical points to be overcome are as follows:
1. the strength of the part after the stroke of the mechanical crankshaft is increased;
2. the problem of insufficient lubrication of parts caused by a deep drawing process with high speed and long stroke.
Disclosure of Invention
In view of the above problems, the present invention provides a shaft seat oil return method of circulating oil lubrication, which enables the lubrication of a copper bush correspondingly assembled on a crankshaft to be sufficient and reliable, and the oil used for sufficiently lubricating the copper bush to be recycled.
A method for returning oil to a shaft seat lubricated by circulating oil adopts the technical scheme that: it includes frame, crankcase body, oil tank, and the frame is provided with the oil tank corresponding to the lower part position of crankcase body, is provided with an at least bent axle in the crankcase body, and the diaxon end of bent axle is installed in the installation locating hole that corresponds the frame curb plate through copper bush, the bush mount pad that correspond respectively, its characterized in that: offer oil inlet hole groove, direction oil hole groove on the body of bent axle, the oil tank pours into high-pressure thin oil into oil inlet hole inslot into through the oil pump, flows into the interior outer ring face of copper bush with thin oil along oil inlet hole groove, direction oil hole groove, and then makes lubricating oil accomplish the abundant lubrication to copper bush, is provided with the inner groovy simultaneously on the bush mount pad, is provided with the transition recess of intercommunication inner groovy in the position of the frame curb plate that corresponds, communicates through the connecting hole between inner groovy and the transition recess, the inside of frame curb plate is provided with built-in oil circuit, and the connecting hole is connected to built-in oil circuit, built-in oil circuit intercommunication to the oil return opening of oil tank for the fluid that is used for lubricating copper bush is retrieved once more and is got into the oil tank.
It is further characterized in that:
a sliding block body and a guide rail oil receiving groove are further arranged below the crankshaft box body, when the crankshaft rotates and is worn for a long time, part of lubricating oil leaks and flows into an inner cavity of the sliding block body from top to bottom and then flows into the guide rail oil receiving groove, and the lubricating oil in the guide rail oil receiving groove flows into an oil tank through a configured oil return pipe;
an oil baffle plate is arranged under the crankshaft box body corresponding to the crankshaft in the region, and the oil baffle plate is used for guiding lubricating oil leaked by the crankshaft to enter an inner cavity of the sliding block body, so that the lubricating oil cannot diffuse outwards and flow out;
the guide oil groove hole comprises a central slotted hole, a first radial communication slotted hole, a second radial communication slotted hole and a first horizontal transverse slotted hole, wherein the central slotted hole, the first radial communication slotted hole and the second radial communication slotted hole are arranged on two sides of the split rotating shaft, the first horizontal transverse slotted hole penetrates through the axial length of a crankshaft protrusion, blind plugs are respectively plugged at two ends in the length direction of the first horizontal transverse slotted hole, the blind plugs are respectively plugged at the radial outer ends of the first radial communication slotted hole, the inner end of the first radial communication slotted hole is communicated to the inner end of the corresponding central slotted hole, the blind plug is plugged at the exposed end of the central slotted hole, the radial inner end of the second radial communication slotted hole is connected to the axial area of the central slotted hole, and the radial outer end of the second radial communication slotted hole is communicated to the inner ring wall of the copper lining;
oil-isolating rings are fixedly sleeved at the two shaft ends of the crankshaft corresponding to the axial inner side mounting positions of the bushing mounting seats respectively, the oil-isolating rings ensure that lubricating oil flowing into the inner ring wall of the copper bushing cannot flow out from the axial inner end of the copper bushing and can only flow into the outer ring wall of the copper bushing along the radial direction of the oil-isolating rings, and then the lubricating oil flows into the inner groove and then flows into the transition groove and finally flows into the oil tank through a built-in oil way;
the bellied inlet port groove of bent axle is provided with the oil feed bush outward, the peripheral ring cover of oil feed bush has the jumper bar, the jumper bar carries out the lift action, the built-in oil inlet pipe way that advances of jumper bar communicates to the oil feed chamber of oil feed bush, oil feed chamber connects the inlet port groove, the oil tank passes through the oil pump and lasts the pump with thin oil and go into the built-in oil feed pipe way of jumper bar through the hose, the oil feed pipe way lasts pours into thin oil into the inlet port inslot into, when the bent axle arch rotated, because the effect of oil feed bush, the jumper bar horizontal hunting range is less than or equal to 150, does not influence the oil lubrication.
After the lubricating device is adopted, the fluidity of the thin oil is good, the thin oil is continuously injected into the oil inlet hole groove through the external oil path, then the thin oil is transmitted to the inner ring surface of the copper bush through the guide oil groove hole, the inner ring surface of the copper bush and the outer ring surface of the rotating shaft of the crankshaft form full and continuous lubrication, the light oil on the inner ring surface of the copper bush flows into the inner groove due to continuous circulation of the light oil, flows into the built-in oil path through the transition groove and finally flows into the oil tank again, the lubrication of the copper bush correspondingly assembled on the crankshaft is full and reliable, and the oil liquid for fully lubricating the copper bush is recycled for utilization again.
Drawings
FIG. 1 is a schematic diagram of the process of the present invention;
FIG. 2 is a schematic diagram II of the process of the present invention;
FIG. 3 is a schematic view of the arrangement of a blind plug and the flow direction of thin oil;
FIG. 4 is a schematic illustration of a ram connection for a crankshaft lobe suitable for use with the present invention;
the names corresponding to the numbers in the figure are as follows:
the device comprises a front copper bush 1, a front bush mounting seat 2, a rear copper bush 3, a rear bush mounting seat 4, a front oil-separating ring 5 and a rear oil-separating ring 6;
the oil-feeding structure comprises a frame 10, a frame side plate 11, a crankcase body 20, a crankshaft 30, a body 31, a crankshaft protrusion 32, an oil inlet hole groove 40, a guide oil hole groove 50, a central groove hole 51, a first radial communication groove hole 52, a second radial communication groove hole 53, a first horizontal transverse groove hole 54, an inner groove 60, a transition groove 70, a slider body 80, a guide rail oil receiving groove 90, an oil return pipe 100, an oil baffle plate 110, a blind plug 120, a punching rod 130, a built-in oil path 140 and an oil feeding bush 150.
Detailed Description
A method for returning oil to a shaft seat lubricated by circulating oil is shown in figures 1-3: the lubricating oil lubricating device comprises a rack 10, a crankcase body 20 and an oil tank (not shown in the figure), wherein the oil tank is arranged at the lower part of the rack 10 corresponding to the crankcase body 20, at least one crankshaft 30 is arranged in the crankcase body 20, two shaft ends of the crankshaft 30 are respectively arranged in installation positioning holes corresponding to rack side plates 11 through corresponding copper bushings and bushing installation seats, an oil inlet hole groove 40 and a guide oil hole groove 50 are formed in a body 31 of the crankshaft 30, high-pressure thin oil is injected into the oil inlet hole groove 40 through an oil pump by the oil tank, the thin oil flows into the inner and outer ring surfaces of the copper bushings along the oil inlet hole groove 40 and the guide oil hole groove 50, so that the lubricating oil can fully lubricate the copper bushings, an inner groove 60 is arranged on the bushing installation seat, a transition groove 70 communicated with the inner groove is arranged at the position corresponding to the rack side plate 11, and the inner groove 60 is communicated with the transition groove 70 through a connecting hole, the inside of the frame side plate 11 is provided with a built-in oil path 140, the connecting hole is connected to the built-in oil path 140, and the built-in oil path 140 is communicated to an oil return port of the oil tank, so that oil used for lubricating the copper bush is recycled into the oil tank again.
In the specific implementation: the front shaft end of the crankshaft 30 is provided with a front copper bush 1 and a front bush mounting seat 2, and the rear shaft end of the crankshaft 30 is provided with a rear copper bush 3 and a rear bush mounting seat 4;
a sliding block body 80 and a guide rail oil receiving groove 90 are further arranged below the crankshaft box body 20, when the crankshaft 30 rotates and is worn for a long time, part of lubricating oil leaks and flows into an inner cavity of the sliding block body 80 from top to bottom, then flows into the guide rail oil receiving groove 90, and the lubricating oil in the guide rail oil receiving groove 90 flows into an oil tank through an oil return pipe 100;
an oil baffle plate 110 is further arranged right below the crankshaft 30 in the region of the crankcase body 20 corresponding to the crankshaft, and the oil baffle plate 110 is used for guiding lubricating oil leaked from the crankshaft to enter an inner cavity of the slider body 80, so that the lubricating oil cannot diffuse outwards and flow out;
the guide oil slot 50 comprises a central slot 51, a first radial communication slot 52, a second radial communication slot 53 and a first horizontal transverse slot 54, wherein the central slot 51, the first radial communication slot 52 and the second radial communication slot 53 are arranged on two sides of the split rotating shaft, the first horizontal transverse slot 54 penetrates through the axial length of the crankshaft protrusion 32, two ends in the length direction of the first horizontal transverse slot 54 are respectively provided with a blind plug 120 in a plugging manner, the outer radial end of the first radial communication slot 52 is respectively provided with a blind plug 120 in a plugging manner, the inner end of the first radial communication slot 52 is communicated to the inner end of the corresponding central slot 51, the exposed end of the central slot 51 is provided with a blind plug 120 in a plugging manner, the axial area of the central slot 51 is connected with the inner radial end of the second radial communication slot 53, and the outer radial end of the second radial communication slot 53 is communicated to the inner annular wall of the copper lining;
the axial inner side mounting position of the crankshaft 30 corresponding to the front bushing mounting seat 2 is fixedly sleeved with a front oil-separating ring 5, the axial inner side mounting position of the crankshaft 30 corresponds to the rear bushing mounting seat, the axial inner side mounting position of the crankshaft 4 is fixedly sleeved with a rear oil-separating ring 6, the front oil-separating ring 5 and the rear oil-separating ring 6 ensure that lubricating oil flowing into the inner ring wall of the copper bushing cannot flow out from the axial inner end of the copper bushing and can only flow into the outer ring wall of the copper bushing along the radial direction of the oil-separating ring, and then the lubricating oil flows into the inner groove 60 and then flows into the transition groove 70 and finally flows into an oil tank through a built-in oil path;
referring to fig. 4, an oil inlet bushing 150 is arranged outside the oil inlet hole groove 40 of the crankshaft protrusion 32, a plunger 130 is sleeved around the outer periphery of the oil inlet bushing 150, the plunger 130 performs lifting motion, an oil inlet pipeline is arranged in the plunger 130 and communicated to an oil inlet cavity of the oil inlet bushing 150, the oil inlet cavity is connected with the oil inlet hole groove 40, a thin oil is continuously pumped into the oil inlet pipeline arranged in the plunger through a hose by an oil pump by an oil tank, the thin oil is continuously injected into the oil inlet hole groove 40 by the oil inlet pipeline, when the crankshaft protrusion 32 rotates, the left-right swinging amplitude of the plunger 130 is less than or equal to 150 degrees due to the action of the oil inlet bushing 150, and oil lubrication is not affected.
The working principle is as follows: the mobility of thin oil is good, continuously pour into the oil inlet hole inslot with the thin oil through outside oil circuit, then transmit the interior anchor ring of copper bush with the thin oil through direction oil slotted hole, the interior anchor ring of copper bush and the outer anchor ring of the pivot of bent axle form abundant continuous lubrication, because light oil continuous circulation, make the light oil of the interior anchor ring of copper bush flow into the inner groovy, flow into built-in oil circuit through the transition recess, finally flow into the oil tank once more, it makes the copper bush's of the corresponding equipment of bent axle lubricated abundant reliable, and the fluid that is used for abundant lubrication copper bush is retrieved once more and is utilized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a lubricated axle bed oil return method of circulating oil, its includes frame, crankcase, oil tank, and the frame is provided with the oil tank corresponding to the lower part position of crankcase, is provided with an at least bent axle in the crankcase, and the diaxon end of bent axle is installed in the installation locating hole that corresponds the frame curb plate through corresponding copper bush, bush mount pad respectively, its characterized in that: offer oil inlet hole groove, direction oil hole groove on the body of bent axle, the oil tank pours into high-pressure thin oil into oil inlet hole inslot into through the oil pump, flows into the interior outer ring face of copper bush with thin oil along oil inlet hole groove, direction oil hole groove, and then makes lubricating oil accomplish the abundant lubrication to copper bush, is provided with the inner groovy simultaneously on the bush mount pad, is provided with the transition recess of intercommunication inner groovy in the position of the frame curb plate that corresponds, communicates through the connecting hole between inner groovy and the transition recess, the inside of frame curb plate is provided with built-in oil circuit, and the connecting hole is connected to built-in oil circuit, built-in oil circuit intercommunication to the oil return opening of oil tank for the fluid that is used for lubricating copper bush is retrieved once more and is got into the oil tank.
2. The method of claim 1, further comprising the step of returning oil to the oil-lubricated shaft seat by using circulating oil, wherein the method comprises the following steps: the crankshaft box body is characterized in that a sliding block body and a guide rail oil receiving groove are further arranged below the crankshaft box body, when the crankshaft rotates for a long time and is worn, part of lubricating oil leaks and flows into an inner cavity of the sliding block body from top to bottom, then flows into the guide rail oil receiving groove, and the lubricating oil in the guide rail oil receiving groove flows into an oil tank through an oil return pipe.
3. The method of claim 2, further comprising the step of returning oil to the circulating oil lubricated axle seat: an oil baffle plate is further arranged under the crankshaft box body corresponding to the crankshaft in the region, and the oil baffle plate is used for guiding lubricating oil leaked by the crankshaft to enter the inner cavity of the sliding block body, so that the lubricating oil cannot diffuse outwards and flow out.
4. The method of claim 1, wherein the method comprises the steps of: the guide oil groove hole comprises a central slotted hole, a first radial communication slotted hole, a second radial communication slotted hole and a first horizontal transverse slotted hole, wherein the central slotted hole, the first radial communication slotted hole and the second radial communication slotted hole are arranged on two sides of the split rotating shaft, the first horizontal transverse slotted hole penetrates through the axial length of the crankshaft protrusion, blind plugs are respectively plugged at two ends in the length direction of the first horizontal transverse slotted hole, the blind plugs are respectively plugged at the radial outer ends of the first radial communication slotted hole, the inner end of the first radial communication slotted hole is communicated to the inner end of the corresponding central slotted hole, the blind plug is plugged at the exposed end of the central slotted hole, the radial inner end of the second radial communication slotted hole is connected to the axial area of the central slotted hole, and the radial outer end of the second radial communication slotted hole is communicated to the inner ring wall of the copper lining.
5. The method of claim 1, further comprising the step of returning oil to the oil-lubricated shaft seat by using circulating oil, wherein the method comprises the following steps: and oil-separating rings are fixedly sleeved at the two shaft ends of the crankshaft corresponding to the axial inner side mounting positions of the bushing mounting seats respectively, the oil-separating rings ensure that the lubricating oil flowing into the inner ring wall of the copper bushing cannot flow out from the axial inner end of the copper bushing and can only flow into the outer ring wall of the copper bushing along the radial direction of the oil-separating rings, then the lubricating oil flows into the inner groove and then flows into the transition groove, and finally flows into the oil tank through the built-in oil way.
6. The method of claim 1, further comprising the step of returning oil to the oil-lubricated shaft seat by using circulating oil, wherein the method comprises the following steps: an oil inlet bushing is arranged outside an oil inlet hole groove of the crankshaft protrusion, a plunger is sleeved on the periphery of the oil inlet bushing in a surrounding mode, the plunger performs lifting action, an oil inlet pipeline is arranged in the plunger and communicated to an oil inlet cavity of the oil inlet bushing, the oil inlet cavity is connected with the oil inlet hole groove, thin oil is continuously pumped into the oil inlet pipeline arranged in the plunger by an oil tank through a hose through an oil pump, the thin oil is continuously injected into the oil inlet hole groove through the oil inlet pipeline, and when the crankshaft protrusion rotates, the left-right swinging amplitude of the plunger is smaller than or equal to 150 degrees due to the effect of the oil inlet bushing, so that oil lubrication is not affected.
CN202210464775.9A 2022-04-29 2022-04-29 Oil return method for circulating oil lubricated shaft seat Pending CN114771011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210464775.9A CN114771011A (en) 2022-04-29 2022-04-29 Oil return method for circulating oil lubricated shaft seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210464775.9A CN114771011A (en) 2022-04-29 2022-04-29 Oil return method for circulating oil lubricated shaft seat

Publications (1)

Publication Number Publication Date
CN114771011A true CN114771011A (en) 2022-07-22

Family

ID=82434166

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210464775.9A Pending CN114771011A (en) 2022-04-29 2022-04-29 Oil return method for circulating oil lubricated shaft seat

Country Status (1)

Country Link
CN (1) CN114771011A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512634U (en) * 1991-07-29 1993-02-19 石川島播磨重工業株式会社 Supercharger thrust bearing device
KR20020043342A (en) * 2000-12-02 2002-06-10 김경환 Lubrication structure of single cylinder internal combustion engine
CN201301738Y (en) * 2008-12-01 2009-09-02 浙江长宏机电有限公司 Lubricant mechanism of crankshaft and clutch liner in gasoline engine
CN205309132U (en) * 2015-12-22 2016-06-15 东莞市泰基山机械设备有限公司 Circulating lubrication structure in bent axle of high velocity ram machine
CN113290928A (en) * 2021-05-24 2021-08-24 荣成华东锻压机床股份有限公司 Accurate temperature control device and method for crankshaft bearing bush of mechanical press
CN114060632A (en) * 2021-11-24 2022-02-18 广州沁凌汽车技术科技有限公司 High-pressure rotary hydraulic joint
CN114352916A (en) * 2021-12-29 2022-04-15 山东金辰机械股份有限公司 Rare lubricating system for crankshaft transmission of press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512634U (en) * 1991-07-29 1993-02-19 石川島播磨重工業株式会社 Supercharger thrust bearing device
KR20020043342A (en) * 2000-12-02 2002-06-10 김경환 Lubrication structure of single cylinder internal combustion engine
CN201301738Y (en) * 2008-12-01 2009-09-02 浙江长宏机电有限公司 Lubricant mechanism of crankshaft and clutch liner in gasoline engine
CN205309132U (en) * 2015-12-22 2016-06-15 东莞市泰基山机械设备有限公司 Circulating lubrication structure in bent axle of high velocity ram machine
CN113290928A (en) * 2021-05-24 2021-08-24 荣成华东锻压机床股份有限公司 Accurate temperature control device and method for crankshaft bearing bush of mechanical press
CN114060632A (en) * 2021-11-24 2022-02-18 广州沁凌汽车技术科技有限公司 High-pressure rotary hydraulic joint
CN114352916A (en) * 2021-12-29 2022-04-15 山东金辰机械股份有限公司 Rare lubricating system for crankshaft transmission of press

Similar Documents

Publication Publication Date Title
CN201050670Y (en) Press balance cylinder copper sleeve lubrication structure
CN201412317Y (en) Plunger pump self oil supply lubrication gearbox
CN114771011A (en) Oil return method for circulating oil lubricated shaft seat
CN205937742U (en) Engineering machine tool gearbox box
CN204627686U (en) generator lubrication system
CN111702144A (en) Die casting equipment of semi-solid state foundry goods
CN210624132U (en) Self-lubricating oil pump shell
CN206144751U (en) Change lubricating mode's air pump
CN202746562U (en) Axial oil inlet structure of gearbox
CN212479558U (en) High-pressure oil pump tappet lubricating system
CN203404047U (en) Pressurizing oil supply lubricating mechanism for controlling pressure of lubricating oil for compressor
CN204677589U (en) The lubricating structure of homogenizer driving mechanism and the cross head design of use thereof
CN201679708U (en) Circulation cooling lubrication type plunger sealing structure
CN220837426U (en) Hardware production punch press
CN102294810B (en) Double-lubricating device for mold opening mechanism of injection molding machine
CN216867275U (en) Swinging connecting rod durability and self-adjusting swinging connecting rod copper sleeve
CN2485452Y (en) Lubricator for conveying cylinder of concrete pump
CN102116279A (en) 4.5ml/r ultrahigh-pressure electro-hydraulic proportional control radial plunger pump
CN201065777Y (en) Automobile engine
CN216540438U (en) Be used for inside pump body structure of electronic hydraulic piercing press
CN205780313U (en) End cover type plain bearing bush structure
CN211449547U (en) Connecting rod oil guide device
CN216575190U (en) Effectual oil blanket of direction makes mould
CN215845258U (en) Guide pillar for stamping die
CN111112481B (en) Punch press of many guide pillars of many copper sheathing

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination