CN111928008B - Main shaft driving butt joint structure of valve speed reducer - Google Patents
Main shaft driving butt joint structure of valve speed reducer Download PDFInfo
- Publication number
- CN111928008B CN111928008B CN202010687245.1A CN202010687245A CN111928008B CN 111928008 B CN111928008 B CN 111928008B CN 202010687245 A CN202010687245 A CN 202010687245A CN 111928008 B CN111928008 B CN 111928008B
- Authority
- CN
- China
- Prior art keywords
- prism
- matched
- valve
- adjusting cylinder
- speed reducer
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Abstract
The invention discloses a valve speed reducer spindle drive butt joint structure, which comprises a rotary drive module, wherein an output shaft of the rotary drive module is connected with a first prism through a universal connection mechanism, an adjusting cylinder matched with the first prism is slidably sleeved on the first prism, the length of the adjusting cylinder is longer than that of the first prism, a second prism matched with the first prism is slidably inserted in the adjusting cylinder and positioned below the first prism, the lower end part of the second prism extends out of the adjusting cylinder, a sleeve matched with the second prism is slidably sleeved on the lower end part of the second prism, an upper inner hole of the sleeve is matched with the second prism, and the cross section shape of a lower inner hole of the sleeve is consistent with the shape of the end head of a central shaft of the valve speed reducer. The automatic rotation device not only can realize the automatic rotation of the main shaft of the valve speed reducer to improve the operation efficiency, but also can reduce the impact on the main shaft of the valve speed reducer, and is also suitable for the valve speed reducers in different valve well depths.
Description
Technical Field
The invention relates to the technical field of valve speed reducer operating tools, in particular to a valve speed reducer spindle driving butt joint structure.
Background
The large pipeline is used as a conveying carrier for bearing large-flow fluid, can reduce the conveying cost of a large amount of fluid, conveys the fluid to each area to be conveyed, and then disperses the fluid to each supply point, however, when large-flow fluid is supplied, because the pipeline is longer and has more branches, in order to ensure the safety of large pipeline transportation, a plurality of valves for closing are arranged on the pipeline, however, because most of the large pipeline has high flow rate and large flow, the valve has larger volume and mass and can meet great resistance when being opened and closed, meanwhile, because the valve is opened and closed frequently, the valve can be opened and closed only when needing to be opened and closed or sudden situations occur, but because the valve has larger mass and has the phenomenon of fluid impact, the opening and closing of the valve need to be controlled by a valve reducer matched with the valve, in the prior art, the input shaft of the valve reducer is often manually rotated to be opened and closed, need four at least people to organize and adopt the mode of pushing away the mill to open and close, need rotate 8000-.
Disclosure of Invention
In view of this, the invention provides a valve reducer main shaft driving butt joint structure, which not only can realize automatic rotation of a valve reducer main shaft to improve the operation efficiency, but also can reduce impact on the valve reducer main shaft in the rotation driving process, and meanwhile, can be suitable for valve reducers in different valve well depths.
In order to achieve the above purpose, the present invention provides a valve reducer spindle drive butt joint structure, which includes a rotary drive module, wherein an output shaft of the rotary drive module is connected with a first prism through a universal connection mechanism, the first prism is slidably sleeved with an adjusting cylinder matched therewith, the length of the adjusting cylinder is longer than that of the first prism, a second prism matched therewith is slidably inserted in the adjusting cylinder and located below the first prism, the lower end of the second prism extends out of the adjusting cylinder, the lower end of the second prism is slidably sleeved with a sleeve matched therewith, an upper inner hole of the sleeve is matched with the second prism, and a cross-sectional shape of the lower inner hole of the sleeve is consistent with an end shape of a central shaft of the valve reducer.
Furthermore, a plurality of adjusting holes are formed in the adjusting cylinder body in a penetrating manner along the diameter direction, the adjusting holes are distributed along the axial direction of the adjusting cylinder body, a fixing hole is formed in the upper portion of the second prism body, the fixing hole corresponds to one of the adjusting holes and penetrates through a fastener to fix the second prism body and the adjusting cylinder body, and the installation height of the second prism body relative to the adjusting cylinder body is adjusted according to the height of the adjusting hole selected and inserted by the fastener.
Further, the fastener adopts a bolt-nut assembly, a screw-nut assembly or a bolt assembly.
Further, the number of the adjusting holes is 1-10.
Further, universal coupling mechanism is including setting up first installation barrel on the output shaft of rotary drive module, the lower extreme of first installation barrel articulates there is second installation barrel, many first keyways have been seted up along the axial on the inner wall of second installation barrel, and whole first keyways are circumference evenly distributed and are in on the circumference inner wall of second installation barrel, it is equipped with the sliding shaft to insert in the second installation barrel, set up on the periphery of sliding shaft with first keyway matched with first key body, the lower extreme of sliding shaft articulates there is third installation barrel, the cross section of the hole of third installation barrel is the polygon, it is equipped with rather than matched with first prism to slide to insert in the hole of third installation barrel.
Or, universal connection mechanism is including setting up first installation barrel on the output shaft of rotation driving module, the lower extreme of first installation barrel articulates there is the third installation barrel, the cross section of the hole of third installation barrel is the polygon, it is equipped with rather than matched with to slide to insert in the hole of third installation barrel first prism.
Furthermore, a plurality of second key grooves are axially formed in the outer surface of the output shaft of the rotary driving module, all the second key grooves are circumferentially and uniformly distributed on the circumferential surface of the output shaft, and a second key body matched with the second key grooves is axially arranged on the inner wall of the first mounting cylinder.
Further, the width of the second key groove is 1.1-1.5 times of the width of the second key body.
Further, the number of the second key grooves is 5-12.
Further, the cross section of the inner hole of the third mounting cylinder body is a triangle, a quadrangle, a pentagon, a hexagon, a heptagon or an octagon.
Further, the rotary driving module adopts an electric motor, a hydraulic motor or a pneumatic motor.
The technical scheme of the invention has the following beneficial effects: the invention aims at the technical problems that in the prior art, the input shaft of the valve speed reducer is often manually rotated to be opened and closed, at least four people are required to be opened and closed in a group in a grinding mode, and the valve is rotated by 8000-. The utility model provides a valve speed reducer spindle drive butt-joint structural, including the rotation driving module, be connected with first prism through universal coupling mechanism on the output shaft of rotation driving module, sliding sleeve is equipped with rather than matched with regulation barrel on the first prism, the length of adjusting the barrel is longer than the length of first prism, adjust the inside of barrel and be located the below of first prism is slided and is inserted and be equipped with rather than matched with second prism, the lower tip of second prism stretches out adjust the barrel, the lower tip sliding sleeve of second prism is equipped with rather than matched with sleeve, telescopic upper portion hole with the second prism cooperatees, the cross sectional shape of telescopic lower part hole is unanimous with the end shape of the center pin of valve speed reducer.
The automatic rotation device not only can realize the automatic rotation of the main shaft of the valve speed reducer to improve the operation efficiency, but also can reduce the impact on the main shaft of the valve speed reducer in the rotation driving process, and meanwhile, the automatic rotation device can be suitable for the valve speed reducers in different valve well depths.
Drawings
Fig. 1 is a schematic structural front view of a valve reducer spindle drive docking structure according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along the line A in FIG. 1;
fig. 3 is a schematic structural perspective view of a valve reducer spindle drive docking structure according to the present invention;
FIG. 4 is a schematic structural diagram of a rotation driving module according to the present invention;
FIG. 5 is a perspective view of a second mounting cylinder according to the present invention;
FIG. 6 is a perspective view of the sliding shaft according to the present invention;
FIG. 7 is a perspective view of the sleeve of the present invention;
FIG. 8 is a perspective view of the first mounting cylinder of the present invention;
reference numerals:
a rotation driving module 100;
an output shaft 110;
a second key groove 111;
a universal connection mechanism 200;
a first mounting cylinder 210;
a second key body 211;
a second mounting cylinder 220;
a first key groove 221;
a slide shaft 230;
the first key body 231;
a third mounting cylinder 240;
a first prism 300;
the cylinder 400 is adjusted;
an adjustment aperture 410;
a second prism 500;
a fixing hole 510;
a fastener 520;
a sleeve 600;
an upper inner bore 610;
and a lower bore 620.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1-8: the utility model provides a valve speed reducer spindle drive butt-joint structural, includes the rotation driving module, be connected with first prism through universal coupling mechanism on the output shaft of rotation driving module, sliding sleeve is equipped with rather than matched with regulation barrel on the first prism, the length of adjusting the barrel is longer than the length of first prism, the inside of adjusting the barrel just is located the below of first prism is slided and is inserted and is equipped with rather than matched with second prism, the lower tip of second prism stretches out adjust the barrel, the lower tip sliding sleeve of second prism is equipped with rather than matched with sleeve, telescopic upper portion hole with the second prism cooperatees, the cross sectional shape of telescopic lower part hole is unanimous with the end shape of valve speed reducer's center pin.
Specifically, as shown in fig. 1 to 3, a valve reducer spindle driving butt joint structure includes a rotation driving module 100, the output shaft 110 of the rotation driving module 100 is connected to a first prism 300 through a universal connection mechanism 200, the first prism 300 is slidably sleeved with an adjusting cylinder 400 matched with the first prism, the length of the adjusting cylinder 400 is longer than that of the first prism 300, a second prism 500 matched with the first prism 300 is inserted in the adjusting cylinder 400 under the first prism 300 in a sliding manner, the lower end of the second prism 500 extends out of the adjusting cylinder 400, the lower end of the second prism 500 is slidably sleeved with a sleeve 600 matched with the second prism, the upper inner hole 610 of the sleeve 600 is matched with the second prism 500, and the cross section shape of the lower inner hole 620 of the sleeve 600 is consistent with the shape of the end of the central shaft of the valve speed reducer.
According to an embodiment of the present invention, as shown in fig. 1, a plurality of adjusting holes 410 are formed in the adjusting cylinder 400 in a penetrating manner in a diameter direction, the plurality of adjusting holes 410 are distributed along an axial direction of the adjusting cylinder 400, a fixing hole 510 is formed in an upper portion of the second prism 500, the fixing hole 510 corresponds to one of the adjusting holes 410 and is penetrated by a fastening member 520 to fix the second prism 500 to the adjusting cylinder 400, and an installation height of the second prism 500 with respect to the adjusting cylinder 400 is adjusted according to a height of the adjusting hole 410 selected and inserted by the fastening member 520.
In this embodiment, after the length of the second prism 500 extending out of the adjusting cylinder 400 is determined, in order to avoid the sliding between the second prism 500 and the adjusting cylinder 400, especially when the well depth of the valve is large, the second prism 500 needs to be pulled out from the adjusting cylinder 400 for a long time, a distance is provided between the top of the second prism 500 and the top of the insertion hole for inserting the second prism 500 in the adjusting cylinder 400, the adjusting cylinder 400 is easy to slide down along the second prism 500, in order to avoid this phenomenon, a plurality of adjusting holes 410 are penetratingly arranged on the adjusting cylinder 400 along the diameter direction, the plurality of adjusting holes 410 are distributed along the axial direction of the adjusting cylinder 400, a fixing hole 510 is arranged at the upper portion of the second prism 500, the fixing hole 510 corresponds to one of the adjusting holes 410, and a fastener 520 is arranged to fix the second prism 500 to the adjusting cylinder 400, the installation height of the second prism 500 with respect to the adjustment cylinder 400 is adjusted according to the height of the adjustment hole 410 selectively inserted by the fastener 520.
According to an embodiment of the present invention, the fastening member 520 is a bolt-nut assembly, and the fastening member 520 is used for fixing the second prism 500 to the adjusting cylinder 400, and it is obvious that the fastening member 520 is not limited to the bolt-nut assembly, and other types, such as a screw-nut assembly, or a bolt assembly, can be used to perform the same function.
According to an embodiment of the present invention, the number of the adjusting holes 410 is 7, and it is obvious that the number of the adjusting holes 410 can be set to any number according to the requirement of the height adjustment in the actual operation, such as 1, 2, 3, 4, 5, 6, 8, 9, or 10.
According to an embodiment of the present invention, as shown in fig. 1 and 3, the universal coupling mechanism 200 includes a first mounting cylinder 210 disposed on the output shaft 110 of the rotation driving module 100, a second mounting cylinder 220 hinged to a lower end of the first mounting cylinder 210, as shown in fig. 5, a plurality of first key slots 221 are axially formed in the inner wall of the second installation cylinder 220, all the first key slots 221 are circumferentially and uniformly distributed on the circumferential inner wall of the second installation cylinder 220, a sliding shaft 230 is inserted into the second installation cylinder 220, as shown in fig. 6, a first key body 231 is provided on the circumferential surface of the sliding shaft 230 to be engaged with the first key groove 221, the lower end of the sliding shaft 230 is hinged with a third installation cylinder 240, the cross section of the inner hole of the third installation cylinder 240 is polygonal, the first prism 300 matched with the third installation cylinder 240 is inserted into the inner hole of the third installation cylinder in a sliding manner.
According to an embodiment of the present invention, the universal connection mechanism 200 may also adopt another structure, including a first installation cylinder 210 disposed on the output shaft 110 of the rotation driving module 100, a third installation cylinder 240 is hinged to a lower end of the first installation cylinder 210, a cross section of an inner hole of the third installation cylinder 240 is polygonal, and the first prism 300 matched with the inner hole of the third installation cylinder 240 is slidably inserted into the inner hole.
According to an embodiment of the present invention, as shown in fig. 4, a plurality of second key grooves 111 are axially formed on an outer surface of the output shaft 110 of the rotation driving module 100, all the second key grooves 111 are circumferentially and uniformly distributed on a circumferential surface of the output shaft 110, and as shown in fig. 8, a second key body 211 matched with the second key grooves 111 is axially disposed on an inner wall of the first mounting cylinder 210.
According to an embodiment of the present invention, the width of the second key groove 111 is 1.1 times the width of the second key body 211, in this embodiment, the width of the second key groove 111 is 1.1 times the width of the second key body 211, which is intended to facilitate the insertion of the second key body 211 into the second key groove 111, and reduce the impact of the rotary driving module 100 on the second key body 211 during the sudden start, so as to play a certain role in buffering, and obviously, the width of the second key groove 111 may also be other times of the width of the second key body 211, such as 1.2 times, 1.3 times, 1.4 times, or 1.5 times, etc.
According to an embodiment of the present invention, the number of the second key slots 111 is 6, and it is obvious that the number of the second key slots 111 can be set to other numbers, such as 5, 7, 8, 9, 10, 11, or 12.
According to an embodiment of the present invention, the cross-section of the inner hole of the third installation cylinder 240 is a quadrangle, and it is obvious that the cross-section of the inner hole of the third installation cylinder 240 can be provided in other shapes, such as a triangle, a pentagon, a hexagon, a heptagon, or an octagon.
According to an embodiment of the present invention, the rotation driving module 100 employs a hydraulic motor, and the rotation driving module 100 is used to provide a rotation acting force for the universal connection mechanism, so as to drive the sleeve 600 slidably sleeved on the lower end portion of the second prism 500 to rotate, and finally drive the main shaft of the valve speed reducer to rotate, so as to achieve the purpose of closing and opening the valve, it is obvious that the rotation driving module 100 may also employ other types, such as an electric motor, or a pneumatic motor.
The automatic rotation device not only can realize the automatic rotation of the main shaft of the valve speed reducer to improve the operation efficiency, but also can reduce the impact on the main shaft of the valve speed reducer in the rotation driving process, and meanwhile, the automatic rotation device can be suitable for the valve speed reducers in different valve well depths.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a valve speed reducer main shaft drive butt-joint structural which characterized in that: the valve speed reducer comprises a rotary driving module, wherein an output shaft of the rotary driving module is connected with a first prism through a universal connecting mechanism, the first prism is slidably sleeved with an adjusting cylinder matched with the first prism, the length of the adjusting cylinder is longer than that of the first prism, a second prism matched with the first prism is slidably inserted into the adjusting cylinder and is positioned below the first prism, the lower end of the second prism extends out of the adjusting cylinder, a sleeve matched with the second prism is slidably sleeved at the lower end of the second prism, an inner hole at the upper part of the sleeve is matched with the second prism, and the cross section shape of the inner hole at the lower part of the sleeve is consistent with the shape of the end of a central shaft of the valve speed reducer; a plurality of adjusting holes are formed in the adjusting cylinder body in a penetrating mode in the diameter direction and distributed in the axial direction of the adjusting cylinder body, a fixing hole is formed in the upper portion of the second prism body, the fixing hole corresponds to one adjusting hole and penetrates through a fastener to achieve fixing between the second prism body and the adjusting cylinder body, and the installation height of the second prism body relative to the adjusting cylinder body is adjusted according to the height of the adjusting hole selected to be inserted by the fastener; universal coupling mechanism is including setting up first installation barrel on the output shaft of rotary drive module, the lower extreme of first installation barrel articulates there is second installation barrel, many first keyways have been seted up along the axial on the inner wall of second installation barrel, and whole first keyway is circumference evenly distributed and is in on the circumference inner wall of second installation barrel, it is equipped with the sliding shaft to insert in the second installation barrel, set up on the periphery of sliding shaft with first keyway matched with first key body, the lower extreme of sliding shaft articulates there is third installation barrel, the cross section of the hole of third installation barrel is the polygon, it is equipped with rather than matched with to slide to insert in the hole of third installation barrel first prism.
2. The valve reducer spindle drive butt joint structure of claim 1, wherein: the fastener adopts a bolt and nut component, a screw and nut component or a bolt component.
3. The valve reducer spindle drive butt joint structure of claim 1, wherein: the outer surface of the output shaft of the rotary driving module is provided with a plurality of second key grooves along the axial direction, all the second key grooves are uniformly distributed on the circumferential surface of the output shaft along the circumferential direction, and the inner wall of the first mounting cylinder body is provided with a second key body matched with the second key grooves along the axial direction.
4. The valve reducer spindle drive butt joint structure of claim 3, wherein: the width of the second key groove is 1.1-1.5 times of the width of the second key body.
5. The valve reducer spindle drive butt joint structure of claim 1, wherein: the cross section of the inner hole of the third mounting cylinder body is triangular, quadrangular, pentagonal, hexagonal, heptagonal or octagonal.
6. The valve reducer spindle drive butt joint structure of claim 1, wherein: the rotary driving module adopts an electric motor, a hydraulic motor or a pneumatic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687245.1A CN111928008B (en) | 2020-07-16 | 2020-07-16 | Main shaft driving butt joint structure of valve speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687245.1A CN111928008B (en) | 2020-07-16 | 2020-07-16 | Main shaft driving butt joint structure of valve speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111928008A CN111928008A (en) | 2020-11-13 |
| CN111928008B true CN111928008B (en) | 2022-05-13 |
Family
ID=73313193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010687245.1A Active CN111928008B (en) | 2020-07-16 | 2020-07-16 | Main shaft driving butt joint structure of valve speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111928008B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087342B (en) * | 2021-11-19 | 2023-12-05 | 三联传动机械有限公司 | Speed reducer with adjustable output shaft position |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196839A (en) * | 1997-01-10 | 1998-07-31 | Kubota Corp | Valve operation device having surface box |
| KR20000024395A (en) * | 2000-02-11 | 2000-05-06 | 배문열 | Method of installing valve buried in manhole by numerical control and installation thereof |
| CN202501073U (en) * | 2012-03-14 | 2012-10-24 | 中国工程物理研究院核物理与化学研究所 | Tunnel gate transmission system |
| CN202834330U (en) * | 2012-08-15 | 2013-03-27 | 杭州国能汽轮工程有限公司 | Novel operation connection rod mechanism |
| CN202852157U (en) * | 2012-08-16 | 2013-04-03 | 上海鸿润科技有限公司 | Valve opening and closing device and container for composite type middle-sized bulk container |
| CN203114927U (en) * | 2013-03-01 | 2013-08-07 | 瞿坚芳 | Universal joint assembly for multi-shaft device |
| CN207161782U (en) * | 2017-07-14 | 2018-03-30 | 上海海陆丰船用阀门有限公司 | Marine mobile platform ballast drainage bilge drainage means |
| CN108119655A (en) * | 2017-12-18 | 2018-06-05 | 中国舰船研究设计中心 | A kind of kingston valve and its transmission device |
| CN108204473A (en) * | 2016-12-20 | 2018-06-26 | 中核新能核工业工程有限责任公司 | A kind of valve opening device that hot tank is pressed for hex |
-
2020
- 2020-07-16 CN CN202010687245.1A patent/CN111928008B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10196839A (en) * | 1997-01-10 | 1998-07-31 | Kubota Corp | Valve operation device having surface box |
| KR20000024395A (en) * | 2000-02-11 | 2000-05-06 | 배문열 | Method of installing valve buried in manhole by numerical control and installation thereof |
| CN202501073U (en) * | 2012-03-14 | 2012-10-24 | 中国工程物理研究院核物理与化学研究所 | Tunnel gate transmission system |
| CN202834330U (en) * | 2012-08-15 | 2013-03-27 | 杭州国能汽轮工程有限公司 | Novel operation connection rod mechanism |
| CN202852157U (en) * | 2012-08-16 | 2013-04-03 | 上海鸿润科技有限公司 | Valve opening and closing device and container for composite type middle-sized bulk container |
| CN203114927U (en) * | 2013-03-01 | 2013-08-07 | 瞿坚芳 | Universal joint assembly for multi-shaft device |
| CN108204473A (en) * | 2016-12-20 | 2018-06-26 | 中核新能核工业工程有限责任公司 | A kind of valve opening device that hot tank is pressed for hex |
| CN207161782U (en) * | 2017-07-14 | 2018-03-30 | 上海海陆丰船用阀门有限公司 | Marine mobile platform ballast drainage bilge drainage means |
| CN108119655A (en) * | 2017-12-18 | 2018-06-05 | 中国舰船研究设计中心 | A kind of kingston valve and its transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111928008A (en) | 2020-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2262601B1 (en) | Hand-held machine tool | |
| EP2178675B1 (en) | Quick-change system | |
| CN111928008B (en) | Main shaft driving butt joint structure of valve speed reducer | |
| DE102008056876B4 (en) | Device and method for removing a valve seat ring | |
| EP0691484B1 (en) | Force transmitting coupling for a tube shaft to an annular drill bit | |
| EP2078165A1 (en) | Low swage load fastening system and method | |
| DE69633603T2 (en) | Powered screwdriver | |
| DE2817721A1 (en) | COMBINED DRILLING AND SCREWING TOOL | |
| DE4213610A1 (en) | BRAKE DEVICE FOR PNEUMATICALLY DRIVED TURNING TOOL | |
| DE112004000663T5 (en) | Tool for mounting fasteners with blind thread | |
| DE202011100815U1 (en) | Tool set for assembly and disassembly of a silentbloc | |
| DE4132187C2 (en) | Air turbine | |
| EP2594378A2 (en) | Drill core holder and hollow core drilling method using a drill core holder | |
| US3383894A (en) | Power tools for setting blind fasteners | |
| DE60220476T2 (en) | Arrangement of an output shaft for the control system of a rocket | |
| US3066557A (en) | Ball type upsetting apparatus | |
| DE3933154A1 (en) | SHAFT COUPLING | |
| CN111928005B (en) | Intelligent control system and method for opening and closing valve | |
| DE19904849A1 (en) | Nail driving-in device, with receiving device for nail having one end connected to connecting piece for hammering machine | |
| CN210565641U (en) | Automobile screw with expandable tip | |
| CN208565295U (en) | Seam allowance formula expansion set flange | |
| DE102005017875B4 (en) | Calibration and chamfering tool | |
| CN111895155B (en) | Main shaft rotation executing device of movable valve speed reducer | |
| CN212131020U (en) | Anti-dismantling bolt assembly and anti-dismantling bolt | |
| CN220807202U (en) | Quick tube drawing device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |