CN207437789U - Automatic exhaust device, gear-box and electrically operated valve - Google Patents

Automatic exhaust device, gear-box and electrically operated valve Download PDF

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Publication number
CN207437789U
CN207437789U CN201721344555.3U CN201721344555U CN207437789U CN 207437789 U CN207437789 U CN 207437789U CN 201721344555 U CN201721344555 U CN 201721344555U CN 207437789 U CN207437789 U CN 207437789U
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China
Prior art keywords
gear
box
exhaust passage
ball sealer
elastomeric element
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CN201721344555.3U
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Chinese (zh)
Inventor
唐强
林棋
董楠
杨放
左栋
刘锋
陈文�
叶尔博
陶金
魏广锋
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China National Petroleum Corp
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China National Petroleum Corp
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Abstract

The disclosure is directed to a kind of automatic exhaust device, gear-box and electrically operated valves, belong to technical field of pipeline transport.The automatic exhaust device includes tubular body, elastomeric element and mobilizable ball sealer, wherein:Tubular body includes the first exhaust passage being connected and second exhaust passage, and the diameter of first exhaust passage is more than the diameter of ball sealer, and the diameter of second exhaust passage is less than the diameter of ball sealer;The first passage mouth of first exhaust passage is equipped with pipe lid, and pipe is covered equipped with gas vent;Elastomeric element and ball sealer are respectively positioned in first exhaust passage, and the first end of elastomeric element is fixed on pipe and covers, and second end is fixed on ball sealer;Ball sealer fits under the elastic force effect of elastomeric element with the second channel mouth of second exhaust passage.Using the disclosure, the air pressure in gear-box can be reduced by the automatic exhaust of the automatic exhaust device, the junction between gear-box and other components such as valve is avoided the phenomenon that oil seepage occur.

Description

Automatic exhaust device, gear-box and electrically operated valve
Technical field
The disclosure is directed to technical field of pipeline transport, especially with respect to a kind of automatic exhaust device, gear-box and electronic Valve.
Background technology
Electrically operated valve is widely used in oil transportation (gas) pipe-line system, be it is a kind of with electronic actuator control valves door to realize The device of the on and off of valve.Electrically operated valve mainly include motor, gear-box and valve, wherein, the output shaft of motor with The input shaft of gear-box is fixedly connected, and the output shaft of gear-box is fixedly connected with the valve core shaft of valve, and motor passes through gear The on and off of case control valve.Wherein, gear-box is the device that a kind of inside is made of gear, realizes that power passes by gear It is dynamic, in order to reduce the abrasion between gear, transmission efficiency is improved, it is necessary to periodically inject moderate lubrication oil into gear-box.Therefore, It needs to add the tank filler sleeve for injecting lubricating oil on gear-box, when needing to inject lubricating oil into gear-box, will block The closure bolt of tank filler sleeve is backed out.
During the disclosure is realized, inventor has found to have at least the following problems:
Gear in gear-box can generate heat in rotation process, especially in the higher situation of summer environment temperature Under, the temperature inside gear-box is higher, and internal lubricating oil is easy to volatilize, and the air pressure inside gear-box is caused to increase, is made There is the phenomenon that oil seepage into the junction between gear-box and valve.
Utility model content
In order to overcome the problems, such as that oil seepage occurs in the junction present in correlation technique between gear-box and valve, Present disclose provides a kind of automatic exhaust device, gear-box and electrically operated valves.The technical solution is as follows:
According to the embodiment of the present disclosure in a first aspect, providing a kind of automatic exhaust device, the automatic exhaust device includes Tubular body, elastomeric element and mobilizable ball sealer, wherein:
The tubular body includes the first exhaust passage that is connected and second exhaust passage, the first exhaust passage and The second exhaust passage is cylindrical channel and coaxial, and the diameter of the first exhaust passage is more than the straight of the ball sealer Footpath, the diameter of the second exhaust passage are less than the diameter of the ball sealer;
The first passage mouth of the first exhaust passage is provided with pipe lid, and the pipe, which covers, is provided at least one exhaust Hole, wherein, the first passage mouth is passway of the first exhaust passage away from the second exhaust passage;
The elastomeric element and the ball sealer are respectively positioned in the first exhaust passage, the first end of the elastomeric element It is fixed on the pipe to cover, the second end of the elastomeric element is fixed on the ball sealer;
Second channel mouth phase of the ball sealer under the elastic force effect of the elastomeric element with the second exhaust passage Fitting, wherein, the sum of gravity of the elastic force of the elastomeric element and the ball sealer is default value, and the second channel mouth is The second exhaust passage and the passway of the first exhaust passage connectivity part.
Optionally, the pipe, which covers, is equipped with adjusting bolt, and one end of the elastomeric element is fixed on the adjusting bolt On.
Optionally, the elastomeric element is spring, and the internal diameter of the spring is less than the diameter of the ball sealer.
Optionally, the pipe covers gas vent there are two settings.
Optionally, a diameter of default value of the gas vent.
Optionally, the tubular body is provided with to install on the outer wall of the second exhaust passage described automatic The external screw thread of exhaust apparatus.
According to the second aspect of the embodiment of the present disclosure, a kind of gear-box is provided, the gear-box is case type gear-box, The gear-box includes the automatic exhaust device described in first aspect;
The automatic exhaust device is removably mounted on the housing of the gear-box.
Optionally, tank filler sleeve is provided on the housing of the gear-box, the automatic exhaust device is removably mounted at institute It states on tank filler sleeve.
According to the third aspect of the embodiment of the present disclosure, a kind of electrically operated valve is provided, the electrically operated valve includes motor, valve Gear-box described in door and second aspect;
The output shaft of the motor is fixedly connected with the input shaft of the gear-box, the output shaft of the gear-box and institute The valve core shaft for stating valve is fixedly connected.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In the embodiment of the present disclosure, when installing above-mentioned automatic exhaust device on the housing of case type gear-box, the gear Gas in case can be automatically vented by the automatic exhaust device.Specifically, when the air pressure in second exhaust passage is small In elastomeric element elastic force and ball sealer the sum of gravity when, ball sealer leads under the elastic force effect of elastomeric element with second exhaust The second channel mouth in road fits closely, to keep the leakproofness inside gear-box;When the air pressure in second exhaust passage is more than bullet When the sum of the elastic force of property component and the gravity of ball sealer, the gas push ball sealer in second exhaust passage shifts to elastomeric element, Make the appearance gap between ball sealer and the second channel mouth of second exhaust passage, the gas in second exhaust passage is made to pass through row Stomata is discharged, at this point, the automatic exhaust device is in automatic exhaust condition.In this way, the automatic row for passing through the automatic exhaust device Gas can reduce the air pressure inside gear-box, it is thus possible to avoid gear-box because its air pressure inside is excessive, and cause and other portions There is the phenomenon that oil seepage in junction between part such as valve.
It should be appreciated that above general description and following detailed description are only exemplary and explanatory, not The disclosure can be limited.
Description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure Example, and for explaining the principle of the disclosure together with specification.In the accompanying drawings:
Fig. 1 is the structure diagram according to a kind of automatic exhaust device for implementing to exemplify;
Fig. 2 is the structure diagram according to a kind of automatic exhaust device for implementing to exemplify;
Fig. 3 is the structure diagram according to a kind of automatic exhaust device for implementing to exemplify.
Marginal data
1st, tubular body 2, elastomeric element
3rd, ball sealer 4, adjusting bolt
5th, tank filler sleeve 11, first exhaust passage
12nd, second exhaust passage 13, Guan Gai
14th, external screw thread 111, first passage mouth
121st, second channel mouth 131, gas vent
Pass through above-mentioned attached drawing, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings The scope for limiting the disclosure by any mode and conceiving is not intended to word description, but is by reference to specific embodiment Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, example is illustrated in the accompanying drawings.Following description is related to During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar element.Following exemplary embodiment Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they be only with it is such as appended The example of the consistent apparatus and method of some aspects be described in detail in claims, the disclosure.
Present embodiment discloses a kind of automatic exhaust device, which can be applied to any enclosed and inside In the babinet that gas can be generated.For example, applied in case type gear-box, gear-box is the dress that a kind of inside is made of gear It puts, in order to reduce the abrasion between gear, improves transmission efficiency, it is necessary to periodically inject moderate lubrication oil into gear-box, and tooth Wheel can generate heat in rotation process, and lubricating oil volatilizees at high temperature generates gas, be unfavorable for tooth when gathering more gas The sealing of roller box, therefore, it is necessary to install exhaust apparatus gear-box is exhausted.For convenience of introduction, in the present embodiment with this from Dynamic exhaust apparatus is applied to gear-box example, correspondingly, the automatic exhaust device is removably mounted on the housing of gear-box, such as It may be mounted on the tank filler sleeve of gear-box, instead of the closure bolt of tank filler sleeve.
As shown in Figure 1, the automatic exhaust device includes tubular body 1, elastomeric element 2 and mobilizable ball sealer 3, In:Tubular body 1 includes the first exhaust passage 11 being connected and second exhaust passage 12, first exhaust passage 11 and second row Gas passage 12 is cylindrical channel and coaxial, and the diameter of first exhaust passage 11 is more than the diameter of ball sealer 3, second exhaust passage 12 diameter is less than the diameter of ball sealer 3;The first passage mouth 111 of first exhaust passage 11 is provided with pipe lid 13, on pipe lid 13 At least one gas vent 131 is provided with, wherein, first passage mouth 111 is first exhaust passage 11 away from second exhaust passage 12 Passway;Elastomeric element 2 and ball sealer 3 are respectively positioned in first exhaust passage 11, and the first end of elastomeric element 2 is fixed on pipe lid On 13, the second end of elastomeric element 2 is fixed on ball sealer 3;Ball sealer 3 elastomeric element 2 elastic force effect under with second row The second channel mouth 121 of gas passage 12 fits, wherein, the sum of the elastic force of elastomeric element 2 and the gravity of ball sealer 3 are present count Value, second channel mouth 121 is the passway of second exhaust passage 12 and 11 connectivity part of first exhaust passage.
Wherein, which is a kind of to have tubular structure and can be with self-bleeding device, tubular structure Automatic exhaust device pipe in for exhaust passage, which can be divided into the different two parts of diameter, such as Fig. 1 institutes Show, the diameter of first exhaust pipeline 11 is more than the diameter of second exhaust pipeline 12.First exhaust pipeline 11 can be going out for gas Gas end, second exhaust pipeline 12 can be the inlet ends of gas, and therefore, second exhaust pipeline 12 is the row being connected with gear-box Feed channel.
In force, the diameter of the diameter of first exhaust pipeline 11 and second exhaust pipeline 12 differ primarily to Ball sealer 3 is placed in tubular body 1, so, the diameter of first exhaust passage 11 is more than the diameter of ball sealer 3, and second exhaust is led to The diameter in road 12 is less than the diameter of ball sealer 3, in this way, ball sealer 3 is located in first exhaust passage 11, and leads to second exhaust The second channel mouth 121 in road 12 fits.Wherein, ball sealer 3 is a kind of with constant weight ball, such as can be that rigidity ball also may be used To be shot.
In practical applications, rainwater, dust etc. are entered by the first passage mouth 111 of first exhaust passage 11 in order to prevent Into the automatic exhaust device, correspondingly, first passage mouth 111 is provided with pipe lid 13, as shown in Figure 1, pipe lid 13 can be with pipe Shape body 1 is integrally formed, and pipe lid 13 can also be mounted on tubular body 1 by other means.It is provided at least on pipe lid 13 One gas vent 131, in this way, its size compared with first passage mouth 111 of gas vent 131 is smaller, it is possible to reduce rainwater, dust etc. Entrance.In the application, in order to improve exhaust efficiency, correspondingly, as shown in Figure 1, two gas vents can be set on pipe lid 13 131。
Optionally, gas vent 131 is exposed in external environment, is entered to reduce rainwater and dust by gas vent 131 In the automatic exhaust device, correspondingly, a diameter of default value of above-mentioned gas vent 131, the diameter of gas vent 131 can basis Depending on the size of tubular body 1.
In this way, when the atmospheric pressure value in second exhaust pipeline 12 is more than the gravity of ball sealer 3, ball sealer 3 will be to moving up It is dynamic, so as to occur gap between the second channel mouth 121 of second exhaust passage 12 or even ball sealer and second channel mouth occur 121 situations about being separated, at this point, gas will pass through first exhaust passage 11, by 131 row of gas vent outwardly, so as to To reduce the gas in second exhaust passage 12 and gear-box.Correspondingly, the air pressure inside gear-box can be reduced, gear is avoided Case air pressure inside crosses ambassador's gear-box and the phenomenon that oil seepage occurs in the junction of other components.
In practical applications, the more wasteful internal lubrication oil of gas in frequent toothrow roller box, therefore, only need to work as gear-box In air pressure processing is just exhausted when comparing, and rely solely on ball sealer 3 to overcome the air pressure in gear-box that may compare Difficulty, the then correspondingly, automatic exhaust device further includes elastomeric element 2, as shown in Figure 1, elastomeric element 2 leads to positioned at first exhaust In road 11, the first end of elastomeric element 2 is fixed on pipe lid 13, and the second end of elastomeric element 2 is fixed on ball sealer 3.When certainly When dynamic exhaust apparatus be in non-exhaust condition, ball sealer 3 in the case where the elastic force of elastomeric element 2 is acted on second exhaust passage 12 the Two passways 121 fit.
Wherein, the sum of gravity of the elastic force of elastomeric element 2 and ball sealer 3 is default value, the default value and gear-box In the maximum pressure that can bear it is related, can such as be equal to the maximum pressure, the maximum pressure and the actual rings residing for gear-box Border is related.If the gravity of ball sealer 3 can overcome above-mentioned maximum pressure, elastomeric element 2 may be at nature, elasticity The elastic force of component 2 is zero;If the gravity of ball sealer 3 is less than above-mentioned maximum pressure, elastomeric element 2 may be at compression shape State.Under normal conditions, the second situation is relatively conventional, can be with the second situation example in the present embodiment.
In this way, when the air pressure in gear-box is less than the sum of the elastic force of elastomeric element 2 and the gravity of ball sealer 3, ball sealer 3 Second channel mouth 121 with second exhaust passage 12 under the elastic force effect of elastomeric element 2 fits closely, at this point, the automatic row Device of air is in non-exhaust condition;When the air pressure in gear-box is more than the sum of the elastic force of elastomeric element 2 and the gravity of ball sealer 3 When, the gas push ball sealer 3 in second exhaust passage 12 shifts to elastomeric element 2, makes ball sealer 3 and second exhaust passage 12 Occur gap between second channel mouth 121 or even the situation that ball sealer is separated with second channel mouth 121 occur, second exhaust Gas in passage 12 by 131 row of gas vent outwardly, at this point, the automatic exhaust device is in automatic exhaust condition.So as to, The automatic exhaust device can be vented automatically, and the air pressure inside gear-box is inspected periodically without staff, and then, it can reduce Air pressure inside gear-box avoids the junction that gear-box air pressure inside crosses ambassador's gear-box and other components from lubricating oil occur and ooze The phenomenon that leakage.
Optionally, when the ambient air temperature residing for gear-box is higher, especially summer, the connection of gear-box and other components The rubber seal at place is easy to aging, and smaller air pressure can be so that showing for oil seepage occurs in the junction of gear-box As in this case, it is necessary to the value of the elastic force of regulation elasticity component 2 and the sum of the gravity of ball sealer 3.Corresponding structure can be with It is that, as shown in Fig. 2, being equipped with adjusting bolt 4 on pipe lid 13, one end of elastomeric element 2 is fixed in adjusting bolt 4.
In force, adjusting bolt 4 is connected through a screw thread with pipe lid 13, and adjusting bolt 4 can be adjusted, correspondingly, working as needs When wanting the sum of the elastic force of larger elastomeric element 2 and the gravity of ball sealer 3, adjusting bolt 4 is threaded towards in first exhaust passage 11, Increase the elastic force of elastomeric element 2;When the sum of the elastic force for needing smaller elastomeric element 2 and the gravity of ball sealer 3, loosen and adjust Bolt 4 reduces the elastic force of elastomeric element 2.
Optionally, above-mentioned elastomeric element 2 can be arbitrary flexible component, for example, relatively common is spring, be It is fixed with ball sealer 3, then the internal diameter of the spring is less than the diameter of ball sealer 3.
Optionally, as described above, which may be mounted in case type gear-box, the automatic exhaust The mounting means of device and gear-box have it is a variety of, for example, can be connected through a screw thread, can also rivet, card can also be passed through Button connection etc..The mode being usually threadedly coupled is more convenient and leakproofness is also preferable, and corresponding structure can be, such as Fig. 3 institutes Showing, tubular body 1 is provided with to install the external screw thread 14 of the automatic exhaust device on the outer wall of second exhaust passage 12, The external screw thread 14 is engaged with the internal thread set on the housing of gear-box.
In the embodiment of the present disclosure, when installing above-mentioned automatic exhaust device on the housing of case type gear-box, the gear Gas in case can be automatically vented by the automatic exhaust device.Specifically, when the air pressure in second exhaust passage is small In elastomeric element elastic force and ball sealer the sum of gravity when, ball sealer leads under the elastic force effect of elastomeric element with second exhaust The second channel mouth in road fits closely, to keep the leakproofness inside gear-box;When the air pressure in second exhaust passage is more than bullet When the sum of the elastic force of property component and the gravity of ball sealer, the gas push ball sealer in second exhaust passage shifts to elastomeric element, Make the appearance gap between ball sealer and the second channel mouth of second exhaust passage, the gas in second exhaust passage is made to pass through row Stomata is discharged, at this point, the automatic exhaust device is in automatic exhaust condition.In this way, the automatic row for passing through the automatic exhaust device Gas can reduce the air pressure inside said gear case, it is thus possible to avoid gear-box because its air pressure inside is excessive, and cause and its There is the phenomenon that oil seepage in junction between its component such as valve.
The disclosure also shows a kind of gear-box, which is case type gear-box, including described above automatic Exhaust apparatus, the automatic exhaust device are removably mounted on the housing of said gear case.In force, on the housing of gear-box Tank filler sleeve 5 is provided with, above-mentioned automatic exhaust device can be removably mounted on the tank filler sleeve 5.It is as described above, The mounting means of the automatic exhaust device and gear-box has a variety of, the installation side between the automatic exhaust device and tank filler sleeve 5 Formula also have it is a variety of, for example, the mode that can be connected through a screw thread, then as shown in figure 3, tubular body 1 leads to close to second exhaust It is provided with to install the external screw thread 14 of the automatic exhaust device on the outer wall in road 12, the external screw thread 14 on tank filler sleeve 5 with setting Internal thread 51 be engaged.
In the embodiment of the present disclosure, the gas in said gear case can be automatically vented by automatic exhaust device.Tool Body, when the air pressure in second exhaust passage is less than the sum of the elastic force of elastomeric element and the gravity of ball sealer, ball sealer is in bullet Property component elastic force effect is lower and the second channel mouth of second exhaust passage fits closely, to keep the sealing inside gear-box Property;When the air pressure in second exhaust passage is more than the sum of the elastic force of elastomeric element and the gravity of ball sealer, second exhaust passage In gas push ball sealer shift to elastomeric element, make between the appearance between ball sealer and the second channel mouth of second exhaust passage Gap makes the gas in second exhaust passage be discharged by gas vent, at this point, automatic exhaust device is in automatic exhaust condition.This Sample can reduce the air pressure inside gear-box by the automatic exhaust of the automatic exhaust device, it is thus possible to avoid gear-box because Its air pressure inside is excessive, and the junction between other components such as valve is caused the phenomenon that oil seepage occur.
The disclosure also shows a kind of electrically operated valve, which includes motor, valve and gear described above Case;The output shaft of the motor is fixedly connected with the input shaft of gear-box, and the output shaft of gear-box and the valve core shaft of valve are consolidated Fixed connection.As stated above, the gas in gear-box can be automatically vented by automatic exhaust device.Specifically, work as When air pressure in second exhaust passage is less than the sum of the elastic force of elastomeric element and the gravity of ball sealer, ball sealer is in elastomeric element The lower second channel mouth with second exhaust passage of elastic force effect fits closely, to keep the leakproofness inside gear-box;When second When air pressure in exhaust passage is more than the sum of the elastic force of elastomeric element and the gravity of ball sealer, the gas in second exhaust passage pushes away Dynamic ball sealer shifts to elastomeric element, makes the appearance gap between ball sealer and the second channel mouth of second exhaust passage, makes second Gas in exhaust passage is discharged by gas vent, at this point, automatic exhaust device is in automatic exhaust condition.In this way, pass through this The automatic exhaust of automatic exhaust device can reduce the air pressure inside gear-box, it is thus possible to avoid gear-box because of its internal gas It presses through greatly, and the junction between other components such as valve is caused the phenomenon that oil seepage occur.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice disclosure disclosed herein Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or Person's adaptive change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure Or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope and spirit of the disclosure are by above Claim is pointed out.
It should be appreciated that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claim.

Claims (9)

1. a kind of automatic exhaust device, which is characterized in that the automatic exhaust device includes tubular body, elastomeric element and can live Dynamic ball sealer, wherein:
The tubular body includes the first exhaust passage that is connected and second exhaust passage, the first exhaust passage and described Second exhaust passage is cylindrical channel and coaxial, and the diameter of the first exhaust passage is more than the diameter of the ball sealer, institute The diameter for stating second exhaust passage is less than the diameter of the ball sealer;
The first passage mouth of the first exhaust passage is provided with pipe lid, and the pipe, which covers, is provided at least one gas vent, In, the first passage mouth is passway of the first exhaust passage away from the second exhaust passage;
The elastomeric element and the ball sealer are respectively positioned in the first exhaust passage, and the first end of the elastomeric element is fixed It is covered in the pipe, the second end of the elastomeric element is fixed on the ball sealer;
The ball sealer fits under the elastic force effect of the elastomeric element with the second channel mouth of the second exhaust passage, Wherein, the sum of gravity of the elastic force of the elastomeric element and the ball sealer is default value, and the second channel mouth is described Second exhaust passage and the passway of the first exhaust passage connectivity part.
2. automatic exhaust device according to claim 1, which is characterized in that the pipe, which covers, is equipped with adjusting bolt, institute The one end for stating elastomeric element is fixed in the adjusting bolt.
3. automatic exhaust device according to claim 1, which is characterized in that the elastomeric element be spring, the spring Internal diameter be less than the ball sealer diameter.
4. automatic exhaust device according to claim 1, which is characterized in that the pipe covers setting, and there are two gas vents.
5. according to claim 1-4 any one of them automatic exhaust devices, which is characterized in that the gas vent it is a diameter of pre- If numerical value.
6. according to claim 1-4 any one of them automatic exhaust devices, which is characterized in that the tubular body is close to described It is provided with to install the external screw thread of the automatic exhaust device on the outer wall of second exhaust passage.
7. a kind of gear-box, which is characterized in that the gear-box is case type gear-box, and the gear-box includes claim 1-6 any one of them automatic exhaust devices;
The automatic exhaust device is removably mounted on the housing of the gear-box.
8. gear-box according to claim 7, which is characterized in that tank filler sleeve, institute are provided on the housing of the gear-box Automatic exhaust device is stated to be removably mounted on the tank filler sleeve.
9. a kind of electrically operated valve, which is characterized in that the electrically operated valve is included described in motor, valve and claim 7 or 8 Gear-box;
The output shaft of the motor is fixedly connected with the input shaft of the gear-box, the output shaft of the gear-box and the valve The valve core shaft of door is fixedly connected.
CN201721344555.3U 2017-10-18 2017-10-18 Automatic exhaust device, gear-box and electrically operated valve Active CN207437789U (en)

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CN201721344555.3U CN207437789U (en) 2017-10-18 2017-10-18 Automatic exhaust device, gear-box and electrically operated valve

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120634A (en) * 2020-02-28 2020-05-08 重庆长安汽车股份有限公司 Diaphragm type air vent
CN112960722A (en) * 2021-01-27 2021-06-15 陈庆 Seawater distillation desalination equipment capable of comprehensively utilizing geothermal energy
CN113649418A (en) * 2021-07-14 2021-11-16 首钢京唐钢铁联合有限责任公司 Tooth coupling and hot rolling finishing mill group
CN114962965A (en) * 2022-05-26 2022-08-30 郭红 Lubricating oil filling mechanism and wind generating set

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120634A (en) * 2020-02-28 2020-05-08 重庆长安汽车股份有限公司 Diaphragm type air vent
CN111120634B (en) * 2020-02-28 2022-08-09 重庆长安汽车股份有限公司 Diaphragm type air vent
CN112960722A (en) * 2021-01-27 2021-06-15 陈庆 Seawater distillation desalination equipment capable of comprehensively utilizing geothermal energy
CN113649418A (en) * 2021-07-14 2021-11-16 首钢京唐钢铁联合有限责任公司 Tooth coupling and hot rolling finishing mill group
CN113649418B (en) * 2021-07-14 2023-10-24 首钢京唐钢铁联合有限责任公司 Gear coupling and hot rolling finishing mill group
CN114962965A (en) * 2022-05-26 2022-08-30 郭红 Lubricating oil filling mechanism and wind generating set

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