CN217634152U

CN217634152U - Valve opening and closing control device

Info

Publication number: CN217634152U
Application number: CN202221382585.4U
Authority: CN
Inventors: 张磊; 周明; 靳旭洋; 王一贤
Original assignee: Novotec Shanghai Electronic Technology Co ltd
Current assignee: Novotec Shanghai Electronic Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-10-21
Anticipated expiration: 2032-05-26

Abstract

The application discloses valve on-off control device includes: the gear output shaft is sleeved with the sector gear and coaxially rotates with the sector gear; one end of the gear output shaft penetrates through the bottom of the shell to the outer side of the shell, and penetrates through one end of the shell to be used for connecting a transmission valve, so that the opening and closing degree of the valve is changed along with the rotation degree of the sector gear; when the valve needs to be opened, the driving gear rotates firstly to drive the meshed sector gear and the gear output shaft to rotate, and the rotation degree of the gear output shaft corresponds to the opening and closing degree of the valve, so that the flow rate of the valve is controlled. The gear output shaft outside cover is equipped with the torsional spring, and sector gear rotates and twists reverse the torsional spring with the compression, and after removing the effort of driving gear to sector gear, the torsional spring resumes the power of deformation and can makes sector gear realize automatic re-setting, ensures that the valve in time closes, guarantees the security that the valve used. The problem of valve structure can't in time close because of the trouble has been solved in this application.

Description

Valve opening and closing control device

Technical Field

The application relates to the technical field of valves, in particular to a valve opening and closing control device.

Background

In the electric control actuator structure of the turbocharger, torque force is transmitted to a supercharger valve through a sector gear shaft, so that the valve is opened at a certain angle, and the air inflow is controlled. When the valve is in a standby state, the sector gear shaft returns through the torsion spring, so that the valve is closed.

In the prior art, various equipment all realize the automation, generally adopt drive shaft and valve switch to be connected for open or close valve switch, nevertheless when the drive shaft breaks down and loses power, during unable valve closing, because of unable in time close the valve, various hidden dangers and trouble can appear, can bring the threat to people's life safety when serious.

Therefore, a problem to be solved by those skilled in the art is to provide a controller that can ensure that the valve is closed in time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can avoid can't in time close the valve switching controlling means who causes the damage because of the valve trouble.

In order to achieve the above object, the present application provides a valve opening/closing control apparatus, comprising: the gear box comprises a shell, wherein a driving gear and a sector gear which are in meshing transmission are arranged in the shell; the gear output shaft of the sector gear penetrates out of the shell to be connected with a transmission valve;

the driving gear drives the sector gear to twist so as to adjust the opening and closing degree of the valve; the outer side of the gear output shaft is sleeved with a torsion spring which can drive the sector gear to automatically reset so as to close the valve.

In some embodiments, the torsion spring is provided with a first torsion arm and a second torsion arm at both ends;

a torsional spring fixing groove used for limiting the second torsional spring arm is arranged in the shell; one side of sector gear lower surface is provided with the bellying, and the bellying is used for driving first torsion spring arm to twist reverse.

In some embodiments, a limiting block for limiting the driving gear is further arranged in the shell, and the limiting block is arranged on one side, away from the protruding portion, of the gear output shaft.

In some embodiments, a drive motor shaft is coaxially connected inside the drive gear.

In some embodiments, the housing is provided with a guide platform below the first torsion spring arm, the guide platform being configured to prevent the first torsion spring arm from shifting.

In some embodiments, the top surface of the sector gear is provided with a mounting hole, and the mounting hole is used for driving the assembly tool to rotate.

In some embodiments, the gear output shaft extends to the periphery of the housing and is provided with external threads so as to drive the valve to open and close.

Compared with the prior art, the gear transmission device is provided with a shell, a driving gear and a sector gear are arranged inside the shell, and the sector gear is sleeved on a gear output shaft and rotates coaxially with the gear output shaft; one end of the gear output shaft penetrates through the bottom of the shell to the outer side of the shell, and penetrates through one end of the shell to be used for connecting a transmission valve, so that the opening degree of the valve is changed along with the rotation degree of the sector gear; when the valve needs to be opened, the driving gear rotates firstly to drive the meshed sector gear and the gear output shaft to rotate, and the rotation degree of the gear output shaft corresponds to the opening degree of the valve, so that the flow rate of the valve is controlled. The gear output shaft outside cover is equipped with the torsional spring, and sector gear rotates and twists reverse the torsional spring with the compression, and after removing the effort of driving gear to sector gear, the torsional spring resumes the power of deformation and can makes sector gear realize automatic re-setting, ensures that the valve still can in time be closed when driving gear structure breaks down, guarantees the security that the valve used.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a valve opening/closing control device according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional view of a valve opening/closing control device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a housing according to an embodiment of the present disclosure;

fig. 4 is a top view of a valve opening/closing control device according to an embodiment of the present disclosure.

Wherein:

the device comprises a shell 1, a torsion spring fixing groove 11, a limiting block 12, a sector gear mounting groove 13, a drive gear mounting groove 14, a drive gear 2, a sector gear 3, a gear output shaft 31-, a gear output shaft 4, a torsion spring 5, a first torsion spring arm 51, a second torsion spring arm 52 and a drive motor shaft 6.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In order to better understand the technical scheme of the present application, the following detailed description is provided for the person skilled in the art with reference to the accompanying drawings and the detailed description.

Referring to the accompanying drawings 1-4, fig. 1 is a schematic structural diagram of a valve opening and closing control device provided in an embodiment of the present application, fig. 2 is a schematic cross-sectional diagram of the valve opening and closing control device provided in the embodiment of the present application, fig. 3 is a schematic structural diagram of a housing provided in the embodiment of the present application, and fig. 4 is a top view of the valve opening and closing control device provided in the embodiment of the present application, including; a housing 1, a driving gear 2 and a sector gear 3 are arranged inside the housing 1, and the driving gear 2 and the sector gear 3 are correspondingly arranged in a driving gear mounting groove 14 and a sector gear mounting groove 13. The sector gear 3 is sleeved on the gear output shaft 4 and rotates coaxially with the gear output shaft. One end of the gear output shaft 4 penetrates through the bottom of the shell 1 to the outer side of the shell 1, and penetrates through one end of the shell 1 to be connected with a transmission valve, so that the opening and closing degree of the valve is changed along with the rotation degree of the sector gear 3; when the valve needs to be opened, the driving gear 2 rotates firstly to drive the meshed sector gear 3 and the gear output shaft 4 to rotate, and the rotation degree of the gear output shaft 4 corresponds to the opening degree of the valve, so that the flow rate of the valve is controlled. After the target rotation angle is reached, the driving gear 2 can be kept positioned, the sector gear 3 and the gear output shaft 4 are also ensured to be positioned at the target angle, and the opening degree of the valve is maintained.

4 outside covers of above-mentioned gear output shaft are equipped with torsional spring 5, and foretell sector gear 3 rotates and twists reverse above-mentioned torsional spring 5 with the extrusion for sector gear 3 continuously receives the torsional force of torsional spring 5, and after removing drive gear 2 to sector gear 3's effort, the power that torsional spring 5 resumeed deformation can make sector gear 3 realize automatic re-setting, ensures that the valve in time closes. Under conventional circumstances, accessible control drive gear 2 upset drives and realizes that the valve is closed, but when drive gear 2 trouble back out of control, it can be because torsional spring 5 realizes reseing equally, has increased one deck protection machanism, avoids the harm that the valve closed untimely production.

The arrangement and the application method of the transmission between the gear output shaft 4 and the valve can refer to the prior art, and are not described herein again.

Further, both ends of the torsion spring 5 are respectively provided with a first torsion spring arm 51 and a second torsion spring arm 52; the housing 1 is correspondingly provided with a torsion spring fixing groove 11, and the torsion spring fixing groove 11 limits the displacement of the second torsion spring arm 52 in the horizontal plane, so as to realize the positioning of one end of the torsion spring 5. A protrusion is provided on a lower surface of the sector gear 3 near one side wall, and when the driving gear 2 is closed, the protrusion is located on one side of the first torsion spring arm 51 and does not twist. After the driving gear 2 drives the sector gear 3 to rotate, the second torsion spring arm 52 of the torsion spring 5 is fixed in the torsion spring fixing groove 11 in a limiting manner, the side surface of the protruding part contacts with the first torsion spring arm 51 in the rotating process and drives the first torsion spring arm 51 to twist in the direction of increasing the torsion force of the first torsion spring arm, at the moment, the torsion force continuously applied to the sector gear 3 is offset by the driving force of the driving gear 2, but after the driving force of the driving gear 2 is removed, the sector gear 3 is reset to the initial position by the torsion force generated by the torsion spring 5 in order to restore the deformation, and the automatic closing of the valve is realized.

Further, still be provided with stopper 12 in above-mentioned casing 1, stopper 12 is used for butt sector gear 3 and keeps away from the lateral wall of bellying one side, and under drive gear 2 closed condition, stopper 12 is used for avoiding sector gear 3 to rotate around self axis and disengage with drive gear 2's meshing, leads to the unable normal use of equipment.

Under drive gear 2 opens the back closed condition again, also when torsional spring 5 resets sector gear 3, stopper 12 is used for preventing to rotate sector gear 3 excessively because of the torsional force, can't accurately resume sector gear 3's initial position.

Further, the inside coaxial coupling of above-mentioned drive gear 2 has drive motor shaft 6, and drive motor shaft 6 utilizes automatically controlled accurate control drive gear 2's turned angle, realizes the aperture of accurate control valve indirectly.

The driving motor shaft 6 is convenient to control, simple in structure and convenient to assemble, the arrangement mode and the using method of the driving motor shaft can refer to the prior art, and the driving motor shaft is not unfolded.

Further, a guide platform is arranged below the housing 1 corresponding to the first torsion spring arm 51, a space for the first torsion spring arm 51 to move horizontally is formed between the guide platform and the bottom surface of the sector gear 3, the vertical movement range of the first torsion spring arm 51 is limited, and it is ensured that the first torsion spring arm 51 is not deviated from the contact position with the boss part to cause the equipment to be out of control in the process that the boss part pushes the first torsion spring arm 51. The guide platform can be arranged and is not limited to be arranged as a bulge of the partial structure of the bottom surface of the shell 1, and the stability and the control precision of the equipment are improved.

Further, the top surface of the sector gear 3 is provided with the mounting hole 31, and during actual operation, the second torsion spring arm 52 of the torsion spring 5 is aligned and placed in the torsion spring fixing groove 11 for limiting, and then the sector gear 3 and the gear output shaft 4 are aligned and mounted in the sector gear mounting groove 13 and inserted into the mounting hole 31 through the assembly tool. Assembly fixture rotates sector gear 3 and pushes down, makes the bellying and first torsion spring arm 51 of sector gear 3 below correspond the preset position that sets up in same horizontal plane, and the side of sector gear 3 opposite side also corresponds the setting in the preset within range that can the butt with stopper 12, and the one end of gear output shaft 4 is aimed at the through-hole of predetermineeing and is worn out to the casing 1 outside and be connected control flap. It should be noted that, the vertical position of the sector gear 3 is always kept unchanged in the using process, a thrust bump can be arranged at the top end of the limiting block 12, and after the sector gear is installed in place, the thrust bump abuts against the end face of the sector gear 3, so that the sector gear is prevented from being separated from the limiting position of the shell 1.

And then, the driving gear 2 arranged in the shell 1 is ensured to be in meshed transmission with the sector gear 3, and the driving gear 2 can be controlled to rotate after the installation is finished.

The assembly tool only needs to realize the rotation and the pressing of the sector gear 3, the specific structure of the assembly tool can refer to the prior art, the design key point is not taken here, and the details are not repeated herein.

Further, the part of the gear output shaft 4 extending out of the shell 1 is circumferentially provided with external threads, and is connected with a valve through the external threads to drive, so that the valve is controlled to open and close, and rotation transmission is facilitated. Of course, the method of providing the external thread connection control valve is only an embodiment, and has the advantage of small transmission energy loss, but other implementation manners are also applicable, and are not described herein again.

It should be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The valve opening and closing control device provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A valve opening/closing control device, comprising: the gear box comprises a shell (1), wherein a driving gear (2) and a sector gear (3) which are in meshing transmission are arranged in the shell (1); a gear output shaft (4) of the sector gear (3) penetrates out of the shell (1) to be connected with a transmission valve;

the driving gear (2) drives the sector gear (3) to twist so as to adjust the opening and closing degree of the valve; the outer side of the gear output shaft (4) is sleeved with a torsion spring (5), and the torsion spring (5) can drive the sector gear (3) to automatically reset so as to close the valve.

2. The valve opening and closing control device according to claim 1, wherein a first torsion spring arm (51) and a second torsion spring arm (52) are provided at both ends of the torsion spring (5);

a torsion spring fixing groove (11) used for limiting the second torsion spring arm (52) is formed in the shell (1); and a protruding part is arranged on one side of the lower surface of the sector gear (3) and is used for driving the first torsion spring arm (51) to twist.

3. The valve opening and closing control device according to claim 2, characterized in that a limiting block (12) for limiting the driving gear (2) is further arranged in the housing (1), and the limiting block (12) is arranged on one side of the gear output shaft (4) departing from the boss.

4. The valve opening and closing control device according to claim 3, characterized in that a driving motor shaft (6) is coaxially connected inside the driving gear (2).

5. The valve opening and closing control device according to claim 4, characterized in that the housing (1) is provided with a guide platform below the first torsion arm (51) to avoid the first torsion arm (51) from being displaced.

6. The valve opening and closing control device is characterized in that the top surface of the sector gear (3) is provided with a mounting hole (31), and the mounting hole (31) is used for driving an assembly tool to rotate.

7. The valve opening and closing control device according to any one of claims 1 to 6, wherein the gear output shaft (4) is provided with external threads extending to the peripheral surface of the housing (1) so as to drive the valve to open and close.