CN212226141U - Gear positioning mechanism of straight-stroke electric actuator - Google Patents
Gear positioning mechanism of straight-stroke electric actuator Download PDFInfo
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- CN212226141U CN212226141U CN202020703016.XU CN202020703016U CN212226141U CN 212226141 U CN212226141 U CN 212226141U CN 202020703016 U CN202020703016 U CN 202020703016U CN 212226141 U CN212226141 U CN 212226141U
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Abstract
The utility model relates to a craspedodrome journey electric actuator gear positioning mechanism, affiliated craspedodrome journey electric actuator technical field, which comprises a housin, be equipped with in the casing and insert the rack leading truck that embedded screw connection is fixed mutually with the casing, be equipped with drive assembly between rack leading truck and casing, be equipped with the rack with drive assembly looks tooth-shaped meshing in the rack leading truck, the rack tail end is equipped with the extension spring that cup joints mutually with the rack, be equipped with the conductive potentiometer who cup joints with drive assembly looks pivot formula on the housing end face, conductive potentiometer side below is equipped with the limit switch who is connected fixedly with casing looks screw formula, be equipped with between limit switch and the conductive potentiometer and cup joint and touch the limit cam who connects with limit switch is movable mutually with drive assembly looks pivot formula. The device has the characteristics of simple structure, high positioning accuracy of the running stroke and good stability. The problem of frequent start-up cause the operation stroke accumulative error big is solved. The adjustability of the straight-stroke electric actuator is improved, and the function of conveniently correcting stroke errors is achieved.
Description
Technical Field
The utility model relates to a straight stroke electric actuator technical field, concretely relates to straight stroke electric actuator gear positioning mechanism.
Background
The DKZ type straight-stroke electric actuating mechanism can be matched with a DDZ-III type instrument for use, and can also be matched with an assembly instrument and a TA instrument for use. The device takes a 220V power supply as power, receives a unified standard signal of 4-20mA, converts the signal into output shaft linear displacement corresponding to an input signal, automatically controls a regulating valve or other terminal mechanisms and the like to complete an automatic regulating task, or is matched with an electric operator to implement manual remote control. The method is widely applied to adjusting systems of industrial departments such as power plants, steel, petroleum, chemical industry, light industry and the like. The straight-stroke electric actuating mechanism produced by Shanghai one-ring valve manufacturing company Limited has three control modes of continuous adjustment, manual remote control and local manual operation. The automatic regulating system using the DKZ type straight stroke electric actuating mechanism can realize manual and automatic undisturbed switching of the automatic regulating system only after a ZPE-3101 type servo amplifier and a DFD-1000 type electric operator are matched. The automatic regulating system using the straight-stroke electric actuating mechanism is matched with a DFD-1000 type electric operator, so that the regulation system can be switched from manual operation to automatic operation or from automatic operation to manual operation, and undisturbed switching is realized.
Disclosure of Invention
The utility model discloses there are the not enough of the low and poor stability of stroke positioning accuracy mainly to solve among the prior art, provide a straight stroke electric actuator gear positioning mechanism, it has simple structure, the high and stable good characteristics of stroke positioning accuracy. The problem of frequent start-up cause the operation stroke accumulative error big is solved. The adjustability of the straight-stroke electric actuator is improved, and the function of conveniently correcting stroke errors is achieved.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides a straight stroke electric actuator gear positioning mechanism, includes the casing, the casing in be equipped with and insert the rack leading truck that embedded screw is connected fixedly mutually with the casing, rack leading truck and casing between be equipped with drive assembly, the rack leading truck in be equipped with drive assembly looks tooth form meshing's rack, the rack tail end be equipped with the extension spring that cup joints mutually with the rack, the housing face on be equipped with the electrically conductive potentiometre that cup joints with drive assembly looks pivot formula, electrically conductive potentiometre side below be equipped with casing looks screw formula be connected fixed limit switch, limit switch and electrically conductive potentiometre between be equipped with and drive assembly looks pivot formula cup joint and with limit switch movable contact's limit cam mutually.
Preferably, the transmission assembly comprises a transition gear pair, a potentiometer drive gear shaft which is in tooth-shaped meshing with the transition gear pair and is in transmission shaft type nested connection with the conductive potentiometer is arranged at the upper end of the transition gear pair, and a cam drive gear shaft which is in tooth-shaped meshing with the transition gear pair and is in transmission shaft type nested connection with the limiting cam is arranged at the lower end of the transition gear pair.
Preferably, the transition gear pair comprises a rotating shaft, a transition pinion I which is nested with the rotating shaft in a limiting way and is in tooth-shaped meshing with the potentiometer driving gear shaft is arranged between the rotating shaft and the potentiometer driving gear shaft, a transition pinion II which is nested with the rotating shaft in a limiting way is arranged between the rotating shaft and the cam driving gear shaft and between the rotating shaft and a rack, and the transition pinion II is in tooth-shaped meshing transmission with the rack and the cam driving gear shaft.
Preferably, snap spring washers are arranged between the cam driving gear shaft and the rack guide frame, between the rotating shaft and the rack guide frame and between the rotating shaft and the shell.
Preferably, a guide shaft sleeve which is in guide sleeve joint with the rack is arranged between the two ends of the rack and the rack guide frame.
Preferably, the upper part and the lower part of the tension spring are respectively provided with an installation fixing plate which is fixedly connected with the shell through inserting and embedding limit type screws.
Preferably, the cross section of the mounting and fixing plate is of an L-shaped structure.
The utility model discloses can reach following effect:
the utility model provides a straight stroke electric actuator gear positioning mechanism compares with prior art, has simple structure, the high and stable good characteristics of the operation stroke positioning accuracy degree. The problem of frequent start-up cause the operation stroke accumulative error big is solved. The adjustability of the straight-stroke electric actuator is improved, and the function of conveniently correcting stroke errors is achieved.
Drawings
Fig. 1 is a front view structure diagram of the present invention.
Fig. 2 is a schematic rear view of the present invention.
Fig. 3 is a schematic structural view of the rack and the rack guide frame of the present invention.
Fig. 4 is a schematic structural diagram of the transmission assembly of the present invention.
In the figure: the installation fixed plate 1, extension spring 2, casing 3, rack 4, drive assembly 5, rack leading truck 6, guide shaft sleeve 7, jump ring packing ring 8, electrically conductive potentiometre 9, limit switch 10, limit cam 11, potentiometre drive gear axle 12, transition gear pair 13, cam drive gear axle 14, transition pinion I15, pivot 16, transition pinion II 17.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1-4, a gear positioning mechanism of a straight-stroke electric actuator comprises a housing 3, a rack guide frame 6 which is fixedly connected with the housing 3 through an inserted screw is arranged in the housing 3, a transmission assembly 5 is arranged between the rack guide frame 6 and the housing 3, the transmission assembly 5 comprises a transition gear pair 13, the transition gear pair 13 comprises a rotating shaft 16, a transition pinion I15 which is nested with the rotating shaft 16 in a limiting manner and is meshed with the potentiometer drive gear shaft 12 is arranged between the rotating shaft 16 and the potentiometer drive gear shaft 12, a transition pinion II 17 which is nested with the rotating shaft 16 in a limiting manner is arranged between the rotating shaft 16 and a cam drive gear shaft 14 and between the rotating shaft 16 and the rack 4, and the transition pinion II 17 is meshed with the rack 4 and the cam drive gear shaft 14 for transmission. Circlip washers 8 are arranged between the cam driving gear shaft 14 and the rack guide frame 6, between the rotating shaft 16 and the rack guide frame 6 and between the rotating shaft 16 and the shell 3. The upper end of the transition gear pair 13 is provided with a potentiometer driving gear shaft 12 which is in tooth-shaped meshing with the transition gear pair 13 and is in transmission shaft type nested connection with the conductive potentiometer 9, and the lower end of the transition gear pair 13 is provided with a cam driving gear shaft 14 which is in tooth-shaped meshing with the transition gear pair 13 and is in transmission shaft type nested connection with the limiting cam 11. A rack 4 meshed with the transmission component 5 in a tooth form is arranged in the rack guide frame 6, and guide shaft sleeves 7 in guide type sleeve joint with the rack 4 are arranged between the two ends of the rack 4 and the rack guide frame 6. The tail end of the rack 4 is provided with a tension spring 2 which is sleeved with the rack 4, and the upper part and the lower part of the tension spring 2 are respectively provided with an installation fixing plate 1 which is fixedly connected with the shell 3 in an inserting and embedding limit type screw. The cross section of the mounting and fixing plate 1 is in an L-shaped structure. The end face of the shell 3 is provided with a conductive potentiometer 9 which is rotationally sleeved with the transmission component 5, a limit switch 10 which is fixedly connected with the shell 3 in a screw manner is arranged below the conductive potentiometer 9, and a limit cam 11 which is rotationally sleeved with the transmission component 5 and movably contacted with the limit switch 10 is arranged between the limit switch 10 and the conductive potentiometer 9.
The tension spring 2 is simultaneously connected with a stroke limiting pin in the straight stroke electric actuator, and the rack 4 is driven to move up and down through the up-and-down displacement of the stroke limiting pin. The rack 4 drives the transition pinion II 17 to rotate in a reciprocating mode, so that the cam driving gear shaft 14 drives the limiting cam 11 to rotate in a reciprocating mode and to movably contact with the limiting switch 10 to control generation of an electric signal, and meanwhile the potentiometer driving gear shaft 12 is driven by the transition pinion I15 to achieve the operation process of the conductive potentiometer 9.
In conclusion, the gear positioning mechanism of the straight-stroke electric actuator has the characteristics of simple structure, high accuracy of positioning of the running stroke and good stability. The problem of frequent start-up cause the operation stroke accumulative error big is solved. The adjustability of the straight-stroke electric actuator is improved, and the function of conveniently correcting stroke errors is achieved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. 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.
In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (7)
1. The utility model provides a straight stroke electric actuator gear positioning mechanism which characterized in that: comprises a shell (3), a rack guide frame (6) which is fixedly connected with the shell (3) through screws is arranged in the shell (3), a transmission component (5) is arranged between the rack guide frame (6) and the shell (3), a rack (4) which is in tooth-shaped meshing with the transmission component (5) is arranged in the rack guide frame (6), the tail end of the rack (4) is provided with a tension spring (2) which is sleeved with the rack (4), the end surface of the shell (3) is provided with a conductive potentiometer (9) which is rotationally sleeved with the transmission component (5), a limit switch (10) which is fixedly connected with the shell (3) in a screw manner is arranged below the conductive potentiometer (9), and a limit cam (11) which is rotationally sleeved with the transmission component (5) and movably contacted with the limit switch (10) is arranged between the limit switch (10) and the conductive potentiometer (9).
2. The linear electric actuator gear positioning mechanism of claim 1, wherein: transmission component (5) including transition gear pair (13), transition gear pair (13) upper end be equipped with transition gear pair (13) looks tooth form meshing and with conductive potentiometer (9) looks transmission shaft type nested connection's potentiometer drive gear axle (12), transition gear pair (13) lower extreme be equipped with transition gear pair (13) looks tooth form meshing and with spacing cam (11) looks transmission shaft type nested connection's cam drive gear axle (14).
3. The linear electric actuator gear positioning mechanism of claim 2, wherein: transition gear pair (13) including pivot (16), pivot (16) and potentiometre drive gear axle (12) between be equipped with pivot (16) limit for a definite time nestification mutually and with potentiometre drive gear axle (12) looks tooth form meshing's transition pinion I (15), pivot (16) and cam drive gear axle (14) between, pivot (16) and be equipped with between rack (4) and be equipped with pivot (16) limit for a definite time nestification transition pinion II (17), transition pinion II (17) and rack (4), cam drive gear axle (14) looks tooth form meshing transmission.
4. The linear electric actuator gear positioning mechanism of claim 3, wherein: and snap spring gaskets (8) are arranged between the cam driving gear shaft (14) and the rack guide frame (6), between the rotating shaft (16) and the rack guide frame (6) and between the rotating shaft (16) and the shell (3).
5. The linear electric actuator gear positioning mechanism of claim 1, wherein: and a guide shaft sleeve (7) which is in guide type sleeve joint with the rack (4) is arranged between the two ends of the rack (4) and the rack guide frame (6).
6. The linear electric actuator gear positioning mechanism of claim 1, wherein: the upper part and the lower part of the tension spring (2) are respectively provided with an installation fixing plate (1) which is fixedly connected with the shell (3) through screws.
7. The linear electric actuator gear positioning mechanism of claim 6, wherein: the cross section of the mounting and fixing plate (1) is of an L-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703016.XU CN212226141U (en) | 2020-04-30 | 2020-04-30 | Gear positioning mechanism of straight-stroke electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703016.XU CN212226141U (en) | 2020-04-30 | 2020-04-30 | Gear positioning mechanism of straight-stroke electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212226141U true CN212226141U (en) | 2020-12-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020703016.XU Active CN212226141U (en) | 2020-04-30 | 2020-04-30 | Gear positioning mechanism of straight-stroke electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212226141U (en) |
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2020
- 2020-04-30 CN CN202020703016.XU patent/CN212226141U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 311256 floor 1-2, building 2, Hangzhou Hengli Bearing Co., Ltd., maoshantou village, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Shenjun automatic control instrument Co.,Ltd. Address before: 311261 Dashi Gai village, Dashun Town, Xiaoshan District, Hangzhou, Zhejiang Patentee before: Hangzhou Shenjun automatic control instrument Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A gear positioning mechanism for straight stroke electric actuator Effective date of registration: 20210802 Granted publication date: 20201225 Pledgee: Changhe Branch of Hangzhou United Rural Commercial Bank Co.,Ltd. Pledgor: Hangzhou Shenjun automatic control instrument Co.,Ltd. Registration number: Y2021330001051 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |