CN209014985U - Small torque executing agency torque signal detection and enlarger - Google Patents
Small torque executing agency torque signal detection and enlarger Download PDFInfo
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- CN209014985U CN209014985U CN201822186780.XU CN201822186780U CN209014985U CN 209014985 U CN209014985 U CN 209014985U CN 201822186780 U CN201822186780 U CN 201822186780U CN 209014985 U CN209014985 U CN 209014985U
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Abstract
The utility model provides small torque executing agency torque signal detection and enlarger, including the upper cover plate fixed with executing agency, microswitch on upper cover plate is set, the fan-shaped internal gear of upper cover plate lower part is set, the small tooth shaft of torque, it is opened to torque cam and closes to torque cam, axis is equipped at the center of fan-shaped internal gear, axis is arranged across upper cover plate, small axis is equipped in the bottom of fan-shaped internal gear, small axis is caught in the annular groove of worm shaft one end of executing agency, gear internal messing on fan-shaped internal gear and the small tooth shaft of torque cooperates, the small tooth shaft of torque is successively set with pass to torque cam after passing through upper cover plate and is opened to torque cam, the top of axis and the small tooth shaft of torque passes through a split washer axial restraint, it is opened to torque cam and closes to torque cam interlaced arrangement, be opened to torque cam and close to torque cam respectively with a microswitch Reed matches, interlaced arrangement above and below two microswitches.The utility model is compact-sized, control repeatable accuracy is higher, easy to adjust.
Description
Technical field
The utility model belongs to electric operator technical field, more particularly, to a kind of small torque executing agency torque
Signal detection and enlarger.
Background technique
The Torque test of electric valve executing mechanism is for setting the specified of electric valve executing mechanism with control mechanism
Output torque, electric operator in operation, when the setting value as defined in operate torque and reach, torque mechanism is dynamic
Make, disconnect electric contact, to cut off the power, electric operator is made to stop working, so that it is guaranteed that executing machine in electric valve
When over torque failure occurs for structure (or electric device for valve), valve and executing agency itself are protected.Torque test signal
During electric operator with carrying row, the axial displacement signal of worm shaft, then pass through reciprocating mechanism for straight line
Displacement is converted to angle signal.The axial straight-line displacement of worm shaft and the size of actuator shaft torque are positively correlated, especially
When electric valve executing mechanism rated output torque is smaller, the axial straight-line displacement very little of worm shaft is converted by crank throw
Angle afterwards is also very small, and the default setting debugging of executing agency's rated output torque is very inconvenient, it is larger to repeat deviation.Thus
It is necessary to design a kind of Torque test and control mechanism compact-sized, control repeatable accuracy is higher, easy to adjust, to meet valve
Door requires the direct torque of executing agency and protection.
Summary of the invention
In view of this, the utility model is directed to a kind of small torque executing agency torque signal detection and enlarger
Structure, it is compact-sized, control repeatable accuracy it is higher, easy to adjust.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of small torque executing agency torque signal detection and enlarger, including the upper cover fixed with executing agency
Plate, the fan-shaped internal gear that upper cover plate lower part is arranged in, the small tooth shaft of torque, is opened to torque at the microswitch being arranged on upper cover plate
It cam and closing to torque cam, axis is equipped at the fan-shaped internal gear centre, the axis passes through upper cover plate setting,
The bottom of the fan-shaped internal gear is equipped with small axis, and the small axis is caught in the annular groove of worm shaft one end of executing agency, described
Fan-shaped internal gear and the small tooth shaft of torque on gear internal messing cooperate, the small tooth shaft of the torque pass through upper cover plate after successively cover
Dress closes to torque cam and is opened to torque cam, and the top of the axis and the small tooth shaft of the torque passes through a split washer
Axial restraint, described is opened to torque cam and closes to torque cam interlaced arrangement, and described is opened to torque cam and Guan Xiangli
Square cam is respectively matched with the reed of a microswitch, interlaced arrangement above and below two microswitches.
Further, described to be opened to torque cam and close to torque cam pass through the interior fixation of hexagon concave-end locking screw 4
In the small tooth shaft of torque.
Further, described to be opened to torque cam and close be equipped with cam adjusting pad between torque cam.
Further, the microswitch is fixed on upper cover plate by Cross Recess Head Screw, spring washer and small washer
On.
Further, the fan-shaped internal gear, axis and small axis are an integral structure.
Further, the end of the axis and the small tooth shaft of torque is equipped with the groove for accommodating split washer.
Compared with the existing technology, a kind of small torque executing agency torque signal detection described in the utility model and amplification
Mechanism has the advantage that
Small torque executing agency torque signal detection and enlarger described in the utility model, to the angle after conversion
Multiple amplification is carried out, compact-sized, control repeatable accuracy is higher, torque setting is easy to adjust, has better meet valve pair
The direct torque of executing agency and protection require；Small torque electric valve executing mechanism work when, worm shaft generation open (pass) to
Thin tail sheep axial movement is protruded above the small axis come by fan-shaped internal gear bottom face and fan-shaped internal gear is driven to generate low-angle turn
Angular displacement (swing) drives the small tooth shaft of torque to turn large rotation angle, to drive after the amplification of fan-shaped internal gear transmission multiple
Open (pass) being sleeved in the small tooth shaft of torque rotates to torque cam and presses to corresponding microswitch, cuts off the power, makes electronic
Executing agency stops working, and executes control and the defencive function of torque.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the knot of small torque executing agency torque signal detection and enlarger described in the utility model embodiment
Structure schematic diagram；
Fig. 2 is the office of small torque executing agency torque signal detection and enlarger described in the utility model embodiment
Portion's top view；
Fig. 3 is the structural schematic diagram of fan-shaped internal gear；
Fig. 4 is the sectional view along A-A of Fig. 2.
Description of symbols:
1- sector internal gear, 2- split washer, the small tooth shaft of 3- torque, hexagon concave-end locking screw in 4-, the adjustment of 5- cam
Pad, 6- are opened to torque cam, 7- Cross Recess Head Screw, 8- spring washer, 9- small washer, 10- microswitch, 11- upper cover plate,
12- is closed to torque cam, 13- axis, the small axis of 14-, 15- worm shaft.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As Figure 1-Figure 4, a kind of small torque executing agency torque signal detection and enlarger, including with execute machine
The fixed upper cover plate 11 of structure, the microswitch 10 being arranged on upper cover plate 11, the fan-shaped internal gear that 11 lower part of upper cover plate is set
1, the small tooth shaft 3 of torque, be opened to torque cam 6 and close to torque cam 12, the centre of the fan-shaped internal gear 1 is equipped with axis
13, the axis 13 is arranged across upper cover plate 11, is equipped with small axis 14, the small axis in the bottom of the fan-shaped internal gear 1
14 are caught in the annular groove of 15 one end of worm shaft of executing agency, nibble in the fan-shaped internal gear 1 and the gear in the small tooth shaft 3 of torque
Cooperation is closed, the small tooth shaft 3 of the torque is successively set with pass to torque cam 6 after passing through upper cover plate 11 and is opened to torque cam 12,
The top of the axis 13 and the small tooth shaft 3 of torque passes through 2 axial restraint of a split washer, and described to be opened to torque convex
It takes turns 6 and closes to 12 interlaced arrangement of torque cam, described is opened to torque cam 6 and closes to torque cam 12 respectively open with a fine motion
The reed of pass 10 matches, two about 10 interlaced arrangements of microswitch.
It is opened to torque cam 6 and closes to torque cam 12 be fixed on the small tooth of torque by interior hexagon concave-end locking screw 4
On axis 3.
It is opened to torque cam 6 and closes be equipped with cam adjusting pad 5 between torque cam 12.
Microswitch 10 is fixed on upper cover plate 11 by Cross Recess Head Screw 7, spring washer 8 and small washer 9.
Fan-shaped internal gear 1, axis 13 and the manufacture of 14 integrated injection molding of small axis, and material is POM.
The gear material of the small tooth shaft 3 of torque is POM, and the material of tooth shaft is copper, and when injection molding, the tooth shaft processed is embedded in tooth
In wheel, it is integrally formed.
The end of axis 13 and the small tooth shaft 3 of torque is equipped with the groove for accommodating split washer 2.
Fig. 4 is the A-A direction view of Fig. 2, it is shown that small torque executing agency torque signal detection and enlarger and snail
The contact of bar axis, the course of work of the utility model is: when small torque electric valve executing mechanism with carries work, worm shaft 15 is generated
Open (pass) to thin tail sheep move axially, by fan-shaped 1 bottom face of internal gear protrude above come small axis 14 drive fan-shaped internal gear 1
It generates low-angle corner displacement (swing), since fan-shaped internal gear 1 cooperates with the gear internal messing in the small tooth shaft 3 of torque,
It is driven by fan-shaped internal gear 1, drives the small 3 turns of large rotation angles of tooth shaft of torque, be sleeved in the small tooth shaft 3 of torque to drive
It opens (pass) and corresponding microswitch 10 is rotated and pressed to torque cam, cut off the power, electric operator is made to stop working, hold
The control of row torque and defencive function.
Example illustrates the amplification principle of small torque executing agency torque signal detection and enlarger: fan-shaped internal gear 1
Center is away from the number of teeth for 15mm, fan-shaped internal gear 1 between the small axis 14 and its upper right quarter axis 13 that lower left quarter bottom surface protrudes above
55, the pinion gear number of teeth of the small tooth shaft 3 of torque is 10.Small 3 corner of the tooth shaft amplification of torque is described as follows: as small torque electric valve is held
The axial displacement of worm shaft is 2mm when row mechanism exports nominal torque, then the pivot angle that fan-shaped internal gear 1 generates is α=asin (2/
15)=7.66 °, the transmission speed ratio of fan-shaped internal gear 1 is i=55/10=5.5, and after the transmission of fan-shaped internal gear 1, pivot angle is just
5.5 times are exaggerated, pivot angle value is 7.66 × 5.5=42.14 °.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of small torque executing agency torque signal detection and enlarger, it is characterised in that: including solid with executing agency
Fixed upper cover plate (11), setting on upper cover plate (11) microswitch (10), be arranged in the sector of upper cover plate (11) lower part
Gear (1), the small tooth shaft of torque (3) are opened to torque cam (6) He Guanxiang torque cam (12), in the fan-shaped internal gear (1)
Axis (13) are equipped at center portion position, the axis (13) is arranged across upper cover plate (11), in the bottom of the fan-shaped internal gear (1)
Equipped with small axis (14), the small axis (14) is caught in the annular groove of worm shaft (15) one end of executing agency, the fan-shaped internal tooth
The gear internal messing taken turns in (1) and the small tooth shaft of torque (3) cooperates, the small tooth shaft of the torque (3) pass through after upper cover plate (11) according to
Secondary suit is opened to torque cam (6) He Guanxiang torque cam (12), the top of the axis (13) and the small tooth shaft of the torque (3)
By a split washer (2) axial restraint, described torque cam (6) the He Guanxiang torque cam (12) that is opened to interlocks cloth at end
It sets, torque cam (6) the He Guanxiang torque cam (12) that is opened to respectively is matched with the reed of a microswitch (10), and two
A microswitch (10) interlaced arrangement up and down.
2. small torque executing agency torque signal detection and enlarger according to claim 1, it is characterised in that: institute
It states and is opened to torque cam (6) He Guanxiang torque cam (12) the small tooth of torque is fixed on by interior hexagon concave-end locking screw (4)
On axis (3).
3. small torque executing agency torque signal detection and enlarger according to claim 2, it is characterised in that: institute
It states and is opened to be equipped with cam adjusting pad (5) between torque cam (6) He Guanxiang torque cam (12).
4. small torque executing agency torque signal detection and enlarger according to claim 1, it is characterised in that: two
A microswitch (10) is fixed on upper cover plate by Cross Recess Head Screw (7), spring washer (8) and small washer (9)
(11) on.
5. small torque executing agency torque signal detection and enlarger described in any one of -4 according to claim 1,
Be characterized in that: the sector internal gear (1), axis (13) and small axis (14) are an integral structure.
6. small torque executing agency torque signal detection and enlarger according to claim 1 or 2, feature exist
In: the end of the axis (13) and the small tooth shaft of torque (3) is equipped with the groove of receiving split washer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186780.XU CN209014985U (en) | 2018-12-25 | 2018-12-25 | Small torque executing agency torque signal detection and enlarger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186780.XU CN209014985U (en) | 2018-12-25 | 2018-12-25 | Small torque executing agency torque signal detection and enlarger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209014985U true CN209014985U (en) | 2019-06-21 |
Family
ID=66844152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822186780.XU Expired - Fee Related CN209014985U (en) | 2018-12-25 | 2018-12-25 | Small torque executing agency torque signal detection and enlarger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209014985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109460081A (en) * | 2018-12-25 | 2019-03-12 | 常州机电职业技术学院 | A kind of torque signals detection and enlarger for small torque executing agency |
-
2018
- 2018-12-25 CN CN201822186780.XU patent/CN209014985U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109460081A (en) * | 2018-12-25 | 2019-03-12 | 常州机电职业技术学院 | A kind of torque signals detection and enlarger for small torque executing agency |
| CN109460081B (en) * | 2018-12-25 | 2023-11-24 | 常州机电职业技术学院 | Moment signal detection and amplification mechanism for small-torque actuating mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190621 Termination date: 20211225 |