CN2809852Y

CN2809852Y - Pressure controller

Info

Publication number: CN2809852Y
Application number: CN 200520115321
Authority: CN
Inventors: 何友华
Original assignee: QIN YINGXIANG
Current assignee: QIN YINGXIANG
Priority date: 2005-07-24
Filing date: 2005-07-24
Publication date: 2006-08-23
Anticipated expiration: 2015-07-24

Abstract

The utility model relates to a pressure controller which solves the problems of inconvenient on-site use, fussy setting procedure and low setting precision of the pressure controller used at present. The utility model is characterized in that the pressure controller is composed of a pressure display part and a pressure control part which is formed by the way that the rear end face of a machine frame (25) is provided with a machine core control shaft (8) coaxial to a pressure machine core shaft (15), wherein the inner end of the machine core control shaft (8) is sheathed with a machine core control gear (10) connected with a control sector-shaped tooth (22); the control sector-shaped tooth (22) is connected with a control pull rod (23) connected with a control end plug (24) and a control spring pipe (1); the machine core control shaft (8) penetrates through a shaft sleeve (6), an end head of which is fixed with a cam (5); a big gear (7) is sheathed outside the shaft sleeve (6), and a fixing block (2) is sheathed inside the shaft sleeve (7); a spring washer (3) is arranged between the big gear (7) and the fixing block (2); the fixing block (2) is fixed on the machine frame (25) by using screws; the outer side of the shaft sleeve (6) is provided with a micro switch (1); a small gear (9) is provided to be connected with the big gear (7); a regulating shaft, one end of which is vertically sheathed with the small gear (9) and the other end of which penetrates through the machine frame (25) and a dial plate (16), is provided; an end head of the dial plate (16) is sheathed with a control handle (12) vertically exposed outside the dial plate (16); one end of the control handle (12) provided with a control indicating needle (20) is fixed on the big gear (7), and the other end of the control handle (12) passes by a machine core to expose the dial plate (16) in parallel. The utility model is suitable for the manufacture of mechanical instrument industry, is suitable for.

Description

Pressure controller

Technical field:

The utility model belongs to machinery manufacturing technology field, is specifically related to a kind of mechanical compression controller, is applicable to the indication and the control of pressure, vacuum and the pressure vacuum of non-coagulability, non-crystallizable medium, and provides Passive Shape Control to set.

Background technology:

Known to the inventor, pressure controller in the market, substantially be by the terminal micro limit switch that directly triggers of manometric bomb reed pipe, break-make by travel switch, the control of realization pressure, the setting at control point must be at active (pressure, vacuum and pressure vacuum) under the state, set by reference standard pressure device, have on-the-spot inconvenience, the defective that assignment procedure is loaded down with trivial details and setting accuracy is low, the purpose of this utility model used, be under the present passive states for remedying a kind of that above deficiency provides exactly, the setting of pressure control point, convenient on-the-spot the use improved control precision and the pressure controller that switches precision.

Technology contents:

The utility model is achieved in that a kind of pressure controller is made up of pressure pointer (13), forcing press core gear (14), forcing press mandrel (15), dial plate (16), pressure sector (17), pressure pull bar (18), pressure plug (19), compression spring pipe (21).It is characterized in that at the rear end face of frame (25) and forcing press mandrel (15) the controller mandrel (8) that be arranged in parallel, be nested with a controller core gear (10) in the inner end of controller mandrel (8), controller core gear (10) is gone up connection control sector (22) and (is connected control pull rod (23) on 22 again at the control sector, on control pull rod (23), be connected with control plug (24), control spring pipe (1), pass axle sleeve (6) at controller mandrel (8), termination stationary cam (5), at axle sleeve (6) overcoat gear wheel (7), in overlap fixed block (2), be provided with a spring washer (3) between gear wheel (7) and the fixed block (2), use screw that fixed block (2) is fixed in frame (25), axle sleeve (6) arranged outside has a microswitch (4), connect gear wheel (7) and be provided with a pinion (9), one regulating shaft (11) vertical sleeve is set places pinion (9), pass frame (25) and dial plate (16), the termination is nested with a joystick (12), and joystick (12) vertically exposes to dial plate (16).Steering needle (20) one ends are fixed on the gear wheel (7), and the other end is appeared in dial plate (16) around movement is parallel.Pressure controller of the present utility model has the indication of the pressure of realization, realizes controlled function, realizes the advantage that passive pressure control point is set.

1, the realization of its pressure indication: the pressure of medium causes the distortion of compression spring pipe (21), via pressure plug (19), by pressure pull bar (18) deflection is delivered to pressure sector (17), pass to forcing press core gear (14) again through the pressure sector, the forcing press core gear drives forcing press mandrel (15) rotation, is that the pressure pointer (13) that is fixed on its front end is gone up indicated pressure at graduated dial plate (16).

2, the realization of controlled function is by the distortion at the control spring pipe (1) of same pressure source, via control plug (24), by control pull rod (23) deflection is delivered to control sector (22), pass to controller core gear (10) again through sector, movement gear driven controller mandrel (8) rotation makes cam (5) rotation that is fixed on its front end, and cam touches the contact that is fixed on the sensitive switch (4) on gear wheel (7) dish, by the break-make of sensitive switch, realize pressure control.

3, the setting of passive pressure control point is achieved in that the pressure switch that adjustment is qualified, in use, only need Spin Control handle (12), drive pinion (9) by it through regulating shaft (11), pinion is delivered to gear wheel (7), gear wheel is fixed on the fixed disk (2) by axle sleeve (6) and spring washer (3), the variation of the contact position of gear wheel rotation causing sensitive switch fixed thereon (4), this variable quantity by steering needle (20) extension on dial plate (16), the position of expressing pressure set-point.

Its operation principle: the one, the dual spring pipe under the same pressure source [compression spring pipe (21), control spring pipe (1)], at same pressure source, the manometric bomb reed pipe of two same sizes, performance, the two strain changes synchronously, realize the pressure indication for one, another (or a plurality of) realize pressure control function, and the pressure of two bourdon tube impressions is identical when pressure measurement, utilize the consistency of the two to change, as the foundation at setting pressure control point; The 2nd, instrument indication and control section are separate, adopt separately independently pressure transmission amplifying device, have reduced mutual interference, thereby have guaranteed precision separately; The 3rd, the element that touches micro limit switch (4) contact is to adopt cam (5) mechanism that is driven by machine mandrel (8), micro limit switch to be installed on concentric gear wheel (7) dish of and machine mandrel.Pressure changes and causes the variable quantity of control spring pipe (1), amplification through movement, be delivered to machine mandrel (8), the end in machine mandrel is installed a cam (5), cam rotates with machine mandrel, thereby touch travel switch, realize control switch, be mounted in the machine mandrel owing to touch the element cam of micro limit switch contact, pressure variety herein is exaggerated, thereby has improved the control precision of pressure controller.

Description of drawings:

Accompanying drawing is the pressure controller structure chart

Among the figure: 1. control spring pipe, 2. fixed block, 3. spring washer, 4. microswitch, 5. cam, 6. axle sleeve, 7. gear wheel, 8. machine mandrel, 9. pinion, 10. controller core gear, 11, regulating shaft, 12. joysticks, 13. pressure pointers, 14. forcing press core gears, 15. the forcing press mandrel, 16. dial plates, 17. pressure sectors, 18. pressure pull bars, 19. the pressure plug, 20. expansion pointers, 21 compression spring pipes, 22. control sectors, 23. control pull rod, 24. control plugs, 25. frames

Specific embodiments:

Providing embodiment below in conjunction with accompanying drawing is described in further detail of the present utility model, the pressure display part of pressure controller is as shown in drawings, forcing press mandrel (a 15) vertical fixing be arranged in parallel in the front end of frame (25), the inner end cover one that leans at forcing press mandrel (15) is put forcing press core gear (14) at the last pressure sector (17) that connects of forcing press core gear (14), on pressure sector (17), connect a pressure pull bar (18) again, the other end at pressure pull bar (18) is connected with pressure plug (19) and compression spring pipe (21), dial plate (16) is set, make its center be fixed on the outside on the forcing press mandrel (15), the end that pressure pointer (13) is set is fixed on dial plate (16) the decomposition pressure in parallel in addition display part on the forcing press mandrel (15); At the rear end face of frame (25) and forcing press mandrel (15) the controller mandrel (8) that be arranged in parallel, be nested with a controller core gear (10) in the inner end of controller mandrel (8), controller core gear (10) is gone up connection control sector (22) and connect control pull rod (23) again on control sector (22), on control pull rod (23), be connected with control plug (24), control spring pipe (1), pass axle sleeve (6) at controller mandrel (8), end stationary cam (5), at axle sleeve (6) overcoat gear wheel (7), in overlap fixed block (2), be provided with a spring washer (3) between gear wheel (7) and the fixed block (2), with screw fixed block (2) is fixed on the frame (25), arranged outside is established in axle sleeve (6) outside a microswitch (4), connect gear wheel (7) and be provided with a pinion (9), a regulating shaft (11) vertical sleeve is set places pinion (9), pass frame (25) and dial plate (16), the termination is nested with a joystick (12), and joystick (12) vertically exposes to dial plate (16).Steering needle (20) one ends are fixed on the gear wheel (7), and the other end is appeared in dial plate (16) around movement is parallel.The utility model is suitable for machinery instrument manufacturing works to be produced, and is applicable to the indication and the control of pressure, vacuum and the pressure vacuum of non-coagulability, non-crystallizable medium, and provides Passive Shape Control to set.

Claims

1. a pressure controller is made up of pressure pointer (13), forcing press core gear (14), forcing press mandrel (15), dial plate (16), pressure sector (17), pressure pull bar (18), pressure plug (19), compression spring pipe (21).It is characterized in that rear end face and the coaxial controller mandrel (8) that is provided with of forcing press mandrel (15) in frame (25), be nested with a controller core gear (10) in the inner end of controller mandrel (8), controller core gear (10) is gone up and is connected control sector (22), on control sector (22), connect a control pull rod (23) again, on control pull rod (23), be connected with control plug (24) and control spring pipe (1), pass axle sleeve (6) at controller mandrel (8), termination stationary cam (5), at axle sleeve (6) overcoat gear wheel (7), in overlap fixed block (2), be provided with a spring washer (3) between gear wheel (7) and the fixed block (2), fixed block (2) be fixed on the frame (25) with screw.

2. the pressure controller shown in claim 1, its feature also is in axle sleeve (6) arranged outside one microswitch (4) is arranged.

3. the pressure controller shown in claim 1, its feature also is to connect gear wheel (7) and is provided with a pinion (9), one regulating shaft (11) one end vertical sleeves are set place pinion (9), the other end passes frame (25) and dial plate (16), the termination is nested with a joystick 12), joystick (12) vertically exposes to dial plate (16).

4. the pressure controller shown in claim 1, its feature also is to be provided with steering needle (20) one ends and is fixed on the gear wheel (7), and the other end is appeared in dial plate (16) around movement is parallel.