CN103375640A - Transmission device for valve opening and closing control device - Google Patents
Transmission device for valve opening and closing control device Download PDFInfo
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- CN103375640A CN103375640A CN201310279890XA CN201310279890A CN103375640A CN 103375640 A CN103375640 A CN 103375640A CN 201310279890X A CN201310279890X A CN 201310279890XA CN 201310279890 A CN201310279890 A CN 201310279890A CN 103375640 A CN103375640 A CN 103375640A
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- axle sleeve
- worm
- transmission device
- gear
- worm screw
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Abstract
The invention discloses a transmission device for a valve opening and closing control device. The transmission device comprises a shell (1), a worm gear (2) and a worm. A rotary shaft is arranged in the shell (1), and the worm gear (2) is fixedly mounted on the rotary shaft. The transmission device further comprises a shaft sleeve (4) which is mounted on the shell (1) and which can rotate on the shell (1). The worm gear (2) is mounted in the shell (1) through the shaft sleeve (4) and can rotate in the shaft sleeve (4). The outer circular axis of the shaft sleeve (4) drifts from the inner circular axis of the shaft sleeve (4), and drifting amount is e. Tooth shape of the worm gear (2) matches with that of the worm; a clutch mechanism is arranged on the shaft sleeve (4) and can operate the shaft sleeve (4) to rotate so as to allow the worm and the worm gear (2) to engage or disengage. when a pneumatic system failure occurs, the transmission device can replace the pneumatic system to control a valve, opening and closing of a hot blast valve are realized, and normal operation and normal production of a melting iron blast furnace production line can be guaranteed.
Description
Technical field
The invention belongs to invention control gear field, relate in particular to a kind of transmission device of valve opening and closing control gear.
Background technique
Demand according to the user of iron and steel enterprise: the hot-blast valve that the molten iron blast furnace uses, adopt pneumatic system control, namely come opening/shutting valve by pneumatic piston rod upper and lower displacement chain drive-belt and sprocket wheel.But the production on-site environment temperature is higher, easily cause the rubber seal of pneumatic system aging, and the pressurized air that arrives is revealed.Affect sealability, make the pneumatic piston rod cisco unity malfunction, or Hot-blast valve closes voluntarily, and without emergent solution, become potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention provides a kind of when pneumatic system breaks down, and can replace the transmission device of the valve opening and closing control gear of pneumatic system control.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of transmission device of valve opening and closing control gear, comprise housing, worm gear and worm screw, and be provided with rotating shaft in the described housing, described worm gear is fixedly mounted in the rotating shaft; Also comprise axle sleeve, described axle sleeve is installed on the housing, and can rotate at housing, and described worm screw is installed in the housing by axle sleeve, and can rotate in axle sleeve; Described sleeve outer circle axis and inner circle axis runout, side-play amount are e; The profile of tooth of described worm gear and worm screw is suitable, and described axle sleeve is provided with clutch mechanism, and clutch mechanism can be handled axle sleeve and rotate, and makes the worm and wheel engagement or breaks away from engagement.
Described axle sleeve has two, and axle sleeve is connected by bearing with worm screw.
Side-play amount
, wherein 2b is the whole depth of worm and gear, α is in the cross section of axle sleeve, and when worm gear and worm meshing state, the angle of axle sleeve inside and outside circle circle center line connecting and vertical direction; In the cross section of axle sleeve, sleeve outer circle center and worm gear center line have an offset distance h, h=btan α in the horizontal direction.
Worm gear and worm screw modulus are that 4, α is 30o, and side-play amount e is 5.196 mm, offset distance h=2.598 mm.
Described housing is provided with pin assembly, and described pin assembly comprises the spiral shell seat, and is provided with positioning rod and packs in the described spiral shell seat and can slide in the spiral shell seat, is set with Compress Spring on the described positioning rod, and described spiral shell seat end is provided with pull handle; When being respectively equipped with corresponding worm gear with worm meshing on the described axle sleeve, the positioning hole when worm gear separates with worm screw, described positioning hole and positioning rod are suitable.
Also comprise position limit switch, when worm gear and worm meshing, axle sleeve can touch position limit switch, and described position limit switch is connected with pneumatic system.
Described clutch mechanism comprises handle, and described handle and axle sleeve are affixed.
Described worm screw one end is connected with handle.
The invention has the advantages that, when pneumatic system is working properly, the clutch mechanism of transmission device is thrown off worm and worm wheel---separated state, locked by pin assembly, prevent slippage, the pneumatic piston rod upper and lower displacement drives chain opens and closes hot blast slide valve, rotates as the chain of chain idle wheel thereupon, and the worm gear of installing with sprocket coaxiality is also in idle running, and pneumatic system can normally be controlled the keying of hot-blast valve.
When pneumatic system breaks down inefficacy, the clutch mechanism of transmission device can be pulled to engagement, the pin assembly locking is arranged equally, when clutch mechanism puts in place simultaneously, touch position limit switch, through electricity---gas control system, change the loop of pneumatic system, make the pneumatic system off-load, piston rod is quick condition, manually rotate again the handle on this transmission device worm screw, make worm drive worm gear and coaxial mounted sprocket wheel, the chain through connecting with hot blast slide valve, lifting hot blast slide valve, realize the keying of hot-blast valve, guarantee normal operation and the safety in production of molten iron blast furnace production line.
Description of drawings
Fig. 1 is the structural representation of the transmission device of a kind of valve opening and closing control gear of the present invention;
Fig. 2 is the structural representation of the transmission device of Fig. 1 valve opening and closing control gear;
Fig. 3 is that the A of Fig. 1 is to view;
Fig. 4 is the structural representation of pin assembly;
Fig. 5 is the schematic representation of axle sleeve cross section;
Mark among the above-mentioned figure is: 1, housing, 2, worm gear, 3, worm screw, 4, axle sleeve, 41, positioning hole, 5, handle, 6, handle, 7, pin assembly, 71, positioning rod, 72, the spiral shell seat, 73, Compress Spring, 74, pull handle, 8, position limit switch.
Embodiment
Fig. 1 and Fig. 2 are the structural representation of the transmission device of a kind of valve opening and closing control gear of the present invention, comprise housing 1, worm gear 2 and worm screw 3, are provided with rotating shaft in the housing 1, and worm gear 2 is fixedly mounted in the rotating shaft; Also comprise axle sleeve 4, axle sleeve 4 is installed on the housing 1, and can rotate at housing 1, and worm screw 3 is installed in the housing 1 by axle sleeve 4, and can be in axle sleeve 4 interior rotations; Axle sleeve 4 cylindrical axis and inner circle axis runout, side-play amount is e; The profile of tooth of worm gear 2 and worm screw 3 is suitable, and axle sleeve 4 is provided with clutch mechanism, and clutch mechanism can be handled axle sleeve 4 and rotate, and makes worm screw 3 with worm gear 2 engagements or breaks away from engagement.Axle sleeve 4 has two, and axle sleeve 4 and worm screw 3 are connected by bearing.Clutch mechanism comprises handle 5, and handle 5 is affixed with axle sleeve 4.Worm screw 3 one ends are connected with handle 6.
As shown in Figure 5, side-play amount
, wherein 2b is the whole depth of worm and gear, α is in the cross section of axle sleeve 4, and when worm gear 2 and worm screw 3 engagement, the angle of axle sleeve 4 inside and outside circle circle center line connectings and vertical direction; In the cross section of axle sleeve 4, axle sleeve 4 cylindrical centers and worm gear 2 center lines have an offset distance h, h=btan α in the horizontal direction.
Worm gear 2 and worm screw 3 moduluses are that 4, α is 30o, and side-play amount e is 5.196 mm, offset distance h=2.598 mm.
Fig. 3 be the A of Fig. 1 to view, also comprise position limit switch 8, when worm gear 2 and worm screw 3 engagement, axle sleeve 4 can touch position limit switch 8, position limit switch 8 is connected with pneumatic system.
Fig. 4 is the structural representation of pin assembly, housing 1 is provided with pin assembly 7, and pin assembly 7 comprises spiral shell seat 72, and is provided with that positioning rod 71 is packed in the spiral shell seat 72 and can be in the 72 interior slips of spiral shell seat, be set with Compress Spring 73 on the positioning rod 71, spiral shell seat 72 ends are provided with pull handle 74; Positioning hole 41 when being respectively equipped with corresponding worm gear 2 with worm screw 3 engagement on the axle sleeve 4, when worm gear 2 separates with worm screw 3, positioning hole 41 is suitable with positioning rod 71.
1, design calculation process
A-worm and worm gear engagement axle center is apart from 2b-worm and worm gear tooth engagement height (whole depth)
O
1Worm screw axle center O during-engagement
2-sleeve outer circle axle center (switching gyration center)
O
3-worm screw axle center d-O when separating
1The rotary track diameter
The side-play amount in e-axle sleeve inside and outside circle axle center is O
1-O
2
The side-play amount of h-sleeve outer circle axle center on the x-x axis
α-O
1O
2With the angle β of vertical direction-axle sleeve angle of revolution
2b=ha+hf=m+1.25m=2.25m wherein.
1.1, realize that worm and worm gear break away from engagement, need at whole depth 2b of y-y axis runout.
1.2, worm screw 3 is circular movement with worm gear 2 out-of-gear running orbits, because of the particularity of worm screw 3 with worm gear 2 profiles of tooth, avoid in detach procedure, worm screw 3 end-tooth corridors and end-tooth corridor, worm gear 2 circular arc place interfere, make break away from accessible, need depart from h at the x-x axis.
1.3, for make the clutch of worm screw 3 accessible, simple and reliable, convenient operation, take at worm screw 3 two end axles shelves places, excentric sleeve 4 is set, its inside and outside circle offset is e, the distance of shaft centers O of two excentric sleeves, 4 cylindricals
1Depart from h.
Technological scheme adopts the rotation of axle sleeve 4, utilize side-play amount e, the cylindrical in its inside and outside circle axle center that side-play amount h is installed, to be centered in the worm screw 3 of axle sleeve 4 endoporus by near extremely far away, accessible move interfere to worm-gear tooth outside (namely from y, the x both direction withdraws from simultaneously) realize that namely worm tooth breaks away from worm-gear tooth, make separately without constraint.Beyond doubt suitable selection, it is as follows that it calculates deduction:
E=d/2 (formula 2)
H=btan α (formula 3)
1.4, this transmission device, calculate by above formula:
Because of tooth module m=4, thus 2b=2.25m=9, A=120mm.
h=4.5·tan30o=4.5·0.577＝2.598?mm
β=120o (being rotated counterclockwise)
1.5, realize the separation of worm and worm gear, two axle sleeves 4 are around O
2, be rotated counterclockwise 120o, make the worm screw axle center O that places endoporus
1Along the rotary track of d to O
3, at this moment, worm gear 2 centers (y-y axis) 2b=9mm has been departed from the worm screw center, and actual 2b is slightly larger than 9mm, so the engagement of worm and wheel 2 thoroughly separates, if will recover the engagement of worm and worm gear, 4 opposite spins of two axle sleeves get final product.
2, clutch mechanism
2.1, this mechanism is equipped with two axle sleeves 4 of bearing and handle 5 etc. by the worm screw two ends and forms, two axle sleeve 4 inside and outside circle desaxe amounts are e=5.196mm, two axle sleeve 4 cylindrical desaxe amount h=2.596mm.The worm and worm gear separation is on the Y-Y axis: switch handle 5 together with two axle sleeves, 4 synchronous turning anticlockwise 120o namely; The worm screw center O
1Around axle sleeve 4 gyration center O
2, rotation is worm screw axle center O to separating
3, increased 9mm apart from A=120mm this moment.The tooth engagement of worm and wheel 2 thoroughly breaks away from, and worm gear 2 can be without the constraint rotation.
3, pin assembly
Definite, reliable for the engaging position and the disengaging configuration that make worm and gear, pin assembly 7 must be set, it is comprised of positioning rod 71, spiral shell seat 72, pull handle 74, Compress Spring 73 etc.In two positions of axle sleeve 4 cylindricals (mesh and separate), positioning hole 41 is all arranged, so that switch when putting in place, pin assembly 7 is implemented locking.
4, hand-operated pneumatic electrical interlocks
For avoiding manual, pneumatic operation to interfere, cause equipment accident, be provided with interlocking, namely on the fixed frame of this device position limit switch 8 is installed, after clutch mechanism switched, worm and worm gear fixed on the locked position of separating or meshing, machinery through clutch mechanism touches, position limit switch 8 namely sends electrical signal, makes corresponding operation or off-load (the not working) state of entering of pneumatic system, guarantees safe operation.
After adopting such structure, when pneumatic system is working properly, the clutch mechanism of transmission device is thrown off worm screw 3 and worm gear 2---separated state, by pin assembly 7 lockings, prevent slippage, the pneumatic piston rod upper and lower displacement drives chain opens and closes hot blast slide valve, and sprocket wheel rotates thereupon, and the worm gear 2 of installing with sprocket coaxiality is also in idle running, and pneumatic system can normally be controlled the keying of hot-blast valve.
When pneumatic system breaks down inefficacy, the clutch mechanism of transmission device can be pulled to engagement, pin assembly 7 lockings are arranged equally, when clutch mechanism puts in place simultaneously, touch position limit switch 8, through electricity---gas control system, change the loop of pneumatic system, make the pneumatic system off-load, piston rod is quick condition, manually rotate again the handle 6 on this transmission device worm screw, make worm drive worm gear 2 and coaxial mounted sprocket wheel, the chain through connecting with hot blast slide valve, lifting hot blast slide valve, realize the keying of hot-blast valve, guarantee normal operation and the safety in production of molten iron blast furnace production line.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or without improving design of the present invention and technological scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (8)
1. the transmission device of a valve opening and closing control gear is characterized in that, comprises housing (1), worm gear (2) and worm screw (3), and described housing is provided with rotating shaft in (1), and described worm gear (2) is fixedly mounted in the rotating shaft; Also comprise axle sleeve (4), described axle sleeve (4) is installed on the housing (1), and can rotate at housing (1), and described worm screw (3) is installed in the housing (1) by axle sleeve (4), and can rotate in axle sleeve (4); Described axle sleeve (4) cylindrical axis and inner circle axis runout, side-play amount are e; The profile of tooth of described worm gear (2) and worm screw (3) is suitable, and described axle sleeve (4) is provided with clutch mechanism, and clutch mechanism can be handled axle sleeve (4) and rotate, and makes worm screw (3) with worm gear (2) engagement or breaks away from engagement.
2. the transmission device of valve opening and closing control gear as claimed in claim 1 is characterized in that, described axle sleeve (4) has two, and axle sleeve (4) is connected by bearing with worm screw (3).
3. the transmission device of valve opening and closing control gear as claimed in claim 1 or 2 is characterized in that, side-play amount
, wherein 2b is the whole depth of worm and gear, α is in the cross section of axle sleeve (4), and when worm gear (2) and worm screw (3) engagement, the angle of axle sleeve (4) inside and outside circle circle center line connecting and vertical direction; In the cross section of axle sleeve (4), axle sleeve (4) cylindrical center and worm gear (2) center line have an offset distance h, h=btan α in the horizontal direction.
4. the transmission device of valve opening and closing control gear as claimed in claim 3 is characterized in that, worm gear (2) and worm screw (3) modulus are that 4, α is 30o, and side-play amount e is 5.196 mm, offset distance h=2.598 mm.
5. the transmission device of valve opening and closing control gear as claimed in claim 4, it is characterized in that, described housing (1) is provided with pin assembly (7), described pin assembly (7) comprises spiral shell seat (72), and be provided with positioning rod (71) and pack in the described spiral shell seat (72) and can in spiral shell seat (72), slide, be set with Compress Spring (73) on the described positioning rod (71), described spiral shell seat (72) end is provided with pull handle (74); When being respectively equipped with corresponding worm gear (2) on the described axle sleeve (4) and meshing with worm screw (3), worm gear (2) and the positioning hole (41) of worm screw (3) when separating, described positioning hole (41) is suitable with positioning rod (71).
6. the transmission device of valve opening and closing control gear as claimed in claim 5, it is characterized in that, also comprise position limit switch (8), when worm gear (2) and worm screw (3) engagement, axle sleeve (4) can touch position limit switch (8), and described position limit switch (8) is connected with pneumatic system.
7. the transmission device of valve opening and closing control gear as claimed in claim 6 is characterized in that, described clutch mechanism comprises handle (5), and described handle (5) is affixed with axle sleeve (4).
8. the transmission device of valve opening and closing control gear as claimed in claim 7 is characterized in that, described worm screw (3) one ends are connected with handle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310279890.XA CN103375640B (en) | 2013-07-04 | 2013-07-04 | A kind of transmission device of valve opening and closing control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310279890.XA CN103375640B (en) | 2013-07-04 | 2013-07-04 | A kind of transmission device of valve opening and closing control gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103375640A true CN103375640A (en) | 2013-10-30 |
| CN103375640B CN103375640B (en) | 2015-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310279890.XA Active CN103375640B (en) | 2013-07-04 | 2013-07-04 | A kind of transmission device of valve opening and closing control gear |
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| Country | Link |
|---|---|
| CN (1) | CN103375640B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089067A (en) * | 2014-07-14 | 2014-10-08 | 黄山良业阀门有限公司 | Emergency cut-off device for valves |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114474A (en) * | 1977-04-04 | 1978-09-19 | Dresser Industries, Inc. | Gear shaft assembly |
| JPH11101364A (en) * | 1997-09-26 | 1999-04-13 | Tomoe Tech Res Co | Driving device of rotary valve |
| CN202418846U (en) * | 2011-12-12 | 2012-09-05 | 奉化市远东车辆部件有限公司 | Automatic and manual two-purpose valve switch actuator |
| CN203336005U (en) * | 2013-07-04 | 2013-12-11 | 黄山良业阀门有限公司 | Transmission device for valve opening and closing control device |
-
2013
- 2013-07-04 CN CN201310279890.XA patent/CN103375640B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4114474A (en) * | 1977-04-04 | 1978-09-19 | Dresser Industries, Inc. | Gear shaft assembly |
| JPH11101364A (en) * | 1997-09-26 | 1999-04-13 | Tomoe Tech Res Co | Driving device of rotary valve |
| CN202418846U (en) * | 2011-12-12 | 2012-09-05 | 奉化市远东车辆部件有限公司 | Automatic and manual two-purpose valve switch actuator |
| CN203336005U (en) * | 2013-07-04 | 2013-12-11 | 黄山良业阀门有限公司 | Transmission device for valve opening and closing control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089067A (en) * | 2014-07-14 | 2014-10-08 | 黄山良业阀门有限公司 | Emergency cut-off device for valves |
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| Publication number | Publication date |
|---|---|
| CN103375640B (en) | 2015-10-21 |
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Address after: 245000 Shuai Xin Industrial Park, Yang Hu Town, Tunxi District, Huangshan City, Anhui Patentee after: HUANGSHAN LIANGYE INTELLIGENT CONTROL Co.,Ltd. Address before: 245000 Shuai Xin Industrial Park, Yang Hu Town, Tunxi District, Huangshan City, Anhui Patentee before: Mount Huangshan Liang Ye intelligent Polytron Technologies Inc. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 245000 Shuai Xin Industrial Park, Yang Hu Town, Tunxi District, Huangshan City, Anhui Patentee after: Mount Huangshan Liang Ye intelligent Polytron Technologies Inc. Address before: 245041 Shuai Xin Industrial Park, Yang Hu Town, Tunxi District, Huangshan City, Anhui Patentee before: HUANGSHAN LIANGYE VALVE Co.,Ltd. |