CN103486107A - Manual and pneumatic integrated steam cylinder - Google Patents
Manual and pneumatic integrated steam cylinder Download PDFInfo
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- CN103486107A CN103486107A CN201310447662.9A CN201310447662A CN103486107A CN 103486107 A CN103486107 A CN 103486107A CN 201310447662 A CN201310447662 A CN 201310447662A CN 103486107 A CN103486107 A CN 103486107A
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Abstract
The invention provides a manual and pneumatic integrated steam cylinder which comprises a cylinder, a piston, a piston rod, a manual rotary apparatus and a height indicator. The piston is arranged in an inner cavity of the cylinder, one end of the piston rod is connected onto the piston, the piston rod and the piston can slide relatively within a certain range, a screw is arranged at the other end of the piston, an integral nut is arranged on the screw, is connected with the upper portion of the cylinder and can rotate relatively, the manual rotary apparatus is mounted on the upper portion of the nut, the height indicator is mounted on the manual rotary apparatus, and two air vents are formed in the cylinder and are respectively positioned at the top and the bottom of a piston activity cavity in the cylinder. The manual and pneumatic integrated steam cylinder has the advantages that the strength of the integral trapezoidal nut is improved, and the size of the nut is reduced; the steam cylinder can be operated in the total stroke, so that equipment is lightened and is high in operability; balls are arranged between the piston and the piston rod and are used as limiting devices, so that the piston rod can be prevented from rotating along with the nut in a manual mode, and the manual rotary apparatus can be prevented from acting in a pneumatic mode.
Description
Technical field
The present invention relates to a kind of cylinder, particularly the moving one cylinder of a kind of luck, belong to the cylinder field.
Background technique
In production practices, need the pneumatic execution relevant action of cylinder, but sometimes also need the manually-operable cylinder to carry out relevant action, therefore need the cylinder of the moving one of a kind of luck.
In existing luck one cylinder, nut portion is divided into two, when hand-operating device, nut is merged with corresponding device, the turn nut just can produce axial displacement, promote piston and open or throttle down, but nut is divided into two and causes its strength decreased, therefore require the nut will be to thick and long future development to improve its intensity, therefore cause the equipment heaviness, when valve needs larger strength to close, this problem is especially outstanding.
In the luck one cylinder had, owing between piston and piston rod, lacking limit stoper, the situation that piston rod rotates with nut occurs while making manually-operable, cause effectively upstream or downstream of piston rod.
In view of this special proposition the present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of luck one cylinder is provided, and can distinguish pneumatic operation and manually operation, realizes lightweight and the ease for operation of equipment.
For solving the problems of the technologies described above, the present invention adopts the basic conception of technological scheme to be:
Luck one cylinder, comprise cylinder body, piston, piston rod, manual rotary devices, piston is placed in inner chamber of cylinder block, piston rod one end is connected on piston, cylinder body is formed by connecting by upper cylinder body and lower cylinder body, it is U-shaped that lower cylinder body is, and there is cavity inside, and the lower cylinder body bottom also is provided with the bottom that ventilating hole is communicated with cavity; Upper cylinder body is inverted T shape, upper cylinder body overlays the lower cylinder body upper end, the extension limit on lower cylinder body top and the extension limit of lower cylinder body bottom are fixed by screw, the inner axial center hole along it arranged of upper cylinder body is up big and down small ladder hole, piston rod passes from through hole, and the upper cylinder body bottom is provided with the top that ventilating hole is communicated with the lower cylinder body internal cavities.Piston is placed in the cavity that upper cylinder body and lower cylinder body enclose.
Piston is cross, top is head rod, be provided with upwards open cylinder chamber in head rod, piston rod one end is inserted in cylinder chamber and can endwisely slips along piston rod within the specific limits, the head rod upper end is provided with and makes piston rod do not come off the limit stoper of cylinder chamber, is provided with limited piston bar and piston limit stoper in relative rotation between the wall of piston rod and cylinder chamber; The bottom of piston is the second connecting rod, and the second connecting rod passes from the center hole of lower cylinder body bottom.
The piston rod the other end is screw rod and the center hole that penetrates upper cylinder body, is provided with the integrated type nut on screw rod, and nut is connected with upper cylinder body top and can relatively rotates, and manual rotary devices is fixed on nut.
The head rod of piston penetrates the upper cylinder body center hole and its external diameter matches with the diameter of upper cylinder body center hole.
In the time of manually, the rotary manual whirligig makes nut rotation, thereby makes the action of piston rod upstream or downstream, when the relative piston of piston rod slides into limit position, drives piston stroking upward or descending, and the piston bottom drives other device actions.
When pneumatic, first rotation manual whirligig rises to certain altitude by piston rod, and with height indicateing arm indicated altitude, arrive after needed height the manual rotary devices that stops operating, in the ensuing pneumatic situation of pressing or drawing piston rod that can not occur while making piston up and down in service.
Descent of piston when the ventilating hole air inlet that is positioned at upper cylinder body, the ventilating hole that is positioned at lower cylinder body are given vent to anger, the piston bottom drives other device actions, piston stroking upward when the ventilating hole air inlet that is positioned at lower cylinder body, the ventilating hole that is positioned at upper cylinder body are given vent to anger, the piston bottom drives other device actions.Due to relative sliding within the specific limits between piston rod and piston, therefore, when pneumatic, piston action does not drive the piston rod action, can not drive end nut and manual rotary devices action on piston rod yet.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Luck one cylinder of the present invention, can, respectively by manual or pneumatic mode driven plunger action, realize the cylinder function thereby drive other device actions.Trapezoidal nut is that integrated type has strengthened the intensity of nut and reduced the nut volume, trapezoidal nut rotates in the center hole of upper cylinder body by bearing, and ball is set as limit stoper between piston and piston rod, make piston and piston rod to relatively rotate, when manual, can rotation hand wheel make piston rod drive piston up-down, prevent when manual that piston rod is with the phenomenon of nut rotation; When pneumatic, can avoid the interlock between piston and piston rod, thereby avoid the action of manual rotary devices, and cylinder can carry out the total travel operation, realize lightweight and the ease for operation of equipment.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The accompanying drawing explanation
Fig. 1 be luck one cylinder of the present invention partly cut open structural representation.
Fig. 2 is the partial cutaway schematic of piston.
Fig. 3 is the partial sectional view of piston rod.
1. lower seal, 2. piston, 3. sealing gasket, 4. plug screw, 5. screw, 6. bullet pad, 7. upper cylinder body, 8. piston rod, 9. jackscrew, 10. screw, 11. pressure pad, 12. height indicateing arms, 13. handwheels, 14. gland nuts, 15. trapezoidal nuts, 16. bearing, 17. pads, seal ring on 18., 19. balls, 20. piston packings, 21. lower cylinder body, 211. head rods, 212. second connecting rods, 213. cylinder chamber, 214. half grooves, 81. cylinder, 82. holes, A. ventilating hole, B. ventilating hole.
Embodiment
As shown in Figure 1, luck one cylinder, comprise cylinder body, piston, piston rod, manual rotary devices and height indicateing arm.
As shown in Figure 2, piston 2 is cross, comprises the head rod on top, the second connecting rod and the intermediate portion of bottom.The head rod 211 that top is cylindricality, be provided with the cylinder chamber 213 upwards opened axial along it on head rod 211, piston 2 bottoms are the second connecting rod 212.
Cylinder body is comprised of upper cylinder body 7 and lower cylinder body 21, lower cylinder body 21 is U-shaped, there is cavity inside, the center hole that lower cylinder body 21 centres, bottoms have the second connecting rod 212 of confession cross piston 2 bottoms to slide up and down, and lower cylinder body 21 bottoms also are provided with the bottom that ventilating hole B is communicated with the cavity of lower cylinder body 21 inside.
Upper cylinder body 7 is inverted T shape, upper cylinder body 7 overlays lower cylinder body 21 upper ends, the extension limit of the extension limit on lower cylinder body 21 tops and lower cylinder body 7 bottoms is fixed by screw 5 and bullet pad 6 and is passed through sealing gasket 3 and seals, there is the center hole axially arranged along it upper cylinder body 7 inside, the ladder hole that the center hole of upper cylinder body is up big and down small three steps, piston rod 8 passes from through hole, and upper cylinder body 7 bottoms are provided with the top that ventilating hole A is communicated with the inner chamber of lower cylinder body 21.
The movable chamber that the cavity that the bottom surface of upper cylinder body 7 and lower cylinder body 21 enclose is the piston acting, the i.e. movable chamber of piston.
Piston 2 is placed in the chamber that upper cylinder body 7 and lower cylinder body 21 enclose, the head rod 211 on its top is flexibly connected with piston rod 8 bottoms, pass and connect other devices the center hole of second connecting rod 212 of its underpart in the middle of lower cylinder body 21 bottoms, in the second connecting rod 212 and the center hole cooperation place of lower cylinder body 21 bottoms of piston 2 bottoms, be provided with lower seal 1.
The inwall cooperation place of piston 2 intermediate portions and lower cylinder body 21 is equipped with piston packing 20.The lower end surface of piston 2 intermediate portions is the low ladder surface in Gao， center, edge, and the ventilating hole B of lower cylinder body is positioned at the below of the edge, lower end surface of piston intermediate portion.When the intermediate portion of piston 2 drops to bottom, the movable chamber of piston, the corner impact that the piston intermediate portion can not form with sidewall and the base in the movable chamber of piston, and during ventilating hole B air inlet, due to a reserved space being arranged between the lower end surface of piston 2 intermediate portions and lower cylinder body, therefore that gas can not make piston occur when entering cylinder is prominent moving.
The upper cylinder body bottom surface is also ladder surface, when upper cylinder body during in assembling condition, its intermediate portion, bottom surface is low than edge, when the intermediate portion of piston 2 rises to the movable top of chamber of piston, and the corner impact that the piston intermediate portion can not form with sidewall and the limit, upper cylinder body bottom surface of lower cylinder body.And after the upper cylinder body assembling, between the upper-end surface of the intermediate portion of the edge section of its bottom surface and piston 2, have living space, ventilating hole A is positioned at herein.The same, when ventilating hole A air inlet, due to a reserved space being arranged between the upper-end surface of piston 2 intermediate portions and upper cylinder body, therefore that gas can not make piston occur when entering cylinder is prominent moving.
As shown in Figure 1,3, piston rod 8 is up-thin-low-thick stepped stem, the diameter maximum of cylinder 81 bottom, piston rod 8 bottoms are inserted in the cylinder chamber 213 of piston 2 top head rods and can relative slidings, cylinder chamber 213 tops of the head rod of piston 2 are equipped with plug screw 4 as limit stoper, plug screw 4 is threaded in cylinder chamber 213 upper ends, can slippage thereby the little lower end by piston rod 8 of diameter of the internal diameter of plug screw 4 cylinder 81 bottom than piston rod 8 is limited in cylinder chamber 213.
Wall and the piston rod 8 of the cylinder chamber 213 of the head rod on piston 2 tops are provided with limit stoper between cylinder 81 bottom, in the present embodiment, adopt ball 19 as limit stoper.
The outer cylinder of piston rod 8 cylinder 81 bottom evenly is provided with in 82， hole, a plurality of hole 82 and is placed with ball 19, is provided with half groove of many above-below directions on the wall of corresponding cylinder chamber.
As shown in Figure 1, 2, in the present embodiment, the hole on cylinder 81 has 4, is placed with 1 ball in each hole, is provided with half groove 214 of 4 above-below directions on the wall of corresponding cylinder chamber.
The setting of ball 19 and half groove 214, make can either be relative between piston rod 8 and piston 2 slide up and down, can not relatively rotate again, play limited piston bar 8 and act in relative rotation with piston 2.
The head rod 211 on piston 2 tops and piston rod 8 are inserted in the center hole of upper cylinder body 7, and the head rod external diameter matches with the diameter in upper cylinder body center hole hole bottom.Be provided with seal ring 18 between head rod 211 and upper cylinder body 7 center holes.Due to the center hole of the upper cylinder body ladder hole that is up big and down small three steps, therefore head rod 211 coordinates with hole wall bottom, and nothing friction between other center hole walls, thereby can guarantee tightness, can reduce again the working life of cylinder heating and raising cylinder, and not reduce the intensity of cylinder wall.
When piston 2 is up to extreme higher position, the top on trapezoidal nut 15 bottoms and piston 2 tops is still to have gap between the head rod top, and while guaranteeing the cylinder operation, both can not touch.
Trapezoidal nut 15 tops exceed upper cylinder body 7.Manual rotary devices is fixed on by jackscrew 9 outer side surface that trapezoidal nut exceeds the position of upper cylinder body 7.Choose in the present embodiment handwheel 13 as manual rotary devices, also can adopt in other embodiments rocking handle as manual rotary devices.
Be fixed with height indicateing arm 12 by screw 10 and pressure pad 11 above manual rotary devices, the height that height indicateing arm 12 rises in order to the indicator piston bar.
In other embodiments, the height indicateing arm is engraved on piston rod, and visual when piston rod goes upward to a certain degree, make the action of piston rod upstream or downstream by the rotary manual whirligig, and determine the suitable stroke of piston rod upstream or downstream by the height indicateing arm.
In the time of manually, ventilating hole A and B all cancel ventilation, rotation hand wheel 13 rotates trapezoidal nut 15, because trapezoidal nut 15 rotates in the hole of upper cylinder body 7 by bearing 16, be provided with the ball 19 in half groove 214 interior scroll-up/down between piston 2 and piston rod 8, due to the resistance of ball 19 between groove and hole, piston rod 8 can not followed trapezoidal nut 15 and be rotated together, therefore piston rod 8 upstream or downstream actions when rotation hand wheel 13, when the relative piston 2 of piston rod 8 slides into limit position, drive piston 2 upstream or downstream, piston 2 bottoms drive other device actions.
When pneumatic, first rotate handwheel 13 piston rod 8 is risen to certain altitude, and by height indicateing arm 12 indicated altitudes, the handwheel that stops operating after the arrival needed height, thus guarantee when piston 2 is up and down when pneumatic can not occur the situation of pressing or drawing piston rod 8.
Due to the top in the movable chamber of ventilating hole A connection piston, when the ventilating hole A air inlet, the ventilating hole B that are positioned at upper cylinder body 7 give vent to anger, piston 2 is descending, and piston 2 bottoms drive other device actions; Due to the bottom in the movable chamber of ventilating hole B connection piston, when the ventilating hole B air inlet, the ventilating hole A that are positioned at lower cylinder body 21 give vent to anger, piston 2 is up, and piston 2 bottoms drive other device actions.Due to both relative slidings within the specific limits of piston rod 8 and piston 2, therefore, when pneumatic, piston 2 actions do not drive piston rod 8 actions, and trapezoidal nut 15 and the handwheel 13 that also can not drive the piston rod upper end rotate.Because plug screw 4 all leaves one section idle stroke up and down, can guarantee that cylinder can the total travel operation when pneumatic.
After adopting technique scheme, the present invention compared with prior art has following beneficial effect.
Luck one cylinder of the present invention, can, respectively by manual or pneumatic mode driven plunger action, realize the cylinder function thereby drive other device actions.Trapezoidal nut is that integrated type has strengthened the intensity of nut and reduced the nut volume, trapezoidal nut rotates in the center hole of upper cylinder body by bearing, and ball is set as limit stoper between piston and piston rod, make piston and piston rod to relatively rotate, when manual, can rotation hand wheel make piston rod drive piston up-down, prevent when manual that piston rod is with the phenomenon of nut rotation; When pneumatic, can avoid the interlock between piston and piston rod, thereby avoid the action of manual rotary devices, and cylinder can carry out the total travel operation, realize lightweight and the ease for operation of equipment.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described the preferred embodiments of the present invention; not the spirit and scope of the present invention are limited; under the prerequisite that does not break away from design philosophy of the present invention; the various changes and modifications that in related domain, the professional and technical personnel makes technological scheme of the present invention, all belong to protection scope of the present invention.
Claims (10)
1. luck one cylinder, comprise the cylinder body, piston, piston rod, the manual rotary devices that are formed by connecting by upper cylinder body and lower cylinder body, and piston is arranged in the chamber that upper cylinder body and lower cylinder body enclose, and it is characterized in that:
Piston is cross, top is head rod, be provided with upwards open cylinder chamber in head rod, piston rod is up-thin-low-thick stepped stem, and piston-rod lower end is inserted in cylinder chamber and can endwisely slips along piston rod, and the cylinder chamber upper end-hole is equipped with the plug screw that piston rod is played to position-limiting action, piston rod is porose on the cylinder of cylinder bottom, ball is installed in hole, is provided with the groove of above-below direction on the wall of cylinder chamber, ball rolls in groove;
The piston rod upper end is screw rod and the center hole that penetrates upper cylinder body, and the center hole of upper cylinder body is up big and down small shoulder hole, is provided with the integrated type nut on screw rod, and nut is connected with upper cylinder body top and can relatively rotates, and manual rotary devices is fixed on nut,
The head rod of piston penetrates the upper cylinder body center hole, and its external diameter matches with the diameter in upper cylinder body center hole hole bottom, and the bottom of piston is the second connecting rod, and the second connecting rod passes from the center hole of lower cylinder body bottom;
Be provided with two ventilating holes on cylinder body, lay respectively at top and the bottom in the movable chamber of cylinder body inner carrier.
2. luck one cylinder according to claim 1, it is characterized in that: the cylinder of piston rod cylinder bottom evenly is provided with 4 holes, be placed with ball in hole, corresponding half groove that is provided with 4 above-below directions on the wall of cylinder chamber, ball rolls in half groove.
3. luck one cylinder according to claim 1 and 2, it is characterized in that: the internal diameter of plug screw is less than piston rod body diameter bottom.
4. luck one cylinder according to claim 1 and 2, it is characterized in that: lower cylinder body is U-shaped, and there is cavity inside, and the lower cylinder body bottom also is provided with the bottom that ventilating hole is communicated with cavity;
Upper cylinder body is inverted T shape, upper cylinder body overlays the lower cylinder body upper end, the extension limit on lower cylinder body top and the extension limit of lower cylinder body bottom are fixed by screw, the bottom surface of upper cylinder body is the low ladder surface in Gao, center, edge, the inner axial center hole along it arranged of upper cylinder body is through hole, piston rod penetrates in through hole, and the upper cylinder body bottom is provided with ventilating hole and is communicated with the lower cylinder body internal cavities.
5. luck one cylinder according to claim 1, it is characterized in that: the lower end surface of piston intermediate portion is the low ladder surface in Gao， center, edge, and the ventilating hole of lower cylinder body is positioned at the below of the edge, lower end surface of piston intermediate portion.
6. luck one cylinder according to claim 1 is characterized in that: the ladder hole that the center hole of upper cylinder body is up big and down small three steps.
7. according to the described luck one of claim 1 or 6 cylinder, it is characterized in that: the nut arranged on screw rod is trapezoidal nut, trapezoidal nut is arranged in upper cylinder body shoulder hole topmost and fixes by gland nut by bearing, and trapezoidal nut top exceeds upper cylinder body.
8. luck one cylinder according to claim 7 is characterized in that: manual rotary devices is fixed on the position that trapezoidal nut exceeds upper cylinder body by jackscrew.
9. luck one cylinder according to claim 8, it is characterized in that: manual rotary devices is any one of handwheel or rocking handle.
10. luck one cylinder according to claim 1 is characterized in that: also comprise the height indicateing arm, the height indicateing arm is fixed by screws in the manual rotary devices top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447662.9A CN103486107B (en) | 2013-09-26 | 2013-09-26 | Luck one cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310447662.9A CN103486107B (en) | 2013-09-26 | 2013-09-26 | Luck one cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN103486107A true CN103486107A (en) | 2014-01-01 |
| CN103486107B CN103486107B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310447662.9A Expired - Fee Related CN103486107B (en) | 2013-09-26 | 2013-09-26 | Luck one cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952957A (en) * | 2016-05-18 | 2016-09-21 | 北京航天试验技术研究所 | Rising stem type hydraulic hand wheel for valve |
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| US20120025114A1 (en) * | 2010-03-31 | 2012-02-02 | David Lymberopoulos | Safety valve and method of use |
| CN102818055A (en) * | 2012-09-11 | 2012-12-12 | 中国人民解放军总后勤部油料研究所 | Automatic block valve |
| CN203162223U (en) * | 2013-04-17 | 2013-08-28 | 成都市龙成机电设备有限公司 | Self-operated hydraulic three-way valve of isolation system of high pressure heater |
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2013
- 2013-09-26 CN CN201310447662.9A patent/CN103486107B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201496338U (en) * | 2009-07-30 | 2010-06-02 | 周位刚 | Adjustable buffer type mini cylinder |
| CN201531482U (en) * | 2009-10-31 | 2010-07-21 | 温州市康赛特自动控制阀门有限公司 | Shift fork type pneumatic actuator |
| RU2418221C2 (en) * | 2010-02-25 | 2011-05-10 | Рафик Хасанович Арифулин | Valve with duplicating drive |
| US20120025114A1 (en) * | 2010-03-31 | 2012-02-02 | David Lymberopoulos | Safety valve and method of use |
| CN201671903U (en) * | 2010-05-07 | 2010-12-15 | 宁波市爱托普气动液压有限公司 | Transverse adjusting oil cylinder |
| CN101915315A (en) * | 2010-07-06 | 2010-12-15 | 浙江精嘉阀门有限公司 | Hand-operated emergency cut-off valve for self-operated pneumatic tape |
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| CN102818055A (en) * | 2012-09-11 | 2012-12-12 | 中国人民解放军总后勤部油料研究所 | Automatic block valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952957A (en) * | 2016-05-18 | 2016-09-21 | 北京航天试验技术研究所 | Rising stem type hydraulic hand wheel for valve |
| CN105952957B (en) * | 2016-05-18 | 2019-01-18 | 北京航天雷特机电工程有限公司 | A kind of hydraulic handwheel of valve rising stem type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486107B (en) | 2015-10-21 |
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