CN103758814B - A kind of buffering throws venting cylinder - Google Patents
A kind of buffering throws venting cylinder Download PDFInfo
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- CN103758814B CN103758814B CN201310753147.3A CN201310753147A CN103758814B CN 103758814 B CN103758814 B CN 103758814B CN 201310753147 A CN201310753147 A CN 201310753147A CN 103758814 B CN103758814 B CN 103758814B
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- cylinder body
- cylinder
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- rolling seat
- screw rod
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Abstract
The invention discloses a kind of buffering and throw venting cylinder, belong to cylinder technical field.Cylinder comprises screw rod, end cap, nut, left piston, elastic cylindrical pin, right piston, cylinder body, main spring, block, straight pin, major connector, connector bar, auxiliary spring, guide ring, push rod, rolling seat, constrictor, seal ring and guide pad.The present invention can realize double buffering, and first-level buffer is realized by main spring, and level 2 buffering is by block, straight pin, the damping mechanism of connector bar and auxiliary spring composition realizes, and can ensure to throw the safety and reliability put, device can reuse saving manufacturing cost and use cost.The throwing of device is let slip journey and is relied on structure to realize completely, convenient operation and maintenance.Cylinder can realize dishing out fast weight when cylinder diameter is limited simultaneously, and has good cushioning effect.
Description
Technical field
Invention relates to a kind of cylinder, be specifically related to a kind of treat to throw put object and apply to throw and put the cylinder of power, belong to cylinder technical field.
Background technique
Throw venting cylinder and be widely used in the field such as engineering machinery and military project, its kind and model often, being a kind of actuators for realizing straight reciprocating motion, having the advantages that movement velocity is fast, sealing requirements is high.When throwing, to put thing weight large, require that throwing puts the time in short-term, the piston throwing venting cylinder is large to the impact force of cylinder body, have impact on join strength and the working life of cylinder body, and let slip the huge Strike note of product in journey in throwing, therefore the problem that damping mechanism becomes in the urgent need to address is set on throwing venting cylinder.
Summary of the invention
In view of this, the invention provides a kind of throwing venting cylinder, when cylinder bore is limited, also can realize weight of dishing out fast, and there is good cushioning effect.
One is thrown venting cylinder, is comprised screw rod, end cap, nut, left piston, elastic cylindrical pin, right piston, cylinder body, main spring, block, straight pin, major connector, connector bar, auxiliary spring, guide ring, push rod, rolling seat, screw, constrictor, seal ring and guide pad.
Wherein, screw rod is with axial center hole, and the cylindrical section of its one end is the connecting end be connected with external high pressure gas cylinder, and the cylindrical section of the other end is the connecting end be connected with left piston, and remaining part is thread section;
Cylinder body, major connector and connector bar are the open circles column sleeve of both ends open, one end of cylinder body is the mounting end installing screw rod and left piston and right piston, the other end is the mounting end installing rolling seat, and the outer peripheral surface of cylinder body and rolling seat mounting end has the axial groove that a section runs through cylinder sleeve wall thickness by end face; The outer peripheral surface of major connector one end is processed with thread section, the excircle of the other end has the axial groove running through major connector wall thickness; The outer peripheral surface of connector bar one end is processed with thread section;
Its annexation is: the one end of installing screw rod at cylinder body, be arranged on after the excircle of left piston and right piston being set with seal ring in cylinder body, the opposing side of left piston and right piston forms airtight air cavity in cylinder body, screw rod is engaged in cylinder body by its thread section by nut support, itself and left piston are fixed by elastic cylindrical pin through after left piston by one end of screw rod, the fitting surface of screw rod and left piston is realized sealing by the seal ring be arranged on left piston, and nut is carried out axial limiting at cylinder body end face by end cap; One end of rolling seat is installed at cylinder body, be arranged on after the excircle of rolling seat being set with guide ring and guide pad in cylinder body, push rod is installed therein along the radial direction of rolling seat, push rod stretches out cylinder body by the axial groove on cylinder body, part outside its cylinder body is treated throwing and is put object applied thrust, this end of cylinder body is closed by capping, the internal surface of capping is installed one deck cushion pad;
The two ends of connector bar are respectively charged into block and constrictor, it is auxiliary spring between block and constrictor, one end that connector bar is threaded section is fixedly connected with rolling seat, constrictor along cylinder body axially across push rod and rolling seat, the other end of connector bar is sleeved on one end that major connector has axial groove, block is locked on connector bar by straight pin, and straight pin limits connector bar can only at the axial groove intrinsic displacement of major connector; The other end of major connector is fixedly connected with right piston, and conflict respectively and be arranged between right piston and rolling seat in the two ends of main spring, major connector and connector bar entirety are positioned at main spring.
Further, the outer peripheral surface of cylinder body has the exhaust port running through wall thickness, on the cylindrical section of exhaust port close rolling seat between right piston and push rod; When making cylinder operation, the chamber indoor gas depositing spring is discharged fast by exhaust port, improves the working efficiency of cylinder.
Further, the outer peripheral surface of connector bar has the exhaust port running through wall thickness, exhaust port is positioned at on the cylindrical section of rolling seat connecting end;
Further, the load end installed thrust bearing of screw rod and left piston, can reduce screw rod and be screwed into resistance to motion when back-outing.
Further, on cylinder body, the position of axial groove is provided with slide plate, and slide plate is fixedly mounted on rolling seat, follows rolling seat and is synchronized with the movement, and slide plate stops that foreign matter and dust enter cylinder interior.
Working procedure: when working state, is connected the left end of screw rod with gas cylinder, and push rod is positioned at part outside cylinder body and treats that throwing is put thing and contacted, and main spring is pre-compressed, energy accumulation, when needs treat throwing put thing carry out throwing put time, pressurized gas are passed in screw rod, pressurized gas expand in the airtight chamber be made up of left piston and right piston, promote right piston and connecting rod moves right along inboard wall of cylinder block, further Compress Spring, when after throwing that the locking force putting thing is instantaneous and laying down, under the acting in conjunction of pressurized gas and spring, to treat that throwing is put thing and dished out, now, cushion contact in the end of constrictor and capping, realize buffering, constrictor compresses auxiliary spring after stopping displacement, connector bar and constrictor produce relative displacement, in displacement process, after exhaust port on connector bar is closed by the head of constrictor, the inner chamber of connector bar forms airtight chamber, constrictor compresses the air of airtight chamber and auxiliary spring, at main spring, under the buffer function of auxiliary spring and airtight chamber, complete throwing and let slip journey.
Need throwing venting cylinder to reset before reusing, oppositely back-out by screw rod, main spring affranchises length, by pulling push rod, throwing after putting thing playback, then is screwed into screw rod and compresses main spring, again entering and treat working state.
Beneficial effect:
1, the present invention can realize double buffering, and first-level buffer is realized by main spring, and level 2 buffering is by block, straight pin, the damping mechanism of connector bar and auxiliary spring composition realizes, and can ensure to throw the safety and reliability put, device can be reused, and can save the manufacturing cost and use cost of throwing and putting device.The throwing of device is put and is relied on structure to realize completely with buffering course, convenient operation and maintenance.
2, screw rod of the present invention is screw rod with holes, can Compress Spring and help spring reset, the amount that adjusting screw rod is screwed into by screw rod, can the decrement of control spring.Screw rod, simultaneously also for transport gas, makes whole mechanism structure compact.
3, the present invention sets up thrust-bearing between screw rod and piston, reduces the resistance to motion produced when screw rod and nut screw connection promote piston movement, is conducive to personnel and operates.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Wherein, 1-screw rod, 2-end cap, 3-nut, 4-left piston, 5-elastic cylindrical pin, the right piston of 6-, 7-cylinder body, 8-main spring, 9-block, 10-straight pin, 11-major connector, 12-connector bar, 13-auxiliary spring, 14-exhaust port, 15-guide ring, 16-push rod, 17-rolling seat, 18-screw, 19-constrictor, 20-slide plate, 21-cushion pad, 22-thrust-bearing, 23-seal ring I, 24-seal ring II, 25-seal ring III, 26-guide pad, 27-capping.
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, the invention provides a kind of buffering and throw venting cylinder, comprise screw rod 1, end cap 2, nut 3, left piston 4, elastic cylindrical pin 5, right piston 6, cylinder body 7, main spring 8, block 9, straight pin 10, major connector 11, connector bar 12, auxiliary spring 13, guide ring 15, push rod 16, rolling seat 17, constrictor 19, cushion pad 21, seal ring I 23, seal ring II 24, seal ring III 25, guide pad 26 and capping 27, peripheral unit puts dashed rectangle part in thing A(figure for being with throwing) and gas cylinder.
Wherein, screw rod 1 is with axial center hole, and the cylindrical section of its one end is the connecting end be connected with external high pressure gas cylinder, and the cylindrical section of the other end is the connecting end be connected with left piston 4, and remaining part is thread section;
Cylinder body 7, major connector 11 and connector bar 12 are the open circles column sleeve of both ends open, one end of cylinder body 7 is the mounting end installing screw rod 1 and left piston 4 and right piston 6, the other end is the mounting end installing rolling seat 17, and cylinder body 7 and the outer peripheral surface of rolling seat 17 mounting end have the axial groove that a section runs through cylinder body 7 wall thickness by end face; The outer peripheral surface of major connector 11 one end is processed with thread section, the excircle of the other end has the axial groove running through major connector 11 wall thickness; The outer peripheral surface of connector bar 12 one end is processed with thread section;
Its annexation is: the one end of installing screw rod 1 at cylinder body 7, the excircle of left piston 4 and right piston 6 is set with and is arranged in cylinder body 7 by after seal ring I 23 and seal ring III 25, the opposing side of left piston 4 and right piston 6 forms airtight air cavity in cylinder body 7, screw rod 1 is engaged in cylinder body 7 by its thread section by nut 3 support, itself and left piston 4 are fixed by elastic cylindrical pin 5 through after left piston 4 by one end of screw rod 1, screw rod 1 is realized sealing by the seal ring II 24 be arranged on left piston 4 with the fitting surface of left piston 4, end cap 2 carries out axial limiting at cylinder body 7 end face to nut 3 and left piston 4, one end of rolling seat 17 is installed at cylinder body 7, be arranged on after the excircle of rolling seat 17 being set with guide ring 15 and guide pad 26 in cylinder body 7, push rod 16 is installed therein along the radial direction of rolling seat 17, push rod 16 stretches out cylinder body 7 by the axial groove on cylinder body 7, part outside its cylinder body 7 is treated throwing and is put thing A applied thrust, this end of cylinder body 7 is closed by capping 27, the internal surface of capping 27 is installed one deck cushion pad 21,
The two ends of connector bar 12 are respectively charged into block 9 and constrictor 19, it is auxiliary spring 13 between block 9 and constrictor 19, one end that connector bar 12 is threaded section is fixedly connected with rolling seat 17, constrictor 19 along cylinder body axially across push rod 16 and rolling seat 17, the other end of connector bar 12 is sleeved on one end that major connector 11 has axial groove, block 9 is locked on connector bar 12 by straight pin 10, and straight pin 10 limits connector bar 12 can only at the axial groove intrinsic displacement of major connector 11; The other end of major connector 11 is fixedly connected with right piston 6, and conflict respectively and be arranged between right piston 6 and rolling seat 17 in the two ends of main spring 8, major connector 11 and connector bar 12 entirety are positioned at main spring 8.
Further, the outer peripheral surface of cylinder body 7 has the exhaust port 14 running through wall thickness, on the cylindrical section of exhaust port 14 between right piston 6 and push rod 16; When making cylinder operation, the chamber indoor gas depositing main spring 8 is discharged fast by exhaust port, improves the working efficiency of cylinder.
Further, the outer peripheral surface of connector bar 12 has the exhaust port running through wall thickness, exhaust port is positioned at on the cylindrical section of rolling seat 17 connecting end;
Further, the load end installed thrust bearing 22 of screw rod 1 and left piston 4, can reduce screw rod 1 and be screwed into resistance to motion when back-outing.
Further, on cylinder body 7, the position of axial groove is provided with slide plate 20, and slide plate 20 is fixedly mounted on rolling seat 17 by screw 18, follows rolling seat 17 and is synchronized with the movement, and slide plate 20 stops that foreign matter and dust enter cylinder interior.
Working procedure: when working state, is connected the left end of screw rod 1 with gas cylinder, push rod 16 with put thing A by throwing and contact, main spring 8 is pre-compressed, energy accumulation, when needs treat throwing put thing A carry out throwing put time, pressurized gas are passed in screw rod 1, pressurized gas expand in the airtight chamber be made up of left piston 4 and right piston 6, promote right piston 6 and major connector 11 moves right along inboard wall of cylinder block, further compression main spring 8, when after throwing that the locking force putting thing A is instantaneous and laying down, under the acting in conjunction of pressurized gas and main spring 8, to treat that throwing is put thing A and dished out, now, the end of constrictor 19 contacts with the cushion pad 21 in capping, realize buffering, constrictor 19 compresses auxiliary spring 13 after stopping displacement, connector bar 12 and constrictor 19 produce relative displacement, in displacement process, after exhaust port on connector bar 12 is closed by the head of constrictor 19, the inner chamber of connector bar 12 forms airtight chamber, air and the auxiliary spring 13 of constrictor 19 pairs of airtight chamber compress, at main spring, under the buffer function of auxiliary spring and airtight chamber, complete throwing and let slip journey.
Need throwing venting cylinder to reset before reusing, oppositely back-out by screw rod 1, main spring 8 affranchises length, by pulling push rod 16, throwing after putting thing playback, then is screwed into screw rod 1 and compresses main spring 8, again entering and treat working state.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a buffering throws venting cylinder, it is characterized in that, comprise: screw rod (1), end cap (2), nut (3), left piston (4), elastic cylindrical pin (5), right piston (6), cylinder body (7), main spring (8), block (9), straight pin (10), major connector (11), connector bar (12), auxiliary spring (13), guide ring (15), push rod (16), rolling seat (17), constrictor (19), cushion pad (21), seal ring I (23), seal ring II (24), seal ring III (25), guide pad (26) and capping (27), peripheral unit is for treating that thing A and gas cylinder are put in throwing,
Wherein, screw rod (1) is with axial center hole, and the cylindrical section of its one end is the connecting end be connected with external high pressure gas cylinder, and the cylindrical section of the other end is the connecting end be connected with left piston (4), and remaining part is thread section;
Cylinder body (7), major connector (11) and connector bar (12) are the open circles column sleeve of both ends open, one end of cylinder body (7) is the mounting end installing screw rod (1) and left piston (4) and right piston (6), the other end, for installing the mounting end of rolling seat (17), the outer peripheral surface of the mounting end of the installation rolling seat (17) of cylinder body (7) has by end face the axial groove that a section runs through cylinder body (7) wall thickness; The outer peripheral surface of major connector (11) one end is processed with thread section, the excircle of the other end has the axial groove running through major connector (11) wall thickness; The outer peripheral surface of connector bar (12) one end is processed with thread section;
Its annexation is: the one end of installing screw rod (1) at cylinder body (7), be installed in cylinder body (7) after the excircle excircle of left piston (4) being set with seal ring I (23) and right piston (6) is set with seal ring III (25), the opposing side of left piston (4) and right piston (6) forms airtight air cavity in cylinder body (7), screw rod (1) is engaged in cylinder body (7) by its thread section by nut (3) support, screw rod (1) and left piston (4) are fixed by elastic cylindrical pin (5) through after left piston (4) by one end of screw rod (1), screw rod (1) is realized sealing by the seal ring II (24) be arranged on left piston (4) with the fitting surface of left piston (4), end cap (2) carries out axial limiting at the end face of cylinder body (7) to nut (3) and left piston (4), the other end of rolling seat (17) is installed at cylinder body (7), be arranged on after the excircle of rolling seat (17) being set with guide ring (15) and guide pad (26) in cylinder body (7), push rod (16) is arranged on rolling seat (17) inside along the radial direction of rolling seat (17), push rod (16) stretches out cylinder body (7) by the axial groove on cylinder body (7), push rod (16) is positioned at cylinder body (7) part outward to be treated throwing and puts thing A applied thrust, this end of cylinder body (7) is closed by capping (27), the internal surface of capping (27) is installed one deck cushion pad (21),
The two ends of connector bar (12) are respectively charged into block (9) and constrictor (19), be auxiliary spring (13) between block (9) and constrictor (19), one end of threaded section of connector bar (12) is fixedly connected with rolling seat (17), constrictor (19) along cylinder body axially across push rod (16) and rolling seat (17), the other end of connector bar (12) is sleeved on one end that major connector (11) has axial groove, block (9) is locked on connector bar (12) by straight pin (10), straight pin (10) limits connector bar (12) can only at the axial groove intrinsic displacement of major connector (11), the other end of major connector (11) is fixedly connected with right piston (6), conflict respectively and be arranged between right piston (6) and rolling seat (17) in the two ends of main spring (8), major connector (11) and connector bar (12) entirety are positioned at main spring (8).
2. buffering as claimed in claim 1 throws venting cylinder, it is characterized in that, the outer peripheral surface of described cylinder body (7) has the first row pore (14) running through wall thickness, first row pore (14) is positioned on the cylindrical section between right piston (6) and push rod (16).
3. buffering as claimed in claim 1 or 2 throws venting cylinder, it is characterized in that, the outer peripheral surface of described connector bar (12) has the second row pore running through wall thickness, second row pore be positioned at connector bar (12) with on the cylindrical section of rolling seat (17) connecting end.
4. buffering as claimed in claim 3 throws venting cylinder, it is characterized in that, load end installed thrust bearing (22) of described screw rod (1) and left piston (4).
5. buffering as claimed in claim 4 throws venting cylinder, it is characterized in that, the position of the upper axial groove of described cylinder body (7) is provided with slide plate (20), slide plate (20) is fixedly mounted on rolling seat (17) by screw (18), follows rolling seat (17) and is synchronized with the movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753147.3A CN103758814B (en) | 2013-12-31 | 2013-12-31 | A kind of buffering throws venting cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310753147.3A CN103758814B (en) | 2013-12-31 | 2013-12-31 | A kind of buffering throws venting cylinder |
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| Publication Number | Publication Date |
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| CN103758814A CN103758814A (en) | 2014-04-30 |
| CN103758814B true CN103758814B (en) | 2015-11-25 |
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| CN201310753147.3A Active CN103758814B (en) | 2013-12-31 | 2013-12-31 | A kind of buffering throws venting cylinder |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697453B (en) * | 2016-04-22 | 2017-07-28 | 浙江工业大学 | A kind of cylinder with liquid buffer |
| CN106246635B (en) * | 2016-08-29 | 2018-07-24 | 浙江品创知识产权服务有限公司 | From pressure release piston rod |
| CN108035935B (en) * | 2017-12-24 | 2020-02-18 | 中国航发贵州红林航空动力控制科技有限公司 | Piston buffering pushing device for electro-hydraulic actuator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314490A (en) * | 1970-11-17 | 1973-04-26 | Alkan R & Cie | Retractable ejector devices |
| US6073441A (en) * | 1996-03-06 | 2000-06-13 | Pos-Line Ab | Single acting pneumatic piston-cylinder unit |
| RU2349516C1 (en) * | 2007-09-20 | 2009-03-20 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Thrust-pneumatic pusher |
| RU2406662C1 (en) * | 2009-09-14 | 2010-12-20 | Федеральное Государственное унитарное предприятие Государственный научно-производственный ракетно-космический центр (ФГУП ГНПРКЦ "ЦСКБ-Прогресс") | Device to separated and jettison launch vehicle nose cone |
| CN102908726A (en) * | 2012-10-05 | 2013-02-06 | 施胜南 | Thrower for rescuing |
-
2013
- 2013-12-31 CN CN201310753147.3A patent/CN103758814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314490A (en) * | 1970-11-17 | 1973-04-26 | Alkan R & Cie | Retractable ejector devices |
| US6073441A (en) * | 1996-03-06 | 2000-06-13 | Pos-Line Ab | Single acting pneumatic piston-cylinder unit |
| RU2349516C1 (en) * | 2007-09-20 | 2009-03-20 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Thrust-pneumatic pusher |
| RU2406662C1 (en) * | 2009-09-14 | 2010-12-20 | Федеральное Государственное унитарное предприятие Государственный научно-производственный ракетно-космический центр (ФГУП ГНПРКЦ "ЦСКБ-Прогресс") | Device to separated and jettison launch vehicle nose cone |
| CN102908726A (en) * | 2012-10-05 | 2013-02-06 | 施胜南 | Thrower for rescuing |
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