CN201991844U - Auxiliary spring thread energy-storing oil cylinder - Google Patents
Auxiliary spring thread energy-storing oil cylinder Download PDFInfo
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- CN201991844U CN201991844U CN2011200424335U CN201120042433U CN201991844U CN 201991844 U CN201991844 U CN 201991844U CN 2011200424335 U CN2011200424335 U CN 2011200424335U CN 201120042433 U CN201120042433 U CN 201120042433U CN 201991844 U CN201991844 U CN 201991844U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model relates to an auxiliary spring thread energy-storing oil cylinder that consists of a cylinder body (1), a fixing spring screw (2), a piston (3), a tension spring (4), a sealing ring (5), a spring gasket (6) and a cylindrical pin (7). The oil cylinder is characterized in that the fixing spring screw (2) of which the outer periphery is made into an arc outer thread, the piston (3) of which an inner hole is directly made into an arc internal thread, and the tension spring (4) form an auxiliary spring thread energy-storing device; the cylindrical hole wall of the cylinder body (1) is provided with two annular slot installation sealing rings (5); the hole bottom is provided with a common threaded hole for installing the fixing spring screw (2); and a piping threaded hole is axial or radial and used for installing an oil supply joint. By adopting the important characteristic of the auxiliary spring thread energy-storing device and using the key measure of cutting a blind hole in the piston to make the arc internal thread, simple structure, small size, few parts, common technology and low cost are realized. The auxiliary spring thread energy-storing oil cylinder is especially applicable to a miniature or micro moving working environment, thus becoming a general element in the technical field of hydraulic drive. The energy stored by the tension spring is measured and controlled by a tension scale, a torsion wrench and other measuring equipment and tools. Therefore, the accurate and reliable resetting function can be realized. When only one pipe needs to supply pressure oil in a single direction, the oil cylinder can achieve the effect of a double-function oil cylinder and the number of the pipe fittings of the hydraulic system is reduced by 1/2. The principle and structure of the auxiliary spring thread energy-storing device are also applicable to air pressure drive and other working components requiring energy-storing return or the mechanical field.
Description
Technical field
The utility model relates to a kind of spring screw thread energy storage type oil cylinder of joining, and can be called for short spring energy oil cylinder, is the general hydraulic element of hydraulic transmission technology field.Obviously,, design and produce and become to join spring screw thread energy storage type cylinder, also can be used as the general gas-pressure component of Pneumatic Transmission technical field according to same principle of the present utility model.
Technical background
Extension spring of the prior art early has document to illustrate:
Agricultural machinery research institute of First Machinery Industry Department compiles, China Machine Press's version in 1973, " among the Agricultural Machinery Design handbook volume two P400 table 11-1 listed " extension spring ", pattern and explanatory note that " two ends are furnished with the spiral piece for configuration shackle or other connecting piece " wherein arranged, 8 kinds of shackle patterns such as (a)-(h) are arranged simultaneously, so that being connected of extension spring two ends and operation mechanism in P401 Figure 11-1.
Energy storage return oil cylinder of the prior art, what be seen in document has a China national Department of Intellectual Property patent documentation data:
The air spring is from return oil hydraulic cylinder (02282182.1);
Single-cylinder elastic energy storage piston type oil hydraulic cylinder (97201173.0);
The reset open type oil cylinder (200720104143.2) of permanent braking gap of all-hydraulic dish spring;
The reset open type oil cylinder (200720104145.1) of permanent braking gap of all-hydraulic extension spring.
Above-mentioned all various oil cylinders, though the energy storage reset function is also arranged, wherein a kind of even also used the feature that extension spring resets, but " joining the spring screw thread " this key character all do not possessed, more do not utilize piston inner hole directly to make this key measure of arc internal thread; The Placement of above-mentioned various extension springs end does not all have " straight section connection " or " pin-and-hole connection " such feature; The complex structure so they all seem, volume is very big, is difficult to become the universal component of hydraulic transmission technology field.
The utility model is at the problems referred to above, provide the arc internal thread this key character, utilize simultaneously at piston inner hole and directly make this key measure of arc internal thread, and with arc internal thread and arc outside thread add extension spring constitute " joining the spring screw thread " this have the structure of innovative idea, reach the requirement of stored energy; So realized simple in structurely, volume is very little, is specially adapted to working environment miniature, fine motion, thereby can become the universal component of hydraulic transmission technology field.
Summary of the invention
The utility model is joined spring screw thread energy storage type oil cylinder, is made of cylinder body, solid spring screw, piston, extension spring, seal ring, spring washer, straight pin.It is characterized in that: make the externally threaded solid spring screw of arc, endoporus by the periphery and directly make piston, these 3 parts of extension spring of arc internal thread and constitute a kind of spring screw thread accumulator of joining; Physical dimension between these 3 parts has following interrelated:
Arc internal thread nominal size: big footpath=D, path=D
1, basic profile is a circular arc, arc radius r=d/2, and pitch=d, length of thread engagement are free end 〉=5d;
Arc outside thread nominal size: big footpath=D
1, path=D
2, basic profile is a circular arc, arc radius r=d/2, and pitch=d, length of thread engagement are fixed end 〉=3d;
Extension spring nominal size: external diameter=D, middle footpath=D
1, internal diameter=D
2, steel wire diameter=d, pitch=d, free height 〉=8d, its free end are cylindrical, fixed end has cylinder pin hole φ or straight section b.
There are 2 roads that the circular groove of seal ring is installed on the cylinder hole wall of cylinder body; Common screw is arranged at the bottom of the hole, and its size is harmonious with solid spring screw; The pipe fitting screw axially or is radially arranged, and its size and fuel-intake connection are harmonious.
Gu the arc outside thread is arranged on the spring screw, this thread head has the pin hole φ of fixing extension spring nose end or the fixing cylndrical surface of extension spring straight section b; Big end end face has spanner hole, and small end has screw thread, and its size and cylinder base screw are harmonious.
Piston has blind hole, and the section inwall has the arc internal thread at the bottom of the hole; Piston stretches out the part of cylinder body, needs according to working condition, makes and interconnective bulb of operation mechanism or earrings.
The extension spring two ends are inequality, and free end is cylindrical, is drilled with pin hole φ on the steel wire of fixed end, or are processed into the straight section b that length is equivalent to diameter d.
A kind of spring screw thread energy storage type oil cylinder of joining that the utility model provides comprises the steps:
1), prepare cylinder body: cylinder body cylindrical hole and piston are Spielpassung, and the hole wall circular groove is equipped with seal ring, prevents dielectric leakage; Its axle or radially be shaped on the pipe screw, be convenient to install fuel-intake connection; Common screw is arranged at the bottom of the hole, solid spring screw is installed.
2), prepare piston: piston has blind hole, and the section inwall has the arc internal thread at the bottom of the hole; Piston stretches out the part of cylinder body, needs according to working condition, makes and interconnective bulb of operation mechanism or earrings.
3), prepare solid spring screw: Gu the arc outside thread is arranged on the spring screw, thread head has the cylinder pin hole of joining brill with extension spring, or with the cylndrical surface of the corresponding formation anti-back of extension spring straight section b.Its small end has general screw thread, holds end face central authorities that interior hexagonal spanner hole is arranged greatly.
4), prepare extension spring: the extension spring that spring steel is made, the two ends difference, free end is cylindrical, is drilled with pin hole on the steel wire of fixed end, or is processed into the straight section b that length is equivalent to diameter.
5), during assembling, at first install and join spring screw thread accumulator, the fixed end of extension spring is screwed on the arc outside thread of solid spring screw, when treating that it is threaded to the cylinder pin hole coincidence, insert straight pin, it is fixed, and both are screwed in together in the screw of oil cylinder bottom with interior hexagonal spanner; With the spring washer anti-back.
Subsequently, the turn piston enters in the arc internal thread of piston blind hole the free end from coil to coil of extension spring, piston also gos deep into cylinder body thereupon, when rotation surpasses 3 circles, and the end of the piston cylinder base of having conflicted, continue rotation again, piston stops axial displacement, and the stage casing of extension spring just is drawn out the gap; The number of turns of revolving is many more, and the gap is big more, and spring-back force is big more, and stored energy is many more.With measurers such as draw-bar donamometer, torque spanner, instrument, can measure, control the size that adds spring-back force in advance, the energy pre-storage of joining spring screw thread accumulator is adjusted.
The cylindrical hole of cylinder body and piston periphery are Spielpassung, prevent dielectric leakage with seal ring.Cylinder body axially or radially be shaped on the pipe screw, be convenient to install fuel-intake connection.
The utility model has following beneficial effect than above-mentioned prior art: adopt and to join this key character of spring screw thread accumulator, and utilize in piston the open-blind hole to make this key measure of arc internal thread, realized simple in structure, volume is little, part is few, and technology is common, and cost is low; Be specially adapted to working environment miniature, fine motion, thereby become the universal component of hydraulic transmission technology field.For the energy of extension spring savings,, measure, control, thereby realize reset function accurately and reliably with measurer, instruments such as spring balance, torque spanners; When only needing the unidirectional supply pressure of pipe oily, just can receive the effect of two-way cylinder, make the pipe fitting quantity of hydraulic system reduce 50%
Description of drawings
In order more to be expressly understood the utility model, now will with reference to accompanying drawing the utility model be described simultaneously by the utility model embodiment, wherein:
Fig. 1 is a basic principle structural drawing of the present utility model.
Fig. 2 is the sectional view of cylinder body, and the E-F-G that also is Fig. 3 is to sectional view.
Fig. 3 is that the A-B-C-D of Fig. 2 is to 1/2 sectional view.
Fig. 4 is the sectional view of piston.
Fig. 5 is the sectional view of solid spring screw.
Fig. 6 is the plan view of the fixed extension spring of nose end.
Fig. 7 is the plan view of the fixed extension spring of straight section b.
Fig. 8 is another an embodiment's of the present utility model structural drawing.
In the accompanying drawing:
1. cylinder body, 2. solid spring screw, 3. piston, 4. extension spring, 5. seal ring, 6. spring washer, 7. straight pin;
D. spring external diameter, the big footpath of arc internal thread, D
1. mean diameter of coil, arc internal thread path, the big footpath of arc outside thread, D
2. spring inside diameter, arc outside thread path, d. Spring Steel Wire diameter, pitch, r. Spring Steel Wire radius, radius of arc, ф. cylinder pin hole, a. gap, the b. straight section,
Embodiment
Fig. 1 is a basic principle structural drawing of the present utility model.Constitute by cylinder body (1), solid spring screw (2), piston (3), extension spring (4), seal ring (5), spring washer (6), straight pin (7); It is characterized in that joining spring screw thread accumulator, by the arc internal thread of piston (3) endoporus, arc outside thread and the extension spring (4) on the solid spring screw (2), totally 3 key elements constitute.
The cylindrical hole of cylinder body (1) and piston (3) are Spielpassung, and the hole wall circular groove is equipped with seal ring (5), prevents dielectric leakage; Radially be shaped on the pipe screw at it, be convenient to install fuel-intake connection; Common screw is arranged at the bottom of the hole, solid spring screw (2) is installed.Between extension spring (4) and the solid spring screw (2), fixing with straight pin (7).
Fig. 2 is the sectional view of cylinder body (1), and the E-F-G-H that also is Fig. 3 is to sectional view.Fig. 3 is that the A-B-C-D of Fig. 2 is to 1/2 sectional view.It radially has screw, is convenient to install fuel-intake connection; It axially has 4 through holes, is convenient to connect with operation mechanism.
Fig. 4 is the sectional view of piston (3).Section at the bottom of the blind hole in the piston directly is processed into the arc internal thread: big footpath=D, path=D
1, basic profile: semi-circle, arc radius r=d/2, pitch=d, length of thread engagement are free end length 〉=5d.
Fig. 5 is the sectional view of solid spring screw (2).Big end has arc outside thread, its nominal size: big footpath=D
1, path=D
2, basic profile: semi-circle, arc radius r=d/2, pitch d, length of thread engagement are fixed end length=4d; End face has spanner hole, and small end has regular screw threads.
Fig. 6 is the plan view of the fixed extension spring of nose end.Extension spring nominal size: external diameter=D, middle footpath=D
1, internal diameter=D
2, steel wire diameter=d, pitch=d, spring free height 〉=8d, its fixed end have cylinder pin hole (φ).
Fig. 7 is the plan view of the fixed extension spring of straight section.Its fixed end has straight section (b), and other nominal size is identical with Fig. 6.
Fig. 8 is another an embodiment's of the present utility model structural drawing.3 differences are arranged: the one, the extension spring fixed end adopts the mode of straight section (b); The 2nd, cylinder body is axially having the fuel feeding screw; The 3rd, the part that piston stretches out cylinder body is an earrings; All the other are identical with Fig. 1.
After the utility model is implemented, following beneficial effect is arranged: join this structure characteristic of spring screw thread accumulator owing to adopt, and this key measure of arc internal thread is made in utilization open-blind hole in piston (3), realized simple in structurely, volume is little, and part is few, technology is common, and cost is low; Be specially adapted to working environment miniature, fine motion, thereby become the universal component of hydraulic transmission technology field.For the energy of extension spring (4) savings, with measurer, instruments such as spring balance, torque spanners, measure, control and add the spring energy in advance, realize reset function accurately and reliably; Owing to used the spring energy, as long as during unidirectional supply pressure oil, just can receive the effect of two-way cylinder, make the pipe fitting quantity minimizing 50% of hydraulic system.
Also should illustrate: the utility model applicable scope, be not limited to the hydraulic transmission scope, apparent, be correlated with after the adjustment for some local size, also can be applicable to the Pneumatic Transmission scope; Simultaneously, join this important structure feature of spring screw thread accumulator, also can be used for needing stored energy to reach and reset in other operation mechanism of purpose, so this application area also should belong to authority category of the present utility model.
Above-described only is preferred embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle; some distortion and the improvement made also should be considered as belonging to the protection domain of the utility model patent.
Claims (5)
1. join spring screw thread energy storage type oil cylinder, constitute by cylinder body (1), solid spring screw (2), piston (3), extension spring (4), seal ring (5), spring washer (6), straight pin (7), it is characterized in that: make arc externally threaded spring screw (2), endoporus admittedly by the periphery and directly make the piston (3) of arc internal thread, these 3 a kind of spring screw thread accumulators of joining of parts formation of extension spring (4); Physical dimension between these 3 parts has following interrelated:
Arc internal thread nominal size: big footpath=D, path=D
1, basic profile is a circular arc, arc radius r=d/2, and pitch=d, length of thread engagement are free end 〉=5d;
Arc outside thread nominal size: big footpath=D
1, path=D
2, basic profile is a circular arc, arc radius r=d/2, and pitch=d, length of thread engagement are fixed end 〉=3d;
Extension spring nominal size: external diameter=D, middle footpath=D
1, internal diameter=D
2, steel wire diameter=d, pitch=d, free height 〉=8d, its free end are cylindrical, fixed end has cylinder pin hole (φ) or straight section (b).
2. by the described spring screw thread energy storage type oil cylinder of joining of claim 1, it is characterized in that having 2 roads that the circular groove of seal ring (5) is installed on the cylinder hole wall of described cylinder body (1); Common screw is arranged at the bottom of the hole, and its size is harmonious with solid spring screw; The pipe fitting screw axially or is radially arranged, and its size and fuel-intake connection are harmonious.
3. by the described spring screw thread energy storage type oil cylinder of joining of claim 1, it is characterized in that on the described solid spring screw (2) the arc outside thread being arranged, this thread head has the fixedly pin hole of extension spring nose end (φ) or the fixedly cylndrical surface of extension spring straight section (b); Big end end face has spanner hole, and small end has screw thread, and its size and cylinder body (1) bottom screw is harmonious.
4. by the described spring screw thread energy storage type oil cylinder of joining of claim 1, it is characterized in that described piston (3) has blind hole, the section inwall has the arc internal thread at the bottom of the hole; Piston stretches out the part of cylinder body, makes and interconnective bulb of operation mechanism or earrings.
5. by the described spring screw thread energy storage type oil cylinder of joining of claim 1, it is characterized in that, described extension spring (4), two ends are inequality, and free end is cylindrical, is drilled with pin hole (φ) on the steel wire of fixed end, or is processed into the straight section (b) that length is equivalent to diameter (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200424335U CN201991844U (en) | 2011-02-21 | 2011-02-21 | Auxiliary spring thread energy-storing oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200424335U CN201991844U (en) | 2011-02-21 | 2011-02-21 | Auxiliary spring thread energy-storing oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991844U true CN201991844U (en) | 2011-09-28 |
Family
ID=44668333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200424335U Expired - Fee Related CN201991844U (en) | 2011-02-21 | 2011-02-21 | Auxiliary spring thread energy-storing oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991844U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644628A (en) * | 2011-02-21 | 2012-08-22 | 袁正敏 | Matched thread energy-storage type oil cylinder |
| CN107906076A (en) * | 2017-12-28 | 2018-04-13 | 中国铁道科学研究院铁道科学技术研究发展中心 | A kind of heavy load and the compression spring self-resetting oil cylinder and assembly technology in limited lifting space |
-
2011
- 2011-02-21 CN CN2011200424335U patent/CN201991844U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644628A (en) * | 2011-02-21 | 2012-08-22 | 袁正敏 | Matched thread energy-storage type oil cylinder |
| CN107906076A (en) * | 2017-12-28 | 2018-04-13 | 中国铁道科学研究院铁道科学技术研究发展中心 | A kind of heavy load and the compression spring self-resetting oil cylinder and assembly technology in limited lifting space |
| CN107906076B (en) * | 2017-12-28 | 2023-09-19 | 中国铁道科学研究院铁道科学技术研究发展中心 | Pressure spring self-resetting oil cylinder with heavy load and limited lifting space and assembly process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140221 |