CN104088847A - Hydraulic machine - Google Patents
Hydraulic machine Download PDFInfo
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- CN104088847A CN104088847A CN201410311595.2A CN201410311595A CN104088847A CN 104088847 A CN104088847 A CN 104088847A CN 201410311595 A CN201410311595 A CN 201410311595A CN 104088847 A CN104088847 A CN 104088847A
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Abstract
The invention discloses a hydraulic machine which comprises a piston rod set, a cylinder body set and one or more transition layer sets which are arranged between the piston rod set and the cylinder body set. A first dirt removal ring, a sealing ring used for a piston rod and a first guide ring are arranged between the upper portion of the piston rod set and the transition layer set. A second sealing ring which is used for a piston and a third guide ring are arranged between the lower portion of the piston rod set and the transition layer set. A fourth guide ring, a third sealing ring used for the piston and a second dirt removal ring are arranged between the upper portion of the transition layer set and the cylinder body set. A first sealing ring used for the piston and a second guide ring are arranged between the lower portion of the transition layer set and the cylinder body set. The overall structure of the hydraulic machine is of a multi-stage embedded and sleeved type, and the hydraulic machine has the advantages of being compact in structure and small in boundary dimension and having two-way power. By means of the hydraulic machine, the problem that a hydraulic pipeline of a multi-stage telescopic double-acting type hydraulic machine is installed inconveniently is solved, and the space occupied by the hydraulic machine is reduced.
Description
Technical field
The present invention is applicable to the large stroke bidirectional power of small size executive component, is specifically related to a kind of multi-stage expansion center oil pipe double action hydraulic press.
Background technique
In all kinds of lowering or hoisting gears, expansion device or reciprocating apparatus design, often adopt that power is large, the hydraulic press of reliable operation is done executive component.
When length dimension is restricted, adopt the hydraulic press of multi-stage telescopic.Providing under the condition of Bidirectional power, adopt double-acting piston hydraulic press.
When length dimension is restricted and need to provides under the condition of Bidirectional power, adopt multi-stage expansion double action hydraulic press, but the outside of conventional multi-stage expansion hydraulic press need attach extension type hydraulic pipe line simultaneously, bring very large difficulty to the design of lowering or hoisting gear, in a lot of situations, even cannot realize.
Summary of the invention
The invention provides a kind of multi-stage expansion center oil pipe double action hydraulic press, object is to overcome traditional multi-stage expansion double action hydraulic press hydraulic pipe line inconvenient problem is installed, and reduces taking up room of hydraulic press.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hydraulic press, comprise piston rod group, cylinder body group and be located at piston rod group and cylinder body group between one or more transition layer groups, between piston rod group top and transition layer group, be provided with the first decontamination ring, seal ring and the first guide ring for piston rod, between piston rod group bottom and transition layer group, be provided with the second seal ring and the 3rd guide ring for piston, between transition layer group top and cylinder body group, be provided with the 4th guide ring, the 3rd seal ring and the second decontamination ring for piston, between transition layer group bottom and cylinder body group, be provided with the first seal ring and the second guide ring for piston.
Described a kind of hydraulic press, its piston rod group comprises inner piston rod and is stuck in the first semi-ring in the circular groove of inner piston rod, the first semi-ring both sides are connected with the first pressure ring and the first baffle ring by the second screw, are also provided with the first beam being stuck in the first baffle ring circular groove on inner piston rod.
Described a kind of hydraulic press, its cylinder body group is formed by connecting by outer cylinder head, outer cylinder body and bottom, between outer cylinder head and outer cylinder body, be welded to connect, outer cylinder body is connected by the 3rd screw with bottom, between outer cylinder body and bottom, by the second O-ring seals, seal, outer cylinder body top is welded with bypass oil pipe, and the bottom of bottom is welded with center oil pipe, is also welded with mounting flange on outer cylinder body.
Described a kind of hydraulic press, its transition layer group is by outer piston bar, inner cylinder body and interior cylinder head are formed by connecting, between inner cylinder body and interior cylinder head, be welded to connect, between outer piston bar and inner cylinder body and between outer piston bar and interior cylinder head, be Spielpassung, between outer piston bar and interior cylinder head, be provided with the first O-ring seals, interior cylinder head is provided with circular groove, circular groove is provided with the second semi-ring, the second semi-ring is provided with the second pressure ring outward, the second pressure ring is fixed on the second baffle ring by the first screw, on outer piston bar, be also provided with the second beam being stuck in the second baffle ring circular groove, the bottom of the top of inner cylinder body and outer piston bar is equipped with oilhole.
The invention has the beneficial effects as follows: general structure is multistage edge shell type to have that compact structure, boundary dimension are little, the feature of Bidirectional power, can solve multi-stage expansion double action hydraulic press hydraulic pipe line inconvenient problem is installed, reduce taking up room of hydraulic press.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of piston rod group of the present invention;
Fig. 3 is the structural representation of cylinder body group of the present invention;
Fig. 4 is the structural representation of transition layer group of the present invention.
Each reference character is: 1-piston rod group, the 2-the first decontamination ring, 3-piston rod seal ring, the 4-the first guide ring, 5-cylinder body group, 6-piston the first seal ring, the 7-the second guide ring, 8-piston the second seal ring, the 9-the three guide ring, the 10-the four guide ring, the 3rd seal ring for 11-piston, the 12-the second decontamination ring, 13-transition layer group, the 14-the first screw, the 15-the first pressure ring, the 16-the first semi-ring, the 17-the first baffle ring, the 18-the first beam, 19-inner piston rod, the 20-the second semi-ring, the 21-the second pressure ring, the 22-the second baffle ring, the 23-the second beam, the 24-the first O-ring seals, 25-outer piston bar, 26-inner cylinder body, 27-interior cylinder head, 28-outer cylinder head, 29-bypass oil pipe, 30-outer cylinder body, 31-flange, 32-bottom, the 33-the second O-ring seals, the 34-the three screw, 35-center oil pipe, the 44-the second screw, 45-oilhole.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The invention discloses a kind of hydraulic press, comprise and be located at the piston rod group 1 that innermost layer connects operating load, be located at the fixed hydraulic cylinder body group 5 of outermost surface and be located at piston rod group 1 and cylinder body group 5 between one or more transition layer groups 13, Figure 1 shows that the project organization that only contains a transition layer, between piston rod group 1 top and transition layer group 13, be provided with the first decontamination ring 2, seal ring 3 and the first guide ring 4 for piston rod, between piston rod group 1 bottom and transition layer group 13, be provided with the second seal ring 8 and the 3rd guide ring 9 for piston, between transition layer group 13 tops and cylinder body group 5, be provided with the 4th guide ring 10, the 3rd seal ring 11 and the second decontamination ring 12 for piston, between transition layer group 13 bottoms and cylinder body group 5, be provided with the first seal ring 6 and the second guide ring 7 for piston.
As shown in Figure 2, described piston rod group 1 comprises inner piston rod 19 and is stuck in the first semi-ring 16 in the circular groove of inner piston rod 19, the first semi-ring 16 both sides are connected with the first pressure ring 15 and the first baffle ring 17 by the second screw 44, are also provided with the first beam 18 in the circular groove that is stuck in the first baffle ring 17 on inner piston rod 19.
As shown in Figure 3, described cylinder body group 5 is formed by connecting by outer cylinder head 28, outer cylinder body 30 and bottom 32, between outer cylinder head 28 and outer cylinder body 30, be welded to connect, outer cylinder body 30 is connected by the 3rd screw 34 with bottom 32, between outer cylinder body 30 and bottom 32, by the second O-ring seals 33, seal, outer cylinder body 30 tops are welded with bypass oil pipe 29, and the bottom of bottom 32 is welded with center oil pipe 35, and the suitable position of outer cylinder body 30 is also welded with mounting flange 31.
As shown in Figure 4, described transition layer group 13 is by outer piston bar 25, inner cylinder body 26 and interior cylinder head 27 are formed by connecting, between inner cylinder body 26 and interior cylinder head 27, be welded to connect, between outer piston bar 25 and inner cylinder body 26 and between outer piston bar 25 and interior cylinder head 27, be Spielpassung, between outer piston bar 25 and interior cylinder head 27, be provided with the first O-ring seals 24, interior cylinder head 27 is provided with circular groove, circular groove is provided with the second semi-ring 20, outer second pressure ring 21 that is provided with of the second semi-ring 20, the second pressure ring 21 is fixed on the second baffle ring 22 by the first screw 14, on outer piston bar 25, be also provided with the second beam 23 being stuck in the second baffle ring 22 circular grooves, the bottom of the top of inner cylinder body 26 and outer piston bar 25 is equipped with oilhole 45.
A plurality of transition layer structures can be analogized design.
When hydraulic press of the present invention stretches out, hydraulic oil enters from center oil pipe 35, promotes transition layer group 13 and stretches out together with piston rod group 1, and when transition layer group 13 reaches the limit of position, piston rod group 1 continues to stretch out, until limit position; Hydraulic oil between piston rod group 1 and transition layer group 13 enters between transition layer group 13 and cylinder body group 5 by the oilhole 45 of inner cylinder body 26 and outer piston bar 25, then by bypass oil pipe 29, returns to fuel tank.
When hydraulic press is regained, hydraulic oil enters between transition layer group 13 and cylinder body group 5 from bypass oil pipe 29, oilhole 45 by outer piston bar 25 and inner cylinder body 26 enters between piston rod group 1 and transition layer group 13 again, promote transition layer group 13 regains together with piston rod group 1, when transition layer group 13 reaches the limit of position, piston rod group 1 continues to regain, until limit position; The oil in the right chamber of hydraulic press returns to fuel tank by center oil pipe 35.
In stretch out/retraction of hydraulic press process, cylinder body group 5 is fixed parts, piston rod group 1 and transition layer group 13 sequentially-operatings, and in Multi-stage cylinder working procedure, without dynamic oil pipe, contour size of the unit(s) is little, has bi-directional drive power.
Hydraulic press general structure of the present invention is multistage edge shell type, outermost surface maintains static, innermost layer connects operating load, there are one or more transition layers centre, when transition layer is double layer construction, internal layer has cylinder body function concurrently, skin has piston rod function concurrently, in, skin all has oilhole, the oilhole of internal layer approaches piston rod seal ring, outer field oilhole approaches piston seal ring, outer field oil circuit is by this channel connection internal layer decline chamber, the equal double acting structure of total travel, there is no the dynamically outer hydraulic pipe line connecting, dynamically the hydraulic pipe line Jun Cong center oil pipe of cylinder body or internal oil pipe arrive working position.In emersion process, the rising chamber injection liquid force feed from center oil pipe to piston rod/piston cylinders at different levels, piston rod/piston cylinders at different levels can be issued to range at the dynamic action of hydraulic oil; In withdrawal process, by the oil duct of bypass oil pipe and transition layer, hydraulic oil can arrive the decline chamber of piston rod/piston cylinders at different levels, and piston rod/piston cylinders at different levels can be regained in piston cylinder completely under the dynamic action of hydraulic oil.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (4)
1. a hydraulic press, it is characterized in that: comprise piston rod group (1), cylinder body group (5) and be located at piston rod group (1) and cylinder body group (5) between one or more transition layer groups (13), between piston rod group (1) top and transition layer group (13), be provided with the first decontamination ring (2), seal ring for piston rod (3) and the first guide ring (4), between piston rod group (1) bottom and transition layer group (13), be provided with the second seal ring for piston (8) and the 3rd guide ring (9), between transition layer group (13) top and cylinder body group (5), be provided with the 4th guide ring (10), the 3rd seal ring (11) and the second decontamination ring (12) for piston, between transition layer group (13) bottom and cylinder body group (5), be provided with the first seal ring for piston (6) and the second guide ring (7).
2. a kind of hydraulic press according to claim 1, it is characterized in that, described piston rod group (1) comprises inner piston rod (19) and is stuck in the first semi-ring (16) in the circular groove of inner piston rod (19), the first semi-ring (16) both sides are connected with the first pressure ring (15) and the first baffle ring (17) by the second screw (44), are also provided with the first beam (18) being stuck in the first baffle ring (17) circular groove on inner piston rod (19).
3. a kind of hydraulic press according to claim 1 and 2, it is characterized in that, described cylinder body group (5) is by outer cylinder head (28), outer cylinder body (30) and bottom (32) are formed by connecting, between outer cylinder head (28) and outer cylinder body (30), be welded to connect, outer cylinder body (30) is connected by the 3rd screw (34) with bottom (32), between outer cylinder body (30) and bottom (32), by the second O-ring seals (33), seal, outer cylinder body (30) top is welded with bypass oil pipe (29), the bottom of bottom (32) is welded with center oil pipe (35), on outer cylinder body (30), be also welded with mounting flange (31).
4. a kind of hydraulic press according to claim 3, it is characterized in that, described transition layer group (13) is by outer piston bar (25), inner cylinder body (26) and interior cylinder head (27) are formed by connecting, between inner cylinder body (26) and interior cylinder head (27), be welded to connect, between outer piston bar (25) and inner cylinder body (26) and between outer piston bar (25) and interior cylinder head (27), be Spielpassung, between outer piston bar (25) and interior cylinder head (27), be provided with the first O-ring seals (24), interior cylinder head (27) is provided with circular groove, circular groove is provided with the second semi-ring (20), outer the second pressure ring (21) that is provided with of the second semi-ring (20), the second pressure ring (21) is fixed on the second baffle ring (22) by the first screw (14), on outer piston bar (25), be also provided with the second beam (23) being stuck in the second baffle ring (22) circular groove, the bottom of the top of inner cylinder body (26) and outer piston bar (25) is equipped with oilhole (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311595.2A CN104088847B (en) | 2014-07-02 | 2014-07-02 | Hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311595.2A CN104088847B (en) | 2014-07-02 | 2014-07-02 | Hydraulic machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104088847A true CN104088847A (en) | 2014-10-08 |
| CN104088847B CN104088847B (en) | 2017-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410311595.2A Active CN104088847B (en) | 2014-07-02 | 2014-07-02 | Hydraulic machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN104088847B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229670A (en) * | 2014-09-04 | 2014-12-24 | 华南理工大学 | Novel rapidly bidirectionally extending and contracting hydraulic press |
| CN104314917A (en) * | 2014-10-10 | 2015-01-28 | 北京机械设备研究所 | Local synchronization multistage oil cylinder applicable to heavy load |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2658886A1 (en) * | 1976-12-24 | 1978-06-29 | Benteler Werke Ag | Multi-stage hydraulic lifting machine - has eccentric telescopic piston and cylinder sections with weather protection for platforms |
| DE3615140A1 (en) * | 1986-05-03 | 1987-11-05 | Joh Tirre Ohg Maschf | Pressure-medium-operated telescopic cylinder with at least two pistons guided one inside the other |
| CN2649841Y (en) * | 2003-09-26 | 2004-10-20 | 江都市永坚有限公司 | Double-acting piston multi-stage hydraulic cylinder (1) |
| CN202621579U (en) * | 2012-05-16 | 2012-12-26 | 无锡西姆莱斯石油专用管制造有限公司 | Structure of opening hydraulic cylinder device of three-roller centering unit |
| CN102852896A (en) * | 2012-07-26 | 2013-01-02 | 沈姝君 | Double-action multistage hydraulic oil cylinder with solid piston rod |
| CN102852880A (en) * | 2012-09-01 | 2013-01-02 | 无锡市福克斯煤矿机械制造有限公司 | Three-station deburring oil cylinder |
| CN202718958U (en) * | 2012-07-26 | 2013-02-06 | 孙斌 | Multistage double-acting hydraulic oil cylinder |
-
2014
- 2014-07-02 CN CN201410311595.2A patent/CN104088847B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2658886A1 (en) * | 1976-12-24 | 1978-06-29 | Benteler Werke Ag | Multi-stage hydraulic lifting machine - has eccentric telescopic piston and cylinder sections with weather protection for platforms |
| DE3615140A1 (en) * | 1986-05-03 | 1987-11-05 | Joh Tirre Ohg Maschf | Pressure-medium-operated telescopic cylinder with at least two pistons guided one inside the other |
| CN2649841Y (en) * | 2003-09-26 | 2004-10-20 | 江都市永坚有限公司 | Double-acting piston multi-stage hydraulic cylinder (1) |
| CN202621579U (en) * | 2012-05-16 | 2012-12-26 | 无锡西姆莱斯石油专用管制造有限公司 | Structure of opening hydraulic cylinder device of three-roller centering unit |
| CN102852896A (en) * | 2012-07-26 | 2013-01-02 | 沈姝君 | Double-action multistage hydraulic oil cylinder with solid piston rod |
| CN202718958U (en) * | 2012-07-26 | 2013-02-06 | 孙斌 | Multistage double-acting hydraulic oil cylinder |
| CN102852880A (en) * | 2012-09-01 | 2013-01-02 | 无锡市福克斯煤矿机械制造有限公司 | Three-station deburring oil cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229670A (en) * | 2014-09-04 | 2014-12-24 | 华南理工大学 | Novel rapidly bidirectionally extending and contracting hydraulic press |
| CN104314917A (en) * | 2014-10-10 | 2015-01-28 | 北京机械设备研究所 | Local synchronization multistage oil cylinder applicable to heavy load |
| CN104314917B (en) * | 2014-10-10 | 2016-06-22 | 北京机械设备研究所 | A kind of suitable in heavy duty local synchronization multi-stage oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104088847B (en) | 2017-05-03 |
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| CB02 | Change of applicant information |
Address after: 430223 Jiangxia City, Wuhan province sunshine road, No. 717, Applicant after: Wuhan Huazhong Tianwei Control Co Ltd Address before: 430223 Jiangxia City, Wuhan province sunshine road, No. 717, Applicant before: WUHAN HUAZHONG TIANWEI OPTOELECTRONIC SYSTEM CO., LTD. |
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