CN204783946U - Hydraulic pressure rotary platform buffer module - Google Patents
Hydraulic pressure rotary platform buffer module Download PDFInfo
- Publication number
- CN204783946U CN204783946U CN201520258950.4U CN201520258950U CN204783946U CN 204783946 U CN204783946 U CN 204783946U CN 201520258950 U CN201520258950 U CN 201520258950U CN 204783946 U CN204783946 U CN 204783946U
- Authority
- CN
- China
- Prior art keywords
- valve core
- hole
- connecting sleeve
- module body
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a hydraulic pressure rotary platform buffer module, including module body, buffering valve rod, big nut, spring holder, throttle one -way valve core, adapter sleeve and benefit oil one -way valve core, it has a horizontal through -hole and two the vertical through -holes that have a perfect understanding each other to open on the module body, and the buffering valve rod is installed in the horizontal through -hole of module body to form clearance fit with the module body, mending oily one -way valve core for two and installing both ends in the horizontal through -hole of buffering valve rod, the both ends at the buffering valve rod are installed to two adapter sleeves, mend and be equipped with the spring between oily one -way valve core and adapter sleeve, separate high -pressure oil duct X and oil duct T, the spring holder is installed and is being lain in the big nut of module body tip, and the adapter sleeve between the spring is equipped with. The utility model discloses in can be used to the engineering machinery product, can carry out the dash -control to its speed when rotary mechanism stops, making braking buffer distance at reasonable within range, guarantee vehicle steady operation at work, simultaneously, the compression shock among the hydraulic system has been reduce.
Description
Technical field
The utility model relates to a kind of engineering machinery hydraulic rotary buffer device, and specifically a kind of hydraulic rotating platform buffer module, belongs to hydraulic rotating platform technology field.
Background technique
At present, all-rotation in engineering machinery and half swirl gear more, the excavation part rotating hydraulic system as excavator and loader-digger all realizes rotary motion by oil hydraulic pump, multiple directional control valve, oil hydraulic motor or rotating hydraulic cylinder, swivel bearing or articulated stand etc.In most of hydraulic system, multi-way valve is direct connecting fluid pressure motor or hydraulic jack, between multi-way valve and oil hydraulic motor or hydraulic jack, do not arrange any damping device, and the problem produced therefrom is, in vehicle operation, its whirligig needs frequent braking, braking moment, on the one hand, car load can rock, the relative car load of digging arm also can rock repeatedly, significantly reduces car load working stability and working efficiency, causes driver fatigue; On the other hand, the pressure of hydraulic system instantaneously can be very high, serious impact is caused to each element in rotating hydraulic system, and surge pressure repeatedly can damage the precision parts such as multi-way valve, oil hydraulic motor, hydraulic jack, next damages its metal combination position and hydraulic seal, causes it to lose efficacy at short notice.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of hydraulic rotating platform buffer module, can be used in construction machinery product, cushioning control can be carried out to its speed when rotating machinery stops, make braking buffer distance in rational scope, ensure vehicle stable operation at work; Meanwhile, for rotating hydraulic system, hydraulic shock can be avoided, the hydraulic element in protection rotating hydraulic system and Sealing.
To achieve these goals, a kind of hydraulic rotating platform buffer module that the utility model adopts, comprises module body, buffering valve rod, big nut
, spring seat
, spring
, throttling one-way valve core
, connecting sleeve
, spring
, repairing nonreturn valve core
, big nut
, spring seat
, spring
, throttling one-way valve core
, connecting sleeve
, spring
with repairing nonreturn valve core
, described module body has the through hole of a transverse direction and the through hole of two longitudinal directions, cross through hole and longitudinal hole through; Described buffering valve rod is arranged in the cross through hole of module body, and form Spielpassung with module body can relative movement; Described buffering valve rod has through cross through hole and longitudinal hole; Described repairing nonreturn valve core
be arranged in the cross through hole of buffering valve rod; Described connecting sleeve
be fixedly mounted on the left end of buffering valve rod; Described spring
be arranged on repairing nonreturn valve core
and connecting sleeve
between, and repairing nonreturn valve core is pressed in trimmer valve rod aperture expert sealing into a line, separate high-pressure oil duct X and oil duct T; Described throttling one-way valve core
be arranged on connecting sleeve
hole in, throttling one-way valve core
the conical surface and connecting sleeve
small Holes forms a linear sealing, and by shutoff at connecting sleeve
in hole, throttling one-way valve core
can at connecting sleeve
small distance motion in hole; Described big nut
be arranged on the left end of cross through hole on module body, and fit tightly with module body; Described spring seat
be arranged on big nut
in hole, spring
be arranged on spring seat
with connecting sleeve
between; Described big nut
, spring seat
, spring
, throttling one-way valve core
, connecting sleeve
, spring
and repairing nonreturn valve core
between assembly relation and big nut
, spring seat
, spring
, throttling one-way valve core
, connecting sleeve
, spring
and repairing nonreturn valve core
between assembly relation identical, symmetry is arranged on the right side of buffering valve rod in module body.
Further, described throttling one-way valve core
on be drilled with Small Holes, change Small Holes diameter adjustable braking buffer distance, and there is one-way throttle function.
Further, described buffering valve rod is milled with throttling vee notch and balancing slit, the cylindrical of buffering valve rod and module body endoporus Spielpassung, oil duct X and oil duct T separates by seal section; The repairing nonreturn valve core that buffering valve rod endoporus is installed
with repairing nonreturn valve core
separate oil duct X and oil duct T, play repairing function when negative pressure appears in oil duct X; Change the adjustable braking buffer distance of size of vee notch, and with throttling one-way valve core
on Small Holes coordinate adjustable brake buffer distance.
Preferably, the position near two ends in described module body cross through hole is provided with internal thread, described big nut
and big nut
on be equipped with the outside thread matched with internal thread in module body opening, big nut
, big nut
be threaded with module body.
Preferably, described big nut
and O type circle is installed between module body
, O type circle
with big nut
, module body contact formed sealing; Described big nut
and O type circle is installed between module body
, O type circle
with big nut
, module body contact formed sealing.
Preferably, described buffering valve rod cross through hole is provided with internal thread near the position at two ends, described connecting sleeve
and connecting sleeve
it is upper that all this has the outside thread matched with internal thread on buffering valve rod, buffering valve rod and connecting sleeve
, connecting sleeve
be threaded.O type circle
with connecting sleeve
, buffering valve stem contacts formed sealing; O type circle
with connecting sleeve
, buffering valve stem contacts formed sealing.
Preferably, described throttling one-way valve core
by throttling plug screw
shutoff is at connecting sleeve
in hole, described throttling one-way valve core
by throttling plug screw
shutoff is at connecting sleeve
in hole.
Compared with prior art, the utility model can be applicable in the horizontal rotary mechanism hydraulic system of construction machinery product, makes different motions by the buffering valve rod assembly that is made up of parts such as buffering valve rod etc. under the effect of oil liquid pressure and spring.Can be serially connected between multi-way valve and actuator, when rotating machinery stops, the cushioning control to its speed is achieved by the different motion cushioning valve rod assembly, make braking buffer distance in rational scope, ensure vehicle stable operation at work, solve in existing digging operation operating mode, rotating machinery frequently rapid movement repeatedly, rotating machinery can produce the problem of repeatedly rocking when braking; Meanwhile, for rotating hydraulic system, eliminate the compression shock of hydraulic system, the hydraulic element in protection rotating hydraulic system and Sealing, avoid it to be stressed and impact and damage.In addition, this buffering stem structure is simple, and flexibly, easily process, reliability is high in motion.Whole buffer module compact structure, easy for installation, easily debugging and maintenance, be suitable for multiple hydraulic pressure rotary system, all easily mate with various multi-way valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is buffering valve rod assembly schematic diagram;
Fig. 3 is outline drawing of the present utility model;
Pressue-graph when Fig. 4 is the utility model braking;
Fig. 5 is hydraulic schematic diagram of the present utility model.
In figure: 1, big nut
, 2, spring seat
, 3, O type circle
, 4, spring
, 5, throttling plug screw
, 6, throttling one-way valve core
, 7, O type circle
, 8, connecting sleeve
, 9, spring
, 10, repairing nonreturn valve core
, 11, buffering valve rod, 12, big nut
, 13, spring seat
, 14, O type circle
, 15, spring
, 16, throttling plug screw
, 17, throttling one-way valve core
, 18, O type circle
, 19, connecting sleeve
, 20, spring
, 21, repairing nonreturn valve core
, 22, module body, 23, multi-way valve, 24, actuator.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 to Figure 3, a kind of hydraulic rotating platform buffer module, comprises module body 22, buffering valve rod 11, big nut
1, spring seat
2, spring
4, throttling one-way valve core
6, connecting sleeve
8, spring
9, repairing nonreturn valve core
10, big nut
12, spring seat
13, spring
15, throttling one-way valve core
17, connecting sleeve
19, spring
20 and repairing nonreturn valve core
21, described module body 22 has the through hole of a transverse direction and the through hole of two longitudinal directions, cross through hole and longitudinal hole through; Described buffering valve rod 11 is arranged in the cross through hole of module body 22, and form Spielpassung with module body 22 can relative movement; Described buffering valve rod 11 has through cross through hole and longitudinal hole; Described repairing nonreturn valve core
10 are arranged in the cross through hole of buffering valve rod 11; Described connecting sleeve
8 are fixedly mounted on the left end cushioning valve rod 11; Described spring
9 are arranged on repairing nonreturn valve core
10 and connecting sleeve
between 8, and repairing nonreturn valve core 10 is pressed in buffering valve rod 11 hole expert sealing into a line, separates high-pressure oil duct X and oil duct T; Described throttling one-way valve core
6 are arranged on connecting sleeve
in the hole of 8, throttling one-way valve core
the conical surface of 6 and connecting sleeve
8 Small Holes form a linear sealing, and by shutoff at connecting sleeve
in 8 holes, throttling one-way valve core
6 can at connecting sleeve
small distance motion in 8 holes; Described big nut
1 left end being arranged on cross through hole on module body 22, and fit tightly with module body 22; Described spring seat
2 are arranged on big nut
in 1 hole, spring
4 are arranged on spring seat
2 and connecting sleeve
between 8; Described big nut
12, spring seat
13, spring
15, throttling one-way valve core
17, connecting sleeve
19, spring
20 and repairing nonreturn valve core
assembly relation between 21 and big nut
1, spring seat
2, spring
4, throttling one-way valve core
6, connecting sleeve
8, spring
9 and repairing nonreturn valve core
assembly relation between 10 is identical, and symmetry is arranged on the right side of buffering valve rod 11 in module body 22; Buffering valve rod assembly is positioned at the neutral position of module body 22 by the effect of two ends spring force, can be subject to action of hydraulic force side-to-side movement in module body 22 hole.As shown in Figure 1, two longitudinal holes on A1A2, B1B2 difference representation module body 22, wherein, oil duct X refers to that section to buffering valve rod 11 of the A1 mouth on module body 22, and oil duct Y refers to that section to buffering valve rod 11 of the B2 mouth on module body 22.
Further, described throttling one-way valve core
be drilled with Small Holes on 6, change the adjustable braking buffer distance of Small Holes diameter, and there is one-way throttle function.
Further, described buffering valve rod 11 is milled with throttling vee notch and balancing slit, the cylindrical of buffering valve rod 11 and module body 22 endoporus Spielpassung, oil duct X and oil duct T separates by seal section; The repairing nonreturn valve core that buffering valve rod 11 endoporus is installed
10 and repairing nonreturn valve core
21 separate oil duct X and oil duct T, play repairing function when negative pressure appears in oil duct X; Change the adjustable braking buffer distance of size of vee notch, and with throttling one-way valve core
small Holes on 6 coordinates adjustable brake buffer distance.
Preferably, the position near two ends in described module body 22 cross through hole is provided with internal thread, described big nut
1 and big nut
the outside thread matched with internal thread in module body 22 hole is equipped with, big nut on 12
1, big nut
12 are threaded with module body 22.
Preferably, described big nut
o type circle is installed between 1 and module body 22
3, O type circle
3 and big nut
1, module body 22 contacts and forms sealing; Described big nut
o type circle is installed between 12 and module body 22
14, O type circle
14 and big nut
12, module body 22 contacts and forms sealing.
Preferably, described buffering valve rod 11 cross through hole is provided with internal thread near the position at two ends, described connecting sleeve
8 and connecting sleeve
on 19, all this has the outside thread matched with internal thread on buffering valve rod 11, buffering valve rod 11 and connecting sleeve
8, connecting sleeve
19 are threaded.O type circle
7 and connecting sleeve
8, cushion valve rod 11 and contact formation sealing; O type circle
18 and connecting sleeve
19, cushion valve rod 11 and contact formation sealing.
Preferably, throttling plug screw can be utilized
5 by described throttling one-way valve core
6 shutoff are at connecting sleeve
in 8 holes, utilize throttling plug screw
16 by described throttling one-way valve core
17 shutoff are at connecting sleeve
in 19 holes.
During use, as shown in Figure 5, can this hydraulic rotating platform buffer module be serially connected with in hydraulic rotating oil circuit, be arranged between multi-way valve 23 and actuator 24, specifically the A1 mouth of hydraulic rotating platform buffer module is connected with the A mouth of multi-way valve, B1 mouth is connected with the B mouth of multi-way valve, and is connected with oil cylinder by A2, B2 mouth.
When starting beginning, multi-way valve 23 spool commutates, and fluid arrives actuator 24 oil hydraulic motor or hydraulic jack through A1 hydraulic fluid port, runner X, A2 hydraulic fluid port, due to load effect, can produce pressure in oil duct X, and pressure oil is by throttling one-way valve core
6 apertures, throttling plug screw
5 arrive spring chamber, after spring chamber sets up pressure, act on buffering valve rod 11 one end, promote buffering valve rod 11 to the other end motion, due to throttling one-way valve core
6 orifice restriction effects, the motion of buffering valve rod 11 needs certain hour, run duration and throttling one-way valve core
the size of 6 apertures inversely, until connecting sleeve
19 right-hand members and spring seat
stop motion after 13 contacts, now low pressure oil duct Y and oil duct T connects by the triangle throttling groove cushioned on valve rod 11; When braking, driver unclamps pilot handle, multi-way valve 23 spool gets back to meta by spring force, due to multi-way valve meta O type function, back oil road Y hydraulic oil is by multi-way valve shutoff choke-out, and simultaneously because the existence of swirl gear motional inertia, back oil road Y pressure raises rapidly, now by the triangle throttling notch on buffering valve rod 11, part fluid is released into oil duct T, avoids back oil road Y pressure sharply to raise; Meanwhile, pressure oil is by throttling one-way valve core
17 apertures, throttling plug screw
16 arrive right side spring chamber, promote trimmer valve bar 11 to the other end motion, close the vee notch on buffering valve rod 11 gradually, due to throttling one-way valve core after the spring chamber build-up pressure of right side
17 orifice restriction effects, the motion of buffering valve rod 11 needs certain hour, and this time length can pass through throttling one-way valve core
aperture on 17 controls, and buffer distance is by throttling one-way valve core
aperture on 17 and the vee notch size cushioned on valve rod 11 control; Therefore, when braking, even if multi-way valve 23 valve rod returning meta rapidly, due to the existence of throttling vee notch on buffering valve rod, the pressure oil part of enclosed cavity can be discharged, reaching buffering object; Meanwhile, crude oil road X pressure reduces even negative pressure along with rotating machinery motion, and at this moment T oral fluid force feed can overcome spring
the spring force of 9 backs down repairing nonreturn valve core
10 to oil duct X repairings, reach repairing function, and effective anti-locking system inhales empty generation bubble, safeguards the stability of hydraulic oil.
As shown in Figure 4, increase ratio is comparatively mild in time can to find out retardation pressure from figure more intuitively, effectively have adjusted braking buffer distance for pressue-graph during the utility model braking; Retardation pressure impact peak value obviously reduces, and prevents Impact in Hydraulic System, extends the components and parts life-span.
From said structure, buffering valve rod assembly be made up of buffering valve rod etc. is positioned at the neutral position of module body 22 by the effect of two ends spring force, can be subject to action of hydraulic force side-to-side movement, and then opening and closing cushions the throttling groove on valve rod 11 in module body 22 hole.The utility model hydraulic rotating platform buffer module has buffering and repairing function, can be used in construction machinery product, be suitable for multiple hydraulic pressure rotary system, all easily mate with various multi-way valve, be serially connected with in hydraulic rotating oil circuit, be specifically arranged between multi-way valve and actuator, cushioning control can be carried out to its speed when rotating machinery stops, make braking buffer distance in rational scope, ensure vehicle stable operation at work; Meanwhile, for rotating hydraulic system, eliminate the compression shock of hydraulic system, the hydraulic element in protection rotating hydraulic system and Sealing, avoid it to be stressed and impact and damage.Wherein cushion stem structure simple, flexibly, easily process, reliability is high in motion.In addition, its compact structure, easy for installation, easily debugging and maintenance.
Claims (7)
1. a hydraulic rotating platform buffer module, it is characterized in that, comprise module body (22), buffering valve rod (11), big nut I(1), spring seat I(2), spring I(4), throttling one-way valve core I(6), connecting sleeve I(8), spring II(9), repairing nonreturn valve core I(10), big nut II(12), spring seat II(13), spring III(15), throttling one-way valve core II(17), connecting sleeve II(19), spring IV(20) and repairing nonreturn valve core II(21), described module body (22) has the through hole of a transverse direction and the through hole of two longitudinal directions, cross through hole and longitudinal hole through, described buffering valve rod (11) is arranged in the cross through hole of module body (22), and form Spielpassung with module body (22) can relative movement, described buffering valve rod (11) has through cross through hole and longitudinal hole, described repairing nonreturn valve core I(10) be arranged in the cross through hole of buffering valve rod (11), described connecting sleeve I(8) be fixedly mounted on the left end cushioning valve rod (11), described spring II(9) be arranged on repairing nonreturn valve core I(10) and connecting sleeve I(8) between, and repairing nonreturn valve core (10) is pressed in buffering valve rod (11) hole expert sealing into a line, separate high-pressure oil duct X and oil duct T, described throttling one-way valve core I(6) be arranged on connecting sleeve I(8) hole in, throttling one-way valve core I(6) the conical surface and connecting sleeve I(8) Small Holes forms a linear sealing, and by shutoff at connecting sleeve I(8) in hole, throttling one-way valve core I(6) can at connecting sleeve I(8) small distance motion in hole, described big nut I(1) be arranged on the left end that module body (22) goes up cross through hole, and fit tightly with module body (22), described spring seat I(2) be arranged on big nut I(1) in hole, spring I(4) be arranged on spring seat I(2) and connecting sleeve I(8) between, described big nut II(12), spring seat II(13), spring III(15), throttling one-way valve core II(17), connecting sleeve II(19), spring IV(20) and repairing nonreturn valve core II(21) between assembly relation and big nut I(1), spring seat I(2), spring I(4), throttling one-way valve core I(6), connecting sleeve I(8), spring II(9) and repairing nonreturn valve core I(10) between assembly relation identical, symmetry is arranged on the right side of buffering valve rod (11) in module body (22).
2. a kind of hydraulic rotating platform buffer module according to claim 1, is characterized in that, described throttling one-way valve core I(6) on be drilled with Small Holes, carry out adjustable brake buffer distance by changing Small Holes diameter.
3. a kind of hydraulic rotating platform buffer module according to claim 2, it is characterized in that, described buffering valve rod (11) is milled with throttling vee notch and balancing slit, the cylindrical of buffering valve rod (11) and module body (22) endoporus Spielpassung, oil duct X and oil duct T separates by seal section; The repairing nonreturn valve core I(10 that buffering valve rod (11) endoporus is installed) and repairing nonreturn valve core II(21) separate oil duct X and oil duct T, repairing function is played when negative pressure appears in oil duct X; By change vee notch size adjustment braking buffer distance, and with throttling one-way valve core I(6) on Small Holes coordinate adjustable brake buffer distance.
4. a kind of hydraulic rotating platform buffer module according to claim 1, it is characterized in that, position near two ends in described module body (22) cross through hole is provided with internal thread, described big nut I(1) and big nut II(12) on be equipped with the outside thread matched with internal thread in module body (22) hole, big nut I(1), big nut II(12) be threaded with module body (22).
5. a kind of hydraulic rotating platform buffer module according to claim 1, it is characterized in that, described big nut I(1) and module body (22) between O type circle I(3 is installed), O type circle I(3) with big nut I(1), module body (22) contacts to be formed and seals; Described big nut II(12) and module body (22) between O type circle III(14 is installed), O type circle III(14) with big nut II(12), module body (22) contacts to be formed and seals.
6. a kind of hydraulic rotating platform buffer module according to claim 1, it is characterized in that, described buffering valve rod (11) cross through hole is provided with internal thread near the position at two ends, described connecting sleeve I(8) and connecting sleeve II(19) it is upper that all this has the outside thread that upper internal thread matches with buffering valve rod (11), buffering valve rod (11) and connecting sleeve I(8), connecting sleeve II(19) be threaded; O type circle II(7) with connecting sleeve I(8), cushion valve rod (11) and contact to be formed and seal; O type circle IV(18) with connecting sleeve II(19), cushion valve rod (11) and contact to be formed and seal.
7. a kind of hydraulic rotating platform buffer module according to claim 1, it is characterized in that, described throttling one-way valve core I(6) by throttling plug screw I(5) shutoff is at connecting sleeve I(8) in hole, described throttling one-way valve core II(17) by throttling plug screw II(16) shutoff is at connecting sleeve II(19) in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258950.4U CN204783946U (en) | 2015-04-27 | 2015-04-27 | Hydraulic pressure rotary platform buffer module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258950.4U CN204783946U (en) | 2015-04-27 | 2015-04-27 | Hydraulic pressure rotary platform buffer module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783946U true CN204783946U (en) | 2015-11-18 |
Family
ID=54524002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520258950.4U Withdrawn - After Issue CN204783946U (en) | 2015-04-27 | 2015-04-27 | Hydraulic pressure rotary platform buffer module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
| CN110552928A (en) * | 2019-09-24 | 2019-12-10 | 江苏徐工工程机械研究院有限公司 | Integrated valve and floating hydraulic system |
| CN113819101A (en) * | 2021-09-18 | 2021-12-21 | 重庆红江机械有限责任公司 | Load-sensitive control multi-way valve connecting block |
-
2015
- 2015-04-27 CN CN201520258950.4U patent/CN204783946U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895869A (en) * | 2015-04-27 | 2015-09-09 | 徐工集团工程机械股份有限公司科技分公司 | Buffering module of hydraulic rotation platform |
| CN110552928A (en) * | 2019-09-24 | 2019-12-10 | 江苏徐工工程机械研究院有限公司 | Integrated valve and floating hydraulic system |
| CN113819101A (en) * | 2021-09-18 | 2021-12-21 | 重庆红江机械有限责任公司 | Load-sensitive control multi-way valve connecting block |
| CN113819101B (en) * | 2021-09-18 | 2024-02-13 | 重庆红江机械有限责任公司 | Load sensitive control multiway valve connecting block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170524 |