CN104358720A - Hydraulic system for balancing integrated block of slewing reducer - Google Patents
Hydraulic system for balancing integrated block of slewing reducer Download PDFInfo
- Publication number
- CN104358720A CN104358720A CN201410610991.5A CN201410610991A CN104358720A CN 104358720 A CN104358720 A CN 104358720A CN 201410610991 A CN201410610991 A CN 201410610991A CN 104358720 A CN104358720 A CN 104358720A
- Authority
- CN
- China
- Prior art keywords
- valve
- slewing
- valves
- hydraulic system
- shuttle valve
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a hydraulic system for balancing an integrated block of a slewing reducer. The hydraulic system for balancing the integrated block of the slewing reducer comprises a crane direction control valve, a shuttle valve, balance valves, overflow valves, a damping plug, a motor and a brake, wherein the crane direction control valve is connected with the motor through the shuttle valve, the two balance valves and the two overflow valves, and the damping plug is serially connected between a control oil way of the shuttle valve and a control oil way at the front of the brake; control oil ways of the two balance valves are connected together in parallel and then are connected with the control oil way of the shuttle valve in parallel; the two overflow valves are connected in parallel and then are connected onto an oil way between the motor and the balance valves. The hydraulic system for balancing the integrated block of the slewing reducer has the advantages that the slewing braking of a lorry-mounted crane is enabled to be more reliable, the lorry-mounted crane can work stably during start and stop of a slewing action or under the impact, the slewing operation is enabled to be more safe and reliable, the gear wear of the slewing reducer is reduced and the service life of the slewing reducer is prolonged.
Description
Technical field
The present invention relates to lorry-mounted crane technical field of hydraulic equipment, be specifically related to a kind of lorry-mounted crane rotary reducer integrated package balanced hydraulic system.
Background technique
The rotary reducer being used for performing revolution action is contained on truck-mounted crane turntable, and integrated package is then contained on rotary reducer.In running, very possible appearance, because starting, stop or impacting and shake, makes rotary reducer gear wear accelerate, thus reduces the life-span of rotary reducer.For preventing above-mentioned situation, on integrated package, generally fill two equilibrium valves, but when turning round frequent movement, rotary reducer gear or serious wear, fit up gap is also bigger than normal.Therefore, two equilibrium valve integrated package has just proved definitely inferior.
Summary of the invention
For the deficiency that above-mentioned prior art exists, the object of this invention is to provide a kind of structure simple rotary reducer integrated package balanced hydraulic system, such that rotary braking is reliable, revolution action is more steady.
Technological scheme of the present invention is: a kind of rotary reducer integrated package balanced hydraulic system, comprise hoist position control valve, shuttle valve, equilibrium valve, relief valve, damping plug, motor, break, it is characterized in that, hoist position control valve is connected with motor by shuttle valve, two equilibrium valves, two relief valves, between the oil circuit control before the oil circuit control and break of shuttle valve, be in series with damping plug; It is in parallel with shuttle valve oil circuit control after the oil circuit control of two equilibrium valves is connected in parallel; Be connected on after two relief valve parallel connections on the oil circuit between motor and equilibrium valve.
Advantage of the present invention: the invention enables lorry-mounted crane rotary braking more reliable, turn round action launching, stop or being subject to impacting time can work reposefully, revolution is operated safer, reliable, reduce rotary reducer gear wear degree, extend the working life of rotary reducer.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is that part-structure of the present invention installs schematic diagram on rotary reducer and integrated package.
Embodiment
Now in conjunction with the following drawings, invention is described in detail.
See Fig. 1, Fig. 2, hoist position control valve 1, shuttle valve 2, equilibrium valve 3, relief valve 4, damping plug 5 are integrated on integrated package 8, and motor 6, break 7 are then arranged on rotary reducer 9.Hoist position control valve 1 is connected with motor 6 by shuttle valve 2, two equilibrium valves 3, two relief valves 4, between the oil circuit control before the oil circuit control and break 7 of shuttle valve 2, be in series with damping plug 5; It is in parallel with the oil circuit control of shuttle valve 2 after the oil circuit control of two equilibrium valves 3 is connected in parallel; Be connected on after the parallel connection of two relief valves 4 on the oil circuit between motor 6 and equilibrium valve 3.
When turning round action launching, stopping and being subject to impacting, working hydraulic pressure oil require arrives the control mouth in break 7 and the control mouth in equilibrium valve 3 by damping plug 5, just can open break 7 and equilibrium valve 3, make rotation oil become path, hoist just starts to turn round action; Oil circuit control between damping plug 5 and break 7 and between damping plug and equilibrium valve 3 has a space L, hydraulic oil is V by the speed of damping plug 5, arrive break 7 through damping plug 5 to control mouth and equilibrium valve 3 and control mouth and just need time T=L/V, during direction of operating control valve 1, working solution force feed first arrives motor operations hydraulic fluid port by shuttle valve 2, equilibrium valve 3, relief valve 4, after transit time T, loop wheel machine just starts to turn round action again, and during this period of time, relief valve absorbs the impact of working solution force feed.
Claims (1)
1. a rotary reducer integrated package balanced hydraulic system, comprise hoist position control valve, shuttle valve, equilibrium valve, relief valve, damping plug, motor, break, it is characterized in that, hoist position control valve is connected with motor by shuttle valve, two equilibrium valves, two relief valves, between the oil circuit control before the oil circuit control and break of shuttle valve, be in series with damping plug; It is in parallel with shuttle valve oil circuit control after the oil circuit control of two equilibrium valves is connected in parallel; Be connected on after two relief valve parallel connections on the oil circuit between motor and equilibrium valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610991.5A CN104358720A (en) | 2014-11-04 | 2014-11-04 | Hydraulic system for balancing integrated block of slewing reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410610991.5A CN104358720A (en) | 2014-11-04 | 2014-11-04 | Hydraulic system for balancing integrated block of slewing reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358720A true CN104358720A (en) | 2015-02-18 |
Family
ID=52526016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610991.5A Pending CN104358720A (en) | 2014-11-04 | 2014-11-04 | Hydraulic system for balancing integrated block of slewing reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358720A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854555A (en) * | 2019-03-11 | 2019-06-07 | 连云港杰瑞自动化有限公司 | High driven at low speed Automatic hydraulic control system and its control method for loading arm |
| CN112483496A (en) * | 2020-11-13 | 2021-03-12 | 宁波卡桑尼液压传动有限公司 | Hydraulic control slewing gear of static pile press and control method thereof |
-
2014
- 2014-11-04 CN CN201410610991.5A patent/CN104358720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854555A (en) * | 2019-03-11 | 2019-06-07 | 连云港杰瑞自动化有限公司 | High driven at low speed Automatic hydraulic control system and its control method for loading arm |
| CN112483496A (en) * | 2020-11-13 | 2021-03-12 | 宁波卡桑尼液压传动有限公司 | Hydraulic control slewing gear of static pile press and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150218 |