CN202970675U - Hydraulic control system for rotary expansion device of rotary drilling rig - Google Patents
Hydraulic control system for rotary expansion device of rotary drilling rig Download PDFInfo
- Publication number
- CN202970675U CN202970675U CN 201220510864 CN201220510864U CN202970675U CN 202970675 U CN202970675 U CN 202970675U CN 201220510864 CN201220510864 CN 201220510864 CN 201220510864 U CN201220510864 U CN 201220510864U CN 202970675 U CN202970675 U CN 202970675U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- reel
- hydraulic fluid
- circuit converter
- 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- Withdrawn - After Issue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
Images
Abstract
The utility model discloses a hydraulic control system for a rotary expansion device of a rotary drilling rig and belongs to the field of piling mechanisms. The hydraulic control system achieves that the rotary drilling rig can carry out transverse expansion after drilling into the ground, and comprises a multiple unit valve pressurizing link, a main hoisting control link, an oil circuit converter, a reel control valve block, reel motors, a bypass check valve and a back pressure overflow valve. The oil circuit converter converts a fixed oil circuit to an oil circuit on a rotary body; hydraulic oil flows into underground oil cylinders via a rotary disc rubber pipe to drive a lateral drilling tool to expand underground; the gravitation of a drilling rod drags the reel to inversely rotate so as to lower the rubber pipe; and the unreeling of the reel is achieved through that pressure oil enters the reel control valve block via the oil circuit converter and then flows into the reel motor to positively rotate to enable the rubber pipe to take back the reel along with the hoisting of the drilling rod. The hydraulic control system has the advantages that underground transverse expansion operation is achieved, the pile column foundation is reinforced, and in addition, since a back pressure throttling valve and a flow distributing and collecting valve which are arranged in the system regulate the flow rate, the rubber pipe and the drilling rod are synchronously hoisted via controlling the hoisting speed, external force borne by the rubber pipe is lowered, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of rotary drilling rig and revolves the enlarging device hydraulic control system, belongs to the hydraulic control field of piling machinery.
Technical background
The domestic and international project building extensively adopts rotary drilling rig as piling machinery at present, yet present most rotary drilling rig is all the vertical hole drill of various diameters, for the steadiness of reinforced concrete pile, abroad occurred can be extending transversely in the down-hole drilling tool, make the concrete pile become Pear-Shaped.This oil circuit that just needs to lead to the down-hole has the work function of controlling the expansion oil cylinder.
Summary of the invention
The invention provides a kind of rotary drilling rig and revolve the enlarging device hydraulic control system, mainly solve to revolve to dig to be drilled in to pierce and to carry out after underground certain depth extending transverselyly, make it that pile becomes Pear-Shaped after the can concrete, will greatly increase steadiness and the intensity of pile.
The present invention realizes with following technical scheme: a kind of rotary drilling rig revolves the enlarging device hydraulic control system, and it comprises banked direction control valves pressurization connection, and the banked direction control valves master winch is controlled connection, the master file motor, hydraulic oil container, the pressurization oil cylinder also comprises solenoid operated directional valve, flow divider, oil-circuit converter, backpressure overflow valve, bypass one way valve, two reel motors, reel control valve piece; Described oil-circuit converter has the pressure oil oil inlet P, leads to and revolve hydraulic fluid port A and hydraulic fluid port B, oil return inlet T and five hydraulic fluid ports of draining hydraulic fluid port X that expand oil cylinder; There are 4 hydraulic fluid ports on described reel control valve piece surface: hydraulic fluid port Pk links through sebific duct on the delivery outlet of oil-circuit converter, and hydraulic fluid port V1 and hydraulic fluid port V2 receive respectively on the input port of reel motor rising, and oil return inlet T 2 is received on the oil return inlet T of oil-circuit converter; The oil-out of two reel motors converges to node D through sebific duct, node D is connected common point E and is connected with the bypass one way valve with backpressure overflow valve, the other end common point F of this two valve receives on oil return line T1, oil return line T1 oil return is received on oil return inlet T 2, meet at node G with oil return inlet T 2, together receive on the oil return inlet T of oil-circuit converter and return to fuel tank; After converging, receives the drain tap X1 of two reel motors on the drain tap X of oil-circuit converter, together with oil-circuit converter inside draining oil sump tank together; Be coupled in banked direction control valves pressurization on the path of rotary drilling rig pressurization oil cylinder and seal in flow divider, get on hydraulic fluid port A, the B that electric rear path switches to oil-circuit converter, revolve the expansion oil cylinder by the operation of operation banked direction control valves pressurization connection.
Owing to having adopted technique scheme, the effect of realization of the present utility model is:
1, solved to revolve to dig to be drilled in to pierce and to have carried out after underground certain depth extending transverselyly, made it that its pile becomes Pear-Shaped after the can concrete, will greatly increase steadiness and the intensity of pile.
2, the gravity that falls by drilling rod of transferring of sebific duct pulls booster reel, and the reel motor is anti-manipulation the (operating mode of similar oil pump) running under external force, and proportional overflow valve and one-way throttle valve make back pressure, and the maintenance of falling of itself and the master winch of drilling rod is synchronizeed.
3, the backrush of sebific duct is the power that relies on the reel motor, and after solenoid operated directional valve 1 gets electric work, pressure oil enters reel control valve piece, for the reel motor provides power, regulates the rate of climb by one-way throttle valve and backpressure overflow valve and synchronizes with the lifting of drilling rod with maintenance.
Adopt flow divider-combiner to two reel motor fuel feeding, automatically adjust two road binders flows one and cause two rubber hose rewinding speed consistent.
4, revolve the power oil that expands oil cylinder and switch through motor controlled flow diverter valves from the pressurized control connection of former rotary drilling rig, another add operation element can make system simplification.
Description of drawings
Fig. 1 is that rotary drilling rig revolves enlarging device hydraulic control system schematic diagram.
In figure: 1, solenoid operated directional valve, 2, flow divider, 3, banked direction control valves pressurization connection, 4, the banked direction control valves master winch is controlled connection, and 5, master file poplar motor, 6, oil-circuit converter, 7, backpressure overflow valve, 7-1, bypass one way valve, 8, the reel motor, 9, reel control valve piece, 9-1, one way valve, 9-2, proportional pressure control valve, 9-3, flow divider-combiner, 9-4,9-5, one-way throttle valve, 9-6, pressure limiting overflow valve, 10, fuel tank, 11, revolve the expansion oil cylinder, 12, the pressurization oil cylinder.
The specific embodiment
Embodiment as shown in Figure 1 is the improvement on existing rotary drilling rig basis.In figure, banked direction control valves pressurization connection 3, the banked direction control valves master winch is controlled connection 4, master file motor 5, hydraulic oil container 10, pressurization oil cylinder 12 is hydraulic system parts of former rotary drilling rig.This hydraulic control system increases again following Hydraulic Elements: solenoid operated directional valve 1, and flow divider 2, oil-circuit converter 6, backpressure overflow valve 7, bypass one way valve 7-1, reel motor 8, reel control valve piece 9 expands oil cylinder 11 with revolving.Reel control valve piece 9 comprises two one way valve 9-1, proportional pressure control valve 9-2, flow divider-combiner 9-3, one-way throttle valve 9-4 and one-way throttle valve 9-5, pressure limiting overflow valve 9-6; 7 plug-in hydraulic pressure sets of elements become to the inner formation of valve piece reel control valve piece 9.There are 4 hydraulic fluid ports on reel control valve piece 9 surfaces: hydraulic fluid port Pk links on the delivery outlet P of oil-circuit converter 6 through sebific duct; Hydraulic fluid port V1 and hydraulic fluid port V2 receive on the input port of reel motor 8 risings, and oil return opening is received on the oil return inlet T of oil-circuit converter 6.
Oil-circuit converter 6 has 5 hydraulic fluid ports: the pressure oil oil inlet P, and lead to and revolve hydraulic fluid port A and the hydraulic fluid port B that expands oil cylinder 11, oil return inlet T, drain tap X.
The oil-out of two reel motors 8 converges to node D through sebific duct C, node D is connected with the common point E that bypass one way valve 7-1 in parallel is connected with backpressure overflow valve, the other end common point F of this two valve receives on oil return line T1, oil return line T1 oil return is received on the oil return inlet T 2 of reel control valve piece, meet at node G with oil return inlet T 2, together receive on the oil return inlet T of oil-circuit converter 6 and return to fuel tank 10.
Receive after the drain tap X1 of two reel motors 8 converges on the drain tap X of oil-circuit converter 6, together get back to fuel tank 10 together with oil-circuit converter inside draining.
Seal in flow divider 2 on the path of former rotary drilling rig banked direction control valves pressurization connection 3 self-pressurization oil cylinders 12 path after switching is forwarded on the hydraulic fluid port A and hydraulic fluid port B of oil-circuit converter 6, expand operation and prepare for revolving.
The course of work is:
1, unit head drives the drilling rod rotation, the fuel feed pump of oil-circuit converter is received the drilling rod lower end and is revolved on the hydraulic fluid port that expands oil cylinder, when manipulation banked direction control valves master file control joint control master file motor 5 processed falls drilling rod, sebific duct on the sebific duct rotating disk is transferred pipe pulling of drilling rod gravity, this moment, turntable motor 8 was handled by counter, (operating mode of similar operation of oil pump) motor through bypass one way valve 7-1 from the fuel tank oil suction, fuel-displacedly converge to proportional pressure control valve 9-2 oil sump tank through one way valve 9-1, separately some oil through flow divider-combiner 9-3 and one-way throttle valve 9-5 through in-line P oil sump tank 10.This moment, proportional pressure control valve 9-2 and one-way throttle valve 9-5 played the back pressure effect.Adjust the pressure that this proportional pressure control valve 9-2 pressure has just produced lower than drilling rod gravity, and regulate the aperture of individual event choke valve 9-5, make the sebific duct rate of release fall to synchronizeing with drilling rod, make the pulling force that sebific duct bears reduce to minimum.
2, unit head revolves and expands the oil supply cylinder oil pipe and rise with drilling rod: when handling the banked direction control valves master winch and control connection 4 and control master file motors 5 and make drilling rod increase simultaneously by solenoid operated directional valve 1 start button, electromagnet Y8 gets electric, solenoid operated directional valve 1 switches, pressure oil is through this solenoid operated directional valve, enter oil-circuit converter 6 and arrive the rotation section, then enter reel motor 8 through one-way throttle valve 9-4,9-5 and flow divider-combiner 9-3.The weight that the reel motor running drags oil in sebific duct and pipe twines the backrush dish with sebific duct.Need to prove, the aperture that will regulate choke valve 9-4 during rising keeps synchronizeing with the master winch drilling rod rising, and makes the sebific duct bearing tension as far as possible little, and is also not lax simultaneously.The function of flow divider-combiner 9-3 is automatically that two road binders adjustment are consistent, and two reel motor synchronous are rotated; Overflow valve 9-6 is the restriction charge oil pressure, protection reel motor.
3, revolve the expansion operation: drop down onto at drilling rod on the degree of depth that needs expansion, operation pressurized cylinder joystick, press simultaneously the automatically controlled button of selector valve 2, selector valve 2 switches, originally the pressure oil that operates pressurized cylinder 12 switches to the A channel of oil-circuit converter and B passage and connects and revolve the oil inlet and outlet that expands oil cylinder and control the flexible of oil cylinder, thereby the side direction drilling tool that drives drilling rod revolves the expansion operation.
Claims (2)
1. a rotary drilling rig revolves the enlarging device hydraulic control system, and it comprises banked direction control valves pressurization connection (3), and the banked direction control valves master winch is controlled connection (4), master file motor (5), hydraulic oil container (10), pressurization oil cylinder (12), it is characterized in that, also comprise solenoid operated directional valve (1), flow divider (2), oil-circuit converter (6), backpressure overflow valve (7), bypass one way valve (7-1), two reel motors (8), reel control valve piece (9); Described oil-circuit converter (6) has pressure oil oil-in (P), leads to and revolve hydraulic fluid port (A) and hydraulic fluid port (B), oil return opening (T) and five hydraulic fluid ports of draining hydraulic fluid port (X) that expand oil cylinder; There are 4 hydraulic fluid ports on described reel control valve piece (9) surface: hydraulic fluid port (Pk) is linked on the delivery outlet of oil-circuit converter (6) through sebific duct, hydraulic fluid port (V1) and hydraulic fluid port (V2) are received respectively on the input port of reel motor (8) rising, and its oil return opening (T2) is received on the oil return opening (T) of oil-circuit converter (6); The oil-out of two reel motors (8) converges to node (D) through sebific duct (C), node (D) is connected 7-1 with the bypass one way valve with backpressure overflow valve (7)) common point (E) be connected, the other end common point (F) of this two valve is received on oil return line (T1), oil return line (T1) oil return is received on the oil return opening (T2) of reel control valve piece, meet at node (G) with oil return opening (T2), together receive on the oil return opening (T) of oil-circuit converter (6) and return to fuel tank (10); After converging, receives the drain tap (X1) of two reel motors (8) on the drain tap (X) of oil-circuit converter (6), together with oil-circuit converter inside draining oil sump tank together; Seal in flow divider (2) at banked direction control valves pressurization connection (3) to the path of rotary drilling rig pressurization oil cylinder (12), get electric rear path and switch on the hydraulic fluid port (A) and hydraulic fluid port (B) of oil-circuit converter, revolve expansion oil cylinder (11) by operation banked direction control valves pressurization connection (3) operation.
2. rotary drilling rig according to claim 1 revolves the enlarging device hydraulic control system, it is characterized in that, described reel control valve piece (9) is in-built following cartridge-type hydraulic valve: two, one way valve (9-1), proportional pressure control valve (9-2), flow divider-combiner (9-3), one-way throttle valve (9-4) and one-way throttle valve (9-5), pressure limiting overflow valve (9-6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510864 CN202970675U (en) | 2012-09-29 | 2012-09-29 | Hydraulic control system for rotary expansion device of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510864 CN202970675U (en) | 2012-09-29 | 2012-09-29 | Hydraulic control system for rotary expansion device of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970675U true CN202970675U (en) | 2013-06-05 |
Family
ID=48511762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510864 Withdrawn - After Issue CN202970675U (en) | 2012-09-29 | 2012-09-29 | Hydraulic control system for rotary expansion device of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970675U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900419A (en) * | 2012-09-29 | 2013-01-30 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN103552457A (en) * | 2013-10-16 | 2014-02-05 | 吉林大学 | Oil/electricity hybrid power rotary drilling rig transmission system |
| CN113482521A (en) * | 2021-07-23 | 2021-10-08 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
-
2012
- 2012-09-29 CN CN 201220510864 patent/CN202970675U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900419A (en) * | 2012-09-29 | 2013-01-30 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN102900419B (en) * | 2012-09-29 | 2015-04-22 | 徐州雷曼机械科技有限公司 | Hydraulic control system for rotary expansion device of rotary drilling rig |
| CN103552457A (en) * | 2013-10-16 | 2014-02-05 | 吉林大学 | Oil/electricity hybrid power rotary drilling rig transmission system |
| CN103552457B (en) * | 2013-10-16 | 2016-01-20 | 吉林大学 | Oil/electric hybrid rotary drilling rig driving system |
| CN113482521A (en) * | 2021-07-23 | 2021-10-08 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
| CN113482521B (en) * | 2021-07-23 | 2024-04-05 | 徐州徐工基础工程机械有限公司 | Parallel power system of rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011416B (en) | Hydraulic excavator flow rate control method and control loop | |
| CN102900419B (en) | Hydraulic control system for rotary expansion device of rotary drilling rig | |
| CN101793042B (en) | Hydraulic loop device used for coordinating machine body rotation and movable arm swinging of digging machine | |
| CN202612232U (en) | Hydraulic motor driving device and long spiral drilling machine main winch adopting same | |
| CN103857926A (en) | Multiple function hydraulic system with a variable displacement pump and a hydrostatic pump-motor | |
| CN101723274B (en) | Main winch retracting and stretching control system of rotary drilling rig and rotary drilling rig | |
| CN202249733U (en) | Hydraulic device of drill | |
| CN201412150Y (en) | Drilling machine integration hydraulic control system | |
| CN202000993U (en) | Novel main hoist floating system for rotary drilling rig | |
| CN103075101B (en) | Mining multi-logical protection loop and multi-linkage functional drill hydraulic system | |
| CN104452850B (en) | Method and its control device that a kind of excavator swing arm potential energy is recycled | |
| CN202970675U (en) | Hydraulic control system for rotary expansion device of rotary drilling rig | |
| CN101503960A (en) | Multi-pump combined driving shield-tunneling blade disc hydraulic system | |
| CN203048476U (en) | Hydraulic winch control system and engineering machinery | |
| CN202131037U (en) | Rapid releasing interflow fuel-return regeneration system of main winch of rotary drilling rig | |
| CN104081065A (en) | Hydraulic pressure control device for swing motor for construction machinery | |
| CN102392840B (en) | Ascending and descending control system for main elevator of rotary drilling machine | |
| CN206090684U (en) | Excavator gyration economizer system with prevent reversal and rock function | |
| CN205953386U (en) | Dig rig hoist actuating system soon | |
| CN205331088U (en) | Vertical shaft type is gallery rig hydraulic system by oneself | |
| CN202322167U (en) | Hydraulic hoisting machine controlling system capable of realizing free releasing of constant tension | |
| CN204385793U (en) | The control device that a kind of excavator swing arm potential energy is recycled | |
| CN103058085A (en) | Winding motor hydraulic system and rotary drilling rig | |
| CN207848069U (en) | A kind of rotation of horizontal directional drilling machine power head prevents reverse control system | |
| CN102704528A (en) | Excavator hydraulic system, control method for excavator hydraulic system and excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150422 |