CN202348123U - Inverted mast jitter-free hydraulic system of rotary drilling rig - Google Patents

Inverted mast jitter-free hydraulic system of rotary drilling rig Download PDF

Info

Publication number
CN202348123U
CN202348123U CN2011204511760U CN201120451176U CN202348123U CN 202348123 U CN202348123 U CN 202348123U CN 2011204511760 U CN2011204511760 U CN 2011204511760U CN 201120451176 U CN201120451176 U CN 201120451176U CN 202348123 U CN202348123 U CN 202348123U
Authority
CN
China
Prior art keywords
mast
drilling rig
hydraulic
rotary drilling
jitter
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.)
Expired - Fee Related
Application number
CN2011204511760U
Other languages
Chinese (zh)
Inventor
黄春华
李小胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUCHAI PILE-DRIVING (CHANGZHOU) Co Ltd
Original Assignee
YUCHAI PILE-DRIVING (CHANGZHOU) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YUCHAI PILE-DRIVING (CHANGZHOU) Co Ltd filed Critical YUCHAI PILE-DRIVING (CHANGZHOU) Co Ltd
Priority to CN2011204511760U priority Critical patent/CN202348123U/en
Application granted granted Critical
Publication of CN202348123U publication Critical patent/CN202348123U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a hydraulic system, in particular to an inverted mast jitter-free hydraulic system of a rotary drilling rig. The hydraulic system comprises a mast cylinder and a balance valve; the balance valve is connected to the mast cylinder; a throttling valve is connected to each of two ends of the balance valve; and the throttling valves realize small hole throttling. Through the hydraulic system, hydraulic oscillation caused by mechanical oscillation is eliminated by using small hole throttling, stable inversion of a mast of the rotary drilling rig is realized, and the effect is improved.

Description

Rotary drilling rig handstand mast exempts to shake hydraulic system
Technical field
The utility model relates to a kind of hydraulic system, and especially a kind of rotary drilling rig handstand mast exempts to shake hydraulic system.
Background technology
The efficient pore-forming equipment of heavy caliber that uses in a kind of foundation construction of rotary drilling rig; Thereby its utilization remains the drilling rod of vertical direction directly rotates, excavates the stake hole that forms the required diameter and the degree of depth on ground fast to ground; This rotary drilling rig since power big, power is strong, easy to use, pore-forming is quick; So in the foundation construction process of the engineering of being widely used in, building; Hydraulic system is the energy delivery system of rotary drilling rig, and the stability of hydraulic system is directly connected to safe, efficient, the energy-conservation degree of rotary drilling rig.Rotary drilling rig makes mast produce slight mechanical oscillation when the handstand mast, and mechanical oscillation makes hydraulic system produce pressure oscillation again, and pressure oscillation can make the frame for movement job insecurity again.Therefore, need a kind of effective scheme to solve the shake of rotary drilling rig handstand mast.
The utility model content
In order to overcome the deficiency of existing rotary drilling rig job insecurity, the utility model provides a kind of rotary drilling rig handstand mast to exempt to shake hydraulic system.
The utility model solves the technical scheme that its technical problem adopted: a kind of rotary drilling rig handstand mast exempts to shake hydraulic system, comprises mast oil cylinder and equalizing valve, and equalizing valve is connected on the mast oil cylinder, and choke valve is connected the equalizing valve two ends.
According to another embodiment of the utility model, comprise that further choke valve is an orifice restriction.
The beneficial effect of the utility model is, this hydraulic system utilizes orifice restriction to eliminate the hydraulic vibration that mechanical oscillation causes, realizes the rotary drilling rig mast that steadily stands upside down, and improved effect.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
1. mast oil cylinders among the figure, 2. equalizing valve, 3. choke valve.
The specific embodiment
Like Fig. 1 is the structural representation of the utility model, and a kind of rotary drilling rig handstand mast exempts to shake hydraulic system, comprises mast oil cylinder 1 and equalizing valve 2, and equalizing valve 2 is connected on the mast oil cylinder 1, and choke valve 3 is connected equalizing valve 2 two ends, and choke valve 3 is an orifice restriction.
At first equalizing valve 2 is installed on the mast oil cylinder 1; Then choke valve 3 is connected and go up equalizing valve 2, last rotary drilling rig makes the hydraulic jack oil-in that enough hydraulic fluid flow rates arranged when the handstand mast, on oil return opening, carries out throttling; Realize the rotary drilling rig mast that steadily stands upside down; This hydraulic system utilizes orifice restriction to eliminate the hydraulic vibration that mechanical oscillation causes, realizes the rotary drilling rig mast that steadily stands upside down, and has improved effect.

Claims (2)

1. a rotary drilling rig handstand mast exempts to shake hydraulic system, comprises mast oil cylinder (1) and equalizing valve (2), and equalizing valve (2) is connected on the mast oil cylinder (1), it is characterized in that, choke valve (3) is connected equalizing valve (2) two ends.
2. a kind of rotary drilling rig handstand mast according to claim 1 exempts to shake hydraulic system, it is characterized in that choke valve (3) is an orifice restriction.
CN2011204511760U 2011-11-15 2011-11-15 Inverted mast jitter-free hydraulic system of rotary drilling rig Expired - Fee Related CN202348123U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204511760U CN202348123U (en) 2011-11-15 2011-11-15 Inverted mast jitter-free hydraulic system of rotary drilling rig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204511760U CN202348123U (en) 2011-11-15 2011-11-15 Inverted mast jitter-free hydraulic system of rotary drilling rig

Publications (1)

Publication Number Publication Date
CN202348123U true CN202348123U (en) 2012-07-25

Family

ID=46537132

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011204511760U Expired - Fee Related CN202348123U (en) 2011-11-15 2011-11-15 Inverted mast jitter-free hydraulic system of rotary drilling rig

Country Status (1)

Country Link
CN (1) CN202348123U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214162A (en) * 2014-08-04 2014-12-17 北京市三一重机有限公司 One-way balance valve as well as mast oil cylinder control system and rotary drilling rig

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214162A (en) * 2014-08-04 2014-12-17 北京市三一重机有限公司 One-way balance valve as well as mast oil cylinder control system and rotary drilling rig

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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: 20120725

Termination date: 20131115