CN202023501U - Up and down limiting device for movable arms of rotary drilling rig - Google Patents
Up and down limiting device for movable arms of rotary drilling rig Download PDFInfo
- Publication number
- CN202023501U CN202023501U CN2011200212628U CN201120021262U CN202023501U CN 202023501 U CN202023501 U CN 202023501U CN 2011200212628 U CN2011200212628 U CN 2011200212628U CN 201120021262 U CN201120021262 U CN 201120021262U CN 202023501 U CN202023501 U CN 202023501U
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- CN
- China
- Prior art keywords
- movable arms
- rotary drilling
- limiting device
- approach switch
- drilling rig
- 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.)
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Abstract
The utility model discloses an up and down limiting device for movable arms of a rotary drilling rig, which belongs to a limiting device for engineering machinery. A controlling system comprises an approach switch, a detecting piece, the movable arms and an installing support, wherein the approach switch is connected with the installing support, the installing support is fixed on the rotary drilling rig, the detecting piece is connected with the movable arms, and the approach switch is arranged on the motion trail of the detecting piece. When an amplitude-changing limitation release switch is turned off, the normal up and down actions of the movable arms can be controlled by a control signal of the approach switch; simultaneously, the movable arms can perform up and down actions normally in the normal working scope; but when the detecting piece on the movable arms does not enter the detection scope of the approach switch, the approach switch does not detect a mobile signal of the movable arms, and a control circuit stops controlling the up and down actions of the movable arms. The up and down limiting device has the advantages that: 1, the structure is simple, and the installation is convenient; 2, the performance is reliable, and the trouble is reduced; the functions of up and down limiting of the movable arms can be realized conveniently and precisely; and the up and down limiting device can be widely applied in various rotary drilling rigs.
Description
Technical field
The utility model relates to a kind of spacing device of engineering machinery, the upper and lower spacing device of particularly a kind of rotary drilling rig swing arm.
Background technology
At present; the realization of rotary drilling rig swing arm upper and lower limit bit function; mostly be installed in the upper and lower of swing arm by travel switch; after the checkout gear of swing arm upper and lower is run into travel switch; realize the function that swing arm can't upper and lower action by control circuit, and then reach the effect of protection rotary drilling rig structure.This method need be installed two travel switches and checkout gear two positions, to consider the control and the wiring of two-way wiring simultaneously, the installation site and the space problem that also have two travel switches, in addition because the inertia problem of action very easily causes the damage of travel switch, so just make the complex structure, performance reliability variation of the upper and lower spacing apparatus control system of rotary drilling rig swing arm, improved manufacturing cost greatly.
The utility model content
The purpose of this utility model is to provide a kind of rotary drilling rig swing arm upper and lower spacing device, solves rotary drilling rig swing arm action inertia and damages gauge tap, and control system complex structure, performance reliability is poor, manufacturing cost is high problem.
The purpose of this utility model is achieved in that this control system comprises near switch, detection lug, swing arm, mounting bracket, be connected on the mounting bracket near switch, mounting bracket is fixed on the rotary drilling rig, and detection lug is connected on the swing arm, is positioned near switch on the movement locus of detection lug.
Beneficial effect, owing to adopted such scheme, when having satisfied the spacing cancel switch of luffing and do not open near the control signal of switch, the control swing arm is done normal upper and lower action; Simultaneously, swing arm is under the situation of normal range of operation condition, and swing arm can normally be done upper and lower action; When but the detection lug on the swing arm does not enter near the switch detection range, do not detect the movable signal of swing arm near switch, control circuit just stops the upper and lower action of swing arm is controlled.The upper and lower spacing device of this rotary drilling rig swing arm uses one near switch and a detection lug, the components and parts of electrical system have seldom been used, the manufacturing cost of having saved simple in structure, reduced the trouble point, improved the performance of car load, solve rotary drilling rig swing arm action inertia and damaged gauge tap, and control system complex structure, performance reliability is poor, manufacturing cost is high problem, reached the purpose of this utility model.
The utility model has the advantages that: 1. simple in structure, easy for installation; 2. dependable performance has reduced the trouble point; Can make things convenient for and realize accurately the upper and lower spacing function of swing arm can being widely used in various rotary drilling rigs.
Description of drawings
Fig. 1 is an example structure figure of the present utility model.
Fig. 2 be among Fig. 1 A to view.
Among the figure, 1, near switch; 2, mounting bracket; 3, detection lug; 4, swing arm.
The specific embodiment
Embodiment 1: this control system comprises near switch 1, detection lug 3, swing arm 4, mounting bracket 2, be connected on the mounting bracket near switch, mounting bracket is fixed on the rotary drilling rig, and detection lug is connected on the swing arm, is positioned near switch on the movement locus of detection lug.
At first the nut of self wearing near switch 1 usefulness is fixed on the mounting bracket 2, apart from swing arm 4 certain detection distance is arranged, with bolt detection lug 3 is fixed on the swing arm 4, because, the fixed-site of detection lug 3, so will fixedly mount near the mounting bracket 2 of switch 1 and make the form that can regulate, can carry out the adjusting of certain distance, satisfy the scope of activities needs of actual conditions swing arm 4.
Claims (1)
1. upper and lower spacing device of rotary drilling rig swing arm, it is characterized in that: this control system comprises near switch, detection lug, swing arm, mounting bracket, be connected on the mounting bracket near switch, mounting bracket is fixed on the rotary drilling rig, detection lug is connected on the swing arm, is positioned near switch on the movement locus of detection lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200212628U CN202023501U (en) | 2011-01-20 | 2011-01-20 | Up and down limiting device for movable arms of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200212628U CN202023501U (en) | 2011-01-20 | 2011-01-20 | Up and down limiting device for movable arms of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023501U true CN202023501U (en) | 2011-11-02 |
Family
ID=44848453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200212628U Expired - Lifetime CN202023501U (en) | 2011-01-20 | 2011-01-20 | Up and down limiting device for movable arms of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023501U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678041A (en) * | 2012-05-30 | 2012-09-19 | 北京市三一重机有限公司 | Movable arm limit device of rotary drilling rig, rotary drilling rig and protection method of rotary drilling rig |
| CN105439053A (en) * | 2015-12-30 | 2016-03-30 | 湖南星邦重工有限公司 | Aerial work platform and scissor device thereof |
| CN112127399A (en) * | 2020-09-27 | 2020-12-25 | 三一重机有限公司 | Operation equipment and engineering machinery |
| CN114148918A (en) * | 2022-02-10 | 2022-03-08 | 江苏格雷特起重机械有限公司 | Device and method for controlling amplitude of crane jib |
-
2011
- 2011-01-20 CN CN2011200212628U patent/CN202023501U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678041A (en) * | 2012-05-30 | 2012-09-19 | 北京市三一重机有限公司 | Movable arm limit device of rotary drilling rig, rotary drilling rig and protection method of rotary drilling rig |
| CN102678041B (en) * | 2012-05-30 | 2014-08-27 | 北京市三一重机有限公司 | Movable arm limit device of rotary drilling rig, rotary drilling rig and protection method of rotary drilling rig |
| CN105439053A (en) * | 2015-12-30 | 2016-03-30 | 湖南星邦重工有限公司 | Aerial work platform and scissor device thereof |
| CN112127399A (en) * | 2020-09-27 | 2020-12-25 | 三一重机有限公司 | Operation equipment and engineering machinery |
| CN114148918A (en) * | 2022-02-10 | 2022-03-08 | 江苏格雷特起重机械有限公司 | Device and method for controlling amplitude of crane jib |
| CN114148918B (en) * | 2022-02-10 | 2022-04-22 | 江苏格雷特起重机械有限公司 | Device and method for controlling amplitude of crane jib |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111102 |