CN101818507A - Method for protecting slewing mechanism of mining excavator - Google Patents
Method for protecting slewing mechanism of mining excavator Download PDFInfo
- Publication number
- CN101818507A CN101818507A CN 201010161484 CN201010161484A CN101818507A CN 101818507 A CN101818507 A CN 101818507A CN 201010161484 CN201010161484 CN 201010161484 CN 201010161484 A CN201010161484 A CN 201010161484A CN 101818507 A CN101818507 A CN 101818507A
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Abstract
The invention discloses a method for protecting a slewing mechanism of a mining excavator, which relates to the slewing mechanism of the mining excavator. The method solves the problem that the slewing mechanism is out of control when an excavator slewing master preset disconnects. The technical scheme of the invention is that: a switch is respectively arranged at a leftmost position and a rightmost position of a slewing master controller; the switches serve as the preset of a slewing torque controller together with the preset; when the slewing mechanism is operated, the slewing master controller is operated leftwards or rightwards; at the beginning, a preset signal is sent to the slewing torque controller through a master preset; when the master controller is operated to a maximum position and a switch is closed, the preset signal is the preset of a maximum torque; and in the process of operating the slewing mechanism, if the master preset disconnects, an operator can put the master controller to the maximum position in an opposite direction so as to give an opposite maximum torque preset to the slewing torque controller, thereby braking and stopping the slewing mechanism. The method is applied to the protection of the disconnection of the slewing mechanism master of the mining excavator and improves the safety performance of a system.
Description
Technical field
The present invention relates to the slew gear of mine excavator, during the main order broken string of particularly a kind of mine excavator revolution to the guard method of slew gear.
Background technology
The load characteristic of slewing mechanism of mining excavator belongs to big inertia rotary load.For making it rise, brake steadily, mechanical shock is little, and slew gear adopts has the torque control mode of speed limiting, and promptly main to make given be that torque is given.Because slew gear is torque control, in turning course,, must give an opposing torque given if allow slew gear shut down
When the master made given signal break, given torque was zero, and slew gear just can not be at once out of service.
The slewing mechanism of mining excavator of prior art does not have safeguard measure, when the main order broken string of revolution revolution out of control, the breakneck car accident of pounding can appear.
Summary of the invention
The object of the invention is to overcome the shortcoming that prior art exists, and a kind of guard method of slewing mechanism of mining excavator is provided, the problem out of control that slew gear occurred when solution digger revolving master made given broken string the, thereby the safety of raising system operation.
Technical scheme of the present invention is:
A kind of guard method of slewing mechanism of mining excavator, revolution master controller left, maximum position respectively is provided with a switch to the right, with given given as the rotational torque controller; During the slew gear operation, operation is turned round master controller to the left or to the right, and just having begun given signal is to make the given rotational torque controller that sends to by main, and when master controller was operated the maximum position switch closure, given signal was that torque capacity is given; In the slew gear running, if the master makes given broken string, the operator can get to maximum position in the other direction with master controller, gives reverse torque capacity of rotational torque controller given, can be with the slew gear Brake stop; So just avoid slew gear out of control, guaranteed the safety of system.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the rotational torque controller to be given as two-way given, when making given broken string, also can utilize the given system shutdown that makes in another road, the reliability and the safety that have improved system when main;
(2) avoid turning round and occur pounding the car accident when out of control;
(3) in the long run, produce very big economic benefit.
Description of drawings
Fig. 1 is a functional-block diagram of the present invention.
The present invention is further illustrated below in conjunction with accompanying drawing.
The specific embodiment
As shown in Figure 1, a kind of guard method of slewing mechanism of mining excavator:
(1) at revolution master controller maximum position maximum, maximum two switches to the right of the main order of revolution is set left;
When (2) slew gear moved left, given signal was "+" value, operated maximum position when main order, and the revolution master makes maximum switch closure left, and the state of selector switch is 01, at this moment:
The torque of rotational torque controller is given as maximum given, i.e. M
Max
When (3) slew gear moved to the right, given signal was "-" value, operated maximum position when main order, and the revolution master makes maximum switch closure to the right, and the state of selector switch is 10, at this moment:
It is given that the torque of rotational torque controller is given as the negative sense maximum, promptly-and M
Max
(4) when to the left or to the right maximum position arrive in the main order of revolution, revolution is main make left and maximum to the right switch all not closed, at this moment, the selector switch state is 00, the torque of rotational torque controller is given as the actual given M of handle.
When (5) slew gear is braked,, give the reciprocal torque of rotational torque controller given, make the slew gear parking by the main order of reverse operation revolution;
(6) in the slew gear running, if the master makes given broken string, be M=0, make the slew gear Brake stop, operating personnel will operate maximum position by master controller, the maximum left or maximum to the right switch closure of the main order of revolution gives the reciprocal maximum of rotational torque controller given, and revolution is stopped.
The present invention is applied to the protection that the slewing mechanism of mining excavator master makes broken string, has improved the security performance of system.
Claims (1)
1. the guard method of a slewing mechanism of mining excavator is characterized in that:
(1) at revolution master controller maximum position maximum, maximum two switches to the right of the main order of revolution is set left;
When (2) slew gear moved left, given signal was "+" value, operated maximum position when main order, and the revolution master makes maximum switch closure left, and the state of selector switch is 01, at this moment:
The torque of rotational torque controller is given as maximum given, i.e. M
Max
When (3) slew gear moved to the right, given signal was "-" value, operated maximum position when main order, and the revolution master makes maximum switch closure to the right, and the state of selector switch is 10, at this moment:
It is given that the torque of rotational torque controller is given as the negative sense maximum, promptly-and M
Max
(4) when to the left or to the right maximum position arrive in the main order of revolution, revolution is main make left and maximum to the right switch all not closed, at this moment, the selector switch state is 00, the torque of rotational torque controller is given as the actual given M of handle.
When (5) slew gear is braked,, give the reciprocal torque of rotational torque controller given, make the slew gear parking by the main order of reverse operation revolution;
(6) in the slew gear running, if the master makes given broken string, be M=0, make the slew gear Brake stop, operating personnel will operate maximum position by master controller, the maximum left or maximum to the right switch closure of the main order of revolution gives the reciprocal maximum of rotational torque controller given, and revolution is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161484XA CN101818507B (en) | 2010-04-29 | 2010-04-29 | Method for protecting slewing mechanism of mining excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010161484XA CN101818507B (en) | 2010-04-29 | 2010-04-29 | Method for protecting slewing mechanism of mining excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818507A true CN101818507A (en) | 2010-09-01 |
| CN101818507B CN101818507B (en) | 2011-08-10 |
Family
ID=42653763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010161484XA Expired - Fee Related CN101818507B (en) | 2010-04-29 | 2010-04-29 | Method for protecting slewing mechanism of mining excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818507B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047326A (en) * | 2013-11-27 | 2014-09-17 | 卜建余 | Wheel type trolley for dredging ship |
| CN115506440A (en) * | 2022-08-26 | 2022-12-23 | 太原欧陆机电工程有限公司 | Intelligent protection system and method for out-of-rotation control and computer equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003012271A (en) * | 2001-06-28 | 2003-01-15 | Tsubasa System Co Ltd | Operation condition control method, operation condition control program and operation condition control system |
| CN2587941Y (en) * | 2002-08-14 | 2003-11-26 | 齐占国 | Horizontal rotation mechanism for dredger bucket-arm |
| CN2849336Y (en) * | 2005-10-24 | 2006-12-20 | 中国人民解放军63983部队 | Rotating mechanism |
| CN201003175Y (en) * | 2007-02-12 | 2008-01-09 | 三一重机有限公司 | Small angle slewing equipment for small-sized digger |
-
2010
- 2010-04-29 CN CN201010161484XA patent/CN101818507B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003012271A (en) * | 2001-06-28 | 2003-01-15 | Tsubasa System Co Ltd | Operation condition control method, operation condition control program and operation condition control system |
| CN2587941Y (en) * | 2002-08-14 | 2003-11-26 | 齐占国 | Horizontal rotation mechanism for dredger bucket-arm |
| CN2849336Y (en) * | 2005-10-24 | 2006-12-20 | 中国人民解放军63983部队 | Rotating mechanism |
| CN201003175Y (en) * | 2007-02-12 | 2008-01-09 | 三一重机有限公司 | Small angle slewing equipment for small-sized digger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047326A (en) * | 2013-11-27 | 2014-09-17 | 卜建余 | Wheel type trolley for dredging ship |
| CN115506440A (en) * | 2022-08-26 | 2022-12-23 | 太原欧陆机电工程有限公司 | Intelligent protection system and method for out-of-rotation control and computer equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818507B (en) | 2011-08-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20200429 |