CN102155467B - Collision-damage-prevention stopper - Google Patents

Collision-damage-prevention stopper Download PDF

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Publication number
CN102155467B
CN102155467B CN2011100974058A CN201110097405A CN102155467B CN 102155467 B CN102155467 B CN 102155467B CN 2011100974058 A CN2011100974058 A CN 2011100974058A CN 201110097405 A CN201110097405 A CN 201110097405A CN 102155467 B CN102155467 B CN 102155467B
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Prior art keywords
driving lever
end driving
collision
damage
rear end
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CN102155467A (en
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杨长保
李伦平
曾祥鸿
汤庆乐
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717th Research Institute of CSIC
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717th Research Institute of CSIC
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Abstract

The invention relates to a collision-damage-prevention stopper which is suitable for a limiting control system with limited travel reciprocating motion. The collision-damage-prevention stopper comprises a rack, a limit switch fixed on the rack for controlling operation of an electromechanical system, and an elastic driving lever for switching on and off the limit switch, wherein one end of the elastic driving lever is a front end driving level for directly driving the limit switch, and the other end of the elastic driving lever is a rear end driving level fixedly connected with a reciprocating motion part; a stop pin for limiting the front end driving level, and an elastic stop dog for limiting the rear end driving level are fixed on the rack. The collision-damage-prevention stopper has the advantages that the accurate limiting requirements in the control system can be met, a mechanism can be effectively protected to avoid damage caused by collision, therefore, the reliability of the system is improved.

Description

Collision-damage-prevention stopper
Technical field
The present invention relates to collision-damage-prevention stopper, belong to the emergency protective device technical field in the electric elements, be applicable in the reciprocating limit control system of limited travel.
Background technique
In the reciprocating servo-system of limited travel, cause damage for preventing behind the moving element driving cable, component etc. to equipment, usually use electric limiting and mechanical position limitation that the motion of parts is limited in the specific scope.Thereby electric limiting triggers limit switch disable motor power supply by spacing driving lever and realizes in the relevant position, in use often because mounting point, the installation direction equal error of limit switch and spacing driving lever cause limit switch by damage, it is terminal and break the contact of limit switch when return motion that perhaps spacing driving lever is crossed the contact of limit switch.Mechanical stop is to bump by the part on the moving element and the part on the machine frame system to play position-limiting action, in the situation that moving element speed is high, inertia is large, two parts that bump are very easily by damage.In sum, limit method of the prior art, wherein electric limiting and mechanical position limitation mechanism are all easily by clashing and breaking, and its reliability is Shortcomings all.
Summary of the invention
The object of the invention is to, a kind of collision-damage-prevention stopper is provided: 1, avoid spacing driving lever to break limit switch, avoid spacing driving lever to cross the contact of limit switch terminal and when return motion, break the contact of limit switch; 2, prevent that mechanical position limitation mechanism is owing to collision damages.When component movement arrives the position of setting, disconnect first motor power, carry out again the kinetic energy of snubber rotor-support-foundation system, stop prevents that to greatest extent snubber is by damage by the mechanical position limitation collision at last.
Technological scheme of the present invention is: a kind of collision-damage-prevention stopper, and it comprises frame and is fixed on the limit switch that is used for the operation of controller electric system on the frame, also is useful on the elasticity driving lever of opening and closing limit switch; This elasticity driving lever one end is for directly stirring the front end driving lever of limit switch, the rear end driving lever of the other end for being fixedly connected with reciprocating member; Be fixed on and also be useful on the backing pin spacing to the front end driving lever on the frame, and be used for the flexible block spacing to the rear end driving lever.
Further technological scheme is:
Described collision-damage-prevention stopper, its elasticity driving lever is comprised of two joints, and front end driving lever and rear end driving lever respectively are a joint, and are flexibly connected by joining shaft; Also be connected with between front end driving lever and the rear end driving lever for the spring that cushions and reset.
Described collision-damage-prevention stopper, its spring are one and are sleeved on the joining shaft and the torsion spring be combined with front end driving lever and rear end driving lever respectively in two ends.
Described collision-damage-prevention stopper, its spring are the spring sheets that two ends are connected with driving lever side, rear end with the front end driving lever respectively.
Described collision-damage-prevention stopper, its elasticity driving lever is comprised of two joints, and the front end driving lever is spring sheet, and the rear end driving lever is rigid rod; The front end driving lever is fixed on the driving lever of rear end.
Described collision-damage-prevention stopper, its front end driving lever is fixedly connected as bolt with the rear end driving lever and is connected, or riveted joint, or welding.
Described collision-damage-prevention stopper, its reciprocating member are rotary member, and the rear end driving lever is fixed on the rotatingshaft.
Described collision-damage-prevention stopper, its reciprocating member are Linear reciprocating motion component, and the rear end driving lever is fixed on the straight line motion piece with linear motion guide rail, and linear motion guide rail is fixed on the frame.
Described collision-damage-prevention stopper, its flexible block has the Compress Spring of block head by one and the spring seat of this Compress Spring of installation forms.
Principle of the present invention is that the mechanism kinematic (rotating or straight-line displacement) that will have certain kinetic energy is limited in the specific scope, and snubber is not damaged because of collision.When moving element moves to the position of setting, the front end driving lever of elasticity driving lever extruding limit switch and disconnect motor power, and contact with backing pin and stop to continue pushing limit switch; The rear end driving lever of elasticity driving lever is when the position of arrive setting and the flexible block extruding that bumps, after disconnecting, power supply still travels forward owing to inertia, continue the extruding flexible block, thereby be the potential energy of flexible block with the kinetic transformation of moving element, prevent that correlated parts from fierce collision occuring and damage.When moving element was done return motion, the elasticity driving lever unclamped limit switch, and returned to original state under the spring action that cushions and reset.
Of the present invention and beneficial effect is: 1, impact kinetic energy is had the flexible block absorption of buffer function and is consumed, and the impact resistance of the stressed members such as flexible block and elasticity driving lever is increased dramatically; 2, after the elasticity driving lever of limit switch turned to the angle of setting and touches limit switch, the front end driving lever of elasticity driving lever no longer was rotated further, thereby avoids breaking limit switch.Elasticity driving lever, flexible block and limit switch in the collision-damage-prevention stopper of the present invention are minimum by the probability of damage, and the spacing reliability of snubber is strong.The present invention satisfies the accurate spacing requirement in the control system, and protection mechanism is not collided and damages effectively, thereby improves the reliability of system.
Description of drawings
Figure l is for the crashproof snubber structural representation of to-and-fro motion for rotating;
Fig. 2 is that elasticity driving lever master looks schematic diagram;
Fig. 3 is Fig. 2 plan view;
Fig. 4 is to be straight-line crashproof snubber structure and scheme of installation for to-and-fro motion.
Among the figure, each reference character name is called: 1-frame, 2-flexible block, 2.1-the block head, 2.2-Compress Spring, 2.3-spring seat, the 3-reciprocating member, 3.1-rotatingshaft, 3.2-linear motion guide rail, 3.3-the straight line motion piece, 4-limit switch, 5-backing pin, 6-elasticity driving lever, 6.1-front end driving lever, 6.2-rear end driving lever, the 7-spring, 8-joining shaft, 9-pin.
Embodiment
It is as follows that the invention will be further described in conjunction with the accompanying drawings and embodiments:
Embodiment 1:As shown in Figure 1, 2, 3, be that reciprocating member 3 is rotary member for the crashproof snubber of to-and-fro motion for rotating.The crashproof snubber of the present invention has a frame 1 and is fixed on the limit switch 4 that is used for the operation of controller electric system on the frame 1, the present embodiment is to control the operation of servo-system motor by limit switch 4 control power supplys, also is useful on the elasticity driving lever 6 of opening and closing limit switch 4; These elasticity driving lever 6 one ends are for directly stirring the front end driving lever 6.1 of limit switch 4, the rear end driving lever 6.2 of the other end for being fixedly connected with reciprocating member 3; Be fixed on and also be useful on the backing pin 5 spacing to front end driving lever 6.1 on the frame 1, and be used for the flexible block 2 spacing to rear end driving lever 6.2.Elasticity driving lever 6 is comprised of two joints, and front end driving lever 6.1 respectively is a joint with rear end driving lever 6.2, and is flexibly connected by joining shaft 8; Also be connected with between front end driving lever 6.1 and the rear end driving lever 6.2 for the spring 7 that cushions and reset.Described spring 7 be one be sleeved on the joining shaft 8 and two ends respectively with the torsion spring of front end driving lever 6.1 and 6.2 combinations of rear end driving lever.Reciprocating member 3 is rotary member, and rear end driving lever 6.2 is fixed on the rotatingshaft 3.1.Described flexible block 2 has the Compress Spring 2.2 of block head 2.1 by one and the tubular spring seat 2.3 of this Compress Spring of installation forms.When reciprocating member 3 turns to the angle of setting, front end driving lever 6.1 on the elasticity driving lever 6 touches limit switch 4, and disconnection motor power, front end driving lever 6.1 contacts with backing pin 5 simultaneously, no longer the axis with reciprocating member 3 rotates, then rotate around joining shaft 8, thereby avoid breaking limit switch 4.Rear end driving lever 6.2 on the elasticity driving lever 6 contacts with flexible block 2 simultaneously, rotatingshaft 3.1 is rotated further under effect of inertia, Compress Spring 2.2 in the extruding flexible block 2, this Compress Spring 2.2 is potential energy with kinetic transformation, avoid direct bump, thereby prevent that elasticity driving lever 6 and flexible block 2 are owing to collision damages.
Embodiment 2:As different from Example 1, shown in Fig. 4,2,3, reciprocating member 3 is straight-line to-and-fro motion member, and rear end driving lever 6.2 is fixed on the straight line motion piece 3.3 with linear motion guide rail 3.2, and linear motion guide rail 3.2 is fixed on the frame 1.
Embodiment 3:As different from Example 1, spring 7 is that the spring sheet that the side is connected is connected with front end driving lever 6.1 respectively in two ends with the rear end driving lever.This spring sheet can be a slice, is connected on 6.2 1 sides of front end driving lever 6.1 and rear end driving lever; Also can be two, be fixedly connected on respectively on 6.2 two sides of front end driving lever 6.1 and rear end driving lever.
Embodiment 4:As different from Example 1, described elasticity driving lever 6 is comprised of two joints, and front end driving lever 6.1 is spring sheet, and rear end driving lever 6.2 is rigid rod; Front end driving lever 6.1 is fixed on the rear end driving lever 6.2; Front end driving lever 6.1 is fixedly connected as bolt with rear end driving lever 6.2 and is connected, and also can be riveted joint, or welding.
Claim protection domain of the present invention is not limited to above-described embodiment.

Claims (9)

1. a collision-damage-prevention stopper is characterized in that, it comprises frame (1) and be fixed on the upper limit switch (4) that is used for the operation of controller electric system of frame (1), also is useful on the elasticity driving lever (6) of opening and closing limit switch (4); These elasticity driving lever (6) one ends are for directly stirring the front end driving lever (6.1) of limit switch (4), the rear end driving lever (6.2) of the other end for being fixedly connected with reciprocating member (3); Be fixed on and also be useful on the backing pin (5) spacing to front end driving lever (6.1) on the frame (1), and be used for the flexible block (2) spacing to rear end driving lever (6.2).
2. collision-damage-prevention stopper as claimed in claim 1 is characterized in that, described elasticity driving lever (6) is comprised of two joints, and front end driving lever (6.1) respectively is a joint with rear end driving lever (6.2), and is flexibly connected by joining shaft (8); Also be connected with between front end driving lever (6.1) and the rear end driving lever (6.2) for the spring (7) that cushions and reset.
3. collision-damage-prevention stopper as claimed in claim 2 is characterized in that, described spring (7) be one be sleeved on the joining shaft (8) and two ends respectively with the torsion spring of front end driving lever (6.1) and rear end driving lever (6.2) combination.
4. collision-damage-prevention stopper as claimed in claim 2 is characterized in that, described spring (7) is that two ends are connected 6.2 with front end driving lever (6.1) with the rear end driving lever respectively) spring sheet that is connected of side.
5. collision-damage-prevention stopper as claimed in claim 1 is characterized in that, described elasticity driving lever (6) is comprised of two joints, and front end driving lever (6.1) is spring sheet, and rear end driving lever (6.2) is rigid rod; Front end driving lever (6.1) is fixed on the rear end driving lever (6.2).
6. collision-damage-prevention stopper as claimed in claim 5 is characterized in that, front end driving lever (6.1) is fixedly connected as bolt with rear end driving lever (6.2) and is connected, or riveted joint, or welding.
7. collision-damage-prevention stopper as claimed in claim 1 is characterized in that, reciprocating member (3) is rotary member, and rear end driving lever (6.2) is fixed on the rotatingshaft (3.1).
8. collision-damage-prevention stopper as claimed in claim 1, it is characterized in that, reciprocating member (3) is Linear reciprocating motion component, rear end driving lever (6.2) is fixed on the have linear motion guide rail straight line motion piece (3.3) of (3.2), and linear motion guide rail (3.2) is fixed on the frame (1).
9. collision-damage-prevention stopper as claimed in claim 1 is characterized in that, the spring seat (2.3) that described flexible block (2) has the Compress Spring (2.2) of block head (2.1) by and this Compress Spring is installed forms.
CN2011100974058A 2011-04-19 2011-04-19 Collision-damage-prevention stopper Active CN102155467B (en)

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CN103231991A (en) * 2013-05-22 2013-08-07 江苏句容联合铜材有限公司 Anti-collision method for travelling vehicles in factory building
CN108594863B (en) * 2018-04-03 2021-06-11 北京航天控制仪器研究所 Limiting structure and method for positive and negative 180-degree rotary table
CN108930693A (en) * 2018-08-08 2018-12-04 中电科芜湖通用航空产业技术研究院有限公司 The control system of fluid pressure drive device
CN108930692A (en) * 2018-08-08 2018-12-04 中电科芜湖通用航空产业技术研究院有限公司 The control method of fluid pressure drive device
CN112710195B (en) * 2020-12-29 2023-01-06 华中光电技术研究所(中国船舶重工集团公司第七一七研究所) Bidirectional limiting device for realizing all-dimensional scanning of laser emission rotary table

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CN2581742Y (en) * 2002-11-22 2003-10-22 天津鼎盛工程机械有限公司 Hydraulic caging device
CN201006816Y (en) * 2007-01-31 2008-01-16 泰安市泰山东城热电有限责任公司 Coal slurry conveying equipment tilt cylinder position limiter
CN101415954A (en) * 2006-03-31 2009-04-22 费斯托股份有限两合公司 Fluid-actuated rotary drive
CN202007808U (en) * 2011-04-19 2011-10-12 中国船舶重工集团公司第七一七研究所 Collision damage prevention limit device

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CN2581742Y (en) * 2002-11-22 2003-10-22 天津鼎盛工程机械有限公司 Hydraulic caging device
CN101415954A (en) * 2006-03-31 2009-04-22 费斯托股份有限两合公司 Fluid-actuated rotary drive
CN201006816Y (en) * 2007-01-31 2008-01-16 泰安市泰山东城热电有限责任公司 Coal slurry conveying equipment tilt cylinder position limiter
CN202007808U (en) * 2011-04-19 2011-10-12 中国船舶重工集团公司第七一七研究所 Collision damage prevention limit device

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