CN201769698U

CN201769698U - Unilateral control creeper with high security

Info

Publication number: CN201769698U
Application number: CN2010202434820U
Authority: CN
Inventors: 王文高; 吴雷; 谭波; 李加航
Original assignee: CHINALCO-SWA COLD ROLLING Co Ltd
Current assignee: CHINALCO-SWA COLD ROLLING Co Ltd
Priority date: 2010-06-30
Filing date: 2010-06-30
Publication date: 2011-03-23
Anticipated expiration: 2020-06-30

Abstract

The utility model discloses a unilateral control creeper with high security, wherein normally closed auxiliary contact terminals of two contactors are switched in coil circuits of a positive control circuit and a negative control circuit in a cross manner to achieve the interlocking function of the control circuits, so that the two contactors cannot be powered on at the same time; the control mode of the unilateral control creeper can ensure that the creeper can move only in one direction during the moving process, and the unexpected accidents that are caused when the creeper move backwards can be avoided; a stay wire of a stop switch is arranged in a stay wire support ring fixed on the upper surface of a vehicle body along the vehicle body, so that the stop switch can be controlled by drawing the stay wire in the stay wire support ring in any position in the direction of the stay wire; and the creeper can be led to stop rapidly in any position when an emergency occurs in the field, so that accidents can be avoided, and the effective control range of an operator on the creeper can be increased.

Description

A kind of high security ground creeping vehicle of unidirectional control

Technical field

The utility model relates to a kind of ground creeping vehicle, specially refers to a kind of ground creeping vehicle that improves processing safety.

Background technology

Ground creeping vehicle is a kind of rail internal work transport vehicle, it has advantages such as simple in structure, that load-carrying capacity is big, be used for machine manufacturing and metallurgical works, cooperate crane or independently finish a kind of instrument that material transports as inside, workshop, its operating mode is finished by electric control system, realize making the ground creeping vehicle three kinds of functions that start, retreat, stop by the control button box that is installed in the ground creeping vehicle both sides, open total power switch during use successively, pin the button of corresponding service direction then, the control ground creeping vehicle travels to overtake or backward, and makes its parking.

In commercial production, by the ground creeping vehicle transported material, because the staff does not carry out or other reasons in strict accordance with operation requirements, often meet accident, even grave accident such as cause casualties, because existing ground creeping vehicle master cock all is the two sides that are fixed on car body, particularly when ground creeping vehicle when retreating, because operating personal is not easy to observe its scope after one's death, when in transportation, occurring unforeseen circumstances suddenly and need emergency cutoff, and operating personal just need go to handle master cock equipment is stopped not at the control button adjacency outside certain distance, often owing to causing serious consequence the opportunity of affecting adversely.

Therefore need be a kind of when emergency episode appears in the ground creeping vehicle scene, can make ground creeping vehicle stop rapidly preventing the generation of accident down at an arbitrary position.

The utility model content

In view of this, the purpose of this utility model provides a kind of high security ground creeping vehicle of unidirectional control, and each starting switch on the assurance ground creeping vehicle can only be controlled ground creeping vehicle and advance forward, can not retreat, and avoids operating personal is caused unexpected injury.

The high security ground creeping vehicle of unidirectional control described in the utility model comprises motor that car body, driving car body advance and the electric control system of controlling motor rotation, and described electric control system includes forward controlling elements, reverse function unit and halt switch; Forward controlling elements and reverse function unit are installed in the both sides of ground creeping vehicle car body respectively; Halt switch is installed in ground creeping vehicle car body upper surface both sides, halt switch is connected with backguy, backguy may extend into the car body two ends along the car body side, described backguy places and is fixed on the car body upper surface and stands on backguy filler ring on the pillar, one end is fixed on the car body backguy filler ring foremost, the other end is fixed on the halt switch, affects the backguy in the backguy filler ring can both control halt switch in the optional position along stayguy direction.

Further, described forward controlling elements comprises the normally open contact of forward starting switch, forward contactless switch, the normally closed interlock and the forward contactless coil part of reverse contactless switch; Oppositely function unit comprises the normally open contact of reverse starting switch, reverse contactless switch, the normally closed interlock and the reverse contactless switch of forward contactless switch; The forward starting switch is in parallel with the normally open contact of forward contactless switch, normally closed interlock and forward contactless coil with reverse contactless switch partly is composed in series forward controlling elements then, oppositely starting switch is in parallel with the normally open contact of reverse contactless switch, and normally closed interlock and the reverse contactless coil with the forward contactless switch partly is composed in series reverse function unit then; Be composed in series electric control system with halt switch after forward controlling elements is in parallel with reverse function unit.

Further, described electric control system also includes travel switch, and travel switch is serially connected in the electric control system.

Further, described travel switch is arranged on along on the two ends of car body direct of travel, when ground creeping vehicle when direct of travel runs into obstacle, the pressure that produces with obstacle disconnects the normally closed interlock of travel switch, thereby ground creeping vehicle is stopped automatically.

Further, the push rod of described travel switch is provided with a baffle plate that has degree of dip, and when ground creeping vehicle ran into obstacle, baffle plate and obstacle pushed, and then promotes push rod.

Further, described halt switch is a normally closed switch.

Further, described travel switch is a normally closed switch.

Further, variable frequency control is adopted in the operation of described motor, has avoided ground creeping vehicle impact to speed reduction gearing when starting and stopping, and avoids ground creeping vehicle starting and stopping the time slip that producing because of inertia of institute's transported object.

The beneficial effects of the utility model: the high security ground creeping vehicle of unidirectional control described in the utility model is because the normally closed auxiliary contact of two contactless switchs inserts the other side's coil circuit, realized interlocking, so two contactless switchs can not be switched on simultaneously, this mode has guaranteed that ground creeping vehicle can only be towards a direction motion in advancing, avoided the contingency that caused when retreating because of ground creeping vehicle, simultaneously when in ground creeping vehicle is advanced, being in an emergency, increased the effective range of control of operating personal, reduced the probability that accident occurs ground creeping vehicle.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is unidirectional control high security ground creeping vehicle structural scheme of mechanism;

Fig. 2 is unidirectional control high security ground creeping vehicle electric control circuit figure.

The specific embodiment

Fig. 1 is unidirectional control high security ground creeping vehicle structural scheme of mechanism; Fig. 2 is unidirectional control high security ground creeping vehicle electric control circuit figure.As shown in the figure, the unidirectional control high security of the utility model ground creeping vehicle comprises motor M that car body 12, driving car body advance and the electric control system of controlling motor rotation, and described electric control system includes forward controlling elements 111, reverse function unit 112 and halt switch 131,132; Forward controlling elements 111 and reverse function unit 112 are installed in the both sides of ground creeping vehicle car body 12 respectively; Halt switch 131,132 is installed in ground creeping vehicle car body 12 upper surface both sides, halt switch 131,132 is connected with backguy 14, backguy may extend into car body 12 two ends along car body 12 sides, described backguy 14 places and is fixed on car body 12 upper surfaces and stands on backguy filler ring 16 on the pillar 15, one end is fixed on the car body 12 backguy filler ring 16 foremost, the other end is fixed on the halt switch 13, affects the backguy 14 in the backguy filler ring 16 can both control halt switch 131,132 in the optional position along backguy 14 directions.

As shown in Figure 2, described forward controlling elements 111 comprises the normally open contact 21 of forward starting switch SB1, forward contactless switch KM1, normally closed interlock 22 and the forward contactless switch KM1 coiler part of reverse contactless switch KM2; Oppositely function unit 112 comprises the normally open contact 25 of reverse starting switch SB2, reverse contactless switch KM2, normally closed interlock 26 and the reverse contactless switch KM2 of forward contactless switch KM1; Forward starting switch SB1 is in parallel with the normally open contact 21 of forward contactless switch KM1, normally closed interlock 22 and forward contactless switch KM1 coiler part with reverse contactless switch KM2 is composed in series forward controlling elements 111 then, oppositely starting switch SB2 is in parallel with the normally open contact 25 of reverse contactless switch KM2, and normally closed interlock 26 and the reverse contactless switch KM2 coiler part with forward contactless switch KM1 is composed in series reverse function unit 112 then; Forward controlling elements 111 is with oppositely function unit 112 backs in parallel and halt switch SB3, SB4 are composed in series electric control system.

Forward contactless switch KM1 adhesive when pressing forward start button SB1, its main contact 23 closures, the normally closed interlock 26 of forward contactless switch KM1 disconnects, cut off the control loop of reverse contactless switch KM2, unclamp behind the SB1 because normally open contact 21 closures of KM1, appointing in the KM1 coil has electric current to pass through, the motor state that keeps on the go; Reverse contactless switch KM2 adhesive when pressing reverse control button SB2, its main contact 24 closures, oppositely the normally closed interlock 22 of contactless switch KM2 disconnects, cut off the control loop of forward contactless switch KM1, guarantee that forward and reverse contactless switch can not be simultaneously, unclamp behind the SB2 because normally open contact 25 closures of KM2, appointing in the KM2 coil has electric current to pass through, the motor state that keeps on the go; When pressing halt switch SB3 or SB4, forward and reverse contactless switch is dead electricity simultaneously, and motor M stops operating.

Described electric control system also includes travel switch SQ1, SQ2, and travel switch SQ1, SQ2 are serially connected in the electric control system.

Travel switch 17 is arranged on along on the two ends of car body 2 direct of travels, when ground creeping vehicle when direct of travel runs into obstacle, the pressure that produces with obstacle disconnects the normally closed interlock of travel switch 17, thereby ground creeping vehicle is stopped automatically.

The push rod of described travel switch 17 is provided with a baffle plate 18 that has degree of dip, and the degree of dip of this baffle plate 18 can be set to 30 °, and when ground creeping vehicle ran into obstacle, baffle plate 18 pushed with obstacle, and then promotes push rod.

Described halt switch 131,132 is a normally closed switch.

Described travel switch 17 is a normally closed switch.

Variable frequency control is adopted in motor M operation, has avoided ground creeping vehicle impact to speed reduction gearing when starting and stopping, and avoids ground creeping vehicle starting and stop the time slip that producing because of inertia of institute's transported object.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. the high security ground creeping vehicle of a unidirectional control, comprise motor (M) that car body (12), driving car body advance and the electric control system of controlling motor rotation, it is characterized in that: described electric control system includes forward controlling elements (111), reverse function unit (112) and halt switch (131,132); Forward controlling elements (111) and reverse function unit (112) are installed in the both sides of ground creeping vehicle car body (12) respectively; Halt switch (131,132) be installed in ground creeping vehicle car body (12) upper surface both sides, halt switch (131,132) be connected with backguy (14), backguy may extend into car body (12) two ends along car body (12) side, described backguy (14) places and is fixed on car body (12) upper surface and stands on backguy filler ring (16) on the pillar (15), one end is fixed on car body (12) the backguy filler ring (16) foremost, the other end is fixed on halt switch (131,132) on, affect the backguy (14) in the backguy filler ring (16) can both control halt switch (131 in optional position along backguy (14) direction, 132).

2. the high security ground creeping vehicle of unidirectional control according to claim 1 is characterized in that: described forward controlling elements (111) comprises the normally open contact (21) of forward starting switch (SB1), forward contactless switch (KM1), the oppositely normally closed interlock (22) and forward contactless switch (KM1) coiler part of contactless switch (KM2); Oppositely function unit (112) comprises the normally open contact (25) of reverse starting switch (SB2), reverse contactless switch (KM2), the normally closed interlock (26) and the reverse contactless switch (KM2) of forward contactless switch (KM1); Forward starting switch (SB1) is in parallel with the normally open contact (21) of forward contactless switch (KM1), normally closed interlock (22) and forward contactless switch (KM1) coiler part with reverse contactless switch (KM2) is composed in series forward controlling elements (111) then, oppositely starting switch (SB2) is in parallel with the normally open contact (25) of reverse contactless switch (KM2), and normally closed interlock (26) and reverse contactless switch (KM2) coiler part with forward contactless switch (KM1) is composed in series reverse function unit (112) then; Forward controlling elements (111) is with oppositely function unit (112) back in parallel and halt switch (SB3, SB4) are composed in series electric control system.

3. the high security ground creeping vehicle of unidirectional control according to claim 2, it is characterized in that: described electric control system also includes travel switch (SQ1, SQ2), and travel switch (SQ1, SQ2) is serially connected in the electric control system.

4. the high security ground creeping vehicle of unidirectional control according to claim 1, it is characterized in that: described travel switch (17) is arranged on along on the two ends of car body (2) direct of travel, when ground creeping vehicle when direct of travel runs into obstacle, the pressure that produces with obstacle disconnects the normally closed interlock of travel switch (17), thereby ground creeping vehicle is stopped automatically.

5. the high security ground creeping vehicle of unidirectional control according to claim 3, it is characterized in that: the push rod of described travel switch (17) is provided with a baffle plate (18) that has degree of dip, when ground creeping vehicle ran into obstacle, baffle plate (18) pushed with obstacle, and then promoted push rod.

6. the high security ground creeping vehicle of unidirectional control according to claim 1 and 2, it is characterized in that: described halt switch (131,132) is a normally closed switch.

7. according to the high security ground creeping vehicle of claim 3 or 4 described unidirectional controls, it is characterized in that: described travel switch (17) is a normally closed switch.

8. the high security ground creeping vehicle of unidirectional control according to claim 1 is characterized in that: described motor (M) operation employing variable frequency control.