CN111285261A - Crane cart anti-collision braking system and implementation method thereof - Google Patents
Crane cart anti-collision braking system and implementation method thereof Download PDFInfo
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- CN111285261A CN111285261A CN202010258382.3A CN202010258382A CN111285261A CN 111285261 A CN111285261 A CN 111285261A CN 202010258382 A CN202010258382 A CN 202010258382A CN 111285261 A CN111285261 A CN 111285261A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 19
- 230000009467 reduction Effects 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
- B66C15/045—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides a crane cart anti-collision braking system and an implementation method thereof, wherein the crane cart anti-collision braking system comprises a wheel-side brake, a deceleration infrared limit switch, a limit infrared switch and a wheel brake infrared limit switch, and further comprises a supporting mechanism arranged on the upper surface of an end beam of a crane, the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch are sequentially installed on the supporting mechanism from left to right, the installation height of the deceleration infrared limit switch is smaller than that of the limit infrared switch, and the installation height of the limit infrared switch is smaller than that of the wheel brake infrared limit switch; a control box is arranged on the right side of the supporting mechanism, a circuit board is arranged in the control box, and an MCU is arranged on the circuit board; the invention has convenient operation, can detect the distance between two cranes when the crane cart is about to collide, and can stop the crane cart through the distance detection of the crane, thereby preventing the collision of the crane cart.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a crane cart anti-collision braking system and an implementation method thereof.
Background
In production, because the work needs, often install many cranes on the same span, these many cranes are at the working process, can't avoid taking place the work and deal with, install buffer and limit switch on the crane cart among the prior art and prevent the hoist collision, but because crashproof spacing inefficacy and cart stopper adjustment are improper, buffer mounted position is improper etc., the hoist can take place the collision accident in work, these collision accidents not only lead to the hoist to damage, serious even take place the casualty accident, cause serious economic loss.
Disclosure of Invention
The invention aims to provide a crane cart anti-collision braking system which can detect the distance between two cranes when a crane cart is about to collide, and can stop the crane cart through the distance detection of a crane so as to prevent the crane cart from colliding.
The invention is realized by adopting the following method: the utility model provides a braking system is prevented bumping by crane cart which characterized in that: including wheel limit stopper, infrared limit switch of speed reduction, limit infrared switch and the infrared limit switch of wheel braking, its characterized in that: the crane is characterized in that a supporting mechanism is arranged on the upper surface of an end beam of the crane, the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch are sequentially installed on the supporting mechanism from left to right, the installation height of the deceleration infrared limit switch is smaller than that of the limit infrared switch, and the installation height of the limit infrared switch is smaller than that of the wheel brake infrared limit switch; the utility model discloses a wheel limit brake of crane cart, including supporting mechanism, wheel limit brake, wheel brake, wireless communication module, wheel limit switch, limiting infrared switch, wheel brake, wheel limit switch, wireless communication module, wheel limit brake, wireless communication module, the supporting mechanism right side is provided with the control box, be provided with the circuit board in the control box, be provided with MCU on the circuit board, MCU is connected with wheel limit brake, the infrared limit switch of speed reduction, limiting infrared switch and wheel brake, just wheel limit brake, the infrared limit switch of speed reduction, limiting infrared switch and wheel brake through the wire effect with the control box is connected, the control box is through the wireless communication module with the control system wireless communication of crane cart.
Furthermore, the support mechanism comprises a guide rail, a first support rod, a second support rod and a third support rod are embedded in the guide rail from left to right, the second support rod is higher than the first support rod, the third support rod is higher than the second support rod, a plurality of first threaded holes are formed in the front surface of the guide rail, second threaded holes corresponding to the first threaded holes are formed in the lower ends of the first support rod, the second support rod and the third support rod, the speed reduction infrared limit switch is installed at the upper end of the left side surface of the first support rod, the limit infrared switch is installed at the upper end of the left side surface of the second support rod, and the wheel braking infrared limit switch is installed at the upper end of the left side surface of the third support rod.
Furthermore, the lower end of the rear surface of the guide rail is connected with a U-shaped plate for limiting a wire, and a plurality of limiting blocks for limiting the wire in the U-shaped plate are arranged on the upper surface of the U-shaped plate at equal intervals.
Furthermore, the clamping mechanism for locking the wheels of the crane cart by the wheel-side brake is arranged on the lower surface of the end beam of the crane, and the clamping mechanism comprises an electric telescopic cylinder, the lower surface of the end beam of the crane cart is provided with a frame, the frame is arranged on the right side of the electric telescopic cylinder, the tail end of the electric telescopic cylinder is hinged with a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged up and down, the tail end of the first connecting rod is hinged with a first clamping rod for clamping a crane wheel, the tail end of the second connecting rod is hinged with a second clamping rod matched with the first clamping rod, and the first clamping rod and the second clamping rod penetrate through the frame and extend to the front side and the rear side of the wheel rim of the crane cart, and the middle parts of the first clamping rod and the second clamping rod are hinged in the frame.
Another object of the present invention is to provide a method for implementing a collision-proof braking system for a crane cart.
The method for realizing the crane cart anti-collision braking system comprises the following steps:
step S1, when in use, a reflector is arranged at the end part of another crane or track;
step S2, the first support rod, the second support rod and the third support rod are sequentially arranged on the guide rail from left to right under the action of the first threaded hole and the second threaded hole of the bolt screw;
step S3, installing the speed reduction infrared limit switch at the upper end of the left side surface of the first support rod, installing the limit infrared switch at the upper end of the left side surface of the second support rod, and installing the wheel brake infrared limit switch at the upper end of the left side surface of the third support rod;
s4, when the crane gradually approaches to the end of another crane or track, the deceleration infrared limit switch firstly feeds back a signal returned by the reflector, the signal is transmitted to a control system of the crane cart through the wireless communication module, the control system of the crane cart gives a deceleration signal to the cart motor, and the cart motor starts to decelerate; along with the approach of the distance of the reflector, the limit infrared switch feeds back a signal returned by the reflector, a stop signal is given to a cart motor, the cart motor stops, a cart brake signal is given to a cart brake, and the cart brake is braked;
and S5, when the distance is continuously close, the wheel braking infrared limit switch feeds back a signal, the wheel braking infrared limit switch transmits the signal to the MCU, the MCU starts the wheel brake, the wheel brake works, the electric telescopic cylinder moves rightwards to drive the first clamping rod and the second clamping rod to lock the wheels of the crane cart, and therefore the crane cart is braked.
The invention has the beneficial effects that: the device is additionally provided with a deceleration infrared limit switch, a limit infrared switch and a wheel braking infrared limit switch, and is used for realizing distance detection and triggering the limit switches, so that the crane cart can be prevented from collision conveniently; the guide rail is added into the device, so that the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch can be arranged on the guide rail, the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch can move on the guide rail conveniently, and the limit switches can be arranged at different positions of the guide rail for detection; the device is additionally provided with the U-shaped plate, so that a worker can embed the conducting wires into the U-shaped plate for fixation when in use, and the conducting wires are not arranged outside disorderly; the invention has convenient operation, can realize the speed reduction, the limit and the collision prevention of the crane cart, and the wheel-side brake is added in the device, so that the brake of the crane cart can be realized through the action of the wheel-side brake.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the usage state of the present invention.
Fig. 3 is a schematic block diagram of the circuit of the present invention.
Fig. 4 is a working schematic diagram of the anti-collision automatic control brake system of the invention.
Fig. 5 is a structural schematic diagram of the clamping mechanism of the wheel-side brake locking cart wheel in the first state.
Fig. 6 is a structural schematic diagram of the clamping mechanism of the wheel side brake locking cart wheel in the first state.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention provides an embodiment: a crane cart anti-collision braking system comprises a wheel brake 1, a deceleration infrared limit switch 2, a limit infrared switch 3, a wheel brake infrared limit switch 4 and a supporting mechanism 5 arranged on the upper surface of a crane end beam, wherein the deceleration infrared limit switch 2, the limit infrared switch 3 and the wheel brake infrared limit switch 4 are sequentially installed on the supporting mechanism 5 from left to right, the installation height of the deceleration infrared limit switch 2 is smaller than that of the limit infrared switch 3, and the installation height of the limit infrared switch 3 is smaller than that of the wheel brake infrared limit switch 4; the supporting mechanism 5 right side is provided with control box 6, be provided with the circuit board in the control box 6, be provided with MCU on the circuit board, MCU is connected with wheel limit stopper 1, infrared limit switch 2, the infrared limit switch 3 of spacing infrared switch, wheel braking infrared limit switch 4 and wireless communication module, just wheel limit stopper 1, the infrared limit switch 2 of the speed reduction, the infrared limit switch 3 of spacing infrared switch and wheel braking infrared limit switch 4 through the wire effect with control box 6 is connected, control box 6 through the wireless communication module with the control system wireless communication of crane cart, wheel limit stopper 1 sets up in crane cart end beam front end. When the crane gradually approaches to the end part of another crane or track, the deceleration infrared limit switch 2 firstly feeds back a signal returned by the reflector, the signal is transmitted to a control system of the crane cart through the wireless communication module, the control system of the crane cart gives a deceleration signal to the cart motor, and the cart motor starts to decelerate; along with the approach of the distance of the reflector, the limit infrared switch 3 feeds back a signal returned by the reflector, gives a stop signal to a cart motor, stops the cart motor, gives a cart brake signal, and brakes the cart brake; when the distance is continuously close and the wheel braking infrared limit switch 4 feeds back a signal, the wheel braking infrared limit switch 4 transmits the signal to the MCU, the MCU starts the wheel brake 1, the wheel brake 1 works to lock the wheels of the crane cart, and therefore the crane cart is braked.
With continued reference to fig. 1 and 2, in one embodiment of the present invention, the supporting mechanism 5 includes a guide rail 51, a first support bar 52, a second support bar 53 and a third support bar 54 are embedded in the guide rail 51 from left to right, the height of the second support bar 53 is higher than that of the first support bar 52, the height of the third support bar 54 is higher than that of the second support bar 53, a plurality of first threaded holes 55 are formed in the front surface of the guide rail 51, second threaded holes (not shown) corresponding to the first threaded holes 55 are formed in the lower ends of the first support rod 52, the second support rod 53 and the third support rod 54, the speed reduction infrared limit switch 2 is arranged at the upper end of the left side surface of the first support rod 52, the limit infrared switch 3 is arranged at the upper end of the left side surface of the second support rod 53, the wheel braking infrared limit switch 4 is arranged at the upper end of the left side surface of the third supporting rod 54. The first support rod 52, the second support rod 53 and the third support rod 54 can move left and right in the guide rail 51, left and right adjustment is carried out, when the first support rod 52, the second support rod 53 and the third support rod 54 are adjusted to proper positions, the first support rod 52, the second support rod 53 and the third support rod 54 can be fixed on the guide rail 51 through the first threaded hole 55 and the second threaded hole of the bolt screw, the speed reduction infrared limit switch 2 is installed on the first support rod 52, the limit infrared switch 3 is installed on the second support rod 53, the wheel braking infrared limit switch 4 is installed on the third support rod 54, and distance detection is convenient for a crane.
Referring to fig. 1 and 2, in an embodiment of the present invention, a U-shaped plate 56 for limiting a wire is connected to a lower end of a rear surface of the guide rail 51, and a plurality of limiting blocks 57 for limiting the wire in the U-shaped plate 56 are equidistantly disposed on an upper surface of the U-shaped plate 56. So that through the action of the limiting block 57, when the wire can be in the U-shaped plate 56, the wire cannot be separated from the U-shaped plate 56 due to the action of the limiting block 57, so that the wire can be better limited in the U-shaped plate 56.
With reference to fig. 2, 5 and 6, in an embodiment of the present invention, the clamping mechanism 11 for locking the crane cart wheel by the wheel-side brake 1 is disposed on the lower surface of the crane end beam, the clamping mechanism 11 includes an electric telescopic cylinder 12, a frame 13 is disposed on the lower surface of the crane end beam, the frame 13 is disposed on the right side of the electric telescopic cylinder 12, a first connecting rod 14 and a second connecting rod 15 are hinged to the end of the electric telescopic cylinder 12, the first connecting rod 14 and the second connecting rod 15 are disposed up and down, a first clamping rod 16 for clamping the crane wheel is hinged to the end of the first connecting rod 14, a second clamping rod 17 for matching with the first clamping rod 16 is hinged to the end of the second connecting rod 15, and the first clamping rod 16 and the second clamping rod 17 pass through the frame 13 and extend to the front and rear sides of the crane cart wheel rim, the middle parts of the first clamping rod 16 and the second clamping rod 17 are hinged in the frame 13. Make when infrared limit switch 4 received signal at the wheel braking gives MCU with signal transmission, MCU will received signal transmission to wheel limit stopper 1, wheel limit stopper 1 opens electronic flexible cylinder 12, electronic flexible cylinder 12 stretches out to the right, thereby drive head rod 12 and second connecting rod 13 and remove right, head rod 12 and second connecting rod 13 remove right and can drive first clamp rod 14 and the terminal inside clamp of second clamp rod 15 and press from both sides tightly on crane cart wheel rim, make and press from both sides crane cart wheel rim tightly at the effect of first clamp rod 14 and second clamp rod 15, thereby realize the braking of crane cart.
The hinge arrangements of the present invention are well known in the art and will not be described in detail herein, as will be apparent to those skilled in the art.
Referring to fig. 5 and 6, in an embodiment of the present invention, the inner sides of the ends of the first clamping bar 16 and the second clamping bar 17 are disposed on a silica gel block 18. When the first clamping rod 16 and the second clamping rod 17 clamp the wheel rim of the crane cart wheel, friction can be increased through the action of the silica gel block 18, and the crane cart wheel can be better braked and stopped.
As shown in fig. 2, when the present invention is used, a reflective plate 7 is installed on the end of another crane or rail, so that the deceleration infrared limit switch 2, the limit infrared switch 3 and the wheel brake infrared limit switch 4 can receive the signal reflected by the reflective plate 7, thereby stopping the crane cart.
The method for realizing the crane cart anti-collision braking system comprises the following steps:
step S1, when in use, a reflector is arranged at the end part of another crane or track;
step S2, the first support rod, the second support rod and the third support rod are sequentially arranged on the guide rail from left to right under the action of the first threaded hole and the second threaded hole of the bolt screw;
step S3, installing the speed reduction infrared limit switch at the upper end of the left side surface of the first support rod, installing the limit infrared switch at the upper end of the left side surface of the second support rod, and installing the wheel brake infrared limit switch at the upper end of the left side surface of the third support rod;
s4, when the crane gradually approaches to the end of another crane or track, the deceleration infrared limit switch firstly feeds back a signal returned by the reflector, the signal is transmitted to a control system of the crane cart through the wireless communication module, the control system of the crane cart gives a deceleration signal to the cart motor, and the cart motor starts to decelerate; along with the approach of the distance of the reflector, the limit infrared switch feeds back a signal returned by the reflector, a stop signal is given to a cart motor, the cart motor stops, a cart brake signal is given to a cart brake, and the cart brake is braked;
and S5, when the distance is continuously close, the wheel braking infrared limit switch feeds back a signal, the wheel braking infrared limit switch transmits the signal to the MCU, the MCU starts the wheel brake, the wheel brake works, the electric telescopic cylinder moves rightwards to drive the first clamping rod and the second clamping rod to lock the wheels of the crane cart, and therefore the crane cart is braked. Make when infrared limit switch 4 received signal at the wheel braking gives MCU with signal transmission, MCU will received signal transmission to wheel limit stopper 1, wheel limit stopper 1 opens electronic flexible cylinder 12, electronic flexible cylinder 12 stretches out to the right, thereby drive head rod 12 and second connecting rod 13 and remove right, head rod 12 and second connecting rod 13 remove right and can drive first clamp rod 14 and the terminal inside clamp of second clamp rod 15 and press from both sides tightly on crane cart wheel rim, make the effect at first clamp rod 14 and second clamp rod 15 press from both sides crane cart wheel rim tightly, with crane cart wheel rim locking, thereby realize the braking of crane cart and stop.
The MCU, the wireless communication module, the deceleration infrared limit switch, the electric telescopic cylinder, the limit infrared switch, the wheel brake infrared limit switch and the wheel brake are all the prior art, and a person skilled in the art can clearly understand that the MCU can be STM32F103 in model, the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch can be QZHX-A in model, the wheel brake can be a wheel brake of YLBz25-160 in model, the wheel brake is controlled by an electromagnetic valve, an action switch is further arranged and can be used for interlocking with a cart running mechanism, and the wireless communication module can be NRF24LE1 in model, but is not limited to the above.
It should be noted that, referring to fig. 4, the invention also provides a working principle diagram of the crane cart anti-collision braking system, and the working principle steps are as follows:
s10, when the crane receives a signal returned by the reflecting plate fed back by the deceleration infrared limit switch for the first time, and the speed of the cart is detected by the cart speed measuring device to be more than 85% of the maximum speed, the cart anti-collision braking system of the crane gives a signal to a relay B in the cart control system of the crane at the moment, so that the crane cart is braked in a reverse connection mode, and the crane cart has a good braking effect and can quickly reduce the speed of the crane cart at the moment;
s20, when the crane receives a signal returned by the reflecting plate fed back by the deceleration infrared limit switch for the second time, and the speed of the cart is detected to be 50% -85% of the maximum speed by the cart speed detection device, the cart anti-collision braking system of the crane sends signals to a relay C and a relay A in a cart control system of the crane at the moment, a cart motor is powered off, direct current is connected for energy consumption braking, and the cart braking effect is good, so that the cart speed can be reduced quickly;
s30, when the crane receives a signal returned by the reflecting plate fed back by the deceleration infrared limit switch for the third time and the speed of the cart is detected to be below 50% of the maximum speed by the cart speed measuring device, the crane cart anti-collision braking system sends a signal to a relay A in a crane cart control system at the moment, a cart motor is powered off, and the cart speed is gradually reduced;
s40, when the crane receives a signal returned by a limit infrared switch feedback reflection plate for the first time, and simultaneously a cart speed measuring device detects that the cart speed is more than 70% of the maximum speed, a crane cart anti-collision braking system gives a relay A signal in a crane cart control system, a cart motor loses power, gives a relay B signal in the crane cart control system, brakes the cart motor with energy consumption, gives a relay D signal in the crane cart control system, a cart brake loses power for braking, and the crane cart anti-collision braking system gives a relay E signal in the crane cart control system, a wheel brake loses power, and participates in emergency braking;
s50, when the crane receives a signal returned by the limit infrared switch feedback reflector for the second time, and the cart speed measuring device detects that the cart speed is between 40-70% of the maximum speed, the crane cart anti-collision braking system gives a signal to a relay A, a cart motor loses power, a relay B signal in the crane cart control system is given, a cart motor consumes energy for braking, a relay D signal in the crane cart control system is given, and a cart brake loses power for braking;
s60, when the crane receives a signal returned by the limit infrared switch feedback reflector for the third time, and the speed of the cart is detected to be below 40% of the maximum speed by the cart speed detector, the cart anti-collision braking system of the crane gives a signal to a relay A in the cart control system of the crane, the cart motor is powered off, a signal to a relay D in the cart control system of the crane is given, and the cart brake is powered off for braking;
step S70, when the crane receives a signal returned by the wheel edge brake infrared switch feedback reflection plate, the crane cart anti-collision brake system gives a signal to a relay E in the crane cart control system, and the wheel edge brake is powered off and finally brakes;
and step S80, a change-over switch is arranged on the crane cart, signals of the deceleration infrared limit switch, the limit infrared switch and the wheel edge brake infrared switch can be cut off, and another crane is pushed to a non-working area by the crane when needed.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a braking system is prevented bumping by crane cart, includes wheel limit stopper, the infrared limit switch of speed reduction, limit infrared switch and the infrared limit switch of wheel braking, its characterized in that: the crane is characterized in that a supporting mechanism is arranged on the upper surface of an end beam of the crane, the deceleration infrared limit switch, the limit infrared switch and the wheel brake infrared limit switch are sequentially installed on the supporting mechanism from left to right, the installation height of the deceleration infrared limit switch is smaller than that of the limit infrared switch, and the installation height of the limit infrared switch is smaller than that of the wheel brake infrared limit switch; the utility model discloses a wheel limit brake of crane cart, including supporting mechanism, wheel limit brake, wheel brake, wireless communication module, wheel limit switch, limiting infrared switch, wheel brake, wheel limit switch, wireless communication module, wheel limit brake, wireless communication module, the supporting mechanism right side is provided with the control box, be provided with the circuit board in the control box, be provided with MCU on the circuit board, MCU is connected with wheel limit brake, the infrared limit switch of speed reduction, limiting infrared switch and wheel brake, just wheel limit brake, the infrared limit switch of speed reduction, limiting infrared switch and wheel brake through the wire effect with the control box is connected, the control box is through the wireless communication module with the control system wireless communication of crane cart.
2. The anti-collision brake system for crane cart according to claim 1, wherein: the support mechanism comprises a guide rail, a first support rod, a second support rod and a third support rod are embedded in the guide rail from left to right, the height of the second support rod is higher than that of the first support rod, the height of the third support rod is higher than that of the second support rod, a plurality of first threaded holes are formed in the front face of the guide rail, second threaded holes corresponding to the first threaded holes are formed in the lower ends of the first support rod, the second support rod and the third support rod, the speed reduction infrared limit switch is installed at the upper end of the left side face of the first support rod, the limit infrared switch is installed at the upper end of the left side face of the second support rod, and the wheel braking infrared limit switch is installed at the upper end of the left side face of the third support rod.
3. The anti-collision brake system for crane cart according to claim 2, wherein: the guide rail rear surface lower extreme is connected with the U-shaped board that is used for spacing wire, U-shaped board upper surface equidistance is provided with a plurality of being used for with the wire spacing the stopper in the U-shaped board.
4. The crash-proof brake system for crane cart according to claim 3, wherein: the clamping mechanism for locking the wheels of the crane cart by the wheel side brake is arranged on the lower surface of the end beam of the crane, and the clamping mechanism comprises an electric telescopic cylinder, the lower surface of the end beam of the crane cart is provided with a frame, the frame is arranged on the right side of the electric telescopic cylinder, the tail end of the electric telescopic cylinder is hinged with a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged up and down, the tail end of the first connecting rod is hinged with a first clamping rod for clamping a crane wheel, the tail end of the second connecting rod is hinged with a second clamping rod matched with the first clamping rod, and the first clamping rod and the second clamping rod penetrate through the frame and extend to the front side and the rear side of the wheel rim of the crane cart, and the middle parts of the first clamping rod and the second clamping rod are hinged in the frame.
5. A method for implementing a crash-proof brake system for a crane cart according to claim 4, comprising the steps of:
step S1, when in use, a reflector is arranged at the end part of another crane or track;
step S2, the first support rod, the second support rod and the third support rod are sequentially arranged on the guide rail from left to right under the action of the first threaded hole and the second threaded hole of the bolt screw;
step S3, installing the speed reduction infrared limit switch at the upper end of the left side surface of the first support rod, installing the limit infrared switch at the upper end of the left side surface of the second support rod, and installing the wheel brake infrared limit switch at the upper end of the left side surface of the third support rod;
s4, when the crane gradually approaches to the end of another crane or track, the deceleration infrared limit switch firstly feeds back a signal returned by the reflector, the signal is transmitted to a control system of the crane cart through the wireless communication module, the control system of the crane cart gives a deceleration signal to the cart motor, and the cart motor starts to decelerate; along with the approach of the distance of the reflector, the limit infrared switch feeds back a signal returned by the reflector, a stop signal is given to a cart motor, the cart motor stops, a cart brake signal is given to a cart brake, and the cart brake is braked;
and S5, when the distance is continuously close, the wheel braking infrared limit switch feeds back a signal, the wheel braking infrared limit switch transmits the signal to the MCU, the MCU starts the wheel brake, the wheel brake works, the electric telescopic cylinder moves rightwards to drive the first clamping rod and the second clamping rod to lock the wheels of the crane cart, and therefore the crane cart is braked.
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