GB2572052A

GB2572052A - Emergency brake mechanism of suspended conveying system for vehicle production lines

Info

Publication number: GB2572052A
Application number: GB1901331.7A
Authority: GB
Inventors: Lai Jinyuan
Original assignee: Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd
Current assignee: Sichuan Xingzhi Zhihui Intellectual Property Operation Co Ltd
Priority date: 2018-01-31
Filing date: 2019-01-31
Publication date: 2019-09-18
Anticipated expiration: 2039-01-31
Also published as: WO2019148364A1; CN109720785B; GB201901331D0; GB2572052B; CN109720785A

Abstract

An emergency brake system of a suspended / overhead conveying system that will allow for immediate stoppage and comprises a suspended column 3 fixed on a bottom surface of a conveying system frame and a placement board 9 fixed on a lower end of column 3. Placement board 9 has a spring 18 and limit tube 10. A hydraulic cylinder 1, with an oil pump 2, is fixed to spring 18 and oil pump 2 is electrically connected to a controller on the frame. Oil ports 4, 5 are dispose don hydraulic cylinder 1. A grooved deceleration frame 11 is fixed on a moving end of a second piston rod 8 and a pawl 12 facing a sleeve 17 is positioned inside the groove and connected by a spring(s) 13. An emergency brake lever 14 passes through limit tube 10 and is located between two interceptor bars 19 which are contactable with a block buffer 15.

Description

FIELD OF THE INVENTION [0001] The present invention relates to the field of vehicle manufacturing machinery.

more particularly to an emergency brake mechanism of a suspended conveying system or vehicle production lines.

BACKGROUND OF THE INVENTION [0002] A suspended conveyor is also called overhead, conveyor, and is used inside the workshop and between the workshops for the continuous conveying flow of the work nieces

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During the process of the continuous conveying flow, various sequential process operations on the work pieces, such as surface treatment, painting, drying products off-line, etc., can be performed. Because it can fully utilize, the space and cooperate with the ground operations, it is widely applied in the modern manufacturing Lines of the vehicle [0003] The traditional suspended rail conveying system comprises an overhead rail, etc., wherein the suspended conveyance vehicle.

comprises rollers, axles, drive system, braking system, suspensions, etc. The suspended conveyance vehicles are controlled by the background control system, therefore when the background control system fails and cannot control one of the suspended .he speed of the said suspended conveyance the other suspended conveyance vehicles, if ne suspended conveyance vehicles will collide with each other, causing the damage of the suspended conveyance vehicles, the collision or even the fall and damage of the suspended work pieces, and the increasing of the process cost; Furthermore, when an emergency stop for a specific suspended conveyance vehicle is required, the brake i

system cannot stop the suspended conveyance vehicle immediately and can only adop’ the deceleration method, and such deceleration sliding will also inevitably bring the ' -J o collision of the adjacent, suspended conveyance vehicle.

BRIEF SUMMARY OF THE INVENTION [0004] The present invention provides an emergency brake mechanism for a suspended conveying system of vehicle production lines, aiming to solve the problems that when the control system fail·.., the traditional suspended rail conveyor cannot decelerate and cannot immediately reduce the speed to zero when emergency deceleration is required.

[0005] The present invention is realized by following [0006} An emergency brake mechanism of a suspended conveying system for vehicle of the suspended conveying system, a placement board is fixed on a lower end of the suspended column, a first spring wherein, a hydraulic cylinder is fixedly connected to the first spring, an oil pump is the controller on the frame, a first oil port and a second oil port are disposed on the conveying system, the oil pump is connected with the first oil port port through oil pipes, the first oil port and the second oil port is connected with an d of the piston, a movable end of the first piston rod movably passes through one end of the hydraulic cylinder near the. front axle, a deceleration frame is fixed on the movable end of the second piston rod, a groove is provided on a side of the groove, the deceleration pawl faces a deceleration sleeve sleeving on the front axle, the ''J deceleration sleeve is made of rubber, a side of the deceleration pawl facing the. ironaxle is a concave surface, a size thereof matches a size of the deceleration sleeve, an upper surface of the deceleration pawl is connected to an upper surface of the groove to a lower surface of the groove by the plurality of the second springs, and a side, of the deceleration oawi near the second piston rod contacts the groove: a movable end of the

Λ. Ji. V-¹ the front axle; a first through hole is disposed on a side of the limit lube, the movable emergency brake lever is also comprised, a notch is disposed on a side of the emergency brake lev notch, and the lower end of the emergency brake lever passes through a top of the limit tube and enters an interior of the limit tube; when the first piston rod is inside the limit tube, the emergency lever is placed on the first piston rod, a second through hole is a>‘ placement board, when the first, piston rod is outside the limit, tube, the lower end of the emergency brake lever passes sequentially through the second through hole and the third through hole, and is finally located between any two interceptor bars disposed on and a’ and cannot control the suspended conveyors, the speed of the suspended conveyors be different from each other, and the suspended conveyors may collide with each other, causing the damage of the suspended •onveyors, the collision or even and damage of the suspended work pieces, the increasing of the process cost, suspended conveyor is required, the brake system cannot stop the suspended conveyor immediately and can only adopt the deceleration method, and such deceleration sliding will also inevitably bring the collision of the adjacent suspended conveyor.

[0008] To solve the above problems, the present, invention provides an emergency brake mechanism of a suspended conveying system for vehicle production lines.

[0OO9] The principle and operation of the emergency brake mechanism is that, in the normal situation, the movable end of the first piston rod is disposed in the limit tube of the first piston rod inside the limit tube; when an emergency stop for a specific e «» Λ*/·ί into L'vuuvm

Λ conveyor is required, the emergency control system is used io send an emergency brake signal to

Sy rο+.'ΛΐΎ> 'li V !.VX i > »Al the front end of the frame, when the time difference between the infrared lower than the presetting value of the infrared distance meter, the latter will send an port and the oil discharge through the second oil port, to make the piston to move piston rod engages with the deceleration sleeve, which is fixed on the front axle by welding, inserting, etc., and because of no relative movement with the front axle, when .he deceleration uawl engages with the deceleration sleeve, the rotation soeed of the

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front axle is significantly reduced, preferably, components such as bumps that increase friction are provided on the surfaces of the deceleration sleeve and the deceleration pawl to further improve the deceleration effect; at the same time when the speed of the front axle is reduced, the movable end of the first piston rod leaves the limit tube, an the emergency brake lever without. the support, sequentially passes through the second and the third through hole and falls between the two interceptor bars disposed on the rail or on the interceptor bar. During the period before the buffer block suspended conveyor decelerates by the engagement of the deceleration pawl and the deceleration sleeve, to prevent the large impulse causing the suspended conveyer the side of the interceptor bars. After the buffer block of the emergency brake lever contacts with the side of die interceptor bars, because the upper end of the emerge aergency y brake lever, the limit tube interceptor bars limit the movement of the placement board together, thereby ί·ίΛ/ί { ir Z”k£S<' ! C-uUv VA to zero rapidly. At this time, even though the motor is still driving the back sixle it.' rotate, the suspended conveyor cannot be driven to move forward, which radically prevents the suspended conveyor from colliding and work pieces from falling. After all liminated, the emergency brake lever is lifted and the oil is supplied through away from the front axle, and finally the first piston rod is located inside the limit tube.

The emergency brake lever is then lowered to be positioned on the first piston rod and ‘S' the system operation is resumed.

gears is disposed on the deceleration sleeve, and the plurality of the deceleration gear is made of metal materials: the plurality of the deceleration gears are disposed along a r· circumferential direction of the deceleration sleeve and a cross section of each of the plurality of the deceleration gears is isosceles trapezoid; a rubber bearing is disposed i plurality of deceleration grooves deceleration grooves matches a size of each of the plurality of the deceleration gears.

engagement of the deceleration sleeve and deceleration pawl to rapidly reduce the speed of the front axle and further improve the deceleration effect; moreover, because the rubber bearing has a certain deformation ability and the deceleration gear has a deceleration gear have a certain meshing ability, a rigid collision will not happen with the deceleration groove to cause the deceleration gear and the deceleration groove to urolongine the service life of the mechanism. A C? <C?

[001.1] Furthermore, the first spring is a tension spring.

[0012] Furthermore, the buffer block is made of rubber.

Compared to the prior art, the present invention has the following advantages and beneficial effects.

invention can control the oil pump, thereby controlling the deceleration pawl to engage with the deceleration sleeve on the first axle to reduce the movement speed of the suspended conveyance vehicle. Then by the free fall of the emergency brake lever, the rail to rapidly reduce the speed of the suspended conveyor to 0. Even though the motor or war a, which radically prevents the suspended conveyor from colliding and work pieces from t < c

Alt deceleration process is more stable and is not like the traditional brake system which cannot rapidly reduce the speed to zero, and a sudden happen to cause the suspended conveyor to violently shake.

[0015] 2. The present, invention disposes deceleration pawl m the groove of the deceleration pawl is connected with the upper and lower surfaces of the groove through the second spring. When the deceleration pawl begins to contact with the deceleration with the deceleration groove, the solution can relieve the stress of the second piston rod through the vertical movemen of the deceleration pawl inside the deceleration frame and avoid the shake of the second niston rod bv the upward or downward force, thereby avoiding the shake of the

i. .✓ r y second piston rod and improving die reliability and stability of the device.

[0016] 3. When the emergency brake lever collides on the interception bars and during the engagement process of the deceleration gear and deceleration groove, the local piston rod to break from the junction. The present Invention installs a plurality tension springs at the bottom of the hydraulic cylinder, so that the hydraulic cylinder generates junction and effectively protects the second piston rod.

the present invention has been specially designed

The bottom part is the deceleration gear connecting with the metal material rigidity and

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I ;e with the deceleration groove to a certain extent The top pan is thickness, which not only avoids the wear of the deceleration gear or the deceleration groove caused bv the groove, imoroving the service life of the mechanism, but also has a certain deformation ability, making the engagement of the deceleration pawl and deceleration sleeve easier.

BRIEF DESCRIPTION OF THE DRAWINGS .18] The drawings described herein, are intended to provide a further understanding 'I of the embodiments of the present invention and form a part of the application, but nor intended to constitute a limitation of the embodiments of the present invention. In the drawings:

[00.19] FIG. 1 is a schematic view of the present invention under normal situation;

[0020] FIG. 2 is a schematic view of the present invention under the emergency brake situation;

[0921] FIG3 is a schematie view of the deceleration gear of the present invention;

[0022] Annotations in the drawings and the names of the corresponding parts are:

[0023] 1-hydraulic cylinder, 2-oil pump, 3-suspended column, 4-first oil port, 5-second oil pump, 6-pist.on, 7-first piston rod. 8-second piston rod, 9-placement board, 10-limit tube, 11 -deceleration frame, 12--deceleration gear, 13-second springs, id-emergency brake lever, 15-buffer block, 16-front axle, 17-deceleration sleeve, 18-first spring, 19-interceptor bars, 20-deceleration gears, 21 -rubber bearing.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0024] In order to clarify the purpose, solution and advantages for the present invention, with reference to the accompanying embodiments and drawings, the present invention is further described in detail, the embodiments and the illustrations thereof is merely illustrative of the invention and are not intended to limit the invention.

[0025] Embodiment 1 [0026] As shown in Fig. 1 to Fig. 2, the present invention discloses An emergency brake mechanism of a suspended conveying system for vehicle production lines, wherein a suspended column 3 is fixed on a bottom surface of a frame of the suspended conveying system, a placement board 9 is fixed on a lower end of the suspended column 3, a first spring 18 and a limit tube 10 are disposed on. the placement board 9, wherein, a hydraulic cylinder 1 is fixedly connected to the first spring 18, an oil pump 2 is fixed on a surface of the hydraulic cylinder 1., the oil pump 2 is electrically connected with the controller on the frame, a first oil port 4 and a second ίΛ front axle 16 of the suspended conveying system, the oil pump 2 is connected with the second oil port 5 is connected with an interior of the hydraulic cylinder 1, a piston 6 is of the piston 6, a first piston rod 7 is on another end of the piston 6, a movable end of the first piston rod 8 movably passes through one end of the hydraulic cylinder I nea;

the front axle 16, a deceleration frame 11 is fixed on the movable end of die second pawl 12 faces a deceleration sleeve 17 sleeving on the. front axle 16, the deceleration sleeve 17 is made of rubber, a side of the deceleration pawl 12 facing the front axle 16 s a concave surface, a size thereof matches a size, of the deceleration sleeve 17, an groove by a plurality of second springs 13, a lower surface of the deceleration pawl 12 is connected to a lower surface of the groove by the plurality of the second springs .13, and a side of the deceleration pawl 12 near the second piston rod 8 contacts the groove;

a movable end o the first piston rod 7 movably passes through one end of the hydraulic cylinder 1 away from the front axle 16: a first through hole is disposed on a side of the limit tube 10, the movable end of the first piston rod 7 can pass through the first through bote into the limit tube 10, an emergency brake lever 14 is also comprised.

a notch is disposed on a side of the emergency brake lever 14 near a lower end thereof, a outter block brake lever 14 passes through a top of the limit tube 10 and. enters an interior of the limit tube 10 when the first piston rod 7 is inside the limit tube 10, the emergency ever 14 is placed on the first piston rod 7, a second through hole is disposed or bottom of the limit tube 10, a third through hole is disposed on the placement board 9, when the first piston rod 7 is outside the limit tube 10, the lower end of the emergency brake lever 14 passes sequentially through the second through hole and the third through hole, and is finally located between any two interceptor bars 19 disposed on rails, and the block buffer 15 contacts with a side of the interceptor bars 19. The first spring 18 is a tension spring. The buffer block 15 is made of rubber.

conveyor frame by the suspended column 3, and the lower end thereof fixes the the first oil port 4 and second oil port 5. By and discharging oil through the second oil port

5, or discharging oil through the first oil port 4 and supplying oil through the second oil port 5, the oil pump 2 pushes the piston 6 to move inside the hydraulic cylinder I, thereby pushing the first piston rod 7 and the second piston rod 8 to move. Wherein the oil pump 2 is electrically connected to the controller, and the control system of the oil pump is different from the one of the drive system, that is when the control system of the drive system fails, the oil pump 2 can still be controlled to push the piston 6, the deceleration pawl 12 disposed on the second piston rod 8 can contact the deceleration

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sleeve 17 during the. emergency braking for the purpose of the initial deceleration. The second springs are able to allow the deceleration paw to move in the deceleration to swing adaptively to protect the second piston rod 8; the moveable end of the first falling into the second through hole and the third through hole, and falling between the two interceptor bars 19 to further cause the emergency brake.

[0028] When an emergency stop for a specific suspended conveyor is required, the emerge cy control system is used to send an emergency brake signal to the controller and in some of the embodiments, an infrared distance meter is disposed on the front end of and receiving infrared ray is lower than the presetting value of the infrared distance meter, the latter will send an. emergency brake signal to the controller; after receiving the emergency brake signal, the controller will turn on the oil pump 2 to control the oil make the piston 6 to move towards the front axle 16. After that, the deceleration pawl on movable end of the second piston rod 7 engages with the deceleration sleeve 17 which is fixed on the front axle by welding, inserting, etc., and because of no relative movement with the front axle 16, when the deceleration pawl 12 engages with th deceleration sleeve 17, the rotation speed of the front axle 16 is significantly reduced;

first piston rod 7 leaves the limit tube 10, and the emergency brake lever 14 without the support sequentially passes through the second through hole and th.

thir through hole.

bar. During the period before the buffer block 15 of the emergency brake lever 14 contacts with the side of the interceptor bars 19, the suspended conveyor decelerates by the combination of the deceleration pawl 12 and the deceleration sleeve 17 to avoid the large impulse which may cause die suspended conveyor to shake and the work pieces to fall after the collision of the emergency brake lever 14 with the side of the interceptor bars .19. After the buffer block 15 of the emergency brake lever 14 contacts with the side of the interceptor bars .19, because the upper end of the emergency brake limit tube 10 and the interceptor bars 19 limit, the movement of the placement board, thereby restricting the movement of the whole suspended conveyor, the speed thereof reduces to zero rapidly. At this time, even, though the motor is still driving the back axle to rotate, the suspended conveyor cannot be driven to move forward, which radically prevents the suspended conveyor from colliding and work pieces from failing and improves the safety of the work pieces transportation [0029] After all faults are eliminated, the emergency brake lever 14 is lifted and the oil the first oil port then the piston 6 moves away from the from axle 16, and finally the located inside the limit tube 10. The emergency brake lever 14 is then lowered to be positioned on the first piston rod 7 and the system operation is resumed.

Fie. 1 to Fig. 3. based on the embodiment 1, the structures of the

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slee deceleraii on gea are disposed along a circumferential direction of the deceleration sleeve 1 /

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A rubber bearing 21 is disposed on each of the plurality of the deceleration, gears 20. A to· each of the plurality of the deceleration grooves matches a size of each of the plurality of the deceleration gears 20, era [0032] A plurality of deceleration, gears 20 with the isosceles trapezoid cross section are disposed along the circumferential direction of the deceleration sleeve 17, and the of medal material and have a certain rigidity. The concave gear 12 facing the deceleration sleeve 17 iP kj axle 16 and the deceleration sleeve 1 7 is relatively fixed. In some embodiments, the ”7 cross section of the concave surface is semicircular and the concave surface is provided deceleration gear 20 with rubber bearing 21, meaning that the cross section of the deceleration groove is also isosceles trapezoid. Such design makes the deceleration pawl 12 quickly engage with the deceleration sleeve 17 to rapidly reduce the rotation protect the deceleration gear 20 and the deceleration groove from being worn.

.chnical solutions and beneficial effects of the present, invention. It is to be understood that the foregoing is only illustrative of the embodiments of the present invention, and is not. intended to limit the scope of the present invention. Any modifications, equivalents, and improvements made within the spirit and scope of the present

Claims

1, An emergency brake mechanism of a suspended conveying system for vehicle

WHAT IS CLAIMED IS:

production lines, characterized in that, a suspended column (3) is fixed on a bottom surface of a frame of the suspended conveying system, a placement boar .1 (9) is (10) ate disposed on the placement board (9), wherein, a hydraulic cylinder (1) is fixedly connected to the first spring (18), an oil pump (2) is fixed on a surface of the tydraulic cylinder Cl), the oil pump (2) is electrically connected with the controll· suspended conveying system, the oil pump (2) is connected with the first oil port (4) .nd the second oil port (5) through oil pipes, the first oil port (4) and the second oil port (5) is connected with an interior of the hydraulic cylinder (1). a piston (6) is disposed inside the hydraulic cylinder ( I), a second piston rod (8) is disposed on one end of the piston (6), a first niston rod (7) is on another end of the piston (6), a one end of the (Hi is fixed on the movable end of the second piston rod (8), a groove is provided on a side of the deceleration frame ill) facina the front axle (16), a deceleration pawl (12) is

A ' <-' \ / ’ X X provided inside the groove, the deceleration pawl (1.2) faces a deceleration sleeve (173 sleeving on the front axle (16), the deceleration sleeve (17) is made of rubber, a side of the deceleration pawl (12) facing the front axle (16) is a concave surface, a thereof matches a size of the deceleration sleeve (1 /), an upper surface o.t the deceleration pawl (12) is connected to an upper surface of the groove by a plurality a lower surface of the groove by the plurality of the second springs (13), and a side of the deceleration pawl (12) near the second piston rod (8) contacts the groove; a movable end of the first piston rod (/) mo v ably passes through one end of th<

hydraulic cylinder (1) away from the front axle (16): a first through hole is disposed v-a.

block ()5) is disposed inside the notch, and the ower end of the emergency brake ever (14) passes through a top of the limit tube limit tube (10): when the first, piston rod (7) is inside the limit tube (10), the emergency lever (14) is placed on the first piston rod (/), a second through hole is disposed on a bottom of the limit tube (10), a third through hole is disposed on the placement board (9), when the first piston rod (7) is outside the limit tube (10), the lower end of the emergency brake lever (14) piasses finally located between any two interceptor bars (19) disposed on rails, and the block buffer (15) contacts with a side of the interceptor bars (19).

2. The emergency brake mechanism of the suspended conveying system for the vehicle production lines according to claim .1, characterized in that, a plurality of the deceleration gears (20} is disposed on the deceleration sleeve (17), and the plurality of the deceleration gear (20) is made of metal materials.

.·% .5.

The emergency brake mechanism of the suspended conveying system for the vehicle deceleration of the

4.

deceleration of the gears (20) is isosceles trapezoid

The emergency brake mechanism of the suspended conveying system for the vehicle

5. The emergency brake mechanism of the suspended conveying system for the vehicle production lines according to claim 2, characterized in that, a plurality of deceleration grooves are disposed on the concave surface, and a size of each of the t he emergency brake mechanism of the suspended conveying system for the vehicle production lines according to claim 1, characterized in that, the first spring (18) is a tension spring.

......

The emergency brake mechanism of the suspended conveying system for the vehicle production lines according io claim 1, characterized in that, the buffer block (15) is )6