KR100423731B1 - The Lift for Lower Part Work of Train Carriage - Google Patents

Abstract

PURPOSE: A lift for working under a train is provided to effectively work and shorten working time by making operators work in a sufficient working space under the train and to secure the safety of the operators by stopping height-adjusting operations if the operators are detected at a specific place in adjusting the height of the train. CONSTITUTION: A lift for working under a train comprises two supporting bars(10) mounted to set up wider than the width of the train to easily work under the train and composed of supports(12) disposed at the lower ends and guide bars(11) formed at both sides; a cylinder(30) installed to the bottom face in the supporting bar; a trolley(20) for moving up and down in the supporting bar by movements of the cylinder; and a supporting beam(40) of which both ends are connected to the trolleys of both supporting bars, moving up and down together with the trolley and lifting the train.

Description

The Lift for Lower Part Work of Train Carriage

The present invention relates to a lower work lift of a train vehicle, and more particularly, a lower work lift of a train vehicle capable of increasing safety and work efficiency of a work by raising a train vehicle so that a sufficient working space is formed during a lower work of a train vehicle. To provide.

1A and 1B are front and side views illustrating a lift operation of a conventional train vehicle, the lift 101 being configured to lift the train vehicle T on the chief-type hoist 100; A fastener 102 coupled to both lower sides of the lift 101 for fixing the train vehicle T so that the train vehicle T is not shaken when the train vehicle T enters into the lift 101; Lifting the train vehicle (T) to the lift 101 and then moved to the work place to support the train vehicle (T) when laying down the train vehicle (T) again; is made of;

As such, in the related art, the train train 1 is moved from the maintenance window of the train, and the train vehicle T is lifted from both sides using the chairman-type hoist 100 in the commissioner, and then moved to the workshop, so that the supports of the crutch 103 installed on both sides in advance. The train vehicle (T) was put down at the top and the lower work was performed.

At this time, since the support bracket 103 supporting the train vehicle T has a height of only about 900 mm, the worker works in an unstable posture so that the lower work time takes longer and the working position is inconvenient. There was a drawback that it did not go up.

In addition, although the train vehicle T should be fixed at a sufficient height, the height of the train vehicle T, which is a work object, cannot be adjusted by the fixed height of the shoring 103, so that the lower work can be accurately performed. It was very difficult.

In addition, although the size of the crutch 103 may be variously provided, since the weight of the crutch 103 is considerably heavy and the size is also very long, it is also very difficult to provide the crutch 103 of various sizes and at the working height. Accordingly, since the shoring 103 has to be moved and replaced by workers one by one, difficulties arise for this, and the size of the shoring 103 could not be provided in various ways.

The present invention has been made to solve the problems of the prior art, the support is fixed by standing up and wider than the width of the train vehicle, by connecting the middle of both supports to the support beam by the vertical action of the hydraulic cylinder It moves up and down and provides technology to elevate train cars.

As a result, the entire train vehicle under maintenance can be lifted horizontally in the range of 1m 10Cm to 2m 10Cm so that it can be lifted above the height of the person. Therefore, the worker can work in a sufficient working space is less work time and efficient work.

In addition, by installing a sensor to detect a worker in one or a plurality of places to detect the presence or absence of the worker at a specific location, and when the operator is detected when adjusting the height, the height of the train vehicle, it is possible to adjust the height of the train vehicle It is possible to promote the safety of the worker by stopping the operation.

Many of these and accompanying effects of the present invention will be readily understood by the following detailed description taken in conjunction with the accompanying drawings.

Figure 1a, Figure 1b is a lift operation diagram of a conventional train vehicle

Figure 2a, Figure 2b is a lift operation of the present invention train vehicle

Figure 3 is an exploded perspective view showing the configuration of the present invention lift

Figure 4 is a plan view of the main portion showing the configuration of the present invention lift

Figure 5 is a sectional view showing the main portion showing the support means coupled to the present invention support

Figure 6a, Figure 6b is an operating state diagram showing the locking means of the present invention lift

Figure 7 is a hydraulic circuit diagram of the present invention lift

<< Explanation of main parts of drawing >>

10-Support 20-Balance

30-cylinder 40-support beam

50-Locking means 60-Supporting means

The present invention relates to a lower work lift of a train vehicle.

Technical configuration of the present invention in the lower work lift of the train vehicle, in order to facilitate the lower work of the train vehicle is installed wider than the interval of the train vehicle and provided with a pedestal at the bottom of the "c" shape on both sides Two supports provided with guides; A cylinder installed on an inner bottom of the support; A bogie moving up and down inside the support by the operation of the cylinder; Both ends are connected to the bogies of the support and moving up and down with the bogie, the support beam for lifting the train vehicle; characterized in that consisting of.

At this time, the cylinder shaft upper end of the cylinder is fixed to the coupling piece formed on the inner side of the cold wall of the bogie, and a plurality of rollers which are in contact with the inner surface of the guide stand and coupled to both sides of the bogie to facilitate the lifting operation of the bogie. It is preferable to.

In addition, a locking means is further provided to prevent the bogie raised by the cylinder from being arbitrarily lowered, the locking means comprising: a gear portion coupled to both sides of the rear of the bogie; A fixing plate installed at the rear locking hole of the support and fixed to the rotating shaft formed at the center thereof, the rotating shaft being protruded to both sides; A locking member having a “b” shaped locking member fitted to both ends of the rotation shaft by coupling holes, the fixed portions corresponding to the gear portions, and fixed holes formed on opposite sides of the fixed portions; A pressing rod connected to the fixing hole of both locking members; An elastic body having one side fixed to the pressing rod and the other side fixed to the rear of the support to rotate the locking member to the left about the rotation axis to apply a force such that the fixing member of the locking member engages with the gear part; The locking cylinder is provided with a pressing hole for lowering the engagement force of the fixed portion and the gear portion by lowering the locking member to the right rotation about the rotation axis by pressing the pressing rod down to lower the bogie combined with the gear portion.

Further, the support is further provided with a support means coupled to the support to prevent the train from shaking or the load is further applied to the cylinder of one side when the train is lifted on the upper end of the support by the height difference of the bottom of the train. And, the supporting means is made of a "┌┐" shape to correspondingly insert the support beam, the support body provided with protrusions formed with screw holes on both sides; Comprising the screw hole and the support rod having a screw shaft for adjusting the height according to the deviation of the bottom surface of the train vehicle screwed.

At this time, the support beam and the support body is preferably provided with a fastening bolt and nut fastened through the fastening hole formed in the lower portion of the support body so as not to be separated.

In addition, the support, the trolley, and the support beam is further provided with a detection sensor that can selectively detect the worker working at a specific location in one or a plurality of places, the detection sensor detects this if there is an operator at a specific location and It is preferable to transmit the sensed signal to the hydraulic control unit to operate the on / off valve and to stop the movement of the refinery supplied to the cylinder to stop the operation of the leaf.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, Figures 2a and 2b is a front view and a side view showing the working state of the lower work lift of the train vehicle of the present invention. As shown in the figure, the two support stands 10 installed wider than the interval of the train vehicle T are respectively mounted with a pedestal 12 at the lower end thereof, and fixed to the lower part inside the support 10. The trolley 20 which moves up and down by the cylinder 30 is coupled and the support beam 40 which connects the trolley | bogie 20 of the said both support 10 is horizontally installed.

At this time, the trolley 20 is a cylinder shaft 31 of the cylinder 30 is fixed to the coupling piece 26 formed on the upper side of the cold wall 21 can be moved up and down by the cylinder 30, The cylinder 30 may be formed of pneumatic and hydraulic or other types of cylinders, of course, in the present invention will be described by adopting a hydraulic cylinder.

On the other hand, the weight of one train lifted by the lift (1) is usually 14 to 30 tons, the length is usually 20 to 26 meters, so the lift is preferably installed in two sets at the front and rear of the train, In accordance with the weight and length of the train vehicle T, three to four tanks or more may be installed.

Therefore, when the train vehicle T is lifted horizontally above the height of the person by the lift 1 of the present invention, the work space is secured wide and securely, and thus smooth work can be performed, thereby reducing work time and improving work efficiency. Can be.

Figure 3 is an exploded perspective view showing the configuration of the present invention lift, Figure 4 is a main plan view showing the configuration of the present invention lift, Figure 5 is a main sectional view showing the support means coupled to the support of the present invention. As shown in the figure, the front of the support (10) formed on the upper portion of the pedestal 12 is formed with a guide (11) having a "c" shape on both sides, the cylinder 30 is installed in the center thereof, In the trolley 20 moving up and down inside the guide stand 11, a plurality of rollers 22 are in contact with the inner surface of the guide stand 11 and smoothly move up and down the trolley 20. Gear portions 25 are coupled to both rear sides of the trolley 20.

At this time, the support beam 40 is fastened and fixed to both sides of the central portion to the fixing piece 23 coupled to the front of the balance 20, the support piece 24 of the balance 20 to the lower portion of the support beam 40 ) Supports the trolley 20 and the support beam 40 is firmly fixed.

In addition, the sensor 10 is installed at any one or a plurality of places of the support 10, the bogie 20, and the support beam 40 to detect the presence or absence of an operator at a specific position during the operation of the lift (1). It protects worker's safety.

In addition, the locking means 50 that is engaged with the gear portion 25 of the trolley 20 and controls the movement of the trolley 20 is installed on the rear of the support 10, the locking means 50 is a support The fixing plate 54 having the rotating hole 54a is coupled to the locking hole 13 formed in the 10, and the rotating shaft 55 into which the locking member 53 is coupled to both sides is inserted into the rotating hole 54a. In addition, a pressing rod 56 having an elastic body 57 is coupled to the fixing hole 53b of the locking member 53 to connect both locking members 53 and a support on the upper side of the pressing rod 56. Locking cylinder 51 is coupled to the rear of the (10) is installed.

And, the support beam 40 is provided with a support means 60 that can be adjusted according to the height difference of the lower side of the train vehicle (T), the support means 60 is a support body that is installed to surround the support beam 40 A support 61 is formed, and a screw hole 62a is formed in the protruding portion 62 protruding at both sides thereof, and the support on which the screw shaft 64a is formed, which is rotated by screwing the screw hole 62a and adjusting height. Rod 64 is coupled.

At this time, the fastening bolt 65 and the nut 66 are coupled to the fastening hole 63 formed at the bottom of the support body 61 to prevent the support body 61 from being separated from the support beam 40 upward. At this time, the fastening bolt 65 and the nut 66 may be fastened with a fixing pin or the like.

6A and 6B are operating state diagrams showing an operating state of the locking means of the lift of the present invention. As shown in the figure, a locking means 50 engaged with the gear portion 25 of the trolley 20 and controlling the movement of the trolley 20 is installed at the rear of the support 10, wherein the train vehicle ( When the gear unit 25 is raised together with the trolley 20 when the train vehicle T is raised for the lower work of the T), the fixing unit 53c engaged with the gear unit 25 has a lower gear In this case, the locking member 53 has only a force to rotate left by the elastic body 57 coupled to the pressing rod 56, so that the balance does not affect the rise of the balance, and the balance 20 rises. After completion, the gears of the gear part 25 and the fixing part 53c mesh with each other and prevent the bogie 20 from falling.

Then, after the lower work of the train vehicle (T) is completed and the worker moves to a safe place to operate the lift (1) to lower the train vehicle (T), first, the gear portion 25 of the trolley 20 The fixing part 53c of the locking member 53 engaged with the teeth should be disengaged.

That is, the locking cylinder 51 is operated to advance the pressing hole 52 in the downward direction, and the pressing hole 52 which proceeds downward connects the two locking members 53 and the elastic body 57 is coupled. The pressing rod 56 is pressed, and the locking member 53 is rotated to the right about the rotation shaft 55 due to the pressing of the pressing rod 56, thereby disengaging the engagement between the gear portion 25 and the fixing portion 53c. Will be.

Therefore, since the gear part 25 and the fixing part 53c are not engaged, the trolley 20 may be lowered, and when the lowering of the trolley 20 is completed, the locking cylinder 51 is the pusher 52. As a result, the locking member 53 is rotated left by the restoring force of the elastic body 57 and the gear and the fixing part 53c of the gear part 25 are engaged with each other to prevent the cart 20 from falling. Done.

Since the locking means 50 for controlling the lifting of the trolley 20 is coupled as described above, the trolley 20 is caused by an abnormal occurrence of the cylinder 30 during the lower work after raising the train vehicle T. The descent will not cause a serious threat to the safety of workers.

On the other hand, when the locking means 50 is configured without a locking cylinder 51, a person may operate by pressing the pressing rod 56 manually, but the load and support beam 40 of the train vehicle T and other Since the force for pressing the pressing rod 56 by the weight of the components must be very strong, it is preferable to have the locking cylinder 51 as described above.

7 is a hydraulic circuit diagram of the lift of the present invention. As shown in the figure, the cylinder 30 is supplied with the refined oil moved to the flow rate distribution valve 72 by opening and closing the valve 71 of the refinery reservoir 70, each cylinder 30 is prevented from rolling The valve 73 is coupled to prevent backflow of the refinery.

At this time, when the operator is detected at a specific position by the detection sensor 80 during the operation of the lift 1, the detection sensor 80 transmits a signal to the hydraulic control unit 74 and operates the opening and closing valve 71 to the cylinder. By blocking the movement of the refinery oil supplied to the 30, it is possible to protect the safety of the operator during the operation of the lift (1).

In addition, the lift 1 is installed because the cylinder 30 is upright, the support beam can not be lowered below the height of the cylinder 30 can be flexibly coped with the accident that may occur.

On the other hand, the detection sensor 80 may use a variety of types of detection sensor 80 that can detect the presence or absence of the operator at a specific location, such as heat, infrared detection sensor, of course, about 6 to about 12 The installation number of the detection sensor 80 may be further increased or decreased in consideration of the angle and area that the detection sensor 80 can detect.

Within the scope of the technical idea of the present invention, design changes, material changes, dimensions, and the like will all fall within the scope of rights.

Accordingly, according to the present invention, a worker in a sufficient working space to work on the lower portion of the train vehicle can take less time and efficient work.

In addition, if the operator is detected at a specific position when adjusting the height, the height of the train vehicle, it is possible to improve the safety of the worker by stopping the adjustment operation of the height, day of the train vehicle.

Claims (10)

In the lower work lift of a train vehicle, In order to facilitate the lower work of the train vehicle (T) is installed wider than the interval of the train vehicle (T) is installed upright and the base 12 is provided at its lower end and the guide post 11 of the "c" shape on both sides is Two supporters 10 provided; A cylinder 30 installed on an inner bottom of the support 10; A trolley 20 which moves up and down from the inside of the support 10 by the operation of the cylinder 30; Train cars, characterized in that consisting of; both ends of the support 20 is connected to the support 20, the support beam 40 to move up and down with the cart 20, and elevate the train vehicle (T); Lift for lower work. The method of claim 1, Lifting for lower work of the train vehicle, characterized in that the upper end of the cylinder shaft 31 of the cylinder 30 is fixed to the coupling piece 22 formed in the upper end of the cold wall 21 of the trolley 20. The method of claim 1, In order to facilitate the lifting operation of the trolley 20 of the train vehicle further comprises a plurality of rollers 22 in contact with the inner surface of the guide base 11 and coupled to both sides of the trolley 20. Down lift. The method of claim 1, Lifting for lower operation of the train vehicle, characterized in that it further comprises a locking means (50) to prevent the bogie (20) raised by the cylinder (30) to be lowered arbitrarily. The method according to claim 4, The locking means 50 includes a gear portion 25 coupled to both sides of the rear of the trolley 20; A fixing plate 54 which is fixed to the rear locking hole 13 of the support 10 and is coupled to a rotating shaft 55 protruding to both sides to a rotating hole 54a formed at the center thereof; Each of the two ends of the rotary shaft 55 is fitted into the coupling hole (53a), the fixing portion (53c) is correspondingly engaged with the gear portion 25, the fixing hole (53b) on the opposite side of the fixing portion (25c) A “b” shaped locking member 53 formed; A pressing rod 56 fitted into the fixing holes 53b of the two locking members 53; One side is fixed to the pressing rod 56 and the other side is fixed to the rear of the support (10) to rotate the locking member 53 around the rotation shaft 55 to the left (53c) of the locking member 53 of the gear An elastic body 57 for applying a force to be engaged with the part 25; As the locking member 53 is rotated right about the rotation shaft 55 by pressing the pressing rod 56 downward, the fixing portion 53c and the gear portion 25 are not engaged, and the gear portion 25 is coupled. Lifting cylinder for the lower work of the train vehicle, characterized in that consisting of; locking cylinder 51 is provided with a pressing hole 52 to lower the cart 20. The method of claim 1, When the train vehicle T is placed on the upper end of the support beam 40 to move up and down, the train vehicle T is shaken due to the deviation of the bottom height of the train vehicle T, or the load is further added to the cylinder 30 on one side. Lifting for the lower work of the train vehicle, characterized in that it further comprises a supporting means (60) coupled to the support (40) to prevent being applied. The method of claim 6, The support means 60 is formed in a "┌┐" shape so as to correspond to the support beam 40, the support body 61 is provided with protrusions 62 are formed with screw holes (62a) on both sides; For the lower work of the train vehicle, characterized in that consisting of; a screw rod (62a) is screwed with a support rod (64) having a screw shaft (64a) for adjusting the height according to the deviation of the bottom height of the train vehicle (T); lift. According to claim 7, The support beam 40 and the support body 61 is further provided with a fastening bolt 65 and a nut 66 fastened through the fastening hole 63 formed at the bottom of the support body 61 so as not to be separated. Lift for lower work of train cars. The method of claim 1, A train further comprising a detection sensor 80 capable of detecting an operator working at a specific position in one or a plurality of places selectively among the support 10, the bogie 20, the support beam 40. Lift for undercarriage of the vehicle. The method of claim 9, The detection sensor 80 detects the presence of an operator at a specific position and transmits the detected signal to the hydraulic control unit 74 to operate the opening / closing valve 71 to block the movement of the refinery supplied to the cylinder 30. Lift for lower work of the train vehicle, characterized in that the operation of the leaf (1).