JP6574812B2 - Underfloor equipment attachment / detachment device - Google Patents

Description

  The present invention relates to an underfloor equipment attachment / detachment device that attaches / detaches an underfloor equipment attached to the underfloor of a railway vehicle during inspection and repair of the railway vehicle.

  A power transmission device, an electric device, a brake device, and the like are disposed under the floor of the railway vehicle, and a pneumatic device, a hydraulic device, a drainage device, and the like are attached to the specific vehicle. In some cases, the maintenance requires a work of separating the vehicle structure and the carriage and removing the underfloor equipment. Even if the vehicle structure is jacked up to a predetermined height, the removal of the underfloor equipment is limited by the height to the lower surface of the vehicle structure, so that the detachable carriage for removing the underfloor equipment must have the lowest overall device height. preferable. This type of detachable carriage is used in various fields and is also used in the automobile industry.

  Patent Document 1 discloses a technique related to an underfloor equipment batch disassembling apparatus for railway vehicles. The above-mentioned pallet is used in a railcar under-floor equipment collective disassembly device that unloads and transports one piece of under-floor equipment attached to the car body in a body mount system onto a pallet that is mounted on a traverser at the bottom of the car body and pulled out. A support jack is provided for individually receiving the equipment beam to which each equipment is attached. In this way, it is possible to remove the underfloor equipment of the railway vehicle using the traverser.

  Patent Document 2 discloses a technique related to a carriage-use transfer device. In a transport device using a carriage in which a lift table that supports a transported object is provided on a transport cart that travels along the transport path, the lift table has a table-type cradle that supports the bottom of the transported object on the table body. It is detachable. At the same time, when the table body is at the lower limit position, the upper surface of the table body is configured to be flush with the flat work floor on the transport carriage. Further, on this transport carriage, there is a column-type cradle comprising a pair of left and right column members positioned on the left and right sides of the object to be conveyed in plan view and a receiving part that supports the left and right sides of the object to be conveyed. A pair of support members are detachably attached in a state of being positioned on both the left and right sides of the lifting table.

  Patent Document 3 discloses a technique related to an assembling transport device such as an automobile. Body support means is provided on the transport carriage for transporting the vehicle body, and the assembly work from the lower side with respect to the vehicle body supported at a predetermined height by the support means can be performed on the transport work carriage. . A synchronous traveling carriage capable of traveling in synchronization with the transportation carriage in the engine assembly work section in the traveling route of the transportation carriage is provided, and an opening provided on the floor surface of the transportation carriage is provided on the synchronous traveling carriage. A lifter equipped with a lifting platform that moves up and down is mounted. The lifting table that supports the engine of the engine carrier truck that has entered the carriage floor and stopped at the stop position is lifted to a predetermined height by the lifting platform of the lifter on the synchronous traveling carriage side.

JP 58-126253 A JP 2009-51290 A JP 2009-248657 A

  However, since the transport apparatuses of Patent Document 2 and Patent Document 3 are premised on being incorporated in a production line of an automobile, the work can be performed if the lifter reaches a predetermined height at a predetermined position. However, when performing maintenance of the railway vehicle, the arrangement of the underfloor equipment differs for each vehicle, and therefore, the configuration in which the transport device can move in the longitudinal direction of the vehicle structure is preferable. Moreover, it is preferable that it is the structure which can finely adjust the base of a conveying apparatus. However, Patent Document 2 has a configuration in which a transport device moves along a production line, and Patent Document 3 has a structure in which a transport device moves in a pit dug in a shape orthogonal to the production line. That is, the movement range is restricted by the shape of the pit. For this reason, it is not possible to move the transport device freely, and it is considered that there is a restriction on the movement. This is the same in that the transport device of Patent Document 1 also uses a traverser.

  Underfloor equipment attached under the vehicle structure is moved from the side of the vehicle structure to the side of the vehicle structure to be attached and detached. It is required to move to the side. Although the vehicle structure is lifted for maintenance, if the vehicle structure is lifted too high, the workability deteriorates, so the space under the vehicle structure is limited. Further, since there are cases where fine adjustment of the position, rotational movement, and the like are also required under the vehicle structure, a transporting carriage with a high degree of freedom of movement is required.

  Accordingly, an object of the present invention is to provide an underfloor equipment attachment / detachment device that can be freely moved in order to solve such problems.

  In order to achieve the above object, an underfloor equipment attachment / detachment device according to one aspect of the present invention has the following characteristics.

(1) In an underfloor equipment attaching / detaching device used for attaching / detaching equipment provided under the floor of a railway vehicle, a base portion having an elevating function, a cart supporting the base portion, and a base that is disposed under the cart. The wheel portion includes a first wheel and a second wheel, and the first wheel and the second wheel have a block-like frame having two sets of mutually parallel side surfaces. rotatably connected by an axle which is supported by the first motor is connected to the first wheel, the second motor is connected to the second wheel, the periphery of said frame, said first motor, said first One wheel, the second motor, and the second wheel are arranged so as to surround in this order, and the wheel portion and the carriage are connected by a trunnion structure.

  According to the aspect described in (1) above, it is possible to finely adjust the position of the carriage of the underfloor equipment attachment / detachment device. This is because the wheel part supports the carriage with a trunnion structure, and the left and right wheels are pivotally supported by the wheel part, so that the carriage can be swung without the axle of the wheel part being shaken. It is to become. This facilitates fine adjustment of the position of the underfloor equipment attaching / detaching device, and makes it easy to attach / remove the underfloor equipment. As a result, since the maintenance performance of the railway vehicle is improved, it is possible to contribute to shortening the work time and improving the work efficiency.

(2) In the underfloor equipment attachment / detachment device according to (1), the first or second motor is disposed in front of or behind the axle of the wheel portion, and the first or second wheel and the first or second. It is desirable that power be transmitted to the motor by a belt.

  According to the aspect described in (2) above, the wheel portions can be arranged in a compact manner, and the motor for steering can be eliminated by providing a motor for each wheel. As a result, the height of the carriage can be reduced.

It is a perspective view of a conveyance trolley of this embodiment. It is a side surface schematic diagram of the conveyance trolley | bogie of this embodiment. It is a perspective view of a wheel part of this embodiment. It is a side view of a wheel part of this embodiment. It is a top view of the wheel part of this embodiment. It is a perspective view of the base part unit of this embodiment. It is a model side view of the base part unit of this embodiment. It is a perspective view explaining the turning table of this embodiment. It is a perspective view explaining the front and back table of this embodiment. It is a perspective view explaining the left-right table of this embodiment. It is a side view explaining an angle adjustment table of this embodiment. It is a side view explaining an angle adjustment table of this embodiment.

  First, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the perspective view of the conveyance trolley | bogie of this embodiment is shown. The transport cart 100 corresponding to the underfloor equipment attaching / detaching device is a self-propelled cart, and is provided with a base unit 110 at the center of the cart frame 104 and a wheel unit 150 at the bottom. In FIG. 2, the side surface schematic diagram of a conveyance trolley is shown. A recess 105 is provided in the center of a carriage frame 104 that is a frame of the transport carriage 100, and has a so-called bathtub structure. The base unit 110 is accommodated in the recess 105. A control panel 101 is embedded in the side surface of the transport carriage 100, and a control panel 102 is prepared on the front surface.

  In FIG. 3, the perspective view of a wheel part is shown. In FIG. 4, the side view of a wheel part is shown. FIG. 5 shows a top view of the wheel portion. 4 and 5 are schematic diagrams for convenience of explanation. The four wheel portions 150 arranged under the carriage frame 104 are wheels 151 on both sides (for convenience, the first wheel 151a and the second wheel 151b are used. The wheels 151 arranged in parallel in the trunnion structure are connected by an axle 152 so as to be rotatable.

  The axle 152 is rotatably supported by a frame 153. Servo motors 154 (a first motor 154a and a second motor 154b for convenience are provided on both sides of the frame 153. Or both shall be indicated). That is, the first motor 154a, the first wheel 151a, the second motor 154b, and the second wheel 151b are arranged around the frame 153 in this order. A pulley 155 is attached to the tip of the servo motor 154, and power is transmitted to the wheels 151 via the belt 156. Although the belt 156 is used as the power transmission means, power transmission is also possible by using a chain or the like.

  A center pin portion 157 is supported on the upper portion of the frame 153 so as to be rotatable with respect to the carriage frame 104. The central axis of the central pin portion 157 is disposed so as to come to the center of the axle 152. As described above, the wheel portion 150 has a structure in which the wheels 151 are arranged on the left and right sides, and the servo motors 154 are arranged on the front and rear sides, and the height of the wheel portion 150 itself is lowered by eliminating the steering motor. It is suppressed. Moreover, the wheel part 150 arrange | positioned at right and left is connected with the lot which is not illustrated by 2 sets.

  FIG. 6 is a perspective view of the base unit. FIG. 7 schematically shows a side view of the base unit. In the base unit 110, a frame 111, a hydraulic table lifter 112, a turning table mechanism 113, a front and rear table mechanism 114, a left and right table mechanism 115, and an angle adjustment table mechanism 116 are stacked to form a four-layer table. It has a structure.

  FIG. 8 is a perspective view for explaining the turning table mechanism. FIG. 9 is a perspective view for explaining the front and rear table mechanism. FIG. 10 is a perspective view for explaining the left and right table mechanism. 11 and 12 are side views for explaining the angle adjustment table mechanism. The table having four layers can turn and move the angle adjustment table mechanism 116 in the front / rear and left / right directions. The hydraulic table lifter 112 supported by the frame 111 is provided with a hydraulic cylinder at the center of the device, and has a function of raising and lowering the swivel table mechanism 113 provided on the upper portion thereof via an X-shaped arm while maintaining the level. .

  The turning table mechanism 113 includes a hydraulic cylinder and has a function of turning the turning table 113a about ± 7 degrees. The front / rear table mechanism 114 fixed on the turning table 113a has a function of moving the front / rear table 114a back and forth about ± 50 mm as shown in FIG. The front and rear table mechanism 114 includes an electric screw jack 114b, and the electric screw jack 114b moves the front and rear table 114a.

  The left and right table mechanism 115 fixed on the front and rear table 114a has a function of moving the left and right table 115a to the left and right by about ± 50 mm as shown in FIG. The left and right table mechanism 115 includes an electric screw jack 115b, and the electric screw jack 115b moves the left and right table 115a. An angle adjustment table mechanism 116 is fixed to the left and right tables 115a.

  Then, as shown in FIGS. 11 and 12, the angle adjustment table mechanism 116 can perform angle adjustment with manual hydraulic cylinders 117 attached to the four sides thereof. The manual hydraulic cylinder 117 has a spherical bearing 117a at its tip, and has a structure for changing the angle of the angle adjustment table 116a. The adjustment stroke is about 50 mm, driven by a hand pump (not shown), and the height of each can be adjusted by a hydraulic cylinder. When the base unit 110 having such a configuration is housed in a recess 105 provided in the center of the carriage frame 104 and is at the lower limit of the base unit 110, the surface position of the upper face of the carriage frame 104 and the upper face of the angle adjustment table 116a. It is set to a height that matches the surface position.

  Since the underfloor apparatus attachment / detachment device according to the invention of this embodiment has the above-described configuration, the following operations and effects are achieved.

  First, the advantage is that it is possible to provide an underfloor equipment attachment / detachment device that is freely movable. This is a base unit 110 corresponding to a base part having an elevating function in a transport carriage 100 corresponding to an underfloor equipment attaching / detaching apparatus used for attaching / detaching equipment provided under the floor of a railway vehicle, and a base part unit. 110, and a wheel part 150 disposed below the carriage frame 104. The wheel part 150 has wheels 151 connected to the left and right of the axle 152. Each wheel 151 is driven by a motor. This is because a certain servo motor 154 is connected, and the wheel portion 150 and the carriage frame 104 are connected by a trunnion structure.

  A center pin portion 157 including a tube ear 158 is supported on the frame 153 of the wheel portion 150, and the center pin portion 157 is disposed at the center of the axle 152. Since the center pin portion 157 has a structure that supports the carriage frame 104, the wheel portion 150 can rotate around the axis center of the center pin portion 157. Since each servo motor 154 is configured to transmit power to the wheel 151 by the belt 156, the servo motor 154 serves as both a travel motor and a steering motor. If the paired wheels 151 rotate in the same direction, the vehicle travels, and if it rotates in the opposite direction, steering becomes possible.

  As a result, by arranging the wheels 151 in a double row, the shaft of the wheel portion 150 is less likely to shake even when the transport carriage 100 is translated and rotated, and fine adjustment is facilitated. In the past, a method of supporting a single wheel by sandwiching it from both sides has been adopted. However, when the position of the transport carriage 100 is finely adjusted just below the railway vehicle, there are many difficulties in position adjustment. This is particularly true in cases where the tires are rotated in a stopped state, called “cut-off”. This has a greater effect if the conditions are bad, such as the effects of wheel friction and uneven surfaces on the floor surface. As a result, there is a risk of overloading at the time of steering, causing the transport cart 100 and the underfloor equipment to interfere. . However, since the wheels 151 are arranged in parallel and the center pin portion 157 is arranged at the center thereof and the ground contact surface is dispersed, the wheel 151 is configured to rotate around the shaft center. it can.

  Servo motors 154 are arranged before and after the axle 152 of the wheel portion 150, and the wheels 151 and the servo motor 154 are configured to transmit power by a belt 156. Steering of the wheel unit 150 is performed using a servo motor 154. Therefore, it is not necessary to prepare a separate steering motor, and the height of the wheel portion 150 can be suppressed. As a result, the height of the transport cart 100 can be suppressed. It is desirable that the height of the transport cart 100 be suppressed in order for the transport cart 100 to enter the lower side of the vehicle structure and remove the underfloor equipment.

  As mentioned above, although embodiment of the underfloor apparatus attachment / detachment apparatus which concerns on this invention was described, this invention is not necessarily limited to this, A various change is possible in the range which does not deviate from the meaning. For example, although a hydraulic jack or an electric servo motor is used for each part, the power is not limited to hydraulic pressure or electricity. The servomotor 154 is configured to transmit power by the belt 156, but this does not prevent the use of another power transmission means, for example, a chain.

100 Carriage Cart 101 Control Panel 102 Control Panel 104 Carriage Frame 105 Recess 110 Base Unit 150 Wheel

Claims (2)

In the underfloor equipment attaching / detaching device used for attaching / detaching equipment provided under the floor of the railway vehicle,
A base portion provided with an elevating function; a carriage supporting the base portion; and a wheel portion disposed under the carriage,
The wheel portion includes a first wheel and a second wheel ,
The first wheel and the second wheel are rotatably connected by an axle supported by a block-shaped frame having two sets of mutually parallel side surfaces ,
A first motor is connected to the first wheel, a second motor is connected to the second wheel,
It is arranged around the frame so as to surround the first motor, the first wheel, the second motor, and the second wheel in this order.
The wheel part and the carriage are connected by a trunnion structure;
A device for attaching and detaching underfloor equipment. In the underfloor equipment attachment / detachment device according to claim 1,
The first or second motor is disposed in front of and behind the axle of the wheel portion, and the first or second wheel and the first or second motor are powered by a belt;
A device for attaching and detaching underfloor equipment.

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