JPH0738321Y2 - Roadbed ballast compaction device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention is used in rail rail maintenance work,
The present invention relates to a ballast ballast compaction device for packing a ballast under a sleeper.

[Prior art]

Traditionally, a pickaxe was used for compaction of ballast ballasts, but nowadays, a handy type tie tamper (hereinafter referred to as "the first conventional machine" that is manually held by an operator is used. Or a multiple tie tamper (hereinafter referred to as “second conventional machine”) configured to automatically perform work by incorporating a compacting claw member into a self-propelled person.

[Problems to be solved by the device]

The first conventional machine is simple and inexpensive, but it is difficult to fully pack the ballast under the sleepers in combination with the fact that the sleepers tend to be wide as a measure against noise pollution. There is a functional problem that good compaction work cannot be performed. In addition, there is a problem in work such as forcing the worker to work hard. In addition, the second conventional machine does not cause such a problem, but is large and extremely expensive. Therefore, when performing rail maintenance of several hundred meters, it is not profitable and running cost is reduced. There's a problem. Therefore, in the current situation where this kind of rail maintenance is frequently performed along with the speeding up of railway operations, there is a strong demand for solving the above-mentioned problems. The present invention has been made in view of the above point, and an object thereof is to provide a compact and inexpensive compacting device for ballast ballasts that can easily and satisfactorily pack the ballast under the sleepers. is there.

[Means for Solving the Problems]

The compacting device of the ballast ballast of the present invention that solves this problem is
It is configured to be used by being attached to an elevator such as a power shovel, and a mounting frame that is attached to a movable elevator and is operated to elevate, and a main frame that is suspended and supported by the mounting frame via a buffer mechanism. , A pair of front and rear compacting claw members that have a compacting claw at the lower end portion and are supported by the main body frame so as to be swingable in the front-rear direction, and both compacting claws are interposed between the compacting claw members. The compaction operation mechanism that causes the members to move closer to each other in the opposite direction, and the pair of front and rear vibration motors that are attached to the respective compaction claw members and rotate in opposite directions are provided. The claw member is connected by inserting a connecting pin provided on the other side into an annular rubber body fitted and fixed to one of the two in such a state that it can be displaced relative to the front and rear and up and down within the elastic deformation range of the rubber body. And each compacting claw member is a vibration motor. More back and forth up and down those configured so that it can be vibrated two-dimensionally.

[Action]

The mounting frame is lowered by an elevator, and both fastening claw members are invaded in the ballast on both sides of the sleeper. This intrusion is performed by the descending operation force of the elevator and the weight of the device. Then, the compaction claws that are opposed to each other in the front-rear direction are moved in a direction toward each other (hereinafter, referred to as “compaction direction”) by the compaction operation mechanism, and the ballast is packed under the sleepers. At this time, when each vibration motor is driven, the coupling pin relatively displaces within the elastic deformation range of the rubber body, so that each compaction claw member is vibrated two-dimensionally in the front, rear, up, and down directions.
The vibration of the compaction claws causes the ballast to be semi-fluidized, so that the ballast is uniformly and tightly packed under the sleepers, so that the ballast can be compacted well. In this way, when the ballast layer portion in which the compaction claw has entered is compacted, the ballast layer portion below this ballast layer portion (hereinafter referred to as "compacted layer portion") (hereinafter referred to as "unconsolidated layer portion") continues. , The unconsolidated layer portion is semi-fluidized by the two-dimensional vibration of the compacting claw, and the compacting claw is compacted by the compacting operation mechanism as described above. Move in the direction and compact. After that, the entire ballast layer is compacted by repeating the descending of the compacting claw and the operation in the compacting direction. By the way, when lowering the compaction claw from the compaction layer part to the unconsolidated layer part, if the compaction claw member is two-dimensionally vibrated, the compaction claw will smoothly enter the unconsolidated layer part. I don't get it. That is, when the compaction claw member is vibrating in the front-back direction orthogonal to the intrusion direction, the deeper the unconsolidated layer portion to which the compaction claw is to penetrate is, the larger the passage resistance due to the ballast layer becomes. Because. In this case, if the pressing force of the compaction claw is increased by the elevator and the compaction claw is forced to enter from the compaction layer part to the unconsolidated layer part, the compaction claw etc. may be damaged. Actually, it is impossible to push the compaction claw into the unconsolidated layer portion. However, in the compacting device of the present invention, the intrusion from the compacted layer portion of the compaction claw into the unconsolidated layer portion is carried out very smoothly by the following action. That is, when the loose layer portion is compacted to become the compaction layer portion, the compaction claw does not move in the compaction direction even if the compaction motion mechanism operates, and each compaction claw member has a compaction motion mechanism. The moment that tries to rotate in the compaction direction and the moment in the opposite direction that is received from the compacted ball acts due to the action of the coupling pin, so that the connecting pin moves relative to the position that compresses the rubber body to the state where it cannot elastically deform. It will be displaced. In this state, the relative displacement of each connecting pin is blocked,
Each compacting claw member and the compacting operation mechanism are fixedly connected, and both compacting claw members are integrated through the compacting operation mechanism, that is, both compacting claw members and compacting operation mechanism. The mechanism and body frame become an integrated structure that does not cause relative movement,
Due to the nature of the vibration motors, the vibrations of both vibration motors are synchronized. As a result, since the rotation directions of both vibration motors are opposite, this integrated structure is suspended and supported by the mounting frame via the cushioning mechanism,
The vertical vibrations acting on the integrated structure are synchronized and become strong, but the horizontal vibrations cancel each other out and disappear. That is, only the vertical vibration force acts on the compaction claw member. Therefore, the vibrating force in the vertical direction allows the compaction claw to smoothly and easily enter from the compacted layer portion to the unconsolidated portion. This invasion is not done by positive pushing by the elevator, but by the vertical vibration force acting on the compaction claw, so to speak. I will sneak in. That is, when the compaction is completed, that is, when the movement of the compaction claw in the compaction direction is blocked by the compaction layer portion, the two-dimensional vibration of the compaction claw automatically changes to the vertical one-dimensional vibration. Thus, the compacting claws automatically invade into the unconsolidated layer portion without positively pushing by the elevator. Then, when the compaction claw enters the uncompacted layer portion where the ballast is not compacted, and the compaction claw can move in the compaction direction, that is, the relative displacement between the connecting pin and the rubber body is When possible, the two-dimensional vibration of the compaction claw is automatically started again, and the uncompacted layer portion is semi-fluidized. In this way, the compaction claw vibrates two-dimensionally until the invading ballast layer portion is compacted, semi-fluidizing the ballast while compacting it, and when the compaction is completed, it vibrates only in the vertical direction. Then, it smoothly penetrates into the unconsolidated layer portion below the consolidated layer portion, and again two-dimensionally vibrates to compact the unconsolidated layer portion. By smoothly repeating the invasion into the unconsolidated layer portion, the entire ballast layer is favorably and easily compacted. Further, the vibration generated by the vibration mechanism is not absorbed by the cushioning mechanism and is not transmitted to the mounting frame. Therefore, by vibrating the compaction claw member, the elevator is not adversely affected.

【Example】

Hereinafter, the structure of the present invention will be specifically described with reference to the embodiments shown in FIGS. In FIG. 1, 1 is a rail laid on a ballast ballast 2 through sleepers 3, 4 is an elevator consisting of a trolley 5 traveling on the rail 1 and a power shovel 6 mounted on the trolley, 7
Is a ballast ballast compaction device attached to the elevator 4. As shown in FIGS. 1 to 3, the compaction device 7 of this embodiment has a mounting frame 8 which is mounted on the elevator 4 and operated to move up and down, and is suspended and supported by the mounting frame 8 via a buffer mechanism 10. Body frame 9, a pair of front and rear compaction claw members 12, 12 supported by the main body frame 9 so as to face each other in the front-rear direction (left-right direction in FIGS. 1 to 3), and the compaction claw members 12,
The compaction operation mechanism 13 for swinging the 12 and the compaction claw members 12, 1
A vibration mechanism 14 for two-dimensionally vibrating 2 in the front-back and up-down directions is provided. As shown in FIGS. 1 to 3, the mounting frame 8 has a rectangular frame shape with a mounting portion 8a provided on the upper surface, and the mounting portion 8a is detachably attached to the tip end of the lifting arm 6a of the power shovel 6. Installed. As shown in FIGS. 1 to 3, the main body frame 9 includes a rectangular plate-shaped upper wall 9a, side walls 9b, 9b hanging from the left and right ends thereof, and front and rear connecting center portions of lower ends of the side walls 9b, 9b. It is configured to have a pair of horizontal support shafts 17, 17. As shown in FIGS. 2 and 6, the buffer mechanism 10 is composed of four suspension members 15 ... Which connect the frames 8 and 9 together. Each suspension member 15 includes a pair of upper and lower rectangular tubular outer shells 15a, 15a and a screw rod 15b for connecting the outer shells 15a, 15a to each other, and each outer shell 15a has 45
4 cylindrical rubbers inserted in a compressed state between a pair of upper and lower rectangular tubular inner shells 15c, 15c that are concentrically inserted while being rotationally displaced The main body frame 9 can be swung back and forth on the mounting frame 8 by mounting the upper inner shell body 15c on the mounting frame 8 and the lower inner shell body 15c on the side wall 9b of the main body frame 9. Suspended and supported by. Such swinging is possible because the inner and outer shell bodies 15a and 15c are relatively deformed while elastically deforming and rotating the rubber bodies 15d, and the rubber bodies 15d have a vibration damping effect. The distance between the two frames 8 and 9 can be adjusted appropriately by the screw rods 15b. Each compacting claw member 12 has a body frame 9 as shown in FIG.
A support frame 16 supported by a support shaft 17 attached to both side walls 9b, 9b of the support frame 16 so as to be swingable back and forth; a pair of left and right holders 16a, 16a fixed in a hanging manner to the support frame 16;
It is composed of a compaction claw 12a attached to the lower end of 6a, and is supported by the main body frame 9 so as to be swingable back and forth around the support shaft 17. The facing interval between the two clamping claw members 12, 12, that is, the front-rear direction interval is set to be larger than the width of the sleeper 3 by a predetermined amount. The interval is set to be larger than the width of the rail 1 by a predetermined amount. As shown in FIGS. 3 to 5, the compaction operation mechanism 13 has a pair of left and right operation arms 13a, 13a provided upright on the upper end of each compaction claw member 12, and both end mounting portions 13 'of a hydraulic cylinder 13g. g, 13'g is pivotally connected to the front and rear operation arms 13a, 13a and 13a, 13a 13b, 13b
By expanding and contracting the hydraulic cylinder 13g, both the compaction claw members 12, 12 are inverted to the compaction action standby position (the alternate long and short dash line position in FIGS. 2 and 3) facing each other in a V shape. It is constructed so that it can be swung over to the opposite end position of the compaction action (the position indicated by the chain double-dashed line in the figure) which is in the shape of a letter "V". Further, as shown in FIG. 4, the respective mounting portions 13'g of the hydraulic cylinder 13g and the operating arms 13a, 13a have both ends of the connecting pin 13b rotatably attached to the operating arms 13a, 13a, and the connecting pin 13b. The central portion of the through hole is loosely fitted into the through hole 18 formed in the mounting portion 13'g, and the annular rubber body 19 is filled in the gap between the inner peripheral surface of the through hole 18 and the outer peripheral surface of the connecting pin 13b. It is buffered by being held. That is, as shown in FIG. 4 and FIG. 5 (A), the ring-shaped rubber bodies 19, 19 fitted and fixed to both ends of the hydraulic cylinder 13g, which is the compaction operation mechanism 13, are attached to the compaction claw members 12 respectively. By inserting the connecting pins 13b provided on the operation arm 13a in such a state that they can be displaced relative to each other in the longitudinal and vertical directions within the elastic deformation range of the rubber body 19, both the fastening claw members 12 and 12 are both body frames. Despite being pivotally supported 17 on the shaft 9, the vibration motors 14a, 14a, which will be described later, are individually devised so that they can be two-dimensionally vibrated back and forth and up and down. As shown in FIGS. 2 and 3, the vibrating mechanism 14 arranges each vibrating motor 14a at a position directly opposite to the swing fulcrum 17, and connects the compacting claw member 12 and the operating arms 13a, 13a. It is attached to the part. Both vibration motors 14a, 14a are arranged in a state in which the eccentric rotation shaft is along the left-right direction and the rotation directions are opposite. Therefore, when both the vibration motors 14a, 14a are driven, the both fastening claw members 12, 12, 12 are slightly swung around the swing fulcrums 17,17. That is, the vertical vibration and the longitudinal vibration are applied to both the fastening claw members 12, 12 in synchronization. Note that, due to the vibration, the upper ends of the operation arms 13a ... Also vibrate, and a load acts on the connection point with both ends of the hydraulic cylinder 13g. This load is caused by the elasticity of the buffer bodies 19 and 19 described above. Absorbed by the deformation, the compaction claw member 12,
Vibration of 12 does not adversely affect the hydraulic cylinder 13g. Further, since the front-back vibration force applied to the main body frame 9 is offset and the main body frame 9 is suspended via the cushioning mechanism 10, the vibration of the compaction claw members 12, 12 does not occur. The mounting frame 8 and thus the elevator 4 will not be adversely affected. By the way, in this embodiment, a vibration motor 14a having an output of 0.75 KW and a rotation speed of 3500 rpm is used, and the compaction claws 12a ... are subjected to a vertical vibration (amplitude is about 2 mm) and a longitudinal vibration (amplitude is about 2 mm) of an exciting force of 1800 Kg. About 4 mm) is devised so that they are given in synchronization. This also allows the operation arm
The connecting point 13b of 13a also vibrates with an amplitude of about 2 mm, but the shock absorber 19
The material and shape of are designed to absorb and relax the vibration at the connecting point. Next, the compacting operation of the loosening by the compacting device 1 configured as described above will be specifically described. First, the trolley | bogie 5 is moved and the power shovel 6 is rotated, and both the compaction claw members 12 and 12 are the front and rear compaction claws 12a and 12a arrange | positioned at the front and back both sides of the sleeper 3, and it opposes left and right. Bring the compaction claws 12a, 12a to positions such that they are arranged on both left and right sides of the rail 1 (see FIGS. 1 to 3). In this state, the hydraulic cylinder 13g, which is the compaction operation mechanism 13, is set to the contracted state, and both compaction claw members 12, 12 are held at the compaction action standby position (see the alternate long and short dash line in FIGS. 2 and 3). Then, the elevating arm 6a of the power shovel 6 is operated to lower the compaction device 7 so that the compaction claws 12a ... Enter the ballast layer 2 and the vibration motors 14a and 14a are driven to perform the compaction. Two-dimensionally vibrates the claws 12a ... The compaction claws 12a ... Intrude into the ballast layer 2 by the descending force of the power shovel 9 and the weight of the device 1. At this time, in the ballast layer portion where the compaction claws 12a ... Have entered, the ballast 2 is caused by two-dimensional vibration of the compaction claws 12a.
When a ... is vibrated, the ballasts 2a ... In the ballast layer portion into which the compaction claws 12a have entered are brought into a semi-fluid state. Then, the hydraulic cylinder 13g is extended to rotate both the compaction claw members 12, 12 toward the compaction action end position, and the compaction claws 12a, 12a facing each other in the front-rear direction are approached to each other, that is, the compaction claws 12a, 12a are closed. Gradually move in a solid direction. With the movement of the compaction claws 12a, the balls 2a are packed under the sleepers 3. At this time, since the balls 2a are in a semi-fluid state, the balls 2a can be easily packed without requiring a large amount of energy for the compaction claws 12a. Moreover, the compaction claw
Combined with the fact that 12a ... oscillate two-dimensionally in the front-back and up-down directions in a substantially elliptical orbit, the balls 2a ... are compacted uniformly and tightly under the sleepers 3. That is, when the compaction claws 12a ... Are two-dimensionally vibrated, the balls 2a ...
The vibration forces P, P in the two-dimensional directions as shown in FIG. 7 act on the balls, and the balls 2a ... Are packed in the two-dimensional directions. For example, when the vibrating forces P, P act on the three balls 2a ... In the state shown by the solid line in FIG. 7, the balls 2a, 2a on both sides are thereby moved to the center ball 2 ', as shown by the chain line.
While pushing a toward the sleeper 3 direction, it is possible to bring them closer. When the compaction claws 12a are only one-dimensionally vibrated in the front-rear direction, as shown by the chain line in FIG.
The balasses 2a ... are only packed in one dimension, their compaction is insufficient, and they cannot be semi-fluidized. Therefore, at the stage when both the compaction claw members 12, 12 do not move in the compaction direction regardless of the operation of the cylinder 13g, the sleeper 3
The balls 2a ... are uniformly packed in the state that they are sufficiently compacted. When the ballast layer is compacted, the cylinder
Despite the operation of 13g, the compaction claws 12a ... Do not move in the compaction direction, and as shown in FIG. 5 (B), the connecting pins 13b move to a position where the rubber body 19 is compressed to a state where it cannot be elastically deformed. And the relative displacement of each connecting pin 13b is prevented. In this state, both the fastening claw members 12, 12 and the cylinder 13g are fixedly connected, and both the fastening claw members 1
2, 12 will be integrated via a cylinder 13g.
Therefore, both the fastening claw members 12, 12 and the cylinder 13g and the main body frame 9 become an integrated structure, and the vibrations of the two vibration motors 14a, 14a are synchronized due to the nature of the vibration motor 14a. As a result, since the rotation directions of the two vibration motors 14a, 14a are opposite to each other, the vibrations in the left-right direction cancel each other out and disappear, and the both compaction claw members 12, 12 vibrate only in the vertical direction. Become. Therefore, the compaction claws 12a ... Do not need to be positively pushed in by the power shovel 6, and are the ballast layer portion where the ballasts 2a ... It will sneak into the compaction layer. Then, when the compaction claws 12a ... Intrude into the uncompacted layer portion where the balls 2a ... Are not compacted, and the compaction claws 12a ... Can be moved in the compaction direction, the compaction claw members are formed. The fixed connection state between the cylinders 12 and 12 and 12 is released, and as shown in FIG. 5 (A), for example, the relative displacement between each connection pin 13b and the rubber body 19 becomes possible, and the compaction claw 12a is again formed. The two-dimensional vibration of ... is started. When the two-dimensional vibration of the compaction claws 12a ... Is started, the balls 2a.
By the movement of the compaction claws 12a ... In the compaction direction by the cylinder 13g, the compact compaction in the unconsolidated layer portion can be satisfactorily performed as described above. After that, by repeating the above work, the ballast layer 2
The whole is compacted well. The compacting device 7 according to the present invention is not limited to the above-mentioned embodiments, but can be appropriately modified and improved within the range not departing from the basic principle of the present invention. In addition to the power shovel, the compaction device according to the present invention can be used by being attached to an appropriate elevator such as a dolly equipped with an elevator mechanism.

[Effect of device]

As is clear from the above description, the compaction device of the present invention is
Compared to the first conventional machine, it is superior in function and work, and can perform the compaction work easily and satisfactorily. It is smaller and cheaper than the second conventional machine, and the rail maintenance section is small. Even in the case of several hundred meters, it is possible to perform work that is profitable enough, and its practical value is extremely large.

[Brief description of drawings]

1 to 7 show an embodiment of a compaction device according to the present invention. FIG. 1 is a side view showing a state in which the compaction device is mounted on an elevator, and FIG. 2 is a compaction device. Of FIG. 3, FIG. 3 is a longitudinal side view of the same, FIG. 4 is a cross-sectional plan view of a main part taken along line IV-IV of FIG. 3, FIG. 5 is a sectional view taken along line VV of FIG. FIG. 6 is a vertical cross-sectional view of the main part of FIG. 2, FIG. 7 is an explanatory view showing the packing operation of the ball, and FIG. 8 is packing of the ball when the compaction claw is one-dimensionally vibrated in the front-back direction. It is explanatory drawing which shows an effect. 1 …… rail, 2 …… ballast ballast, 3 …… sleepers, 4 ……
Elevator, 7 ... Compaction device, 8 ... Mounting frame, 9 ...
Main body frame, 10 ... Buffer mechanism, 12 ... Compaction claw member, 12
a ... Compaction claw, 13 ... Compaction operation mechanism, 13b ... Connection pin,
14a …… Vibration motor, 19 …… Rubber body.

Claims (1)

[Scope of utility model registration request] 1. A main body frame having a mounting frame mounted on a movable elevator and operated to move up and down, a main body frame suspended and supported by the mounting frame through a buffer mechanism, and a compacting claw at a lower end portion. A pair of front and rear compacting claw members which are hung so as to be swingable in the front-rear direction, and a compacting operation mechanism which is interposed between the two compacting claw members and causes both compacting claw members to approach each other in opposite directions. , A pair of front and rear vibration motors having opposite rotation directions attached to the respective compaction claw members, and the compaction operation mechanism and each compaction claw member are fitted and fixed to one of the two. Connected by inserting a connecting pin provided on the other side of the annular rubber body in a state in which it can be displaced relative to the front, rear, up, and down within the elastic deformation range of the rubber body, and each compaction claw member is connected by the vibration motor. It is configured so that it can be vibrated in two dimensions, Clamping the solid unit of the track bed ballast to symptoms.