JP3665098B2 - Caliper brake device for railway vehicles - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a caliper brake device installed in a railway vehicle.
[0002]
[Prior art]
For example, Japanese Examined Patent Publication No. 2-2488 discloses a caliper brake device installed in a railway vehicle.
This type of brake device has a frame that is fixed to a carriage of a railway vehicle, and a caliper brake body that is slidably supported on the frame via two pins.
The caliper brake main body includes two arms sandwiching a rotor attached to a vehicle wheel, and a brake member having a brake pad is attached to a surface of the arm facing the rotor. The control is replaced when wear occurs. For this purpose, a configuration is adopted in which the control is inserted into each arm from below and the control is fixed to the arm with an anchor block.
[0003]
[Problems to be solved by the invention]
In this type of brake device, a cylinder is disposed on the first arm of the caliper arms, the brake is pressed by the piston, and the caliper brake body including the second arm is the first arm. It slides against the frame with the reaction force. Therefore, the control member disposed on the first arm moves in a direction protruding from the arm, and therefore requires a different mounting structure from the control member disposed on the second arm.
[0004]
In the present invention, the first arm has a structure in which a guide rail member that moves together with the piston is attached, a control member is inserted into the guide rail member, and is supported on the lower end of the arm by an anchor pin. Yes. The anchor pin needs to support the brake member and the guide rail member at the same time. The present invention is particularly first lower anchor pins and the guide rail member and the caliper for railway wheel to ensure none if tighten Rukoto the erroneous assembly is assembled in a precise positional relationship during assembly of the brake shoe of the cylinder side providing brake system is an object.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a caliper brake device for a railway vehicle according to the present invention includes a support frame fixed to a bogie of the railway vehicle, and two support pins on the upper and lower sides of the support frame in the axial direction of the support pin. A caliper brake body supported slidably on the caliper, first and second arms that are provided on the caliper brake body and sandwich the wheels of the vehicle, a cylinder provided in the first arm, a guide rail member is pressed by the piston, the guide and the first brake shoe which is inserted from below to the rail member, first the lower anchor pin for holding the lower end of the first brake shoe, the second A second restrictor inserted from below into the arm; and a second lower anchor pin for holding a lower end portion of the second restrictor. The first and second lower anchor pins are each a spring plate. Hanging It is attached to the attachment surfaces of the lower ends of the first and second arms via the first and second lower anchor blocks that are suspended and held by the lower ends of the first and second arms by the metal fittings. The first lower anchor pin is slidably inserted into the cylinder of the first lower anchor block so as to follow the movement of the first restrictor, and there is an anchor pin below the neck of the lower anchor pin. A ring-shaped groove having an outer diameter smaller than the outer diameter is formed, and the link-shaped groove engages with a recess at the lower end portion of the guide rail member to be a normal mounting position. in the brake device, to form a lower end portion of the guide rail member first brake shoe is inserted into a shape that protrudes from the mounting surface of the lower end of the first arm, holding the first brake shoe from below In the state where the first lower anchor pin that interferes with the lower end portion of the guide rail member, the first lower anchor block cannot be screwed and fastened to the mounting surface of the lower end of the first arm by the anchor bolt. To do .
[0006]
Further, a spring plate suspension metal fitting for connecting the first lower anchor block holding the first control element and the first arm is provided, and the spring plate suspension metal fitting has a lower end portion of the first lower anchor block. And is slidably attached to a pin implanted in the first arm through a long hole.
[0007]
[Action]
By providing the above means, the anchor bolt can be screwed into the bolt hole on the arm side only after the anchor pin is engaged with the guide rail member and the control wheel at the correct positions.
[0008]
【Example】
FIG. 1 is a side view of a caliper brake device to which the present invention is applied, and FIG. 2 is a plan view.
The caliper brake device generally indicated by reference numeral 1 has a caliper-shaped main body 10 that sandwiches a wheel 5, and the main body 10 is attached to the support frame 20 via two support pins 30 and 32 that are spaced apart vertically . Supported. The support frame 20 has a groove 22 provided on the lower surface side, and the entire caliper brake device is fixed on the carriage of the vehicle by using the groove 22.
[0009]
The main body 10 includes two first and second arms 12 and 14 that hold wheels, and the first arm 12 is equipped with two hydraulic cylinders 40 and 40 . Further, the first arm 12 is provided with gap adjusting devices 50 and 50 for automatically adjusting the gap between the control member having the brake shoe and the rotor attached to the wheel.
[0010]
At the upper end of the first arm 12, a first upper brake support member 60 is disposed. The upper brake shoe receiving member 60 receives the upper end of the first brake shoe 70 through the first upper anchor pins 64. The upper brake member receiving member 60 is fixed to the first arm 12 via an anchor bolt 62.
At the lower end of the first arm 12, a first lower restrictor receiving member 80 is disposed. The lower brake shoe receiving member 80 receives the lower end of the first brake shoe 70 through the first lower anchor pins 84. The lower brake bearing receiving member 80 is fixed to the first arm 12 via an anchor bolt 82.
[0011]
The second arm 14 disposed to face the first arm 12 is not equipped with a cylinder for pressing the second restrictor 70. Therefore, a structure is adopted in which the caliper brake body 10 is slidable in the axial direction of the support pins by the support pins 30 and 32 and is supported in a floating state. The second arm 14 also includes a second upper control member receiving member 60a and a second lower control member receiving member 80a to support the second control member 70, and the second control member 70 includes: There is no sliding in the axial direction of the support pin .
[0012]
FIG. 3 is an explanatory view showing the overall structure of the control device 70.
The brake element 70 has a configuration in which a segment 74 of a brake lining member is fixed on a back plate 72 by fixing means 75. In the illustrated embodiment, four segments 74 are attached, and each segment 74 is formed with a groove 74a and the like.
A guide plate 76 is attached to the side of the back plate 72 opposite to the segment 74. The guide plate 76 is used to attach the brake device 70 to the arm of the brake body, and is formed with tapered surfaces 76a whose tips are widened on both sides. Concave portions 77 for engaging the anchor pins are formed at the upper and lower ends of the guide plate 76.
[0013]
FIG. 4 is an explanatory view showing a mounting structure of the brake device 70 to the caliper brake main body 10. A guide rail member 100 pressed by a piston is attached to the arm 12 on one cylinder side of the main body 10, and the guide plate 76 of the restrictor 70 is inserted into the guide rail member 100, thereby controlling the restrictor 70. Is supported. Thereafter, the anchor block is fixed to the anchor block mounting surface 90 using the bolt hole 92 to prevent the control member 70 from falling off.
For the arm 14 on the non-cylinder side, the control member 70 is directly attached using a groove 94 formed inside the arm.
[0014]
FIG. 5 is an explanatory view showing the action of pulling down the brake member 70 inserted into the arms 12 and 14 of the caliper brake body.
With respect to the arm 14 on the non-cylinder side, the anchor pin 84a abuts against the recess 77 of the guide plate 76 at the lower end portion of the second restrictor 70, and the anchor pin 84a is fixed by the anchor block 80a. The anchor block 80a is held on the second arm 14 side by the spring plate hanging bracket 110, and is prevented from falling off.
For the first arm 12 on the cylinder side, a guide rail member 100 is attached to the inside of the arm 12, and the control member 70 is inserted into the guide rail member 100.
[0015]
The first restrictor 70 is pushed up until the concave portion 77 at the upper end portion of the guide plate 76 comes into contact with the upper receiving member, and the anchor pin 84 integrated with the anchor block 80 comes into contact with the concave portion 77 at the lower portion of the guide plate 76, The anchor block 80 is fixed to the arm 12 side with a bolt.
The anchor block 80 is held on the arm 12 side by a spring plate-made hanging bracket 110. Therefore, when removing the restrictor 70, the anchor bolt 82 is removed, and the lower anchor pin 84 is removed from the recess 77 of the restrictor , whereby the restrictor 70 can be extracted downward.
[0016]
FIG. 6 shows a state in which the restrictor 70 is held by the anchor pin 84 at the lower end of the arm 12 on the cylinder side. In FIG. 6, the anchor pin 84 is slidably inserted into the cylinder 85. Following the movement of 70 to the rotor side.
The neck lower portion of the anchor pin 84, that has a ring-shaped groove 86 of the outer diameter smaller than the outer diameter of the anchor pin 84 is formed. When the ring groove 86 engages with the recess 102 at the lower end of the guide rail member, the anchor pin 84 becomes a normal mounting position.
[0017]
FIG. 10 shows a state where the anchor pin 84 is incorrectly assembled to the conventional guide rail member 100a. The conventional guide rail member 100a has a recess 102 that engages with the ring-shaped groove 86 of the anchor pin 84 at the lower end, and the leg portions 104a on both sides of the recess 102 are formed at the same level as the mounting surface 90 of the anchor block 80. It was.
Therefore, the anchor block 80 is in a state where the concave portion 102 of the guide rail member 100a does not properly engage with the ring-shaped groove 86 in the lower portion of the anchor pin 84 and the outer peripheral portion of the anchor pin 84 rides on the concave portion 102 of the guide rail member 100a. In some cases, the arm mounting surface 90 may be fixed.
Such an incorrect assembly of the anchor pin 84 causes a serious problem such as a malfunction of the cylinder side restrictor 70 and, in turn, dropping of the restrictor 70 and the anchor block 80. The caliper brake device of the present invention solves this problem.
[0018]
6 to 9 are explanatory views showing an embodiment of the present invention.
In this embodiment, the guide rail member 100 attached to the inside of the cylinder-side arm 12 has its both side 105 bent inward to form a guide groove 106. The guide plate 76 of the restrictor 70 is inserted into the guide groove 106, and the restrictor 70 is supported by the guide rail member 100.
A concave portion 102 for receiving an anchor pin ring groove 86 is formed at the lower end of the guide rail member 100. The tips of the leg portions 104 on both sides of the recess 102 protrude downward from the mounting surface 90 of the anchor block 80.
[0019]
As shown in FIG. 7, the spring plate suspension metal fitting 110 that supports the anchor block has a long overall length . As shown in FIG. 7, when the anchor pin 84 rides on the entrance of the recess 102 of the guide rail member 100, 82a is configured not to reach the bolt hole of the mounting surface 90.
[0020]
Figure 9 shows a state immediately before interference with the leg portion 104 of the anchor pin 84 and the guide plate member 100, lever neck lower portion of the ring groove 86 of the anchor pin 84 is properly inserted into the recess 102 of the guide plate member 100, anchor bolt Since 82 can be screwed into the anchor bolt hole on the mounting surface , the problem of incorrect assembly of the anchor pin 84 does not occur .
[0021]
【The invention's effect】
As described above, the present invention is a caliper brake device used in a brake device for a railway vehicle and the like, which is an improved structure for mounting a brake pad provided with a brake pad segment attached to a caliper body. This simplifies the assembly work when replacing the wheel and prevents erroneous assembly.
The design changes of the caliper brake components can be minimized to reduce costs, and conventional components can be used.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention.
FIG. 2 is a plan view showing an embodiment of the present invention.
FIG. 3 is an explanatory view showing the structure of a control device.
FIG. 4 is an explanatory view showing a structure for holding a brake wheel.
FIG. 5 is an explanatory view showing the action of removing the brake element.
FIG. 6 is an explanatory view showing a structure for mounting a brake restrictor according to the present invention.
FIG. 7 is an explanatory view showing a structure for mounting a brake member according to the present invention.
FIG. 8 is an explanatory view showing a structure for mounting a brake restrictor according to the present invention.
FIG. 9 is an explanatory view showing a structure for mounting a brake restrictor according to the present invention.
FIG. 10 is an explanatory view showing a mounting structure of a conventional brake device.
[Explanation of symbols]
1 railcar caliper brake device 10 caliper brake body 12 cylinders of the first arm 14 counter-cylinder side of the second arm 20 the frame 30 the upper support pin 32 the lower support pins 40 a hydraulic cylinder 50 gap adjusting device 60 upper anchor block 64 upper Anchor pin 70 Control wheel 80 Lower anchor block 82 Lower anchor bolt 84 Lower anchor pin 100 Guide rail member 110 Spring plate suspension bracket

Claims (2)

Provided on the caliper brake body, a support frame that is fixed to the bogie of the railway vehicle, a caliper brake body that is slidably supported in the axial direction of the support pin by two upper and lower support pins with respect to the support frame First and second arms that sandwich the wheels of the vehicle, a cylinder provided in the first arm, a guide rail member pressed by the piston of the cylinder, and a lower side with respect to the guide rail member a first brake shoe which is inserted from the first and the lower anchor pin for holding the lower end of the first brake shoe, a second brake shoe which is inserted from below with respect to the second arm, the second And a second lower anchor pin for holding the lower end portion of the control member, and the first and second lower anchor pins are suspended and held at the lower end portions of the first and second arms by spring plate suspension fittings, respectively. To be The first and second lower anchor pins are attached to the attachment surfaces of the lower ends of the first and second arms via the first and second lower anchor blocks, and the first lower anchor pin follows the movement of the first brake member. A ring-shaped groove having an outer diameter smaller than the outer diameter of the anchor pin is formed in a lower portion of the neck of the lower anchor pin, and the link-shaped groove is guided by the lower anchor pin. In a caliper brake device for a railway vehicle configured to be a normal mounting position by engaging with a recess at a rail member lower end,
A lower end portion of the guide rail member into which the first restrictor is inserted is formed in a shape protruding from the mounting surface of the lower end of the first arm, and a first lower anchor pin for holding the first restrictor from below is provided. A caliper brake device for a railway vehicle, wherein the first lower anchor block cannot be screwed and fastened to the mounting surface of the lower end of the first arm by an anchor bolt in a state where it interferes with the lower end portion of the guide rail member. . A spring plate suspension fitting for connecting the first lower anchor block for holding the first restrictor and the first arm is provided, and the lower end portion of the spring plate suspension fitting is fixed to the first lower anchor block. The caliper brake device for a railway vehicle according to claim 1, wherein the caliper brake device is slidably attached to a pin implanted in the first arm through a long hole.

Images