CN109969225A - Automatic alignment structure of brake shoe and wheel tread in rail brake - Google Patents
Automatic alignment structure of brake shoe and wheel tread in rail brake Download PDFInfo
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- CN109969225A CN109969225A CN201910346436.9A CN201910346436A CN109969225A CN 109969225 A CN109969225 A CN 109969225A CN 201910346436 A CN201910346436 A CN 201910346436A CN 109969225 A CN109969225 A CN 109969225A
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- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 29
- 239000000725 suspension Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 210000004907 gland Anatomy 0.000 description 5
- 230000003068 static effect Effects 0.000 description 3
- 210000000051 wattle Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H15/00—Wear-compensating mechanisms, e.g. slack adjusters
- B61H15/0064—Wear-compensating mechanisms, e.g. slack adjusters mechanical and non-automatic
- B61H15/0071—Wear-compensating mechanisms, e.g. slack adjusters mechanical and non-automatic by means of linear adjustment
- B61H15/0085—Wear-compensating mechanisms, e.g. slack adjusters mechanical and non-automatic by means of linear adjustment with screw-thread and nut
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
本发明公开了一种轨道制动器中的闸瓦与车轮踏面自动找正结构，包括支座、闸瓦托、调整机构、瓦托吊杆和转轴，所述支座的一侧与所述调整机构连接，所述支座的另一侧设有第一安装孔和第二安装孔，所述第一安装孔和第二安装孔均设置在所述闸瓦托的两内侧壁之间；所述闸瓦托设置在所述瓦托吊杆的内侧，所述转轴穿过所述瓦托吊杆上的通孔、所述闸瓦托上的通孔和所述第一安装孔将瓦托吊杆、闸瓦托和支座连接；所述闸瓦托的内侧壁为摩擦面，所述第二安装孔内设有两块摩擦块，两块所述摩擦块分别与所述闸瓦托的两内侧壁接触，两块所述摩擦块之间设有弹簧，所述弹簧始终处于压缩状态。本发明实现了闸瓦托与车轮踏面之间间隙的自动找正。
The invention discloses an automatic alignment structure for a brake shoe and a wheel tread in a rail brake, which comprises a support, a brake shoe holder, an adjustment mechanism, a shoe suspension rod and a rotating shaft. One side of the support is connected to the adjustment mechanism. connection, the other side of the support is provided with a first installation hole and a second installation hole, and the first installation hole and the second installation hole are both arranged between the two inner side walls of the brake shoe holder; the The brake shoe holder is arranged on the inner side of the shoe holder, and the rotating shaft passes through the through hole on the shoe holder, the through hole on the brake shoe holder and the first installation hole to hang the shoe holder. The rod, the brake shoe holder and the support are connected; the inner side wall of the brake shoe holder is a friction surface, and two friction blocks are arranged in the second installation hole, and the two friction blocks are respectively connected with the brake shoe holder. The two inner side walls are in contact, and a spring is arranged between the two friction blocks, and the spring is always in a compressed state. The invention realizes the automatic alignment of the gap between the brake shoe holder and the wheel tread.
Description
技术领域technical field
本发明涉及轨道制动技术领域，特别是涉及一种轨道制动器中的闸瓦与车轮踏面自动找正结构。The invention relates to the technical field of rail brakes, in particular to an automatic alignment structure of a brake shoe and a wheel tread in a rail brake.
背景技术Background technique
轨道制动是通过调整机构推动闸瓦托，带动闸瓦与车轮贴合来实现车轮制动的，但是，在制动过程中，闸瓦托与车轮踏面之间的间隙会出现不均匀的情况，无法自动找正。Track braking is to push the brake shoe holder through the adjustment mechanism to drive the brake shoe to fit with the wheel to achieve wheel braking. However, during the braking process, the gap between the brake shoe holder and the wheel tread will be uneven. , which cannot be automatically corrected.
发明内容SUMMARY OF THE INVENTION
为解决现有技术中存在的问题，本发明提供了一种轨道制动器中的闸瓦与车轮踏面自动找正结构，实现了闸瓦托与车轮踏面之间间隙的自动找正。In order to solve the problems existing in the prior art, the present invention provides an automatic alignment structure of the brake shoe and the wheel tread in the rail brake, which realizes the automatic alignment of the gap between the brake shoe holder and the wheel tread.
为实现上述目的，本发明采用的技术方案是：For achieving the above object, the technical scheme adopted in the present invention is:
一种轨道制动器中的闸瓦与车轮踏面自动找正结构，包括支座、闸瓦托、调整机构、瓦托吊杆和转轴，所述支座的一侧与所述调整机构连接，所述支座的另一侧设有第一安装孔和第二安装孔，所述第一安装孔和第二安装孔均设置在所述闸瓦托的两内侧壁之间；所述闸瓦托设置在所述瓦托吊杆的内侧，所述转轴穿过所述瓦托吊杆上的通孔、所述闸瓦托上的通孔和所述第一安装孔将瓦托吊杆、闸瓦托和支座连接；所述闸瓦托的内侧壁为摩擦面，所述第二安装孔内设有两块摩擦块，两块所述摩擦块分别与所述闸瓦托的两内侧壁接触，两块所述摩擦块之间设有弹簧，所述弹簧始终处于压缩状态。An automatic alignment structure for a brake shoe and a wheel tread in a rail brake, comprising a support, a brake shoe holder, an adjustment mechanism, a shoe suspension rod and a rotating shaft, one side of the support is connected with the adjustment mechanism, and the The other side of the support is provided with a first installation hole and a second installation hole, and the first installation hole and the second installation hole are both arranged between the two inner side walls of the brake shoe holder; the brake shoe holder is provided with On the inner side of the tile hanger rod, the rotating shaft passes through the through hole on the tile hanger rod, the through hole on the brake shoe holder and the first installation hole to connect the tile hanger rod and the brake shoe. The bracket is connected with the support; the inner side wall of the brake shoe holder is a friction surface, and two friction blocks are arranged in the second installation hole, and the two friction blocks are respectively in contact with the two inner side walls of the brake shoe holder. , a spring is arranged between the two friction blocks, and the spring is always in a compressed state.
上述结构中，支座与闸瓦托之间除了用转轴连接以外，还用两组弹簧和摩擦块将支座与闸瓦托连接一起。当使闸瓦托与支座之间绕转轴相对旋转的外力小于摩擦块与闸瓦托之间形成的摩擦力矩时，闸瓦托与支座保持相对静止；当使闸瓦托与支座之间绕转轴相对旋转的外力大于摩擦块与闸瓦托之间形成的摩擦力矩时，闸瓦托与支座之间相对转动。因此，在制动的过程中，实现了闸瓦托与车轮踏面之间间隙的自动找正。In the above structure, in addition to the connection between the support and the brake shoe holder by the rotating shaft, two sets of springs and friction blocks are used to connect the support and the brake shoe support together. When the external force that makes the relative rotation between the brake shoe holder and the support around the rotating shaft is less than the friction torque formed between the friction block and the brake shoe holder, the brake shoe holder and the support remain relatively static; When the external force of relative rotation around the rotating shaft is greater than the friction torque formed between the friction block and the brake shoe holder, the brake shoe holder and the support rotate relatively. Therefore, in the process of braking, the automatic alignment of the gap between the brake shoe holder and the wheel tread is realized.
优选的，所述弹簧为蝶形弹簧。Preferably, the spring is a butterfly spring.
碟形弹簧的压量调整适当，使用寿命长，不易变形和损坏，在一个大修期内不用更换。The pressure of the disc spring is properly adjusted, the service life is long, it is not easy to be deformed and damaged, and it does not need to be replaced during an overhaul period.
优选的，所述第一安装孔、瓦托吊杆上的通孔以及闸瓦托上的通孔内均设有轴套。Preferably, a shaft sleeve is provided in the first installation hole, the through hole on the shoe hanger and the through hole on the brake shoe support.
在第一安装孔内、瓦托吊杆上的通孔内以及闸瓦托上的通孔内均设置轴套，可以减少转轴与第一安装孔、瓦托吊杆以及闸瓦托之间的磨损，提高设备的使用寿命。Shaft sleeves are arranged in the first installation hole, the through hole on the wattle suspension rod and the through hole on the brake shoe holder, which can reduce the friction between the rotating shaft and the first installation hole, the wattle suspension rod and the brake shoe holder. wear and tear, increasing the service life of the equipment.
优选的，所述闸瓦托的内侧壁上设有用于对所述支座进行限位的加强筋。Preferably, the inner side wall of the brake shoe holder is provided with a reinforcing rib for limiting the position of the support.
加强筋的设置可以防止支座相对闸瓦托发生过度的旋转运动。The arrangement of reinforcing ribs can prevent excessive rotational movement of the bearing relative to the brake shoe holder.
优选的，所述第二安装孔设置有双数个，且双数个所述第二安装孔均布在所述第一安装孔的两侧。Preferably, an even number of the second installation holes are provided, and the even number of the second installation holes are evenly distributed on both sides of the first installation hole.
在第一安装孔的两侧对称设置双数个第二安装孔，可以更好的对闸瓦托与车轮踏面之间的间隙进行自动找正。Symmetrical arrangement of a plurality of second installation holes on both sides of the first installation hole can better automatically align the gap between the brake shoe holder and the wheel tread.
本发明的有益效果是：支座与闸瓦托之间除了用转轴连接以外，还用两组弹簧和摩擦块将支座与闸瓦托连接一起。当使闸瓦托与支座之间绕转轴相对旋转的外力小于摩擦块与闸瓦托之间形成的摩擦力矩时，闸瓦托与支座保持相对静止；当使闸瓦托与支座之间绕转轴相对旋转的外力大于摩擦块与闸瓦托之间形成的摩擦力矩时，闸瓦托与支座之间相对转动。实现了制动的过程中闸瓦托与车轮踏面之间间隙的自动找正。The beneficial effect of the present invention is that in addition to the connection between the bearing and the brake shoe holder by the rotating shaft, two sets of springs and friction blocks are used to connect the bearing and the brake shoe holder together. When the external force that makes the relative rotation between the brake shoe holder and the support around the rotating shaft is less than the friction torque formed between the friction block and the brake shoe holder, the brake shoe holder and the support remain relatively static; When the external force of relative rotation around the rotating shaft is greater than the friction torque formed between the friction block and the brake shoe holder, the brake shoe holder and the support rotate relatively. The automatic alignment of the gap between the brake shoe holder and the wheel tread is realized during the braking process.
附图说明Description of drawings
图1为本发明实施例所述轨道制动器中的闸瓦与车轮踏面自动找正结构的立体图；1 is a perspective view of the brake shoe and the wheel tread automatic alignment structure in the rail brake according to the embodiment of the present invention;
图2为本发明实施例所述轨道制动器中的闸瓦与车轮踏面自动找正结构的剖视图；2 is a cross-sectional view of the automatic alignment structure of the brake shoe and the wheel tread in the rail brake according to the embodiment of the present invention;
图3为本发明实施例所述支座的结构示意图；3 is a schematic structural diagram of the support according to the embodiment of the present invention;
图4为本发明实施例所述调整机构的结构示意图。FIG. 4 is a schematic structural diagram of an adjustment mechanism according to an embodiment of the present invention.
附图标记：Reference number:
1、支座；2、闸瓦托；3、瓦托吊杆；4、转轴；5、第一安装孔；6、第二安装孔；7、碟形弹簧；8、摩擦块；9、轴套；10、调整螺杆；11、压盖；12、空腔；13、定位槽；14、弹簧。1. Support; 2. Brake shoe holder; 3. Swivel bracket; 4. Rotating shaft; 5. First mounting hole; 6. Second mounting hole; 7. Disc spring; 8. Friction block; 9. Shaft sleeve; 10, adjusting screw; 11, gland; 12, cavity; 13, positioning groove; 14, spring.
具体实施方式Detailed ways
下面结合附图对本发明的实施例进行详细说明。The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
实施例1Example 1
如图1-图3所示，一种轨道制动器中的闸瓦与车轮踏面自动找正结构，包括支座1、闸瓦托2、调整机构、瓦托吊杆3和转轴4，所述支座1的一侧与所述调整机构连接，所述支座1的另一侧设有第一安装孔5，第一安装孔5的两侧设有第二安装孔6，所述第一安装孔5和第二安装孔6均设置在所述闸瓦托2的两内侧壁之间，所述闸瓦托2的内侧壁上设有用于对所述支座1进行限位的加强筋，可以防止支座1相对闸瓦托2发生过度的旋转运动；所述闸瓦托2设置在所述瓦托吊杆3的内侧，所述转轴4穿过所述瓦托吊杆3上的通孔、所述闸瓦托2上的通孔和所述第一安装孔5将瓦托吊杆3、闸瓦托2和支座1连接，在第一安装孔5内、瓦托吊杆3上的通孔内以及闸瓦托2上的通孔内均设置轴套9，可以减少转轴4与第一安装孔5、瓦托吊杆3以及闸瓦托2之间的磨损，提高设备的使用寿命；所述闸瓦托2的内侧壁为摩擦面，所述第二安装孔6内设有两块摩擦块8，两块所述摩擦块8分别与所述闸瓦托2的两内侧壁接触，两块所述摩擦块8之间设有蝶形弹簧14，所述蝶形弹簧14始终处于压缩状态，碟形弹簧7的压量调整适当，使用寿命长，不易变形和损坏，在一个大修期内不用更换。As shown in Figures 1-3, an automatic alignment structure for brake shoes and wheel treads in a rail brake includes a support 1, a brake shoe holder 2, an adjustment mechanism, a wattle boom 3 and a rotating shaft 4. The support One side of the seat 1 is connected with the adjustment mechanism, the other side of the support 1 is provided with a first mounting hole 5, and both sides of the first mounting hole 5 are provided with a second mounting hole 6. The hole 5 and the second installation hole 6 are both arranged between the two inner side walls of the brake shoe holder 2, and the inner side wall of the brake shoe holder 2 is provided with a reinforcing rib for limiting the position of the support 1, Excessive rotational movement of the support 1 relative to the brake shoe holder 2 can be prevented; the brake shoe holder 2 is arranged on the inner side of the shoe holder 3, and the rotating shaft 4 passes through the passage on the shoe holder 3. The hole, the through hole on the brake shoe holder 2 and the first installation hole 5 connect the shoe hanger rod 3, the brake shoe holder 2 and the support 1. In the first installation hole 5, the shoe hanger rod 3 A shaft sleeve 9 is arranged in the through hole on the upper and the through hole on the brake shoe holder 2, which can reduce the wear between the rotating shaft 4 and the first installation hole 5, the shoe suspension rod 3 and the brake shoe holder 2, and improve the performance of the equipment. Service life; the inner side wall of the brake shoe holder 2 is a friction surface, and two friction blocks 8 are arranged in the second installation hole 6 , and the two friction blocks 8 are respectively connected to the two inner sides of the brake shoe holder 2 The walls are in contact with each other, a disc spring 14 is arranged between the two friction blocks 8, the disc spring 14 is always in a compressed state, the pressure of the disc spring 7 is properly adjusted, the service life is long, and it is not easy to be deformed and damaged. No replacement is required during an overhaul period.
上述结构中，支座1与闸瓦托2之间除了用转轴4连接以外，还用两组弹簧14和摩擦块8将支座1与闸瓦托2连接一起。当使闸瓦托2与支座1之间绕转轴4相对旋转的外力小于摩擦块8与闸瓦托2之间形成的摩擦力矩时，闸瓦托2与支座1保持相对静止；当使闸瓦托2与支座1之间绕转轴4相对旋转的外力大于摩擦块8与闸瓦托2之间形成的摩擦力矩时，闸瓦托2与支座1之间相对转动。因此，在制动的过程中，实现了闸瓦托2与车轮踏面之间间隙的自动找正。In the above structure, in addition to the connection between the support 1 and the brake shoe holder 2 by the rotating shaft 4, two sets of springs 14 and friction blocks 8 are also used to connect the support 1 and the brake shoe support 2 together. When the external force for relative rotation between the brake shoe holder 2 and the support 1 around the rotating shaft 4 is smaller than the friction torque formed between the friction block 8 and the brake shoe holder 2, the brake shoe holder 2 and the support 1 remain relatively static; When the external force of the relative rotation between the brake shoe holder 2 and the support 1 around the rotating shaft 4 is greater than the friction torque formed between the friction block 8 and the brake shoe holder 2 , the brake shoe holder 2 and the support 1 rotate relatively. Therefore, in the process of braking, the automatic alignment of the gap between the brake shoe holder 2 and the wheel tread is realized.
实施例2Example 2
如图4所示，本实施例在实施例1的基础上，所述调整机构包括调整螺杆10、压盖11和支座1，压盖11与支座1螺纹连接，且压盖11与支座1之间设有空腔12；压盖11的左侧面上开有通孔，通孔的内径大于调整螺杆10的外径；支座1的右侧面上开有呈长方形的定位槽13，调整螺杆10的左端穿过通孔并伸入定位槽13内，调整螺杆10的左端设有呈长方形的定位块，定位块与调整螺杆10一体成型；第一安装孔5或第二安装孔6的轴向与调整螺杆10的轴向垂直；定位槽13的长度方向与第一安装孔5或第二安装孔6的轴向垂直，且定位槽13的长度大于定位块的长度，定位槽13的宽度与定位块的宽度适配；调整螺杆10上套设有垫圈，垫圈与定位块之间设有弹簧14。As shown in FIG. 4 , on the basis of Embodiment 1, the adjustment mechanism includes an adjustment screw 10 , a gland 11 and a support 1 , the gland 11 is threadedly connected to the support 1 , and the gland 11 is connected to the support 1 . There is a cavity 12 between the seats 1; a through hole is opened on the left side of the gland 11, and the inner diameter of the through hole is larger than the outer diameter of the adjusting screw 10; the right side of the support 1 is opened with a rectangular positioning groove 13. The left end of the adjustment screw 10 passes through the through hole and extends into the positioning groove 13. The left end of the adjustment screw 10 is provided with a rectangular positioning block, and the positioning block is integrally formed with the adjustment screw 10; the first installation hole 5 or the second installation The axial direction of the hole 6 is perpendicular to the axial direction of the adjusting screw 10; the length direction of the positioning groove 13 is perpendicular to the axial direction of the first installation hole 5 or the second installation hole 6, and the length of the positioning groove 13 is greater than the length of the positioning block. The width of the groove 13 is adapted to the width of the positioning block; the adjusting screw 10 is sleeved with a washer, and a spring 14 is provided between the washer and the positioning block.
调整螺杆10头部与支座1之间用弹簧14压紧，这样既可以使调整螺杆10头部与支座1之间的结合面贴紧，没有间隙，使调整螺杆10对支座1起到定位、支撑的作用，保证闸瓦与车轮踏面之间的间隙均匀，又可以使支座1相对调整螺杆10上下滑动，支座1连同闸瓦托2、闸瓦相对调整螺杆10上下移动，解决了调整螺杆10的直线运动和支座1连同闸瓦托2、闸瓦随闸瓦吊杆的弧线运动的结合。The spring 14 is used to press the head of the adjusting screw 10 and the support 1, so that the joint surface between the head of the adjusting screw 10 and the support 1 can be tightly attached, and there is no gap, so that the adjusting screw 10 can lift up against the support 1. To the role of positioning and support, the gap between the brake shoe and the wheel tread is uniform, and the support 1 can slide up and down relative to the adjusting screw 10. The support 1 together with the brake shoe holder 2 and the brake shoe move up and down relative to the adjusting screw 10. It solves the combination of the linear movement of the adjusting screw 10 and the arc movement of the support 1 together with the brake shoe holder 2 and the brake shoe along with the brake shoe suspension rod.
对车轮的制动过程为：制动器上的动力机构推动调整螺杆10，使调整螺杆10向左直线运动，调整螺杆10的头部推动支座1向左运动，支座1带动闸瓦托2，使闸瓦与车轮踏面贴合，实现制动。在制动时，支座1连同闸瓦托2、闸瓦随闸瓦吊杆进行弧线运动，使闸瓦与车轮踏面之间的间隙均匀，此时，支座1相对调整螺杆10上下滑动，同时做向右压缩碟形弹簧7的运动，以配合该弧线运动。The braking process of the wheel is as follows: the power mechanism on the brake pushes the adjusting screw 10, so that the adjusting screw 10 moves linearly to the left, the head of the adjusting screw 10 pushes the support 1 to the left, and the support 1 drives the brake shoe holder 2, Make the brake shoe fit with the wheel tread to realize braking. During braking, the support 1 together with the brake shoe holder 2 and the brake shoe move in an arc with the brake shoe hanger, so that the gap between the brake shoe and the wheel tread is uniform. At this time, the support 1 slides up and down relative to the adjusting screw 10 , and at the same time do the movement to compress the disc spring 7 to the right to match the arc movement.
以上所述实施例仅表达了本发明的具体实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。The above-mentioned embodiments only represent specific embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910346436.9A CN109969225A (en) | 2019-04-26 | 2019-04-26 | Automatic alignment structure of brake shoe and wheel tread in rail brake |
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| CN201910346436.9A CN109969225A (en) | 2019-04-26 | 2019-04-26 | Automatic alignment structure of brake shoe and wheel tread in rail brake |
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| CN109969225A true CN109969225A (en) | 2019-07-05 |
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| CN201910346436.9A Pending CN109969225A (en) | 2019-04-26 | 2019-04-26 | Automatic alignment structure of brake shoe and wheel tread in rail brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114394122A (en) * | 2022-01-20 | 2022-04-26 | 南京中车浦镇海泰制动设备有限公司 | Stable mechanism for relieving gap |
| CN114516347A (en) * | 2022-02-28 | 2022-05-20 | 赵程 | Near-rail speed reducer for rail transit |
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| CN204956514U (en) * | 2015-09-21 | 2016-01-13 | 南车株洲电力机车有限公司 | Can prevent brake shoe brake head device of mill partially |
| CN209904772U (en) * | 2019-04-26 | 2020-01-07 | 四川江山轨道交通装备制造有限公司 | Automatic alignment structure for brake shoe and wheel tread in rail brake |
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| JP2009190614A (en) * | 2008-02-15 | 2009-08-27 | Sankosha Co Ltd | Manual type wheel-braking element clearance adjustment unit |
| CN202378902U (en) * | 2011-10-31 | 2012-08-15 | 中国北车集团大连机车车辆有限公司 | Locomotive tread unit brake with self-location brake head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394122A (en) * | 2022-01-20 | 2022-04-26 | 南京中车浦镇海泰制动设备有限公司 | Stable mechanism for relieving gap |
| CN114516347A (en) * | 2022-02-28 | 2022-05-20 | 赵程 | Near-rail speed reducer for rail transit |
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Application publication date: 20190705 |