CN113942540B - Centering device - Google Patents
Centering device Download PDFInfo
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- CN113942540B CN113942540B CN202111269038.5A CN202111269038A CN113942540B CN 113942540 B CN113942540 B CN 113942540B CN 202111269038 A CN202111269038 A CN 202111269038A CN 113942540 B CN113942540 B CN 113942540B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/20—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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Abstract
The invention provides a centering device, comprising: the cover body: comprises a sleeve body mounting cavity, and two sleeve body mounting holes are symmetrically arranged on the side wall of the sleeve body; blocking plate: the plug comprises a first plug plate and a second plug plate which are respectively arranged at the mounting holes of the two sleeve bodies, and the end surface of one side of each plug plate facing the mounting hole comprises an arc-shaped surface; block structure: is arranged in the sleeve body installation cavity; the rolling member: the connecting device is arranged at the through holes at the two ends of the mounting cavity of the block structure and is contacted with the arc-shaped surface of the corresponding side blocking plate; an elastic member: is arranged in the mounting cavity of the block structure; first side closure plate arcwall face includes: a first arc-shaped section at the first side with the radius smaller than that of the sleeve body installation cavity; the second side closure plate arcwall face includes: the first arc-shaped section is arranged on the second side and has the same diameter as the sleeve body installation cavity; the first arc-shaped section on the second side and the first arc-shaped section on the first side are provided with superposed sections at two ends along the radial direction of the sleeve body installation cavity. The centering device can realize multi-section centering control, can stop at a required place, and can center at other places.
Description
Technical Field
The invention belongs to the technical field of railway vehicle buffering devices, and particularly relates to a centering device for a car coupler.
Background
The centering device is an important device for realizing the horizontal swinging and automatic centering functions of the car coupler and is widely applied to the car coupler buffer.
In the prior art, the coupler buffer centering device can realize the automatic centering function of +/-15 degrees after the horizontal swing of the coupler. When the coupler swings left and right within 15 degrees, the centering device is subjected to restoring force of compression of the disc spring, and the coupler can return automatically. The centering mode ensures that the coupler can only be within 15 degrees, no matter which position generates centering force and returns to the central position, the coupler can not control the centering angle, and the multi-section stopping and adjusting function can not be realized. In order to meet the requirements of wider centering angles, such as manually swinging a specific angle and stopping for convenient coupling when the vehicle is in a too small curve, the centering device needs to meet the requirements of a new centering angle: 1. the centering force is generated in the first section range, and automatic centering can be realized; 2. when the range exceeds the first section range, no centering force exists when the range enters the second section range; 3. and the centering force exists in the range of exceeding the second section and entering the third section, and the centering can be automatically performed.
Chinese patent CN101857041B discloses a compact centering device, which keeps the center line of the hook and buffer device consistent with the center line of the vehicle when the external force is small or reduced after the hook and buffer device rotates in the horizontal direction due to the action of the external force through the cooperation of the roller and the arc on the roller plug. The arc on the roller plug is of a bilateral symmetrical structure and only has one arc section which is not concentric with the rotation center of the centering device with the arcs on both sides, the function of the centering device is limited by the structure, the arc has an adjusting function only in a swing range of a certain angle, and the arc does not have a sectional adjusting function and cannot control the centering angle.
Disclosure of Invention
The invention aims to solve one of the technical problems and provides a centering device for a train coupler buffering system with a multi-stage centering adjustment function.
In order to achieve the purpose, the invention adopts the technical scheme that:
a centering device for use with a draft gear for centering draft gear rotation, comprising:
covering a body: the sleeve body comprises a sleeve body mounting cavity along the axial direction of the sleeve body, two sleeve body mounting holes are symmetrically arranged on the side wall of the sleeve body along the radial direction of the sleeve body, and the mounting holes are communicated with the mounting cavity;
blocking plate: the plug comprises a first plug plate and a second plug plate which are respectively arranged at the mounting holes of the two sleeve bodies, and the end surface of one side of each plug plate facing the mounting hole comprises an arc-shaped surface;
block structure: the block structure is arranged behind the sleeve body installation cavity, and the through ports at the two ends of the block structure installation cavity are aligned with the sleeve body installation hole;
rolling parts: the connecting device is arranged at the through holes at the two ends of the mounting cavity of the block structure and is contacted with the arc-shaped surface of the corresponding side blocking plate;
an elastic member: is arranged in the mounting cavity of the block structure;
the axial center of the sleeve body is the rotation center of the rolling piece; taking the rotation center as a reference:
first side closure plate arcwall face includes: the radius of the first arc-shaped section is smaller than that of the mounting cavity of the sleeve body;
the second side closure plate arcwall face includes: the first arc-shaped section is arranged on the second side and has the same diameter as the sleeve body installation cavity;
the second side first arc-shaped section and the first side first arc-shaped section are provided with superposed sections at two ends along the radial direction of the sleeve body mounting cavity; the rolling part and the elastic part are limited in the relative space of the arc-shaped surface by the blocking plates at the two sides, and the elastic part can be compressed when the rolling part moves along the arc-shaped surface.
In some embodiments of the invention, the arc-shaped surface of the first side blocking plate further comprises a first side second arc-shaped section with the same diameter as the sleeve body installation cavity, and the first side second arc-shaped section comprises two sections which are respectively connected with the end parts of the two sides of the first side first arc-shaped section; the first arc-shaped section on the second side and the second arc-shaped section on the first side are provided with superposed sections at two ends along the radial direction of the sleeve body installation cavity.
In some embodiments of the invention, the arc-shaped surface of the second side blocking plate further comprises a second side second arc-shaped section with a radius smaller than that of the sleeve body installation cavity, and the second side second arc-shaped section comprises two sections which are respectively connected with two side end parts of the second side first arc-shaped section; the second side second arc-shaped section and the first side second arc-shaped section are provided with overlapped sections at two ends along the radial direction of the sleeve body installation cavity.
In some embodiments of the invention, the arc-shaped surface of the second side blocking plate further comprises a second side third arc-shaped section with a radius smaller than that of the sleeve body installation cavity, and the second side third arc-shaped section comprises two sections which are respectively connected with two side end parts of the second side second arc-shaped section; the second side third arc-shaped section and the first side second arc-shaped section are provided with overlapped sections at two ends along the radial direction of the sleeve body installation cavity.
In some embodiments of the present invention, the first side second arc segment extends to an edge of the first side closure panel arc segment, and the second side third arc segment extends to an edge of the second side closure panel arc segment.
In some embodiments of the present invention, the center point of the first side first arc-shaped segment is located at the symmetric center of the first side blocking plate in the length direction, and the center point of the second side first arc-shaped segment is located at the symmetric center of the second side blocking plate in the length direction.
In some embodiments of the invention, further comprising:
a shaft block: the two elastic pieces are respectively arranged at two ends of the block structure mounting cavity, one end of each elastic piece is arranged in the block structure mounting cavity, the other end of each elastic piece is positioned outside the block structure mounting cavity, the shaft blocks can move relative to the block structure mounting cavity, and the elastic pieces are limited between the two shaft blocks;
the rolling piece is a roller and is in shaft connection with one end of the shaft block, which is positioned outside the mounting cavity of the block structure.
In some embodiments of the present invention, an end of the shaft block located in the mounting cavity of the block structure forms a cavity opening, and the elastic element is located in the cavity opening.
In some embodiments of the invention, further comprising:
wearing a sleeve: the shaft block structure comprises a plurality of shaft blocks, wherein the shaft blocks are arranged on the outer wall of the shaft block at intervals and used for reducing direct abrasion between the shaft blocks and the block structure installation cavity.
In some embodiments of the present invention, the sheath mounting hole comprises:
arc hole section: the rolling piece is used for accommodating the rolling piece and comprises an upper arc-shaped section and a lower arc-shaped section, and a non-closed structure is arranged between the upper arc-shaped section and the lower arc-shaped section;
a slot section: the first side slot hole section is connected with a first side gap of the upper arc-shaped section and the lower arc-shaped section, and the second side slot hole section is connected with a second side gap of the upper arc-shaped section and the lower arc-shaped section;
the two ends of the arc-shaped surface of the blocking plate form a protruding structure which is respectively inserted into the first slot hole section and the second slot hole section.
In some embodiments of the present invention, an end surface of the block structure facing a side of the bumper is provided with a fixture block for fixing the fixture block to the bumper.
The centering device provided by the invention has the beneficial effects that:
1. the arc surfaces of the two side blocking plates adopt asymmetric structures, each side blocking plate comprises a multi-section segmented arc section structure and comprises a section with the same diameter as the sleeve cavity and a section with different diameters, centering adjustment can be carried out in the section with different diameters, the rotation state of the car coupler can be maintained in the section with the same diameter, and the operation such as connection and hanging of the car can be conveniently maintained in the rotation state of the car.
2. The bilateral arc sections have the segmentation effect, and different centering functions can be combined in a mode of combining a plurality of sections of the same diameter section and a plurality of sections of different diameter sections. The centering control of multistage can be realized, can stop in the place that needs, centering in other places. The automatic coupler is applied to ensure that the coupler is kept at the central position and does not swing left and right in a disorderly way under the normal operation state. When the train needs to be connected and hung on a small curve but exceeds the connection and hanging range, the train is allowed to swing manually to swing at one or more small angles, and automatic connection and hanging are facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram of an explosive structure of a centering device according to the present invention.
Fig. 2 is a schematic structural diagram of the centering device in an assembled state according to the present invention.
Fig. 3 is a schematic diagram of the working cooperation of the arc-shaped sections of the two-sided blocking plate of the invention.
Fig. 4a is a schematic structural view of an arc-shaped section of the first side blocking plate.
Fig. 4b is a schematic structural view of an arc-shaped section of the second side blocking plate.
FIG. 5 is a partial enlarged view of a mounting hole of a single-sided bushing body.
Fig. 6 is a schematic view of an assembly structure of the centering device and the buffer.
1-a sleeve body, 101-a sleeve body installation cavity, 102-a sleeve body installation hole, 1021-an upper arc section, 1022-a lower arc section, 1023-a first side slotted hole section, 1024-a second side slotted hole section, 103-a plate-shaped structure, 104-a fixing piece installation hole, 105-a radial extension part and 106-a rotation center;
201-a first side closure plate, 2011-a first side closure plate first arc-shaped section, 2012-a first side closure plate second arc-shaped section, 202-a second side closure plate, 2021-a second side closure plate first arc-shaped section, 2022-a second side closure plate second arc-shaped section, 2023-a second side closure plate third arc-shaped section, 203-a convex structure;
3-block structure, 301-block structure installation cavity, 302-clamping block;
4-an elastic member;
5-a buffer;
6-shaft block, 601-shaft hole, 602-cavity opening,
7-roller, 701-wheel shaft, 702-wheel body;
8-a guide rod;
9-wearing sleeve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "on," "connected to" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.
The invention provides a centering device, which is matched with a coupler buffer for use and is used for centering rotation of a coupler.
Referring to fig. 1 and 2, the centering device includes a sheath 1, a blocking plate 2, a block structure 3, a rolling member, an elastic member 4, and the like.
The cover body 1: the sleeve body is axially provided with a sleeve body installation cavity 101, the side wall of the sleeve body is symmetrically provided with sleeve body installation holes 102 along the radial direction of the sleeve body, and the installation holes 102 are communicated with the installation cavity 101. In this embodiment, the cylindrical body of the sleeve body 1 is cylindrical, and a cylindrical hole is formed along the thickness direction of the base body, the cylindrical hole is concentric with the sleeve body 1, and the cylindrical hole is the sleeve body installation cavity 101. The axle center direction of cylinder hole and cover body 1 is the cover body 1 axial, and the axial that this scheme is described below is the same direction with the cover body axial.
The upper end surface of the sleeve body 1 comprises a plate-shaped structure 103 extending along the base body to the radial outside, and the plate-shaped structure 103 is provided with a fixing piece mounting hole 104 for fixedly mounting the sleeve body 1 to the buffer body 5 through a fixing piece.
The two radially symmetrical sides of the sleeve body 1 comprise a section of radial extension part 105, and the end surface of the extension part 105 is flat and straight, so that the installation of the plugging plate 2 is convenient. The sleeve mounting hole 102 extends through the cylindrical hole along the direction from the extension 105 to the cylindrical hole.
Blocking plate: the sleeve body comprises a first blocking plate 201 and a second blocking plate 202 which are respectively arranged at two sleeve body mounting holes 102, and the end surface of one side of each blocking plate facing the mounting holes 102 comprises an arc-shaped surface; after the blocking plate is arranged at the mounting hole 102 of the sleeve body, the part of the arc-shaped surface is positioned in the mounting hole 102; the two sides of the arc surface are the installation parts of the blocking plate and the sleeve body 1, are opposite to the radial extension part 105 and are fixed by a fixing part. After the blocking plates are arranged on the sleeve body 1, the two blocking plates seal the mounting holes 102, and a cavity which is closed along the circumferential direction is enclosed by the mounting cavity 101 of the sleeve body.
Block structure 3: the setting is in set body installation cavity 101, is located closure plate 2 promptly and sets body installation cavity 101 besieged city one along the closed cavity of circumference, including the block structure installation cavity 301 that link up the block structure body, block structure 3 sets up behind set body installation cavity 101, and the extending direction of block structure installation cavity 301 is set 1 radial direction of the body, and block structure installation cavity 301 both ends opening can align with two set body mounting holes 102 respectively. The dimensions of the case mounting hole 102 are configured to: at least the entirety of the arcuate surface 201 may be accommodated.
The rolling member: the two ends of the block structure mounting cavity 301 are communicated with each other and are in contact with the arc-shaped surface 201 of the corresponding side blocking plate.
The elastic member 4: is arranged in the block structure mounting cavity 301; in the embodiment, the elastic part adopts a pressure spring;
the axial center of the sleeve body 1 is the rotation center 106 of the rolling part, because the sleeve body 1 is cylindrical, the axis of the cylinder is the rotation center 106 of the sleeve body 1, because the sleeve body installation cavity 101 is a cylindrical cavity, the distance between the rotation center and the peripheral wall of the side of the cavity body corresponds to the radius of the sleeve body installation cavity 101;
with the center of rotation 106 as a reference:
the first side blocking plate 201 arc-shaped surface comprises: a first side first arc-shaped section 2011 with the radius smaller than that of the sleeve body installation cavity;
the second side blocking plate 202 arc-shaped surface comprises: a first arc-shaped section 2021 on the second side and having the same diameter as the mounting cavity of the sleeve body;
the second side first arc-shaped section 2021 and the first side first arc-shaped section 2011 have coinciding sections at two ends along the radial direction of the sleeve body installation cavity 101; the rolling part and the elastic part are limited by the first side blocking plate 201 and the second side blocking plate 202 in the relative space of the arc-shaped surface, and the rolling part can be compressed by the elastic part 4 when running into the arc-shaped section with the radius smaller than that of the sleeve body installation cavity 101 in the process of moving along the arc-shaped surface.
Specifically, the term "overlapping section" as used herein means: the two rolling parts are located at two ends of the sleeve body installation cavity 301 in the same radial extension direction, the lengths of the arc sections corresponding to the first arc section 2011 on the first side and the first arc section 2021 on the second side meet inevitably, and when the rolling part on one side is located in the first arc section 2011 on the first side, the rolling part on the other side can be located in the first arc section 2021 on the second side, that is, the first arc sections on the two sides have central angle overlapping sections.
The rolling elements function in the following specific manner: when the elastic piece moves to a section with the same diameter as the sleeve body installation cavity 101, the elastic piece 4 is not compressed, and the elastic piece 4 has no centering force and does not generate a centering effect; when the elastic piece moves to a smaller radius than the sleeve body installation cavity 101, the elastic piece 4 is compressed, and then the elastic piece 4 has a tendency of restoring action, so that centering force is generated, and centering action is realized.
Thus, when the roller moves to the first side first arc 2011, the compression spring 4 generates a centering force due to the reduced radius, while the second side first arc 2021 side does not generate a centering force.
Furthermore, based on the combination of the multi-section reducing structures, the centering device can act on the centering device in a segmented manner, and the centering action range of the first side blocking plate 201 and the second side blocking plate 202 can be adjusted by configuring the radian and the combination relation of each section.
Referring to fig. 3, 4a and 4b, in some embodiments of the present invention, there is further provided a combined action structure of two side arc surfaces:
the arc-shaped surface of the first side blocking plate further comprises a first side second arc-shaped section 2012 which has the same diameter with the sleeve body installation cavity 101, and comprises two sections which are respectively connected with the end parts of the two sides of a first side first arc-shaped section 2011; the second side first arc-shaped section 2021 and the first side second arc 2012-shaped section have coincident sections at two ends along the radial direction of the sheath installation cavity. Referring to the previous definition of "overlap," the first side second arcuate segment 2012 and the second side first arcuate segment 2021 have an overlap at the center angle of the arcs so that they cooperate to center the roller.
In order to further improve the centering adjustment effect in a multi-angle range, in some embodiments of the present invention, the second side blocking plate arc-shaped surface 202 further includes a second side second arc-shaped section 2022 with a radius smaller than that of the sheath installation cavity 101, and the second side second arc-shaped section 2022 includes two sections, which are respectively connected to two side end portions of the second side first arc-shaped section 2021; the second side second arc-shaped section 2022 and the first side second arc-shaped section 2012 have overlapped sections at two ends along the radial direction of the sheath installation cavity 101. Similarly, second lateral second arcuate segment 2022 and first lateral second arcuate segment 2012 define a coincident segment of the arcuate center angle such that the two cooperate to center the rollers.
In order to further improve the centering adjustment effect in a multi-angle range, in some embodiments of the present invention, the second side blocking plate arc-shaped surface 202 further includes a second side third arc-shaped section 2023 with a radius smaller than that of the sheath installation cavity 101, and the second side third arc-shaped section 2023 includes two sections, which are respectively connected to two side ends of the second side second arc-shaped section 2022; the second side third arc-shaped section 2023 and the first side second arc-shaped section 2012 have overlapped sections at two ends along the radial direction of the sheath installation cavity 101. Similarly, the third side arc-shaped section 2023 and the second side arc-shaped section 2012 are overlapped along the sheath installation cavity 101 to generate an arc-shaped central angle, so that the two sections can cooperate to generate a centering effect on the rolling elements.
In the above embodiment, the first side second arc-shaped section 2012 extends to the edge of the arc-shaped section of the first side closure panel 201, i.e., the first side closure panel 201 includes two arc-shaped sections with different radii; the second side third arc segment 2023 extends to the edge of the second side closure panel arc segment 202, i.e. the second side closure panel 202 comprises three arc segments with different radii. This configuration limits the maximum centering margin (first side second arcuate segment 2012, second side third arcuate segment 2023) and ensures that the rolling elements rotate without over-rotation causing damage.
In the above embodiment, the central point of the first side first arc-shaped segment 2011 is located at the symmetrical center of the first side blocking plate 201 in the length direction, and the central point of the second side first arc-shaped segment 2021 is located at the symmetrical center of the second side blocking plate 202 in the length direction. Therefore, the first side first arc-shaped section 2011 and the first side second arc-shaped section 2012 form a symmetrical structure on the first side blocking plate 201; the second side first arc-shaped section 2021, the second side second arc-shaped section 2022 and the second side third arc-shaped section 2023 form a symmetrical structure on the second side blocking plate 202, so as to ensure controllable symmetry in bilateral movement centering of the rolling elements.
Based on the structure, the working process of the centering device and the technical effects which can be realized by the centering device are as follows.
When the coupler is stressed in the horizontal direction, the buffer drives the centering body to rotate, and rolling pieces in the centering device move along the arc-shaped surfaces of the blocking plates on the two sides under the driving of the centering body. The initial roller position is located at the center point of first side first arc 2011 and the center point of second side first arc 2021.
The rolling piece rotates along the two-side blocking plate, the initial rotation angle is that the radius corresponding to the first arc-shaped section 2021 of the second-side blocking plate is equal to the diameter of the sleeve cavity 101, but the radius of the first arc-shaped section 2011 of the first side is reduced, the piston moves towards the middle, and the disc spring is compressed, so that the centering force is generated; the first side blocking plate 201 provides a rotating curved surface in the first section, and when the rolling elements are positioned in the range of the first section, the centering device is provided with a centering force coupler which can automatically center;
when the rolling members continue to rotate along the roller plug, the first side rolling member exceeds the range of the first side first arc-shaped section 2011 and enters the range of the first side second arc-shaped section 2012, at the moment, the second side rolling member is still positioned in the second side plug plate first arc-shaped section 2021, the rotating radiuses of the two sides of the continuous rotation are not changed, so that no centering force exists, and the centering body can be stopped at the moment;
when the rolling member further rotates and the first side rolling member is still positioned in the range of the first side second arc-shaped section 2012, the second side rolling member enters the second side blocking plate second arc-shaped section 2022, the rotation on the second side blocking plate 202 further compresses the disc spring, and the centering device generates a centering force to drive the centering body to return to the center;
when the rolling members further rotate, the first side rolling member is still positioned in the range of the first side second arc-shaped section 2012, and the second side rolling member enters the third arc-shaped section 2023 of the second side blocking plate, the radius cannot be changed due to the continuous rotation, so that no centering force is generated, and the centering body can be stopped in the position in the range.
Two roller blocks providing the centering angle in the centering device are asymmetric left and right, namely, the first side blocking plate 201 can adjust the centering angle in the first section, and the second side blocking plate 202 can provide the centering angle in the third section. The centering device can realize multi-section centering control, can stop at a required place, and can center at other places.
The configuration structure of the arc-shaped segment of the blocking plate provided in the above embodiment is not limited to the blocking plate structure, and the first side blocking plate 201 and the second side blocking plate 202 may be further extended to more segment structures, so that the centering body can be stopped and centered at more positions.
In some embodiments of the present invention, there is further provided a rolling element structure and mounting method, wherein the centering device further comprises:
the shaft block 6: the two-shaft-block-structure-mounted elastic element comprises two blocks which are respectively mounted at two ends of a structure mounting cavity 301, one end of each block is arranged in the block structure mounting cavity 301, the other end of each block is positioned outside the block structure mounting cavity 301, a shaft block 6 can move relative to the block structure mounting cavity 301, an elastic element 4 is limited between the two shafts, and the position of the shaft block 6 relative to the block structure mounting cavity 301 can be adjusted by controlling the length of the elastic element 4, so that part of the shaft block can extend out of the block structure mounting cavity 301;
the rolling element is a roller 7 which is connected with one end of the shaft block 6 which is positioned outside the mounting cavity of the block structure through a shaft. The roller 7 comprises a wheel shaft 701 and a wheel body 702 arranged on the wheel shaft 701, wherein the rolling surface of the wheel body 702 is in contact with the blocking plate arc-shaped surface 201.
Specifically, two shaft blocks are defined as a first shaft block and a second shaft block, and are inserted into the installation cavity 301 through ports on two sides of the installation cavity 301. The part of the roller shaft extending out of the mounting cavity 301 is of a structure with two opposite bulges at intervals up and down, a shaft hole 601 is arranged, and the roller shaft 701 is inserted in the shaft hole 601.
In some embodiments of the present invention, the end of the shaft block 6 located in the block structure installation cavity 301 forms a cavity opening 602, and the elastic element 4 is installed in the cavity opening 602, such a structure can better limit the elastic element 4, prevent the elastic element 4 from shaking in the installation cavity 301, and ensure a stable compression effect on the elastic element 4. The elastic part 4 can be further sleeved on the guide rod 8, and the abnormal deformation of the elastic part 4 is avoided.
In order to ensure that the shaft block 6 can be smoothly inserted into the block structure mounting cavity 301, the outer diameter of the shaft block needs to be smaller than the inner diameter of the mounting cavity 301, which causes movement allowance between the shaft block and the mounting cavity and is easy to generate contact wear. To solve the problem, some embodiments of the present invention further include:
the abrasion sleeve 9: the shaft block structure comprises a plurality of shaft blocks 6, wherein the shaft blocks 6 are arranged on the outer wall of the shaft block 6 at intervals and used for reducing direct abrasion between the shaft blocks 6 and the block structure installation cavity 301. The wearing sleeve 9 can be made of materials such as rubber and can be replaced after being damaged.
In order to solve the problem of stable installation and matching between the blocking plate 2 and the sleeve body 1, in some embodiments of the invention, a matching and mounting structure between the blocking plate and the sleeve body is further provided. Referring to fig. 5, the case mounting hole 102 includes:
arc hole section: the rolling piece accommodating device is used for accommodating rolling pieces and comprises an upper arc-shaped section 1021 and a lower arc-shaped section 2022, and a non-closed structure is arranged between the upper arc-shaped section and the lower arc-shaped section;
a slot section: comprises a first side slot hole section 1023 and a second side slot hole section 1024, wherein the first side slot hole section 1023 connects the first side gaps of the upper arc-shaped section 1021 and the lower arc-shaped section 1022, and the second side slot hole section 1024 connects the second side gaps of the upper arc-shaped section 1021 and the lower arc-shaped section 1022;
the height of the slot hole section in the axial direction is greater than the width of the gap between the upper arc section 1021 and the lower arc section 1022.
The two ends of the arc surface of the blocking plate 2 form a protruding structure 203, which is respectively inserted into the first slot section 1023 and the second slot section 1024. The matched position of arc hole section and slot hole section forms a necking down structure relative to its both sides, can guarantee that closure plate 2 card is difficult for deviating from in the slot hole section.
Referring to fig. 6, in order to solve the problem of mounting the centering device to the coupler draft gear, a fixture block 302 is disposed on an end surface of the block structure facing to one side of the draft gear 5, and correspondingly, the draft gear 5 has a slot for receiving the fixture block 302, and the fixture block 302 is used for mounting and fixing with the draft gear.
The centering device is matched with the coupler buffer for use, can generate different acting forces to the coupler in different coupler swing ranges, can realize multi-section centering control, and can stop at a required place and center at other places. The automatic coupler is applied to ensure that the coupler is kept at the central position and does not swing left and right in a disorderly way under the normal running state. When the train needs to be connected and hung on a small curve but exceeds the connection and hanging range, the train is allowed to swing manually to swing at one or more small angles, and automatic connection and hanging are facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A centering device, used with a coupler draft gear, for centering rotation of a coupler, comprising:
covering a body: the sleeve body comprises a sleeve body mounting cavity along the axial direction of the sleeve body, two sleeve body mounting holes are symmetrically arranged on the side wall of the sleeve body along the radial direction of the sleeve body, and the mounting holes are communicated with the mounting cavity;
blocking plate: the plug comprises a first side plug plate and a second side plug plate which are respectively arranged at the mounting holes of the two sleeve bodies, and the end surface of one side of each plug plate facing the mounting hole comprises an arc-shaped surface;
block structure: the block structure is arranged behind the sleeve body installation cavity, and the through ports at the two ends of the block structure installation cavity are aligned with the sleeve body installation hole;
rolling parts: the blocking plate is arranged at the through holes at the two ends of the mounting cavity of the block structure and is contacted with the arc-shaped surface of the corresponding side blocking plate;
an elastic member: is arranged in the mounting cavity of the block structure;
the axial center of the sleeve body is the rotation center of the rolling piece; taking the rotation center as a reference:
first side closure plate arcwall face includes: a first arc-shaped section at the first side with the radius smaller than that of the sleeve body installation cavity;
the second side closure plate arcwall face includes: the first arc-shaped section is arranged on the second side and has the same diameter as the mounting cavity of the sleeve body;
the second side first arc-shaped section and the first side first arc-shaped section are provided with superposed sections at two ends along the radial direction of the sleeve body installation cavity; the rolling part and the elastic part are limited in the relative space of the arc-shaped surface by the blocking plates at the two sides, and the elastic part can be compressed when the rolling part moves along the arc-shaped surface.
2. The centering device as claimed in claim 1, wherein the arc-shaped surface of the first side closure plate further comprises a first side second arc-shaped segment having the same diameter as the mounting cavity of the sleeve body, and the first side second arc-shaped segment comprises two segments which are respectively connected with two side end portions of the first side first arc-shaped segment; the first arc-shaped section on the second side and the second arc-shaped section on the first side are provided with overlapped sections at two ends along the radial direction of the sleeve body installation cavity.
3. The centering device of claim 2, wherein the curved surface of the second side blocking plate further comprises a second side second curved section with a radius smaller than that of the mounting cavity of the sleeve body, and the second side second curved section comprises two sections which are respectively connected with two side end parts of the second side first curved section; the second side second arc-shaped section and the first side second arc-shaped section are provided with overlapped sections at two ends along the radial direction of the sleeve body installation cavity.
4. The centering device of claim 3, wherein the curved surface of the second side blocking plate further comprises a second side third curved segment with a radius smaller than that of the mounting cavity of the sleeve body, and the second side third curved segment comprises two segments which are respectively connected with two side end parts of the second side second curved segment; the second side third arc-shaped section and the first side second arc-shaped section are provided with overlapped sections at two ends along the radial direction of the sleeve body installation cavity.
5. The centering device of claim 4, wherein the first side second arcuate segment extends to an edge of the first side blanking plate arcuate segment and the second side third arcuate segment extends to an edge of the second side blanking plate arcuate segment.
6. The centering device of any one of claims 2 to 5, wherein the center point of the first lateral first arc segment is located at the center of symmetry along the length of the first side closure panel and the center point of the second lateral first arc segment is located at the center of symmetry along the length of the second side closure panel.
7. The centering device of claim 1, further comprising:
a shaft block: the two elastic pieces are respectively arranged at two ends of the block structure mounting cavity, one end of each elastic piece is arranged in the block structure mounting cavity, the other end of each elastic piece is positioned outside the block structure mounting cavity, the shaft blocks can move relative to the block structure mounting cavity, and the elastic pieces are limited between the two shaft blocks;
the rolling piece is a roller and is connected with one end of the shaft block, which is positioned outside the mounting cavity of the block structure, through a shaft.
8. The centering device of claim 7, wherein an end of said shaft block located within the mounting cavity of the block structure forms a cavity, and said resilient member is located within the cavity.
9. The centering device of claim 1, wherein said case mounting hole comprises:
arc hole section: the device comprises an upper arc-shaped section and a lower arc-shaped section, wherein a non-closed structure is arranged between the upper arc-shaped section and the lower arc-shaped section;
a slot section: the first side slot hole section is connected with a first side gap of the upper arc-shaped section and the lower arc-shaped section, and the second side slot hole section is connected with a second side gap of the upper arc-shaped section and the lower arc-shaped section;
the height of the slot hole section along the axial direction is larger than the width of a gap between the upper arc-shaped section and the lower arc-shaped section;
the two ends of the arc-shaped surface of the blocking plate form a protruding structure which is respectively inserted into the first slot hole section and the second slot hole section.
10. The centering device as claimed in claim 1, wherein a latch is provided on an end surface of the blocking structure facing the bumper for fixing the blocking structure to the bumper.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269038.5A CN113942540B (en) | 2021-10-29 | 2021-10-29 | Centering device |
| PCT/CN2021/133545 WO2023070806A1 (en) | 2021-10-29 | 2021-11-26 | Centering apparatus |
| KR1020247010197A KR20240049370A (en) | 2021-10-29 | 2021-11-26 | centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269038.5A CN113942540B (en) | 2021-10-29 | 2021-10-29 | Centering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113942540A CN113942540A (en) | 2022-01-18 |
| CN113942540B true CN113942540B (en) | 2022-12-09 |
Family
ID=79337058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269038.5A Active CN113942540B (en) | 2021-10-29 | 2021-10-29 | Centering device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20240049370A (en) |
| CN (1) | CN113942540B (en) |
| WO (1) | WO2023070806A1 (en) |
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|---|---|---|---|---|
| CN101857041A (en) * | 2009-11-16 | 2010-10-13 | 青岛四方车辆研究所有限公司 | Compact centring device |
| WO2014066880A1 (en) * | 2012-10-26 | 2014-05-01 | Wabtec Holding Corp. | Coupler torsion spring centering device |
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| CN112977530A (en) * | 2021-02-07 | 2021-06-18 | 中车青岛四方车辆研究所有限公司 | Initiative corner drive arrangement and rotation coupling |
| CN216424417U (en) * | 2021-10-29 | 2022-05-03 | 中车制动系统有限公司 | Centering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4569455A (en) * | 1984-04-04 | 1986-02-11 | Harvey Hubbell Incorporated | Centering detent |
| DE10021338A1 (en) * | 2000-05-02 | 2001-11-08 | Rag Ag | Track platform wagon with positive guidance with bogie and coupling |
| JP5307104B2 (en) * | 2010-10-14 | 2013-10-02 | 株式会社日本製鋼所 | Connecting device |
| EP3750774A1 (en) * | 2019-06-12 | 2020-12-16 | ALSTOM Transport Technologies | Centering device for centering a front coupler of a railway car and method for centering a front coupler of a railway car |
| CN111497889A (en) * | 2020-05-28 | 2020-08-07 | 常州中车铁马科技实业有限公司 | Automatic coupler centering device and assembling method thereof |
| CN214325103U (en) * | 2021-02-07 | 2021-10-01 | 中车青岛四方车辆研究所有限公司 | Initiative corner drive arrangement and rotation coupling |
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2021
- 2021-10-29 CN CN202111269038.5A patent/CN113942540B/en active Active
- 2021-11-26 KR KR1020247010197A patent/KR20240049370A/en active Search and Examination
- 2021-11-26 WO PCT/CN2021/133545 patent/WO2023070806A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857041A (en) * | 2009-11-16 | 2010-10-13 | 青岛四方车辆研究所有限公司 | Compact centring device |
| WO2014066880A1 (en) * | 2012-10-26 | 2014-05-01 | Wabtec Holding Corp. | Coupler torsion spring centering device |
| CN104071175A (en) * | 2014-06-30 | 2014-10-01 | 常州南车铁马科技实业有限公司 | Coupler buffer for railway vehicle |
| WO2016000601A1 (en) * | 2014-06-30 | 2016-01-07 | 常州南车铁马科技实业有限公司 | Coupler buffer connector for rail vehicle and buffer connecting system using same |
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| CN112977530A (en) * | 2021-02-07 | 2021-06-18 | 中车青岛四方车辆研究所有限公司 | Initiative corner drive arrangement and rotation coupling |
| CN216424417U (en) * | 2021-10-29 | 2022-05-03 | 中车制动系统有限公司 | Centering device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023070806A1 (en) | 2023-05-04 |
| CN113942540A (en) | 2022-01-18 |
| KR20240049370A (en) | 2024-04-16 |
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Address after: 266111 South Side of Xinye Road and West Side of Herong Road, Qingdao Hi-tech Industrial Development Zone, Shandong Province Applicant after: CRRC Brake System Co.,Ltd. Address before: 266111 Qingdao High-tech Industrial Development Zone, Qingdao, Shandong Province, on the south side of Xinye Road and on the west side of Herong Road Applicant before: QINGDAO SRI TECHNOLOGY Co.,Ltd. |
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