CN111069894A - Variable-gauge wheel set axle box assembling method and assembling tool - Google Patents
Variable-gauge wheel set axle box assembling method and assembling tool Download PDFInfo
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- CN111069894A CN111069894A CN201911204043.0A CN201911204043A CN111069894A CN 111069894 A CN111069894 A CN 111069894A CN 201911204043 A CN201911204043 A CN 201911204043A CN 111069894 A CN111069894 A CN 111069894A
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- locking spring
- locking
- cover plate
- variable
- axle box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
- B23P21/002—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control the units stationary whilst being composed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/301—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating metal springs
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to the field of variable gauge of rail vehicles, and provides an assembly method and an assembly tool for an axle box of a variable gauge wheel pair, which comprises the following steps: assembling a locking spring guide post and a locking spring cover plate; placing a locking spring into a counter bore at the upper part of the locking pin, and inserting a guide column of the locking spring into the locking spring; compressing downwards from the upper end of the locking spring cover plate by using a compression tool until the locking spring cover plate is tightly attached to the axle box body; at least installing and pre-tightening a locking piece at the diagonal position of the locking spring cover plate and then releasing the compression tool; after all the locking pieces are pre-tightened, torque is applied to fasten all the locking pieces. The invention can realize the assembly of the axle box and the locking spring of the variable-gauge wheel set, has simple assembly method, no damage to assembly components and simple and quick prepressing process, and meets the assembly requirement of the axle box assembly of the new structure of the variable-gauge wheel set.
Description
Technical Field
The invention relates to the technical field of rail vehicle variable gauge, in particular to a method and a tool for assembling an axle box of a variable gauge wheel pair.
Background
The variable-gauge bogie axle box assembly adopts a brand new design structure, is different from a traditional axle box structure of wheel pairs, is additionally provided with a locking mechanism in the variable-gauge axle box assembly, realizes locking of a locking pin through a locking spring, and needs to be compressed in advance before assembly due to the fact that the locking spring has high pre-pressure.
However, the assembly of the axle box of the variable-gauge wheel set is carried out manually at present, the assembly difficulty of the locking spring is high, the assembly efficiency is low, and the assembly requirement of the axle box of the variable-gauge wheel set with a new structure cannot be met.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an assembling method of a variable-gauge wheel set axle box, which can realize the assembling of the variable-gauge wheel set axle box and a locking spring, has the advantages of simple assembling method, no damage to assembling components, simple and quick prepressing process and meets the assembling requirement of the new structure axle box assembly of the variable-gauge wheel set.
The invention further provides an assembly tool for the variable-gauge wheel pair axle box.
The embodiment of the first aspect of the invention provides a variable-gauge wheel pair axle box assembling method, which comprises the following steps of:
assembling a locking spring guide post and a locking spring cover plate;
placing a locking spring into a counter bore at the upper part of the locking pin, and inserting a guide column of the locking spring into the locking spring;
compressing downwards from the upper end of the locking spring cover plate by using a compression tool until the locking spring cover plate is tightly attached to the axle box body;
at least installing and pre-tightening a locking piece at the diagonal position of the locking spring cover plate and then releasing the compression tool;
after all the locking pieces are pre-tightened, torque is applied to fasten all the locking pieces.
According to one embodiment of the invention, the step of assembling the locking spring guide post and the locking spring cover plate comprises: and the end with the thread of the locking spring guide post penetrates through the central hole of the locking spring cover plate, and the threaded end of the locking spring guide post is screwed tightly by using a threaded fastener, so that the assembled locking spring guide post and the locking spring cover plate are fastened together.
According to one embodiment of the invention, the step of passing the threaded end of the locking spring guide through the central hole of the locking spring cover plate comprises: and coating sealant in the central hole and on the outer end surface of the central hole so as to seal the joint of the locking spring guide post and the locking spring cover plate.
According to an embodiment of the present invention, before the step of placing the locking spring into the upper counterbore of the locking pin, the method further comprises: and a sealing ring is put into the end face, facing the shaft box body, of the locking spring cover plate in advance.
According to one embodiment of the invention, the compression tool comprises a support, wherein a pressing mechanism is arranged at the top of the support, and a locking pin positioning part is arranged at the bottom of the support;
the step of placing the locking spring into the upper counterbore of the locking pin further comprises positioning the lower portion of the locking pin in the locking pin positioning portion.
According to an embodiment of the present invention, the step of compressing downward from the upper end of the locking spring cover plate by using a compression tool further includes: and utilizing the pressing mechanism to compress downwards from the upper end of the locking spring cover plate.
According to one embodiment of the invention, the locking spring cover plate comprises an end cover and a cylindrical shell extending along one side of the outer periphery of the end cover, an annular groove is formed in the end face of the cylindrical shell, the sealing ring is installed in the annular groove, and when the locking spring cover plate is attached to the axle box body, the sealing ring is pressed between the locking spring cover plate and the axle box.
According to one embodiment of the present invention, the length of the locking spring guide post is greater than that of the cylindrical housing, and a plurality of threaded holes for mounting the locking member are formed around the end cap.
According to one embodiment of the invention, the support comprises a vertical support rod, a horizontal ejector rod horizontally extending to one side along the upper end of the vertical support rod, and a horizontal base horizontally extending to the same side of the horizontal ejector rod along the lower end of the vertical support rod, wherein the pressing mechanism comprises a hydraulic cylinder vertically and downwards arranged along the horizontal ejector rod, and an oil pump arranged at the top of the horizontal ejector rod and connected with an oil way of the hydraulic cylinder;
the locking pin positioning part is arranged on the horizontal base, and a V-shaped groove matched with the shape of the lower end of the locking pin is formed in the locking pin positioning part.
The embodiment of the second aspect of the invention also provides an axle box assembling tool for a track-variable wheel pair, which comprises: the compression tool comprises a support, a pressing mechanism is arranged at the top of the support, and a locking pin positioning part is arranged at the bottom of the support; the support comprises a vertical supporting rod, a horizontal ejector rod horizontally extending to one side along the upper end of the vertical supporting rod and a horizontal base horizontally extending to the same side of the horizontal ejector rod along the lower end of the vertical supporting rod, and the pressing mechanism comprises a hydraulic cylinder vertically and downwards arranged along the horizontal ejector rod and an oil pump arranged at the top of the horizontal ejector rod and connected with an oil way of the hydraulic cylinder;
the locking pin positioning part is arranged on the horizontal base, and a V-shaped groove matched with the shape of the lower end of the locking pin is formed in the locking pin positioning part.
According to one embodiment of the invention, one side of the vertical supporting rod is also provided with a reinforcing supporting rod which is respectively connected with the horizontal top rod and the horizontal base.
One or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
according to the method for assembling the axle box of the variable-gauge wheel pair, the axle box and the locking spring are conveniently assembled according to the structural change characteristics of the axle box of the variable-gauge wheel pair, the assembling parts are not damaged, and the pre-pressing process of the device is simple, convenient and quick.
The variable-gauge wheel pair axle box assembling tool is simple in structure and easy and convenient to operate, and can facilitate assembling of the axle box and the locking spring.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a locking spring assembled by using a variable-gauge wheel pair axle box assembly tool according to an embodiment of the invention;
FIG. 2 is an unassembled structural schematic diagram of an axle box of a track-variable wheelset according to an embodiment of the invention;
fig. 3 is a schematic perspective structure diagram of an axle box assembling tool for a variable-gauge wheel pair according to an embodiment of the present invention;
fig. 4 is a schematic front view of an axle box assembling tool for a variable-gauge wheel pair according to an embodiment of the present invention.
Reference numerals:
1: locking the spring cover plate; 2: locking the spring guide post; 3: a locking spring; 4: a locking pin; 41: a counter bore; 5: a shaft box body; 6: a support; 61: a vertical strut; 62: a horizontal ejector rod; 63: a horizontal base; 63-1: a V-shaped groove; 64: a reinforcing strut; 7: a hold-down mechanism; 71: an oil pump; 72: and a hydraulic cylinder.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The track-variable wheel is centered, the locking mechanisms are respectively arranged at the outer sides of the wheels and positioned in axle box bodies at two ends of an axle, and each locking mechanism comprises an inner sleeve, a rolling bearing, an outer sleeve and a locking pin; inner skleeve, antifriction bearing and outer sleeve closely cup joint in proper order from inside to outside and form a whole that slides, and adopt sealedly at the holistic both ends that slide, and when the train normal operating, the inner skleeve and antifriction bearing's inner circle rotates along with the wheel, and antifriction bearing's outer lane and outer sleeve keep relatively fixed, the inner skleeve with axletree clearance fit, the inner skleeve orientation the one end of wheel is extended axle box body and with the wheel passes through fasteners such as bolts fastening connection, and the outer sleeve sets up the retaining ring with antifriction bearing clearance fit and at outer sleeve's both ends to fixed outer sleeve and antifriction bearing's relative position, the outer sleeve with axle box body's internal surface clearance fit, the whole that slides can be. The relative both sides outside locking mechanism's the outer sleeve are equipped with respectively along outer sleeve axial extension's boss, follow the length direction interval of boss is equipped with a plurality of recesses, the inner wall of axle box be equipped with the indent cambered surface (not shown in the figure) of recess one-to-one, the fitting pin is arranged in inserting the locking space that recess and indent cambered surface were injectd to can switch between a plurality of locking spaces under the exogenic action, in order to realize the wheel and alternate the gauge. Specifically, when the locking pin is inserted into the locking space, one part of the locking pin is located in the groove, the other part of the locking pin is attached to the concave arc surface, and the outer sleeve is fixed relative to the axle box body to achieve locking.
In order to realize the up-and-down movement of the locking pin and the locking or unlocking, a locking spring is arranged in the locking pin.
However, the pre-pressure of the locking spring is relatively large in the actual installation process, and the axle box body can be completely assembled by pre-pressing, so that:
in a first aspect, an embodiment of the present invention provides a method for assembling an axle box of a variable-gauge wheel pair, including the following steps:
referring to fig. 1 to 4, a locking spring guide post 2 and a locking spring cover plate 1 are assembled, the locking pin 4 includes a locking pin 4 main body and a locking spring cover plate 1 covering the locking pin 4 main body, an installation and deformation space of the locking spring 3 is reserved between the locking spring cover plate 1 and the locking pin 4 main body, and the locking spring guide post 2 is used for guiding the locking spring 3 when deforming, so as to ensure that the locking spring 3 is compressed or released along a specific direction.
The locking pin 4 main part is equipped with the mounting hole of locking spring 3, and this mounting hole is the blind hole.
Referring to fig. 2, the locking spring 3 is placed in the upper counter bore 41 of the locking pin 4, the locking spring guide post 2 is inserted into the locking spring 3, specifically, a central through hole is formed in the axial direction of the locking spring 3, and the locking spring guide post 2 is inserted into the central through hole of the locking spring 3; the "upper counterbore 41 of the lock pin 4" is referred to as the "mounting hole of the body of the lock pin 4" herein.
The compression tool is used for compressing downwards from the upper end of the locking spring cover plate 1, the direction indicated by an arrow in fig. 2 is a force application direction, until the locking spring cover plate 1 is tightly attached to the shaft box body 5, at the moment, the locking spring guide post 2 is inserted into the upper counter bore 41 of the locking pin 4, when the locking pin 4 is lifted upwards by external force from the lower part, the locking spring 3 is compressed and moves upwards along the space between the locking spring guide post 2 and the counter bore 41, and the moving accuracy of the locking spring 3 is ensured, as shown in fig. 1.
In order to ensure that the spring cannot bounce after being compressed in place, at least installing and pre-tightening the locking piece at the diagonal position of the locking spring cover plate 1 and then releasing the compression tool for preliminary fixation;
after all the locking parts are pre-tightened, the position of the locking spring cover plate 1 is well fixed, and all the locking parts are fastened by applying torque to ensure that the locking parts are installed in place.
According to the embodiment of the invention, the assembling method is designed according to the structural change characteristics of the axle box of the track-variable wheel pair, so that the axle box and the locking spring 3 can be conveniently assembled, the assembling parts are not damaged, and the prepressing process of the device is simple, convenient and quick.
According to an embodiment of the present invention, the step of assembling the locking spring guide post 2 and the locking spring cover plate 1 comprises: and the end with the thread of the locking spring guide post 2 penetrates through the central hole of the locking spring cover plate 1, and a threaded fastener such as a nut is screwed on the threaded end of the locking spring guide post 2 to fasten the assembled locking spring guide post 2 and the locking spring cover plate 1 together, so that the assembly of the locking spring guide post 2 and the locking spring cover plate 1 is completed.
According to an embodiment of the present invention, the step of penetrating the center hole of the locking spring cover plate 1 with the threaded end of the locking spring guide post 2 comprises: and coating a sealant in the central hole and on the outer end surface of the central hole to seal the joint of the locking spring guide post 2 and the locking spring cover plate 1, so as to ensure that external dust, impurities and the like cannot enter the inner space of the locking pin 4 and ensure the service life and reliability of the locking pin 4.
According to an embodiment of the present invention, before the step of placing the locking spring 3 into the upper counterbore 41 of the locking pin 4, the method further comprises: the sealing ring is placed in advance on the end face, facing the axle box body 5, of the locking spring cover plate 1 to seal the space between the end faces of the locking spring cover plate 1 and the axle box body 5, so that external dust, impurities and the like are prevented from entering the inner space of the locking pin 4, and the service life and the reliability of the locking pin 4 are guaranteed.
In a specific embodiment of the present invention, as shown in fig. 3 and 4, the compression tool includes a support 6, a pressing mechanism 7 is disposed on the top of the support 6, and a positioning portion of a locking pin 4 is disposed on the bottom of the support;
the step of putting the locking spring 3 into the upper counter bore 41 of the locking pin 4 further comprises the step of positioning the lower part of the locking pin 4 in the positioning part of the locking pin 4, and the locking pin 4 is positioned first, so that downward pressure is conveniently applied from the upper part of the locking pin 4 on the next step, the locking pin 4 is ensured not to deviate in the force application process, and the stability of the locking pin 4 in the installation process is ensured.
According to an embodiment of the present invention, the step of compressing downward from the upper end of the locking spring cover plate 1 by using a compression tool further includes: utilize hold-down mechanism 7 compresses down from locking spring apron 1 upper end, hold-down mechanism 7 direct and the top contact of locking spring apron 1, after the position adjustment directly exert pressure can, convenient operation.
According to a specific embodiment of the invention, the locking spring cover plate 1 comprises an end cover and a cylindrical shell extending along one side of the outer periphery of the end cover to form a cap-shaped structure, an annular groove is formed in the end face of the cylindrical shell, the seal ring is installed in the annular groove, part of the seal ring is exposed out of the annular groove, when the locking spring cover plate 1 is tightly attached to the axle box body 5, the seal ring is tightly pressed between the locking spring cover plate 1 and the axle box to ensure the sealing effect between the locking spring cover plate 1 and the axle box, so that the locking spring cover plate 1 is not in rigid contact with the axle box, the sealing effect is good, and the seal ring can be a rubber ring, a silica gel washer and the like.
According to an embodiment of the present invention, the length of the locking spring guide post 2 is greater than the length of the cylindrical housing, that is, the locking spring guide post 2 extends out of the cylindrical housing from the end cap, so that the locking spring guide post 2 can be inserted into the counterbore 41 of the locking pin 4 after the locking spring cover plate 1 is contacted with the shaft housing 5.
The periphery of the end cover is provided with a plurality of threaded holes for installing the locking pieces, for example, the threaded holes can be respectively formed in four corners of the periphery of the end cover, and uniform pre-tightening force can be conveniently applied.
According to an embodiment of the present invention, the bracket 6 includes a vertical support rod 61, a horizontal top rod 62 horizontally extending to one side along the upper end of the vertical support rod 61, and a horizontal base 63 horizontally extending to the same side of the horizontal top rod 62 along the lower end of the vertical support rod 61, so as to form a C-shaped structure, the pressing mechanism 7 includes a hydraulic cylinder 72 vertically downward arranged along the horizontal top rod 62, and an oil pump 71 arranged at the top of the horizontal top rod 62 and connected to the oil path of the hydraulic cylinder 72, the hydraulic cylinder 72 is supplied with hydraulic oil through the oil pump 71, a fixing hole can be arranged at one end of the horizontal top rod 62 far from the vertical support rod 61, the cylinder body of the hydraulic cylinder 72 is installed and fixed in the fixing hole, and the telescopic end of the hydraulic cylinder 72 is vertically downward for being arranged on the locking spring cover plate 1 to provide downward compression force for the.
The positioning part of the locking pin 4 is arranged on the horizontal base 63, the positioning part of the locking pin 4 is provided with a V-shaped groove 63-1 matched with the shape of the lower end of the locking pin 4, a V-shaped bulge is formed at the bottom of the locking pin 4, and the locking pin 4 can be positioned by inserting the V-shaped bulge into the V-shaped groove 63-1, so that the locking pin 4 cannot deviate when receiving downward pressure, and the stability of the installation process is ensured.
In a second aspect, an embodiment of the present invention further provides a variable-gauge wheel set and axle box assembling tool, including: the compression frock, the compression frock includes support 6, and support 6 mainly forms by square hollow steel tube welding, and of course, the steel tube welding that also can select other shapes forms, can guarantee joint strength through the welding, and of course, connecting pieces such as bolt connect also can satisfy the user demand. The top of the bracket 6 is provided with a pressing mechanism 7, and the bottom is provided with a positioning part of the locking pin 4; the support 6 comprises a vertical support rod 61, a horizontal top rod 62 horizontally extending to one side along the upper end of the vertical support rod 61, and a horizontal base 63 horizontally extending to the same side of the horizontal top rod 62 along the lower end of the vertical support rod 61, and the pressing mechanism 7 comprises a hydraulic cylinder 72 vertically and downwardly arranged along the horizontal top rod 62 and an oil pump 71 arranged at the top of the horizontal top rod 62 and connected with the hydraulic cylinder 72 in an oil way; the stroke direction of the hydraulic cylinder 72 is vertically downward, and the hydraulic cylinder is pushed by the pressure of the oil pump 71 to provide downward pressure, and the stroke is satisfied that the locking spring 3 is compressed to the lowest position. To ensure stability of the pushing process, the head of the hydraulic cylinder 72 may transmit pressure to the locking spring 3 through a transition tool.
The positioning part of the locking pin 4 is arranged on the horizontal base 63, the positioning part of the locking pin 4 is provided with a V-shaped groove 63-1 matched with the shape of the lower end of the locking pin 4, and in the actual operation process, the locking pin 4 is placed in the built-in V-shaped groove 63-1 so as to pre-press the locking spring 3.
According to an embodiment of the present invention, a reinforcing strut 64 is further provided at one side of the vertical strut 61 to be connected to the horizontal top bar 62 and the horizontal base 63, respectively, so as to enhance the deformation resistance.
In the practical application process of this embodiment, after the assembly fixture is used, the support 6 hooks the locking pin 4 from the lower part, and the pressing mechanism 7 presses the locking spring 3 downwards from the upper part. The assembling process of the variable-track-pitch axle box and the locking spring 3 is simplified, the locking spring 3 is pre-pressed, after the locking spring cover plate 1 is contacted with the axle box body 5, all the bolts are assembled at last, the locking pin 4 is installed when the locking spring cover plate 1 is installed on the axle box body 5, and the assembling process is stable, reliable and simple.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (11)
1. A method for assembling an axle box of a track-variable wheel pair is characterized by comprising the following steps:
assembling a locking spring guide post and a locking spring cover plate;
placing a locking spring into a counter bore at the upper part of the locking pin, and inserting a guide column of the locking spring into the locking spring;
compressing downwards from the upper end of the locking spring cover plate by using a compression tool until the locking spring cover plate is tightly attached to the axle box body;
at least installing and pre-tightening a locking piece at the diagonal position of the locking spring cover plate and then releasing the compression tool;
after all the locking pieces are pre-tightened, torque is applied to fasten all the locking pieces.
2. The method of assembling a variable-gauge wheel-pair axlebox of claim 1, wherein said step of assembling a locking spring guide post with a locking spring cover plate comprises: and the end with the thread of the locking spring guide post penetrates through the central hole of the locking spring cover plate, and the threaded end of the locking spring guide post is screwed tightly by using a threaded fastener, so that the assembled locking spring guide post and the locking spring cover plate are fastened together.
3. The method of assembling a variable-gauge wheelset axlebox of claim 2 wherein the step of passing the threaded end of the locking spring guidepost through the central aperture of the locking spring cover plate comprises: and coating sealant in the central hole and on the outer end surface of the central hole so as to seal the joint of the locking spring guide post and the locking spring cover plate.
4. The method for assembling a variable-gauge wheel-pair axlebox of claim 1, wherein prior to the step of placing the locking spring into the upper counterbore of the locking pin, further comprising: and a sealing ring is put into the end face, facing the shaft box body, of the locking spring cover plate in advance.
5. The method for assembling an axle box with a variable-gauge wheel pair according to claim 1, wherein the compression tool comprises a bracket, a pressing mechanism is arranged at the top of the bracket, and a locking pin positioning part is arranged at the bottom of the bracket;
the step of placing the locking spring into the upper counterbore of the locking pin further comprises positioning the lower portion of the locking pin in the locking pin positioning portion.
6. The method for assembling a variable-gauge wheel-pair axle box according to claim 5, wherein the step of compressing downward from the upper end of the locking spring cover plate by using a compression tool further comprises the steps of: and utilizing the pressing mechanism to compress downwards from the upper end of the locking spring cover plate.
7. The method of assembling a variable-gauge wheel-pair axlebox according to claim 4, wherein the locking spring cover includes an end cap and a cylindrical housing extending along an outer circumferential side of the end cap, an end surface of the cylindrical housing having an annular groove, the seal ring being mounted in the annular groove, the seal ring being compressed between the locking spring cover and the axlebox when the locking spring cover is in close contact with the axlebox.
8. The method of assembling a variable-gauge wheel-pair axlebox of claim 7, wherein the locking spring guide post has a length greater than a length of the cylindrical housing, and wherein the end cap has a plurality of threaded holes formed around a periphery thereof for receiving the locking member.
9. The variable-track wheel-pair axle box assembling method according to claim 5, wherein the bracket comprises a vertical strut, a horizontal top rod horizontally extending to one side along the upper end of the vertical strut, and a horizontal base horizontally extending to the same side of the horizontal top rod along the lower end of the vertical strut, and the pressing mechanism comprises a hydraulic cylinder vertically arranged downwards along the horizontal top rod and an oil pump arranged at the top of the horizontal top rod and connected with an oil circuit of the hydraulic cylinder;
the locking pin positioning part is arranged on the horizontal base, and a V-shaped groove matched with the shape of the lower end of the locking pin is formed in the locking pin positioning part.
10. The utility model provides a become gauge wheel pair axle box equipment frock which characterized in that includes: the compression tool comprises a support, a pressing mechanism is arranged at the top of the support, and a locking pin positioning part is arranged at the bottom of the support; the support comprises a vertical supporting rod, a horizontal ejector rod horizontally extending to one side along the upper end of the vertical supporting rod and a horizontal base horizontally extending to the same side of the horizontal ejector rod along the lower end of the vertical supporting rod, and the pressing mechanism comprises a hydraulic cylinder vertically and downwards arranged along the horizontal ejector rod and an oil pump arranged at the top of the horizontal ejector rod and connected with an oil way of the hydraulic cylinder;
the locking pin positioning part is arranged on the horizontal base, and a V-shaped groove matched with the shape of the lower end of the locking pin is formed in the locking pin positioning part.
11. The variable-gauge wheel-pair axle box assembly tool according to claim 10, wherein a reinforcing strut connected to the horizontal carrier rod and the horizontal base is further disposed on one side of the vertical strut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911204043.0A CN111069894A (en) | 2019-11-29 | 2019-11-29 | Variable-gauge wheel set axle box assembling method and assembling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911204043.0A CN111069894A (en) | 2019-11-29 | 2019-11-29 | Variable-gauge wheel set axle box assembling method and assembling tool |
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| CN111069894A true CN111069894A (en) | 2020-04-28 |
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| CN109131410A (en) * | 2018-10-16 | 2019-01-04 | 中车资阳机车有限公司 | The pressure mounting of the spring device for having compound backstop function |
| CN209682102U (en) * | 2019-08-15 | 2019-11-26 | 成都中车四方轨道车辆有限公司 | A kind of novel track train journal box spring group pre-compression device |
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| CN106001900A (en) * | 2016-06-20 | 2016-10-12 | 江苏科技大学 | Single shoulder stirring friction head in automatic filling form |
| CN205733723U (en) * | 2016-06-29 | 2016-11-30 | 绍兴华越工具有限公司 | Pressing machine for electric drill rotary head |
| CN205968112U (en) * | 2016-08-25 | 2017-02-22 | 苏州金诚轴承有限公司 | Full-automatic bearing press-fitting device |
| CN109094600A (en) * | 2018-07-25 | 2018-12-28 | 中车青岛四方机车车辆股份有限公司 | A kind of journal box spring is pre-assembled to be set |
| CN109131410A (en) * | 2018-10-16 | 2019-01-04 | 中车资阳机车有限公司 | The pressure mounting of the spring device for having compound backstop function |
| CN209682102U (en) * | 2019-08-15 | 2019-11-26 | 成都中车四方轨道车辆有限公司 | A kind of novel track train journal box spring group pre-compression device |
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Application publication date: 20200428 |
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