CN112046526A - Connecting method and structure of anti-side-rolling torsion bar connecting pin and end part of bent torsion bar - Google Patents
Connecting method and structure of anti-side-rolling torsion bar connecting pin and end part of bent torsion bar Download PDFInfo
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- CN112046526A CN112046526A CN202010834846.0A CN202010834846A CN112046526A CN 112046526 A CN112046526 A CN 112046526A CN 202010834846 A CN202010834846 A CN 202010834846A CN 112046526 A CN112046526 A CN 112046526A
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- connecting pin
- torsion bar
- fastening
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- sleeve joint
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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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
Abstract
The invention discloses a connecting method and a connecting structure of an anti-rolling torsion bar connecting pin and the end part of a torsion bar, wherein the middle part of the connecting pin is provided with a positioning flange, the end part of the front end of the connecting pin is a fastening end with external threads, the fastening end is provided with a fastening nut, a sleeving section is arranged between the fastening end and the positioning flange, the end part of the torsion bar is provided with a sleeving hole, the sleeving section is cylindrical, the sleeving hole is a cylindrical hole, the sleeving section is sleeved in the sleeving hole, and the end part of the torsion bar is pressed between the fastening nut of the connecting pin and the positioning flange by utilizing the pretightening force generated by screwing the fastening nut on the fastening end during connection. The outer peripheral face of the sleeve joint section of the connecting pin is provided with a gradually convex edge which gradually protrudes outwards from front to back, and during connection, the gradually convex edge is pressed on the inner peripheral face of the sleeve joint hole. The connecting pin has the advantages that the risk that the connecting pin is separated from the cylindrical hole at the end part of the crankrod is eliminated; the disassembly is easy during maintenance; enough pretightening force can be always kept between the connecting nut and the connecting end of the connecting pin to avoid loosening.
Description
Technical Field
The invention relates to an anti-side-rolling torsion bar, in particular to a connecting method and a connecting structure of a connecting pin of the anti-side-rolling torsion bar and the end part of a bent torsion bar, and belongs to the technical field of rail transit.
Background
An anti-side-rolling torsion bar system is called a torsion bar system for short, is a component for improving the anti-side-rolling rigidity of a rail transit vehicle in the running process of the vehicle and is used for inhibiting the side rolling of a vehicle body under the conditions of vehicle turning, side wind and the like.
In the anti-rolling torsion bar system, the conical section of the connecting pin in the lower node of the vertical connecting rod is matched with the end part conical hole of the bending torsion bar (or torsion arm) by adopting a conical surface. Specifically, a connecting part with external threads is arranged at the end part of the conical section of the connecting pin, the conical section of the connecting pin is inserted into a conical hole at the end part of the crankrod, and the connecting part is fastened and connected by a nut after extending out of the small end of the conical hole. The other end of the connecting pin is connected with the vertical connecting rod through a metal ball joint. Such a connection has the following two extreme problems:
firstly, when the train carriage in operation rolls, strong rolling force acts on one end of the connecting pin through the vertical connecting rod and acts on the end part of the bending rod through the conical section of the connecting pin. Because the outer conical surface of the conical section of the connecting pin and the inner conical surface of the conical hole at the end part of the torsion bar are both matched inclined surfaces, the strong acting force is actually acted on the inclined surface of the conical hole at the end part of the torsion bar through the inclined surface of the conical section of the connecting pin, a component force which enables the end part of the torsion bar to be separated out along the axial direction of the connecting pin can be generated according to the decomposition of the force, the component force is completely required to be overcome by the pretightening force between the connecting parts of the nuts and the conical sections of the connecting pins with external threads, and the component force is very large, so that the risk that the conical section of the connecting pin is separated out from the conical hole at the end part of the torsion bar.
Secondly, in order to prevent the end part of the cranked rod from being separated from the connecting pin in the axial direction, the nut is in high-strength fit with the connecting part of the conical section of the connecting pin and provides strong pretightening force for the conical surface fit, so that the whole outer conical surface of the conical section of the connecting pin is tightly attached to the whole inner conical surface of the conical hole at the end part of the cranked rod, and the connecting pin is extremely difficult to separate from the connecting pin during maintenance.
Disclosure of Invention
The technical problems to be solved by the invention are mainly as follows: the connecting pin is in conical surface fit connection with the cranked rod, so that the risk that the connecting pin is separated from the tapered hole at the end part of the cranked rod due to component force which is generated by the action of strong side rolling force and is separated along the axial direction of the connecting pin is caused, and the problem that the connecting pin is difficult to separate from the tapered hole at the end part of the cranked rod manually during overhauling is solved.
Aiming at the problems, the technical scheme provided by the invention is as follows:
a connecting method for connecting an anti-side-rolling torsion bar connecting pin and the end part of a torsion bar is characterized in that a sleeving section of the connecting pin and a sleeving hole at the end part of the torsion bar are changed from conical surface matching and fastening by a fastening piece into cylindrical matching and fastening by adopting a fastening measure, and a gap is reserved between the sleeving section and the sleeving hole, so that the sleeving section can be inserted into the sleeving hole or separated from the sleeving hole when the fastening measure is not taken.
Furthermore, in the method for connecting the anti-rolling torsion bar connecting pin and the end part of the torsion bar, the fastening is performed by adopting a fastening measure, and the method comprises the steps of screwing a fastening nut at the fastening end of the connecting pin extending out of the sleeving hole at the end part of the torsion bar in a thread matching manner, and axially fastening the connecting pin and the torsion bar by utilizing the pretightening force generated by screwing the fastening nut.
Furthermore, the fastening is carried out by adopting a fastening measure, a matched expansion structure is arranged between the inner surface of the sleeve joint hole at the end part of the cranked rod and the outer surface of the sleeve joint section of the connecting pin, and the sleeve joint section of the connecting pin and the sleeve joint hole at the end part of the cranked rod are radially fastened through the pre-tightening structure under the action of pre-tightening force generated by screwing the fastening nut.
According to the connecting method of the anti-rolling torsion bar connecting pin and the end part of the torsion bar, a structure which gradually protrudes outwards from the front to the back is arranged on the outer peripheral surface of the sleeving section of the connecting pin according to the hole direction, and the sleeving section of the connecting pin is forced to gradually expand tightly with the sleeving hole in the sleeving hole at the end part of the torsion bar through the gradually protruding structure under the action of the continuously enhanced axial pre-tightening force of the fastening nut by utilizing the elastic deformation characteristic of materials.
A connecting structure designed according to the connecting method of the anti-side-rolling torsion bar connecting pin and the end part of the torsion bar is characterized in that a positioning flange is arranged in the middle of the connecting pin, the end part of the front end of the connecting pin is a fastening end with external threads, a fastening nut is arranged on the fastening end, a sleeving section is arranged between the fastening end and the positioning flange, a sleeving hole is formed in the end part of the torsion bar, the sleeving section is cylindrical, the sleeving hole is a cylindrical hole, the sleeving section is sleeved in the sleeving hole, intervals exist between the outer peripheral surface of the sleeving section and the inner peripheral surface of the sleeving hole, and during connection, the end part of the torsion bar is pressed between the fastening nut of the connecting pin and the positioning flange by means of pretightening force generated by screwing the fastening nut.
Furthermore, the outer peripheral surface of the sleeving section of the connecting pin is provided with a gradually convex edge which gradually protrudes outwards from front to back, and during connection, the gradually convex edge presses the inner peripheral surface of the sleeving hole.
Further, the cup joint downthehole internal surface of turn-buckle rod tip is equipped with the positive indent of caving gradually backward by preceding, gradually the bead, during the connection, gradually the bead presses at the tank bottom surface in positive indent.
Furthermore, the outer peripheral surface of the sleeve joint section of the connecting pin is provided with a conical edge which is gradually protruded outwards from front to back and provided with a circular outer conical surface, the inner surface of the sleeve joint hole at the end part of the cranked rod is provided with a conical groove which is gradually sunken and provided with a circular inner conical surface from front to back, and the diameter of the circular outer conical surface of the conical edge is larger than that of the circular inner conical surface of the conical groove at the same section position.
Furthermore, the outer peripheral surface of the sleeving section of the connecting pin is provided with a mounting groove for placing a conical edge, the base part of the conical edge is provided with an embedding part matched with the groove shape and size of the mounting groove, and the embedding part of the conical edge is mounted in the mounting groove.
Further, the tapered slot is arranged at the top or the bottom of the inner wall of the sleeving hole.
The invention has the advantages that:
1. the connecting pin is matched with the end part of the cranked rod by adopting the cylindrical hole, so that the factor generating axial pull-out component force is completely eliminated, and the risk of pulling the connecting pin out of the cylindrical hole at the end part of the cranked rod is also eliminated.
2. Because the cylindrical end of the connecting pin is in small clearance fit with the cylindrical hole at the end part of the torsion bar, the connecting pin is easy to disassemble during maintenance.
3. Because the tapered groove is adopted to cooperate between the outer peripheral surface of the cylindrical end of the connecting pin and the inner peripheral surface of the cylindrical hole at the end part of the torsion bar, the connecting pin is effectively prevented from rotating in the cylindrical hole at the end part of the torsion bar, and more importantly, enough pretightening force can be always kept between the connecting end of the connecting nut and the connecting pin to avoid loosening.
Drawings
FIG. 1 is a schematic perspective view of a disassembled connecting structure between a vertical connecting rod and an end of a torsion rod according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a gradually protruding rib provided in the socket joint section of the connecting pin in the first and second embodiments;
FIG. 3 is a perspective view of an end of a torsion bar according to an embodiment;
fig. 4 is a schematic perspective view of a positive pressure groove formed in an inner wall of the socket hole according to the second embodiment;
fig. 5 is a schematic perspective view of a tapered edge provided in the socket joint section according to the third embodiment;
FIG. 6 is a schematic perspective view of a tapered edge of an insert portion of a base strip according to a third embodiment;
fig. 7 is a schematic perspective view illustrating the installation groove formed in the socket joint section according to the first, second, and third embodiments;
fig. 8 is a schematic perspective view of a tapered groove provided in a socket hole according to a third embodiment;
fig. 9 is a perspective view of an endoscope with a tapered slot in a socket hole according to the third embodiment.
In the figure: 1. a vertical connecting rod; 2. a connecting pin; 21. a sleeving section; 22. gradually convex edges; 23. a tapered edge; 231. an insertion section; 24. mounting grooves; 25. a positioning flange; 26. a fastening end; 27. fastening a nut; 3. bending the end of the torsion bar; 31. sleeving a hole; 32. a positive pressure groove; 33. and (4) a tapered groove.
Detailed Description
The invention is further described with reference to the following examples and figures:
as shown in fig. 1, a method for connecting an anti-rolling torsion bar connecting pin and an end of a torsion bar is to change a socket joint section 21 of the connecting pin 2 and a socket joint hole 31 of an end 3 of the torsion bar from conical surface fit fastening by a fastener into cylindrical fit fastening by a fastening measure. Namely, the socket joint section 21 is changed to a cylindrical shape, and the socket joint hole 31 is changed to a cylindrical hole. When the other end of the connecting pin 2 is subjected to a force perpendicular to the axial lead of the cylindrical sleeve hole 31, a component force which is separated outwards along the axial lead of the sleeve hole 31 cannot be generated, and the adopted fastening measures do not need to provide extra pre-tightening force for the separated component force. A gap is left between the socket joint section 21 and the socket joint hole 31, so that the socket joint section 21 can be inserted into the socket joint hole 31 or pulled out from the socket joint hole 31 before or after the fastening measures are not taken or released. Here, the gap between the socket joint section 21 and the socket joint hole 31 is actually very small, and it is difficult for the connecting pin 2 to be inserted into the socket joint hole 31, so that after the connecting pin 2 is inserted into the socket joint hole 31, the non-precision detection device cannot observe the shake of the connecting pin 2 in the socket joint hole 31.
In conclusion, the connecting pin 2 is matched with the end part 3 of the torsion bar by adopting the cylindrical hole, so that the factor generating axial pull-out component force is completely eliminated, and the risk that the connecting pin 2 is pulled out from the cylindrical hole of the end part 3 of the torsion bar is eliminated; because the cylindrical end of the connecting pin 2 is in small clearance fit with the cylindrical hole of the end part 3 of the torsion bar, the connecting pin is easy to disassemble during maintenance.
The fastening by adopting the fastening measure comprises the steps of screwing a fastening nut 27 in a thread fit mode at a fastening end 26 of the connecting pin 2 extending out of a sleeving hole 31 of the end part 3 of the cranked rod, and fastening the connecting pin 2 and the cranked rod axially by utilizing the pretightening force generated by screwing the fastening nut 27. The middle part of the connecting pin 2 has a positioning flange 25 with a diameter larger than that of the cylindrical socket section 21, and the method is implemented by tightly clamping the end 3 of the torsion bar between the fastening nut 27 and the positioning flange 25 by using the fastening nut 27, so as to realize the fastening connection of the connecting pin 2 and the torsion bar.
As shown in fig. 1, 2 and 3, the fastening by the fastening means further includes a matched expansion structure disposed between the inner surface of the sleeve hole 31 of the end portion 3 of the torsion bar and the outer surface of the sleeve section 21 of the connecting pin 2, and the sleeve section 21 of the connecting pin 2 and the sleeve hole 31 of the end portion 3 of the torsion bar are fastened radially by the pre-tightening structure under the pre-tightening force generated by screwing the fastening nut 27. It will be understood that it is not sufficient to effect a secure connection of the connecting pin 2 to the torsion bar by merely clamping the torsion bar end 3 between the clamping nut 27 and the stop flange by means of the clamping nut 27, but it is also necessary to obtain a radial tightening force between the socket section 21 of the connecting pin 2 and the socket opening 31 of the torsion bar end 3.
The method for obtaining the radial fastening force between the sleeve section 21 of the connecting pin 2 and the sleeve hole 31 of the end portion 3 of the torsion bar is to arrange a structure which gradually protrudes outwards from the front to the back on the outer peripheral surface of the sleeve section 21 of the connecting pin 2 according to the hole direction, and to utilize the elastic deformation characteristic of the material, under the action of the continuously strengthened axial pre-tightening force of the fastening nut 27, the gradually protruding structure forces the sleeve section 21 of the connecting pin 2 to gradually expand with the sleeve hole 31 in the sleeve hole 31 of the end portion 3 of the torsion bar.
Example one
As shown in fig. 1, a connecting structure designed by a connecting method of an anti-roll torsion bar connecting pin and an end portion of a torsion bar, wherein a positioning flange 25 is arranged in the middle of a connecting pin 2, a fastening end 26 with an external thread is arranged at the end portion of the front end of the connecting pin 2, a fastening nut is arranged on the fastening end 26, a socket section 21 is arranged between the fastening end 26 and the positioning flange 25, a socket hole 31 is arranged at the end portion 3 of the torsion bar, the socket section 21 is cylindrical, the socket hole 31 is a cylindrical hole, the socket section 21 is sleeved in the socket hole 31, an interval is arranged between the outer circumferential surface of the socket section 21 and the inner circumferential surface of the socket hole 31, and during connection, the end portion 3 of the torsion bar is pressed between the fastening nut of the connecting pin and the positioning flange 25 by using a pre-tightening force generated by the fastening nut.
The following is a further improvement.
As shown in fig. 1, 2 and 3, the outer peripheral surface of the socket section 21 of the connecting pin 2 is provided with a gradually protruding rib 22 which gradually protrudes outward from the front to the back, and the gradually protruding rib 22 presses the inner peripheral surface of the socket hole 31 during connection. Because the clearance between the outer peripheral surface of the socket joint section 21 and the inner peripheral surface of the socket joint hole 31 is very small, the height of the highest position of the convex gradually-protruding rib 22 is very small, and is almost difficult to distinguish by naked eyes, but the function of the convex gradually-protruding rib is very obvious, the convex gradually-protruding rib 22 can be pressed on the inner peripheral surface of the socket joint hole 31 more and more tightly under the pulling of continuously enhanced pretightening force when the fastening nut 27 is screwed in, and the outer peripheral surface of the other side of the socket joint section 21, which is symmetrical to the position of the gradually-protruding rib 22, and the inner peripheral surface of the socket joint hole 31 which is contacted with the convex gradually-protruding rib are pressed more and more tightly, so that the radial fastening between the socket joint section 21 and.
Example two
Referring to fig. 2 and 4, a connecting structure of a connecting method of an anti-roll torsion bar connecting pin and a torsion bar end is designed, which is different from the first embodiment in that a positive pressure groove 32 is formed on the inner surface of a sleeve hole 31 of the torsion bar end 3 from front to back, the gradually convex rib 22 is gradually depressed, and when the connecting structure is connected, the gradually convex rib 22 presses the groove bottom surface of the positive pressure groove 32. With this arrangement, the height of the gradually protruding rib 22 can be made higher, which is easier to process.
EXAMPLE III
As shown in fig. 5-9; a connecting structure designed by a connecting method of an anti-rolling torsion bar connecting pin and an end part of a bending torsion bar is different from the first embodiment and the second embodiment in that: the outer peripheral surface of the sleeve joint section 21 of the connecting pin 2 is provided with a tapered edge 23 which is gradually protruded outwards from front to back and has a circular outer conical surface, the inner surface of the sleeve joint hole 31 of the end part 3 of the cranked rod is provided with a tapered groove 33 which is gradually sunken and has a circular inner conical surface from front to back, and the diameter of the circular outer conical surface of the tapered edge 23 is larger than that of the circular inner conical surface of the tapered groove 33 at the same section position. In this arrangement, two side surfaces of the tapered edge 23 are attached to two side surfaces of the inner groove surface of the tapered groove 33, one of the functions is that the two side surfaces of the inner groove surface of the pressed tapered groove 33 are both obliquely oriented to the socket joint section 21, and the resultant force of the pressed component forces of the two side surfaces is directed to the axial lead of the socket joint section 21, that is, the socket joint section 21 is also pressed by the pressure from the inner surface of the socket joint hole 31, so that the radial fastening between the socket joint section 21 and the socket joint hole 31 is realized; the second function is that the two sides of the groove surface in the pressed tapered groove 33 can clamp the tapered edge 23, and the rotation of the connecting pin 2 in the sleeve hole 31 can be better limited.
The outer peripheral surface of the sleeve section 21 of the connecting pin 2 is provided with a mounting groove 24 for placing the tapered edge 23, the base of the tapered edge 23 is provided with an embedding part 231 matched with the groove shape and size of the mounting groove 24, and the embedding part 231 of the tapered edge 23 is mounted in the mounting groove 24. This is also advantageous because the tapered edge 23 interferes with the turning of the socket section 21, and it is easier to machine the tapered edge 23 separately from the socket section 21.
The tapered groove 33 is arranged at the top or the bottom of the inner wall of the sleeving hole 31, so that the stress on the inner wall of the sleeving hole 31 is just consistent with the vertical acting force applied by the vertical connecting rod 1 on the installation pin.
For the whole (embodiment one, two, three) scheme, there are the following points to be explained:
1. the radial fastening between the socket joint section 21 and the socket joint hole 31 is realized by the pressure generated between the gradually convex rib 22 or the tapered edge 23 and the inner wall of the socket joint hole 31, because the diameter of the cylindrical socket joint section 21 is smaller than that of the cylindrical socket joint hole 31, no radial interaction force, namely radial pressure, exists between the whole socket joint section 21 and the socket joint hole 31, and the pressure generated between the gradually convex rib 22 or the tapered edge 23 and the inner wall of the socket joint hole 31, when the pressure is not enough to make the material at the pressed part elastically deform, the contact pressed area is actually only a contact pressed line (because the diameter of the outer peripheral curved surface and the inner peripheral curved surface which are in contact pressed is not equal), when the pressure makes the material at the pressed part elastically deform, the contact pressed area is actually only a long and narrow contact pressed surface, compared with the prior art that the whole outer peripheral surface of the socket joint section 21 is in contact pressed with the whole inner peripheral surface of the, the contact pressure area is greatly reduced, which is very beneficial for the socket joint section 21 to be separated from the socket joint hole 31 during maintenance, see fig. 2 and 3, fig. 2 and 4, and fig. 5 and 8.
2. Since the outer peripheral surfaces of the tapered rib 22 and the tapered rib 23 are actually inclined surfaces, although the inclination of the inclined surfaces is very small, the force applied to the tapered rib 22 or the tapered rib 23 by the inner wall of the sleeving hole 31 is actually a force applied to the inclined surfaces, and the force has a component of outward pulling-out force which is opposite to the pre-tightening force provided by the fastening nut 27 on the fastening end 26 although the component is very small, which is very beneficial for maintaining the pre-tightening force of the fastening nut 27, see fig. 1, 2 and 3, 2 and 4, 5 and 8.
3. In order to facilitate the turning process of the socket section 21, the tapered rib 22 of the first and second embodiments may also be provided with a mounting groove 24 for mounting the tapered rib 22, and when the mounting groove 24 is provided on the socket section 21 of the first and second embodiments, the base of the tapered rib 22 also has an embedding portion 231 matching with the groove shape and size of the mounting groove 24, as shown in fig. 7.
The mounting groove 24 may have various shapes, depending on the practical and easy-to-manufacture, and the insertion portion 231 is required to be matched with the shape and size of the mounting groove 24.
4. Preferably, the tapered ribs 22 of the first and second embodiments are also pressed on the top or bottom of the inner wall of the receiving hole 31, so that the force applied to the inner wall of the receiving hole 31 is exactly the same as the vertical force applied to the vertical connecting rod 1 by the mounting pin, as shown in fig. 2 and 4.
It is clear that the above-described embodiments are only intended to illustrate the invention more clearly and are not to be considered as limiting the scope of protection covered by the invention, any modification of equivalent forms being considered as falling within the scope of protection covered by the invention.
Claims (10)
1. A connecting method of an anti-rolling torsion bar connecting pin and an end part of a bending torsion bar is characterized in that: the sleeve joint section (21) of the connecting pin (2) and the sleeve joint hole (31) of the end part (3) of the torsion bar are changed from conical surface matching and fastening by a fastening piece into cylindrical matching and fastening by adopting a fastening measure, and a gap is reserved between the sleeve joint section (21) and the sleeve joint hole (31), so that the sleeve joint section (21) can be inserted into the sleeve joint hole (31) or separated from the sleeve joint hole (31) when the fastening measure is not adopted.
2. The method of connecting an anti-roll torsion bar connection pin to an end of a torsion bar according to claim 1, wherein: the fastening by adopting the fastening measure comprises the steps that a fastening nut (27) is screwed at a fastening end (26) of the connecting pin (2) extending out of a sleeving hole (31) of the end part (3) of the cranked rod in a thread matching mode, and the connecting pin (2) and the cranked rod are fastened axially by utilizing pretightening force generated by screwing the fastening nut (27).
3. The method of connecting an anti-roll torsion bar connection pin to an end of a torsion bar according to claim 2, wherein: the fastening is carried out by adopting a fastening measure, a matched expansion structure is arranged between the inner surface of the sleeving hole (31) of the end part (3) of the torsion bar and the outer surface of the sleeving section (21) of the connecting pin (2), and the sleeving section (21) of the connecting pin (2) and the sleeving hole (31) of the end part (3) of the torsion bar are radially fastened through the pre-tightening structure under the action of pre-tightening force generated by screwing the fastening nut (27).
4. The method of connecting an anti-roll torsion bar connection pin to an end of a torsion bar according to claim 2, wherein: the outer peripheral surface of the sleeve joint section (21) of the connecting pin (2) is provided with a structure which gradually protrudes outwards from front to back according to the hole-in direction, and the sleeve joint section (21) of the connecting pin (2) is forced to gradually expand with the sleeve joint hole (31) in the sleeve joint hole (31) of the end part (3) of the cranked rod through the gradually protruding structure under the action of the continuously enhanced axial pre-tightening force of the fastening nut (27) by utilizing the elastic deformation characteristic of the material.
5. A connecting structure designed according to the connecting method of the anti-roll torsion bar connecting pin and the end portion of the torsion bar in claim 1, wherein the connecting pin (2) has a positioning flange (25) in the middle, the end portion of the front end of the connecting pin (2) is a fastening end (26) having an external thread, the fastening end (26) has a fastening nut thereon, a socket section (21) is provided between the fastening end (26) and the positioning flange (25), the end portion (3) of the torsion bar has a socket hole (31), and the connecting structure is characterized in that: the sleeve joint section (21) is cylindrical, the sleeve joint hole (31) is a cylindrical hole, the sleeve joint section (21) is sleeved in the sleeve joint hole (31), intervals exist between the outer peripheral surface of the sleeve joint section (21) and the inner peripheral surface of the sleeve joint hole (31), and during connection, the end portion (3) of the crankle rod is pressed between the fastening nut of the connecting pin and the positioning flange (25) by virtue of pretightening force generated by screwing the fastening nut on the fastening end (26).
6. The structure of claim 5, wherein: the outer peripheral surface of the sleeve joint section (21) of the connecting pin (2) is provided with a gradually convex rib (22) which gradually protrudes outwards from front to back, and during connection, the gradually convex rib (22) is pressed on the inner peripheral surface of the sleeve joint hole (31).
7. The structure of claim 6, wherein: the inner surface of a sleeve joint hole (31) of the end part (3) of the cranked rod is provided with a positive pressure groove (32) which is gradually sunken from front to back, the gradually convex edge (22) presses the bottom surface of the positive pressure groove (32) during connection.
8. The structure of claim 5, wherein: the outer peripheral face of the sleeve joint section (21) of the connecting pin (2) is provided with a conical edge (23) which is gradually protruded outwards from front to back and provided with a circular outer conical surface, the inner surface of the sleeve joint hole (31) of the end part (3) of the cranked rod is provided with a conical groove (33) which is gradually sunken and provided with a circular inner conical surface from front to back, and the diameter of the circular outer conical surface of the conical edge (23) is larger than that of the circular inner conical surface of the conical groove (33) at the same section position.
9. The structure of claim 8, wherein: the outer peripheral surface of the sleeving section (21) of the connecting pin (2) is provided with a mounting groove (24) for placing the conical rib (23), the base part of the conical rib (23) is provided with an embedding part (231) matched with the groove shape and size of the mounting groove (24), and the embedding part (231) of the conical rib (23) is mounted in the mounting groove (24).
10. The structure of connecting an anti-roll torsion bar connecting pin with an end of a torsion bar according to claim 8 or 9, wherein: the tapered groove (33) is arranged at the top or the bottom of the inner wall of the sleeving hole (31).
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| CN202010834846.0A CN112046526B (en) | 2020-08-19 | 2020-08-19 | Connecting method and structure of anti-side-rolling torsion bar connecting pin and end part of bent torsion bar |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238858A (en) * | 2004-01-28 | 2005-09-08 | Sumitomo Metal Ind Ltd | Anti-rolling device for rolling stock |
| JP2009149304A (en) * | 2004-01-28 | 2009-07-09 | Sumitomo Metal Ind Ltd | Anti-rolling device for rolling stock |
| CN201712622U (en) * | 2009-12-07 | 2011-01-19 | 株洲时代新材料科技股份有限公司 | Anti-side-rolling torsion bar device for railway vehicle |
| CN205801119U (en) * | 2016-07-26 | 2016-12-14 | 株洲时代新材料科技股份有限公司 | A kind of integral rail vehicle anti-side rolling torsion rod composition |
| CN106828529A (en) * | 2017-02-28 | 2017-06-13 | 株洲时代新材料科技股份有限公司 | Method for designing of anti-rolling torsion bar for railway vehicle and products thereof, forming method |
-
2020
- 2020-08-19 CN CN202010834846.0A patent/CN112046526B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238858A (en) * | 2004-01-28 | 2005-09-08 | Sumitomo Metal Ind Ltd | Anti-rolling device for rolling stock |
| JP2009149304A (en) * | 2004-01-28 | 2009-07-09 | Sumitomo Metal Ind Ltd | Anti-rolling device for rolling stock |
| CN201712622U (en) * | 2009-12-07 | 2011-01-19 | 株洲时代新材料科技股份有限公司 | Anti-side-rolling torsion bar device for railway vehicle |
| CN205801119U (en) * | 2016-07-26 | 2016-12-14 | 株洲时代新材料科技股份有限公司 | A kind of integral rail vehicle anti-side rolling torsion rod composition |
| CN106828529A (en) * | 2017-02-28 | 2017-06-13 | 株洲时代新材料科技股份有限公司 | Method for designing of anti-rolling torsion bar for railway vehicle and products thereof, forming method |
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| CN112046526B (en) | 2021-10-26 |
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