Turnout roller device and turnout switch

Abstract

The invention discloses a turnout roller device and a turnout switch, and relates to the technical field of railways. The turnout roller device comprises a first support, a second support, a rolling body, a first shaft sleeve assembly and a second shaft sleeve assembly. In the axial direction of the rolling body, the first shaft sleeve assembly and the second shaft sleeve assembly are arranged at the two ends of the rolling body in a sleeving mode correspondingly, and a roller assembly is formed; each of the first shaft sleeve assembly and the second shaft sleeve assembly comprises an eccentric sleeve; the eccentric sleeve comprises a first eccentric sleeve part, a second eccentric sleeve part, a third eccentric sleeve part and an eccentric sleeve cavity; the axis of the rolling body is not collinear with the axis of the eccentric sleeve; the eccentric sleeve can rotate around the axis of the eccentric sleeve to be adjusted so that part of the rolling bodies can protrude out of the surface, deviating from the second support, of the first support. The turnout switch comprises the turnout roller device. The invention provides a turnout roller device and a turnout switch. The turnout roller device and the turnout switch aim to solve the technical problems that in the prior art, the roller height adjusting process of a turnout roller device of a fixed structure is tedious, and the adjusting speed is low.

Description

Technical Field

[0001] The invention relates to the technical field of railways, and in particular to a turnout roller device and a turnout switch. Background Art

[0002] The turnout roller device is a common device in railway transportation. Figure 1 The application schematic diagram of the turnout roller device shown in the figure, the turnout roller device 1 is assembled on the roller slide bed 3 below the railway turnout switch point rail 2. Specifically, the roller slide bed 3 is provided with a mounting threaded hole 4, and the bolt 6 passes through the turnout roller device 1 and is screwed to the mounting threaded hole 4 to fix the turnout roller device 1 on the roller slide bed 3 ( Figure 1 The stock rail 5 is also shown in the figure. The main function of the turnout roller device 1 is to ensure the smooth movement of the point rail 2 during the switching process of the switch. In order to meet the operation requirements of high-speed trains, the turnout roller device is required to have high load-bearing capacity and good wear resistance. The turnout roller device is usually made of high-strength alloy materials, and its dimensional accuracy and surface finish are ensured through precise processing technology.

[0003] In actual application, the turnout roller device needs regular maintenance and inspection to ensure its stable performance. Maintenance work mainly includes cleaning, lubrication and wear inspection. The purpose of cleaning is to remove dirt and impurities on the surface of the roller to prevent it from affecting the normal operation of the switch. The purpose of lubrication is to reduce the friction coefficient between the bottom of the point rail and the roller slide bed to extend its service life. The purpose of wear inspection is to promptly discover and replace worn parts to avoid affecting the safe operation of high-speed railways due to component damage.

[0004] Traditional turnout roller devices usually adopt a fixed structure, which adapts to different operating conditions by replacing roller height adjustment plates of different specifications. When replacing the roller height adjustment plates, it is sometimes necessary to disassemble the entire turnout roller device. The replacement process is cumbersome and requires professional operation, and cannot achieve quick adjustment. Summary of the invention

[0005] The object of the present invention is to provide a turnout roller device and a turnout switch, so as to solve the technical problems of the fixed structure turnout roller device in the prior art that the roller height adjustment process is complicated and the adjustment speed is slow to a certain extent.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A turnout roller device comprises a first bracket, a second bracket, a rolling body, a first sleeve assembly and a second sleeve assembly; Along the axial direction of the rolling body, the first sleeve assembly and the second sleeve assembly are respectively sleeved on both ends of the rolling body to form a roller assembly; along the axial direction perpendicular to the rolling body, the first bracket is connected to at least one of the roller assemblies; The first sleeve assembly and the second sleeve assembly both include an eccentric sleeve; The eccentric sleeve comprises a first eccentric sleeve portion, a second eccentric sleeve portion and a third eccentric sleeve portion connected in sequence along its own axial direction, and also comprises an eccentric sleeve cavity for inserting the rolling body; the outer diameter of the second eccentric sleeve portion is respectively smaller than the outer diameter of the first eccentric sleeve portion and the outer diameter of the third eccentric sleeve portion; the axis of the eccentric sleeve cavity is collinear with the axis of the rolling body, the axis of the outer peripheral wall of the second eccentric sleeve portion is collinear with the axis of the eccentric sleeve, and the axis of the rolling body is not collinear with the axis of the eccentric sleeve; The first bracket is connected with the second bracket to form a sleeve matching hole for accommodating the second eccentric sleeve part, and an accommodating cavity for accommodating the rolling body; The eccentric sleeve is configured to be rotatable and adjustable around its own axis, so that the rolling body rotates synchronously with the eccentric sleeve, so that part of the rolling body protrudes from the surface of the first bracket away from the second bracket.

[0007] In any of the above technical solutions, optionally, the rolling body includes a rolling working part and a rolling shaft part; along the axial direction of the rolling body, both ends of the rolling working part are connected to the rolling shaft part; the rolling shaft part is plugged into the eccentric sleeve cavity; the rolling working part is accommodated in the accommodating cavity; The axis of the rolling body, the axis of the rolling working part and the axis of the rolling shaft part are collinear; The minimum diameter of the rolling working part is greater than the diameter of the rolling shaft part; Along the axial direction of the rolling body, the length of the rolling shaft portion is greater than the depth of the eccentric sleeve cavity, and the length of the second eccentric sleeve portion is greater than the depth of the shaft sleeve matching hole; Dimension a is greater than dimension b so that the end face of the rolling shaft portion is spaced apart from the bottom of the eccentric sleeve cavity; wherein dimension a is the difference between the length of the rolling shaft portion and the depth of the eccentric sleeve cavity, and dimension b is the difference between the length of the second eccentric sleeve portion and the depth of the shaft sleeve fitting hole.

[0008] In any of the above technical solutions, optionally, the first sleeve assembly and the second sleeve assembly both include a wear-resistant sleeve; the wear-resistant sleeve is connected between the eccentric sleeve and the rolling shaft portion; the wear resistance of the wear-resistant sleeve is stronger than that of the eccentric sleeve; The outer wall of the wear-resistant sleeve is coaxially arranged with the inner hole; The wear-resistant sleeve has a notch extending along its axial direction and open at both ends, and the notch passes through the outer wall and inner hole of the wear-resistant sleeve; The number of the wear-resistant sleeves is at least two, and the notches of all the wear-resistant sleeves are arranged in different lines.

[0009] In any of the above technical solutions, optionally, the first sleeve assembly and the second sleeve assembly both include a seal; the eccentric sleeve further includes a seal cavity communicated with the eccentric sleeve cavity; the seal is sleeved on the rolling shaft portion and accommodated in the seal cavity, and the seal cavity opens at one end of the third eccentric sleeve portion away from the first eccentric sleeve portion; The sealing cavity is located in the third eccentric sleeve portion, and the eccentric sleeve cavity is located in the third eccentric sleeve portion and at least a portion of the second eccentric sleeve portion; The outer peripheral wall of the first eccentric sleeve portion, the outer peripheral wall of the second eccentric sleeve portion and the outer peripheral wall of the third eccentric sleeve portion are coaxially arranged; The axis of the seal is colinear with the axis of the rolling element; The sealing member is a lip seal ring; The roller surface of the rolling working part is in an arc shape.

[0010] In any of the above technical solutions, optionally, a rotation limit stop is provided on the outer peripheral wall of the second eccentric sleeve, and the rotation limit stop is fixedly connected to the first eccentric sleeve; The cross section of the rotation limit stopper is in a sector ring shape, and the center of the sector ring shape is located on the axis of the outer peripheral wall of the second eccentric sleeve portion; The first bracket and / or the second bracket is provided with a rotation limiting groove for accommodating the rotation limiting stop.

[0011] In any of the above technical solutions, optionally, the rotation limit stop is configured to rotate within the rotation limit groove within a range of 0-180°; The first bracket is located above the second bracket, and the rotation limiting groove is arranged on the end surfaces of the first bracket and the second bracket; the volume of the rotation limiting groove on the first bracket is smaller than the volume of the rotation limiting groove on the second bracket; along the circumferential extension direction of the rotation limiting groove, the heights of the two ends of the rotation limiting groove are different; The outer peripheral wall of the first eccentric sleeve is provided with a scale structure for displaying the rotation angle of the rotation limit stop; the scale structure is a groove or a protrusion.

[0012] In any of the above technical solutions, optionally, an operating portion is provided on the end surface of the first eccentric sleeve portion away from the third eccentric sleeve portion; the operating portion is non-cylindrical in shape; The outer surface of the second eccentric sleeve is provided with an anti-slip structure.

[0013] In any of the above technical solutions, optionally, the shape of the operating portion is a triangular column, a rectangular column or a hexagonal column; The anti-slip structure is processed by knurling technology.

[0014] In any of the above technical solutions, optionally, along the axial direction perpendicular to the rolling body, the accommodating cavity is provided with an accommodating cavity opening at the end of the first bracket and the end of the second bracket; along the axial direction perpendicular to the rolling body, the switch roller device is provided with two sleeve matching holes; the axis height of the sleeve matching hole close to the accommodating cavity opening is higher than the axis height of the sleeve matching hole far from the accommodating cavity opening; wherein the axis height refers to the distance between the axis and the surface of the second bracket away from the first bracket, and the axis of the sleeve matching hole is collinear with the axis of the eccentric sleeve; The first bracket and the second bracket are both provided with mounting holes, and the fasteners pass through the mounting holes of the first bracket and the second bracket and can be screwed with the fastening nuts; The cross section of the mounting hole is an oblong shape.

[0015] A turnout switch, comprising a plurality of the turnout roller devices described above; At least part of the switch roller device includes one roller assembly, and at least part of the switch roller device includes two roller assemblies.

[0016] The beneficial effects of the present invention are mainly: The turnout roller device and turnout switch provided by the present invention include a first bracket, a second bracket, a rolling body, a first shaft sleeve assembly and a second shaft sleeve assembly, wherein the first shaft sleeve assembly and the second shaft sleeve assembly are respectively sleeved on both ends of the rolling body to form a roller assembly; since the first shaft sleeve assembly and the second shaft sleeve assembly both include an eccentric sleeve, when adjusting the height of the rolling body, the eccentric sleeve can be rotated to adjust so that part of the rolling body protrudes from the surface of the first bracket away from the second bracket, thereby realizing rapid adjustment of the height of the rolling body, which can effectively avoid the operation of disassembling the entire turnout roller device due to the need to replace roller height adjustment plates of different specifications in the prior art, and effectively improves the efficiency of adjusting the height of the rolling body.

[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the application of the existing turnout roller device; Figure 2 A schematic diagram of the structure of a turnout roller device (double rollers) provided in an embodiment of the present invention; Figure 3 for Figure 2 A front view of the turnout roller device shown; Figure 4 for Figure 3 A top view of the turnout roller assembly shown; Figure 5 for Figure 3 The AA section view of the turnout roller device shown; Figure 6 for Figure 5 A partial enlarged view of the turnout roller device shown; Figure 7 Another structural schematic diagram of a turnout roller device provided in an embodiment of the present invention (single roller); Figure 8 A schematic diagram of the structure of an eccentric sleeve assembly provided in an embodiment of the present invention; Fig. 9 A cross-sectional view of an eccentric sleeve assembly provided in an embodiment of the present invention; Fig.10 A schematic diagram of the structure of an eccentric sleeve provided in an embodiment of the present invention; Fig.11 A front view of an eccentric sleeve provided in an embodiment of the present invention; Fig.12 for Fig.11 The BB section view of the eccentric sleeve shown; Fig.13 for Fig.11 The CC section view of the eccentric sleeve shown; Fig.14 for Fig.11 A top view of the eccentric sleeve shown; Fig.15 A schematic diagram of the structure of a wear-resistant sleeve provided in an embodiment of the present invention; Fig.16 A schematic diagram of the structure of an upper bracket provided in an embodiment of the present invention; Fig.17 A front view of an upper bracket provided in an embodiment of the present invention; Fig.18 for Fig.17 a bottom view of the upper bracket shown; Fig.19 A schematic diagram of the structure of a lower bracket provided in an embodiment of the present invention; Fig. 20 A front view of a lower bracket provided in an embodiment of the present invention; Fig.21 for Fig. 20 a bottom view of the upper bracket shown; Fig. 22 A schematic structural diagram of a rolling body provided in an embodiment of the present invention.

[0020] Icons: 1-turnout roller device; 2-point rail; 3-roller slide bed; 4-installation threaded hole; 5-basic rail; 6-bolt; 100-first bracket; 110-accommodating chamber; 111-accommodating chamber opening; 120-sleeve matching hole; 130-rotation limit groove; 140-mounting hole; 150-fastener; 200-second bracket; 300-rolling body; 310-rolling working part; 320-rolling shaft part; 400-first sleeve assembly; 500-second sleeve assembly; 610-eccentric sleeve; 611-first eccentric sleeve part; 612-second eccentric sleeve part; 613-third eccentric sleeve part; 614-eccentric sleeve cavity; 615-sealing cavity; 616-operating part; 617-rotation limit stop; 618-scale structure; 620-seal; 630-wear-resistant sleeve; 631-notch; 700-fastening nut. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] Example The present embodiment provides a turnout roller device and a turnout switch, which can effectively solve the technical problems of the cumbersome roller height adjustment process and slow adjustment speed of the fixed structure turnout roller device in the prior art, and can save the steps of preparing the roller height adjustment sheet of the corresponding height according to the surveying results of different working conditions in the prior art, and can also save the operation of disassembling the entire turnout roller device when performing roller height adjustment maintenance in the prior art. The turnout roller device belongs to the eccentric sleeve adjustment type passenger-dedicated turnout roller device, which can be applied to various high-speed railway turnout systems, especially in the occasions with high requirements for running speed and safety.

[0029] See also Figure 2-Figure 22 As shown, the turnout roller device provided in this embodiment includes a first bracket 100, a second bracket 200, a rolling body 300, a first sleeve assembly 400 and a second sleeve assembly 500.

[0030] Along the axial direction of the rolling body 300, the first sleeve assembly 400 and the second sleeve assembly 500 are respectively sleeved on both ends of the rolling body 300 to form a roller assembly; along the axial direction perpendicular to the rolling body 300, the first bracket 100 is connected to at least one roller assembly; Figure 2-Figure 4 The turnout roller device is shown to include two roller assemblies. Figure 7 The turnout roller device is shown to include a roller assembly.

[0031] The first sleeve assembly 400 and the second sleeve assembly 500 both include an eccentric sleeve 610 .

[0032] like Fig.12 As shown, the eccentric sleeve 610 includes a first eccentric sleeve portion 611, a second eccentric sleeve portion 612 and a third eccentric sleeve portion 613 which are connected in sequence along its own axial direction, and also includes an eccentric sleeve cavity 614 for inserting the rolling body 300; the outer diameter of the second eccentric sleeve portion 612 is smaller than the outer diameter of the first eccentric sleeve portion 611 and the outer diameter of the third eccentric sleeve portion 613; the axis of the eccentric sleeve cavity 614 is collinear with the axis of the rolling body 300, the axis of the outer peripheral wall of the second eccentric sleeve portion 612 is collinear with the axis of the eccentric sleeve 610, and the axis of the rolling body 300 is not collinear with the axis of the eccentric sleeve 610; that is, the axis of the eccentric sleeve cavity 614 is not collinear with the axis of the outer peripheral wall of the second eccentric sleeve portion 612.

[0033] The first bracket 100 is connected with the second bracket 200, and a sleeve matching hole 120 for accommodating the second eccentric sleeve portion 612 is formed, and an accommodating cavity 110 for accommodating the rolling element 300 is formed; that is, the first eccentric sleeve portion 611 and the third eccentric sleeve portion 613 are located outside the sleeve matching hole 120, and the sleeve matching hole 120 is limited between the first eccentric sleeve portion 611 and the third eccentric sleeve portion 613, thereby limiting the distance of the first bracket 100 and the second bracket 200 moving along the axial direction of the eccentric sleeve 610. Optionally, the axis of the sleeve matching hole 120 is colinear with the axis of the outer peripheral wall of the second eccentric sleeve portion 612. Optionally, the accommodating cavity 110, the third eccentric sleeve 613, the second eccentric sleeve 612 and the first eccentric sleeve 611 are arranged in sequence along the axial direction of the rolling body 300, that is, the third eccentric sleeve 613 is close to the accommodating cavity 110 relative to the first eccentric sleeve 611, and the first eccentric sleeve 611 is located at the end of the first bracket 100 and the second bracket 200 away from the accommodating cavity 110.

[0034] The eccentric sleeve 610 is configured to be able to rotate and adjust around its own axis so that the rolling body 300 rotates synchronously with the eccentric sleeve 610, so that part of the rolling body 300 protrudes from the surface of the first bracket 100 away from the second bracket 200. In this embodiment, the first bracket 100 is, for example, located above the second bracket 200. In this embodiment, the rolling body 300 rotates synchronously with the eccentric sleeve 610 around the axis of the eccentric sleeve 610 so that part of the rolling body 300 reaches a preset height, thereby adapting to different working conditions. The preset height is the distance between the rolling body 300 and the surface of the second bracket 200 away from the first bracket 100.

[0035] The switch roller device described in this embodiment includes a first bracket 100, a second bracket 200, a rolling body 300, a first shaft sleeve assembly 400 and a second shaft sleeve assembly 500. The first shaft sleeve assembly 400 and the second shaft sleeve assembly 500 are respectively sleeved on both ends of the rolling body 300 to form a roller assembly; the first shaft sleeve assembly 400 and the second shaft sleeve assembly 500 both include an eccentric sleeve 610. When adjusting the height of the rolling body 300, the eccentric sleeve 610 can be rotated to adjust so that part of the rolling body 300 protrudes from the surface of the first bracket 100 away from the second bracket 200, thereby realizing rapid adjustment of the height of the rolling body 300, which can effectively avoid the operation of disassembling the entire switch roller device due to the need to replace roller height adjustment plates of different specifications in the prior art, and effectively improve the efficiency of height adjustment of the rolling body 300.

[0036] like Fig. 22 As shown, in an optional solution of this embodiment, the rolling body 300 includes a rolling working part 310 and a rolling shaft part 320; along the axial direction of the rolling body 300, both ends of the rolling working part 310 are connected with the rolling shaft part 320; the rolling shaft part 320 is plugged into the eccentric sleeve cavity 614; and the rolling working part 310 is accommodated in the accommodating cavity 110. Optionally, the rolling body 300 is an axisymmetric structure; optionally, the two rolling shaft parts 320 are symmetrically arranged on both sides of the rolling working part 310. Optionally, the rolling working part 310, the third eccentric sleeve part 613, the second eccentric sleeve part 612 and the first eccentric sleeve part 611 are arranged in sequence along the axial direction of the rolling body 300.

[0037] Optionally, the axis of the rolling element 300 , the axis of the rolling working portion 310 , and the axis of the rolling shaft portion 320 are collinear.

[0038] Optionally, the minimum diameter of the rolling working part 310 is greater than the diameter of the rolling shaft part 320 ; during the switching process of the switch, the rolling working part 310 supports the connecting point rail to move smoothly.

[0039] Optionally, the roller surface of the rolling working part 310 is cambered.

[0040] like Figure 5 and Figure 6 As shown, optionally, along the axial direction of the rolling body 300, the length of the rolling shaft portion 320 is greater than the depth of the eccentric sleeve cavity 614, so that there is a gap between the end face of the rolling working portion 310 and the end face of the third eccentric sleeve portion 613, and further a gap is formed between the rolling working portion 310 and the eccentric sleeve 610, thereby effectively avoiding the generation of friction between the end face of the rolling working portion 310 and the eccentric sleeve 610 when the rolling body 300 rolls, thereby effectively ensuring the normal rolling of the rolling body 300 and effectively extending the service life of the rolling body 300.

[0041] Optionally, the length of the second eccentric sleeve portion 612 is greater than the depth of the shaft sleeve fitting hole 120, that is, at least one of the first eccentric sleeve portion 611 and the third eccentric sleeve portion 613 is spaced apart from the first bracket 100 and the second bracket 200, that is, the first eccentric sleeve portion 611 and / or the third eccentric sleeve portion 613 can have a gap with the first bracket 100 and the second bracket 200; optionally, the first eccentric sleeve portion 611 is located outside the first bracket 100 and the second bracket 200.

[0042] like Figure 5 and Figure 6 As shown, optionally, dimension a is greater than dimension b, so that the end surface of the rolling shaft portion 320 is spaced from the bottom of the eccentric sleeve cavity 614, that is, there is a gap c (as shown in FIG. Figure 6 ); wherein, dimension a is the difference between the length of the rolling shaft portion 320 and the depth of the eccentric sleeve cavity 614, and dimension b is the difference between the length of the second eccentric sleeve portion 612 and the depth of the sleeve matching hole 120. Dimension a is greater than dimension b, so that there is a gap between the end face of the rolling shaft portion 320 and the bottom of the eccentric sleeve cavity 614, and further, there is a gap between the end face of the rolling shaft portion 320 and the corresponding end face of the eccentric sleeve 610, which effectively avoids the friction between the end face of the rolling shaft portion 320 and the corresponding end face of the eccentric sleeve 610 when the rolling body 300 rolls, thereby effectively ensuring the normal rolling of the rolling body 300 and effectively extending the service life of the rolling body 300.

[0043] See also Figure 5-Figure 9 , Fig.15 As shown, in the optional scheme of this embodiment, the first sleeve assembly 400 and the second sleeve assembly 500 both include a wear-resistant sleeve 630; the wear-resistant sleeve 630 is connected between the eccentric sleeve 610 and the rolling shaft portion 320; the wear resistance of the wear-resistant sleeve 630 is stronger than the wear resistance of the eccentric sleeve 610; the wear resistance of the first sleeve assembly 400 and the second sleeve assembly 500 is improved by the wear-resistant sleeve 630.

[0044] Optionally, the outer wall of the wear-resistant sleeve 630 is coaxially arranged with the inner hole.

[0045] Optionally, the wear-resistant sleeve 630 has a notch 631 extending along its own axis and open at both ends, and the notch 631 passes through the outer wall and the inner hole of the wear-resistant sleeve 630; the notch 631 helps to improve the elasticity of the wear-resistant sleeve 630 and helps to install the wear-resistant sleeve 630 in the eccentric sleeve 610, for example, the wear-resistant sleeve 630 is installed in the eccentric sleeve cavity 614 of the eccentric sleeve 610.

[0046] Optionally, the wear-resistant sleeve 630 and the eccentric sleeve 610 are interference fit.

[0047] Optionally, there are at least two wear-resistant sleeves 630, and the notches 631 of all wear-resistant sleeves 630 are arranged in different lines. By arranging the notches 631 of all wear-resistant sleeves 630 in different lines, the supporting capacity of the first sleeve assembly 400 and the second sleeve assembly 500 is improved.

[0048] See also Figure 5-Figure 12 As shown, in an optional scheme of this embodiment, the first shaft sleeve assembly 400 and the second shaft sleeve assembly 500 both include a seal 620; the eccentric sleeve 610 also includes a seal cavity 615 connected to the eccentric sleeve cavity 614; the seal 620 is sleeved on the rolling shaft portion 320, and the seal 620 is accommodated in the seal cavity 615, and the seal cavity 615 is open at one end of the third eccentric sleeve portion 613 away from the first eccentric sleeve portion 611; the seal 620 is used to prevent foreign matter such as dust from entering the first shaft sleeve assembly 400 and the second shaft sleeve assembly 500.

[0049] Optionally, the sealing cavity 615 is located in the third eccentric sleeve portion 613 , and the eccentric sleeve cavity 614 is located in the third eccentric sleeve portion 613 and at least part of the second eccentric sleeve portion 612 ; optionally, the eccentric sleeve cavity 614 is located in the third eccentric sleeve portion 613 and the second eccentric sleeve portion 612 .

[0050] Optionally, the outer peripheral wall of the first eccentric sleeve 611, the outer peripheral wall of the second eccentric sleeve 612 and the outer peripheral wall of the third eccentric sleeve 613 are coaxially arranged, that is, the outer peripheral wall of the first eccentric sleeve 611, the outer peripheral wall of the second eccentric sleeve 612 and the outer peripheral wall of the third eccentric sleeve 613 are all colinear with the axis of the eccentric sleeve 610.

[0051] Optionally, the axis of the eccentric sleeve cavity 614 , the axis of the seal 620 , and the axis of the rolling body 300 are colinear.

[0052] Optionally, the seal 620 is a lip seal or a seal of other shapes.

[0053] See also Figure 9-14As shown, in an optional solution of this embodiment, a rotation limit stopper 617 is provided on the outer peripheral wall of the second eccentric sleeve portion 612, and the rotation limit stopper 617 is fixedly connected to the first eccentric sleeve portion 611. The rotation limit stopper 617 is used to limit the rotation adjustment angle of the eccentric sleeve 610 around its own axis, so that the rotation adjustment of the eccentric sleeve 610 is more precise, which is beneficial to the height adjustment of the rolling body 300.

[0054] Optionally, the cross-section of the rotation limit stop 617 is fan-shaped, and the center of the fan-shaped circle is located on the axis of the outer peripheral wall of the second eccentric sleeve 612; by making the cross-section of the rotation limit stop 617 fan-shaped, the rotation adjustment accuracy of the eccentric sleeve 610 is improved.

[0055] like Figure 16-Figure 21 As shown, optionally, the first bracket 100 and / or the second bracket 200 are provided with a rotation limiting groove 130 for accommodating the rotation limiting stop 617. The rotation limiting groove 130 can better accommodate the rotation limiting stop 617; the rotation limiting groove 130 can also limit the rotation angle of the rotation limiting stop 617, thereby limiting the rotation adjustment angle of the eccentric sleeve 610 around its own axis.

[0056] In an optional scheme of this embodiment, the rotation limit stop 617 is configured to rotate within the rotation limit groove 130 within a range of 0-180°; by setting the rotation angle range of the rotation limit stop 617 to 0-180°, the rotation accuracy of the rotation limit stop 617 is improved, thereby improving the accuracy of the rotation adjustment of the eccentric sleeve 610 around its own axis, thereby improving the height adjustment accuracy of the rolling body 300.

[0057] Optionally, the first bracket 100 is located above the second bracket 200, and the rotation limiting groove 130 is arranged on the end faces of the first bracket 100 and the second bracket 200; the volume of the rotation limiting groove 130 on the first bracket 100 is smaller than the volume of the rotation limiting groove 130 on the second bracket 200; along the circumferential extension direction of the rotation limiting groove 130, the heights of the two ends of the rotation limiting groove 130 are different, that is, one end of the rotation limiting groove 130 is relatively low, and the other end is relatively high. In other words, the rotation limiting groove 130 is higher at one end of the first bracket 100 and lower at one end of the second bracket 200; such a design is adopted to improve the drainage performance of the rotation limiting groove 130, for example, to drain rainwater that may exist in the turnout roller device in an open air environment. Among them, the height of the end of the rotation limiting groove 130 refers to the distance between the end of the rotation limiting groove 130 and the surface of the second bracket 200 away from the first bracket 100.

[0058] Alternatively, if Fig.13 , Fig.17 and Fig. 20As shown, the cross-section of the rotation limit stop 617 is a fan-shaped ring with a central angle of 15°, the central angle corresponding to the rotation limit groove 130 on the first bracket 100 is 60°, and the central angle corresponding to the rotation limit groove 130 on the second bracket 200 is 135°, and the rotation range of the rotation limit stop 617 in the rotation limit groove 130 is 0-180°.

[0059] Alternatively, if Figure 8-Figure 10 As shown, the outer peripheral wall of the first eccentric sleeve portion 611 is provided with a scale structure 618 for displaying the rotation angle of the rotation limit stop 617; the scale structure 618 is a groove or a protrusion. The scale structure 618 can accurately display the adjustment value, so as to improve the rotation accuracy of the rotation limit stop 617, thereby improving the accuracy of the rotation adjustment of the eccentric sleeve 610 around its own axis, thereby improving the height adjustment accuracy of the rolling body 300, and ensuring the accuracy and repeatability of the adjustment.

[0060] See also Figure 8-Figure 14 As shown, in an optional solution of this embodiment, an operating portion 616 is provided on the end surface of the first eccentric sleeve 611 away from the third eccentric sleeve 613; the operating portion 616 facilitates the rotation of the third eccentric sleeve 613, thereby facilitating the rotation of the eccentric sleeve 610 around its own axis for adjustment.

[0061] Optionally, the operating portion 616 is non-cylindrical in shape; by making the operating portion 616 non-cylindrical in shape, the tool can better drive the operating portion 616 to rotate, thereby driving the eccentric sleeve 610 to rotate to adjust the roller surface height of the rolling body 300 .

[0062] Optionally, the operating portion 616 is in the shape of a triangular column, a rectangular column, a hexagonal column, or other shapes.

[0063] Optionally, the outer surface of the second eccentric sleeve 612 is provided with an anti-skid structure, so as to improve the friction coefficient between the second eccentric sleeve 612 and the first bracket 100 / the second bracket 200 to a certain extent, which helps to improve the accuracy of the rotation adjustment of the eccentric sleeve 610 around its own axis, thereby improving the roller surface height adjustment accuracy of the rolling body 300. The anti-skid structure described in this embodiment can greatly increase the static friction between the first bracket 100 / the second bracket 200 and the second eccentric sleeve 612 after the turnout roller device is installed on the roller sliding bed, ensuring that the eccentric sleeve 610 does not rotate under the rated load and the axis height of the rolling body 300 does not rise or fall.

[0064] Optionally, the anti-slip structure is manufactured by a knurling process, or the anti-slip structure is manufactured by other processes.

[0065] See also Figure 2 , Figure 4 and Figure 7As shown, in an optional solution of this embodiment, along the axial direction perpendicular to the rolling body 300 , the accommodating cavity 110 is provided with an accommodating cavity opening 111 at both the end of the first bracket 100 and the end of the second bracket 200 .

[0066] Optionally, along the axial direction perpendicular to the rolling body 300, the turnout roller device is provided with two sleeve matching holes 120; the axis height of the sleeve matching hole 120 close to the accommodating cavity opening 111 is higher than the axis height of the sleeve matching hole 120 far from the accommodating cavity opening 111; wherein the axis height refers to the distance between the axis and the surface of the second bracket 200 away from the first bracket 100, and the axis of the sleeve matching hole 120 is collinear with the axis of the eccentric sleeve 610. In this embodiment, the axis height of the sleeve matching hole 120 close to the accommodating cavity opening 111 is higher than the axis height of the sleeve matching hole 120 far from the accommodating cavity opening 111, that is, the axis height of the eccentric sleeve 610 close to the accommodating cavity opening 111 is higher than the axis height of the eccentric sleeve 610 far from the accommodating cavity opening 111, so as to facilitate the smooth movement of the point rail during the switching process of the switch.

[0067] See also Figure 2-Figure 4 , Figure 16-Figure 21 As shown, optionally, the first bracket 100 and the second bracket 200 are both provided with a mounting hole 140, and the fastener 150 passes through the mounting holes 140 of the first bracket 100 and the second bracket 200, and the fastener 150 can be screwed with the fastening nut 700; through the mounting hole 140 and the fastener 150, the turnout roller device can be installed on the roller slide bed; through the fastener 150 and the fastening nut 700, the turnout roller device can be formed into a whole, which is helpful for the packaging, transportation, transshipment, etc. of the turnout roller device.

[0068] Optionally, the cross section of the mounting hole 140 is an oblong or other shape to facilitate the fastener 150 to mount the switch roller device on the roller slide bed.

[0069] In the turnout roller device described in this embodiment, the eccentric sleeve 610 of the first sleeve assembly 400 and the eccentric sleeve 610 of the second sleeve assembly 500 are respectively rotated and adjusted around their own axes. For example, according to the working conditions of different turnouts, the eccentric sleeve 610 of the first sleeve assembly 400 and the eccentric sleeve 610 of the second sleeve assembly 500 are rotated and adjusted, thereby driving the corresponding rolling body 300 to rise and fall, so as to adjust the axis of the rolling body 300 to a suitable height, that is, when the height of the working arc surface of the rolling body 300 reaches the theoretical value, the rolling body 300 can be quickly adjusted. Then, the fastener 150 is passed through the mounting hole 140 of the first bracket 100 and the second bracket 200, and is threadedly fixedly connected with the threaded hole of the roller slide bed plate, and the fastener 150 is locked with a locking wrench to fix the turnout roller device on the roller slide bed plate.

[0070] The turnout roller device described in this embodiment has the following advantages: 1. Rapid adjustment: By rotating the eccentric sleeve 610, the roller surface height of the rolling body 300 can be quickly adjusted without replacing the height adjustment sheet, which greatly shortens the maintenance time.

[0071] 2. Precise control: The adjustment value can be accurately displayed through the scale structure 618 to ensure the accuracy and repeatability of the adjustment.

[0072] 3. Reduce maintenance costs: Since the adjustment process is simple and quick, it reduces dependence on professionals, thereby reducing maintenance costs.

[0073] 4. Effectively improve safety: The fast and precise adjustment capability ensures the smoothness of the turnout during the switching process, thus improving the safety of high-speed rail operation.

[0074] This embodiment also provides a turnout switch, comprising a plurality of turnout roller devices according to any of the above embodiments; at least part of the turnout roller devices comprises a roller assembly (such as Figure 7 The turnout roller device includes a roller assembly, and at least part of the turnout roller device includes two roller assemblies ( Figure 2-Figure 4 The turnout roller device is shown to include two roller assemblies).

[0075] The turnout switch described in this embodiment includes a turnout roller device, and the first sleeve assembly 400 and the second sleeve assembly 500 of the turnout roller device both include an eccentric sleeve 610. When adjusting the height of the rolling body 300, the eccentric sleeve 610 can be rotated to adjust so that part of the rolling body 300 protrudes from the surface of the first bracket 100 away from the second bracket 200, thereby realizing rapid adjustment of the height of the rolling body 300. This can effectively avoid the operation of disassembling the entire turnout roller device due to the need to replace roller height adjustment plates of different specifications in the prior art, and effectively improve the efficiency of height adjustment of the rolling body 300.

[0076] The turnout switch provided in this embodiment includes the above-mentioned turnout roller device, and the technical features of the above-mentioned turnout roller device are also applicable to the turnout switch, and the technical features of the above-mentioned turnout roller device disclosed are not described repeatedly. The turnout switch described in this embodiment has the advantages of the above-mentioned turnout roller device, and the advantages of the above-mentioned turnout roller device disclosed are not described repeatedly here.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A turnout roller device, characterized in that: It comprises a first bracket (100), a second bracket (200), a rolling body (300), a first shaft sleeve assembly (400) and a second shaft sleeve assembly (500); Along the axial direction of the rolling body (300), the first shaft sleeve assembly (400) and the second shaft sleeve assembly (500) are respectively sleeved on two ends of the rolling body (300) to form a roller assembly; along the axial direction perpendicular to the rolling body (300), the first bracket (100) is connected to at least one of the roller assemblies; The first shaft sleeve assembly (400) and the second shaft sleeve assembly (500) both comprise an eccentric sleeve (610); The eccentric sleeve (610) comprises a first eccentric sleeve portion (611), a second eccentric sleeve portion (612) and a third eccentric sleeve portion (613) which are sequentially connected along the axial direction thereof, and also comprises an eccentric sleeve cavity (614) for inserting the rolling body (300); the outer diameter of the second eccentric sleeve portion (612) is respectively smaller than the outer diameter of the first eccentric sleeve portion (611) and the outer diameter of the third eccentric sleeve portion (613); the axis of the eccentric sleeve cavity (614) is collinear with the axis of the rolling body (300), the axis of the outer peripheral wall of the second eccentric sleeve portion (612) is collinear with the axis of the eccentric sleeve (610), and the axis of the rolling body (300) is not collinear with the axis of the eccentric sleeve (610); The first bracket (100) is connected in a mating manner with the second bracket (200), and forms a shaft sleeve mating hole (120) for accommodating the second eccentric sleeve portion (612), and forms an accommodating cavity (110) for accommodating the rolling body (300); The eccentric sleeve (610) is configured to be rotatable and adjustable around its own axis, so that the rolling body (300) rotates synchronously with the eccentric sleeve (610), thereby causing a portion of the rolling body (300) to protrude from a surface of the first bracket (100) facing away from the second bracket (200).

2. The turnout roller device according to claim 1, characterized in that: The rolling body (300) comprises a rolling working part (310) and a rolling shaft part (320); along the axial direction of the rolling body (300), both ends of the rolling working part (310) are connected to the rolling shaft part (320); the rolling shaft part (320) is plugged into the eccentric sleeve cavity (614); the rolling working part (310) is accommodated in the accommodating cavity (110); The axis of the rolling body (300), the axis of the rolling working part (310), and the axis of the rolling shaft part (320) are collinear; The minimum diameter of the rolling working portion (310) is greater than the diameter of the rolling shaft portion (320); Along the axial direction of the rolling body (300), the length of the rolling shaft portion (320) is greater than the depth of the eccentric sleeve cavity (614), and the length of the second eccentric sleeve portion (612) is greater than the depth of the shaft sleeve matching hole (120); Dimension a is greater than dimension b so that the end face of the rolling shaft portion (320) is spaced apart from the bottom of the eccentric sleeve cavity (614); wherein dimension a is the difference between the length of the rolling shaft portion (320) and the depth of the eccentric sleeve cavity (614), and dimension b is the difference between the length of the second eccentric sleeve portion (612) and the depth of the shaft sleeve fitting hole (120).

3. The turnout roller device according to claim 2, characterized in that: The first shaft sleeve assembly (400) and the second shaft sleeve assembly (500) both comprise a wear-resistant sleeve (630); the wear-resistant sleeve (630) is connected between the eccentric sleeve (610) and the rolling shaft portion (320); the wear resistance of the wear-resistant sleeve (630) is stronger than the wear resistance of the eccentric sleeve (610); The outer wall of the wear-resistant sleeve (630) is coaxially arranged with the inner hole; The wear-resistant sleeve (630) has a notch (631) extending along its axial direction and open at both ends, and the notch (631) penetrates the outer wall and inner hole of the wear-resistant sleeve (630); The number of the wear-resistant sleeves (630) is at least two, and the notches (631) of all the wear-resistant sleeves (630) are arranged in different lines.

4. The turnout roller device according to claim 3, characterized in that: The first shaft sleeve assembly (400) and the second shaft sleeve assembly (500) both include a sealing member (620); the eccentric sleeve (610) further includes a sealing cavity (615) in communication with the eccentric sleeve cavity (614); the sealing member (620) is disposed on the rolling shaft portion (320) and is accommodated in the sealing cavity (615); the sealing cavity (615) is open at one end of the third eccentric sleeve portion (613) away from the first eccentric sleeve portion (611); The sealing cavity (615) is located in the third eccentric sleeve portion (613), and the eccentric sleeve cavity (614) is located in the third eccentric sleeve portion (613) and at least a portion of the second eccentric sleeve portion (612); The outer peripheral wall of the first eccentric sleeve portion (611), the outer peripheral wall of the second eccentric sleeve portion (612) and the outer peripheral wall of the third eccentric sleeve portion (613) are coaxially arranged; The axis of the sealing element (620) is colinear with the axis of the rolling element (300); The sealing element (620) is a lip-shaped sealing ring; The roller surface of the rolling working part (310) is in the shape of an arc surface.

5. The turnout roller device according to claim 1, characterized in that: A rotation limit stopper (617) is provided on the outer peripheral wall of the second eccentric sleeve portion (612), and the rotation limit stopper (617) is fixedly connected to the first eccentric sleeve portion (611); The cross section of the rotation limit stopper (617) is in the shape of a sector ring, and the center of the sector ring is located on the axis of the outer peripheral wall of the second eccentric sleeve portion (612); The first bracket (100) and / or the second bracket (200) is provided with a rotation limit groove (130) for accommodating the rotation limit stop (617).

6. The turnout roller device according to claim 5, characterized in that: The rotation limit stop (617) is configured to rotate within the rotation limit groove (130) within a range of 0-180°; The first bracket (100) is located above the second bracket (200); the rotation limiting groove (130) is arranged on the end surfaces of the first bracket (100) and the second bracket (200); the volume of the rotation limiting groove (130) on the first bracket (100) is smaller than the volume of the rotation limiting groove (130) on the second bracket (200); along the circumferential extension direction of the rotation limiting groove (130), the heights of the two ends of the rotation limiting groove (130) are different; The outer peripheral wall of the first eccentric sleeve portion (611) is provided with a scale structure (618) for displaying the rotation angle of the rotation limit stop (617); the scale structure (618) is a groove or a protrusion.

7. The turnout roller device according to claim 1, characterized in that: An operating portion (616) is provided on the end surface of the first eccentric sleeve portion (611) facing away from the third eccentric sleeve portion (613); the operating portion (616) is in a non-cylindrical shape; The outer surface of the second eccentric sleeve portion (612) is provided with an anti-slip structure.

8. The turnout roller device according to claim 7, characterized in that: The operating portion (616) is in the shape of a triangular column, a rectangular column or a hexagonal column; The anti-slip structure is processed by knurling technology.

9. The turnout roller device according to claim 1, characterized in that: Along an axial direction perpendicular to the rolling body (300), the accommodating cavity (110) is provided with an accommodating cavity opening (111) at both the end of the first bracket (100) and the end of the second bracket (200); along an axial direction perpendicular to the rolling body (300), the switch roller device is provided with two shaft sleeve matching holes (120); the axis height of the shaft sleeve matching hole (120) close to the accommodating cavity opening (111) is higher than the axis height of the shaft sleeve matching hole (120) far from the accommodating cavity opening (111); wherein the axis height refers to the distance between the axis and the surface of the second bracket (200) facing away from the first bracket (100), and the axis of the shaft sleeve matching hole (120) is collinear with the axis of the eccentric sleeve (610); The first bracket (100) and the second bracket (200) are both provided with mounting holes (140); the fasteners (150) pass through the mounting holes (140) of the first bracket (100) and the second bracket (200) and can be threadedly connected to the fastening nuts (700); The cross section of the mounting hole (140) is an oblong shape.

10. A turnout switch, characterized in that: comprising a plurality of turnout roller devices according to any one of claims 1 to 9; At least part of the switch roller device includes one roller assembly, and at least part of the switch roller device includes two roller assemblies.

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