Elastic buffering roller cage shoe

Abstract

The utility model discloses an elastic buffering roller cage shoe, which comprises a twisting frame, a roller shaft seat is arranged at one end of the twisting frame; the roller is mounted on the roller shaft seat; the shell is a polygon prism shell; the base is fixedly connected with the shell; the inner core is a polygon prism body located in the shell, in the initial state, the edges of the polygon prism body are aligned with the center line of the side face of the polygon prism shell, and a plurality of triangular cavities are formed between the polygon prism body and the polygon prism shell; the elastic body is arranged in the triangular cavity; wherein the two ends of the inner core are fixedly connected with the other ends of the frame plates on the corresponding sides. The elastic buffering roller cage shoe is relatively compact in structure and relatively low in assembly difficulty.

Description

Technical Field

[0001] The utility model relates to an elastic buffer roller tank ear. Background Art

[0002] In addition to the roller ears (referred to as standard roller ears) that comply with the coal industry standard MT236-2011 (the standard name is "Rectangular Steel Tankway Roller Ears"), the commonly used roller ears in China at present also include a type of roller ears derived from German technology. Unlike the standard roller ears that use telescopic cushioning, this type of roller ears derived from German technology directly uses torsion to obtain cushioning, and can be defined as elastic cushioning roller ears.

[0003] A common elastic buffer roller ear includes a swing arm, one end of which is a mounting base for the roller, and the other end is connected to a cylindrical or polygonal outer cylinder. An inner cylinder is provided inside the outer cylinder, and the inner cylinder is statically arranged relative to the outer cylinder. In this case, the inner cylinder needs to extend from both ends of the outer cylinder to form a portion that can be fixedly connected to the frame. An elastic component for providing torque is provided between the inner cylinder and the outer cylinder. When the outer cylinder rotates relative to the inner cylinder, the elastic component is compressed or twisted to store energy. When the external force on the outer cylinder is weakened or disappears, the elastic component is deformed to restore the swing arm.

[0004] In the known elastic buffer roller ear, since the outer cylinder has a swinging motion and the inner cylinder is a static cylinder, many adapters need to be matched when connecting the swing arm and the inner cylinder to the frame, and the overall structure is relatively complex. At the same time, since the outer cylinder is a swinging cylinder, the elastic component needs to be arranged in the outer cylinder, that is, the elastic component, the outer cylinder and the swing arm are integrated into a sub-assembly as a whole, and then the inner cylinder is installed to form a final assembly. The overall weight of the final assembly is relatively large, and it is relatively difficult to operate when the final assembly is installed on the frame. Utility Model Content

[0005] The utility model aims to provide an elastic buffer roller tank ear which has a relatively compact structure and relatively low assembly difficulty.

[0006] In an embodiment of the utility model, a spring-buffered roller tank ear is provided, comprising:

[0007] The torsion frame comprises a pair of parallel frame plates and a connector for connecting the two frame plates; a roller shaft seat is provided at one end of the torsion frame;

[0008] A roller, mounted on the roller shaft seat via a roller shaft;

[0009] The outer shell is a polygonal column shell and is located between two frame plates;

[0010] A base, fixedly connected to the shell;

[0011] The inner core is a polygonal prism located in the outer shell, the number of edges of the polygonal prism is the same as the number of edges of the polygonal prism shell, and in the initial state, the edges of the polygonal prism are aligned with the side midline of the polygonal prism shell, and a plurality of triangular cavities are formed between the polygonal prism and the polygonal prism shell; and

[0012] The elastic body is a triangular prism having the same cross section as the triangular cavity and is built into the triangular cavity;

[0013] The two ends of the inner core are fixedly connected to the other end of the frame plate located on the corresponding side.

[0014] Optionally, the outer shell is a regular tetrahedral shell; and the inner core is correspondingly a regular tetrahedral prism.

[0015] Optionally, the inner core and the frame plate are fixed by screws;

[0016] Screw holes are correspondingly opened at both ends of the inner core, and the two frame plates are fixed to the inner core by screws respectively.

[0017] Optionally, the two frame plates are provided with arc-shaped sliding holes on the dividing circles corresponding to the screw holes, the number of which is the same as the screw holes.

[0018] Optionally, a backing plate with through holes for screws to pass through is mounted on the outer side of the frame plate.

[0019] Optionally, the inner core is two separate core bodies;

[0020] The two cores are disconnected or connected.

[0021] Optionally, the inner core is a hollow polygonal cylinder.

[0022] Optionally, the roller is located between two frames or outside one frame.

[0023] Optionally, the roller shaft and the seat hole of the roller shaft seat are connected by a profile connection or the matching part of the roller shaft and the seat hole is a round shaft segment, and the roller shaft is fixed to the seat hole by pressing or tightening screws.

[0024] Optionally, the roller shaft seat is a split roller shaft seat, and has a pressing block and a seat body;

[0025] Among them, the seat body is equipped with a joint bolt through a pin shaft, and the pressing block is correspondingly provided with a bolt hole;

[0026] The pressure block is passed through the joint bolt and locked with a nut.

[0027] In an embodiment of the utility model, the torsion frame of the elastic buffer roller tank ear provided has a pair of frame plates, the two frame plates are parallel to each other and connected as a whole through a connector. A roller shaft seat is provided at one end of the torsion frame, and the roller is installed on the roller shaft seat through the roller shaft. At the same time, the outer shell is fixedly connected to the base, and an inner core is provided in the outer shell. The cross-sections of the two are basically similar structures in geometry. Under this condition, it is equivalent to the inner core deflecting a predetermined angle, so that the edge of the inner core is aligned with the side center line of the outer shell in the initial state. Furthermore, the two ends of the inner core are fixedly connected to the frame plates on the corresponding sides. In this type of structure of the utility model, since the outer shell is fixed to the base, the installation of the torsion frame does not need to cross more objects, so the overall structure is relatively compact, the assembly difficulty is reduced, and the assembly efficiency is relatively high. At the same time, the inner core forms a plurality of triangular cavities based on the aforementioned alignment of the edge with the side center line of the outer shell, and an elastic body is arranged in the triangular cavity, which is relatively simple to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main structure of the elastic buffer roller tank ear in one embodiment (partial section).

[0029] Figure 2 Schematic diagram of the support assembly structure in one embodiment.

[0030] Figure 3 It is a schematic diagram of the right view of the structure of the elastic buffer roller tank ear in one embodiment.

[0031] Figure 4 Schematic diagram of the torsion frame structure in one embodiment.

[0032] Figure 5 It is a schematic diagram of the main structure of the elastic buffer roller tank ear in another embodiment (partial section).

[0033] In the figure: 1. smooth hole, 2. base, 3. housing, 4. hexagon head screw, 5. spring washer, 6. torsion frame, 7. roller, 8. nut with cover, 9. joint bolt, 10. roller shaft, 11. pin shaft, 12. cotter pin, 13. square core, 14. pad, 15. elastic buffer block, 16. threaded hole, 17. arc sliding hole, 18. pressure block, 19. shaft hole. DETAILED DESCRIPTION

[0034] exist Figure 1 and Figure 5 In the illustrated structure, the elastic buffer roller tank ears all include a base 2, a shell 3 fixed to the base 2 as a whole, a square core 13 located in the shell 3, and a torsion frame 6 with the square core 13 as a mounting base, wherein the base 2 is generally a flat plate structure, and the base 2 generally has an even number of light holes 1 to provide bolts for mounting on, for example, a tank cage.

[0035] Since the housing 3 is a tube shell, Figure 2 The regular quadrangular prism shell shown can be referred to as a square shell. The square shell is flat relative to the base 2. Therefore, the base 2 usually also has a vertical plate perpendicular to the base. For example, the square shell can be welded to the vertical plate.

[0036] The vertical board Figure 2 The upper edge of the illustrated structure is provided with a notch, the notch profile is shaped like the lower outer contour of the square tube shell to improve the bonding ability.

[0037] In this way, the square tube shell and the base 2, which are similar to the traditional outer tube, are fixed by welding, for example, without the need for a vertical plate extending outward to the end face of the inner tube to achieve connection. Not only is the connecting unit relatively short, and thus has good reliability, but the base 2 will not be too large as a whole, and disassembly and assembly are more convenient.

[0038] Furthermore, regarding the torsion frame 6, Figure 1 ,as well as Figure 3~Figure 5 As can be seen from the illustrated structure, it includes two frame plates of substantially the same shape, and the outer edges of each side of the two frame plates are fixed by welding using two connecting plates, so the overall reliability is relatively good.

[0039] The outer surface of the connecting plate is substantially flush with the outer edge of the frame plate and is smooth as a whole. In this case, a groove needs to be formed at the portion of the frame plate used for connecting with the connecting plate to accommodate the end of the connecting plate.

[0040] Furthermore, connecting the connecting plates at the outer edges of the frame plates is relatively advantageous for avoiding movement interference.

[0041] Considering the motion interference, relatively speaking, if Figure 2 The support assembly shown is used to support the torsion frame 6, and in order to meet the requirements of the setting of the elastic body, it has a relatively large width (in the embodiment of the utility model, the width is the direction perpendicular to the axial direction of the roller shaft 10 in the reference plane), and the part of the torsion frame 6 for installing the roller shaft 10 only needs to meet the requirements of the installation of the roller shaft 10, and does not need to be too wide. Figure 3 and Figure 4 In the illustrated structure, the frame plate is generally V-shaped, and the large end is rounded, relative to, for example Figure 2 In the support assembly shown in the figure, the frame plate roughly surrounds the support assembly, which is not easy to cause injuries due to relatively sharp edges.

[0042] For elastomers, such as Figure 2 The elastic buffer block 15 shown in the figure can be made of elastic materials such as rubber.

[0043] Relatively speaking, if Figure 2The square tube shell in the support assembly shown has a rounded square cross section, which also has a good effect of avoiding injuries.

[0044] Figure 3 The state of the torsion frame 6 shown in the figure is the state of the torsion frame 6 relative to the base 2 in the installed state, and is shown as tilted in the figure. The tilted direction of the torsion frame 6 is usually called the front, and the reverse direction is the rear. For example, during the operation of the cage, the torsion frame 6 will swing to generate a buffer.

[0045] Correspondingly, firstly, the roller 7 is installed on the small end of the torsion frame 6 through the roller shaft 10, and a roller shaft seat is provided at the small end of the torsion frame 6.

[0046] It should be known that the roller 7 can be exactly the same as the roller used in the standard roller can ear. Under this condition, the roller 7 is usually mounted on the roller shaft 10 through a bearing. In other words, the roller shaft 10 is often fixed. If the detachability is not considered, the roller shaft 10 can be fixed on the roller shaft seat in an irremovable manner.

[0047] However, even standard roller tank ears are usually mounted on the roller shaft seat in a detachable manner.

[0048] in accordance with Figure 3 As can be seen from the illustrated structure, the power that causes the torsion frame 6 to swing comes from the reaction of the tank channel to the roller 7. The motion of the torsion frame 6 is swinging, and the swing angle range is usually not large, generally less than 15 degrees, and rarely exceeds 30 degrees. At this time, the elastic expansion and contraction amount of the elastic body needs to be considered, which will involve the number of elastic bodies.

[0049] like Figure 2 As shown, there are four elastic buffer blocks 15 constituting the elastic body, and the corresponding square core 13 constituting the inner core is a regular quadrangular prism, while the outer shell 3 is a square tube sleeve. When the square core 13 is deflected, the elastic buffer block 15 will be squeezed to swing, and the torsion frame 6 connected to the square core 13 will also swing accordingly.

[0050] in, Figure 2 The state shown is an initial state, at which the edge of the square core 13 is aligned with the center line of the side surface of the housing 3 to obtain a good initial state.

[0051] The side surface here refers to the side wall of the shell 3 when the shell 3 is a regular polygonal shell, and the center line is obviously parallel to the center line of its edge.

[0052] Regarding the regular polygonal prism shell, the number of its edges should not exceed six, but should not be less than three, and four is preferred.

[0053] Since the inner core is connected to the torsion frame 6 and the inner core is located in the outer shell, the torsion frame 6 needs to be connected to the end face of the inner core. Under this condition, the inner core can be slightly longer than the outer shell to avoid motion interference between the torsion frame 6 and the outer shell. In this way, the outer shell 3 needs to be between the two frame plates and be separated from the two frame plates.

[0054] However, in some embodiments, a slide plate may be installed on the portion of the frame plate facing the housing 3, so that the frame plate fits the housing 3 in a contacting manner to improve assembly accuracy. The slide plate is used to provide a sliding surface for relative movement between the housing 3 and the frame plate.

[0055] Based on the sliding fit, the torsion frame 6 having two frame plates has a certain distance between the two frame plates based on the connection of, for example, a connecting plate. The sliding fit between the two frame plates and the end faces of the shell 3 will also produce a constraint, that is, the constraint in the direction of the edge of the shell 3, which will not cause the torsion frame 6 to move in this direction.

[0056] And then in Figure 2 In the illustrated structure, the square core 13 is located in the outer shell 3, and the outer shell is a square tube shell structure. At this time, the square core 13 is deflected 45 degrees relative to the square tube shell, that is, the edge of the square core 13 is exactly aligned with the side center of the square tube shell. At the same time, since the centroids of the square core 13 and the square tube shell coincide, four isosceles right-angled triangle cavities are formed between the square core 13 and the square tube shell, and elastic buffer blocks 15 are filled in the isosceles right-angled triangle cavities. When the square core 13 is deflected, the elastic buffer blocks 15 will be squeezed and energy will be stored. The rebound force generated by the energy storage is used to reset the square core 13, thereby generating buffering.

[0057] Regardless of the shape of the inner core, under the aforementioned technical conditions, that is, when the edges of the inner core are aligned with the side centers of the outer shell 3, the cavity formed between the inner core and the outer shell 3 is an isosceles triangle structure, the only difference being the size of the vertex angle of the isosceles triangle.

[0058] As an implicit technical condition, in the initial state, the core of the inner core coincides with the core of the outer shell 13 .

[0059] The two ends of the inner core are fixedly connected to the large ends of the frame plates on the corresponding sides. The fixed connection is preferably connected in a detachable manner in consideration of maintainability. Figure 5 In the illustrated structure, it can be seen that the square core 13 constituting the inner core is assembled with the frame plate by screws.

[0060] Since the width of the elastic buffer roller can ear is relatively large, Figure 5The use of the hexagonal head screw 4 shown in the figure is not suitable for fixing the two frame plates on the square core 13 at the same time in a full-length manner. If the bolt or screw is too long, on the one hand, the standard screw length is not enough, that is, the standard bolt full length does not meet the width requirement of the square core 13; on the other hand, the relatively long screw or bolt has a reduced torsional shear resistance. Therefore, in Figure 5 In the illustrated structure, the two frame plates are connected to the square core 13 by screws respectively.

[0061] At this time, the square core 13 is formed by opening holes at both ends. Figure 2 The threaded hole 16 is shown in FIG.

[0062] from Figure 3 As can be seen in the figure, when the elastic buffer roller ear is installed on a tank cage, for example, it needs to be tilted forward, and because the rubber wheel or polyurethane wheel on the roller 7 will wear, the tilt angle needs to be adjusted according to the actual working conditions and usage time. Figure 4 In the illustrated structure, the fixing holes for fixing the frame plate on the square core 13 are as follows: Figure 4 As shown in the figure, the number of the arc-shaped sliding holes 17 is generally an even number, and they are evenly distributed on a predetermined pitch circle.

[0063] During installation, the deflection angle of the torsion frame 6 is adjusted in advance, and then it is fixed by tightening, for example, the hexagonal head screw 4, so as to have better adaptability to working conditions.

[0064] Obviously, the center of the arc-shaped sliding hole 17 falls on the center of the pitch circle.

[0065] exist Figure 1 and Figure 5 In the illustrated structure, a backing plate 14 with through holes for screws to pass through is mounted on the outside of the frame plate to improve the tightening ability of the screw assembly.

[0066] As for the inner core, it can be a whole, or in some embodiments, it can be two sub-cores, which are arranged in series in the cavity of the outer shell 3 but may not be connected to each other.

[0067] The two sub-core bodies may also be positioned using a positioning component to facilitate, for example, the insertion and tightening of screws. In this case, the two sub-core bodies may be supported or connected using rods, blocks or other structures.

[0068] Since the elastic buffering force of the elastic buffer roller jar ear does not need to be too large, and for example the square core 13 can be made of steel or aluminum alloy, the material strength is relatively sufficient. Therefore, from the perspective of overall weight reduction, the inner core can be appropriately reduced in weight. Therefore, in a preferred embodiment, the inner core is a hollow polygonal cylinder.

[0069] Figure 1 and Figure 5 Two examples are shown, where Figure 1 The roller 7 is installed in a cantilevered manner. Figure 5 The roller 7 is supported and installed at both ends. The applicable scopes of the two roller ears are slightly different, which are the same as those of the standard roller ears, and will not be described in detail here.

[0070] Figure 1 Upper and Figure 5 The upper part shows a way of installing the roller shaft 10. Overall, the roller shaft seat is a split roller shaft seat, so that the roller shaft seat has a pressure block 18 and a seat body, wherein the pressure block 18 and the seat body each have half a seat hole, thereby forming a split structure.

[0071] After the roller shaft 10 is positioned on, for example, half of the seat hole on the seat body, it is engaged with a pressing block 18 and then fixed with screws.

[0072] exist Figure 1 and Figure 5 The illustrated structure adopts a method of fixing the pressure block 18 by using a joint bolt 9. The bolt head of the joint bolt 9 is a ring, which can be penetrated by a pin shaft 11. Here, the joint bolt 9 has the freedom to rotate around the pin shaft 11, so that it has the technical conditions for the use of the joint bolt 9 and has the general characteristics of the joint bolt 9.

[0073] from Figure 1 and Figure 5 As can be seen in the figure, the roller shaft 10 is a stepped shaft, and the part thereof for cooperating with the frame plate has two shaft sections with relatively small diameters. The inner side of the shaft section has a shoulder for positioning, and the outer side of the frame plate can be locked using, for example, a round nut.

[0074] In some embodiments, the roller shaft 10 can also be directly inserted into the corresponding seat hole and then locked using a set screw.

[0075] Furthermore, in some embodiments, the shaft segment and the seat hole may be connected by a profile connection.

Claims

1. An elastic buffer roller can ear, characterized in that: include: The torsion frame comprises a pair of parallel frame plates and a connector for connecting the two frame plates; a roller shaft seat is provided at one end of the torsion frame; A roller, mounted on the roller shaft seat via a roller shaft; The outer shell is a polygonal column shell and is located between two frame plates; A base, fixedly connected to the shell; The inner core is a polygonal prism located in the outer shell, the number of edges of the polygonal prism is the same as the number of edges of the polygonal prism shell, and in the initial state, the edges of the polygonal prism are aligned with the side midline of the polygonal prism shell, and a plurality of triangular cavities are formed between the polygonal prism and the polygonal prism shell; and The elastic body is a triangular prism having the same cross section as the triangular cavity and is built into the triangular cavity; The two ends of the inner core are fixedly connected to the other end of the frame plate located on the corresponding side.

2. The elastic buffer roller can ear according to claim 1, characterized in that: The outer shell is a regular tetrahedral shell; the inner core is correspondingly a regular tetrahedral prism.

3. The elastic buffer roller can ear according to claim 1, characterized in that: The inner core and the frame plate are fixed by screws; Screw holes are correspondingly opened at both ends of the inner core, and the two frame plates are fixed to the inner core by screws respectively.

4. The elastic buffer roller can ear according to claim 3, characterized in that: The two frame plates are provided with arc-shaped sliding holes having the same number as the screw holes on the dividing circles corresponding to the screw holes.

5. The elastic buffer roller can ear according to claim 3 or 4, characterized in that: A backing plate with through holes for screws to pass through is mounted on the outer side of the frame plate.

6. The elastic buffer roller can ear according to claim 1, 3 or 4, characterized in that: The inner core is composed of two separate core bodies; The two cores are disconnected or connected.

7. The elastic buffer roller can ear according to claim 1, characterized in that: The inner core is a hollow polygonal column.

8. The elastic buffer roller can ear according to claim 1, characterized in that: The roller is located between two frame plates or outside one frame plate.

9. The elastic buffer roller can ear according to claim 1, characterized in that: The roller shaft and the seat hole of the roller shaft seat are connected by a profile connection or the matching part of the roller shaft and the seat hole is a round shaft section, and the roller shaft is fixed to the seat hole by pressing or tightening screws.

10. The elastic buffer roller can ear according to claim 9, characterized in that: The roller shaft seat is a split roller shaft seat, and has a pressing block and a seat body; Among them, the seat body is equipped with a joint bolt through a pin shaft, and the pressing block is correspondingly provided with a bolt hole; The pressure block is passed through the joint bolt and locked with a nut.

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