Torsion cylinder roller cage shoe
By adopting the fixed connection and chemical combination of the outer cylinder to the base in the torsion cylinder roller tank ear, the problems of welding defects and heat-affected zones in the prior art are solved, and lower assembly difficulty and higher maintenance.
Patent Information
- Application Number
- CN202421848884.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The existing torque cylinder roller tank ears have welding defects and heat-affected zone problems during assembly, resulting in adhesive failure and rubber material damage, and poor maintenance.
The outer cylinder is fixedly connected to the base, and the inner core, elastomer and the outer cylinder are connected through chemical combination to reduce welding use, and a detachable and connected torsion frame is designed to simplify assembly and maintenance.
It reduces assembly difficulty, improves maintainability, avoids welding defects and heat-affected zone problems, and ensures the stability and long life of torque cylinder roller tank ears.
Smart Images
Figure CN222743846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a torsion cylinder roller tank ear, which belongs to an elastic buffer roller tank ear. Background Art
[0002] At present, in addition to the roller ears (referred to as standard roller ears) that meet the coal industry standard MT236-2011 (the standard name is "Rectangular Steel Tankway Roller Ears"), there is also a type of roller ear derived from German technology. Unlike the standard roller ears that use telescopic cushioning, this type of roller ear derived from German technology directly obtains cushioning by twisting, which can be defined as elastic buffer roller ears. There are two main types of elastic buffer roller ears, one of which is the torsion cylinder roller ear, which directly uses the deformation of the cylinder formed by the elastic body in the torsion state and relies on its own elastic recovery deformation to provide cushioning.
[0003] A known torsion cylinder roller ear includes a rigid and fixed inner cylinder, a torsion cylinder made of a material such as rubber is mounted on the rigid inner cylinder as a base, the torsion cylinder and the inner cylinder are bonded together, and a swing arm is mounted on the outer surface of the torsion cylinder. The installation method is based on the premise that the swing arm has a sleeve, the torsion cylinder is mounted in the sleeve, and the sleeve and the torsion cylinder are also bonded together. In order to generate buffering by torsion, the inner cylinder is required to be fixed, so the two ends of the inner cylinder need to be connected through, for example, two side plates, and then the two side plates are fixedly connected to a fixed seat. At this time, the swing arm and the fixed seat are equivalent to being connected through a torsion cylinder that can provide torsion buffering. The outer end of the swing arm is equipped with a roller. When the roller vibrates during operation, the swing arm will swing, thereby causing the torsion cylinder to twist, and buffering is achieved with the help of the elasticity of the torsion cylinder.
[0004] In the known torque cylinder roller ear, the inner cylinder and the outer cylinder (i.e., the sleeve, which is also a rigid cylinder) are connected in a nested manner, and the inner cylinder and the outer cylinder are the torque cylinder. The three cylinders need to be bonded to form an assembly. The bonding ability of the bonding has relatively high requirements on the bonding method. Therefore, the connection between the three cylinders needs to be completed in the factory. However, in the known torque cylinder roller ear, the torsion frame and the outer cylinder need to be assembled by welding. Welding is not only prone to welding defects, but also has a relatively large heat-affected zone. Whether it is the adhesive used to bond the torque cylinder to the other two cylinders or the torque cylinder itself, it will be affected by the heat-affected zone, resulting in failure of the adhesive or local damage to the torque cylinder made of rubber material, for example.
[0005] Please note that the coking temperature of rubber is generally between 200℃ and 400℃, while the coarse grain area of the heat affected zone of carbon steel is between 1100℃ and 1300℃, and the fine grain area temperature is between 910℃ and 1300℃. The temperature of some phase change areas other than these is also much higher than the coking temperature of rubber. Under this condition, the torsion frame and the outer cylinder need to be pre-welded together, and the outer cylinder, the torque cylinder and the inner cylinder can be assembled after the outer cylinder cools down. Affected by this, not only is the assembly difficult, but also the maintainability of the torque cylinder roller ears is relatively poor because the torsion frame cannot be disassembled alone. Utility Model Content
[0006] The utility model aims to provide a torque cylinder roller tank ear which has relatively low assembly difficulty and relatively good maintainability.
[0007] The torsion cylinder roller ear according to the embodiment of the utility model comprises:
[0008] 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;
[0009] A roller, mounted on the roller shaft seat via a roller shaft;
[0010] The outer cylinder is a cylinder, and the outer cylinder is located between the two frame plates;
[0011] A base, fixedly connected to the outer cylinder;
[0012] An inner core having a cylindrical outer profile, with assembly holes at both ends and fixedly connected to the frame plate on the corresponding side; and
[0013] The elastic body is cylindrical and is sleeved on and combined with the inner core. The outer contour of the elastic body is embedded in the outer cylinder and combined with the outer contour.
[0014] Optionally, the inner core and the frame plate are fixed by screws;
[0015] Threaded holes are correspondingly opened at both ends of the inner core, and the two frame plates are fixed to the inner core using screws respectively.
[0016] Optionally, the two frame plates are provided with arc-shaped sliding holes on the pitch circles corresponding to the threaded holes, the number of which is the same as the threaded holes.
[0017] Optionally, a backing plate with through holes for screws to pass through is mounted on the outside of the frame plate.
[0018] Optionally, the inner core is a cylinder with both ends of the cylinder sealed by end plates;
[0019] The end plate is provided with threaded holes correspondingly connected to the torsion frame.
[0020] Optionally, the end plate has a central protrusion;
[0021] Correspondingly, a positioning hole is opened on the torsion frame and is positioned at the central protrusion.
[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 mounting seat;
[0025] Wherein, a joint bolt is installed on the mounting seat through a pin shaft, and a bolt hole is opened on the pressing block accordingly;
[0026] The pressure block is passed through the joint bolt and locked with a nut.
[0027] Optionally, the length of the inner core is greater than the lengths of the outer tube and the elastic body, so that a gap is left between the end faces of the outer tube and the elastic body and the frame plate to avoid interference.
[0028] According to the torque cylinder roller ear of the embodiment of the utility model, the outer cylinder is fixedly connected to the base, and the assembly formed by the two is relatively small, and has no special influence on the assembly sequence of the whole. At the same time, the inner core located in the outer cylinder is fixedly connected to the torsion frame at both ends. The outer cylinder is a cylinder, and the inner core has an outer cylindrical surface. A cylindrical elastic body is arranged between the two and is combined with the elastic body. Correspondingly, a roller is installed on the torsion frame. When the vibration generated by the roller is running, the torsion frame generates a swinging motion and twists the elastic body. Since the torsion frame shields the outer cylinder, the inner core and the elastic body from the outside and is directly connected to the inner core, no additional connecting plate is required, and the whole is relatively beautiful and compact. Since the frame plate is outside during installation, it is easier to realize the alignment of the frame plate and the inner core, and the more optimal connection method that can be selected is a detachable connection, that is, the torsion frame can be removed separately, so the difficulty of subsequent maintenance and assembly is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the front view structure of the torque cylinder roller ear in the first embodiment (partial section).
[0030] Figure 2 It is a schematic diagram of the right view of the torque cylinder roller ear in one embodiment.
[0031] Figure 3 It is a schematic diagram of the front view structure of the torque cylinder roller ear in the second embodiment (partial section).
[0032] Figure 4 It is a schematic diagram of the main structure of the base, inner core, torque cylinder and outer cylinder assembly (referred to as the support buffer assembly) in one embodiment.
[0033] Figure 5 It is a schematic diagram of the right side structure of the base, inner core, torque cylinder and outer cylinder assembly in one embodiment.
[0034] Figure 6 It is a schematic diagram of the right view of the torsion frame in one embodiment.
[0035] Figure 7 It is a schematic diagram of the front view structure of the torsion frame in one embodiment.
[0036] In the figure: 1. mounting hole, 2. bottom plate, 3. vertical plate, 4. outer cylinder, 5. torque cylinder, 6. inner core, 7. roller, 8. roller shaft, 9. nut with cover, 10. joint bolt, 11. pin shaft, 12. cotter pin, 13. arm plate, 14. gap, 15. hexagon head screw, 16. spring washer, 17. positioning protrusion, 18. positioning hole, 19. pad, 20. connecting plate, 21. pressure block, 22. mounting seat, 23. cavity, 24. threaded hole, 25. arc sliding hole, 26. seat hole. DETAILED DESCRIPTION
[0037] exist Figure 1~Figure 3 In the illustrated torsion barrel roller ear structure, the base, the torsion frame and the buffer assembly for providing buffering are included, wherein the buffer assembly can be completed in the factory stage, and the torsion frame can be connected with the buffer assembly in the factory stage, or can be assembled on site. Figures 1 to 3 In the illustrated structure, the base includes a bottom plate 2 and a pair of vertical plates 3 welded to the bottom plate 2. The two vertical plates 3 are parallel to each other and have a given span between them.
[0038] An even number of mounting holes 1 are provided on the bottom plate 2 to mount the torque cylinder roller ear on, for example, a cage. The bottom plate 2 shown in the figure is a plate structure, but is not limited to this structure, although most bottom plates 2 in the field of roller ears are plate structures.
[0039] The base and the outer tube 4 are fixedly connected, generally by welding, because the probability of damage to the outer tube 4 and the base is relatively low, the necessity of using a detachable connection is relatively low, and welding is a connection method with the best reliability.
[0040] The relatively fixed outer cylinder 4 and the inner core 6 and the torque cylinder 5 formed by the elastic body located in the outer cylinder 4 are assembled into a buffer assembly. The three are connected as a whole by chemical bonding, generally by bonding, which can be completed at the factory stage. The connection method of the torque cylinder 5 and other components belongs to the common sense in the field and will not be repeated here.
[0041] Since the vertical plate 3 will not block the axial ends of the buffer assembly when the buffer assembly is assembled, the assembly sequence is relatively flexible, thereby making the overall assembly difficulty relatively low.
[0042] The outer cylinder 4 and the torque cylinder 5 are both cylindrical, and the inner core 6 can be a simple cylinder because it needs to be connected to the torque frame, and a threaded hole can be opened on the end surface of the cylinder. In some embodiments, end plates can be provided at both ends of the inner core 6, and threaded holes can be opened on the end plates. When the end plates are provided, the opening positions of the threaded holes are relatively flexible.
[0043] Since the outer cylinder 4 is fixedly arranged, the inner core 6 needs to be fixedly connected to the torsion frame, which requires that the inner core 6 can only be connected to the torsion frame at its two ends. The traditional torsion cylinder roller ears directly weld the torsion frame to the outer cylinder 4. Relatively speaking, the torsion frame according to the embodiment of the utility model has better integrity and more flexible installation method.
[0044] Furthermore, in an embodiment of the present invention, the torsion frame includes a pair of parallel frame plates, such as Figure 1 and Figure 3 The arm plate 13 shown in the figure, at this time, the torsion frame as a whole can also be understood as a torsion arm. The overhanging end of the torsion frame has a roller shaft seat, and the roller 7 is installed on the roller shaft seat through the roller shaft 8.
[0045] The two arm plates 13 are substantially the same in shape, and are connected as a whole by a connecting plate 20 between the two arm plates 13, and are connected by welding, so the overall reliability is relatively good.
[0046] The outer surface of the connecting plate 20 is roughly flush with the outer edge of the arm plate 13 and is smooth as a whole. At this time, it is necessary to groove the portion of the arm plate 13 used for connection with the connecting plate 20 to accommodate the end of the connecting plate 20, and then connect them by welding.
[0047] In the figure, there are two pairs of connecting plates, one of which is located in the middle of the torsion frame, and the other end is located at the end where the torsion frame is connected to the buffer assembly. Correspondingly, the roller 7 is installed at the overhanging end of the torsion frame, that is, the other end of the torsion frame.
[0048] In addition, connecting the connecting plate 20 at the outer edge of the arm plate 13 is relatively advantageous for avoiding motion interference. Figure 2 As shown, this connection method can make the torsion frame smoother as a whole and more beautiful in appearance.
[0049] exist Figure 4 and Figure 5 The illustrated structure includes a base, an inner core 6, a torque cylinder 5 and an outer cylinder 4. The structure as a whole is used to achieve support and buffering, so it is referred to as a support buffer assembly in the following text. Considering the motion interference, relatively speaking, Figure 4 and Figure 5 The support buffer assembly shown is used to support the torsion frame, and in order to meet 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 8 in the reference plane), and the part of the torsion frame for installing the roller shaft 8 only needs to meet the installation of the roller shaft 8 and does not need to be too wide. Figure 2 In the illustrated structure, the frame plate is generally V-shaped, and the large end is rounded, relative to, for example Figure 4 and Figure 5 In the support buffer assembly shown in the figure, the frame plate roughly surrounds the support buffer assembly, which is not easy to cause injuries due to relatively sharp edges and corners.
[0050] For elastomers, such as Figure 1 The torque cylinder 5 shown in the figure can be made of elastic materials such as rubber.
[0051] from Figure 1 and Figure 3 As can be seen, the arm plate 13 is engaged with the end surface of the inner core 6, and a gap 14 is left between the torque cylinder 5 and the outer cylinder 4. In addition, the outer cylinder 4 can also be engaged with the arm plate 13, and a polytetrafluoroethylene slide plate, for example, is provided on the joint surface of the two to ensure that the torsion frame does not produce axial movement.
[0052] It should be known that the binding force between the torque cylinder 5 and the outer cylinder 4 and the inner core 6 can meet the frequent swinging of the torsion frame. It can be seen that the binding force between the torque cylinder 5 and the outer cylinder 4 and the inner core 6 is relatively large, and even if the gap 14 exists, the axial movement of the torsion frame can basically not occur.
[0053] In some implementations, it is preferred that the arm plate 13 is engaged with the outer cylinder 4 , and in this case, it is further preferred to provide a polytetrafluoroethylene slide plate at the position where the arm plate 13 is engaged with the outer cylinder 4 .
[0054] It should be known that the roller 7 can be exactly the same as the roller 7 used in the standard roller can ear. Under this condition, the roller 7 is usually mounted on the roller shaft 8 through a bearing. In other words, the roller shaft 8 is often fixed. If the detachability is not considered, the roller shaft 8 can be fixed to the roller shaft seat in an irremovable manner, such as welding.
[0055] However, even standard roller tank ears are usually mounted on the roller shaft seat in a detachable manner to improve overall maintainability.
[0056] In contrast, as mentioned above, the outer cylinder 4 is also located between the two frame plates, so that most of the structure or construction of the buffer assembly is shielded by the torsion frame. The frame plate is generally V-shaped, and the large end is rounded. The shielding and smoothness of the rounded head can make the torsion cylinder roller tank ear beautiful as a whole, and it is not easy to cause injuries during assembly or maintenance.
[0057] Figure 1 and Figure 3 As can be seen in the figure, the inner core 6 is fixed to the frame plate by screws. As mentioned above, whether the inner core 6 is cylindrical or sealed at both ends, a threaded hole 24 can be opened on the end surface of the inner core 6. If a threaded hole 24 is opened on the cylindrical inner core 6, the wall thickness of the inner core 6 will be relatively large, which is not conducive to the overall weight reduction of the torque cylinder roller can ear. Therefore, in a preferred embodiment, end plates are provided at both ends of the cylindrical inner core 6, and then threaded holes 24 are opened on the end plates.
[0058] However, in some embodiments, the end plate may be a hollow plate, commonly known as a ring, and the size of the ring may be as narrow as possible while satisfying the requirements for opening the threaded hole 24 .
[0059] from Figure 2 As can be seen in the figure, when the torque cylinder 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 6 In the illustrated structure, the fixing holes for fixing the frame plate on the inner core 6 are as follows: Figure 6 As shown in the figure, the number of the arc-shaped sliding holes 25 is generally an even number, and they are evenly distributed on a predetermined pitch circle.
[0060] During installation, the deflection angle of the torsion frame is adjusted in advance, and then it is fixed by tightening, for example, by means of hexagonal screws 15, so as to have better adaptability to working conditions.
[0061] Obviously, the center of the arc-shaped sliding hole 25 falls on the center of the corresponding pitch circle.
[0062] In addition, Figure 1 and Figure 3 In the illustrated structure, a backing plate 19 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.
[0063] In addition, for the end plate, if a disc-shaped member is used, it is provided with a central protrusion in the center, such as Figures 1 to 3 The positioning protrusion 17 shown in the figure, and the positioning hole 18 is opened on the corresponding frame plate of the corresponding end plate, such as Figure 6 The positioning hole 18 shown in the figure is positioned based on the shaft-hole matching mode between the two, so as to facilitate the assembly of the torsion frame.
[0064] Figure 1 and Figure 3Two types of torque cylinder roller ears are shown, the only difference being the installation position of the roller 7, whether it is installed between two frames or outside the frames. Each has its own advantages and disadvantages, and is also commonly found in standard roller ears, which is common knowledge in the field and will not be elaborated here.
[0065] Figure 1 Upper and Figure 3 The upper part shows a way of installing the roller shaft 8. Overall, the roller shaft seat is a split roller shaft seat, so that the roller shaft seat has a pressure block 21 and a mounting seat 22, wherein the pressure block 21 and the mounting seat 22 each have half a seat hole, thereby forming a split structure.
[0066] After the roller shaft 8 is positioned on, for example, half of the seat hole on the mounting seat 22, the pressing block 21 is used to snap it in place, and then it is fixed with screws.
[0067] exist Figure 1 and Figure 3 The illustrated structure adopts a method of fixing the pressure block 21 by using a joint bolt 10. The bolt head of the joint bolt 10 is a ring, which can be penetrated by a pin shaft 11. Here, the joint bolt 10 has the freedom to rotate around the pin shaft 11, so that it has the technical conditions for the use of the joint bolt 10 and has the general characteristics of the joint bolt 10.
[0068] from Figure 1 and Figure 3 As can be seen in the figure, the roller shaft 8 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.
[0069] In some embodiments, the roller shaft 8 can also be directly inserted into the corresponding seat hole and then locked using a set screw.
[0070] Furthermore, in some embodiments, the shaft segment and the seat hole may be connected by a profile connection.
Claims
1. A torsion cylinder roller 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 cylinder is a cylinder, and the outer cylinder is located between the two frame plates; A base, fixedly connected to the outer cylinder; An inner core having a cylindrical outer profile, with assembly holes at both ends and fixedly connected to the frame plate on the corresponding side; and The elastic body is cylindrical and is sleeved on and combined with the inner core. The outer contour of the elastic body is embedded in the outer cylinder and combined with the outer contour.
2. The torsion cylinder roller ear according to claim 1, characterized in that: The inner core and the frame plate are fixed by screws; Threaded holes are correspondingly opened at both ends of the inner core, and the two frame plates are fixed to the inner core using screws respectively.
3. The torsion barrel roller ear according to claim 2, characterized in that: The two frame plates are provided with arc-shaped sliding holes having the same number as the threaded holes on the dividing circles corresponding to the threaded holes.
4. The torsion cylinder roller ear according to claim 2 or 3, characterized in that: A backing plate with through holes for screws to pass through is mounted on the outer side of the frame plate.
5. The torsion cylinder roller ear according to claim 1, characterized in that: The inner core is a cylinder with both ends sealed by end plates; The end plate is provided with threaded holes correspondingly connected to the torsion frame.
6. The torsion cylinder roller ear according to claim 5, characterized in that: The end plate has a central protrusion; Correspondingly, a positioning hole is opened on the torsion frame and is positioned at the central protrusion.
7. The torsion barrel roller ear according to claim 1, characterized in that: The roller is located between two frame plates or outside one frame plate.
8. The torsion cylinder roller 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.
9. The torsion cylinder roller ear according to claim 8, characterized in that: The roller shaft seat is a split roller shaft seat, and has a pressing block and a mounting seat; Wherein, a joint bolt is installed on the mounting seat through a pin shaft, and a bolt hole is opened on the pressing block accordingly; The pressure block is passed through the joint bolt and locked with a nut.
10. The torsion cylinder roller ear according to claim 1, characterized in that: The length of the inner core is greater than the lengths of the outer tube and the elastic body, so that a gap is left between the end surface of the outer tube and the end surface of the elastic body and the frame plate to avoid interference.