Roller way convenient to disassemble and replace
By designing a roller structure that is easy to disassemble, the roller ring wraps the roller core and achieves rapid disassembly through the connector, the problem of press dependence during roller replacement is solved, shortening down time and improving production efficiency.
Patent Information
- Application Number
- CN202420062784.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-10
AI Technical Summary
In rod rolling production, the outer peripheral surface of the roller comes into contact with the steel for a long time, causing grooves to form, resulting in scratches of the steel, and a 100t press is required for replacement, which makes the removal work troublesome and slow, resulting in a long downtime and reduces production efficiency.
A roller track is designed for easy disassembly, including a roller wheel core, a roller shaft and a roller ring. The roller ring is mounted on the roller wheel core and can be detached and connected through the connecting parts to avoid the roller wheel core directly from the steel material. Contact, use fixed discs and positioning pins to achieve rapid disassembly, reducing dependence on the press.
The roller core is wrapped by the roller ring, which avoids scratches of the roller core, simplifies the replacement process, shortens downtime, reduces the labor burden of workers, and improves the wear resistance of the roller ring through the cladding layer. Extend service life.
Smart Images
Figure CN222326245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel rolling production, in particular to a roller table which is easy to dismantle and replace. Background Art
[0002] The conveyor roller used in the bar rolling production includes a roller shaft and a roller. Since the outer circumference of the roller is in contact with the steel for a long time, grooves will be formed on the outer circumference of the roller. When the steel is conveyed, the surface where the steel contacts the roller will be scratched due to the presence of the grooves.
[0003] In order to avoid scratching the steel, the entire line needs to be shut down to replace the rollers with grooves on the surface. The rollers and roller shafts in the conveyor rollers use interference fit. When removing the rollers, a 100t press is required. The removal work is cumbersome and slow, resulting in long downtime. Utility Model Content
[0004] (I) The problem to be solved by the utility model is that when replacing a roller with a damaged surface, a press is required to remove it, which is troublesome and slow, resulting in long downtime and reduced production efficiency of bar rolling.
[0005] (II) Technical solution
[0006] A roller table that is easy to disassemble and replace, comprising a roller table wheel core, a roller table shaft and a roller ring, wherein the roller table wheel core is provided with an axial cavity along its axial direction, and the roller table shaft is interference fit with the axial cavity;
[0007] The roller ring is in a circular tube shape, and is sleeved on the roller wheel core and is coaxially arranged with the roller wheel core;
[0008] The roller ring and the roller wheel core are detachably connected via a connecting piece.
[0009] According to one embodiment of the utility model, the connecting member includes two fixing plates and a plurality of positioning pins;
[0010] The roller ring and the roller wheel core are provided with a plurality of corresponding semi-cylindrical holes on the end surface of the same end, and the semi-cylindrical holes on the end surface of the roller ring and the corresponding semi-cylindrical holes on the end surface of the roller wheel core are spliced to form a pin shaft hole adapted to the positioning pin, and the positioning pin is inserted into the pin shaft hole;
[0011] The fixing disk is an annular plate, and the inner diameter of the fixing disk is not less than the diameter of the shaft cavity;
[0012] The two fixing plates are respectively attached to the two end surfaces of the roller wheel core, and are connected to the end surfaces of the roller wheel core via bolts.
[0013] According to an embodiment of the utility model, a plurality of one-to-one corresponding semi-cylindrical holes are provided on the end surfaces of both ends of the roller ring and the roller wheel core.
[0014] According to an embodiment of the utility model, the pin holes are evenly arranged around the axis of the roller wheel core.
[0015] According to an embodiment of the present invention, the outer diameter of the fixed disk is greater than the outer diameter of the roller ring.
[0016] According to an embodiment of the utility model, a plurality of bolt holes matching the bolts are formed on the end surface of the roller wheel core, and a plurality of circular holes corresponding to the bolt holes are formed on the fixing plate.
[0017] According to an embodiment of the utility model, the end surfaces of the roller ring and the roller wheel core located at the same end are flush.
[0018] According to an embodiment of the present invention, a cladding layer is formed on the outer surface of the roller ring.
[0019] Beneficial effects of the utility model:
[0020] The utility model provides a roller which is easy to disassemble and replace, comprising a roller wheel core, a roller shaft and a roller ring. The roller wheel core is provided with an axial cavity along its axial direction, and the roller shaft and the axial cavity are interference fit; the roller ring is in a circular tube shape, the roller ring is sleeved on the roller wheel core, and is coaxially arranged with the roller wheel core; the roller ring and the roller wheel core are detachably connected through a connecting piece.
[0021] Since the roller core is no longer in direct contact with the rod, the roller core is prevented from being scratched, and the roller ring wraps the roller core and the roller ring and the roller core are detachably connected through a connector, so the roller ring can be quickly replaced. In this way, there is no need to use a press to remove the roller core, which greatly shortens the replacement time of the conveyor roller, reduces the labor burden of the workers, and greatly shortens the downtime. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 A schematic diagram provided for an embodiment of the utility model.
[0024] Icons: 1. Fixed plate; 2. Roller ring; 3. Roller wheel core; 4. Locating pin; 5. Bolt. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] like Figure 1 As shown, an embodiment of the utility model provides a roller that is easy to disassemble and replace, including a roller wheel core 3, a roller shaft and a roller ring 2. The roller wheel core 3 is provided with an axial cavity along its axial direction, and the roller shaft and the axial cavity are interference fit; the roller ring 2 is in a circular tube shape, and the roller ring 2 is sleeved on the roller wheel core 3 and coaxially arranged with the roller wheel core 3; the roller ring 2 and the roller wheel core 3 are detachably connected by a connecting piece.
[0027] In this embodiment, the roller ring 2 wraps the roller wheel core 3. When conveying the rod, the outer peripheral surface of the roller ring 2 is in direct contact with the rod. After long-term use, grooves will appear on the outer peripheral surface of the roller ring 2. In order to avoid scratching the rod, the roller ring 2 needs to be replaced. Since the roller ring 2 and the roller wheel core 3 are detachably connected by a connecting piece, the roller ring 2 can be quickly replaced.
[0028] In this embodiment, a roller ring 2 is arranged on the outside of the roller wheel core 3 (i.e., the roller), so that the roller wheel core 3 is no longer in direct contact with the rod, thereby avoiding scratches on the roller wheel core 3 and eliminating the need to use a press to remove the roller wheel core 3. Furthermore, since the roller ring 2 and the roller wheel core 3 are detachably connected via a connecting piece, the roller ring 2 can be quickly replaced, thereby greatly shortening the replacement time of the conveyor roller and greatly reducing the downtime.
[0029] As a preferred embodiment, a plurality of semi-cylindrical first recessed holes are evenly opened on the end faces at both ends of the roller wheel core 3 around the axis of the roller wheel core 3, and a plurality of semi-cylindrical second recessed holes are evenly opened on the end faces at both ends of the roller ring 2 around the axis of the roller ring 2. The first recessed holes and the second recessed holes correspond one to one, and the first recessed holes and the corresponding second recessed holes are spliced to form a pin shaft hole.
[0030] Preferably, the connector includes two fixed disks 1 and a plurality of positioning pins 4, and the positioning pins 4 are inserted into the pin shaft holes. The fixed disk 1 is in the shape of a circular ring plate, and the fixed disk 1 is attached to the end surface of the roller wheel core 3. It should be noted that the inner diameter of the fixed disk 1 is not less than the diameter of the shaft cavity, so that the roller shaft does not contact the inner wall of the fixed disk 1, so that the roller shaft can smoothly pass through the inner hole of the fixed disk 1.
[0031] Furthermore, the two fixing plates 1 are respectively connected to the two end surfaces of the roller wheel core 3 via bolts 5 .
[0032] It should be noted that the positioning pin 4 serves to limit the roller ring 2 to prevent the roller ring 2 and the roller wheel core 3 from rotating relative to each other, thereby ensuring that the roller wheel core 3 and the roller ring 2 can achieve torque transmission.
[0033] In addition, the end surfaces of the roller ring 2 and the roller wheel core 3 at the same end are flush with each other, so that the roller ring 2 can wrap around the entire outer side surface of the roller wheel core 3 .
[0034] Optionally, the length of the locating pin 4 is the same as the depth of the pin shaft hole, so that when the fixed disk 1 is attached to the end face of the roller wheel core 3, the end face of the locating pin 4 will contact the side face of the fixed disk 1. At this time, the locating pin 4 is blocked by the fixed disk 1 and cannot move in the pin shaft hole, so as to better ensure the torque transmission between the roller wheel core 3 and the roller ring 2.
[0035] Preferably, the outer diameter of the fixed plate 1 is larger than the outer diameter of the roller ring 2, and the portion of the fixed plate 1 protruding from the roller ring 2 can limit the rod. In this way, when the rod tilts during transportation, the blocking effect of the fixed plate 1 can prevent the rod from rolling off the conveying roller.
[0036] Optionally, four pin holes are provided at the same end of the roller ring 2 and the roller wheel core 3, and eight pin holes are provided at both ends, and correspondingly, eight positioning pins 4 are provided. It should be noted that the number of pin holes at the same end of the roller ring 2 and the roller wheel core 3 is not specifically limited, and can be set to 6 or 8, for example.
[0037] Optionally, four first concave holes are evenly formed on the first end of the roller wheel core 3, and four second concave holes are evenly formed on the first end of the roller ring 2, and the four first concave holes and the four second concave holes form four pin holes. No first concave hole is provided on the end surface of the second end of the roller wheel core 3, and no second concave hole is provided on the end surface of the second end of the roller ring 2. In this case, the conveying roller only needs four positioning pins 4, which can also play the role of limiting the roller ring 2 to prevent the roller ring 2 and the roller wheel core 3 from rotating relative to each other.
[0038] Preferably, eight bolt holes matching the bolts 5 are respectively provided on the end faces of both ends of the roller wheel core 3, and the eight bolt holes on the end faces of the roller wheel core 3 are evenly arranged around the axis thereof. Eight circular holes are provided on the two fixing plates 1, and the circular holes are evenly arranged around the axis of the fixing plates 1.
[0039] When installing the roller ring 2, first insert the roller ring 2 from one end of the roller wheel core 3 until the end face of the roller ring 2 is flush with the end face of the roller wheel core 3. Then rotate the roller ring 2 so that the second concave hole on the end face of the roller ring 2 and the first concave hole on the roller wheel core 3 are spliced to form a pin hole, then insert multiple positioning pins 4 into the pin hole, and then fit the two fixing plates 1 to the two end faces of the roller wheel core 3, then rotate the fixing plates 1 so that the circular holes on the fixing plates 1 are aligned with the bolt holes on the roller wheel core 3, and finally use bolts 5 to connect the fixing plates 1 and the roller wheel core 3.
[0040] by Figure 1 The specific process of removing the roller ring 2 is explained from the perspective of the conveyor roller. First, remove the bolts 5 on the fixed plate 1 at one end of the conveyor roller. Here, remove the bolts 5 on the fixed plate 1 on the right side, then take out the positioning pin 4 on the right side of the roller wheel core 3, and then pull out the roller ring 2 to the right. As the roller ring 2 is pulled out, the positioning pin 4 on the left side of the roller wheel core 3 will be exposed. Of course, you can also remove the bolts 5 on the fixed plate 1 on the right side. Figure 1 The roller ring 2 is taken out from the left side of the roller ring 2. It can be seen that the process of disassembling the roller ring 2 is simple, fast and time-saving, thereby greatly shortening the maintenance time of the conveyor roller table and greatly shortening the downtime.
[0041] Preferably, a cladding layer is formed on the outer surface of the roller ring 2. It should be noted that the cladding layer is prepared by laser cladding technology. Laser cladding is a technology that combines laser sintering with surface strengthening technology to prepare a protective layer on the surface of a component. It uses a laser beam to rapidly heat and melt the alloy powder and the surface of the substrate. After the beam is removed, the material cools to form a high-performance cladding layer, which finally plays a role in surface strengthening. The alloy powder used in this embodiment is wear-resistant nickel-based alloy powder NiWC-02. The outer surface of the roller ring 2 with a cladding layer has the advantages of high wear resistance, high toughness, and high temperature resistance. By arranging a cladding layer on the outer surface of the roller ring 2, the service life of the roller ring 2 is increased, thereby greatly reducing the replacement frequency of the roller ring 2 and reducing the loss of spare parts.
[0042] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and 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" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A roller table that is easy to dismantle and replace, characterized in that: It comprises a roller wheel core (3), a roller shaft and a roller ring (2), wherein the roller wheel core (3) is provided with an axial cavity along its axial direction, and the roller shaft is interference-fitted with the axial cavity; The roller ring (2) is in the shape of a circular tube, and the roller ring (2) is sleeved on the roller wheel core (3) and is coaxially arranged with the roller wheel core (3); The roller ring (2) and the roller wheel core (3) are detachably connected via a connecting piece.
2. The roller table that is easy to dismantle and replace according to claim 1 is characterized in that: The connecting member comprises two fixing plates (1) and a plurality of positioning pins (4); The roller ring (2) and the roller wheel core (3) are provided with a plurality of semi-cylindrical holes corresponding to each other on the end surface of the same end, and the semi-cylindrical holes on the end surface of the roller ring (2) and the corresponding semi-cylindrical holes on the end surface of the roller wheel core (3) are spliced to form a pin shaft hole adapted to the positioning pin (4), and the positioning pin (4) is inserted into the pin shaft hole; The fixing disk (1) is in the shape of an annular plate, and the inner diameter of the fixing disk (1) is not less than the diameter of the shaft cavity; The two fixing plates (1) are respectively attached to the two end surfaces of the roller wheel core (3), and are connected to the end surfaces of the roller wheel core (3) via bolts (5).
3. The roller table that is easy to dismantle and replace according to claim 2, characterized in that: The end surfaces of both ends of the roller ring (2) and the roller wheel core (3) are provided with a plurality of semi-cylindrical holes corresponding to each other.
4. The roller conveyor that is easy to dismantle and replace according to claim 2, characterized in that: The pin shaft holes are evenly arranged around the axis of the roller wheel core (3).
5. The roller table that is easy to dismantle and replace according to claim 2, characterized in that: The outer diameter of the fixed disk (1) is greater than the outer diameter of the roller ring (2).
6. The roller table that is easy to dismantle and replace according to claim 2, characterized in that: A plurality of bolt holes matching the bolts (5) are provided on the end surface of the roller wheel core (3), and a plurality of circular holes corresponding one to one to the bolt holes are provided on the fixing plate (1).
7. The roller table that is easy to dismantle and replace according to claim 1, characterized in that: The end surfaces of the roller ring (2) and the roller wheel core (3) located at the same end are flush.
8. A roller conveyor that is easy to dismantle and replace according to any one of claims 1 to 7, characterized in that: A cladding layer is formed on the outer surface of the roller ring (2).