A roller device

Abstract

The present invention relates to a roller device, belonging to the field of installation, adjustment or replacement of rollers, roller seats or frames. Pin positioning surfaces, seat positioning surfaces and support surfaces are cut at both ends of the shaft in the roller component. The two ends of the shaft are correspondingly supported on two oppositely arranged support bodies. The two support bodies are both L-shaped structures, and have plane I matched with the seat positioning surface of the shaft, and plane II matched with the support surface of the shaft; the stop pin is inserted on the support body and cooperates with the support body to form a U-shaped structure, and the stop pin has plane III matched with the pin positioning surface of the shaft; the lower ends of the two ends of the shaft are provided with embedded grooves, and the shaft end baffle is arranged on the outer side of the support body, the upper part of which is inserted in the embedded groove, and the lower part is detachably connected to the support body through a connecting piece; plane II on the support body and the support surface on the shaft are both horizontal planes. The device realizes the online replacement of roller components without affecting the operation of the entire roller support equipment.

Description

Technical Field

[0001] The invention belongs to the field of installation, adjustment or replacement of rollers, roller seats or racks, and in particular relates to a roller support device. Background Art

[0002] Roller devices are widely used in metallurgy, mining, coal, building materials, light industry, electric power, chemical industry and other industries. Their function is to support parts that need to rotate or translate. The existing roller devices support the shaft in the form of split type or mandrel type. These two types of rollers can only be disassembled upward from the roller support. When the roller device fails and needs to be repaired, since the rollers are arranged under the track plate, and the track plate is connected to the supported parts that need to move, it is impossible to remove the shaft and rollers and other parts separately for repair, maintenance and replacement, which brings great difficulties to the repair and maintenance of the equipment and production operation. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a roller device, which can realize online replacement of roller components without affecting the operation of the entire equipment supported by the roller.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A roller device comprises a roller support and a roller component supported above the roller support; three planes are cut at both ends of the shaft in the roller component, namely a pin positioning surface, a seat positioning surface and a support surface, wherein the pin positioning surface and the seat positioning surface are correspondingly arranged at both sides of the shaft, and the support surface is arranged at the lower end of the shaft.

[0006] The roller support is mainly composed of a support body, a shaft end baffle and a stop pin; the two end heads of the shaft in the roller component are correspondingly supported on two oppositely arranged support bodies, and the two support bodies are both L-shaped structures, with a plane I matching the seat positioning surface of the shaft, and a plane II matching the support surface of the shaft; the stop pin is inserted into the support body and cooperates with the support body to form a U-shaped structure, and the stop pin has a plane III matching the pin positioning surface of the shaft; the lower ends of the two end heads of the shaft are provided with an embedding groove, the shaft end baffle is arranged on the outer side of the support body, its upper part is inserted in the embedding groove, and the lower part is detachably connected to the support body through a connecting piece.

[0007] Plane II on the support body and the support surface on the shaft are both horizontal planes.

[0008] Furthermore, the roller component includes a shaft, a sleeve, a bearing and a roller body which are coaxially mounted in sequence from the inside to the outside, wherein the sleeve is connected to the outside of the shaft by a key; there is a clearance fit between the shaft and the sleeve, as well as between the key and the sleeve, and there is an interference fit between the inner ring of the bearing and the sleeve, as well as between the outer ring of the bearing and the roller body; end covers are correspondingly provided at both ends of the roller body, the end covers are mounted outside the sleeve and are installed on the end face of the roller body by fastening pins.

[0009] Furthermore, plane I and plane II on the support body are perpendicular to each other.

[0010] Furthermore, the stop pin inserted on the support body and the plane III thereon are perpendicular to the plane II on the support body.

[0011] Furthermore, an operating rod hole is provided on the stop pin.

[0012] Furthermore, positioning bosses for limiting the axial displacement of the sleeve are correspondingly provided on the opposite surfaces of the two support bodies.

[0013] The beneficial effects of the present invention are:

[0014] When maintenance is needed, the device only needs to be disassembled to remove the roller components horizontally from the roller support, thus realizing online replacement of the roller components without affecting the operation of the entire roller support equipment. The structure is novel and simple, and easy to implement.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 is a cross-sectional view of the roller device;

[0018] Figure 2 This is a structural schematic diagram of the roller device;

[0019] Figure 3 Schematic diagram of the coordination between the shaft and the U-shaped structure.

[0020] Reference numerals:

[0021] Track plate 1, end cover 2, roller body 3, bearing 4, sleeve 5, shaft 6, key 7, stop pin 8, shaft end stop plate 9, support body 10, support 11;

[0022] Pin positioning surface 601, seat positioning surface 602, support surface 603, embedding groove 604;

[0023] Plane III 801, operating rod hole 802;

[0024] Plane Ⅰ1001, plane Ⅱ1002, positioning boss 1003. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0026] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] See also Figure 1 to Figure 3 , which is a roller device, including a roller support and a roller component supported above the roller support; three planes are cut at both ends of the shaft 6 in the roller component, namely a pin positioning surface 601, a seat positioning surface 602 and a support surface 603, wherein the pin positioning surface 601 and the seat positioning surface 602 are correspondingly arranged at both sides of the shaft 6, and the support surface 603 is arranged at the lower end of the shaft 6.

[0029] The roller support is mainly composed of a support body 10, an axis end baffle 9 and a stop pin 8; the two end heads of the axis 6 in the roller component are correspondingly supported on two oppositely arranged support bodies 10, and the two support bodies 10 are both L-shaped structures, and have a plane Ⅰ1001 that matches the seat positioning surface 602 of the axis 6, and a plane Ⅱ1002 that matches the support surface 603 of the axis 6; the stop pin 8 is inserted into the support body 10 and cooperates with the support body 10 to form a U-shaped structure, and the stop pin 8 has a plane Ⅲ801 that matches the pin positioning surface 601 of the axis 6; the lower ends of the two end heads of the axis 6 are provided with an embedding groove 604, the axis end baffle 9 is arranged on the outer side of the support body 10, its upper part is inserted in the embedding groove 604, and the lower part is detachably connected to the support body 10 through a connecting piece.

[0030] The plane II 1002 on the support body 10 and the support surface 603 on the shaft 6 are both horizontal planes.

[0031] The roller components in the roller device include a shaft 6, a sleeve 5, a bearing 4 and a roller body 3 which are coaxially mounted from the inside to the outside, wherein the sleeve 5 is connected to the outside of the shaft 6 by a key 7, which can limit the relative rotation between the sleeve 5 and the shaft 6. The shaft 6 and the sleeve 5, as well as the key 7 and the sleeve 5, are clearance fits, the inner ring of the bearing 4 and the sleeve 5, as well as the outer ring of the bearing 4 and the roller body 3 are interference fits; end caps 2 are correspondingly provided at both ends of the roller body 3, and the end caps 2 are mounted on the outside of the sleeve 5 and installed on the end surface of the roller body 3 through fastening pins.

[0032] In this solution, two support bodies 10 are arranged together on a support 11, and positioning bosses 1003 for limiting the axial displacement of the sleeve are correspondingly arranged on the opposite surfaces of the two support bodies 10. After the shaft 6, sleeve 5, bearing 4, end cover 2 and roller body 3 are assembled into a whole (roller component), the sleeve 5 can move axially relative to the shaft 6. After the roller component is assembled in place on the roller support, the sleeve 5 of the roller component is limited between the two support bodies 10 of the roller support in the length direction. The distance between the positioning bosses 1003 on the two support bodies 10 and the length difference of the sleeve 5 are the clearance of the bearing 4.

[0033] In this solution, the stop pin 8 and the support body 10 provided at the end of the shaft 6 cooperate in a detachable manner to form a U-shaped structure. To match the U-shaped structure, three planes are milled out at the end of the shaft 6, namely the pin positioning surface 601, the seat positioning surface 602 and the support surface 603. Under the premise of limiting the axial rotation of the shaft 6, these three planes can correspond to the plane III801, the plane I1001 and the plane II1002 in the U-shaped structure. Since the plane II1002 on the support body 10 and the support surface 603 on the shaft 6 are both horizontal planes, the entire roller component is horizontally supported on the roller support. Under this setting, the plane II1002 and the track plate 1 (supported by the roller body 3) jointly limit the freedom of the shaft 6 to move up and down, while the plane I1001 and the plane III801 on the stop pin 8 jointly limit the freedom of the shaft 6 to move forward and backward. Since the shaft 6 is designed with an embedding groove 604 that cooperates with the shaft end baffle 9 in the thickness direction, the shaft end baffle 9 installed on the support body 10 must be embedded in the embedding groove 604, so that the shaft end baffle 9 limits the left and right movement freedom of the shaft 6; at this time, the six degrees of freedom of the shaft 6 are completely restricted, thereby realizing the positioning of the shaft 6.

[0034] When a fault occurs, such as wear of the roller surface of the roller body 3 or damage to the bearing 4, the roller component can be removed from the L-shaped support body 10 of the roller support only by pulling out the stop pin 8 and removing the shaft end baffle 9. Because there are usually multiple rollers supporting the running parts of the equipment, the operation of the equipment will not be affected if one roller is missing for a short period of time. After the disassembled faulty parts (such as worn rollers, failed bearings) are replaced, the roller component is pushed horizontally into the installation position of the roller support, the stop pin 8 is inserted, and the shaft end baffle 9 is assembled, the fault handling or replacement of the roller is completed, and the online replacement or fault handling of the roller is realized.

[0035] Preferably, plane I1001 and plane II1002 on the support body 10 are perpendicular to each other, and the plane III801 of the stopper pin 8 inserted on the support body 10 is perpendicular to the plane II1002 on the support body. Correspondingly, the matching pin positioning surface 601 and seat positioning surface 602 are both perpendicular to the support surface 603.

[0036] As a further optimization of the above solution, an operating rod hole 802 is provided on the stop pin 8, and an operating rod can be inserted into the operating rod hole 802 to facilitate the operation of inserting and removing the stop pin 8.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A roller device, comprising a roller support and a roller component supported above the roller support; Features: The roller component includes a shaft, a sleeve, a bearing and a roller body which are coaxially sleeved from the inside to the outside, wherein the sleeve is connected to the outside of the shaft by a key; there is a clearance fit between the shaft and the sleeve, and between the key and the sleeve, and there is an interference fit between the inner ring of the bearing and the sleeve, and between the outer ring of the bearing and the roller body; end covers are correspondingly provided at both ends of the roller body, and the end covers are sleeved outside the sleeve and installed on the end surface of the roller body through a fastening pin; three planes are cut at both ends of the shaft in the roller component, namely, a pin positioning surface, a seat positioning surface and a support surface, wherein the pin positioning surface and the seat positioning surface are correspondingly arranged at both sides of the shaft, and the support surface is arranged at the lower end of the shaft; The roller support is mainly composed of a support body, a shaft end baffle and a baffle pin; the two ends of the shaft in the roller component are supported on two oppositely arranged support bodies, and both support bodies are L-shaped structures, which have a plane I that matches the seat positioning surface of the shaft, and a plane II that matches the support surface of the shaft; the baffle pin is inserted into the support body and cooperates with the support body to form a U-shaped structure, and the baffle pin has a plane III that matches the pin positioning surface of the shaft; the lower ends of the two ends of the shaft are provided with an embedding groove, the shaft end baffle is arranged on the outer side of the support body, the upper part of which is inserted into the embedding groove, and the lower part is detachably connected to the support body through a connecting piece; Plane II on the support body and the support surface on the shaft are both horizontal planes; Plane I and plane II on the support body are perpendicular to each other.

2. The roller device according to claim 1, Features: The stop pin inserted on the support body, the plane III on the stop pin and the plane II on the support body are perpendicular to each other.

3. The roller device according to claim 1, Features: The stop pin is provided with an operating rod hole.

4. The roller device according to claim 1, Features: Positioning bosses for limiting the axial displacement of the shaft sleeve are correspondingly arranged on the opposite surfaces of the two supporting bodies.

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