CN214888339U

CN214888339U - Combined sliding roller

Info

Publication number: CN214888339U
Application number: CN202121445531.3U
Authority: CN
Inventors: 于泳; 王琳; 王迎春; 梁伟安
Original assignee: Shenzhen Bestconnectech Precision Technology Co ltd
Current assignee: Shenzhen Bestconnectech Precision Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-26
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a combined sliding roller, which comprises a roller shaft core, wherein the roller shaft core comprises a shaft rod part and a connecting end part, and the connecting end part is provided with a knurled structure for being pressed and riveted with a mounting plate; the roller comprises an outer ring and an inner ring, and the inner ring is sleeved with the shaft rod part. The roller limiting device is characterized by further comprising a rivet, wherein the shaft part is provided with a connecting hole, the rivet is riveted with the connecting hole, and the roller is limited on the shaft part. The rivet comprises a rivet cap and a rivet rod, wherein the rivet rod is provided with anti-skidding convex lines. The inner ring of the roller is provided with a countersunk hole for accommodating the nail cap. The connecting end portion comprises a convex ring, and a groove is formed between the convex ring and the knurled structure. The connecting hole is provided with a chamfer. This combination slip gyro wheel is provided with the annular knurl structure at the tip of being connected of gyro wheel and is pressed to rivet with the work piece and be connected, and the annular knurl structure prevents changeing the function for connecting to provide, has improved the firm in connection degree of gyro wheel axle core with the mounting panel, has avoided the gyro wheel to break away from the connection, improves gyro wheel life.

Description

Combined sliding roller

Technical Field

The application relates to the field of pulleys, in particular to a combined sliding roller.

Background

Note that the contents described in this section do not represent all the related art.

The roller is a common part in a mechanical motion structure, and the design and the selection of the roller determine the motion precision and the motion speed of a motion part and are important guide parts.

At present, the roller is installed on a workpiece in a non-threaded connection, common riveting and welding mode, but the connection mode of the threaded connection and the common riveting is easy to loosen under the driving of the forward rotation and the reverse rotation of the roller, so that a pulley is separated from the workpiece; the welding has limitation and poor precision, and the roller cannot be firmly installed on a material without welding performance or a material workpiece with poor welding effect through welding.

Disclosure of Invention

The utility model discloses mainly to above problem, provided a combination sliding roller, aim at being connected the firm stable with the work piece of pulley, improve gyro wheel range of application, life.

In order to achieve the above object, the utility model provides a combined sliding roller, include: the roller shaft core comprises a shaft rod part and a connecting end part, and the connecting end part is provided with a knurled structure for being pressed and riveted with the mounting plate;

the roller comprises an outer ring and an inner ring, and the inner ring is sleeved with the shaft rod part to enable the roller to rotate relative to the roller shaft core.

Further, the rolling wheel fixing device further comprises a rivet, the shaft part is provided with a connecting hole, the rivet is riveted with the connecting hole, and the rolling wheel is limited on the shaft part.

Further, the rivet comprises a rivet cap and a rivet rod, and the rivet rod is provided with anti-skidding convex lines.

Further, the roller inner ring is provided with a countersunk hole for accommodating the nail cap.

Further, the connecting end portion includes a raised ring with a groove between the raised ring and the knurled structure.

Further, the connecting hole is provided with a chamfer.

Compared with the prior art, the combined sliding roller provided by the utility model can be provided with a knurling structure at the connecting end part of the roller to be connected with a workpiece rivet pressing, the knurling structure provides an anti-rotation function for the connection, the firm degree of the connection between the roller shaft core and the mounting plate is improved, the roller shaft core and the mounting plate are prevented from loosening under the driving of the forward rotation and reverse rotation of the roller, the loosening effect of the threaded connection is avoided, the roller is prevented from being disconnected, accidents are avoided, and the stability of the rotation of the roller is improved; and the back wall surface of the mounting plate is flat and has no bulge after the roller is connected with the mounting plate, thereby not occupying redundant space. The knurling structure of the connecting end part periphery of the pulley is large in riveting connection area with the mounting plate, stress conditions are good, enough strength can be guaranteed, the phenomenon that shearing force of the connecting part is too concentrated is avoided, damage occurs, the shaft part and the mounting surface of the mounting plate can be kept perpendicular under long-time work of the roller, and the service life is prolonged. Therefore, the combined sliding roller has stable operation, scientific and reasonable integral structure, simple assembly, installation space saving, good economical efficiency and convenient popularization and use.

Drawings

Fig. 1 is a schematic structural diagram of a combined sliding roller according to the present application.

Fig. 2 is a half-sectional schematic view of a combination sliding roller according to the present application.

Fig. 3 is a schematic view of a roller core structure of a combined sliding roller according to the present application.

Fig. 4 is a schematic view of a roller structure of a combined sliding roller according to the present application.

Fig. 5 is a schematic view of a rivet structure of a combination sliding roller according to the present invention.

Reference numerals shown in the drawings: 1. a roller shaft core; 110. a shaft portion; 111. connecting holes; 112. chamfering; 120. a connecting end portion; 121. a knurled structure; 122. a convex ring; 123. a groove; 2. a roller; 210. an outer ring; 220. an inner ring; 221. a countersunk hole; 3. riveting; 310. a nail cap; 320. a nail rod; 321. anti-skid wales; 4. and (7) mounting the plate.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the present embodiment provides a combined sliding roller, including a roller core 1, the roller core 1 includes a shaft portion 110 and a connecting end portion 120, the connecting end portion 120 has a knurled structure 121 for press-riveting with a mounting plate 4; the roller 2, the roller 2 includes an outer ring 210 and an inner ring 220, and the inner ring 220 of the roller 2 is sleeved on the shaft part 110. The inner ring 220 of the roller 2 is sleeved on the shaft part 110 of the roller shaft core 1, so that the roller 2 rotates relative to the roller shaft core 1. The roller 2 rotates by taking the shaft part 110 as a sliding support, and provides a sliding function for a workpiece on which the combined sliding roller is installed.

The connecting end part 120 of the roller shaft core 1 is provided with a knurled structure 121 and is connected with a preset mounting hole of the mounting plate 4 in a riveting manner, the processing and hardening effect is achieved during riveting, the connecting strength is improved, the friction force is increased under the effect of the knurled structure 121, the anti-rotation function is provided for connection, the connecting firmness degree of the roller shaft core 1 and the mounting plate 4 is improved, relative rotation with the mounting plate 4 is not easy to occur, and therefore the rotating stability of the roller 2 is improved; and the back wall surface of the mounting plate 4 is flat and has no bulge after the roller shaft core 1 is connected with the mounting plate 4, thereby not occupying redundant space. Preferably, the knurling structure 121 is a tooth-shaped structure;

compared with the traditional combined sliding roller with the connecting end part welded with the mounting plate, the pulley with the knurled structure 121 and the mounting plate 4 connected by riveting avoids complex welding positioning and poor precision; and riveting can be used for applying the pulley to materials which cannot be welded or material workpieces with poor welding effect. Compared with the traditional combined sliding roller with the connecting end part in threaded connection with the mounting plate or in common riveting, the roller with the knurl structure 121 in press riveting connection with the mounting plate 4 avoids the roller shaft core 1 and the mounting plate 4 from loosening under the driving of the forward rotation and reverse rotation of the roller 2, and avoids the loosening effect of threaded connection, the roller 2 is separated from the connection and accidents occur;

and the whole of the shaft core in threaded connection or common riveting is generally thin, the connecting area of the connecting end part and the mounting plate is small, the connecting end part and the mounting plate can be regarded as point connection, the shear stress resistance of the connecting part is poor, the wall surface of the connecting part is weak, the yielding bending moment deformation is easy to occur, the shaft part and the mounting plate cannot be kept vertical after long-time work, and the operation of the pulley cannot be kept stable. The area of riveting connection of the knurling structure 121 of the 120 circles of the connecting end part of the pulley and the mounting plate 4 is large, the stress condition is good, enough strength can be guaranteed, the shearing force of the connecting part is prevented from being too concentrated, damage is avoided, the shaft part 110 and the mounting surface of the mounting plate 4 can be kept vertical to each other when the roller 2 works for a long time, and the service life is prolonged. Therefore, the combined sliding roller has stable operation, scientific and reasonable integral structure, simple assembly, installation space saving, good economical efficiency and convenient popularization and use. The mounting plate 4 is not an essential component of the combined sliding roller, and is only shown for mounting, so that the reader can understand the combined sliding roller conveniently.

Referring to fig. 2 and 5, the roller 2 further includes a rivet 3, the shaft portion 110 has a connection hole 111, and the rivet 3 is riveted to the connection hole 111 to limit the roller 2 to the shaft portion 110. The rivet 3 is riveted with the connecting hole 111 of the roller shaft core 1, the roller 2 is clamped between the connecting end part 120 and the rivet 3, the limiting effect is generated, and the roller 2 is prevented from being separated from the shaft part 110. Rivet 3 and connecting hole 111 riveting have avoided threaded connection to appear the effect of coming back at gyro wheel 2 clockwise anticlockwise drive down, lead to gyro wheel 2 to break away from the combination. So that the roller 2 can be rotated over the shaft portion 110.

Referring to fig. 3 and 5, the rivet 3 includes a nut 310 and a shank 320, and the shank 320 has an anti-slip ridge 321. The nut 310 of the rivet 3 serves to prevent the roller 2 from being disengaged from the roller core 1. Through the cooperation of the antiskid convex pattern 321 on the nail rod 320 and the connecting hole 111 of the shaft rod part 110, the rivet 3 is more firmly connected with the roller shaft core 1, so that the roller 2 is more ideally limited in the axial direction, the roller 2 is prevented from axially deviating and deflecting, and the smooth movement of the workpiece using the pulley when the workpiece passes through the outer ring 210 of the roller 2 is ensured.

Referring to fig. 4 and 5, the inner ring 220 of the roller 2 has a countersunk hole 221 for receiving the nut 310. The nut 310 of the rivet 3 may be received in the counter bore to prevent the nut 310 of the rivet 3 from protruding and interfering with the rotation of the roller 2.

Referring to fig. 1 and 3, the connecting end portion 120 includes a convex ring 122, and a groove 123 is formed between the convex ring 122 and the knurled structure 121. The material of the mounting plate 4 is extruded and embedded into the groove 123 through pressure riveting, the convex ring 122 is connected with the knurled structure 121 to lock the mounting plate 4, the binding force between the roller shaft core 1 and the mounting plate 4 is increased, and the stability of the structure is kept; the rotation of the roller shaft core 1 is prevented by the knurling tooth shape on the knurling structure 121; this arrangement facilitates the securing of the roller core 1 to the mounting plate 4.

Referring to fig. 2 and 3, the connection hole 111 is provided with a chamfer 112. Providing a chamfer 112 on the attachment bore 111 facilitates guiding the rivet 3 into the attachment bore 111.

The present invention is not limited to the above embodiments, and in some embodiments, a bearing (not shown) is provided between the roller core 1 and the roller 2, and the sliding friction is changed into the rolling friction of the roller ball in the bearing, so as to reduce the friction resistance. Balls are arranged between the roller shaft core 1 and the rollers 2, a ball groove for accommodating the balls is arranged between the roller shaft core 1 and the rollers 2, sliding friction is changed into ball rolling friction, and friction resistance is reduced (not shown). The outer ring 210 of the roller 2 may be fitted with a rubber tire (not shown).

The present invention is not limited to the above embodiments, and any embodiments mentioned in the description fall within the scope of the present invention.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. A composite slide roller, comprising:

the roller shaft core comprises a shaft rod part and a connecting end part, and the connecting end part is provided with a knurled structure for being pressed and riveted with the mounting plate;

2. The combination sliding roller as defined in claim 1, further comprising a rivet, wherein the shaft portion has a connection hole, the rivet is riveted with the connection hole to limit the roller to the shaft portion.

3. The composite sliding roller as claimed in claim 2, wherein the rivet includes a head and a shank, and the shank has an anti-slip ridge.

4. The combination sliding roller according to claim 3, wherein the roller inner race has a counterbore for receiving the nut.

5. The composite slide roller of claim 1 wherein the attachment end includes a raised ring with a groove between the raised ring and the knurled structure.

6. The composite slide roller as claimed in claim 2, wherein the coupling hole is chamfered.