CN111620040A

CN111620040A - Roller conveyor

Info

Publication number: CN111620040A
Application number: CN202010449407.8A
Authority: CN
Inventors: 齐亚文; 虎岩; 陈翔宇; 程伟; 蒋发根; 苟牛红; 周景吉; 夏学春; 周永华
Original assignee: Ningbo Kocel Machine Tool Auxiliary Machinery Co Ltd
Current assignee: Ningbo Kocel Machine Tool Auxiliary Machinery Co Ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-09-04

Abstract

A roller conveyor comprises a rack, a conveying device and a jacking device, wherein the rack comprises a square support and cross beams, and the cross beams are fixed on two sides of the top end of the support in the length direction; the conveying device is arranged on the top of the cross beam; the jacking device is positioned between the rack and the conveying device and is connected with the bottom of the cross beam; the conveying device is provided with two rows of symmetrical rollers which are arranged in a V-shaped vertical plane; the jacking devices are symmetrically provided with two rows of jacking blocks matched with the rollers and are embedded between the rollers in each row. Circumferential parts can be supported through a V-shaped angle of the rollers, and the conveying and positioning of the circular shaft parts are realized through sliding on the surfaces of the rollers arranged in a V shape; after the workpiece is conveyed in place, the jacking device works to jack the workpiece to be separated from the roller, so that subsequent grabbing is facilitated.

Description

Roller conveyor

Technical Field

The invention relates to the technical field of logistics conveying lines, in particular to a conveyor adopting rollers for conveying.

Background

Roller conveyors are widely used in daily production and life, and generally, objects directly conveyed are flat bottom surfaces or contact with the surfaces of a plurality of rollers. The round shaft parts are generally conveyed in a mode of carrying a tray, and a tool for clamping the workpieces is arranged in the tray. The increased tray and the tool in the tray increase the space size of the equipment and increase the use cost of the equipment, and the problem of tray recovery needs to be considered. For example, in order to recover the tray, when a single-layer roller conveying structure is applied, the tray needs to be manually recovered or an AGV trolley; when a multi-layer roller conveying structure is applied, the front end part and the rear end part of the conveying line are provided with elevators for conveying the trays back and forth after changing layers. The increase of these auxiliary functional devices leads to an increase in equipment cost, an increase in equipment footprint, and a low transportation efficiency.

Disclosure of Invention

The invention aims to solve the technical problems and provides a roller conveyor with V-shaped arranged rollers, wherein the roller conveyor positions a workpiece in the conveying process through two rows of power rollers in V-shaped layout; and a workpiece lifting mechanism is added below the roller, so that the workpiece can be lifted at a feeding station of the conveying line, the workpiece is separated from the surface of the roller, and the workpiece can be conveniently grabbed by a manipulator.

A roller conveyor comprises a rack, a conveying device and a jacking device, wherein the rack comprises a square support and cross beams, and the cross beams are fixed on two sides of the top end of the support in the length direction; the conveying device is arranged on the top of the cross beam; the jacking device is positioned between the rack and the conveying device and is connected with the bottom of the cross beam; the conveying device is provided with two rows of symmetrical rollers which are arranged in a V-shaped vertical plane; the jacking devices are symmetrically provided with two rows of jacking blocks matched with the rollers and are embedded between the rollers in each row.

The circular shaft parts are placed on the rollers arranged in the V-shaped mode of the conveying device, the circular shaft parts can be supported through the V-shaped angles of the rollers, and the circular shaft parts are conveyed and positioned by sliding on the surfaces of the rollers arranged in the V-shaped mode; and after the jacking blocks are conveyed in place, the jacking device works to jack up the jacking blocks. Because the jacking blocks are positioned between each row of rollers, the jacking blocks are contacted with the surfaces of the round shaft parts on the rollers when being lifted, so that the jacking blocks are lifted to be separated from the rollers, and convenience is provided for subsequent grabbing.

In one embodiment, the conveying device comprises a driving mechanism, a transmission mechanism, a fixed seat, a roller mounting frame and a mounting plate, wherein the driving mechanism is positioned in the bracket, and one surface of the driving mechanism is connected with the bottom surface of the cross beam; one end of the transmission mechanism is connected with the driving mechanism, and the other end of the transmission mechanism is connected with the roller; the two fixing seats are arranged and are respectively and symmetrically fixedly arranged at the upper ends of the cross beams on the two sides; the roller mounting bracket sets up two, adjacent one end with the both ends of mounting panel are fixed, and the one end of keeping away from relatively is fixed with the one end of each fixing base respectively, is listed as the roller is located each roller mounting bracket respectively.

Through the drive of actuating mechanism, drive mechanism's transmission can be so that the roller is from taking power, improves transmission efficiency and automation.

In one embodiment, the driving mechanism comprises a motor mounting seat, a driving motor and a driving wheel, and the transmission mechanism comprises a transmission wheel, a transmission chain, a bearing seat and a bearing; one side of the motor mounting seat is fixed with the bottom surface of the cross beam, and the other side of the motor mounting seat is parallel to the axis of the roller and is provided with a driving motor; the driving wheel is connected with an output shaft of the driving motor; the bearing seat is fixed on the cross beam, a through hole matched with the bearing is arranged in the direction vertical to the mounting surface, the axis of the through hole is parallel to the axis of the roller, and the bearing is embedded into the through hole; two driving wheels are arranged and are respectively arranged at two ends of a transmission shaft penetrating through the bearing; two transmission chains are arranged, and one transmission chain is meshed with the driving wheel and the transmission wheel close to one side of the driving wheel; the other one is meshed with a driven wheel and at least one roller, wherein the driven wheel is arranged on the side far away from the driving wheel.

The driving mechanism, the transmission mechanism and the roller adopt a transmission mode of meshing the chain wheel and the chain, the structure is simple, the installation is rapid, and the transmission reliability is high.

In one embodiment, the two groups of driving assemblies are arranged and are respectively installed below the two roller installation frames in a staggered mode.

The driving assembly is arranged below the two roller supports in a staggered manner, so that on one hand, each row of rollers has an independent power source, and the rollers are convenient and quick to install and disassemble; on the other hand, the installation space can be reduced by the staggered installation, and the occupied space of the equipment is further reduced.

In one embodiment, the fixed seat and the mounting plate are provided with V-shaped angles matched with the two rows of rollers in the vertical direction.

The V angle of two rows of rollers is calculated at the beginning of design, and then the matched angle is arranged on the fixing seat and the mounting plate, so that the angle does not need to be corrected or adjusted during mounting, and the rollers can be directly connected. Accuracy and mounting efficiency can be improved.

In one embodiment, the jacking device comprises a plurality of supporting columns, a connecting plate, a driving assembly, a jacking assembly and a guiding assembly, wherein the supporting columns are arranged at intervals, one end of each supporting column is fixed with the bottom surface of the cross beam, and the other end of each supporting column is fixed with one surface of the connecting plate; the driving assembly is fixed on the other surface of the connecting plate in the middle, and the output end of the driving assembly penetrates through the connecting plate to be connected with the jacking assembly; the jacking assembly is connected with the jacking block; the guide assemblies are symmetrically arranged at two ends of the driving assembly and are connected with the connecting plate.

Through with jacking device integration on conveyor, can also the jacking when realizing carrying, kill two birds with one stone.

In one embodiment, the jacking assembly comprises a jacking plate and a plurality of jacking rods matched with the jacking blocks, one surface of the jacking plate, which is close to the connecting plate, is fixedly connected with the output end of the driving part, and the other surface of the jacking plate is connected with one end of each jacking rod; the other end of each jacking rod is connected with each jacking block.

The jacking assembly is wholly jacked by the driving assembly, the rising height and the stroke of the jacking assembly are consistent, the rising height and the supporting force when the jacking assembly is in contact with and jacks a workpiece are the same, the workpiece is jacked stably, the workpiece cannot incline, and the workpiece can be conveniently grabbed subsequently.

In one embodiment, the guide assembly comprises a guide shaft, a bearing and a bearing seat, the bearing seat is fixedly installed on the connecting plate in a penetrating mode, and the bearing is embedded into the bearing seat; the guide shaft is embedded into the bearing, and one end of the guide shaft is fixedly connected with the jacking plate.

Through the sliding of the guide shaft in the bearing, the lifting operation of the jacking assembly can be smooth. And because the direction subassembly is the symmetry setting for the lift of jacking subassembly is steady more reliable, and the equilibrium is also higher.

In one embodiment, the rollers are uniformly arranged in the conveying device.

The rollers are uniformly distributed and arranged, on one hand, the transmission is simple and convenient to set, on the other hand, the jacking blocks can be arranged in the same size according to gaps formed after the rollers are uniformly distributed, and the universality and interchangeability are higher.

In one embodiment, the roller conveyor is further provided with a detection device, and the detection device is mounted on the jacking device and used for detecting the jacking height of the jacking device.

Through setting up the height of detection device automated inspection jacking, can realize that the axle type part of different diameter sizes is carried and the jacking, application scope is wide.

According to the technical scheme, the beneficial effect brought by one aspect of the invention is that at least two rows of power rollers in V-shaped layout are used for positioning the workpiece in the conveying process by the roller conveyor in V-shaped arrangement; and a jacking device is added below the roller, so that the workpiece can be jacked after being conveyed in place, the workpiece is separated from the surface of the roller, and the manipulator can conveniently grab the workpiece. And increase the direction subassembly on jacking device, can make the jacking action more smooth and easy, the jacking process is more steady.

Drawings

FIG. 1 is a schematic isometric view of one embodiment of the present application;

FIG. 2 is a schematic side view of one embodiment of the present application;

FIG. 3 is a schematic vertical section of one embodiment of the present application;

FIG. 4 is a schematic front view of one embodiment of the present application;

FIG. 5 is a schematic view of a roll angle analysis of one embodiment of the present application;

FIG. 6 is a schematic diagram illustrating a workpiece diameter variation analysis according to one embodiment of the present application;

FIG. 7 is a schematic diagram of a force analysis of one embodiment of the present application;

FIG. 8 is a schematic view of a mounting block according to one embodiment of the present application;

FIG. 9 is a schematic view of a mounting plate according to one embodiment of the present application;

FIG. 10 is a schematic view of a mounting bracket, a roller mounting bracket and a mounting plate assembly according to one embodiment of the present application;

in the drawings: 100-frame, 110-direction support, 111-adjustable support, 112-water pan, 113-connecting plate, 120-beam, 200-conveying device, 210-roller, 211-inside wheel, 212-outside wheel, 220-driving mechanism, 221-motor, 222-motor mounting seat, 223-driving wheel, 230-driving mechanism, 231-driving wheel, 232-driving chain, 233-bearing seat, 240-fixing seat, 241-first U-shaped groove, 242-profiling rib, 243-supporting plate, 250-roller mounting seat, 260-mounting plate, 261-second U-shaped groove, 262-reinforcement, 263-connecting plate, 300-jacking device, 310-jacking block, 320-supporting column, 330-connecting plate, 340-drive assembly, 350-jacking assembly, 351-jacking plate, 352-jacking rod, 360-guide assembly, 361-guide shaft and 362-bearing seat.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "secured" may be mounted, welded, riveted, etc., and the term "connected" may be directly connected, indirectly connected, and the like for the purpose of illustrating the invention.

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 herein in the description of the invention 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.

In one embodiment, the roller conveyor comprises a rack, a conveying device and a jacking device, wherein the rack comprises a square support and cross beams, and the cross beams are fixed on two sides of the top end of the support in the length direction; the conveying device is arranged on the top of the cross beam; the jacking device is positioned between the rack and the conveying device and is connected with the bottom of the cross beam; the conveying device is provided with two rows of symmetrical rollers which are arranged in a V-shaped vertical plane; the jacking devices are symmetrically provided with two rows of jacking blocks matched with the rollers and are embedded between the rollers in each row.

The roller conveyor is described below with reference to specific embodiments to further understand the inventive concept of the roller conveyor. Referring to fig. 1, a roller conveyor 10 includes a frame 100, a conveying device 200, and a jacking device 300. The frame comprises a rectangular support 110 and two cross beams 120 matching the length of the frame. The bottom of the bracket is provided with an adjustable support 111 for adjusting the overall height or level of the bracket; the middle of the bracket is provided with a water receiving tray 112 which is sealed with the periphery of the bracket and used for collecting cutting fluid carried by a workpiece, thereby improving the environment and reducing the cost. The crossbeams are respectively fixed on two sides of the top end of the support in the length direction, the optimal outer side is flush with the support, and the two ends are fastened by adopting connecting plates 113 through bolts. Further, the conveyor 200 spans the two beams and is fixedly mounted on top thereof. The jacking device 300 is located between the frame and the conveying device and connected with the bottom of the cross beam. Two rows of symmetrical rotary rollers which are arranged in a V-shaped vertical plane are arranged on the conveying device; the jacking device is symmetrically provided with jacking blocks 310 matched with the two rows of rollers 210 and embedded between the rollers in each row.

Like this, axle type work piece moves on the roller of V-arrangement, and the roller rotates on the one hand and drives axle type work piece and slide towards support length direction, and on the other hand the V-arrangement of roller still can carry out radial positioning to the work piece. After the workpiece runs in place, the workpiece can be jacked up through the jacking block of the jacking device, and convenience is provided for subsequently grabbing the workpiece. It should be noted that, before the workpiece is jacked by the jacking device, the height of the jacking block is lower than the highest surface of the roller.

Referring to fig. 2, in one embodiment, the conveyor 200 further includes a driving mechanism 220, a transmission mechanism 230, a fixing base 240, a roller mounting frame 250, and a mounting plate 260. The driving mechanism 220 is located in the bracket 110 and one surface of the driving mechanism is connected with the bottom surface of the beam; one end of the transmission mechanism 230 is connected with the driving mechanism, and the other end is connected with the roller. The number of the fixing seats 240 is two, the two fixing seats are symmetrically and fixedly installed at the tops of the cross beams on the two sides respectively, and optimally, the outer surfaces of the fixing seats are flush with the outermost sides of the cross beams. Roller mounting bracket 250 sets up two, and adjacent one end is fixed with the both ends of mounting panel 260, and the one end of keeping away from relatively is fixed with each the one end of fixing base respectively, because the distance between two fixing bases is great than the width of mounting panel, and the position of mounting panel is less than the fixing base, so the roller mounting bracket also is the V type after fixed. Two rows of rollers are respectively arranged on the two roller mounting racks.

Through the drive that increases actuating mechanism and drive mechanism's transmission in conveyor, can make the roller from taking power, in work piece transportation process, the roller provides power for the conveying efficiency of work piece is higher.

Referring to fig. 3, in one embodiment, the driving mechanism 220 includes a motor mounting seat 221, a driving motor 222, and a driving wheel 223. The transmission mechanism 230 comprises a transmission wheel 231, a transmission chain 232, a bearing seat 233, a bearing and a transmission shaft. Specifically, the motor mounting seat is a three-dimensional seat with a right-angled triangle-shaped cross section, one right-angled side is fixed to the bottom surface of the cross beam, the inclined plane is designed to be parallel to the axis of one row of rollers, and a driving motor 222 is mounted on the inclined plane, wherein a horizontal motor is adopted. The output shaft of the drive motor is keyed to the drive wheel 222. Further, the bearing seat 233 is also fixed on the cross beam, a through hole matched with the bearing is formed in the direction parallel to the axis of the roller, the bearing is embedded into the through hole, the two ends of the transmission shaft are protruded out of the bearing seat, and the two transmission wheels 231 are respectively provided with two ends of the transmission shaft and fixed relative to the transmission shaft. Two transmission chains 232 are connected end to form a closed ring. The roller mounting frame of the conveying device is provided with a through hole matched with the transmission mechanism, and the through hole is generally arranged at one end part of the workpiece in the running direction, so that subsequent mounting, dismounting and maintenance are convenient.

Thus, one of the transmission chains is meshed with the driving wheel and the transmission wheel close to one side of the driving wheel; the other through hole penetrating through the roller mounting frame is meshed with the driven roller on the side far away from the driving wheel and two adjacent rollers, and the roller is temporarily called as a driving roller. It should be noted that the roller is provided with a double chain wheel at one end close to the fixed seat, and an outer side wheel 212 and an inner side wheel 211 close to the fixed seat. In this embodiment, the driving wheel is connected to the inner wheel 211 via a driving chain. In other embodiments, the transmission chain can be meshed with two adjacent rollers according to actual conditions, and the meshed gears can also be the outer side wheels 212. One chain wheel of the driving roller is connected with a transmission chain, and the other chain wheel is also in meshing transmission with other rollers in the same row through the chain. Therefore, the driving motor acts to drive the driving wheel to rotate, the driving wheel drives the two driving rollers connected with the driving chain to rotate, and other rollers connected with the driving rollers also rotate along with the driving rollers. Thus, synchronous rotation of all the rollers is realized.

In the embodiment, the driving mechanism, the transmission mechanism and the roller adopt a transmission mode of meshing the chain wheel and the chain, the structure is simple, the installation is rapid, and the transmission reliability is high.

It should be noted that, in one embodiment, each row of rollers is uniformly arranged in the conveying device. On the one hand, the transmission is simple and convenient, such as: the transmission chains between every two adjacent rollers can be made into the same; on the other hand, the power that the axle type part was transmitted to the roller is also the same, and the setting of jacking piece also can be made into the same size according to the clearance after the roller equipartition, and commonality and interchangeability are also higher.

In one embodiment, the two groups of driving assemblies are arranged and are respectively installed below the two roller installation frames in a staggered mode. The mounting mode and the connection mode can be completely the same, the frequency converter can be added to the driving motor, and the two rows of rollers can be subjected to stepless speed change in a certain range and can synchronously rotate through adjustment of the frequency converter. The driving assembly is arranged below the two roller brackets in a staggered manner, so that on one hand, each row of rollers has an independent power source, and the rollers are convenient and quick to disassemble during maintenance and installation; on the other hand, the installation space can be reduced by the staggered installation, and the occupied space of the equipment is further reduced.

Referring to fig. 1 and 4, in an embodiment, the jacking device 30 further includes a support column 320, a connecting plate 330, a driving assembly 340, a jacking assembly 350, and a guiding assembly 360. The supporting columns are arranged at intervals, one end of each supporting column is fixed to the bottom surface of the corresponding cross beam, and the other end of each supporting column is fixed to one surface of the corresponding connecting plate. Preferably, the number of the support columns is even, and the support columns are symmetrically arranged on two sides of the connecting plate by taking the intersecting line of the two rows of rollers as an axis. The driving assembly 340 is replaced by an air cylinder, is fixed on the other surface of the connecting plate in the middle, and the output end of the driving assembly penetrates through the connecting plate to be connected with the jacking assembly. The jacking assembly is connected with the jacking block. The guide assembly is connected with the connecting plate.

Specifically, the jacking assembly 350 includes a jacking plate 351 and a plurality of jacking rods 352 matching the jacking blocks. One surface of the jacking plate close to the connecting plate is fixedly connected with the output end of the air cylinder, and the other surface of the jacking plate is connected with one end of the jacking rod; the other end of the jacking rod penetrates through a through hole matched with the roller mounting frame and is connected with the jacking block. It should be noted that, the quantity of jacking piece can be according to the length setting of axle type part, generally sets up 4 at least, and every row of roller is at least 2 promptly, and when the jacking like this, the jacking is steady, can not appear the problem of slope. The setting position of jacking piece matches axle type part length, can set up between adjacent roller, also can set up by segmentation interval, and the best is according to the length of axle type part, the equipartition sets up.

When the shaft parts are conveyed on the conveying device through the roller and stop when reaching the designated position, the cylinder extends out, the jacking plate, the jacking rod and the jacking block which are connected with the cylinder are jacked therewith, and when the jacking block extends out of the roller, the shaft parts are separated from the roller under the jacking of the jacking block.

Because the jacking subassembly is whole by the cylinder jacking, its height that rises is unanimous with the stroke, and the height that rises when can guarantee its contact and jacking work piece is the same with the holding power for the work piece is steady by the process of jacking, can not appear inclining, and the work piece is conveniently subsequently snatched.

In one embodiment, the guide assemblies are symmetrically arranged at two ends of the driving assembly and connected with the connecting plate. Specifically, the guide assembly 360 includes a guide shaft 361, a bearing and a bearing seat 362, and the bearing seat penetrates through and is fixedly installed on the length direction of the connecting plate and is uniformly distributed on two sides of the cylinder. The bearing is embedded into the bearing seat, one end of the guide shaft is embedded into the bearing from the bottom of the connecting plate and is fixedly connected with the jacking plate, and the other end of the guide shaft is free.

Therefore, when the cylinder is jacked, the jacking assembly can smoothly ascend and descend by the sliding of the guide shafts on the two sides in the bearing. And because the direction subassembly is the symmetry setting, the equilibrium is good, avoids the top board slope, and further the high nonconformity of jacking piece jacking is avoided, influences the snatching of axle type part epilogue.

FIG. 5 is an angle analysis chart of the V-shaped conveying device of the present application, wherein 0-O3 and O-O4 are central axes of rollers at the left and right sides of the conveying device; o is the intersection point of the central axis of the roller of the conveying device and the central line of the section of the workpiece; o1 and O2 are respectively the center points of the cross sections of the shaft workpieces with the radiuses of R1 and R2; a1 and A2 are respectively tangent points of two workpieces with different diameters and the roller; l1 and L2 are respectively the distance from the tangent point of the two kinds of diameter workpieces and the roller to the inner edge of the surface of the roller, and L3 is a safety distance; α 1 and α 2 are angles enclosed by O1A1 and O1A3 and O2A2 and O2A3 respectively; theta is half of a V angle formed by the two rows of rollers; the following relationship can be obtained by calculating the angle relationship:

solving for L1, L2:

as shown in fig. 6, the analysis diagram of the diameter variation of the workpiece in the conveying device of the present application further simplifies the analysis diagram of the angle of the conveying device, and combines conventional mathematics and equations (1-3) and (1-4), it can be known that R and α are positively correlated, and the larger the R value, the larger tan α, and the simplified result is:

from the above formula, it can be known that the L3 base plate is constant, and the larger the workpiece diameter is, the longer the required roller length should be when the V angle is constant.

As shown in fig. 7, the force analysis chart of the workpiece shows that the friction force applied to the workpiece is:

fn is the positive pressure transmitted by the inclined roller surface, mu is the friction coefficient, and G is the workpiece weight, so that the larger the V-shaped included angle is, the larger the friction force is.

By combining the derivation, the numerical range of the proper V angle and the roller length can be designed and selected according to the specific diameter of the conveyed shaft parts. The functions of the equipment are realized, and the loss and the cost can be reduced.

In one embodiment, the roll V angle is known. Referring to fig. 8 and 9, the fixing base 240 and the mounting plate 260 are provided with V-shaped corners matched with two rows of rollers in a vertical direction. Specifically, the fixing seat includes a first U-shaped groove 241, a profiling rib 242, and a support plate 243. The profiling ribs are provided with angles matched with V-shaped angles of the roller and fixed in the first U-shaped grooves at intervals, and the supporting plates are lapped on inclined planes of the profiling ribs parallel to the axis of the roller to support the roller mounting rack on one hand and serve as a mounting plate of the roller mounting rack on the other hand. The fixing seats on the other side are symmetrically arranged and then fixed on the cross beam, and the openings are opposite. The mounting plate comprises a second U-shaped groove 261, a reinforcement 262 and a connecting sheet 263. The opening of the second U-shaped groove faces upwards, the rib is symmetrical on two sides of the section of the vertical surface and has a shape matched with the V angle of the roller, the connecting pieces 263 are respectively fixed on the rib, and the outer surface of the connecting piece protrudes in parallel or is parallel to the inclined plane of the rib and the axis of the roller. The other end of the roller mounting seat is fixedly connected with the connecting sheet. The effect after installation is as shown in figure 10, and then the roller and one side of the roller installation frame are installed in parallel. Through the angle design of the fixing seat and the connecting plate, the angle is the angle during design after the installation of the roller mounting frame. Therefore, the installation is carried out without correcting or adjusting the angle, and the direct connection is realized. Accuracy and mounting efficiency can be improved.

The operation of the lower shaft workpiece will be described in detail below. Two rows of a plurality of conveying rollers with certain included angles are provided, and the axis of a round shaft workpiece can be always kept at the movement center line position of the roller conveyor in the conveying process. Furthermore, in order to reduce the occupied area and ensure that the shape of the motor does not exceed the left side and the right side of the conveyor after the motor is installed, the conveying power of the motor is transmitted by the two motors through the chain wheels respectively. The transmission ratio can be distributed through the chain wheel, so that the speed of the roller conveying line meets the use requirement. The jacking device is positioned below the roller mounting frame, and the air cylinder does not extend out when the workpiece is not conveyed to a specified position; when the work piece is carried appointed jacking position, the roller stall, and jacking device cylinder stretches out, drives the vertical rising of jacking pole, and a plurality of jacking pieces contact jacking circle axle work piece surface to reach the lifting of circle axle work piece. It should be noted that, for circular shaft workpieces with different shaft diameters, although the heights of the axes from the ground are different under the support of the two rows of conveying rollers, the outer circular surface of the lowest end of the circular shaft workpiece does not contact the cushion block at the initial stage of non-lifting of the lifting mechanism.

Through the combination of various support frames and the chain wheel and chain transmission structure, the equipment cost is effectively saved, and the power loss is reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The roller conveyor is characterized by comprising a rack, a conveying device and a jacking device, wherein the rack comprises a square support and cross beams, and the cross beams are fixed on two sides of the top end of the support in the length direction; the conveying device is arranged on the top of the cross beam; the jacking device is positioned between the rack and the conveying device and is connected with the bottom of the cross beam; the conveying device is provided with two rows of symmetrical rollers which are arranged in a V-shaped vertical plane; the jacking devices are symmetrically provided with two rows of jacking blocks matched with the rollers and are embedded between the rollers in each row.

2. The roller conveyor according to claim 1, wherein the conveying device comprises a driving mechanism, a transmission mechanism, a fixed seat, a roller mounting frame and a mounting plate, wherein the driving mechanism is positioned in the bracket, and one surface of the driving mechanism is connected with the bottom surface of the cross beam; one end of the transmission mechanism is connected with the driving mechanism, and the other end of the transmission mechanism is connected with the roller; the two fixed seats are respectively and symmetrically and fixedly arranged at the upper ends of the cross beams on the two sides; the roller mounting bracket sets up two, adjacent one end with the both ends of mounting panel are fixed, and the one end of keeping away from relatively is fixed with the one end of each fixing base respectively, is listed as the roller is located each roller mounting bracket respectively.

3. The roller conveyor of claim 2, wherein the drive mechanism comprises a motor mount, a drive motor, a drive wheel, the drive mechanism comprising a drive wheel, a drive chain, a bearing block, a bearing; one side of the motor mounting seat is fixed with the bottom surface of the cross beam, and the other side of the motor mounting seat is parallel to the axis of the roller and is provided with a driving motor; the driving wheel is connected with an output shaft of the driving motor; the bearing seat is fixed on the cross beam, a through hole matched with the bearing is formed in the direction parallel to the axis of the roller, and the bearing is embedded into the through hole; two driving wheels are arranged and are respectively arranged at two ends of a transmission shaft penetrating through the bearing; two transmission chains are arranged, and one transmission chain is meshed with the driving wheel and the transmission wheel close to one side of the driving wheel; the other one is meshed with a driven wheel at one side far away from the driving wheel and two adjacent rollers.

4. A roller conveyor according to claim 2, wherein the mounting seats and the mounting plate are provided with a V-angle in the vertical direction matching two rows of the rollers.

5. A roller conveyor according to claim 2, wherein there are two sets of drive assemblies, each mounted in offset relation below two of said roller mounts.

6. The roller conveyor according to claim 1, wherein the jacking device comprises a plurality of supporting columns, a connecting plate, a driving assembly, a jacking assembly and a guiding assembly, wherein the supporting columns are arranged at intervals, one end of each supporting column is fixed with the bottom surface of the cross beam, and the other end of each supporting column is fixed with one surface of the connecting plate; the driving assembly is fixed on the other surface of the connecting plate in the middle, and the output end of the driving assembly penetrates through the connecting plate to be connected with the jacking assembly in the middle; the other end of the jacking assembly is connected with the jacking block; the guide assemblies are symmetrically arranged at two ends of the driving assembly and are connected with the connecting plate.

7. The roller conveyor as claimed in claim 6, wherein the jacking assembly comprises a jacking plate and a plurality of jacking rods matched with the jacking blocks, one surface of the jacking plate, which is close to the connecting plate, is fixedly connected with the output end of the driving part, and the other surface of the jacking plate is connected with one end of each jacking rod; the other end of each jacking rod is connected with each jacking block.

8. The roller conveyor of claim 6 wherein said guide assembly includes a guide shaft, a bearing and a bearing seat, said bearing seat fixedly mounted through said web, said bearing being embedded in said bearing seat; the guide shaft is embedded into the bearing, and one end of the guide shaft is fixedly connected with the jacking plate.

9. A roller conveyor according to any of claims 1-8, wherein the rollers are evenly arranged within the conveyor.

10. Roller conveyor according to any of claims 1-8, characterized in that the roller conveyor is further provided with a detection device mounted on the jacking device for confirming whether the required height of the jacking position is reached.