CN211870492U

CN211870492U - Material conveying system

Info

Publication number: CN211870492U
Application number: CN201922306589.9U
Authority: CN
Inventors: 李明玉; 刘帅; 刘倩倩; 李德华; 徐秀芹; 单既华
Original assignee: Shandong Province Linqu County Juneng Drying Equipment Co ltd
Current assignee: Shandong Province Linqu County Juneng Drying Equipment Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-11-06
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a material conveying system, including the conveying chain of both sides, the interval is equipped with a plurality of material brackets between the conveying chain of both sides, the material bracket is connected perpendicularly on the link joint of conveying chain, the both ends of conveying chain all are equipped with drive arrangement, drive arrangement includes driving motor and with the transmission shaft of driving motor's output shaft, the both ends of transmission shaft are equipped with the sprocket respectively, the conveying chain of both sides corresponds the transmission respectively and locates on the sprocket at both ends; the output shaft of the driving motor at one end is connected with the transmission shaft at the corresponding end through an Oldham coupling, and the output shaft of the driving motor at the other end is connected with the transmission shaft at the corresponding end through a torque limiter. This material conveying system can prevent effectively that driving motor from the operation of overload, prevents effectively that driving motor from damaging.

Description

Material conveying system

Technical Field

The utility model relates to the technical field of mechanical equipment, specifically speaking relates to a material conveying system.

Background

The existing board dryer adopts flat plate conveying, namely, veneers are flatly paved in the dryer to move slowly in a horizontal state, and the rising hot air is utilized to take away moisture. In order to solve these problems, chinese patent CN204574736U discloses a vertical single board drying production machine, in which a chain conveyor is arranged in an inner cavity of a housing, a single board support is fixedly mounted on a chain of the chain conveyor, single boards are sequentially placed on the single board support, the vertical single board moves forward in the inner cavity of the housing, and hot air enters the inner cavity of the housing to heat and dry the single boards. The drying machine with the structure has the advantages of large production capacity, small hot air resistance and high drying speed, but the power required by the chain conveyor is relatively large, only one motor is arranged to drive the chain conveyor to run under overload sometimes, the motor is easily damaged, and only one motor is arranged, so that the motor needs to be stopped for maintenance when a fault occurs, and the production is influenced. And set up two motors, sometimes the simultaneous operation will be extravagant when not fully loaded, when two motors simultaneous workings, two motors are difficult to accomplish synchronous unanimously, and the motor can lead to the epaxial moment of torsion of main shaft too big because asynchronous, can cause the harm to two motors.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the material conveying system can effectively prevent the overload operation of the driving motor and effectively prevent the damage of the driving motor.

In order to solve the technical problem, the technical scheme of the utility model is that:

a material conveying system comprises conveying chains on two sides, wherein a plurality of material brackets are arranged between the conveying chains on the two sides at intervals, the material brackets are vertically connected to chain plates of the conveying chains, driving devices are arranged at two ends of each conveying chain, each driving device comprises a driving motor and a transmission shaft connected with an output shaft of the driving motor, chain wheels are arranged at two ends of each transmission shaft respectively, and the conveying chains on the two sides are arranged on the chain wheels at the two ends in a corresponding transmission mode respectively;

the output shaft of the driving motor at one end is connected with the transmission shaft at the corresponding end through an Oldham coupling, and the output shaft of the driving motor at the other end is connected with the transmission shaft at the corresponding end through a torque limiter.

Preferably, the driving motor corresponding to the end of the Oldham coupling is slidably arranged on the motor base, and the driving motor is detachably and fixedly connected with the motor base through a bolt.

Preferably, the conveyor chain of each side is a double chain.

Preferably, a chain connecting plate is fixedly arranged on the middle row of chain plates of the double chains.

Preferably, the chain connecting plate is integrally arranged on the middle row of chain plates of the double chains.

Preferably, the material bracket includes two piece at least parallel arrangement's steel pipe, the both ends of steel pipe are equipped with two reinforcing bars, the reinforcing bar passes the steel pipe, and with steel pipe fixed connection, two leave the clearance between the reinforcing bar, an end fixedly connected with bracket connecting plate of reinforcing bar, bracket connecting plate with the chain connecting plate passes through bolt detachably fixed connection.

Preferably, the steel pipe closest to the conveying chain is provided with a supporting plate, the supporting plate comprises a connecting portion connected with the steel pipe, the connecting portion is vertically connected with a supporting portion, and the supporting portion is provided with a bearing portion in a bending mode towards a direction away from the conveying chain.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the utility model discloses a material conveying system all sets up drive arrangement at the both ends of conveying chain, and the output shaft of driving motor among the drive arrangement of one end passes through the crosshead shoe coupling joint transmission shaft, and crosshead shoe coupling realizes the clutch function, makes the system can be nimble according to the drive arrangement of in-service power selection only use one end, still uses the drive arrangement at both ends simultaneously. The output shaft of driving motor among the drive arrangement of the other end passes through the torque limiter and connects the transmission shaft, reaches the certain degree when torsion, and the torque limiter can part, makes driving motor and transmission shaft separation, avoids two driving motor injured, after two driving motor steady operation, the moment of torsion reachs the back in the appropriate scope, and the transmission shaft is held tightly to the torque limiter, and two driving motor begin simultaneous working to play the guard action well to two driving motor, the utility model discloses a this kind of structure can prevent effectively that driving motor from the overload operation, prevents effectively that driving motor from damaging.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic structural view of a material conveying system according to the present invention;

FIG. 2 is a schematic left side view of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the conveyor chain of FIG. 1;

FIG. 4 is a schematic top view of FIG. 3;

FIG. 5 is a schematic left side view of FIG. 3;

FIG. 6 is a schematic view of the driving device at one end of FIG. 1;

FIG. 7 is a schematic view of the structure of the driving device at the other end in FIG. 1;

FIG. 8 is a schematic structural view of the material tray of FIG. 1;

FIG. 9 is a schematic view of the material carrier and conveyor chain connection of FIG. 1;

FIG. 10 is a perspective view of the material carrier and conveyor chain connection of FIG. 1;

FIG. 11 is a schematic view of the structure of part A of FIG. 10;

in the figure: 1-a conveyor chain; 11-a chain plate; 12-a chain link plate; 13-a roller; 14-a pin shaft; 2-a material bracket; 21-a bracket connection plate; 22-a steel pipe; 23-reinforcing steel bars; 24-a pallet; 241-a connecting part; 242-a support portion; 243-support part; 3-a first drive; 31-a first drive motor; 32-oldham coupling; 33-a first transmission shaft; 34-a first sprocket; 35-a first bearing seat; 36-a first bearing; 4-a second drive; 41-a second drive motor; 42-torque limiter; 43-a second drive shaft; 44-a second sprocket; 45-a second bearing block; 46-second bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 11, the material conveying system of the embodiment includes conveying chains 1 on two sides, a plurality of material brackets 2 are arranged between the conveying chains 1 on two sides at intervals, each conveying chain 1 includes a link plate 11, a roller 13 and a pin 14, the material brackets 2 are vertically connected to the link plate 11 of the conveying chain 1, and the conveying chain 1 on each side is a double chain, which not only enhances the strength of the conveying chain and makes the chain not easily broken, but also does not make the chain pitch too large, thereby reducing the yield of the equipment. Due to the arrangement of the double chains, the pitch can be moderate, and the yield of equipment is ensured. The middle row chain plate 11 of the double chains is integrally provided with a chain connecting plate 12.

Material bracket 2 includes two piece at least parallel arrangement's steel pipe 22, and the both ends of steel pipe 22 are equipped with two reinforcing bars 23, and reinforcing bar 23 passes steel pipe 22, and with steel pipe 22 fixed connection, leave the clearance between two reinforcing bars 23, adopt steel pipe 22 and reinforcing bar 23 to form material bracket 2, and intensity is high, is difficult to warp, and a tip welded connection of reinforcing bar 23 has bracket connecting plate 21, and bracket connecting plate 21 passes through bolt detachably fixed connection with chain connecting plate 12. The steel pipe 22 closest to the conveyor chain 1 is provided with the pallet 24, the pallet 24 includes a connecting portion 241 connected to the steel pipe 22, the connecting portion 241 is vertically connected to a supporting portion 242, and the supporting portion 242 is provided with a supporting portion 243 bent in a direction away from the conveyor chain 1. Greatly facilitating the manual work placing the drying material on the material bracket 2, for example, when the wood board is placed, the wood board can be moved forward to the supporting part 242 of the supporting plate 24 along the supporting part 243, greatly improving the efficiency of placing the wood board, and the supporting part 242 plays a role of supporting the bottom of the wood board, the supporting part 242 can prevent the wood board from leaking, the condition of failure caused by the wood board leaking is prevented, and the failure rate is low.

And driving devices are arranged at two ends of the conveying chain 1, wherein one end of the conveying chain is provided with a first driving device 3, and the other end of the conveying chain is provided with a second driving device 4.

The first driving device 3 comprises a first driving motor 31, an output shaft of the first driving motor 31 is connected with a first transmission shaft 33 through an oldham coupling 32, a motor base (not shown in the figure) is arranged below the first driving motor 31, a slideway can be arranged on the motor base, the first driving motor 31 can be slidably arranged on the slideway of the motor base, the first driving motor 31 and the motor base are detachably and fixedly connected through a bolt, or a long strip-shaped hole can be arranged on the motor base, the first driving motor 31 can be pushed forwards or pulled backwards, when the first driving motor 31 is pushed forwards, the first driving motor 31 is connected with the oldham coupling 32, when the first driving motor 31 is pulled backwards, the first driving motor 31 is disconnected with the oldham coupling 32, so that the oldham coupling plays a role of a clutch, then the mounting hole of the first driving motor 31 is fixedly connected with the elongated hole on the motor base through a bolt. The crosshead shoe coupling has the advantages of buffering, shock absorption, wear resistance, convenient assembly and disassembly and the like, and the working temperature is-35 to +80 ℃. The polyurethane elastomer is limited by the convex claw block, so that internal deformation caused by impact and external deformation caused by centrifugal force can be avoided; the large concave surface of the claw makes the surface pressure on the involute tooth small, and the tooth can not be worn or deformed even if the tooth bears overload.

The second driving device 4 comprises a second driving motor 41, and an output shaft of the second driving motor 41 is in transmission connection with a second transmission shaft 43 through a torsion limiter 42. The torque limiter 42 is also named as a torque limiter, a safety coupling, a safety clutch and the like, has the advantages of low price, simple structure, convenience in disassembly and assembly and maintenance, high reaction speed after overload, high accuracy of set torque and longer service life, and can output an electric signal after being matched with a microswitch to be overloaded so as to conveniently alarm or automatically stop a motor. The method is widely applied to the industries of electronic equipment, automatic production lines, conveyors and the like. The torque limiter is a part for connecting the main engine and the working machine, and has the main function of overload protection, and when the required torque exceeds the set value due to overload or mechanical failure, the torque limiter limits the torque transmitted by the transmission system in a slipping mode, and can stop the motor and the speed reducer by outputting a signal while slipping, and automatically recover the connection after the overload condition disappears.

First drive shaft 33's both ends are equipped with first sprocket 34 respectively, second drive shaft 43's both ends are equipped with second sprocket 44 respectively, for the setting of the two chains of cooperation, all be provided with twice sprocket on first sprocket 34 and the second sprocket 44, the conveying chain 1 of both sides corresponds the transmission respectively and locates on the sprocket at both ends, install conveying chain 1 at the sprocket upside and the downside at both ends during the installation, upside chain and downside chain pitch number are unanimous, straighten the chain, then with bolt and nut with bracket connection board 21 and chain connection board 12 fixed connection. The two ends of the first transmission shaft 33 can be further provided with a first bearing seat 35 and a first bearing 36, and the two ends of the second transmission shaft 43 can be further provided with a second bearing seat 45 and a second bearing 46, so as to be convenient for installation and connection with a rack. The utility model discloses a this kind of structure, when motor power requires less, can draw and move back first driving motor 31, makes first driving motor 31 and the disconnection of oldham coupling 32, then first drive arrangement 3 no longer works, only drives the motion of conveying chain 1, transported substance material by 4 work of second drive arrangement. When the requirement of the transmission power is large, the first driving motor 31 can be pushed forward to connect the first driving motor 31 with the oldham coupling 32, the transmission chain 1 is driven to work under the action of the first driving motor 31 and the second driving motor 41, the second driving motor 41 and the second driving shaft 43 are connected with each other through the torque limiter 42 on the second driving shaft 43, the chain transmission of the transmission chain structure is adopted in the utility model, because the chain transmission does not elastically slide, when the two driving motors work simultaneously, the driving motors can cause overlarge torque on the driving shafts because of desynchrony, and can cause damage to the two driving motors, in order to effectively prevent the damage, the torque limiter 42 is connected between the second driving motor 41 and the second driving shaft 43, when the torque reaches a certain degree, the torque limiter 42 can be separated to separate the second driving motor 41 and the second driving shaft 43, avoid two driving motor be injured, after two driving motor steady operation, after the moment of torsion reachd the appropriate within range, the transmission shaft was held tightly to torque limiter 42, and two driving motor begin simultaneous working to play guard action well to two driving motor, the utility model discloses a this kind of structure can prevent effectively that driving motor from the operation of overload, prevents effectively that driving motor from damaging.

Additionally, the utility model discloses a this kind of bi-motor structure, when a driving motor broke down, can break off driving motor and connect, another driving motor can drive equipment operation as the reserve motor reversal, overhauls under the condition that does not delay production.

During actual operation, driving motor drives the transmission shaft rotatory, and it is rotatory to drive the epaxial sprocket of transmission when the transmission shaft is rotatory, and the sprocket drives the conveying chain rotatory, and fixed material bracket takes place rotatoryly along with the sprocket along with conveying chain uniform motion above the conveying chain, when material to reach one end, material bracket, and during the rotation, corresponding angle is staggered to double-phase adjacent material bracket, and double-phase adjacent material bracket separates, reserves corresponding working space, is convenient for take out the material. This conveyer adopts the chain to carry, can guarantee the even transport of material, can not lead to the material to pile up at the pan feeding mouth because of the elastic sliding of belt conveying, delays production, guarantees the smooth work of production line. The use of the double-transmission motor can ensure that enough operation space can be reserved at the feed inlet and the discharge outlet for distributing and discharging, so that the equipment space can be effectively utilized, and the yield is improved.

The oldham coupling and the torque limiter may be commercially available products, and the internal structure thereof is well known to those skilled in the art and will not be described in detail herein.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. The utility model provides a material conveying system, includes the conveying chain of both sides, both sides the interval is equipped with a plurality of material brackets between the conveying chain, the material bracket connect perpendicularly in on the link joint of conveying chain, its characterized in that: the two ends of the conveying chain are respectively provided with a driving device, the driving device comprises a driving motor and a transmission shaft connected with an output shaft of the driving motor, the two ends of the transmission shaft are respectively provided with a chain wheel, and the conveying chains at the two sides are respectively correspondingly arranged on the chain wheels at the two ends in a transmission manner;

2. The material transport system of claim 1, wherein: the driving motor corresponding to the end where the Oldham coupling is located is slidably arranged on the motor base, and the driving motor is detachably and fixedly connected with the motor base through bolts.

3. The material transport system of claim 2, wherein: the conveyor chains on each side are double chains.

4. The material transport system of claim 3, wherein: and chain connecting plates are fixedly arranged on the middle row of chain plates of the double chains.

5. The material transport system of claim 4, wherein: and chain connecting plates are integrally arranged on the middle row of chain plates of the double chains.

6. The material transport system of claim 4, wherein: the material bracket comprises at least two steel pipes arranged in parallel, two steel bars are arranged at two ends of each steel pipe, the steel bars penetrate through the steel pipes and are fixedly connected with the steel pipes, gaps are reserved between the steel bars, one end part of each steel bar is fixedly connected with a bracket connecting plate, and the bracket connecting plates are fixedly connected with the chain connecting plates through bolts in a detachable mode.

7. The material transport system of claim 6, wherein: the steel pipe closest to the conveying chain is provided with a supporting plate, the supporting plate comprises a connecting portion connected with the steel pipe, the connecting portion is vertically connected with a supporting portion, and the supporting portion is provided with a bearing portion in a bending mode towards the direction away from the conveying chain.