CN210794661U

CN210794661U - Vertical pipe chain conveyor with chain tensioning device

Info

Publication number: CN210794661U
Application number: CN201921399919.7U
Authority: CN
Inventors: 何连起
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-19
Anticipated expiration: 2029-08-27

Abstract

A vertical pipe chain conveyor with a chain tensioning device comprises a conveyor pipeline, a motor and a chain disc, wherein the chain disc inside the conveyor pipeline is driven by the motor to circularly convey materials; the upper part and the lower part of the tensioning box are both rotatably provided with fixed tensioning wheels, the middle part of the tensioning box is horizontally and slidably provided with a movable tensioning wheel, and the outer wall of the tensioning box is adjustably provided with a chain tensioning device which extends into the tensioning box and elastically supports the movable tensioning wheel; the reference circles of the turnabout wheel and the fixed tensioning wheel are on the same central line. The vertical pipe chain conveyor solves the defects caused by chain looseness, can realize that a chain disc is always in a tensioned centered state in a pipeline, and enables the disc to be separated from a pipe wall, thereby eliminating or reducing the friction force between the disc and the pipe wall.

Description

Vertical pipe chain conveyor with chain tensioning device

Technical Field

The utility model belongs to the technical field of the conveyor technology and specifically relates to a perpendicular pipe chain conveyer with chain overspeed device tensioner.

Background

The pipe chain conveyer is a continuous conveyer for conveying powdery, small granular and small block-shaped bulk materials, and can convey the bulk materials horizontally, obliquely and vertically. The vertical type mainly completes the conveying in the vertical lifting direction; the bottom of the current vertical type has no chain tensioning device; the working principle of the pipe chain conveyor is as follows: in a closed pipe chain conveyor pipeline, a chain and a disc arranged on the chain are used as conveying members to drive materials to move along the pipeline. When the material is conveyed vertically, the material grains inside the pipe are pushed upwards by the chain sheets, and the feeding material in the lower part prevents the material in the upper part from sliding downwards to produce lateral pressure, so that the inner friction force of the material is increased. The pipe chain conveyor is used for conveying materials in an annular pipeline, an ascending route and a descending route are divided in the pipeline, the ascending route is called a loading section, and a chain disc runs with the materials; the descending is called no-load section (also called return section), and the chain disk is in no-material operation. The pipe chain conveyor has the characteristics of simple structure, good tightness, flexible arrangement and the like, and is widely applied to the industries of fine chemical engineering, pharmacy, grain, building materials and the like.

However, in the existing vertical pipe chain conveyor, the chain is not provided with a tensioning device. The chain is in a slack state in the pipe and the chain turns around the curved surface of the pipe at the bottom of the pipe. Under the action of traction force of a transmission system during operation, the chain can generate upward tension, the disk on the chain is tightly attached to the pipe wall of the bent section at the bottom turning part under the action of the tension, and the disk of the chain is balanced by the pipe wall of the bent section. Therefore, the chain firstly overcomes the friction force generated by the disc on the chain and the pipe wall when in motion. The larger the pulling force of the chain is, the larger the force of the pipe wall acting on the disc is, and the larger the friction force generated between the disc and the pipe wall is during movement. Therefore, the load of the motor is increased, and the abrasion of the disk and the pipeline is increased.

Through searching the published patents, the following patent documents most relevant to the technical scheme are found:

sprocket tensioning device (CN205687028U) discloses a sprocket tensioning device comprising: the sliding block set is provided with a chain wheel shaft, and the chain wheel is rotatably supported on the chain wheel shaft; the box body is internally provided with a guide rod group, and the sliding block group is arranged on the guide rod group in a sliding manner; at least one elasticity tensioning assembly, elasticity tensioning assembly include the connecting rod, go up fixed block and elastic element, and a tip of connecting rod is connected with corresponding slider in the sliding block set, and outside another tip of connecting rod stretched out the box, go up the fixed block setting on another tip of connecting rod, and elastic element overlaps on the connecting rod to elastic element's one end supports on last fixed block, and elastic element's the other end supports on the box. The utility model discloses a can guarantee that the chain that links to each other with the sprocket is in the tensioning state all the time, makes the material carry more stably.

The utility model provides a pipe chain machine (CN208963907U) with automatically regulated overspeed device tensioner discloses a pipe chain machine with automatically regulated overspeed device tensioner, including storing box, tensioning unit, alarm and connecting device, stores the inside through connection of box and has the tensioning unit, and stores one side fixed mounting of box and have the alarm, stores the opposite side fixed mounting of box and has connecting device. Through the combined use of pressure sensor and alarm, when the spring contracts to a certain extent, pressure sensor will detect the size of pressure, when pressure exceedes normal scope, pressure sensor can give the alarm with information transfer, make the alarm send the warning, the warning staff, through the combined use of first magnet and second magnet, can be convenient for open or close and store the box, make the staff be convenient for maintain the inside part of storage box, through setting up the rubber circle, not only can make the more stable of being connected between first flange and the second flange, and be convenient for dismantle first flange and second flange.

Through comparative analysis of the above published patent documents, the applicant believes that the vertical pipe chain conveyor in the present application has a great difference from the above published patent in terms of ensuring the chain tension of the vertical pipe chain conveyor and ensuring that the chain disc is separated from the wall of the machine pipe, and the above patent does not affect the novelty of the present application through analysis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide a perpendicular tube chain conveyer with chain overspeed device tensioner, this perpendicular tube chain conveyer solves the drawback that the chain lax brought, through chain overspeed device tensioner, can realize that the chain disc is in taut state in the pipeline all the time to make disc and pipe wall break away from, thereby eliminate or reduce the frictional force of disc and pipe wall.

A vertical pipe chain conveyor with a chain tensioning device comprises a conveyor pipeline, a motor and a chain disc, wherein the chain disc inside the conveyor pipeline is driven by the motor to circularly convey materials; the upper part and the lower part of the tensioning box are both rotatably provided with fixed tensioning wheels, the middle part of the tensioning box is horizontally and slidably provided with a movable tensioning wheel, and the outer wall of the tensioning box is adjustably provided with a chain tensioning device which extends into the tensioning box and elastically supports the movable tensioning wheel; the reference circles of the direction-changing wheel and the fixed tension wheel are on the same central line and coincide with the central line of the chain disk.

The chain tensioning device comprises a support frame, a screw rod, a tensioning spring and a chain wheel support plate, wherein one end of the support frame is fixedly connected with the conveyor pipeline, and the screw rod is axially limited and mounted at the other end of the support frame; the chain wheel supporting plate is movably arranged in the tensioning box, one end of the chain wheel supporting plate is rotatably connected with a wheel shaft of the movable tensioning wheel, and the other end of the chain wheel supporting plate is elastically supported and connected with the end part of the screw rod through a tensioning spring.

And the screw rod is in threaded connection with an adjusting nut, and the adjusting nut shaft is axially limited by a nut limiting groove fixedly arranged at one end of the support frame.

And spring fixing seats are fixedly arranged on the opposite end surfaces of the screw rod and the chain wheel supporting plate, and tensioning springs are supported in the spring fixing seats in a matched mode.

The utility model has the advantages and the technical effect be:

the utility model discloses a perpendicular pipe chain conveyer with chain overspeed device tensioner adds bend section at conveyer pipe inner wall and turns to and tensioning case to increase at the tensioning incasement and remove the take-up pulley, and install the chain overspeed device tensioner who promotes to remove take-up pulley elastic support chain disc additional on tensioning case lateral wall, this improvement can realize the take-up of chain, makes the chain be in taut state all the time. Therefore, the disk on the chain passing through the inclined section and the turning position is separated from the inner wall of the conveyor pipeline under the support of the direction-changing wheel and is not attached to the inner wall of the conveyor pipeline. The disadvantages caused by the friction resistance of the disk during movement are eliminated or reduced.

The utility model discloses a vertical pipe chain conveyer with chain overspeed device tensioner, set up bend wheel and fixed take-up pulley on same central line through the pitch circle, the axiality of effective control chain disc and conveyer pipeline, and two fixed take-up pulleys in the tensioning case play the support chain effect, and the take-up pulley of two fixed take-up pulleys middle parts horizontal slip plays the chain tensioning effect, and through the length that rotatory adjusting nut control screw rod axial stretched into the support frame inside, and then support the sprocket backup pad through tensioning spring buffering, rotate through the sprocket backup pad and connect the removal take-up pulley at last, and provide buffering holding power for the horizontal slip of removal take-up pulley; additionally, the utility model discloses still set up the spring fixing base on the subtend terminal surface of screw rod and sprocket backup pad very much, fix the both ends at the tensioning spring by the spring fixing base, avoid the tensioning spring to take place uncontrollable displacement deformation when buffering support sprocket backup pad.

The utility model discloses a perpendicular pipe chain conveyer with chain overspeed device tensioner, simple structure, compactness, convenient operation has effectively solved the chain drive resistance increase that disc friction conveyer pipe inner wall brought, unfavorable problems such as motor power consumption increase are a perpendicular pipe chain conveyer with higher creativity.

Drawings

FIG. 1 is a prior art vertical pipe chain conveyor;

FIG. 2 is a front view of the vertical pipe chain conveyor with chain tensioning device of the present invention;

FIG. 3 is a schematic view of the structure of the chain plate of the present invention;

FIG. 4 is a partial enlarged view of the position of the tensioning box of the present invention;

FIG. 5 is a partial enlarged view of the chain tensioner of the present invention;

in the figure: 1-a motor; 2-a discharge hole; 3, a chain; 4-conveyor pipes; 5-a feed inlet; 6-a tensioning box; 7-a redirecting wheel; 8-chain tensioning means; 9-moving the tension wheel; 10-fixing a tension wheel; 11-a disk; 12-a screw; 13-nut limiting groove; 14-an adjusting nut; 15-a support frame; 16-a tension spring; 17-spring fixing seat; 18-sprocket support plate.

Detailed Description

For further understanding of the contents, features and effects of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the invention should not be limited thereby.

A vertical pipe chain conveyor with a chain tensioning device comprises a conveyor pipeline 4, a motor 1 and a chain 3 disc 11, wherein the chain disc inside the conveyor pipeline is driven by the motor to circularly convey materials, a discharge hole 2 is formed in the top of the conveyor pipeline, a feed hole 5 is formed in the bottom of the conveyor pipeline, a bend wheel 7 is rotatably mounted at a corner in the conveyor pipeline, and a tensioning box 6 is formed in the bottom of the conveyor pipeline; the upper part and the lower part of the tensioning box are both rotatably provided with fixed tensioning wheels 10, the middle part of the tensioning box is horizontally and slidably provided with a movable tensioning wheel 9, and the outer wall of the tensioning box is adjustably provided with a chain tensioning device 8 which extends into the tensioning box and elastically supports the movable tensioning wheel; the reference circles of the direction-changing wheel and the fixed tension wheel are on the same central line and are superposed with the central line of the chain disk.

Moreover, the chain tensioning device comprises a support frame 15, a screw 12, a tensioning spring 16 and a chain wheel support plate 18, wherein one end of the support frame is fixedly connected with the pipeline of the conveyor, and the other end of the support frame is axially limited and provided with the screw; the chain wheel supporting plate is movably arranged in the tensioning box, one end of the chain wheel supporting plate is rotatably connected with a wheel shaft of the movable tensioning wheel, and the other end of the chain wheel supporting plate is elastically supported and connected with the end part of the screw rod through a tensioning spring.

And the screw rod is connected with an adjusting nut 14 in a threaded manner, and the adjusting nut shaft is axially limited by a nut limiting groove 13 fixedly arranged at one end of the support frame.

And, all be equipped with spring fixing base 17 on the subtend terminal surface of screw rod and sprocket backup pad admittedly, this spring fixing base is interior to cooperate and support the tensioning spring.

Additionally, the utility model discloses preferred, the mature product among the prior art is all adopted to disc, chain and motor.

Additionally, the utility model discloses it is preferred, remove the shaft of take-up pulley and take-up incasement wall's sliding connection mode adopts the ripe means among the prior art.

For a more clear description of the embodiments of the present invention, the following provides an example:

when the utility model is used, the particle materials enter the vertical pipe chain conveyor from the feed inlet at the bottom of the conveyor pipeline, then the motor drives the chain and the disc to circularly operate in the conveyor pipeline, as shown in fig. 2, the particle materials are discharged from the discharge outlet at the top of the vertical pipe chain conveyor after being lifted by the chain and the disc, namely, the materials are transported in the conveyor pipeline at the right half of the vertical pipe chain conveyor in fig. 2 and are in a loading section, and the conveyor pipeline at the left half of the vertical pipe chain conveyor is internally provided with a conveying, supporting and tensioning mechanism for the chain and the disc and is in an idle section (also called a return section); the conveying, supporting and tensioning mechanism comprises a bend wheel arranged at the top corner of the conveyor pipeline and two fixed tensioning wheels arranged in the tensioning box, and it is noted that reference circles of the bend wheel and the fixed tensioning wheels are on the same central line and coincide with the central line of a chain disc, so as to ensure the coaxiality of the chain on the inner wall of the conveyor pipeline and avoid the disc friction with the inner wall of the conveyor pipeline; finally, as shown in fig. 3, the length of the screw rod extending into the support frame is adjusted by rotating the adjusting nut on the screw rod, so that the elastic supporting force applied to the chain wheel supporting plate by the tensioning spring is adjusted, the movable tensioning wheel is controlled to horizontally slide in the tensioning box, and the chain is elastically tensioned.

The utility model discloses a explain overspeed device tensioner's protection scope: it will be apparent to those skilled in the art that modifications and variations can be made in the above description and all such modifications and variations are intended to be within the scope of the appended claims, and it is intended that the present tensioning device not only be protected by a structure in which two fixed direction changing wheels plus one movable direction changing wheel, but also be limited to spring tensioning for tensioning mechanisms, such as tensioning by pulling a weight box with a chain or wire, and be infringed.

Claims

1. The utility model provides a perpendicular pipe chain conveyer with chain overspeed device tensioner, includes conveyer pipeline, motor and chain disc, and wherein the inside chain disc of conveyer pipeline drives the endless conveyor material by the motor, and the top system of this conveyer pipeline has the discharge gate, and the bottom system of conveyer pipeline has feed inlet, its characterized in that: a bend wheel is rotatably mounted at a corner in the conveyor pipeline, and a tensioning box is arranged at the bottom of the conveyor pipeline; the upper part and the lower part of the tensioning box are respectively and rotatably provided with a fixed tensioning wheel, the middle part of the tensioning box is horizontally and slidably provided with a movable tensioning wheel, and the outer wall of the tensioning box is adjustably provided with a chain tensioning device which extends into the tensioning box and elastically supports the movable tensioning wheel; and the reference circles of the direction-changing wheel and the fixed tension wheel are on the same central line and are superposed with the central line of the chain disk.

2. The vertical pipe chain conveyor with chain tensioning device of claim 1, wherein: the chain tensioning device comprises a support frame, a screw rod, a tensioning spring and a chain wheel support plate, wherein one end of the support frame is fixedly connected with the conveyor pipeline, and the screw rod is axially installed at the other end of the support frame in a limiting mode; the chain wheel supporting plate is movably arranged in the tensioning box, one end of the chain wheel supporting plate is rotatably connected with a wheel shaft of the movable tensioning wheel, and the other end of the chain wheel supporting plate is elastically supported and connected with the end part of the screw rod through a tensioning spring.

3. The vertical pipe chain conveyor with the chain tensioner as set forth in claim 2, wherein: the screw rod is in threaded connection with an adjusting nut, and the adjusting nut shaft is axially limited by a nut limiting groove fixedly arranged at one end of the support frame.

4. The vertical pipe chain conveyor with the chain tensioner as set forth in claim 2, wherein: and spring fixing seats are fixedly arranged on the opposite end surfaces of the screw rod and the chain wheel supporting plate, and tensioning springs are supported in the spring fixing seats in a matched manner.