CN202358699U

CN202358699U - Screw unloading machine

Info

Publication number: CN202358699U
Application number: CN2011204320689U
Authority: CN
Inventors: 张兆连
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-04
Filing date: 2011-11-04
Publication date: 2012-08-01
Anticipated expiration: 2021-11-04

Abstract

The utility model discloses a screw unloading machine, which comprises a cart mechanism, a lifting mechanism, a rail framework, an unloading mechanism and a cab, and is characterized in that the rail framework with a four-prism framework structure is fixed on the cart mechanism; the bottommost end of the rail framework is higher than the upper rim of a compartment of a coal conveying vehicle; the lifting mechanism is arranged in a U-shaped seat of a lifting framework; the unloading mechanism comprises an unloading frame and catch wheel shafts, a lifting arm, a packing auger body, a packing auger driving chain wheel group and a packing auger driving mechanism which are arranged in the unloading frame; catch wheels of the catch wheel shafts are arranged in a lifting rail; and the lifting arm is connected with the lifting chain. According to the screw unloading machine, materials are easy to discharge, the unloading resistance is reduced, and the unloading efficiency is improved; the rail framework has the four-prism framework structure, so that the stress condition of the chain is improved, the oil leakage situation is reduced, and the problem that the chain collides with a chain wheel cover is solved; moreover, the screw unloading machine is convenient to overhaul because of a simple mechanism; and the mass of a driven part is low, and the matched contact is low, so that a relatively large driving force is not required.

Description

Spiral unloading machine

Technical field

The utility model belongs to the handling equipment technical field in the power plant soot system, and specifically a kind of thermal powerplant is used for the coal-fired spiral unloading machine of railway.

Background technology

Spiral unloading machine is that thermal powerplant is used for a kind of major equipment of unloading with the railway transportation fire coal, and in the use of the existing many decades of power plant, each power plant generally adopts.But existing spiral unloading machine has a lot of irrational places, and further improved necessity is arranged.

The problem that the car unloader that uses at present exists is following:

1, the arc track framework lower edge of spiral unloading machine (large vehicle walking orbital distance 6.7m-8m car unloader) lifting mechanism is lower than the coal car railway carriage or compartment, causes the middle clamshell doors in compartment freely to open, and makes material get rid of difficulty;

2, because spiral unloading machine adopts screw auger to unload; So there is bigger axial force; The wheel shaft of working as that this axial force passes through acts on the track-frame of lifting mechanism, makes the track-frame distortion along screw auger axial direction dilatating and deformable, causes the lifting mechanism operation not smooth;

3, lifting mechanism adopts the arc track form earlier; Recurrence rises that the center of gravity of screw auger constantly changes in the process, and the center of gravity of the direction wrench of a force system auger of the tension power of the high more chain that hoists of the height of standing up is far away more, and resistance arm is long more; Pulling force is big more; Simultaneously the gear wheel axle is stressed also just big more up and down for screw auger, causes when wheel shaft and often damages, and the stressed shakiness of chain ruptures easily;

4, the shaft end seal of screw auger part haves much room for improvement, because of existing structure advances the damage that powder often causes bearing easily.

Summary of the invention

The purpose of the utility model provides a kind of thermal powerplant and is used for the coal-fired spiral unloading machine of railway.

The purpose of the utility model is achieved in that it includes big mechanism of car, lifting mechanism, track-frame, unload mechanism and operator's compartment, it is characterized in that: big mechanism of car is made up of the end carriage of girder, vertical girder and the cart driver train that is arranged on the end carriage two ends; Track-frame is provided with the track column by four vertical level and connects two upper end main beams of four track columns, two upper end end floor beams, two lower end main beams and two straight quadrangular framed structures that the lower end end floor beam is formed; This track-frame least significant end is higher than the upper limb in coaler compartment; Be provided with and the cooresponding U type of upper end main beam seat in the upper end of track column; The outside at corresponding two upper end main beams is respectively arranged with goat installation device; This goat installation device is fixed on the girder of big mechanism of car, on every track column, also is provided with the track that hoists; Lifting mechanism include the driving that hoists that is installed on the girder, with hoist drive bonded assembly hoist drive sprocket set, through hoist chain and the drive sprocket set bonded assembly that the hoists passive chain wheel set that hoists; The drive sprocket set that hoists is arranged on through the drive sprocket bearing seat in the U type seat of the framework that hoists, and the passive chain wheel set that hoists links to each other with the track column lower end base plate that hoists through regulating bolt; Unload mechanism include unload vehicle frame, unload the rising arm that is provided with between the vehicle frame, cut with scissors imperial body, hinge dragon driving chain wheels, cut with scissors imperial driver train, gear wheel axle and following gear wheel axle on the same perpendicular vertical plane; Rising arm and last gear wheel axle and following gear wheel axle not on the perpendicular vertical plane and on the rising arm horizontal direction between last gear wheel axle and following gear wheel axle; Gear wheel on last gear wheel axle and the following gear wheel axle places among the track that hoists, and rising arm links to each other with the chain that hoists.

The imperial body of described hinge is provided with crushing teeth, and this crushing teeth outside face has wearing layer.

Unload the driving connection location of vehicle frame on the imperial body of hinge and be positioned at two ends, cut with scissors imperial body and form with three parts of both sides by unloading between the vehicle frame near the imperial body of hinge.

The advantage of the utility model is following:

1, the track-frame lower edge is promoted to the upper limb in coal car railway carriage or compartment, the clamshell doors in coal car coal car railway carriage or compartment can freely must be opened, can make material be easy to get rid of, reduce the resistance of unloading, improve the efficient of unloading;

2, track-frame adopts straight quadrangular framed structure; Change the original arc mode of hoisting into the mode that vertically hoists, the tension that makes chain is improved the stressing conditions of chain on the center of gravity of screw auger; The retarder of auger has been removed 90 degree upsets from simultaneously; Reduced the leakage of oil situation, the chain that cuts with scissors imperial driving chain wheels has also been removed the upset of 90 degree from, avoids the problem that causes chain and chain wheel cover to collide;

3, gear wheel axle and rising arm are made it not on a vertical line,, after the upwards lifting of track-frame, do not increase the length of auger arm the effective length of utilizing the track column of limits,

4, on the hinge dragon body of three segments combined two ends drivings, increase crushing teeth; Under fitted position unmodified situation, realize that the common mechanism of unloading exchanges with freezing the coal mechanism of unloading, unload and solve north power plant in winter under the situation of freezing coal equipment and unload the problem of freezing coal not increasing special use; This mechanism is simple in addition; So maintenance is convenient, and is little by the quality of drive part, so cooperate contact not need bigger propulsive effort less.

Description of drawings

Fig. 1 is the structural representation sketch of first kind of instance of the utility model;

Fig. 2 is the A-A direction cutaway view of Fig. 1;

Fig. 3 is the structural representation of big mechanism of car 1 in the utility model;

Fig. 4 is the right elevation of Fig. 3;

Fig. 5 is the structural representation of the utility model middle orbit framework 3;

Fig. 6 is the B-B direction cutaway view of Fig. 5;

Fig. 7 is the structural representation of lifting mechanism 2 in the utility model;

Fig. 8 is the unload structural representation of mechanism of first kind of instance in the utility model;

Fig. 9 is the right elevation of Fig. 8;

Figure 10 is the unload structural representation of mechanism of second kind of instance in the utility model;

Figure 11 is the right elevation of Figure 10.

The specific embodiment

Instance 1

Shown in Fig. 1～9; The keystone configuration of the utility model includes big mechanism of car 1, lifting mechanism 2, track-frame 3, unload mechanism 4 and operator's compartment 5, and big mechanism of car is made up of the end carriage 11 of girder 10, vertical girder and the cart driver train 9 that is arranged on the end carriage two ends; Track-frame 3 is that four vertical level are provided with track column 12 and connect two of four track columns upper end main beams 13, two upper end end floor beams 14, two lower end main beams 15 and two straight quadrangular framed structures that lower end end floor beam 16 is formed; This track-frame least significant end is higher than the upper limb in coaler compartment; Be provided with and upper end main beam 13 cooresponding U type seats 35 in the upper end of track column 12; The outside at corresponding two upper end main beams is respectively arranged with

goat installation device

18,19; This goat installation device is fixed on the girder 10 of big mechanism of car, on every track column, also is provided with the track 17 that hoists; Lifting mechanism 2 include be installed in hoisting on the girder 10 drive 20, with hoist drive bonded assembly hoist drive sprocket set 21, through hoist chain 25 and the drive sprocket set bonded assembly that the hoists passive chain wheel set 22 that hoists; 21 groups of the drive sprockets of hoisting are arranged on through the drive sprocket bearing seat in the U type seat 35 of track-frame 3, hoist to be linked to each other with the track column lower end base plate 24 that hoists through regulating bolt 8 by 22 groups of movable sprockets; Unload mechanism 4 include unload vehicle frame 31, unload the imperial driver train of the imperial driving chain wheels of the imperial body of the rising arm 28 that is provided with between the vehicle frame, hinge 30, hinge 32, hinge 29, gear wheel axle 26 and following gear wheel axle 23 on the same perpendicular vertical plane; Rising arm 28 and last gear wheel axle 26 and following gear wheel axle 23 not on the perpendicular vertical plane and on rising arm 28 horizontal directions between last gear wheel axle 26 and following gear wheel axle 23; The last gear wheel 27 of last gear wheel axle 26 and the following gear wheel 36 of following gear wheel axle 23 place among the track 17 that hoists, and rising arm 28 links to each other with the chain 25 that hoists.

Cut with scissors imperial body 30 and be the one helical structure, unload the two ends that the driving connection location of vehicle frame 31 on the imperial body of hinge is positioned at the imperial body of hinge.

Principle of work: spiral unloading machine is used for unloading with the railway transportation fire coal; Be suitable for vehicle and be vehicles such as spacious 60, spacious 62, spacious 70, during car unloader work, the mechanism of unloading stretches in the compartment under the driving of lifting mechanism; The hinge dragon body rotation of mechanism of unloading is pushed material from the side door of vehicle open along the axial direction of auger body and is discharged; Write rear-dump wagon mechanism when a joint compartment and risen, cart moves, and car breaks a joint.

Instance 2

Shown in Figure 10～11, the difference of instance 2 and instance 1 is to cut with scissors imperial body 34 and is provided with crushing teeth 33, and this crushing teeth outside face has wearing layer.Unload the driving connection location of vehicle frame 31 on the imperial body 34 of hinge and be positioned at two ends, cut with scissors imperial body 34 and form with three parts of both sides by unloading between the vehicle frame 31 near the imperial body of hinge.Its principle of work is consistent with instance 1, the Therefore, omited.In sum, realized the purpose of the utility model.

Claims

1. spiral unloading machine, it includes big mechanism of car, lifting mechanism, track-frame, unload mechanism and operator's compartment, it is characterized in that: big mechanism of car is made up of the end carriage of girder, vertical girder and the cart driver train that is arranged on the end carriage two ends; Track-frame is provided with the track column by four vertical level and connects two upper end main beams of four track columns, two upper end end floor beams, two lower end main beams and two straight quadrangular framed structures that the lower end end floor beam is formed; This track-frame least significant end is higher than the upper limb in coaler compartment; Be provided with and the cooresponding U type of upper end main beam seat in the upper end of track column; The outside at corresponding two upper end main beams is respectively arranged with goat installation device; This goat installation device is fixed on the girder of big mechanism of car, on every track column, also is provided with the track that hoists; Lifting mechanism include the driving that hoists that is installed on the girder, with hoist drive bonded assembly hoist drive sprocket set, through hoist chain and the drive sprocket set bonded assembly that the hoists passive chain wheel set that hoists; The drive sprocket set that hoists is arranged on through the drive sprocket bearing seat in the U type seat of the framework that hoists, and the passive chain wheel set that hoists links to each other with the track column lower end base plate that hoists through regulating bolt; Unload mechanism include unload vehicle frame, unload the rising arm that is provided with between the vehicle frame, cut with scissors imperial body, hinge dragon driving chain wheels, cut with scissors imperial driver train, gear wheel axle and following gear wheel axle on the same perpendicular vertical plane; Rising arm and last gear wheel axle and following gear wheel axle not on the perpendicular vertical plane and on the rising arm horizontal direction between last gear wheel axle and following gear wheel axle; Gear wheel on last gear wheel axle and the following gear wheel axle places among the track that hoists, and rising arm links to each other with the chain that hoists.

2. spiral unloading machine according to claim 1 is characterized in that: the imperial body of described hinge is provided with crushing teeth, and this crushing teeth outside face has wearing layer.

3. spiral unloading machine according to claim 2 is characterized in that: unload the driving connection location of vehicle frame on the imperial body of hinge and be positioned at the two ends near the imperial body of hinge, cut with scissors imperial body and form with three parts of both sides by unloading between the vehicle frame.