CN208616734U - A kind of screw-rod structure in concrete conveying system - Google Patents
A kind of screw-rod structure in concrete conveying system Download PDFInfo
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- CN208616734U CN208616734U CN201821338237.0U CN201821338237U CN208616734U CN 208616734 U CN208616734 U CN 208616734U CN 201821338237 U CN201821338237 U CN 201821338237U CN 208616734 U CN208616734 U CN 208616734U
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Abstract
The utility model provides the screw-rod structure in a kind of concrete conveying system, belongs to construction equipment technical field.This screw-rod structure includes at least two shafts and a conveyance conduit being set in outside shaft, is connected between adjacent shafts by a planetary reduction gear；Planetary reduction gear includes shell, sun gear and several planetary gears, and inner walls have ring gear, engage between ring gear and each planetary gear, each planetary gear is engaged with sun gear；The connection type of adjacent two shafts and planetary reduction gear are as follows: the upper end positioned at the shaft of lower end connects shell, and the lower end positioned at the shaft of upper end connects sun gear；It is fixedly installed spiral helicine bearing shell outside each shaft, the hand of spiral of the bearing shell in adjacent shafts is opposite；The reduction ratio of planetary reduction gear is 0.2~0.95.The utility model has many advantages, such as to be capable of increasing conveying negative pressure, raising transfer efficiency.
Description
Technical field
The invention belongs to construction equipment technical field, a kind of be related in concrete conveying system screw-rod structure.
Background technique
Screw machine is widely used in every profession and trade, such as building materials, chemical industry, electric power, metallurgy, coal, grain industry, is suitable for water
Put down or tilt conveying powdered, powdery and small block material, such as coal, ash, slag, cement, grain.
In building trade, screw machine is widely used in the feeding of concrete, feeding height is able to ascend, for existing market
On tilt-lift conveying screw machine for, there are the following problems:
1, due to single shaft, bearing shell is set outside shaft, there are gap between bearing shell and conveyance conduit, delivery head compared with
It in the case where height, is influenced by concrete bearing, delivery head is higher, gap of the concrete between bearing shell and conveyance conduit
The material of interior leakage is more, that is, forms feed back, and transfer efficiency is caused to reduce, and due to single shaft, load is also very big, unfavorable
In shaft traveling comfort；
2, in general, existing screw machine cooperates speed reducer using driving motor, shaft is then reconnected, because of shaft
Rotation speed need lower, to adapt to the transport of the relatively large concrete of viscosity, the setting of speed reducer not only makes driving electricity
The kinetic energy efficiency of machine is lower, moreover, because deceleration is bigger, body is caused to shake, and noise is larger, is unfavorable for screw machine
Overall performance；
3, due to the presence in gap between bearing shell and conveyance conduit, in the end of conveyance conduit, conveyance conduit
The storage of concrete is fewer, existing screw machine, and using single shaft, revolving speed is remained the same from beginning to end, and is that there are great Rong in conveyance conduit
The conveying continuity in long-pending gap, concrete is poor, and negative pressure can not be formed in conveyance conduit, causes concrete feed back,
Transfer efficiency substantially reduces, and even, when delivery head reaches a certain level, concrete can not be delivered to specified altitude assignment completely；
4, there is also precipitatings and layering during transportation for concrete, since screw machine is to make coagulation by the rotation of bearing shell
What soil was promoted, and revolving speed is relatively slow, actually during transportation to the stirring of concrete be almost without, if conveying
Height is higher, and only concrete comprehensive performance changes, and is unable to satisfy the watering requirement of concrete；
5, the tilt angle of conveyance conduit can not be adjusted, and the change of pouring position is realized in the position for needing to control ground installation
Change.
Summary of the invention
In view of the above problems existing in the prior art, the purpose of the present invention is to provide in a kind of concrete conveying system
Screw-rod structure, the technical problem to be solved by the present invention is to how to eliminate be delivered up concrete during concrete feed back make
At negative pressure reduce.
Object of the invention can be realized by the following technical scheme: the screw-rod structure in a kind of concrete conveying system,
It is characterized in that, this screw-rod structure includes at least two shafts and a conveyance conduit being set in outside shaft, adjacent shafts it
Between by a planetary reduction gear be connected；
The planetary reduction gear includes shell, sun gear and several planetary gears, and the inner walls have ring gear, institute
It states and is engaged between ring gear and each planetary gear, each planetary gear is engaged with sun gear；Adjacent two shafts and planetary reduction gear
Connection type are as follows: the upper end positioned at the shaft of lower end connects shell, and the lower end positioned at the shaft of upper end connects sun gear；
It is fixedly installed spiral helicine bearing shell outside each shaft, the hand of spiral of the bearing shell in adjacent shafts is opposite；
The reduction ratio of the planetary reduction gear is 0.2~0.95.
The working principle of this system is as follows:
By the relatively high revolving speed of the shaft of lower end, efficiently concrete is extracted, makes it into conveyance conduit
It is interior, since the planetary reduction gear in this system is reversed retarder, make the rotation speed of adjacent shafts on the contrary, in adjacent shafts
Bearing shell it is oppositely arranged, be consistent conveying direction, that is, be delivered up, by the deceleration of planetary reduction gear, make closer to upper
The revolving speed of the shaft at end is slower, to eliminate the regurgitant volume that concrete is caused in gap between bearing shell and conveying pipeline inner wall, it is ensured that
It is formed in conveyance conduit without obvious cavity, to make to keep conveying negative pressure in conveyance conduit, improves transfer efficiency.
It is not difficult to find out that in this system, due to the setting of planetary reduction gear, make the direction of rotation of adjacent shafts on the contrary, to
Biggish shearing force is formed in the junction of adjacent shafts, the concrete high-efficiency at the position is mixed, prevents concrete from conveying
It precipitates and is layered in the process.
In this system, cancel conventional helical machine shaft bottom setting retarder structure, and use shafts at different levels it
Between the mode of retarder is respectively set, increase feed pressure, certainly, driving motor is also required to using decelerating motor, still, phase
Than for, it is not necessary that shaft is reduced to too low, so that the shaft of bottom end be made to can result in feed pressure increase, reduce concrete reflux
Amount.
The efficient conveying of longer distance, more high inclination-angle may be implemented by the way of multiple coil in this system, steady
Property, transfer efficiency and latter end discharging concrete quality it is fabulous.
Corresponding reduction ratio can be set according to factors such as concrete viscosity, concrete performance, delivery head, conveying inclination angles
Planetary reduction gear or each planetary reduction gear different reduction ratio is respectively set, make feed pressure, conveying stationarity and conveying effect
Rate is more excellent.
Using planetary reduction gear, transmission stability is preferable, and the concentricity between each shaft is preferable.
In the screw-rod structure in a kind of above-mentioned concrete conveying system, the shaft has three.
In the screw-rod structure in a kind of above-mentioned concrete conveying system, the reduction ratio of the planetary reduction gear is
0.75。
Detailed description of the invention
Fig. 1 is the overall structure diagram of this conveying system.
Fig. 2 is the structural schematic diagram of planetary reduction gear in this conveying system.
In figure, 1, ground storage tank；2, driving motor；3, conveyance conduit；4, shaft；41, bearing shell；5, planetary reduction gear；
51, shell；52, sun gear；53, planetary gear；54, connecting plate；6, universal joint；71, notch；72, supporting cylinder；73, pedestal；
74, link block；75, bellows；8, discharge bucket.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As depicted in figs. 1 and 2, this concrete conveying system includes ground storage tank 1, driving motor 2,3 and of conveyance conduit
At least two shafts 4, shaft 4 are plugged in conveyance conduit 3, are connected between adjacent shafts 4 by a planetary reduction gear 5, are located at
Be connected between the lower end of the shaft 4 of bottom and the output shaft of driving motor 2 by a universal joint 6, positioned at top shaft 4 it is upper
End is connected with the top of conveyance conduit 3 by bearing；
Planetary reduction gear 5 includes shell 51, sun gear 52 and several planetary gears 53, and 51 inner wall of shell has ring gear,
It is engaged between ring gear and each planetary gear 53, each planetary gear 53 is engaged with sun gear 52；Adjacent two shafts 4 and planetary reduction gear
The connection type of device 5 are as follows: the upper end positioned at the shaft 4 of lower end connects shell 51, and the lower end positioned at the shaft 4 of upper end connects the sun
Wheel 52；
It is connected between shell 51 and the inner wall of conveyance conduit 3 by the connecting plate 54 of a hollow out；Connecting plate 54 and shell 51
Between by bearing be connected, connecting plate 54 and the inner wall of conveyance conduit 3 are fixedly linked；
Spiral helicine bearing shell 41, the hand of spiral phase of the bearing shell 41 in adjacent shafts 4 are fixedly installed outside each shaft 4
Instead；
The reduction ratio of planetary reduction gear 5 is 0.2~0.95.
The working principle of this system is as follows:
Ingredient is completed and the concrete that stirs evenly is contained in ground storage tank 1, relatively by the shaft 4 of lower end
High revolving speed, efficiently extracts concrete, makes it into conveyance conduit 3, due to the planetary reduction gear 5 in this system
For reversed retarder, makes the rotation speed of adjacent shafts 4 on the contrary, oppositely arranged to the bearing shell 41 in adjacent shafts 4, make conveying side
It to being consistent, that is, is delivered up, by the deceleration of planetary reduction gear 5, keeps the revolving speed of the shaft 4 closer to upper end slower, from
And eliminate the regurgitant volume that concrete is caused in gap between 3 inner wall of bearing shell 41 and conveyance conduit, it is ensured that without obvious empty in conveyance conduit 3
Chamber is formed, to make to keep conveying negative pressure in conveyance conduit 3, improves transfer efficiency.
It is not difficult to find out that in this system, due to the setting of planetary reduction gear 5, make the direction of rotation of adjacent shafts 4 on the contrary, from
And biggish shearing force is formed in the junction of adjacent shafts 4, the concrete high-efficiency at the position is mixed, prevents concrete defeated
It precipitates and is layered during sending.
In this system, in such a way that connecting plate 54 is set on the shell 51 of planetary reduction gear 5, make each shaft 4 individually
The support force of bearings at both ends support is enjoyed, so that it is guaranteed that the stationarity of stationarity and entire transmission process that shaft 4 rotates, from
And can reduce the gap between bearing shell 41 and conveyance conduit 3, transfer efficiency is improved, it is coaxial because of shaft 4 to be not concerned about bearing shell 41
It spends lower and is worn between the inner wall of conveyance conduit 3.
In this system, cancel conventional helical machine in the structure of 4 bottom of shaft setting retarder, and uses shafts 4 at different levels
Between the mode of retarder is respectively set, increase feed pressure, certainly, driving motor 2 is also required to using decelerating motor, but
It is in comparison, it is not necessary that shaft 4 is reduced to too low, so that the shaft 4 of bottom end be made to can result in feed pressure increase, to reduce mixed
Solidifying soil regurgitant volume.
In this system, connecting plate 54 is Openworks shape, and concrete has carried out effective dispersion when passing through connecting plate 54, is led to
It crosses the mode squeezed out to stir concrete, since this system is by the way of multiple coil, concrete is in transmission process
In, intermittence is stirred, so that concrete effectively be avoided to precipitate and be layered.
The efficient conveying of longer distance, more high inclination-angle may be implemented by the way of multiple coil in this system, steady
Property, transfer efficiency and latter end discharging concrete quality it is fabulous.
Corresponding reduction ratio can be set according to factors such as concrete viscosity, concrete performance, delivery head, conveying inclination angles
Planetary reduction gear 5 or each planetary reduction gear 5 different reduction ratio is respectively set, make feed pressure, conveying stationarity and conveying
Efficiency is more excellent.
Using planetary reduction gear 5, transmission stability is preferable, and the concentricity between each shaft 4 is preferable.
Jagged 71 are opened up on ground storage tank 1, conveyance conduit 3 is plugged in notch 71, conveyance conduit 3 and notch 71
There is gap, the bearing shell 41 in the shaft 4 of lower end is partially disposed in the discharge tank of ground between inner wall；This conveying system also wraps
Include a supporting cylinder 72, the cylinder body lower end of supporting cylinder 72 is fixedly installed a pedestal 73, on the outer tube wall of conveyance conduit 3
Several link blocks 74 are provided with, the top of the push rod of supporting cylinder 72 can be detachable hinged with link block 74；Ground discharging
The bellows 75 that can cover notch 71 is provided between the outer wall of tank and the outer wall of conveyance conduit 3；The end of conveyance conduit 3 is set
It is equipped with the discharge bucket 8 communicated with 3 inner cavity of conveyance conduit.
By the push rod of current hydraulic cylinder in such a way that different link blocks 74 are connected, the inclination angle of cooperation universal joint 6 is driven function
Can, the adjusting at the inclination angle of conveyance conduit 3 may be implemented, adapt it to the requirement of different occasion conveyings.
In the present embodiment, shaft 4 has three；The length of single shaft 4 is 3 meters, and the reduction ratio of each planetary reduction gear 5 is
0.75, for conveying net slurry concrete.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (3)
1. the screw-rod structure in a kind of concrete conveying system, which is characterized in that this screw-rod structure includes at least two shafts (4)
It is set in the conveyance conduit (3) of shaft (4) outside with one, is connected between adjacent shafts (4) by a planetary reduction gear (5)；
The planetary reduction gear (5) includes shell (51), sun gear (52) and several planetary gears (53), and the shell (51) is interior
Wall has ring gear, engages between the ring gear and each planetary gear (53), each planetary gear (53) is engaged with sun gear (52)；
The connection type of adjacent two shafts (4) and planetary reduction gear (5) are as follows: the upper end positioned at the shaft (4) of lower end connects shell
(51), the lower end positioned at the shaft (4) of upper end connects sun gear (52)；
Each shaft (4) is fixedly installed spiral helicine bearing shell (41) outside, the hand of spiral of the bearing shell (41) in adjacent shafts (4)
On the contrary；
The reduction ratio of the planetary reduction gear (5) is 0.2~0.95.
2. the screw-rod structure in a kind of concrete conveying system according to claim 1, which is characterized in that the shaft (4)
There are three.
3. the screw-rod structure in a kind of concrete conveying system according to claim 1 or claim 2, which is characterized in that the planet
The reduction ratio of retarder (5) is 0.75.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821338237.0U CN208616734U (en) | 2018-08-20 | 2018-08-20 | A kind of screw-rod structure in concrete conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821338237.0U CN208616734U (en) | 2018-08-20 | 2018-08-20 | A kind of screw-rod structure in concrete conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208616734U true CN208616734U (en) | 2019-03-19 |
Family
ID=65715908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821338237.0U Expired - Fee Related CN208616734U (en) | 2018-08-20 | 2018-08-20 | A kind of screw-rod structure in concrete conveying system |
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| Country | Link |
|---|---|
| CN (1) | CN208616734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726113A (en) * | 2018-08-20 | 2018-11-02 | 湖北科技学院 | A kind of screw-rod structure in concrete conveying system |
-
2018
- 2018-08-20 CN CN201821338237.0U patent/CN208616734U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726113A (en) * | 2018-08-20 | 2018-11-02 | 湖北科技学院 | A kind of screw-rod structure in concrete conveying system |
| CN108726113B (en) * | 2018-08-20 | 2023-10-03 | 湖北科技学院 | Screw structure in concrete conveying system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 Termination date: 20210820 |