CN112709445A - Concrete spreader - Google Patents
Concrete spreader Download PDFInfo
- Publication number
- CN112709445A CN112709445A CN202011518252.5A CN202011518252A CN112709445A CN 112709445 A CN112709445 A CN 112709445A CN 202011518252 A CN202011518252 A CN 202011518252A CN 112709445 A CN112709445 A CN 112709445A
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- diode
- pipe
- negative pressure
- discharge
- connecting rod
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
- E04G21/0463—Devices for both conveying and distributing with distribution hose with booms with boom control mechanisms, e.g. to automate concrete distribution
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a concrete spreader and a closure method thereof, wherein the spreader comprises a spreader body, a closure device and a control box, the closure device is arranged on the spreader body and is electrically connected with the control box, and the spreader comprises a sealing mechanism and a negative pressure mechanism, the sealing mechanism is arranged at a discharge port of a discharge pipeline of the spreader and controls the opening or closing of the discharge port; the negative pressure mechanism is communicated with the discharge pipeline and arranged on the side wall of the discharge pipeline close to the discharge port. The sealing mechanism is arranged to intercept the concrete excess material in the secondary tube, a negative pressure environment is formed near the discharge port of the diode by the negative pressure mechanism, upward force resisting self gravity is provided for the excess material near the discharge port in the secondary tube, and the excess material is prevented from accumulating at the discharge port and seeping out from a gap between the sealing mechanism and the discharge port of the diode. The negative pressure environment formed by the negative pressure mechanism in the diode can adsorb the sealing disc of the sealing mechanism, so that the sealing disc can tightly press the discharge hole of the diode, and the closure effect of the sealing mechanism is improved.
Description
Technical Field
The invention belongs to the technical field of constructional engineering mechanical equipment, and relates to a concrete spreader.
Background
The concrete spreader is the end equipment for pumping concrete in building construction, and is used for conveying the pumped concrete to a site to be poured through a pipeline.
Traditional concrete spreader when needs stop the cloth, remaining concrete often can flow out the pipeline under the action of gravity in the minor details pipeline, falls to the cloth point, is unfavorable for the accurate control to the place cloth like this, leads to ground, the wall of later stage pouring uneven easily, influences the engineering quality.
In the prior art, a method for well solving the problem of residual concrete in a pipeline and application thereof are not provided.
Disclosure of Invention
In order to solve the technical problems, the invention provides a concrete distributor and a flow stopping method thereof, and solves the technical problem that the traditional concrete distributor cannot control the excess materials in a pipe when the distribution needs to be stopped immediately.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a concrete spreader, the key is: the material distribution machine comprises a material distribution machine body, a cut-off device and a control box, wherein the cut-off device is arranged on the material distribution machine body and is electrically connected with the control box, and the cut-off device comprises a sealing mechanism and a negative pressure mechanism; the negative pressure mechanism is communicated with the discharge pipeline and arranged on the side wall of the discharge pipeline close to the discharge port.
The distributing machine body comprises a steel frame platform, a tower body, a cantilever, a balancing weight, a feeding pipe and a discharging pipe, wherein the discharging pipe comprises a primary pipe and a secondary pipe which are connected with each other, and the joint of the secondary pipe and the primary pipe has a degree of freedom which can rotate relative to the primary pipe;
the body of the tower be fixed in on the steelframe platform, the upper end of body of the tower is fixed with the cantilever, the balancing weight set up in the one end of cantilever, inlet pipe one end and body of the tower fixed connection, the other end pass through the body of the tower with one-level pipe UNICOM, one-level pipe extend to the opposite side that the cantilever set up the balancing weight.
The sealing mechanism comprises a clamping seat, a sealing disc and a connecting rod, the clamping seat is fixed at the end part of the discharge hole of the diode, a through hole with the same diameter as the discharge hole of the diode is arranged on the clamping seat, a clamping groove is arranged on the clamping seat, and the plane of the clamping groove is vertical to the axis of the discharge hole of the diode;
the sealing disc is arranged in the clamping groove, has the freedom degree of sliding relative to the clamping groove, is circular, and has the diameter larger than that of the diode discharge port;
the connecting rod fixed end is hinged to the clamping seat through a fixed block on one side of the clamping seat, the free end of the connecting rod extends to the other side of the clamping seat, a sliding groove is formed in the middle of the connecting rod, a bolt penetrating through the sliding groove is vertically arranged at the center of the sealing plate, and the connecting rod drives the sealing plate to slide relative to the clamping groove in the extending direction through the sliding groove and the bolt.
The sealing mechanism further comprises a telescopic part for controlling the movement of the connecting rod, the telescopic part comprises an installation bottom plate, a telescopic cylinder and an anchor ear, the installation bottom plate is fixed with the lower end of the clamping seat, the telescopic cylinder is arranged on one side of the clamping seat opposite to the fixed block, the fixed end of the telescopic cylinder is fixed with the installation bottom plate, and the telescopic end is hinged with the free end of the connecting rod through the anchor ear;
under the distributing state of the distributing machine, the telescopic cylinder is in an extending state, and under the distributing state of the distributing machine, the telescopic cylinder is in a contracting state.
The negative pressure mechanism comprises a negative pressure fan and a negative pressure air pipe, the negative pressure fan is arranged on the cantilever, one end of the negative pressure air pipe is connected with the negative pressure fan, and the other end of the negative pressure air pipe is fixedly connected with the side wall, close to the discharge port, of the diode and is communicated with the interior of the pipeline of the diode.
The distributing machine is characterized in that a pipe wall vibrating device is further arranged on the distributing machine, the pipe wall vibrating device is electrically connected with the control box and comprises an air pump and a pipe wall vibrator, the air pump is arranged on the steel frame platform and connected with the pipe wall vibrator through a ventilation pipeline, and the pipe wall vibrator is fixed on the side wall of the diode and close to the joint of the side wall of the diode and the negative pressure air pipe.
The method for intercepting the flow of the concrete spreader has the key points that the method specifically comprises the following steps:
the method comprises the following steps: stopping the supply of material
Stopping supplying concrete materials to a feeding pipe of the distributing machine from the outside;
step two: closed diode discharge port
Controlling the telescopic cylinder of the telescopic part to contract to drive the connecting rod to move towards the direction close to the bottom of the clamping seat, wherein when the telescopic cylinder contracts in place, the sealing disc completely covers the discharge hole of the diode; when the telescopic cylinder contracts, a negative pressure fan is started, the negative pressure fan forms a negative pressure environment at a position, close to the discharge port, of the diode through a negative pressure air pipe, so that residual concrete in the pipe is prevented from falling under the action of gravity, and meanwhile, under the influence of the internal and external air pressure environments of the diode, the sealing plate tightly presses the pipe orifice of the diode;
step three: discharging the residue in the diode
When the sealing disc completely seals the discharge port of the diode, the diode is rotated, after the diode is rotated to a specified position, the telescopic cylinder of the telescopic part is controlled to stretch out, the sealing disc is driven to move upwards along the clamping groove of the clamping seat to a position outside the discharge port of the diode through driving the connecting rod to rotate, the negative pressure fan is closed, the pipe wall vibrator is started to vibrate the pipe wall of the diode, and residual concrete materials in the secondary pipe are discharged to the specified position;
step four: waiting for entering the next shut-off period
And after the residual concrete materials in the secondary pipe are discharged, stopping the work of the pipe wall vibrator, keeping the telescopic cylinder at the extending position, and intercepting again according to the sequence of the first step to the third step when the next intercepting period is started.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
according to the invention, the sealing mechanism is arranged to intercept the concrete excess material in the secondary tube, and the negative pressure mechanism is utilized to form a negative pressure environment near the discharge port of the secondary tube, so that an upward force resisting the self gravity is provided for the excess material near the discharge port in the secondary tube, and the excess material is prevented from accumulating at the discharge port and seeping out from a gap between the sealing mechanism and the discharge port of the secondary tube. In addition, the negative pressure environment formed in the diode by the negative pressure mechanism can adsorb the sealing disc of the sealing mechanism to enable the sealing disc to tightly press the discharge hole of the diode, so that the closure effect of the sealing mechanism is improved.
The pipe wall vibrating device can vibrate the secondary pipe when discharging the excess materials in the secondary pipe after intercepting the flow of the secondary pipe, help to separate the concrete adhered to the inner wall of the secondary pipe from the inner wall of the secondary pipe, effectively promote the discharge of the excess materials in the secondary pipe, prevent pipeline blockage, reduce the times of manually cleaning the pipeline and improve the working efficiency of the distributing machine.
In addition, the method for intercepting the discharge pipe of the distributing machine by utilizing the concrete distributing machine can ensure the effectiveness of intercepting and meet the requirement of real-time intercepting, can discharge the residual materials in the discharge pipe to the designated position after the task of intercepting is completed, avoids the blockage of the discharge pipe near the discharge port due to the adhesion of the residual materials to the inner wall of the discharge pipe, has high practicability, needs fewer processes of manual participation in the intercepting process, saves manpower, improves the intercepting effect and improves the automatic control degree of the distributing site.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a front view of the closure of the present invention.
Fig. 3 is a top view of fig. 2 of the present invention.
Wherein: 1. the device comprises a steel frame platform, 2 parts of a tower body, 2-1 parts of a cantilever, 2-2 parts of a balancing weight, 3 parts of a feeding pipe, 4 parts of a primary pipe, 5 parts of a secondary pipe, 7 parts of a sealing mechanism, 7-1 parts of a sealing disc, 7-2 parts of a connecting rod, 7-3 parts of a clamping seat, 7-4 parts of a clamping groove, 7-21 parts of a cushion block, 7-22 parts of a sliding groove, 7-23 parts of a fixing block, 8 parts of a negative pressure fan, 9 parts of a negative pressure air pipe, 10 parts of a pipe wall vibrator, 11 parts of an installation bottom plate, 12 parts of a telescopic cylinder, 13 parts of a hoop, 14 parts of a walking mechanism, 15 parts of.
Detailed Description
For purposes of clarity and a complete description of the present invention, and the like, in conjunction with the detailed description, it is to be understood that the terms "central," "vertical," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The concrete spreader shown in fig. 1-3 has the key points that: the material distribution machine comprises a material distribution machine body, a cut-off device and a control box 16, wherein the cut-off device is arranged on the material distribution machine body and is electrically connected with the control box 16 and comprises a sealing mechanism 7 and a negative pressure mechanism, and the sealing mechanism 7 is arranged at a discharge hole of a discharge pipeline of the material distribution machine and is used for controlling the opening or closing of the discharge hole; the negative pressure mechanism is communicated with the discharge pipeline and arranged on the side wall of the discharge pipeline close to the discharge port. Seal the mechanism through setting up, the discharge gate of shutoff discharging pipe carries out a preliminary interception to the remaining material in the discharging pipe, prevents it tentatively from falling out to external cloth point in the discharging pipe. And then a negative pressure environment is formed in the discharge pipe through the negative pressure mechanism, an upward adsorption force is provided for the material in the discharge pipe to resist gravity, and the falling of the material in the discharge pipe is further prevented. Meanwhile, the arrangement of the negative pressure mechanism can also utilize the air pressure difference inside and outside the discharge pipe to enable the sealing mechanism to further compress the discharge hole of the discharge pipe, so that the plugging capability of the plugging mechanism to the discharge pipe opening is enhanced.
Specifically, the distributing machine body in this embodiment includes a steel frame platform 1, a tower body 2, a cantilever 3, a counterweight 2-2, a feeding pipe 3 and a discharging pipe, the discharging pipe includes a primary pipe 4 and a secondary pipe 5 which are connected with each other, a joint of the secondary pipe 5 and the primary pipe 4 has a degree of freedom which can rotate relative to the primary pipe 4, and when concrete distribution is needed, the distribution can be started by rotating the diode 5 to a specified position. The tower body 2 is fixed on the steel frame platform 1, the upper end of the tower body 2 is fixed with a cantilever 3, the balancing weight 2-2 is arranged at one end of the cantilever 3, one end of the feeding pipe 3 is fixedly connected with the tower body 2, the other end of the feeding pipe is communicated with the first-stage pipe 4 through the tower body 2, and the first-stage pipe 4 extends to the opposite side of the cantilever 3 provided with the balancing weight 2-2.
The sealing mechanism 7 in this embodiment includes a clamping seat 7-3, a sealing disc 7-1 and a connecting rod 7-2 which are arranged in a matching manner. Specifically, the card holder 7-3 is fixed at the end of the discharge port of the diode 5, a through hole with the same diameter as the discharge port of the diode 5 is formed in the card holder 7-3, and a clamping groove 7-4 is formed in the card holder 7-3, so as to conveniently block the discharge port of the diode 5, in this embodiment, the plane where the clamping groove 7-4 is located is perpendicular to the axis of the discharge port of the diode 5;
the sealing disc 7-1 is arranged in the clamping groove 7-4 and has a degree of freedom of sliding relative to the clamping groove 7-4, the sealing disc 7-1 is circular, and the diameter of the sealing disc 7-1 is larger than that of the outlet of the diode 5; in the state of material distribution, the sealing disc 7-1 and the discharge hole of the diode 5 do not interfere with each other, when the discharge hole of the diode 5 needs to be sealed, the sealing disc 7-1 only needs to slide along the clamping groove 7-4 of the clamping seat 7-3 and slide to the discharge hole of the diode 5, and the sealing disc 7-1 is limited to realize sealing.
In order to conveniently slide the sealing disc 7-1 and control the opening or closing of the discharge hole of the diode 5, the sealing mechanism 7 further comprises a connecting rod 7-2. The fixed end of the connecting rod 7-2 is hinged with the clamping seat 7-3 through a fixed block 7-23 at one side of the clamping seat 7-3, the free end of the connecting rod 7-2 extends to the other side of the clamping seat 7-3, the middle part of the connecting rod 7-2 is provided with a sliding chute 7-22 extending to the fixed end of the connecting rod 7-2, a bolt penetrating through the sliding chute 7-22 is vertically arranged at the center of the sealing disk 7-1, one end of the bolt is fixed with the center of the sealing disk 7-1, the other end of the bolt penetrates through the sliding chute 7-22 and then is fixed with a nut with the diameter larger than that of the sliding chute 7-22, in order to facilitate assembly and also to provide a better press-fit of the sealing disk 7-1, a spacer 7-21 is also provided in this embodiment between the sealing disk 7-1 and the connecting rod 7-2. When the opening or closing of the outlet of the diode 5 needs to be controlled, the sealing plate 7-1 is driven by the connecting rod 7-2 through the sliding groove 7-22 and the bolt to slide upwards or downwards along the extending direction of the clamping groove 7-4.
Further, in order to automatically control the movement of the connecting rod 7-2 and reduce the manual involvement, the sealing mechanism 7 in this embodiment further includes a telescopic portion for controlling the movement of the connecting rod 7-2, the telescopic portion includes an installation bottom plate 11, a telescopic cylinder 12 and an anchor ear 13, the installation bottom plate 11 is fixed to the lower end of the clamping seat 7-3, the telescopic cylinder 12 is disposed on the side of the clamping seat 7-3 opposite to the fixed block 7-23, the fixed end of the telescopic cylinder 12 is fixed to the installation bottom plate 11, and the telescopic end is hinged to the free end of the connecting rod 7-2 through the anchor ear 13;
in the distributing state of the distributing machine, the telescopic cylinder 12 is in an extending state, the sealing disc 7-1 is lifted along the extending direction of the clamping groove 7-4 under the driving of the connecting rod 7-2, and at the moment, the sealing disc 7-1 and the discharge hole of the diode 5 are not interfered with each other; when the distributing machine stops distributing, the telescopic cylinder 12 is in a contraction state, the sealing disc 7-1 is driven by the connecting rod 7-2 to be downward along the extending direction of the clamping groove 7-4, at the moment, the sealing disc 7-1 blocks the discharge hole of the diode 5, and concrete materials in the pipe cannot flow out of the diode 5.
The negative pressure mechanism is arranged in various modes, specifically, in the embodiment, the negative pressure mechanism comprises a negative pressure fan 8 and a negative pressure air pipe 9, the negative pressure fan 8 is arranged on the cantilever 3, one end of the negative pressure air pipe 9 is connected with the negative pressure fan 8, and the other end of the negative pressure air pipe is fixedly connected with the side wall, close to the discharge hole, of the diode 5 and is communicated with the interior of the pipeline of the diode 5. When the material cutting is needed, the negative pressure fan 8 is controlled to be started, the negative pressure fan 8 forms a negative pressure environment in the diode 5 through the negative pressure air pipe 9, and concrete materials in the pipe are prevented from falling or pressing the sealing plate 7-1 under the influence of gravity. In addition, under the action of the negative pressure mechanism, air pressure difference exists between the inside and the outside of the diode 5, and the sealing disc 7-1 further compresses the discharge hole of the diode 5 under the action of the air pressure difference, so that the intercepting effectiveness is improved.
Further, in order to clean the inner wall of the secondary tube 5 after the cutoff of the discharge tube and avoid the blockage of the inner wall, in this embodiment, a tube wall vibrating device is further arranged on the distributing machine, the tube wall vibrating device is electrically connected with the control box 16 and comprises an air pump and a tube wall vibrator 10, the air pump is arranged on the steel frame platform 1 and connected with the tube wall vibrator 10 through an air pipeline, and the tube wall vibrator 10 is fixed on the side wall of the secondary tube 5 and close to the joint of the side wall of the secondary tube 5 and the negative pressure air pipe 9. When the diode 5 needs to be cleaned, the concrete in the pipe wall of the discharge pipe 5 can be promoted to fall off from the pipe wall of the discharge pipe 5 by using the vibration of the pipe wall vibrator 10 only by opening the sealing mechanism 7 through the pipe wall negative pressure mechanism and starting the pipe wall vibrator 10.
A plurality of tube wall vibrators 10 can be arranged at different positions of the secondary tube 5 to improve the cleaning effect, and in the embodiment, the number of the tube wall vibrators 10 is one and is arranged between the interface of the negative pressure air pipe 9 and the secondary tube 5 and the sealing mechanism 7.
In addition, the embodiment also provides a method for intercepting the flow of the concrete spreader, and the key point is that the method specifically comprises the following steps:
the method comprises the following steps: stopping the supply of material
Stopping supplying concrete materials to the feeding pipe 3 of the distributing machine from the outside;
step two: closed diode 5 discharge port
Controlling the telescopic cylinder 12 of the telescopic part to contract to drive the connecting rod 7-2 to move towards the direction close to the bottom of the clamping seat 7-3, wherein when the telescopic cylinder 12 contracts to the right position, the sealing disc 7-1 completely covers the discharge hole of the diode 5; when the telescopic cylinder 12 contracts, the negative pressure fan 8 is started, a negative pressure environment is formed by the negative pressure fan 8 at a position close to the discharge port of the diode 5 through the negative pressure air pipe 9, so that residual concrete in the pipe is prevented from falling under the action of gravity, and meanwhile, under the influence of the internal and external air pressure environments of the diode 5, the sealing disc 7-1 compresses the pipe orifice of the diode 5;
step three: discharge the residual material in the diode 5
When the sealing disc 7-1 completely seals the discharge port of the diode 5, rotating the diode 5, after rotating the diode 5 to a designated position, controlling the telescopic cylinder 12 of the telescopic part to extend out, driving the sealing disc 7-1 to move upwards to a position beyond the discharge port of the diode 5 along the clamping groove 7-4 of the clamping seat 7-3 by driving the connecting rod 7-2 to rotate, closing the negative pressure fan 8, starting the pipe wall vibrator 10 to vibrate the pipe wall of the diode 5, and discharging residual concrete materials in the diode 5 to the designated position;
step four: waiting for entering the next shut-off period
After the residual concrete materials in the secondary pipe 5 are discharged, the pipe wall vibrator 10 stops working, the telescopic cylinder 12 keeps the extending position, and the interception is carried out again according to the sequence of the first step to the third step when the next interception period is started.
In addition, in order to move the material distributing machine conveniently, in this embodiment, a traveling mechanism 14 is further arranged at the bottom end of the steel frame platform 1, a traveling driving mechanism 15 is arranged on the steel frame platform, the traveling driving mechanism 15 is in transmission connection with the traveling mechanism 14, and the traveling driving mechanism 14 is driven or stopped to be driven, so that the material distributing machine is moved or fixed, and the material distributing position is further adjusted conveniently.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a concrete spreader which characterized in that: the material distribution machine comprises a material distribution machine body, a cut-off device and a control box (16), wherein the cut-off device is arranged on the material distribution machine body and is electrically connected with the control box (16), and the cut-off device comprises a sealing mechanism (7) and a negative pressure mechanism, wherein the sealing mechanism (7) is arranged at a discharge hole of a discharge pipeline of the material distribution machine and is used for controlling the opening or closing of the discharge hole; the negative pressure mechanism is communicated with the discharge pipeline and arranged on the side wall of the discharge pipeline close to the discharge port.
2. A concrete spreader as claimed in claim 1, wherein: the distributing machine body comprises a steel frame platform (1), a tower body (2), a cantilever (3), a balancing weight (2-2), a feeding pipe (3) and a discharging pipe, wherein the discharging pipe comprises a primary pipe (4) and a secondary pipe (5) which are connected with each other, and the joint of the secondary pipe (5) and the primary pipe (4) has a degree of freedom which can rotate relative to the primary pipe (4);
the tower body (2) be fixed in on steelframe platform (1), the upper end of tower body (2) is fixed with cantilever (3), balancing weight (2-2) set up in the one end of cantilever (3), inlet pipe (3) one end and tower body (2) fixed connection, the other end pass through tower body (2) with first grade pipe (4) UNICOM, first grade pipe (4) extend to cantilever (3) and set up the opposite side of balancing weight (2-2).
3. A concrete spreader as claimed in claim 2, wherein: the sealing mechanism (7) comprises a clamping seat (7-3), a sealing disc (7-1) and a connecting rod (7-2), the clamping seat (7-3) is fixed at the end part of the discharge hole of the diode (5), a through hole with the same diameter as the discharge hole of the diode (5) is formed in the clamping seat (7-3), a clamping groove (7-4) is formed in the clamping seat (7-3), and the plane where the clamping groove (7-4) is located is vertical to the axis of the discharge hole of the diode (5);
the sealing disc (7-1) is arranged in the clamping groove (7-4) and has a degree of freedom of sliding relative to the clamping groove (7-4), the sealing disc (7-1) is circular, and the diameter of the sealing disc is larger than that of the outlet of the diode (5);
the fixed end of the connecting rod (7-2) is hinged to the clamping seat (7-3) through a fixed block (7-23) on one side of the clamping seat (7-3), the free end of the connecting rod (7-2) extends to the other side of the clamping seat (7-3), a sliding groove (7-22) is formed in the middle of the connecting rod (7-2), a bolt penetrating through the sliding groove (7-22) is vertically arranged at the center of the sealing disc (7-1), and the connecting rod (7-2) and the bolt drive the sealing disc (7-1) to relatively slide along the extending direction of the clamping groove (7-4) through the sliding groove (7-22).
4. A concrete spreader as claimed in claim 3, wherein: the sealing mechanism (7) further comprises a telescopic part for controlling the movement of the connecting rod (7-2), the telescopic part comprises an installation bottom plate (11), a telescopic cylinder (12) and an anchor ear (13), the installation bottom plate (11) is fixed with the lower end of the clamping seat (7-3), the telescopic cylinder (12) is arranged on one side of the clamping seat (7-3) opposite to the fixed block (7-23), the fixed end of the telescopic cylinder (12) is fixed with the installation bottom plate (11), and the telescopic end is hinged with the free end of the connecting rod (7-2) through the anchor ear (13);
under the distributing state of the distributing machine, the telescopic cylinder (12) is in an extending state, and under the distributing state of the distributing machine, the telescopic cylinder (12) is in a contracting state.
5. A concrete spreader as claimed in claim 2, wherein: negative pressure machine construct including negative-pressure air fan (8) and negative-pressure air pipe (9), negative-pressure air fan (8) set up in on cantilever (3), negative-pressure air pipe (9) one end with negative-pressure air fan (8) connect, the other end with diode (5) are close to the lateral wall of discharge gate fixed, with the inside UNICOM of pipeline of diode (5).
6. A concrete spreader as claimed in claim 5, wherein: the cloth machine on still be provided with pipe wall vibrating device, pipe wall vibrating device with control box (16) electricity be connected, include air pump and pipe wall vibrator (10), the air pump set up in on steelframe platform (1), through vent line with pipe wall vibrator (10) connect, pipe wall vibrator (10) be fixed in on the lateral wall of diode (5), be close to diode (5) lateral wall with the junction of negative-pressure air pipe (9).
7. The interception method of the concrete spreader is characterized by comprising the following steps:
the method comprises the following steps: stopping the supply of material
Stopping supplying concrete materials to a feeding pipe (3) of the distributing machine from the outside;
step two: the discharge hole of the closed diode (5)
Controlling a telescopic cylinder (12) of the telescopic part to contract to drive a connecting rod (7-2) to move towards the direction close to the bottom of the clamping seat (7-3), and completely covering the discharge hole of the diode (5) by a sealing plate (7-1) when the telescopic cylinder (12) contracts in place; when the telescopic cylinder (12) contracts, the negative pressure fan (8) is started, a negative pressure environment is formed by the negative pressure fan (8) at a position, close to the discharge port, of the diode (5) through a negative pressure air pipe (9), the residual concrete in the pipe is prevented from falling under the action of gravity, and meanwhile, under the influence of the internal and external air pressure environments of the diode (5), the sealing disc (7-1) compresses the pipe orifice of the diode (5);
step three: discharging the residual material in the secondary tube (5)
After the sealing disc (7-1) completely seals the discharge hole of the diode (5), rotating the diode (5), controlling a telescopic cylinder (12) of a telescopic part to extend out after the diode (5) is rotated to a specified position, driving the sealing disc (7-1) to move up to a position beyond the discharge hole of the diode (5) along a clamping groove (7-4) of the clamping seat (7-3) by driving a connecting rod (7-2) to rotate, closing a negative pressure fan (8), starting a pipe wall vibrator (10) to vibrate the pipe wall of the diode (5), and discharging residual concrete materials in the diode (5) to the specified position;
step four: waiting for entering the next shut-off period
After the residual concrete materials in the secondary tube (5) are discharged, the tube wall vibrator (10) stops working, the telescopic cylinder (12) keeps the extending position, and the flow is stopped again according to the sequence of the first step to the third step when the next flow stopping period is started.
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| CN109397525A (en) * | 2018-12-19 | 2019-03-01 | 兰州北迅网络科技有限公司 | A kind of concrete spreader being moved easily |
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| CN210141002U (en) * | 2019-03-15 | 2020-03-13 | 南京嘉翼数字化增材技术研究院有限公司 | Concrete distributor hopper head with remote control opening and closing mechanism |
| CN211685705U (en) * | 2019-12-20 | 2020-10-16 | 杭州加一包装技术有限责任公司 | Material stop device and packagine machine |
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| JPH0734787A (en) * | 1993-07-21 | 1995-02-03 | Sato Kogyo Co Ltd | Manufacture of rc segment |
| US20020015618A1 (en) * | 2000-07-31 | 2002-02-07 | Quenzi Philip J. | Concrete placing machine with hydraulic and concrete swivel |
| CN107498711A (en) * | 2017-09-29 | 2017-12-22 | 长沙久鑫机械科技有限公司 | A kind of middle-size and small-size concrete suitable for villages and small towns stirs transportation integration belt feeder |
| CN109397525A (en) * | 2018-12-19 | 2019-03-01 | 兰州北迅网络科技有限公司 | A kind of concrete spreader being moved easily |
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