CN114715245A

CN114715245A - Unloading device of concrete pouring small-sized transport vehicle

Info

Publication number: CN114715245A
Application number: CN202210469054.7A
Authority: CN
Inventors: 薛玉锋; 姜宝仁; 居建福
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-08

Abstract

The invention discloses a discharging device of a concrete pouring small-sized transport vehicle, which comprises: the bottom plate is used for forming the bottom of a hopper of the transport vehicle; the rear push plate is vertically arranged and is fixedly connected with the bottom plate at the back, and can be driven to slide forwards to push concrete in the car hopper out of the car hopper or slide backwards to return; the invention is used for a transport vehicle, adopts a structure for pushing concrete out by driving, does not need manual operation during unloading, saves labor during unloading, can be unloaded at one time, saves time and labor, and simultaneously avoids the personal danger caused by the existing inertia, thereby reducing the construction cost, shortening the construction time occupied by material transportation as much as possible and improving the construction efficiency.

Description

Unloading device of concrete pouring small-sized transport vehicle

Technical Field

The invention relates to construction auxiliary equipment, in particular to a discharging device of a concrete pouring small-sized transport vehicle.

Background

Concrete pouring is an essential link during building construction, and because the construction environment is complex and diverse, large-scale transportation pouring machinery is uneconomical to use or can not reach in the concrete pouring construction of local small range or small area, thereby the pouring construction can not be completed. In the prior art, the manual trolley is used for completing the concrete pouring in the small-range small area

For the pouring of local concrete, a handcart is needed to be pushed manually to convey the concrete to a specified place to complete the pouring. During the use, in order to make the concrete material in the shallow all lift off after the manual work pushes away the handcart to appointed place, constructor uses the instrument to push the concrete material of vehicle bottom to the discharge gate usually, perhaps with shallow thrust small handcart utilization inertia make the small handcart tumble, lift off the concrete, nevertheless because the self characteristic of concrete still can not lift off the concrete completely, need supplementary other instrument (spade) clean up.

Therefore, the manual cart has the problem of labor waste in unloading, the unloading mode needs to utilize the inertia of the cart to have large personal danger, the transportation efficiency is greatly reduced in the later-stage cleaning, the construction cost is wasted, and the construction period is prolonged.

Therefore, the existing concrete transportation mode suitable for small-range and local concrete pouring needs to be unloaded in a labor-saving manner and emptied at one time, so that the personal danger caused by the existing inertia utilization is avoided while time and labor are saved, the construction cost is reduced, the construction time occupied by material transportation is shortened as much as possible, and the construction efficiency is improved.

Disclosure of Invention

In view of the above, the present invention provides a discharging device for a small concrete pouring truck, which is capable of saving labor for discharging, emptying at one time, saving time and labor, and avoiding the human body danger caused by inertia in the prior art, thereby reducing the construction cost, shortening the construction time occupied by material transportation as much as possible, and improving the construction efficiency.

The invention relates to a discharging device of a concrete pouring small-sized transport vehicle, which comprises:

the bottom plate is used for forming the bottom of a hopper of the transport vehicle;

and the rear push plate is vertically arranged and is fixedly connected with the bottom plate by leaning against the rear, and can be driven to slide forwards to push concrete in the car hopper out of the car hopper or slide backwards to return.

Further, the device also comprises a driving system, wherein the driving system comprises a driving power source and a driving box;

the driving box comprises a box body and a driving assembly, wherein the driving assembly is arranged on the box body and is provided with a reciprocating power output end which can be driven by a driving power source to slide back and forth in a reciprocating manner;

the reciprocating power output end and the rear push plate are fixedly connected to form a driving structure capable of sliding back and forth.

Furthermore, the bottom plate comprises a plurality of bottom plate units which are hinged from front to back in sequence.

Further, the driving assembly comprises a lead screw and a nut, the lead screw is arranged on the box body in a rotating fit mode, the nut is in driving fit with the lead screw, the reciprocating power output end is fixed on the nut and extends out of the box body, and a long and narrow box body groove for the reciprocating power output end to slide back and forth is formed in the box body.

Furthermore, the long and narrow box body groove is provided with a sealing device, the sealing device comprises a sealing belt and pulleys, at least four pulleys are respectively vertically and correspondingly arranged at four corners in the box body, and the sealing belt sequentially bypasses the pulleys and covers the long and narrow box body groove; the reciprocating power output end passes through the sealing belt in a tight fit manner and drives the sealing belt to slide back and forth around the pulley when sliding back and forth.

Further, the driving power source is a driving motor, the driving motor is arranged on the frame of the transport vehicle, and respectively transmits power to the two lead screws through the transmission assembly and drives the lead screws to rotate in a reciprocating mode.

Further, a long and narrow sealing sliding groove is formed in the inner side of the long and narrow box body groove and is used for being matched with the sealing belt and restraining the sealing belt to slide in the sealing belt.

Further, the long and narrow sealing chute is formed by vertical chute plates which are respectively arranged above and below the sealing belt; the upper side and the lower side of the long and narrow box body groove are respectively provided with a dust-blocking brush; and a baffle is fixedly arranged on the outer side of the box body positioned on the upper side of the long and narrow box body groove and is arranged along the length direction.

Further, the long and narrow box body groove is positioned on the upper side of the nut; and the nut is in single-degree-of-freedom reciprocating sliding fit with the box body.

The rear end of the support rod is hinged to the corresponding reciprocating power output end, and the front end of the support rod is used for driving the hopper to be opened for discharging or closing the hopper for charging when the reciprocating power output end moves back and forth.

The invention has the beneficial effects that: the unloading device of the concrete pouring small-sized transport vehicle is used for the concrete transport vehicle, adopts a structure for pushing concrete out by driving, does not need manual operation during unloading, saves labor for unloading, unloads the concrete in one step, saves time and labor, and avoids the personal danger caused by the existing inertia, thereby reducing the construction cost, shortening the construction time occupied by material transportation as much as possible and improving the construction efficiency.

Drawings

The invention is further described below with reference to the figures and examples.

FIG. 1 is a schematic plan view of the discharge device of the present invention mounted to a frame of a transportation vehicle;

FIG. 2 is a side view of the transport vehicle;

FIG. 3 is a longitudinal cross-sectional view of the transport vehicle;

FIG. 4 is a schematic view of a discharge process;

FIG. 5 is a schematic view of the structure of the driving box;

FIG. 6 is an enlarged view of FIG. 5 at B;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 8 is a schematic view of the sealing band engaging a pulley;

fig. 9 is a schematic view of the stay bar and the front side plate being engaged.

Detailed Description

As shown in fig. 1-9: the embodiment mainly explains the invention used for a transport vehicle; the discharge apparatus of concrete placement small-size transport vechicle of this embodiment includes:

a floor 401 for forming a bottom of a hopper of a transport vehicle;

and the rear push plate 402 is vertically arranged and is fixedly connected with the bottom plate to form a push-out mechanism 4, and can be driven to slide forwards to push concrete in the car hopper out of the car hopper or slide backwards to return.

The discharge device of the invention is used for a transport vehicle, and the transport vehicle comprises:

a frame 1 forming a main body support frame of a transport vehicle;

the enclosing plate assembly 5 and the bottom plate 401 enclose a car hopper for filling concrete to be poured;

the front side of the coaming assembly 5 can be opened or closed;

as shown in the figure, the transport vehicle can be pushed by manpower, and can also be driven by power, which is not described again;

the hopper is used for loading concrete materials, the rear push plate is positioned at the end of loading and becomes a part of the hopper, the concrete enters the hopper, the rear push plate is driven to move forwards and drives the bottom plate to move forwards during unloading, and the front side of the enclosing plate assembly is opened, so that the materials are completely withdrawn and unloaded; the front side of bounding wall subassembly can be opened or close and can adopt directly to open preceding bounding wall, also can be equipped with special valve (plate gate valve) discharge opening that passes through, extrudes the material, and simultaneously, the bounding wall subassembly front side should be equipped with the logical groove that supplies the bottom plate business turn over, and no longer the repeated description here.

In this embodiment, the device further comprises a driving system, wherein the driving system is used for driving the rear push plate 402 or/and the bottom plate 401 to move forwards for discharging or move backwards for returning; the driving system can be an electric driving structure, a hydraulic driving structure and the like which can realize linear motion output, and the details are not repeated herein; the coaming assembly 5 includes a front coaming 503 that can be opened for discharge or closed; the whole unloading of the material pushed by the push plate after the whole opening of the front wall is finished is not repeated herein; the opening mode can be that the openable structure is formed by hinging the side surface or the upper part, which is not described in detail here.

In this embodiment, the bottom plate 401 is formed by sequentially hinging a plurality of bottom plate units from front to back; the bottom plate units are sequentially hinged from front to back, when the bottom plate units are arranged on the frame, the frame supports the whole vehicle plate, when the back push plate slides forwards, the bottom plate slides forwards (in the direction shown by an arrow in the figure), the hinged bottom plate units sequentially slide out of the front cross beam of the frame and rotate downwards under the action of gravity, materials are directly discharged, and after the materials are completely pushed out, the back push plate is driven backwards to pull each bottom plate unit onto the frame to form a stable whole body capable of carrying the materials.

The upper end of the front wall plate 503 is hinged to the frame to form a structure which can swing back and forth and can be locked; the upper end of the front wall plate 503 is hinged to form a structure which can be opened and closed and is suitable for the mode that concrete flows out from the bottom; meanwhile, when the materials are recharged, the materials can be made to be a part of the hopper through locking, and the locking mode can adopt various structures, such as a pin pulling mode, and the details are not repeated.

In this embodiment, the frame includes two side rails 101, a front cross member 103, and a rear cross member 102; as shown in the figure, the two side longitudinal beams 101, the front cross beam 103 and the rear cross beam 102 form a rectangular frame structure together, and the cross beam or the longitudinal beam 104 is further arranged in the middle as required to obtain better supporting strength, which is not described herein again

The driving system comprises a driving power source and driving boxes 2 which are respectively arranged on the two side longitudinal beams 101;

the drive case 2 includes:

the box body 201 is fixed on the corresponding side longitudinal beam in a detachable bolt connection mode, so that maintenance is facilitated;

a driving component which is arranged on the box body 201 and is provided with a reciprocating power output end 202 which can be driven by the driving power source 3 to slide back and forth in a reciprocating way; the hydraulic drive and the screw nut pair can achieve the purpose;

the reciprocating power output end 202 is fixedly connected with the rear push plate 402 to form a driving structure capable of sliding back and forth; the fixing mode can also adopt detachable bolt connection, and can also be integrally formed, and the details are not described herein.

In this embodiment, the driving assembly includes a screw 204 rotatably fitted to the box 201 and a nut 203 drivingly fitted to the screw, the reciprocating power output end 202 is fixed to the nut 203 and extends out of the box, and the box 201 is provided with a long and narrow box groove 2011 for allowing the reciprocating power output end to slide back and forth; the screw 204 is rotatably matched with the box 201, two ends of the screw are supported in the box 201 through bearings as shown in the figure, one end of the screw extends out of the box to be driven to rotate, and the extending part needs to be provided with a sealing structure to prevent impurities from entering and affecting lubrication; because a screw nut structure is adopted, the box body is also in a strip shape, enough installation lubricating space of the nut is reserved, and the like, and the details are not repeated; the reciprocating power output end is structurally characterized in that a connecting nut is fixedly connected to extend out of the box body, and no special shape requirement exists;

the nut 203 is in reciprocating sliding fit with the box body 201 with a single degree of freedom, as shown in the figure, the reciprocating sliding fit with the single degree of freedom is formed by matching a bulge arranged at the bottom of the nut with a sliding groove arranged at the bottom of the box body, and the details are not repeated;

the long and narrow box body groove 2011 is provided with a sealing device, the sealing device comprises a sealing belt 206 and pulleys, at least four pulleys are respectively vertically and correspondingly arranged at four corners in the box body, and the sealing belt 206 sequentially bypasses the pulleys and covers the long and narrow box body groove to ensure sealing; the reciprocating power output end penetrates through the sealing belt in a tight fit manner and drives the sealing belt to slide in a reciprocating manner around the pulley when sliding back and forth, the tight fit manner is various, as shown in the figure, a metal ring tight sleeve structure is adopted, and the excircle of the metal ring is fixedly connected with the sealing belt in a sealing manner, so that a better sealing effect is achieved, of course, the metal ring is not necessarily circular in shape in order to adapt to the shape of the reciprocating power output end, and can be a square ring, a rectangular ring and the like, and the details are not repeated; in the structure, pulleys arranged at four corners rotate to ensure that the sealing belt smoothly slides back and forth along with the reciprocating power output end, the structure of the pulley comprises a pulley body 205 and a vertical shaft 2051, the pulley body 205 is arranged on the vertical shaft in a rotating fit manner, annular bosses (which can be detachable) for axially limiting the pulley body are respectively arranged on the vertical shaft 2051 and correspond to two ends of the pulley body 205 so as to ensure that the pulley does not axially deviate, the pulley body is cylindrical, the axial length of the pulley body is matched with the upper and lower widths of the sealing belt, and the annular bosses at two ends simultaneously limit the sealing belt, which is not described herein;

the driving power source 3 is a driving motor 301, outputs power through a chain wheel or a toothed belt wheel 302, and the driving motor 301 is arranged on the frame and transmits power to the two lead screws 204 through a transmission assembly 8 and drives the lead screws to rotate in a reciprocating manner; as shown in the figure, the driving motor 301 is fixed at the bottom of the frame (fixed on the middle longitudinal beam), the power output shaft extends backwards and transmits power to the transmission assembly 8 through the chain wheel or the toothed belt wheel 302 (the transmission assembly is generally chain transmission or toothed belt transmission as shown in the figure, so as to avoid slipping), of course, the screw rod also needs to be provided with the chain wheel or the toothed belt wheel, which is not described herein again; of course, the driving battery is required to be arranged at a proper position at the bottom of the frame, and the description is omitted.

In this embodiment, a long and narrow sealing sliding groove is arranged on the inner side of the long and narrow box body groove 2011, and the long and narrow sealing sliding groove is used for matching with the sealing band 206 and restraining the sealing band from sliding inwards;

the long and narrow sealing chute is composed of vertical chute plates 207 which are respectively arranged above and below the sealing belt 206;

as shown in the figure, a vertical sliding plate 207 is fixedly arranged on the top plate of the box 201, another vertical sliding plate 207 is fixedly arranged on the bottom plate of the box (because the two are oppositely arranged to form a sliding chute, the same reference numeral is used for explanation), a long and narrow sealing sliding chute is formed between the two vertical sliding plates 207 and the inner side surface of the box 201, and a gap between the two vertical sliding plates 207 is used for passing through a reciprocating power output end; through the restraint of sealed spout for the sealing strip can hug closely the box inner surface and form effective seal to long and narrow box groove, blocks that external impurity gets into in the box. So as to ensure that the kinematic pair in the box body forms effective lubrication;

dust-blocking brushes 209 are respectively arranged at the upper side and the lower side of the long and narrow box body groove 201 to further prevent impurities from entering, and are not described again;

a baffle plate 208 is fixedly arranged on the outer side of the box body positioned on the upper side of the long and narrow box body groove 201 and is arranged along the length direction; as shown in the figure, the fixed baffle is in an arc shape bent downwards, and the lower end part of the fixed baffle is close to the upper part of the reciprocating power output end, so that larger impurities are prevented from falling from the upper part and entering the box body.

In this embodiment, the long and narrow box body groove 201 is located on the upper side of the nut 203; grease for lubricating the lead screw nut in the box body can be ensured not to flow out, so that a good lubricating effect is kept.

In this embodiment, the side longitudinal beam 101 is provided with a guide sliding groove 1011 along the length direction, and the reciprocating power output end 202 is provided with a sliding block 2021 matched with the guide sliding groove; as shown in the figure, the guide sliding groove 1011 is a rectangular groove, and the sliding block 2021 is a rectangular block, so that the guide is formed, the clamping is avoided, and a better linear motion path is formed;

the guide sliding chute 1011 is communicated front and back or is in smooth transition upwards from the front end wall and the back end wall, and the front and back communication can ensure that sundries are not accumulated in the guide sliding chute to block the sliding block from advancing; of course, the adoption of the arc-shaped structure with smooth transition also facilitates the extrusion of the internal impurities, and the details are not repeated herein.

In this embodiment, the frame further includes a front upper cross beam 106, the front upper cross beam 106 is supported by two corresponding upright beams 105 at two ends, and the upper end of the front side plate 503 is hinged to the front upper cross beam 106; the front upper cross beam 106 and the two vertical beams 105 form a portal frame structure which can stably support a front side plate;

the two support rods 6 are hinged to the corresponding reciprocating power output ends 202 at the rear ends of the two support rods 6, the front ends of the two support rods 6 are correspondingly hinged to the left side and the right side of the front side plate 503 respectively, and the hinged rotation freedom degrees are in the up-and-down direction; as shown in the figure, when the reciprocating power output end 202 moves forwards and backwards, the support rod 6 is driven to move forwards and backwards, so that the front side plate is driven to be opened or closed, the more the front side plate is opened, the larger the front side plate is opened, the unloading is facilitated, and meanwhile, the automatic opening, unloading and automatic closing and locking are realized;

when the rear push plate is close to the rear, the reciprocating power output end is pulled by the support rod and locks the front side plate, and when the rear push plate is driven to discharge forwards, the reciprocating power output end supports the front side plate by the support rod and discharges materials;

in this embodiment, the coaming assembly 5 further includes two side coamings 501 and a back coaming 502, where the two side coamings 501 are respectively provided with a coamings slot 5011 through which the reciprocating power output end passes and slides back and forth, and at the same time, the front and back of the two side coamings 501 are respectively fixedly connected (generally welded) with one side of the corresponding upright beam 105 and one side of the back coamings 502; the rear enclosing plate 502 is vertically arranged, and a supporting rib 5021 for reinforcing is arranged between the rear side and the rear cross beam, so that the rear enclosing plate can effectively support a rear push plate during loading, and the supporting rib is used for ensuring the overall supporting strength; the reciprocating power output end and the stay bar are both positioned at the outer side of the corresponding side wall plate 501, so that the influence of internal materials is avoided;

the carrier vehicle frame is of an inclined structure with a low front part and a high rear part after wheels 7 are installed, and the rear side plate 502 is vertically arranged; the frame is of an inclined structure due to the difference of the size or the supporting height of the wheels, so that the rear push plate is pushed forwards conveniently during unloading, and meanwhile, the force component of the gravity of the material is utilized to enable the material to have the downward sliding tendency, so that the unloading is convenient;

the front side of back push pedal 402 is for upwards inclining backward the state, and when preceding curb plate 503 was locked, for upwards forward tilt state, overall structure is the bucket shape, conveniently feeds.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a discharge apparatus of concrete placement small-size transport vechicle which characterized in that: the method comprises the following steps:

2. The unloading device of concrete pouring small-sized transport vehicle according to claim 1, characterized in that: the driving system comprises a driving power source and a driving box;

3. The unloading device of a concrete pouring small-sized transport vehicle according to claim 2, characterized in that: the bottom plate comprises a plurality of bottom plate units which are hinged from front to back in sequence.

4. The unloading device of concrete pouring small-sized transport vehicle according to claim 2, characterized in that:

the driving assembly comprises a lead screw and a nut, the lead screw is arranged on the box body in a rotating fit mode, the nut is in driving fit with the lead screw, the reciprocating power output end is fixed on the nut and extends out of the box body, and a long and narrow box body groove for the reciprocating power output end to slide back and forth is formed in the box body.

5. The unloading device of a concrete pouring small-sized transport vehicle according to claim 3, wherein: the long and narrow box body groove is provided with a sealing device, the sealing device comprises a sealing belt and pulleys, at least four pulleys are respectively vertically and correspondingly arranged at four corners in the box body, and the sealing belt sequentially bypasses the pulleys and covers the long and narrow box body groove; the reciprocating power output end passes through the sealing belt in a tight fit manner and drives the sealing belt to slide back and forth around the pulley when sliding back and forth.

6. The unloading device of concrete pouring small-sized transport vehicle according to claim 5, characterized in that: the driving power source is a driving motor, the driving motor is arranged on the frame of the transport vehicle, and respectively transmits power to the two lead screws through the transmission assembly and drives the lead screws to rotate in a reciprocating mode.

7. The unloading device of concrete pouring small-sized transport vehicle according to claim 5, characterized in that: and a long and narrow sealing sliding groove is arranged on the inner side of the long and narrow box body groove and is used for being matched with the sealing belt and restraining the sealing belt to slide in the long and narrow box body groove.

8. The unloading device of concrete pouring small-sized transport vehicle according to claim 4, characterized in that: the long and narrow sealing sliding groove is formed by vertical sliding groove plates which are respectively arranged on the upper part and the lower part of the sealing belt; the upper side and the lower side of the long and narrow box body groove are respectively provided with a dust-blocking brush; and a baffle is fixedly arranged on the outer side of the box body positioned on the upper side of the long and narrow box body groove and is arranged along the length direction.

9. The unloading device of a concrete pouring small-sized carrier vehicle according to claim 7, wherein: the long and narrow box body groove is positioned on the upper side of the nut; and the nut is in single-degree-of-freedom reciprocating sliding fit with the box body.

10. The unloading device of concrete pouring small-sized transport vehicle according to claim 9, characterized in that: the rear end of the support rod is hinged to the corresponding reciprocating power output end, and the front end of the support rod is used for driving the hopper to be opened for discharging or closing the hopper for charging when the reciprocating power output end moves back and forth.