Double-open type stock bin discharging door device and concrete mixing equipment

Abstract

The utility model discloses a double-open type stock bin discharging door device and concrete mixing equipment, the double-open type stock bin discharging door device comprises a box body, two discharging door plates and a driving mechanism, the top of the box body is provided with a feeding port, the two discharging door plates are respectively arranged on two opposite sides of the feeding port and are respectively hinged with the box body, and the driving mechanism is connected with the discharging door plates. The driving mechanism is used for driving the discharging door plate to rotate to be opened or closed so as to open or close the feeding port, and a material blocking eave which surrounds the feeding port and is used for blocking the edge position of the discharging door plate is arranged at the position, above the discharging door plate, of the box body. According to the double-open type stock bin discharging door device, rapid and accurate discharging action can be achieved, discharging efficiency is improved, the phenomenon of clamping stagnation caused by the fact that foreign matter adheres to the edge of the discharging door plate can be effectively avoided, it is guaranteed that the discharging door plate can be opened and closed smoothly, manual cleaning frequency is reduced, aggregate adaptability is improved, and the service life of the discharging door plate is prolonged. And the device can be adapted to unloading operation of aggregates with different humidity.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge doors, in particular to a double-opening silo discharge door device and concrete mixing equipment using the double-opening silo discharge door device. Background Art

[0002] In the concrete production process, aggregates are first transported to the intermediate buffer bin of aggregates through the aggregate conveying device for temporary storage, and then enter the mixing device for mixing. Usually, an automatic opening and closing discharge door device is arranged under the intermediate buffer bin structure of aggregates, so as to conveniently control the aggregates in the intermediate buffer bin to enter the mixing device for mixing production according to the settings. For example, the Chinese utility model patent CN213504135U provides an automatic control opening and closing device for the discharge door of the silo, which realizes the automatic opening and closing action of the discharge door through the cooperation of the rotating shaft, the rotating arm and the cylinder, and changes the manual operation to the electric start control, which can greatly improve the discharge efficiency and make the powder material discharge more thorough, thereby improving the overall production efficiency and quality.

[0003] However, due to the different moisture contents of aggregates, when the aggregates are unloaded into the mixing device, foreign objects may adhere to the discharge door and cause it to get stuck, resulting in the discharge door being unable to close or open normally, seriously affecting the normal production of concrete. Utility Model Content

[0004] The utility model primarily provides a double-opening silo discharge door device to solve the technical problem that the existing discharge door is easily adhered to foreign matter and becomes stuck.

[0005] The utility model also provides a concrete mixing device, which adopts the double-opening silo discharge door device.

[0006] According to the first aspect of the utility model, a double-opening silo unloading door device is provided, comprising a box body with a feeding port on the top, two unloading door panels arranged on opposite sides of the feeding port and respectively hinged to the box body, and a driving mechanism connected to the unloading door panels, the driving mechanism being used to drive the unloading door panels to rotate and open and close so as to open or close the feeding port, and the box body being provided with a material blocking eaves above the unloading door panels, which surrounds the feeding port and is used to block the edge position of the unloading door panels.

[0007] Preferably, two driving mechanisms are provided, and the two driving mechanisms are connected to the two unloading door panels in a one-to-one correspondence.

[0008] Preferably, the driving mechanism includes a rotating shaft arranged in the casing, and a rotating arm, a driving cylinder and a fixed seat all arranged outside the casing, the rotating shaft is rotatably mounted on the casing and connected to the unloading door plate, the rotating shaft includes a connecting section extending axially out of the casing, the first end of the rotating arm is connected to the connecting section, the second end of the rotating arm is wound around the bottom of the unloading door plate and hinged to the piston rod of the driving cylinder, and the cylinder body of the driving cylinder is hinged to the fixed seat.

[0009] Preferably, the driving cylinders of the two driving mechanisms are disposed on opposite sides of the box and have opposite power output directions.

[0010] Preferably, an arc-shaped guide groove is provided on the outer side wall of the box body, and a guide block is provided on the rotating arm, which is embedded in the arc-shaped guide groove and used for sliding along the arc-shaped guide groove.

[0011] Preferably, the box body includes a mounting cavity arranged on one side of the feed inlet, and the rotating shaft is arranged in the mounting cavity to avoid a material dropping position of the feed inlet.

[0012] Preferably, the double-opening silo unloading door device also includes a safety pin, and a limiting hole is provided on the side wall of the box body. The safety pin is inserted into the limiting hole and penetrates into the interior of the box body through the limiting hole. The section of the safety pin that penetrates into the interior of the box body is used to abut against the side of the unloading door panel facing the opening direction.

[0013] Preferably, the safety pin is arranged between the two unloading door panels and is used to abut the two unloading door panels at the same time.

[0014] Preferably, a sealing strip for abutting against the unloading door panel is provided on one side of the material retaining eave facing the unloading door panel.

[0015] According to the second aspect of the utility model, a concrete mixing device is also provided, comprising an aggregate buffer bin and a mixing device arranged below the aggregate buffer bin, and the above-mentioned double-opening bin unloading door device, wherein the double-opening bin unloading door device is arranged between the aggregate buffer bin and the mixing device.

[0016] The utility model has the following beneficial effects:

[0017] The double-opening silo unloading door device provided by the utility model automatically controls the opening and closing action of the unloading door panel through a driving mechanism, and is provided with a material blocking eaves above the unloading door panel for shielding the edge position of the unloading door panel, which can not only realize fast and accurate unloading action and improve unloading efficiency, but also effectively avoid the sticking phenomenon caused by foreign matter adhering to the edge position of the unloading door panel, thereby ensuring that the unloading door panel can be opened and closed smoothly, reducing the frequency of manual cleaning, and improving the adaptability of aggregates, and can adapt to the unloading operation of aggregates with different humidity.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a double-opening silo discharge door device provided in an embodiment of the utility model;

[0021] Figure 2 for Figure 1 The diagram of the changing state of the double-opening silo discharge door device shows the open state of the discharge door plate;

[0022] Figure 3 for Figure 1 The cross-sectional structural diagram of the double-opening silo discharge door device along the AA direction is shown;

[0023] Figure 4 A schematic structural diagram of a double-opening silo discharge door device provided in another embodiment of the utility model.

[0024] Legend:

[0025] 1. Box body; 11. Feed inlet; 12. Material retaining eaves; 13. Arc guide groove; 14. Installation cavity; 15. Limit hole; 2. Unloading door panel; 3. Driving mechanism; 31. Rotating shaft; 32. Rotating arm; 321. Guide block; 33. Driving cylinder; 34. Fixed seat; 4. Connecting flange; 5. Safety pin; 51. Limit plug. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0027] Figures 1 to 4Together they show a double-opening silo unloading door device provided by an embodiment of the utility model, which is used for automatically opening and closing to realize unloading operations, has a simple and efficient structure, can effectively prevent materials from sticking to the edge of the unloading door panel and causing the unloading door panel to become stuck, and ensure that the unloading door panel can be smoothly rotated and opened and closed.

[0028] Please combine Figure 1 and Figure 2 The double-opening silo unloading door device includes a box body 1, a unloading door panel 2 and a driving mechanism 3. The top of the box body 1 is provided with a feeding port 11. The unloading door panel 2 is provided with two leaves. The two unloading door panels 2 are arranged on opposite sides of the feeding port 11 and are respectively hinged to the box body 1, and the two unloading door panels 2 are in contact with each other when in a closed state to completely block the feeding port 11. The driving mechanism 3 is connected to the unloading door panel 2 and is used to drive the unloading door panel 2 to rotate and open and close, thereby driving the unloading door panel 2 to open or close the feeding port 11.

[0029] like Figure 3 As shown, the box body 1 is provided with a material blocking eave 12 surrounding the feed port 11 above the discharge door panel 2 , and the material blocking eave 12 is used to block the edge position of the discharge door panel 2 to prevent materials from falling into the edge position of the discharge door panel 2 .

[0030] The double-opening silo unloading door device automatically controls the opening and closing action of the unloading door panel 2 through the driving mechanism 3, and is provided with a material blocking eave 12 above the unloading door panel 2 for shielding the edge position of the unloading door panel 2, which can not only realize fast and accurate unloading action and improve unloading efficiency, but also effectively avoid the edge position of the unloading door panel 2 from adhering foreign matter and causing jamming, ensure that the unloading door panel 2 can be opened and closed smoothly, reduce the frequency of manual cleaning, and improve aggregate adaptability, so as to adapt to the unloading operation of aggregates with different humidity.

[0031] Preferably, the upper surface of the material-blocking eaves 12 is provided with a material guiding slope, and the material guiding slope is arranged to be inclined downward along the center direction of the material inlet 11, so that the material falling onto the material-blocking eaves 12 can be guided through the material inlet 11 by the material guiding slope to avoid the accumulation of materials on the material-blocking eaves 12. At the same time, the material guiding slope can also play the role of gathering materials to avoid the materials from scattering outwards during the falling process, thereby improving the unloading effect.

[0032] Preferably, a sealing strip (not shown in the figure, the same below) for abutting against the unloading door panel 2 is provided on one side of the material retaining eave 12 facing the unloading door panel 2 to enhance the closing and sealing effect of the unloading door panel 2 .

[0033] Preferably, two driving mechanisms 3 are provided, and the two driving mechanisms 3 are connected to the two unloading door panels 2 in a one-to-one correspondence. The two unloading door panels 2 are driven to open and close respectively by the two driving mechanisms 3, thereby effectively reducing the load of a single driving mechanism 3. The driving mechanism 3 has a strong bearing capacity and a stable and reliable structure. It can not only stably drive the two unloading door panels 2 to open and close at the same time, but also drive any one of the unloading door panels 2 to open and close individually, which is suitable for more application scenarios.

[0034] Please combine Figure 1 and Figure 2 The driving mechanism 3 includes a rotating shaft 31 arranged in the box body 1, and a rotating arm 32, a driving cylinder 33 and a fixed seat 34 all arranged outside the box body 1. The rotating shaft 31 is rotatably mounted on the box body 1 and connected to the unloading door plate 2. The rotating shaft 31 includes a connecting section extending axially out of the box body 1. The first end of the rotating arm 32 is connected to the connecting section. The second end of the rotating arm 32 is wound around the bottom of the unloading door plate 2 and is hinged to the piston rod of the driving cylinder 33. The cylinder body of the driving cylinder 33 is hinged to the fixed seat 34.

[0035] Specifically, when the piston rod of the driving cylinder 33 is extended, the rotating shaft 31 can be driven to rotate through the rotating arm 32, thereby driving the unloading door plate 2 to rotate and open; similarly, when the piston rod of the driving cylinder 33 is retracted, the rotating shaft 31 can be driven to rotate in another direction through the rotating arm 32, thereby driving the unloading door plate 2 to rotate and close. The driving structure is simple and efficient, occupies less space, has strong stability, and because the rotating arm 32, the driving cylinder 33 and the fixing seat 34 are all arranged outside the box body 1, they will not contact the material, effectively improving the service life.

[0036] Preferably, the driving cylinders 33 of the two driving mechanisms 3 are arranged on opposite sides of the box body 1 and have opposite power output directions, so that the two driving mechanisms 3 are arranged in the side wall space of the box body 1 efficiently, avoiding mutual interference between the actions of the two driving cylinders 33, and making the overall force and weight of the box body 1 balanced, thereby improving the stability of the double-opening silo unloading door device.

[0037] like Figure 4 As shown, in another embodiment, an arc-shaped guide groove 13 is further provided on the outer wall of the box body 1, and a guide block 321 is provided on the rotating arm 32, which is embedded in the arc-shaped guide groove 13 and used to slide along the arc-shaped guide groove 13. The guide block 321 is arranged between the rotating shaft 31 and the piston rod of the driving cylinder 33. The swinging path of the rotating arm 32 is limited by the guiding cooperation between the guide block 321 and the arc-shaped guide groove 13, so as to improve the swinging smoothness and stability of the rotating arm 32 and avoid the problem of the rotating arm 32 being skewed and stuck.

[0038] like Figure 1 As shown, the box body 1 also includes an installation cavity 14 arranged on one side of the feed port 11, the rotating shaft 31 is arranged in the installation cavity 14 to avoid the falling position of the feed port 11, and the unloading door panel 2 extends into the installation cavity 14 and is connected to the rotating shaft 31. The rotating shaft 31 is shielded and protected by the installation cavity 14 to prevent materials from falling onto the rotating shaft 31.

[0039] Furthermore, the double-opening silo discharge door device also includes a connecting flange 4 arranged on the inlet 11, and the connecting flange 4 is used to connect with the discharge port of other devices, specifically, it can be connected with the discharge port of a silo, hopper or material making device to ensure a sealing effect.

[0040] Please combine Figure 1 and Figure 3 Preferably, the double-opening silo discharge door device further includes a safety pin 5. A limit hole 15 is provided on the side wall of the box body 1. The safety pin 5 is inserted into the limit hole 15 and penetrates into the interior of the box body 1 through the limit hole 15. The section of the safety pin 5 that penetrates into the interior of the box body 1 is used to abut against the side of the discharge door panel 2 facing the opening direction. Therefore, after the safety pin 5 is fully inserted into the limit hole 15, the discharge door panel 2 can be locked and limited. The safety pin 5 can be inserted when the discharge door panel 2 is in a full material state for a long time or needs to be fully material for maintenance to prevent the discharge door panel 2 from opening accidentally, thereby ensuring the safety of personnel and equipment.

[0041] Preferably, the safety pin 5 is arranged between the two unloading door panels 2 and is used to abut the two unloading door panels 2 at the same time. The two unloading door panels 2 can be locked at the same time by one safety pin 5. Compared with the method of configuring multiple sets of locking structures to lock the two unloading door panels 2 separately, it effectively improves the operational convenience and reduces the probability of misoperation.

[0042] Furthermore, a limit plug 51 is provided at the end of the safety pin 5, and the limit plug 51 is used to abut against the outer wall of the box body 1 to limit the stroke of the safety pin 5 inserted into the limit hole 15, so as to facilitate the safety pin 5 to be quickly inserted into place.

[0043] As a second aspect, an embodiment of the utility model further provides a concrete mixing equipment (not shown in the figure, the same below), including an aggregate buffer bin and a mixing device arranged below the aggregate buffer bin, and the above-mentioned double-opening bin unloading door device, wherein the double-opening bin unloading door device is arranged between the aggregate buffer bin and the mixing device.

[0044] The concrete mixing equipment opens or closes the passage between the aggregate buffer bin and the mixing device through the double-opening silo discharge door device, which can not only achieve fast and accurate unloading action and improve unloading efficiency, but also effectively avoid the sticking phenomenon caused by foreign matter adhering to the edge of the discharge door panel 2, ensuring that the discharge door panel 2 can be opened and closed smoothly, reducing the frequency of manual cleaning, and improving aggregate adaptability, so as to adapt to the mixing operation of aggregates with different humidity.

[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A double-opening silo discharge door device, characterized in that: The invention comprises a box body (1) with a feeding port (11) at the top, two discharge door panels (2) arranged at opposite sides of the feeding port (11) and respectively hinged to the box body (1), and a driving mechanism (3) connected to the discharge door panels (2), wherein the driving mechanism (3) is used to drive the discharge door panels (2) to rotate and open and close so as to open or close the feeding port (11); and the box body (1) is provided with a material blocking eave (12) above the discharge door panels (2) which surrounds the feeding port (11) and is used to cover the edge of the discharge door panels (2).

2. The double-opening silo discharge door device according to claim 1, characterized in that: The driving mechanisms (3) are provided with two, and the two driving mechanisms (3) are connected to the two unloading door panels (2) in a one-to-one correspondence.

3. The double-opening silo discharge door device according to claim 2, characterized in that: The driving mechanism (3) comprises a rotating shaft (31) arranged in the housing (1), and a rotating arm (32), a driving cylinder (33) and a fixed seat (34) all arranged outside the housing (1); the rotating shaft (31) is rotatably mounted on the housing (1) and connected to the unloading door plate (2); the rotating shaft (31) comprises a connecting section extending axially and passing through the outside of the housing (1); a first end of the rotating arm (32) is connected to the connecting section; a second end of the rotating arm (32) is arranged around the bottom of the unloading door plate (2) and is hinged to the piston rod of the driving cylinder (33); and a cylinder body of the driving cylinder (33) is hinged to the fixed seat (34).

4. The double-opening silo discharge door device according to claim 3, characterized in that: The driving cylinders (33) of the two driving mechanisms (3) are arranged on opposite sides of the box (1) and have opposite power output directions.

5. The double-opening silo discharge door device according to claim 3, characterized in that: An arc-shaped guide groove (13) is provided on the outer side wall of the box body (1), and a guide block (321) is provided on the rotating arm (32) and is embedded in the arc-shaped guide groove (13) and used for sliding along the arc-shaped guide groove (13).

6. The double-opening silo discharge door device according to claim 3, characterized in that: The box body (1) comprises a mounting cavity (14) arranged on one side of the material inlet (11), and the rotating shaft (31) is arranged in the mounting cavity (14) to avoid the material drop position of the material inlet (11).

7. The double-opening silo discharge door device according to claim 1, characterized in that: The double-opening silo discharge door device also includes a safety pin (5). A limit hole (15) is provided on the side wall of the box body (1). The safety pin (5) is inserted into the limit hole (15) and penetrates into the interior of the box body (1) through the limit hole (15). The section of the safety pin (5) that penetrates into the interior of the box body (1) is used to abut against the side of the discharge door panel (2) facing the opening direction.

8. The double-opening silo discharge door device according to claim 7, characterized in that: The safety pin (5) is arranged between the two unloading door panels (2) and is used to abut against the two unloading door panels (2) at the same time.

9. The double-opening silo discharge door device according to claim 1, characterized in that: A sealing strip for abutting against the unloading door panel (2) is provided on one side of the material blocking eave (12) facing the unloading door panel (2).

10. A concrete mixing device, comprising an aggregate buffer bin and a mixing device arranged below the aggregate buffer bin, characterized in that: The concrete mixing equipment further comprises a double-opening silo discharge door device as claimed in any one of claims 1 to 9, wherein the double-opening silo discharge door device is arranged between the aggregate buffer silo and the mixing device.

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