Powder feeding device of concrete mixing plant

Abstract

The utility model belongs to the technical field of concrete mixing plants, and particularly relates to a powder feeding device of a concrete mixing plant, which comprises a support, a storage bin arranged on the support, a feeding port arranged at the top of the storage bin, a rotary valve arranged at the bottom of the storage bin, a motor mounting frame arranged at the top of the storage bin, and a driving motor arranged in the motor mounting frame. A threaded rod is arranged at the output end of the driving motor, and the storage bin comprises a lining assembly, a scraping cavity, a scraping ring and a polyurethane elastic coating. Through the lining assembly, the scraping cavity, the scraping ring, the driving motor and the threaded rod, powder is prevented from being attached to the inner wall of the storage bin, the powder attached to the inner wall of the storage bin is effectively removed, vibration cannot be caused to the whole storage bin, structural stability of the storage bin and the support is guaranteed, potential safety hazards are avoided, and the service life of the storage bin is prolonged. And the movement of the scraping ring does not cause vibration to the whole storage bin, so that the structural stability of the storage bin and the bracket is guaranteed, and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing station technical field, concretely to a kind of concrete mixing station powder feeding device. BACKGROUND

[0002] Concrete mixing station is used to concentrate the combined device of mixing concrete, in the process of concrete mixing, usually need to be preloaded to the storage bin located at the top of mixing tank powder, then by storage bin to mixing tank and add powder, storage bin and its output equipment collectively called as the powder feeding device of mixing station.

[0003] Prior art has the following deficiencies: Prior art in application No. 202020903238.6, proposes concrete mixing station powder feeding device, relates to concrete processing technical field, concretely to concrete mixing station powder feeding device, including storage bin, the top of the storage bin is fixedly connected with driving motor, the bottom of the driving motor is fixedly connected with transmission shaft, the right side of the transmission shaft is fixedly connected with connecting rod, the right side of the connecting rod is fixedly connected with scraping plate. The concrete mixing station powder feeding device, by driving motor drives transmission shaft rotation, again by transmission shaft drives scraping plate rotation, makes scraping plate on the dust on the inner wall of storage bin to scrape, avoids powder to adhere on the inner wall of storage bin, guarantees the accuracy of powder addition, improves the quality of concrete processing, by transmission shaft drives broken blade rotation, again by broken blade to the powder in the interior of storage bin is pulverized, avoids powder to cake in the interior of storage bin, guarantees the smooth downward flow of powder.

[0004] The above-mentioned device uses vibration motor, vibrator, eccentric wheel, impact block and other structures to impact the storage bin to produce vibration, to shake off the powder adhered to the inner wall of the storage bin, in actual application, due to the large capacity of the powder storage bin of the mixing station, measured in tonnage, the vibration amplitude generated by this way to the storage bin is small, cannot achieve good effect of removing the powder on the inner wall of the storage bin, at the same time, the storage bin is subjected to vibration for a long time, which will affect the stability of itself and its supporting structure, and there is a safety hazard. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a concrete mixing station powder feeding device to solve the problems raised in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of concrete mixing station powder feeding device, including support, storage bin is arranged on the support, the top of the storage bin is provided with feed inlet, the bottom of the storage bin is provided with rotary valve, the top of the storage bin is provided with motor mounting bracket, driving motor is arranged in the motor mounting bracket, the output end of the driving motor is provided with threaded rod;

[0007] The storage bin comprises an inner lining assembly, a scraping cavity, a scraping ring and a polyurethane elastic coating, the inner wall of the storage bin is provided with the inner lining assembly, a scraping cavity is formed between the inner lining assembly and the storage bin, the scraping cavity is provided with the scraping ring, and the inner side of the inner lining assembly is coated with the polyurethane elastic coating.

[0008] As a preferred technical scheme of the utility model: the storage bin is fixedly installed on the support, and the rotary valve is fixedly installed at the bottom end of the storage bin and is communicated with the inside of the storage bin.

[0009] As a preferred technical scheme of the utility model: the motor mounting frame is fixedly installed on the top of the storage bin, and the driving motor is fixedly installed in the motor mounting frame.

[0010] As a preferred technical scheme of the utility model: the driving motor is two groups and is symmetrically arranged, and the driving motors are connected with external reverse switch.

[0011] As a preferred technical scheme of the utility model: the inner lining assembly is fixedly installed in the inside of the storage bin, and the inner lining assembly is made of rubber.

[0012] As a preferred technical scheme of the utility model: the scraping ring is three groups and is arranged in the scraping cavity, and the ring width of the scraping ring is greater than the width of the scraping cavity.

[0013] As a preferred technical scheme of the utility model: the scraping ring is provided with a threaded hole matched with the threaded rod, one end of the threaded rod is fixedly connected to the output end of the driving motor, the other end of the threaded rod extends into the scraping cavity and passes through the scraping ring, and the scraping ring and the threaded rod are threadedly connected.

[0014] Compared with the prior art, the utility model provides a concrete mixing station powder feeding device, which has the following beneficial effects:

[0015] 1、The concrete mixing station powder feeding device, through setting up inner lining assembly, scraping cavity, scraping ring, driving motor, threaded rod, driving motor starts and drives threaded rod to rotate, promotes scraping ring to move up and down in scraping cavity, the position of the outer side of the lining assembly corresponding to the scraping ring will be raised, the position of the outer side of the lining assembly raised will also change position, promote the powder attached to the inner wall of the storage bin to fall, avoid the powder attached to the inner wall of the storage bin, effectively remove the powder attached to the inner wall of the storage bin, and will not cause vibration to the whole storage bin, guarantee the structure stability of the storage bin and the support, avoid the generation of safety hidden trouble.

[0016] 2. The concrete mixing plant powder feeding device, through the setting of the scraping cavity, the scraper ring and the threaded rod, effectively removes the powder attached to the inner wall of the storage bin, and the movement of the scraper ring does not cause vibration to the whole storage bin, ensures the structural stability of the storage bin and the support, and avoids the generation of safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the local section of the storage bin of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure of the threaded rod and the scraper ring of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal lining assembly structure of the utility model.

[0021] In the figure: 1, support; 2, storage bin; 201, internal lining assembly; 202, scraping cavity; 203, scraper ring; 204, polyurethane elastic coating; 3, feeding port; 4, rotary valve; 5, motor mounting frame; 6, driving motor; 7, threaded rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 In the embodiment, the concrete mixing plant powder feeding device comprises a support 1, the support 1 is provided with a storage bin 2, the top of the storage bin 2 is provided with a feeding port 3, the bottom of the storage bin 2 is provided with a rotary valve 4, the top of the storage bin 2 is provided with a motor mounting frame 5, the motor mounting frame 5 is provided with a driving motor 6, and the output end of the driving motor 6 is provided with a threaded rod 7.

[0024] The motor mounting frame 5 can facilitate the installation of the driving motor 6, and the feeding port 3 can facilitate the addition of the powder required for concrete mixing into the storage bin 2.

[0025] The storage bin 2 comprises a lining assembly 201, a scraping cavity 202, a scraping ring 203 and a polyurethane elastic coating 204, the inner wall of the storage bin 2 is provided with the lining assembly 201, the scraping cavity 202 is formed between the lining assembly 201 and the storage bin 2, the scraping ring 203 is arranged in the scraping cavity 202, and the inner side of the lining assembly 201 is coated with the polyurethane elastic coating 204;

[0026] The scraping cavity 202 can provide installation space for the scraping ring 203 and provide sufficient up-down movement space.

[0027] In the embodiment, the storage bin 2 is fixedly installed on the support 1, the rotary valve 4 is fixedly installed at the bottom end of the storage bin 2 and is in communication with the inside of the storage bin 2, the motor mounting frame 5 is fixedly installed at the top of the storage bin 2, and the driving motor 6 is fixedly installed in the motor mounting frame 5;

[0028] Specifically, the driving motor 6 can provide sufficient power for the rotation of the threaded rod 7.

[0029] In the embodiment, the driving motor 6 has two groups and is symmetrically arranged, the driving motors 6 are connected with external reverse switches, the lining assembly 201 is fixedly installed in the storage bin 2, and the lining assembly 201 is made of rubber;

[0030] Specifically, the lining assembly 201 can correspond to the outer side protrusion when the scraping ring 203 moves up and down, so that the powder attached to the inner wall of the storage bin 2 falls off.

[0031] In the embodiment, the scraping ring 203 has three groups and is arranged in the scraping cavity 202, the ring width of the scraping ring 203 is greater than the width of the scraping cavity 202, the scraping ring 203 is provided with a threaded hole matched with the threaded rod 7, one end of the threaded rod 7 is fixedly connected to the output end of the driving motor 6, the other end of the threaded rod 7 extends into the scraping cavity 202 and penetrates through the scraping ring 203, and the scraping ring 203 is in threaded connection with the threaded rod 7;

[0032] Specifically, the threaded rod 7 can facilitate the up-down movement of the three groups of scraping rings 203.

[0033] The working principle and use process of the utility model: in actual use process, the storage bin 2 is installed on the corresponding concrete mixing station through the current conventional mode, and the powder is added into the storage bin 2 through the feed inlet 3, the control rotary valve 4 can make the powder in the storage bin 2 output from the bottom of the storage bin 2 into the concrete mixing station, along with the gradual reduction of the powder in the storage bin 2, the powder can be left on the inner wall of the storage bin 2, the two groups of driving motors 6 can be controlled by the external reverse switch to start and drive the threaded rod 7 to rotate, since the threaded rod 7 is screw connected between the three groups of scraper rings 203, so when the driving motor 6 drives the threaded rod 7 to rotate forward and reverse, the scraper ring 203 moves up and down in the scraping cavity 202, in the moving process of the scraper ring 203, the position of the outer side of the lining assembly 201 corresponding to the scraper ring 203 is protruded, the position of the outer side of the lining assembly 201 protruded is also changed with the movement of the scraper ring 203, which can make the powder attached to the inner wall of the storage bin 2 fall down, avoid the powder attached to the inner wall of the storage bin 2, effectively remove the powder attached to the inner wall of the storage bin 2, and will not cause vibration to the whole storage bin 2, guarantee the structure stability of the storage bin 2 and the support 1, avoid the generation of safety hidden trouble.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A concrete mixing station powder feeding device, comprising a support (1), a storage bin (2) is arranged on the support (1), and a feeding port (3) is arranged at the top of the storage bin (2), characterized in that: The bottom of the storage bin (2) is provided with a rotary valve (4), the top of the storage bin (2) is provided with a motor mounting rack (5), the motor mounting rack (5) is provided with a driving motor (6), and the output end of the driving motor (6) is provided with a threaded rod (7). The storage bin (2) comprises an inner lining assembly (201), a scraping cavity (202), a scraping ring (203) and a polyurethane elastic coating (204), the inner wall of the storage bin (2) is provided with the inner lining assembly (201), the inner lining assembly (201) and the storage bin (2) form the scraping cavity (202), the scraping cavity (202) is provided with the scraping ring (203), and the inner side of the inner lining assembly (201) is coated with the polyurethane elastic coating (204).

2. A powder feeding device for a concrete mixing plant according to claim 1, characterized in that The storage bin (2) is fixedly installed on the support (1), the rotary valve (4) is fixedly installed at the bottom end of the storage bin (2) and is connected with the inside of the storage bin (2).

3. A powder feeding device for a concrete mixing plant according to claim 1, characterized in that: The motor mounting rack (5) is fixedly installed on the top of the storage bin (2), and the driving motor (6) is fixedly installed in the motor mounting rack (5).

4. A powder feeding device for a concrete mixing plant according to claim 1, characterized in that: The driving motor (6) has two groups and is symmetrically arranged, and the driving motors (6) are connected with external reverse switches.

5. A powder feeding device for a concrete mixing plant according to claim 1, characterized in that: The inner lining assembly (201) is fixedly installed in the storage bin (2), and the inner lining assembly (201) is made of rubber.

6. A powder feeding apparatus for a concrete batching plant according to claim 1, wherein: The scraping ring (203) has three groups and is arranged in the scraping cavity (202), and the ring width of the scraping ring (203) is greater than the width of the scraping cavity (202).

7. A powder feeding apparatus for a concrete batching plant according to claim 1, wherein: The scraping ring (203) is provided with a threaded hole matched with the threaded rod (7), one end of the threaded rod (7) is fixedly connected to the output end of the driving motor (6), the other end of the threaded rod (7) extends into the scraping cavity (202) and penetrates through the scraping ring (203), and the scraping ring (203) and the threaded rod (7) are threadedly connected.

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