Hydraulic sweeper capable of automatically avoiding

Abstract

The utility model provides a hydraulic sweeper capable of automatically avoiding, and belongs to the technical field of conveyor sweepers. The problems that according to an existing sweeper for the conveyor, a spring needs to be manually adjusted to enable a scraper to be tightly attached to a conveying rubber belt, abrasion is prone to occurring, and the reliability of the sweeper is low are solved. Comprising a scraping plate, the scraping plate is fixed to a sweeper base, connecting bases are fixed to the two ends of the sweeper base, connecting rods are further arranged on the connecting bases and connected with the sweeper base, hydraulic oil cylinders are further installed on the connecting bases, piston rods of the hydraulic oil cylinders abut against the connecting rods, the hydraulic oil cylinders are connected with an energy accumulator, and the hydraulic oil cylinders are further connected with a hydraulic station through oil pipes. The control end of the hydraulic oil cylinder controls the electromagnetic valve to be connected with the PLC local control box; the connecting base is further provided with a pressure sensor used for detecting the working state of the scraper blade, a torque sensor and an induction type proximity sensor used for detecting the seam of the conveying belt. The utility model is applied to conveyors.

Description

Technical Field

[0001] The utility model provides a hydraulic sweeper capable of automatically avoiding, belonging to the technical field of conveyor sweepers. Background Art

[0002] A sweeper, also known as a scraping plate, is mainly used at the head and tail of a conveyor. Installed at the head of the conveyor, it is mainly used to scrape the sticky materials on the working surface of the conveyor belt. Installed at the tail of the conveyor, it is mainly used to scrape the accumulated materials on the non - working surface of the conveyor belt to prevent them from being brought into the tail roller. Poor cleaning effect will bring the following problems: due to too much material spillage, the on - site environment is deteriorated, the workload of on - site cleaning is increased, thus increasing the labor cost of the enterprise. Cleaning during operation increases the safety risk and affects safe, clean and civilized production; due to the adhesion of materials on the conveyor belt, it will cause belt - carrying friction between the return idlers and drums and the conveyor belt, as well as belt deviation, greatly reducing the service life of the conveyor belt, related drums and return idlers, and reducing the workload of maintenance personnel and maintenance costs.

[0003] Problems compared with the prior art: Most of the existing conveyor sweepers are directly fixed on the conveyor. It is necessary to manually adjust the spring to make the scraper closely adhere to the conveyor belt, which is extremely easy to wear, resulting in low reliability of the sweeper. Therefore, the utility model proposes a hydraulic sweeper capable of automatically avoiding to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide an improvement in the hardware structure of a hydraulic sweeper capable of automatically avoiding.

[0005] To solve the above - mentioned technical problem, the technical solution adopted by the utility model is: a hydraulic sweeper capable of automatically avoiding, including a scraper, the scraper is fixed on a sweeper seat, both ends of the sweeper seat are fixed with connecting seats, a connecting rod is further arranged on the connecting seat, the connecting rod is connected with the sweeper seat, a hydraulic cylinder is further installed on the connecting seat, the piston rod of the hydraulic cylinder abuts against the connecting rod, the hydraulic cylinder is connected with an accumulator, the hydraulic cylinder is further connected with a hydraulic station through an oil pipe, and the control end of the hydraulic cylinder controls a solenoid valve which is connected with a PLC local control box;

[0006] A pressure sensor, a torque sensor for detecting the working state of the scraper and an inductive proximity sensor for detecting the joint of the conveyor belt are further arranged on the connecting seat, and the pressure sensor, the torque sensor and the inductive proximity sensor are respectively connected with the PLC local control box through wires.

[0007] Furthermore, a temperature sensor for detecting the working temperature of the hydraulic cylinder is further arranged on the connecting seat, and the temperature sensor is connected with the PLC local control box through a wire.

[0008] Further, the hydraulic station is built-in with monitoring / detection elements for oil pressure and oil temperature, and a display screen is also provided on the hydraulic station for displaying the oil temperature and oil pressure.

[0009] Further, the hydraulic station adopts an open-type oil tank, an air filter is arranged in the open-type oil tank, a filter is arranged in the system circuit of the hydraulic station, and a pollution indicator is installed on the filter.

[0010] Further, the local PLC control box is also connected to the main control system of the conveyor through a wire.

[0011] Further, the hydraulic sweeper is used for the first and second passes and the empty section cleaning at the head of the conveyor.

[0012] The beneficial effects of the present utility model compared with the prior art are as follows: The automatically avoidable hydraulic sweeper provided by the present utility model can accurately and constantly control the normal pressure of the contact between the scraper and the belt through a hydraulic cylinder, detect the joint of the belt through an inductive proximity sensor, and then control the separation of the scraper from the belt through a hydraulic cylinder, realizing the automatic avoidance of the joint on the belt, which can effectively improve the automation level of coal mines, improve the working accuracy of the sweeper, increase the working efficiency of the sweeper, and extend the service life of rollers and idlers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the present utility model with reference to the drawings:

[0014] Figure 1 is a structural schematic diagram of the present utility model Figure 1 ;

[0015] Figure 2 is a structural schematic diagram of the present utility model Figure 2

[0016] Figure 3 is a schematic circuit connection diagram of the present utility model;

[0017] In the figure: 1 is a scraper, 2 is a sweeper seat, 3 is a connecting seat, 4 is a pressure sensor, 5 is a torque sensor, 6 is a temperature sensor, 7 is an inductive proximity sensor, 8 is a hydraulic cylinder, 9 is an accumulator, 10 is a solenoid valve, 11 is a local PLC control box, and 12 is a hydraulic station. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As Figures 1-3As shown in the figure, the utility model provides a hydraulic sweeper that can automatically avoid obstacles, including a mechanical part, an electric control part, and a sensing part. The mechanical part is installed on the conveyor frame and includes a scraper 1, a sweeper seat 2, and a connecting seat 3. The scraper 1 is fixed to the sweeper seat 2 by bolts. After the sweeper seat 2 passes through the reserved hole on the connecting seat 3, its position is fixed by two sets of screws facing each other, which is convenient for adjusting the installation position of the mechanical part of the hydraulic sweeper on the conveyor.

[0019] The electric control part includes a hydraulic cylinder 8, an accumulator 9, a solenoid valve 10, a PLC local control box 11, and a hydraulic station 12. The hydraulic cylinder 8 is installed at a specified position by bolts and abuts against the adjusting rod of the connecting seat 3, and then is connected to the accumulator 9 to ensure accurate and constant control of the positive pressure of the scraper 1 contacting the belt. Then, in sequence, there are the solenoid valve 10, the PLC local control box 11, and the hydraulic station 12. The solenoid valve 10 is responsible for starting and stopping, the PLC local control box 11 controls the solenoid valve 10, and the hydraulic station 12 is responsible for converting mechanical energy into hydraulic energy, providing hydraulic power for the hydraulic sweeper, and playing a safety protection role.

[0020] The adjusting rod can drive the sweeper seat 2 to rotate a certain angle, thereby adjusting the contact area and pressure between the scraper 1 and the belt.

[0021] The sensing part includes a pressure sensor 4, a torque sensor 5, a temperature sensor 6, and an inductive proximity sensor 7 installed on the connecting seat 3. The above sensors are all electrically connected to the PLC local control box 11. Among them, the pressure sensor 4 and the torque sensor 5 are responsible for monitoring the working state of the scraper 1, the temperature sensor 6 is responsible for monitoring the working temperature of the hydraulic cylinder 8, and the inductive proximity sensor 7 is responsible for feeding back the situation at the conveyor belt joint, providing necessary information for the avoidance of the scraper 1, and realizing the automatic avoidance function under the guidance of the preset program to protect the belt buckle.

[0022] The hydraulic station 12 is internally provided with oil pressure monitoring and detection components, such as an electric contact pressure gauge, a pressure sensor, etc.; the hydraulic station 12 has the functions of oil temperature and oil pressure detection and display. The open-type oil tank is provided with an air filter, and a filter is provided in the system circuit, and the filter is equipped with a pollution indicator.

[0023] Such as Figure 3 As shown in the figure, the pressure sensor 4, the torque sensor 5, the temperature sensor 6, and the inductive proximity sensor 7 are respectively connected to the PLC local control box 11 through signal lines. The PLC local control box 11 is also connected with a local button operation box through a control line. There are reserved interfaces on the PLC local control box 11, which can be connected to the conveyor main control system through communication lines to realize local control and remote control of the equipment. The hydraulic station 12 is connected to the solenoid valve 10 through an oil pipe, the solenoid valve 10 is connected to the PLC local control box 11, the hydraulic station 12 is externally connected to a power supply, and outputs power to supply power to the PLC local control box 11.

[0024] When the utility model is actually used, the mechanical part is installed on the conveyor frame. The scraper 1 is controlled to contact the belt through the hydraulic cylinder 8. It can also be applied to the first, second and empty section cleaners at the head of the conveyor. Through the joint cooperation of the mechanical, electric control and induction parts, the established actions are completed and the established goals are achieved.

[0025] The working principle of the utility model is as follows: According to the need, the mechanical part is installed on the corresponding part of the conveyor frame, under the belt. Then the hydraulic cylinder 8 is installed on the adjusting rod of the connecting seat 3, and electrical connection is carried out. The hydraulic cylinder 8 is abutted against the adjusting rod of the connecting seat 3, so that the scraper 1 contacts the belt. When the conveyor is running, the working state of the scraper 1 is monitored in real time through the pressure sensor 4 and the torque sensor 5, and the joint of the belt is detected through the inductive proximity sensor 7. When a joint of the belt is detected, the hydraulic cylinder 8 is controlled by the PLC local control box 11 to loosen the abutment against the adjusting rod, so that the scraper 1 is in a separated state from the belt, realizing the automatic avoidance function and protecting the belt buckle.

[0026] Regarding the specific structure of the utility model, it should be noted that the connection relationship between the various component modules adopted by the utility model is determined and achievable. Except for the special description in the embodiment, the specific connection relationship can bring corresponding technical effects, and on the premise of not relying on the execution of the corresponding software program, the technical problems proposed by the utility model are solved. The models of the components, modules and specific components, the connection methods between each other, and the conventional usage methods and expected technical effects brought by the above technical features, except for the specific description, all belong to the patent, journal papers, technical manuals, technical dictionaries, and the publicly disclosed content in textbooks that those skilled in the art can obtain before the application date, or belong to the conventional technology and common knowledge in the art, which need not be elaborated. The technical solution provided in this case is clear, complete and achievable, and the corresponding physical product can be reproduced or obtained according to this technical means.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features thereof; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A hydraulic sweeper capable of automatically avoiding obstacles, comprising a scraper (1), the scraper (1) being fixed on a sweeper seat (2), and connecting seats (3) being fixed at both ends of the sweeper seat (2), characterized in that: A connecting rod is further provided on the connecting seat (3). The connecting rod is connected to the sweeper seat (2). A hydraulic cylinder (8) is further installed on the connecting seat (3). The piston rod of the hydraulic cylinder (8) abuts against the connecting rod. The hydraulic cylinder (8) is connected to an accumulator (9). The hydraulic cylinder (8) is also connected to a hydraulic station (12) through an oil pipe. The control end of the hydraulic cylinder (8) controls a solenoid valve (10) which is connected to a PLC local control box (11). A pressure sensor (4), a torque sensor (5) for detecting the working state of the scraper (1), and an inductive proximity sensor (7) for detecting the conveyor belt joint are further provided on the connecting seat (3). The pressure sensor (4), the torque sensor (5), and the inductive proximity sensor (7) are respectively connected to the PLC local control box (11) through wires.

2. The hydraulic sweeper capable of automatically avoiding according to claim 1, wherein: A temperature sensor (6) for detecting the working temperature of the hydraulic cylinder (8) is further provided on the connecting seat (3). The temperature sensor (6) is connected to the PLC local control box (11) through a wire.

3. The hydraulic sweeper capable of automatically avoiding according to claim 1, wherein: The hydraulic station (12) is internally provided with monitoring / detecting elements for oil pressure and oil temperature. A display screen is further provided on the hydraulic station (12) for displaying the oil temperature and oil pressure.

4. The hydraulic sweeper capable of automatically avoiding according to claim 3, characterized in that: The hydraulic station (12) adopts an open-type oil tank. An air filter is provided in the open-type oil tank. A filter is provided in the system circuit of the hydraulic station (12). A pollution indicator is installed on the filter.

5. The hydraulic sweeper capable of automatically avoiding according to claim 2, characterized in that: The PLC local control box (11) is also connected to the main control system of the conveyor through a wire.

6. A hydraulic sweeper capable of automatically avoiding obstacles according to any one of claims 1-5, characterized in that: The hydraulic sweeper is used for the first and second passes and the empty section cleaning at the head of the conveyor.

Images