Automatic sewage treatment tank cover opening and closing device driven by hydraulic motor

Abstract

The utility model relates to an automatic sewage treatment tank cover opening and closing device driven by a hydraulic motor, which comprises a control cabinet, an electro-hydraulic driving head, the hydraulic motor, a transmission mechanism, an opening-in-place proximity switch and a closing-in-place proximity switch, and a rotating shaft of a sewage treatment tank cover is connected with a rotating shaft of the hydraulic motor through the transmission mechanism; the tail part of the hydraulic motor is connected with an electro-hydraulic driving head; the electro-hydraulic driving head is connected with the control cabinet through a cable; an in-place opening proximity switch and an in-place closing proximity switch are respectively arranged at the full-open position and the full-closed position of the sewage treatment tank cover and are connected with the control cabinet through cables. The device has the functional characteristics of low speed and large torque, and an operator remotely operates the opening and closing of the sewage treatment tank cover through the control box, so that the problem is solved, the automatic control of the sewage treatment tank cover is realized, the operation efficiency is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to a sewage treatment pool cover device, in particular to a device for automatically opening and closing the cover of the sewage treatment pool. Background Art

[0002] Traditional sewage treatment tank covers typically require manual operation, which is not only labor-intensive but also inefficient, especially when the cover needs to be frequently opened and closed. Furthermore, manual operation can easily lead to methane poisoning, posing a safety hazard. Therefore, a hydraulic motor-driven automatic opening and closing device for sewage treatment tank covers is needed to achieve automated control of the cover, improve operational efficiency, and reduce safety risks. Summary of the Invention

[0003] The purpose of this utility model is to provide an automatic opening and closing device for a sewage treatment pool cover driven by a hydraulic motor to solve the above-mentioned problems, realize automatic control of the sewage treatment pool cover, improve operating efficiency, and reduce safety risks.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a hydraulic motor-driven automatic opening and closing device for a sewage treatment pool cover, comprising a control cabinet, an electro-hydraulic drive head, a hydraulic motor, a transmission mechanism, an open position proximity switch, and a closed position proximity switch, the rotating shaft of the sewage treatment pool cover is connected to the rotating shaft of the hydraulic motor through the transmission mechanism; the tail of the hydraulic motor is connected to the electro-hydraulic drive head; the electro-hydraulic drive head is connected to the control cabinet through a cable; the fully open and fully closed positions of the sewage treatment pool cover are respectively provided with an open position proximity switch and a closed position proximity switch, and the open position proximity switch and the closed position proximity switch are connected to the control cabinet through a cable.

[0005] Furthermore, the electro-hydraulic drive head includes a hydraulic pump, a motor, an oil circuit hydraulic lock, an oil circuit safety valve, an oil tank, and an oil suction one-way valve. The motor drives the hydraulic pump, and the forward output end and reverse output end of the hydraulic pump are respectively connected to the forward oil chamber and reverse oil chamber of the hydraulic motor through the oil circuit hydraulic lock and the oil circuit; the two oil circuits are respectively connected to the oil tank through the oil circuit safety valve, and are connected to the suction end of the hydraulic pump through the oil suction one-way valve.

[0006] Beneficial results of the utility model:

[0007] The hydraulic motor driven by the electro-hydraulic drive head provided by the utility model has the functional characteristics of low speed and high torque, and can drive the pool cover body.

[0008] The hydraulic motor-driven automatic opening and closing device for the sewage treatment pool cover provided by the utility model can realize automatic control of the sewage treatment pool cover, improve operating efficiency, and eliminate the safety hazards of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of the automatic opening and closing device for sewage treatment pool cover driven by a hydraulic motor of the present invention;

[0010] Figure 2 This is a hydraulic principle diagram of the automatic opening and closing device for the sewage treatment pool cover driven by a hydraulic motor of the utility model;

[0011] In the figure, 1-control cabinet, 2-electro-hydraulic drive head, 3-hydraulic motor, 4-transmission mechanism, 5-sewage treatment tank cover, 6-open position proximity switch, 7-closed position proximity switch, 201-hydraulic pump, 202-motor, 203-forward oil circuit hydraulic lock, 204-forward oil circuit safety valve, 205-forward oil circuit, 206-reverse oil circuit, 207-reverse oil circuit safety valve, 208-oil tank, 209-reverse oil circuit hydraulic lock, 210-forward oil suction check valve, 211-reverse oil suction check valve. DETAILED DESCRIPTION

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 As shown in Figure 2, an embodiment of the utility model provides a hydraulic motor-driven automatic opening and closing device for a sewage treatment pool cover, comprising a control cabinet 1, an electro-hydraulic drive head 2, a hydraulic motor 3, a transmission mechanism 4, a pool cover body 5, an open position proximity switch 6, and a closed position proximity switch 7.

[0014] The rotating shaft of the sewage treatment tank cover 5 is connected to the rotating shaft of the hydraulic motor 3 via a transmission mechanism 4. The fully open and fully closed positions of the sewage treatment tank cover are equipped with open position proximity switches 6 and closed position proximity switches 7. These two proximity switches are connected to the control cabinet 1 via cables. The rear end of the hydraulic motor 3 is equipped with an electro-hydraulic drive head 2, which is connected to the control cabinet 1 via cables.

[0015] The present invention provides a method for controlling a hydraulic motor-driven automatic opening and closing device for a sewage treatment pool cover, the steps of which are as follows:

[0016] In the first step, the control cabinet 1 controls the electro-hydraulic drive head 2 through the cable to provide power for the rotation of the shaft of the hydraulic motor 3.

[0017] In the second step, when the shaft of the hydraulic motor 3 rotates in the positive direction, the shaft of the sewage treatment tank cover is driven to rotate in the positive direction through the transmission mechanism 4, thereby causing the sewage treatment tank cover 5 to rotate in the positive direction. When it rotates to the fully open position, the open position proximity switch 6 sends a signal and transmits it to the control cabinet 1 through the cable. After receiving the signal, the control cabinet 1 controls the electro-hydraulic drive head 2 to stop working through the cable, and the sewage treatment tank cover 5 is fully opened.

[0018] In the third step, when the shaft of the hydraulic motor 3 rotates in the opposite direction, the transmission mechanism 4 drives the shaft of the sewage treatment tank cover to rotate in the opposite direction, thereby causing the sewage treatment tank cover to rotate in the opposite direction. When it rotates to the fully closed position, the closed position proximity switch 7 sends a signal and transmits it to the control cabinet 1 through the cable. After receiving the signal, the control cabinet 1 controls the electro-hydraulic drive head 2 to stop working through the cable, and the sewage treatment tank cover 5 is fully closed.

[0019] like Figure 2 As shown, the electro-hydraulic drive head 2 includes a hydraulic pump 201, a motor 202, a forward oil circuit hydraulic lock 203, a forward oil circuit safety valve 204, a forward oil circuit 205, a reverse oil circuit 206, a reverse oil circuit safety valve 207, an oil tank 208, a reverse oil circuit hydraulic lock 209, a forward oil suction one-way valve 210, and a reverse oil suction one-way valve 211.

[0020] When the sewage pool cover is opened, the motor 202 drives the hydraulic pump 201, and the forward output end of the hydraulic pump 201 is connected to the forward oil chamber of the hydraulic motor 3 through the forward oil circuit hydraulic lock 203 and the forward oil circuit 205; the forward oil circuit 205 is connected to the oil tank 208 through the forward oil circuit safety valve 204, and is connected to the reverse output end of the hydraulic pump 201 (as the forward suction end) through the forward oil suction check valve 210.

[0021] The motor 202 of the electro-hydraulic drive head 2 receives the control signal of the control cabinet 1 and rotates forward. The hydraulic pump 201 rotates forward, and the low-pressure oil is sucked into the hydraulic pump 201 from the oil tank 208 through the forward oil suction check valve 210. The pressure oil discharged by the hydraulic pump 201 flows through the forward oil circuit hydraulic lock 203 and the forward oil circuit safety valve 204, and enters the forward oil chamber of the hydraulic motor 3 through the forward oil circuit 205, so that the hydraulic motor 3 rotates forward. The sewage tank cover is rotated forward and opened by the transmission mechanism 4. After it is fully opened, the forward oil circuit hydraulic lock 203 locks the sewage tank cover in the fully open position. The forward oil circuit safety valve 204 opens and releases pressure when the sewage tank cover is subjected to a large external impact force, thereby protecting the entire device.

[0022] When the sewage pool cover is closed, the motor 202 drives the hydraulic pump 201, and the reverse output end of the hydraulic pump 201 is connected to the reverse oil chamber of the hydraulic motor 3 through the reverse oil circuit hydraulic lock 209 and the reverse oil circuit 206; the reverse oil circuit 206 is connected to the oil tank 208 through the reverse oil circuit safety valve 207, and is connected to the forward output end of the hydraulic pump 201 (as the reverse suction end) through the reverse oil suction check valve 211.

[0023] The motor 202 of the electro-hydraulic drive head 2 receives the control signal of the control cabinet 1 and rotates in the reverse direction. The hydraulic pump 201 rotates in the reverse direction. The low-pressure oil is sucked into the hydraulic pump 201 from the oil tank 208 through the reverse oil suction check valve 211. The pressure oil discharged by the hydraulic pump 201 flows through the reverse oil circuit hydraulic lock 209 and the reverse oil circuit safety valve 207, and enters the reverse oil chamber of the hydraulic motor 3 through the reverse oil circuit 206, causing the hydraulic motor 3 to rotate in the reverse direction. The sewage tank cover is rotated in the reverse direction through the transmission mechanism 4 and the sewage tank cover is closed. After it is fully closed, the reverse oil circuit hydraulic lock 209 locks the sewage tank cover in the fully closed position. The reverse oil circuit safety valve 207 opens and releases pressure when the sewage tank cover is subjected to a large internal impact force, thereby protecting the entire device.

[0024] The utility model discloses a hydraulic motor driven automatic opening and closing device for the sewage treatment pool cover. The device can realize remote automatic opening and closing control of the sewage treatment pool cover through the modular design of the control module, the power module and the transmission module. It has the advantages of simple structure, easy assembly and low cost. It can be remotely operated by a single person, which greatly improves the operating efficiency and eliminates the safety hazards of previous manual operation.

[0025] The hydraulic motor-driven automatic opening and closing device for a sewage treatment pool cover according to the method of the present invention can be modified in various ways by a person skilled in the art based on the above embodiment, while still achieving the objectives of the present invention. However, such modifications are clearly within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic motor driven automatic opening and closing device for a sewage treatment pool cover, characterized in that: It includes a control cabinet, an electro-hydraulic drive head, a hydraulic motor, a transmission mechanism, an open position proximity switch, and a closed position proximity switch. The rotating shaft of the sewage treatment tank cover is connected to the rotating shaft of the hydraulic motor through the transmission mechanism; the tail of the hydraulic motor is connected to the electro-hydraulic drive head; the electro-hydraulic drive head is connected to the control cabinet through a cable; the fully open and fully closed positions of the sewage treatment tank cover are respectively equipped with an open position proximity switch and a closed position proximity switch, and the open position proximity switch and the closed position proximity switch are connected to the control cabinet through a cable.

2. The automatic opening and closing device for sewage treatment pool cover driven by a hydraulic motor according to claim 1, characterized in that: The electro-hydraulic drive head includes a hydraulic pump, a motor, an oil circuit hydraulic lock, an oil circuit safety valve, an oil tank, and an oil suction check valve. The motor drives the hydraulic pump. The forward output end and the reverse output end of the hydraulic pump are respectively connected to the forward oil chamber and the reverse oil chamber of the hydraulic motor through the oil circuit hydraulic lock and the oil circuit; the two oil circuits are respectively connected to the oil tank through the oil circuit safety valve, and are connected to the suction end of the hydraulic pump through the oil suction check valve.

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