CN214495549U

CN214495549U - Brake of mining haulage winch

Info

Publication number: CN214495549U
Application number: CN202022583333.5U
Authority: CN
Inventors: 王伟峰
Original assignee: Henan Geng Fa Machinery Manufacturing Co ltd
Current assignee: Henan Geng Fa Machinery Manufacturing Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-10-26
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to a mining haulage winch stopper, including brake block, brake seat, brake arm, pneumatic cylinder and hydraulic control unit, two brake arm one end are articulated with the piston rod of pneumatic cylinder respectively, and the other end articulates on the brake seat, the equal fixed brake block in one side that two brake seats are close to each other, the oil feed and the play oil of hydraulic control unit control pneumatic cylinder, and then make the pneumatic cylinder drive opening and shutting of brake block. According to the technical scheme, the hydraulic cylinder drives the brake pad, the hydraulic driving force is large, the braking performance is good, the hydraulic control unit adopts two sets of braking loops, one set of electromagnetic control system controls an electromagnetic valve to control an oil way to a brake cylinder, and the opening and closing of the brake are controlled through an operating console button; one set is a hydraulic manual control device, an oil path is controlled by a manual reversing valve to a hydraulic cylinder, and a remote pressure regulating valve is used for controlling the opening and closing of a brake.

Description

Brake of mining haulage winch

Technical Field

The utility model relates to a mining haulage winch, in particular to mining haulage winch stopper.

Background

The mining haulage winch is mechanical equipment which uses a steel wire rope wound on a winding drum to pull a load to move, when the winch runs, the braking performance is very important, how to improve the braking performance and ensure that the winch can still completely brake in an accident state or in an emergency situation, and the technical staff in the field need to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mining haulage winch stopper.

In order to achieve the purpose, the utility model provides a mining haulage winch brake, including brake block, brake seat, brake arm, pneumatic cylinder and hydraulic control unit, the brake arm is two, two the brake arm symmetry sets up, two brake arm one end respectively with the piston rod of pneumatic cylinder articulates, the other end articulates on the brake seat, two the brake seat one side that is close to each other all fixes the brake block, hydraulic control unit control the oil feed and the play oil of pneumatic cylinder, and then make the pneumatic cylinder drive the opening and shutting of brake block; the hydraulic control unit comprises an oil tank, a hydraulic pump, a reversing valve and a remote pressure regulating valve, wherein the suction end of the hydraulic pump is connected with the oil tank through an oil pipe, the output end of the hydraulic pump is connected with an oil inlet of the reversing valve through a pipeline, an oil outlet of the reversing valve is connected with an oil inlet of a hydraulic cylinder through a first oil duct, an oil return opening of the hydraulic pump is connected with the oil tank through a pipeline, and the remote pressure regulating valve is connected to the first oil duct through a branch pipeline.

The technical scheme of the mining haulage winch brake further comprises brake arm seats, the two brake arm seats are respectively fixed on one sides, close to each other, of the two brake arms, and a plurality of fixing holes are formed in the two brake arm seats.

Furthermore, the number of the reversing valves is two, the two reversing valves are respectively connected with the corresponding hydraulic pumps through pipelines, and oil outlets of the two reversing valves are respectively connected with the first oil duct through pipelines.

Furthermore, one of the two reversing valves is an electromagnetic reversing valve, and the other one of the two reversing valves is a manual reversing valve.

Furthermore, a filter and a one-way valve for placing hydraulic oil confluence are arranged on a pipeline between the output end of the hydraulic pump and the corresponding reversing valve.

Further, a pressure reducing valve is connected to the pipe between the check valve and the filter through a branch pipe.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model discloses mining haulage winch stopper passes through the pneumatic cylinder drive brake block, and hydraulic drive power is big, and brake performance is good, and hydraulic control unit adopts two sets of braking circuit, and one set of electromagnetic control system is controlled the solenoid valve control oil circuit by electrical system to the checking cylinder, controls opening and shutting of stopper through the operation panel button; one set is a hydraulic manual control device, an oil path is controlled by a manual reversing valve to a hydraulic cylinder, and a remote pressure regulating valve is used for controlling the opening and closing of a brake. The hydraulic station is an important safety and control part of the haulage winch, and the hydraulic station and the brake are combined to form a set of complete brake system, so that pressure oil with stable flow and linearly adjustable pressure is provided for the brake, the winch is braked to obtain different brake torques, and the winch is enabled to normally operate, regulate speed and stop. In an accident state (including power failure of the whole mine), hydraulic oil of the brake can return to the oil tank all at once, so that the brake can reach a complete braking state.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the figure:

FIG. 1 is a schematic perspective view of the brake of the mining haulage winch of the present invention;

fig. 2 is a hydraulic control schematic diagram of the mining haulage winch brake of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be embodied in many different forms and covered by the claims.

Referring to fig. 1 and 2 below and describing in detail the utility model discloses a mining haulage winch stopper of a preferred embodiment, including brake block 4, brake seat 3, brake arm 2, pneumatic cylinder 1 and hydraulic control unit, brake arm 2 is two, and 2 symmetries of two brake arms set up, and 2 one ends of two brake arms are articulated with the piston rod of pneumatic cylinder 1 respectively, and the other end articulates on brake seat 3, and the one side that two brake seats 3 are close to each other all fixes brake block 4, so design, through opening and shutting of the flexible drive brake block of pneumatic cylinder piston rod. The hydraulic control unit controls oil inlet and oil outlet of the hydraulic cylinder, and the hydraulic cylinder drives the brake pad to open and close. The mining haulage winch brake of this embodiment further includes the brake arm seat 5, and two brake arm seats 5 are fixed respectively in the one side that two brake arms 2 are close to each other, have seted up a plurality of fixed orificess 6 on two brake arm seats, set up the oil pipe that the fixed orifices is convenient for fix the hydraulic control unit.

The hydraulic control unit of this embodiment includes oil tank, hydraulic pump, switching-over valve and remote air-vent valve, and the suction end of hydraulic pump passes through oil pipe and links to each other with the oil tank, and its output passes through the pipe connection the switching-over valve oil inlet, the switching-over valve oil-out passes through first oil duct connection the oil inlet of hydro-cylinder, its oil return opening passes through the pipeline and is connected with the oil tank, remote air-vent valve passes through protruding lateral conduit and connects on first oil duct. As shown in fig. 2: the hydraulic control unit of this embodiment includes two braking return circuits, wherein, hydraulic pump 01, switching-over valve 11 and pneumatic cylinder form a braking return circuit, the suction section and the oil tank of hydraulic pump 01 are connected, this hydraulic pump 01 passes through motor 03 drive, the hydraulic pump output passes through pipe connection switching-over valve 11, be provided with filter 05 on the pipeline of switching-over valve 11 and hydraulic pump 01, prevent during impurity among the hydraulic oil gets into the pneumatic cylinder, it has check valve 09 to concatenate on the pipeline between the export of filter 05 and switching-over valve 11 simultaneously, prevent the hydraulic oil backward flow. The outlet of the reversing valve 11 is connected with the first oil channel 14 through a pipeline, the first oil channel 14 is connected with the oil inlet of the hydraulic cylinder, and the first oil channel 14 is connected with the remote pressure regulating valve 13 through a branch pipe, wherein the remote pressure regulating valve is not limited to a pressure reducing valve, and the pressure reducing valve is adopted in the embodiment. When the remote pressure regulating valve closes, the system oil pressure rises. Opening a brake by the brake; when the remote pressure regulating valve is opened, the system oil pressure drops. Closing a brake; when the remote pressure regulating valve is completely opened, the oil pressure of the system is the lowest and is residual pressure, and the winch is in a complete braking state. Therefore, a winch driver can change the oil pressure through a remote pressure regulating valve, and the aim of regulating the braking torque is fulfilled. When the system fails, such as power failure of the whole mine, the winch needs to realize emergency braking. At the moment, the remote pressure regulating valve is required to be regulated to be in an opening state, the oil pressure unloading and returning oil tank brake of the system is in a closing state, and the oil pressure is reduced to zero to realize braking. A one-way throttle valve 15 is connected in series to a pipe between the directional valve 11 and the first oil passage 14, and is used to regulate the flow rate of hydraulic oil in the oil pipe. The other brake loop comprises a hydraulic pump 0201 and a reversing valve 12, the suction section of the hydraulic pump 02 is connected with an oil tank, the hydraulic pump 02 is driven by a motor 0403, the output end of the hydraulic pump 02 is connected with the reversing valve 12 through a pipeline, a filter 06 is arranged on the pipeline between the reversing valve 12 and the hydraulic pump 02 to prevent impurities in hydraulic oil from entering a hydraulic cylinder, and a one-way valve 10 is connected in series on the pipeline between the outlet of the filter 06 and the reversing valve 12 to prevent the hydraulic oil from flowing back. An outlet of the reversing valve 12 is connected with the first oil channel 14 through a pipeline, and a one-way throttle valve 16 is connected in series on a pipeline between the reversing valve 12 and the first oil channel 14. The pipeline of the one-way valve 09 and the pipeline of the filter 05 and the pipeline between the one-way valve 10 and the filter 06 are respectively connected with a pressure reducing valve 07 and a pressure reducing valve 08 through branch pipes, one of a reversing valve 11 and a reversing valve 12 is an electromagnetic reversing valve, the other is a manual reversing valve, the reversing valve 11 is used as the electromagnetic reversing valve, the reversing valve 12 is the manual reversing valve and is designed into two braking loops, one reversing valve is manual, the other is electromagnetic driving, one set of electromagnetic control system controls an electromagnetic valve to control an oil path to a brake cylinder through an electric control system, and the opening and closing of the brake are controlled through an operation console button; one set is a hydraulic manual control device, an oil path is controlled by a manual reversing valve to the oil cylinder, and the opening and closing of a brake are controlled by a remote pressure regulating valve. When the system works normally, the electromagnet (manual reversing valve) is electrified (reversed), and enters the disc brake through the electromagnetic valve and the throttle valve respectively; a winch driver can realize the change of oil pressure through a remote pressure regulating valve, thereby achieving the purpose of regulating the braking torque; when the system fails, such as power failure of the whole mine, the winch needs to realize emergency braking. At the moment, the remote pressure regulating valve is required to be regulated to be in an opening state, the oil pressure unloading and returning oil tank brake of the system is in a closing state, and the oil pressure is reduced to zero to realize braking.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The mining haulage winch brake comprises a brake pad, two brake bases, two brake arms, a hydraulic cylinder and a hydraulic control unit, and is characterized in that the two brake arms are symmetrically arranged, one ends of the two brake arms are respectively hinged with a piston rod of the hydraulic cylinder, the other ends of the two brake arms are hinged on the brake bases, the brake pad is fixed on one surface, close to each other, of the two brake bases, and the hydraulic control unit controls oil inlet and outlet of the hydraulic cylinder, so that the hydraulic cylinder drives the brake pad to open and close; the hydraulic control unit comprises an oil tank, a hydraulic pump, a reversing valve and a remote pressure regulating valve, wherein the suction end of the hydraulic pump is connected with the oil tank through an oil pipe, the output end of the hydraulic pump is connected with an oil inlet of the reversing valve through a pipeline, an oil outlet of the reversing valve is connected with an oil inlet of a hydraulic cylinder through a first oil duct, an oil return opening of the hydraulic pump is connected with the oil tank through a pipeline, and the remote pressure regulating valve is connected to the first oil duct through a branch pipeline.

2. The mining haulage winch brake of claim 1, further comprising a brake arm base, wherein the two brake arm bases are respectively fixed to the sides of the two brake arms close to each other, and a plurality of fixing holes are formed in the two brake arm bases.

3. The mining haulage winch brake of claim 1, wherein the number of the reversing valves is two, and the two reversing valves are respectively connected with the corresponding hydraulic pumps through pipelines, and oil outlets of the two reversing valves are respectively connected with the first oil passage through pipelines.

4. The mining haulage winch brake of claim 3, wherein one of the two directional valves is an electromagnetic directional valve and the other is a manual directional valve.

5. The mining haulage winch brake of claim 3, wherein a filter and a check valve for placement of hydraulic oil confluence are disposed on a pipe between the hydraulic pump output and the corresponding directional control valve.

6. The mining haulage winch brake of claim 5, wherein a pressure relief valve is connected to the pipe between the check valve and the filter through a branch pipe.