Automatic lubricating system for hammer crusher bearing

Abstract

The utility model relates to an automatic lubricating system for a bearing, which belongs to the field of coal mine machinery, in particular to an automatic lubricating system for a bearing of a hammer crusher, which comprises a controller, a high-pressure integrated valve block, a pressure sensor, an electromagnetic valve, an oil level sensor, a lubricating pump, a grease distribution valve group, a lubricating grease barrel and a protective box body. According to the automatic lubricating system, the grease injection amount of each lubricating point can be set through the controller, when the electromagnetic valve acts and begins to inject grease, the grease pipelines inject grease in sequence, the grease metering sensor meters the grease injection amount of each path and feeds the grease injection amount back to the controller, and the single-point single-control function of bearing lubrication can be achieved; and the grease injection pipeline fault of the automatic lubricating system can be quickly and accurately positioned, stable operation of the automatic lubricating system is ensured, and the requirements of safe and efficient automatic mining of a mine are met.

Description

Technical Field

[0001] The utility model relates to the field of coal mine machinery, in particular to an automatic lubrication system for hammer crusher bearings. Background Art

[0002] Hammer crushers are widely used in underground coal mines. The quality of bearing lubrication on hammer crushers has a great impact on the performance of the equipment. At present, there are usually two types of bearing lubrication systems for hammer crushers: one is to manually add grease regularly using a manual pump, which requires stopping the machine for refilling and has a low degree of automation; the other is to automatically lubricate the bearings through a lubrication pump. During the operation of the automatic lubrication system, if the safety valve sprays oil to release pressure, the fault part of the lubrication system cannot be quickly located. It is necessary to stop the machine and carefully check the blockage of each grease injection pipeline. Problems are time-consuming and labor-intensive. At the same time, automatic lubrication of multiple branches simultaneously replenishes grease, which is not based on the actual operation of the branches and bearings. It is easy to have the problem of unequal grease injection and demand, resulting in insufficient lubrication of some bearings, resulting in damage to the bearings due to ineffective lubrication or excessive grease injection and waste. Summary of the invention

[0003] The utility model provides an automatic lubrication system for hammer crusher bearings. The grease injection amount of each lubrication point can be individually set by a controller, and each lubrication pipeline is greased in turn. The utility model can quickly and accurately locate the fault of the grease injection pipeline of the automatic lubrication system, thereby ensuring the stable operation of the automatic lubrication system and meeting the needs of safe and efficient automated mining in mines.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an automatic lubrication system for hammer crusher bearings, including a controller 1, a high-pressure integrated valve block 2, a pressure sensor 3, a solenoid valve 4, an oil level sensor 5, a lubrication pump 6, a grease distribution valve group 8, a lubricating grease barrel 9 and a protective box 11. The high-pressure integrated valve block 2 has a built-in filter and a high-pressure pressure reducing valve. The grease distribution valve group 8 realizes the individual control function of a certain grease pipeline through the instruction of the controller 1. The lubrication pump 6 is driven by emulsion, and a pressure sensor 3 is set on the emulsion inlet pipeline. An alarm indicator light is set. When the pressure value is lower than the set value, the indicator light flashes and alarms. The grease outlet pipeline is provided with a pressure sensor 3 and an overflow valve to monitor the pressure value at the grease outlet, and an alarm indicator light is set. When it is higher than the set value, the indicator light flashes and alarms, and the overflow valve overflows. The lubricating grease barrel 9 has a built-in oil level sensor 5. A grease metering sensor 7 is set on the grease pipeline to monitor the grease injection amount of each grease pipeline.

[0005] The automatic lubrication system for hammer crusher bearings comprises the following steps: the automatic lubrication system driving source adopts emulsion, the emulsion enters the lubrication pump 6 through the solenoid valve 4 and the high-pressure integrated valve block 2, the controller 1 controls the solenoid valve 4 to change direction at a fixed time, thereby controlling the piston of the lubrication pump 6 to reciprocate, extracting and pressurizing the grease, and the pressurized grease is transported to the grease distribution valve group 8 through the oil pipe, and then transported to each lubrication point through each lubrication branch. The amount of grease injected to each lubrication point can be set by the controller 1. When the solenoid valve 4 is actuated to start grease injection, the grease distribution valve group 8 opens the first grease pipeline, and the grease metering sensor 7 starts to measure the grease injection amount of the first pipeline and feeds back to the controller 1. When the grease injection amount reaches the set value, the grease distribution valve group 8 automatically closes the first grease branch and opens the second grease branch, measures the grease injection amount of the second pipeline and feeds back to the controller 1, and grease is injected in sequence. This grease injection method can realize the "single-point single-control" function of bearing lubrication, that is, the lubrication amount and lubrication time of each point do not interfere with each other, the lubrication amount of each point can be adjusted at will without affecting other lubrication points, and the lubrication amount of each point can be accurately measured at the same time, and all parameters can be uploaded to the controller 1.

[0006] The beneficial effects of the utility model are as follows: the amount of grease injected at each lubrication point can be individually set by a controller, and each lubrication pipeline is injected with grease in turn, and the failure of the grease injection pipeline of the automatic lubrication system can be quickly and accurately located, thereby ensuring the stable operation of the automatic lubrication system and meeting the needs of safe, efficient and automated mining in mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The utility model is a schematic diagram of the structure of an automatic lubrication system for a hammer crusher bearing.

[0008] As shown in the figure, 1. controller, 2. high-pressure integrated valve block, 3. pressure sensor, 4. solenoid valve, 5. oil level sensor, 6. lubrication pump, 7. grease metering sensor, 8. grease distribution valve group, 9. lubricating grease barrel, 10. control line, 11. protective box, P, emulsion inlet, T, emulsion return port. DETAILED DESCRIPTION

[0009] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation schemes: The utility model is an automatic lubrication system for hammer crusher bearings: a high-pressure integrated valve block 2, a pressure sensor 3, a solenoid valve 4, an oil level sensor 5, a lubrication pump 6, a grease metering sensor 7, a grease distribution valve group 8, a lubrication grease barrel 9, and a control line 10 are assembled and integrated in a protective box 11. The solenoid valve 4 is connected to the high-pressure integrated valve block 2, the lubrication pump 6 is fixed on the top of the protective box 11, the high-pressure integrated valve block 2 has a built-in filter and a high-pressure pressure reducing valve, the lubrication grease barrel 9 is placed below the quantitative lubrication pump 6, the lubrication grease barrel 9 has a built-in oil level sensor 5, the emulsion inlet pipeline is provided with a pressure sensor 3, an alarm indicator light is provided, and when the pressure value is lower than the set value, the indicator light flashes to alarm. The grease outlet pipeline is provided with a pressure sensor 3 and an overflow valve, an alarm indicator light is provided, the pressure value at the grease outlet is monitored, and an alarm prompt is given when it is higher than the set value, the overflow valve overflows, and a grease metering sensor 7 is provided to monitor the grease injection amount of the grease pipeline. The solenoid valve 4 , the grease distribution valve group 8 , the pressure sensor 3 , the alarm indicator light, the oil level sensor 5 and the grease metering sensor 7 are all connected to the controller 1 .

[0010] An automatic lubrication system for hammer crusher bearings includes the following steps: the automatic lubrication system driving source uses emulsion, the emulsion enters the lubrication pump 6 through the solenoid valve 4 and the high-pressure integrated valve block 2, the controller 1 controls the solenoid valve 4 to change direction at a fixed time, thereby controlling the piston of the lubrication pump 6 to reciprocate, and the grease in the grease barrel 9 is extracted and pressurized, and the pressurized grease is transported to the grease distribution valve group 8 through the oil pipe, and then transported to each lubrication point through each lubrication branch. The amount of grease injected into each lubrication point can be set by the controller 1. When the solenoid valve 4 is actuated to start grease injection, the grease distribution valve group 8 opens the first grease pipeline, and the grease metering sensor 7 starts to measure the amount of grease injected into the first pipeline and feeds back to the controller 1. When the amount of grease injected reaches the set value, the grease distribution valve group 8 automatically closes the first grease branch and opens the second grease branch, measures the amount of grease injected into the second pipeline and feeds back to the controller 1, and grease is injected in sequence. This grease injection method can realize the "single-point single-control" function of bearing lubrication, that is, the lubrication amount and lubrication time of each point do not interfere with each other, and the lubrication amount of each point can be adjusted at will without affecting other lubrication points. At the same time, the lubrication amount of each lubrication point can be accurately measured, and all parameters can be uploaded to the controller 1.

[0011] It should be understood that the above detailed description of the technical solution of the utility model with the help of preferred embodiments is illustrative rather than restrictive, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic lubrication system for a hammer crusher bearing, comprising a controller (1), a high-pressure integrated valve block (2), a pressure sensor (3), a solenoid valve (4), an oil level sensor (5), a lubrication pump (6), a grease metering sensor (7), a grease distribution valve group (8), a lubrication grease barrel (9), a control line (10) and a protective box (11), characterized in that: The solenoid valve (4) is connected to the high-pressure integrated valve block (2). The lubrication pump (6) is fixed on the top of the protective box (11). The high-pressure integrated valve block (2) has a built-in filter and a high-pressure pressure reducing valve. The lubrication grease barrel (9) is placed below the quantitative lubrication pump (6). The grease distribution valve group (8) realizes the individual control function of a certain grease pipeline through the instruction of the controller (1). The lubrication pump (6) is driven by emulsion. The controller (1) controls the solenoid valve (4). A pressure sensor (3) is provided on the emulsion inlet pipeline. An alarm indicator light is provided. When the pressure value is lower than the set value, the indicator light flashes to alarm. A pressure sensor (3) and an overflow valve are provided on the grease outlet pipeline to monitor the pressure value at the grease outlet. An alarm indicator light is provided. When the pressure value is higher than the set value, the indicator light flashes to alarm and the overflow valve overflows. The lubrication grease barrel (9) has a built-in oil level sensor (5). A grease metering sensor (7) is provided on the grease pipeline to monitor the grease injection amount of each grease pipeline.

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