Multi-path lubricating system of single-cylinder hydraulic cone crusher

Abstract

The utility model provides a multi-path lubricating system of a single-cylinder hydraulic cone crusher. The multi-path lubricating system comprises a main lubricating system and an auxiliary lubricating system, wherein the main lubricating system comprises a lubricating oil tank, a gear pump, a filtering assembly, a pressure assembly, a temperature sensing assembly and a temperature control assembly; the gear pump pumps lubricating oil into the crusher from the lubricating oil tank through the oil inlet path to lubricate all parts in the crusher, and the lubricating oil is conveyed back to the lubricating oil tank through the oil return path after lubrication; a filter assembly, a pressure assembly, a temperature sensing assembly and a temperature control assembly are arranged on the oil inlet path and the oil return path; the secondary lubricating system comprises a two-way gear pump, a second filtering assembly and a second pressure assembly; the two-way gear pump is used for pumping lubricating oil to a pinion bearing of the crusher through the secondary oil inlet path and the oil inlet path; and a second filtering assembly and a second pressure assembly are arranged on the secondary oil inlet path. According to the utility model, accurate lubrication of the pinion bearing is realized by the secondary oil inlet path through the bidirectional gear pump, and the problems of difficult adjustment of supply, easy rising of oil temperature, insufficient lubrication and the like caused by oil bath lubrication are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lubrication systems, specifically to the technical field of a multi-path lubrication system for a single-cylinder hydraulic cone crusher. BACKGROUND

[0002] In modern industrial equipment, the design and implementation of lubrication systems are crucial to the performance, lifespan, and reliability of the equipment. Especially for equipment that operates under high load and high temperature conditions, such as single-cylinder hydraulic cone crushers, the quality and supply of lubricating oil directly affect the operational efficiency and failure rate of the equipment.

[0003] In existing single-cylinder hydraulic cone crushers, pinion bearing generally adopts oil bath (immersion oil) lubrication, which has the following disadvantages compared to direct lubrication:

[0004] Oil supply is not easy to adjust: In oil bath lubrication, the supply of lubricating oil is not easy to adjust, which may result in too much or too little lubricating oil, affecting the lubrication effect of the bearing.

[0005] Oil temperature rises: During the operation of the bearing, heat is generated between the rolling elements and the oil in the oil tank due to friction. If the speed is too fast, the oil temperature will be too high, especially in high-speed equipment.

[0006] Stirring loss: Oil bath lubrication may cause stirring loss due to the agitation of the bearing during operation, increasing energy consumption and possibly causing the oil temperature to rise.

[0007] Not suitable for high-speed applications: Oil bath lubrication is not suitable for use in high-speed equipment, as the rolling elements will stir the oil in the oil tank during rotation. Therefore, the surface of the oil in the oil tank should not exceed the center of the bearing to prevent the oil temperature from rising due to excessive stirring during rotation.

[0008] Insufficient lubrication: For critical components that require precise control of oil quantity and pressure, oil bath lubrication may not provide sufficient lubrication, as it cannot precisely control oil flow like direct lubrication. CONTENT OF THE INVENTION

[0009] To solve the problem of oil bath lubrication leading to difficulty in adjusting the supply of lubricating oil, and the problem of oil bath lubrication increasing energy consumption and causing the oil temperature to rise.

[0010] The present application relates to a multi-path lubrication system for a single-cylinder hydraulic cone crusher, comprising:

[0011] The main lubrication system comprises a lubricating oil tank, a gear pump, a filter assembly, a first pressure assembly, a temperature sensing assembly and a temperature control assembly; the gear pump pumps lubricating oil from the lubricating oil tank to the crusher through an oil inlet line to lubricate the parts in the crusher, and the lubricating oil is transported back to the lubricating oil tank through an oil return line; the oil inlet line and the oil return line are provided with a filter assembly, a first pressure assembly, a temperature sensing assembly and a temperature control assembly.

[0012] The secondary lubrication system comprises a bidirectional gear pump, a second filter assembly and a second pressure assembly; the bidirectional gear pump pumps lubricating oil to the pinion bearing of the crusher through a secondary oil inlet line via the oil inlet line; the secondary oil inlet line is provided with the second filter assembly and the second pressure assembly.

[0013] Further, the filter assembly comprises a first oil inlet filter and a second oil inlet filter; the first oil inlet filter is arranged on the oil inlet line between the gear pump and the lubricating oil tank; the second oil inlet filter is arranged on the oil inlet line between the gear pump and the oil inlet of the crusher.

[0014] Further, the second pressure assembly is arranged at the transmission shaft of the crusher, and the second pressure assembly is electrically connected with a safety valve arranged between the bidirectional gear pump and the second oil inlet filter.

[0015] Further, the second filter assembly is arranged between the second pressure assembly and the bidirectional gear pump.

[0016] Further, the first and second pressure assemblies each comprise a pressure switch and a pressure gauge; the pressure switch of the first pressure assembly is electrically connected with the gear pump, and the pressure switch of the second pressure assembly is electrically connected with the bidirectional gear pump.

[0017] Further, the temperature sensing assembly comprises an oil return temperature sensing unit, an oil inlet temperature sensing unit and a lubricating oil tank temperature sensing unit; the oil return temperature sensing unit is arranged on the oil return line, the oil inlet temperature sensing unit is arranged on the oil inlet line, and the lubricating oil tank temperature sensing unit is arranged on the lubricating oil tank.

[0018] Further, the oil return temperature sensing unit is electrically connected with the gear pump; the oil inlet temperature sensing unit is electrically connected with the air cooler; and the lubricating oil tank temperature sensing unit is electrically connected with an alarm.

[0019] Further, the second oil inlet filter and the second filter assembly are each connected with a filter blockage transmitter.

[0020] Further, the lubricating oil tank is further provided with a liquid level gauge.

[0021] Further, the secondary oil inlet path and the oil inlet path are provided with a one-way valve between the oil inlet path and the crusher.

[0022] Compared with the prior art, the beneficial results of the utility model lie in:

[0023] The utility model discloses a gear pump pumps lubricating oil from the lubricating oil tank to the crusher through the oil inlet path, lubricates various main parts (including the bearing between the eccentric shaft bushing and the main shaft and the bearing between the lower housing bushing and the eccentric shaft), and then the lubricating oil returns to the lubricating oil tank through the oil return path.

[0024] The utility model discloses a bidirectional gear pump realizes accurate lubrication of the pinion bearing through the secondary oil inlet path, reduces the problems of not easy adjustment, easy oil temperature rise and insufficient lubrication caused by oil bath lubrication. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the attached drawings:

[0026] Figure 1 It is a hydraulic element diagram of a multi-path lubricating system of a single-cylinder hydraulic cone crusher according to the application;

[0027] In the drawings:

[0028] Crusher 10

[0029] Lubricating oil tank 11

[0030] Liquid level meter 111

[0031] Oil inlet path 101

[0032] One-way valve 101a

[0033] Oil return path 102

[0034] Gear pump 12

[0035] Filter assembly 13

[0036] First oil inlet filter 131

[0037] Second oil inlet filter 132

[0038] Plug transmitter 132a for filter

[0039] Pressure switch 141

[0040] Pressure gauge 142

[0041] Oil return temperature sensing unit 151

[0042] Oil inlet temperature sensing unit 152

[0043] Lubricating oil tank temperature sensing unit 153

[0044] Air cooler 161

[0045] Heater 162

[0046] Bidirectional gear pump 21

[0047] Second filter assembly 22

[0048] Filter clogging indicator 22a

[0049] Pressure switch 231

[0050] Pressure gauge 232

[0051] Safety valve 230 DETAILED DESCRIPTION

[0052] The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and are not a limitation on the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for ease of description.

[0053] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0054] Figure 1 A multi-path lubrication system of a single-cylinder hydraulic cone crusher of the present application is shown, comprising:

[0055] The main lubrication system comprises a lubricating oil tank 11, a gear pump 12, a filter assembly 13, a first pressure assembly, a temperature sensing assembly, and a temperature control assembly. The gear pump 12 pumps lubricating oil from the lubricating oil tank 11 into the crusher 10 through an oil inlet path 101 to lubricate various parts in the crusher 10. After lubrication, the lubricating oil is transported back to the lubricating oil tank 11 through an oil return path 102. The oil inlet path 101 and the oil return path 102 are provided with a filter assembly 13, a pressure assembly 14, a temperature sensing assembly, and a temperature control assembly.

[0056] The secondary lubrication system comprises a bidirectional gear pump 21, a second filter assembly 22, and a second pressure assembly. The bidirectional gear pump 21 pumps lubricating oil to the pinion bearing of the crusher 10 through a secondary oil inlet path 201 via the oil inlet path 101. The secondary oil inlet path 201 is provided with a second filter assembly 22 and a second pressure assembly.

[0057] The utility model discloses a primary lubrication system pumps lubricating oil from the oil tank to the inside of the crusher 10, lubricates each part, and recycles the used lubricating oil back to the oil tank. In addition, the utility model discloses a secondary lubrication system pumps lubricating oil directly to the pinion bearing of the crusher 10, and the bidirectional gear pump 21 realizes accurate lubricating oil quantity delivery to the pinion bearing, reduces the problems of oil temperature rise and energy consumption caused by traditional oil bath lubrication.

[0058] In a preferred embodiment, as shown in Figure 1 The first oil inlet filter 131 is arranged on the oil inlet path 101 between the gear pump 12 and the lubricating oil tank 11. Specifically, the first oil inlet filter 131 can protect the gear pump 12 from being damaged by impurities or contaminants that may exist in the lubricating oil tank 11. In addition, the first oil inlet filter 131 pre-filters the oil before it is pumped to the crusher 10, ensuring that the oil is clean before entering the gear pump and the subsequent lubrication system. Furthermore, by reducing the contaminants entering the gear pump 12 and the crusher 10, the first oil inlet filter 131 helps to reduce the wear of these components and prolong their service life.

[0059] In a preferred embodiment, the second oil inlet filter 132 is arranged on the oil inlet path 101 between the gear pump 12 and the oil inlet of the crusher 10. Specifically, the second oil inlet filter 132 provides an additional layer of protection during the process of lubricating oil flowing from the gear pump 12 to the crusher 10, ensuring that the oil is further purified before entering the critical components of the crusher 10. By reducing the contaminants entering the crusher, the second oil inlet filter 132 helps to prolong the service life of the equipment and reduce the maintenance of the overall system.

[0060] In a preferred embodiment, the second pressure assembly is arranged at the transmission shaft of the crusher 10, and the second pressure assembly is electrically connected to a safety valve 230 arranged between the bidirectional gear pump 21 and the second oil inlet filter 132. The second pressure assembly monitors the lubricating oil pressure at the transmission shaft of the crusher 10 in real time, ensuring that the lubricating oil system works normally and provides sufficient lubrication for the crusher 10.

[0061] In a preferred embodiment, the second filter assembly 22 is arranged between the second pressure assembly and the bidirectional gear pump 21. The second pressure assembly is located after the filter, which can ensure that the pressure measurement and control are more accurate after the oil is filtered, helping to maintain stable oil pressure. In addition, filtering the oil before it flows to the second pressure assembly can ensure the cleanliness of the oil and reduce the risk of oil path blockage and component wear.

[0062] In a preferred embodiment, as shown in Figure 1As shown, the first pressure assembly includes a pressure switch 141 and a pressure gauge 142; the pressure switch 141 of the first pressure assembly is electrically connected to the gear pump 12, and the pressure gauge 142 instantaneously measures the oil pressure of the oil inlet path 101. Specifically, when the pressure switch 141 reaches the preset pressure value, the pressure switch 141 will send a signal to stop the gear pump 12 from working.

[0063] In a preferred embodiment, as shown in Figure 1 As shown, the second pressure assembly includes a pressure switch 231 and a pressure gauge 232; the pressure switch 231 of the second pressure assembly is electrically connected to the bidirectional gear pump 21, and the pressure gauge 232 instantaneously measures the oil pressure at the transmission shaft; specifically, when the pressure switch 231 reaches the preset pressure value, the pressure switch 231 will send a signal to stop the bidirectional gear pump 21 from working, thereby reducing the oil pressure of the lubricating oil at the transmission shaft; and the bidirectional gear pump 21 can be reversed to a certain extent, so that the lubricating oil from the bidirectional gear pump 21 to the one-way valve 101a flows to the safety valve 230 for pressure relief, thereby instantaneously reducing the oil pressure in the pipeline.

[0064] In a preferred embodiment, the temperature sensing assembly includes an oil return temperature sensing unit 151, an oil inlet temperature sensing unit 152, and a lubricating oil tank temperature sensing unit 153; the oil return temperature sensing unit 151 is arranged in the oil return path 102, the oil inlet temperature sensing unit 152 is arranged in the oil inlet path 101, and the lubricating oil tank temperature sensing unit 153 is arranged in the lubricating oil tank 11.

[0065] In a preferred embodiment, the oil return temperature sensing unit 151 is electrically connected to the gear pump 12; the oil return temperature sensing unit 151 is arranged in the oil return path 102, as shown in Figure 1 The oil return temperature sensing unit 151 is used to monitor the temperature of the lubricating oil; when the oil temperature of the oil return path 102 reaches the set value (the set value is 60°C under normal working conditions, the set value is 65°C under high-temperature working conditions, and the set value is 52°C under low-temperature working conditions), the corresponding protection mechanism is triggered, such as closing the gear pump 12, to prevent damage to the equipment due to excessively high oil temperature;

[0066] As shown in Figure 1 When the oil inlet temperature sensing unit 152 detects that the oil temperature of the oil inlet path 11 reaches the set value (the set value is 42°C under normal working conditions, the set value is 47°C under high-temperature working conditions, and the set value is 35°C under low-temperature working conditions), the air cooler 161 is started to reduce the oil temperature, thereby ensuring that the crusher operates at an appropriate temperature.

[0067] In a preferred embodiment, the lubricating oil tank temperature sensing unit 153 is arranged in the lubricating oil tank 11 to accurately sense the temperature of the lubricating oil tank 11, and when the lubricating oil tank temperature sensing unit 153 monitors the return oil temperature, when the return oil temperature reaches the set value (the set value is 27°C under normal working conditions, 32°C under high temperature working conditions, and 18°C under low temperature working conditions), an alarm is triggered or the auxiliary control system takes corresponding measures.

[0068] In a preferred embodiment, the second oil inlet filter 132 is connected with a filter blockage transmitter 132a, and the second filter assembly 22 is also connected with a filter blockage transmitter 22a.

[0069] In a preferred embodiment, the lubricating oil tank 11 is also provided with a liquid level gauge 111. The liquid level gauge 111 is arranged on the outer wall of the oil tank and is close to the oil inlet to observe the liquid level when oil is added.

[0070] In a preferred embodiment, a one-way valve 101a is arranged between the oil inlet path 101 and the first oil inlet of the crusher 10. The first oil inlet is used to lubricate the thrust bearing and then pressurize the bearings between the eccentric shaft bushing and the main shaft and the bearings between the lower housing bushing and the eccentric shaft. The main function of the one-way valve 101a is to control the oil flow from the oil inlet path 101 to the first oil inlet of the crusher 10, and prevent the oil from flowing in the opposite direction, thereby protecting the hydraulic system from backflow. The one-way valve 101a can prevent the reverse rotation of the gear pump 12 when the load decreases, thereby protecting it from damage.

[0071] In a preferred embodiment, a one-way valve 201a is arranged between the secondary oil inlet path 201 and the second oil inlet of the crusher 10. The second oil inlet is used to supply oil to the top of the pinion shaft, thereby achieving oil supply to the pinion. The main function of the one-way valve 201a is to control the oil flow from the secondary oil inlet path 201 to the second oil inlet of the crusher 10, and prevent the oil from flowing in the opposite direction, thereby reducing the impact of backflow on the secondary oil inlet path 201 and the connected hydraulic elements.

[0072] In a preferred embodiment, as shown in Figure 1 The temperature control assembly includes an air cooler 161 and a heater 162. The air cooler 161 is arranged on the oil inlet path 101 between the gear pump 12 and the oil inlet temperature sensing unit 152. The heater 162 is arranged on the lubricating oil tank 11. The function of the air cooler 161 is to lower the oil temperature by cooling the oil before it enters the gear pump 12, to ensure that the oil is at an appropriate temperature before it enters the gear pump 12 and the subsequent lubrication system. The function of the heater 162 is to heat the oil in the lubricating oil tank 11 when needed, to maintain the flowability and lubrication performance of the oil in a low temperature environment.

[0073] The above description is merely the preferred embodiments of the present application and the technical principles used. It should be understood by those skilled in the art that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by the combinations of the above technical features or equivalent features without departing from the above utility model concept. For example, the above features are replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A multi-way lubrication system for a single-cylinder hydraulic cone crusher, characterized in that: The main lubrication system includes a lubricating oil tank, a gear pump, a filter assembly, a first pressure assembly, a temperature sensing assembly, and a temperature control assembly. The gear pump pumps lubricating oil from the lubricating oil tank into the crusher through an oil inlet line to lubricate various parts in the crusher. After lubrication, the lubricating oil is transported back to the lubricating oil tank through an oil return line. The oil inlet line and the oil return line are provided with a filter assembly, a first pressure assembly, a temperature sensing assembly, and a temperature control assembly. A secondary lubrication system includes a bidirectional gear pump, a second filter assembly and a second pressure assembly; the bidirectional gear pump pumps the lubricating oil to the pinion bearing of the crusher through a secondary oil inlet line via the oil inlet line; the second filter assembly and the second pressure assembly are provided on the secondary oil inlet line.

2. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The filter assembly includes a first oil inlet filter and a second oil inlet filter; the first oil inlet filter is arranged on the oil inlet path between the gear pump and the lubricating oil tank; the second oil inlet filter is arranged on the oil inlet path between the gear pump and the oil inlet of the crusher.

3. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 2, characterized in that: The second pressure component is arranged at the transmission shaft of the crusher. The second pressure component is electrically connected to a safety valve. The safety valve is arranged between the bidirectional gear pump and the second oil inlet filter.

4. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The second filter assembly is arranged between the second pressure assembly and the bidirectional gear pump.

5. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The first and second pressure components each include a pressure switch and a pressure gauge; the pressure switch of the first pressure component is electrically connected to the gear pump, and the pressure switch of the second pressure component is electrically connected to the gear pump. The bidirectional gear pump is electrically connected.

6. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The temperature sensing component includes an oil return temperature sensing unit, an oil inlet temperature sensing unit and a lubricating oil tank temperature sensing unit; the oil return temperature sensing unit is arranged on the oil return line, the oil inlet temperature sensing unit is arranged on the oil inlet line, and the lubricating oil tank temperature sensing unit is arranged on the lubricating oil tank.

7. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 6, characterized in that: The return oil temperature sensing unit is electrically connected to the gear pump; the inlet oil temperature sensing unit is electrically connected to the air cooler; and the lubricating oil tank temperature sensing unit is electrically connected to an alarm.

8. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 2, characterized in that: The second oil inlet filter and the second filter assembly are both connected to a filter blockage indicator.

9. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 1, characterized in that: The lubricating oil tank is also provided with a liquid level gauge.

10. The multi-channel lubrication system for a single-cylinder hydraulic cone crusher according to claim 2, characterized in that: A one-way valve is provided between the secondary oil inlet and the oil inlet and the crusher.

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