WO2019062978A1

WO2019062978A1 - System for automatically collecting bearing waste grease and system for automatically replacing grease for bearing

Info

Publication number: WO2019062978A1
Application number: PCT/CN2018/108822
Authority: WO
Inventors: 赵大平; 朱向华; 温志建
Original assignee: 郑州奥特科技有限公司
Priority date: 2017-09-29
Filing date: 2018-09-29
Publication date: 2019-04-04
Also published as: CN107701902A

Abstract

Disclosed are a system for automatically collecting bearing waste grease and a system for automatically replacing grease for a bearing. The system for automatically collecting bearing waste grease of the system for automatically replacing grease for a bearing comprises a bearing structure, wherein a lubrication space used for placing lubricating grease is provided between an outer ring (1) and an inner ring (2) of the bearing structure, the bearing structure is provided with an oil discharge hole (5) conducting with the lubrication space, a suction and discharge device (7) is provided in a communicating manner on the oil discharge hole (5), and the suction and discharge device (7) has an independent power system. Since the suction and discharge device has an independent power system, and has no relation to an injection device, the suction and discharge device can be conveniently started, and the starting frequency of the suction and discharge device can be adjusted and the suction and discharge can be performed according to actual needs in order to ensure that the pressure state inside the bearing structure is reasonable.

Description

Bearing waste grease automatic collecting system and bearing automatic grease changing system

Technical field

The invention relates to a bearing automatic grease changing system for injecting grease into a bearing and extracting aged grease in the bearing. The invention also relates to an automatic collecting and collecting system of bearing waste grease of the bearing automatic fat changing system.

Background technique

There are two main ways to lubricate the bearings. One type of liquid oil is lubricated. These bearings must be placed in the tank. The tank contains oil. This kind of lubrication has good effect and high cleanliness, but it is not suitable for All bearings, because some bearings can not be placed inside the casing, bearings used in wind power equipment, construction machinery, etc. belong to this type of bearing, such bearings need to be lubricated with grease, the viscosity of the grease is large, not easy to flow out In the case where the lubrication space between the inner and outer rings of the bearing is completely closed, the grease will not flow out, but as time goes by, the grease will age and harden, which requires injecting new into the lubrication space. The grease replaces the old grease. In the prior art, the bearing is supplied with grease through the oil supply device, and the oil supply device has a fuel supply pump. The oil supply pump is generally a plunger pump or a gear pump, and the oil supply pump is connected to the block distributor and the distributor. It is connected to each oil inlet on each bearing. With the injection of fresh grease, the old grease after aging will be squeezed out from the oil outlet opened on the bearing structure. In order to prevent the old grease from polluting the environment, a grease collection bottle will be placed on the oil outlet. First, timing It is cumbersome to empty these bottles that are sometimes difficult to access. In addition, there is the risk that if the bottle is not emptied in time, the grease will flow out of the bearing structure uncontrollably. In addition, since the old grease has a large viscosity and a high hardness, it requires a lot of force to extrude it, which causes the pressure of the extruded old grease to be higher than that of the bearing oil seal. The problem of outflow at the oil seal structure, even the new grease with a small viscosity, causes no grease to be collected in the grease collection bottle, and the grease is discharged from the bearing structure. The pollution environment does not mean that the bearing is poorly lubricated. In order to solve this problem, a suction device is designed, which uses a suction device to suck out the old grease. In the prior art, for the balance between the amount of suction and the amount of injection, between injection and suction is used. The interlocking, that is, the power of the infusion device and the suction device is one, simultaneously started and stopped at the same time, thereby ensuring the balance between suction and injection, but this simple interlock is difficult to balance the suction and the The relationship between injections, because if there is no grease inside the bearing, it will cause huge losses, so in order to ensure a certain amount of grease inside the bearing structure, the suction of the suction device Generally, the setting is slightly smaller, and the viscosity of the old grease is larger, and there is a certain amount of evacuation, which causes the problem that the amount of suction is insufficient, which leads to the backlog of the old grease, so that the bearing structure The internal pressure will be too large, and the bearing structure will be destroyed over time. At the same time, even if it is known that the pressure inside the bearing structure is too large, it is impossible to pump old grease.

Summary of the invention

The object of the present invention is to provide an automatic collection system for bearing waste grease to solve the problem that the injection device and the suction device are interlocked in the prior art, and the power of the injection device and the suction device is one, and simultaneously start and stop at the same time, in order to ensure the bearing There is a certain amount of grease inside the structure, and the suction amount of the suction device is slightly smaller, which will damage the bearing structure problem. At the same time, the object of the present invention is to provide an automatic bearing replacement system for the bearing waste oil automatic collecting system.

In order to achieve the above object, the bearing waste oil automatic collecting system of the present invention adopts the following technical scheme: a bearing waste oil automatic collecting system, including a bearing structure, and a lubrication for setting grease between the outer ring and the inner ring of the bearing structure In the space, the bearing structure is provided with an oil outlet which is electrically connected to the lubrication space, and the suction port is connected with the suction and discharge device, and the suction and discharge device has an independent power system.

The bearing structure is further provided with a breathing port.

The bearing waste oil automatic collecting system is further provided with an electric control system capable of detecting the pressure in the lubrication space and starting the power system of the suction and discharge device when the pressure is greater than the set pressure, when the pressure is less than the set pressure Stop the power system of the suction and discharge device.

The electronic control system includes a pressure sensor disposed in the lubrication space and a central controller, and the pressure sensor transmits the detected pressure signal to the central controller, and the central controller can pre-store the received pressure signal The set pressure is compared and the central controller controls the power system of the suction and discharge device to be turned on or off.

The electronic control system includes a pressure switch for detecting a pressure in the lubrication space and a central controller, and the set pressure is set in the pressure switch, and the pressure in the lubrication space detected by the pressure switch reaches the inside thereof. When the pressure is constant, the pressure switch outputs a trigger signal to the central controller to open the power system. When the pressure in the lubrication space detected by the pressure switch is less than the set pressure within the pressure switch, the pressure switch stops outputting the trigger signal, and the central controller The power system that controls the suction and discharge device is stopped.

The suction and discharge device comprises a liposuction device, and the liposuction device comprises a casing, wherein a cavity of the inner cavity of the casing is sealed and slidably provided with a plunger, and the other end of the casing is provided with an oil discharge port, the oil discharge port and the shell The inner cavity of the body is connected, and the waste oil storage device is connected to the oil discharge port, and a check valve is provided between the oil discharge port and the waste oil storage device, and the side wall of the casing is disposed from the oil discharge port to the waste oil storage device. The upper opening is provided with an oil suction port, and the oil suction port is in communication with the oil outlet, and the plunger is driven to reciprocate by the power device.

An air filtering device is disposed on the breathing port.

A filtering device is arranged between the oil discharge port of the liposuction device and the waste oil storage device.

A bearing automatic grease changing system adopts the following technical solutions:

The utility model relates to an automatic grease changing system for bearings, comprising a bearing structure, a lubricating space for setting grease between the outer ring and the inner ring of the bearing structure, and an oil inlet port and an oil outlet opening for the lubrication structure to be opened on the bearing structure, An oil supply device is arranged in communication with the oil inlet, and a suction and discharge device is arranged in communication with the oil outlet, and the suction and discharge device has an independent power system.

The bearing structure is further provided with a breathing port.

The bearing automatic grease changing system is further provided with an electric control system capable of detecting the pressure in the lubrication space and starting the power system of the suction and discharge device when the pressure is greater than the set pressure, stopping when the pressure is less than the set pressure The power system of the suction and discharge device.

The power device includes a hydraulic cylinder, and the hydraulic cylinder is connected to the power pump through a three-position four-way electromagnetic reversing valve, and the median function of the three-position four-way reversing valve is O-shaped.

The power device includes a hydraulic cylinder connected to the power pump through a two-position four-way electromagnetic reversing valve.

The hydraulic cylinder is integrally provided with the lipolyzer, and the housing of the hydraulic cylinder is integrally provided with the housing of the lipoiser, and the piston of the hydraulic cylinder is connected to the plunger of the lipoiser.

The power unit is an electric push rod.

The electric push rod is integrally provided with the liposuction device, and the housing of the electric push rod is integrally provided with the housing of the lipolator, and the push rod of the electric push rod is connected with the plunger of the liposuction device.

An oil pressure sensor is disposed in the hydraulic system of the hydraulic cylinder.

A position sensor is disposed on the piston of the hydraulic cylinder.

A current detecting device is provided in the circuit of the electric push rod.

A position sensor is disposed on the moving member of the electric push rod.

An air filtering device is disposed on the breathing port.

The suction and discharge device of the invention has an independent power system, and has no relationship with the device of the injection device, can be conveniently started, adjusts the starting frequency of the suction and discharge device according to actual needs, and performs suction and discharge work according to actual needs to ensure the pressure inside the bearing structure. The status is reasonable.

The bearing structure of the present invention has an oil inlet port, an oil outlet port and a breathing port which are connected to the lubrication space. After the suction device evacuates the grease, the air will enter through the breathing port, and the suction device will not draw grease, and the bearing structure The internal grease will no longer be reduced, and due to the entry of air, the pressure inside the bearing structure will not be lower than the external atmospheric pressure, which can avoid the damage of the bearing structure, not only the amount of grease inside the bearing, but also the inside of the bearing structure. pressure.

The electronic control system of the bearing waste oil automatic collecting system of the invention can detect the pressure in the lubrication space and start the power system of the suction and discharge device when the pressure is greater than the set pressure, and stop the power system of the suction and discharge device when the pressure is less than the set pressure . The pressure inside the bearing structure can be reliably ensured to ensure reliable operation of the bearing structure.

The hydraulic cylinder of the driving device of the suction device of the suction device of the invention is connected with the power pump through the three-position four-way electromagnetic reversing valve, and the middle position function of the three-position four-way reversing valve is O-shaped, when the three-position four-way When the reversing valve is switched between the left and right positions, the piston rod of the hydraulic cylinder performs telescopic movement to drive the liposuction to absorb grease. When the three-position four-way reversing valve is in the neutral position, the hydraulic cylinder is in a pressure-holding state, and the piston remains unchanged. The suction and the liposuction are also in the non-working state, and the three-position four-way reversing valve can conveniently control the working state of the liposuction.

The driving device of the liposuction device of the suction device of the invention is an electric push rod, and the electric rocking push rod has a simple structure and the power source is electric power, which is a clean energy source and can meet environmental requirements.

The air filter device is arranged on the breathing port of the bearing structure of the invention, which can ensure that the air entering the inside of the bearing structure is clean air and prevent pollutants from entering the bearing structure to contaminate the grease.

DRAWINGS

1 is a schematic view showing the overall structure of an embodiment of a bearing waste oil automatic collecting system of the present invention;

Figure 2 is a schematic view showing the overall structure of an embodiment of the bearing automatic fat changing system of the present invention;

Figure 3 is a schematic structural view of Embodiment 1 of the liposuction device of Figure 2;

Figure 4 is a schematic structural view of Embodiment 2 of the liposuction device of Figure 2;

Figure 5 is an electrical schematic diagram of a pressure sensor inside the bearing structure of the present invention;

Figure 6 is an electrical schematic diagram of a pressure switch inside the bearing structure of the present invention;

Figure 7 is an electrical schematic diagram of a single chip microcomputer of the bearing structure of the present invention;

Figure 8 is an electrical schematic diagram of the single-chip controlled motor of Figure 7;

DESCRIPTION OF REFERENCE NUMERALS: 1-outer ring; 2-inner ring; 3-breathing port; 4-inlet port; 5-out port; 7-lipter; 8-shell; 9-plunger; 10- Oil discharge port; 11-valve; 12-valve; 13-return spring; 15--suction port; 16-supply pump; 17-three-position four-way reversing valve; 18-motor; 19-power pump; Dispenser; 21-inlet and outlet; 22-piston.

Detailed ways

Embodiment 1 of a bearing waste oil automatic collecting system, in FIG. 1, FIG. 5 and FIG. 7, combined with FIG. 2, the bearing structure in this embodiment is a sliding bearing, and no rolling body, outer ring 1 and inner ring are provided. 2 and the oil seals at both ends form a lubrication space, and the lubrication space is used to set the grease. The oil inlet 4, the oil outlet 5 and the breathing port 3 are opened on the outer ring 1 of the bearing structure, and the oil inlet 4, the oil outlet 5 and the breathing port 3 are all electrically connected to the lubrication space. The oil inlet port 4 is uniformly disposed on the bearing structure, and an oil outlet port 5 or a breathing port 3 is disposed between the adjacent two oil inlet ports 4, and one of the oil inlet ports 4 is oiled on one side of the oil inlet port 4 The mouth is the other, and the other is the breathing port 3. An air filtering device is provided on the breathing port 3.

A suction and discharge device is arranged in communication with the oil outlet 5, wherein the suction and discharge device is a liposuction device 7. As shown in FIG. 3, the liposuction device 7 has a housing 8 which is sealed and slidably provided at one end of the inner cavity of the housing 8. 9. The other end of the casing 8 is provided with an oil discharge port 10, and the oil discharge port 10 communicates with the inner cavity of the casing 8. The oil discharge port 10 is used for connecting the waste oil storage device. The waste oil storage device is not shown in the drawing, and the waste oil storage device may be a waste oil drum as long as it has a waste oil storage space. A one-way valve structure is integrally disposed on the end of the casing 8 adjacent to the oil discharge port 10. The one-way valve structure shares the casing with the grease absorber 7, and the valve body 11 of the one-way valve structure is slidably assembled on the casing 8. A return spring 13 is disposed between the valve body 11 and the valve seat 12 fixed to the housing 8. The valve core 11 seals the oil discharge port 10 under the action of the return spring 13, and has a conversion on the housing 8. The port is connected to the inner cavity of the casing 8 on the other side of the spool 11 different from the oil discharge port, that is, the switching port is connected to the oil discharge port through a one-way valve structure, and the waste oil storage device Directly connected to the conversion port, that is to say, there is a one-way valve between the oil discharge port and the waste oil storage device, and the one-way valve allows the oil to flow from the oil discharge port to the waste oil storage device, at the oil discharge port of the grease absorber and A filter device is also arranged between the waste oil storage devices. Because of the existence of the conversion port, the filter device is directly disposed between the conversion port and the waste oil storage device. The filtering device is used for on-line observation of the content of impurities in the waste grease, that is, the grease detecting device can be connected to the filtering device, and the grease detecting device is an online grease detecting system, and the detecting parameters include the impurity content of the oil and the metal elements such as iron. The content is a prior art. An oil suction port 15 is opened on the side wall of the casing 8, and the oil suction port 15 communicates with the oil outlet of the bearing structure, and the plunger 9 is driven to reciprocate by the power unit. The power device in this embodiment is a hydraulic oil cylinder, and the hydraulic oil cylinder is also integrated on the grease suction device 7, that is, the same housing is shared with the grease suction device 7, and the piston 22 of the hydraulic oil cylinder is connected with the plunger 9, the piston The diameter of 22 is larger than the diameter of the plunger 9, and the inlet and outlet ports 21 that cooperate with the piston are formed in the housing 8. The power pump 19 of the hydraulic cylinder is independent and is not shared with any equipment structure, that is, the suction and discharge device has an independent power system, and the power pump is driven by the motor.

There is also a pressure sensor in the lubrication space of the bearing structure. As shown in Fig. 5, the pressure sensor is a CYYZ51 flat model pressure transmitter, and the pressure sensor transmits the detected pressure signal to the central controller, where the central control is performed. The device is a single-chip microcomputer. As shown in FIG. 7, the central controller can compare the received pressure signal with a preset pressure previously stored therein, and the central controller controls the power system of the suction and discharge device to be turned on or off. Since the CYYZ51 flat model pressure transmitter outputs a 485 signal, it needs to be transformed. This is a standard transformation. Figure 5 is the 485 signal conversion electrical diagram of the pressure sensor. The transformed structure can be connected with the corresponding connector on the single-chip microcomputer, that is, the 485_RX, 485_CON, 485_TX interface in Figure 5 and the 485_RX on the microcontroller in Figure 7, 485_CON, 485_TX are connected. The single-chip microcomputer controls the motor through the relay, which is also a conventional control mode. Figure 8 is the control circuit, in which the motor terminals are respectively connected with the positive and negative poles of the motor, and the control signals of Relay_Z and Relay_F are respectively relay_Z of the single-chip microcomputer. It is connected to the Relay_F port, and the function of the MCU is realized by programming, which has the function of comparing the received pressure signal with the preset pressure previously stored therein, and controlling the opening or stopping of the power system of the suction and discharge device according to the result. . When the single-chip microcomputer receives the pressure greater than the pressure set therein, the power system of the suction and discharge device is controlled to be turned on, and vice versa, the power system of the suction and discharge device is stopped.

Embodiment 2 of a bearing waste oil automatic collecting system. In FIG. 6, the difference between this embodiment and Embodiment 1 is that a pressure switch is disposed in the lubrication space of the bearing structure, and a setting is set inside the pressure switch. Pressure, when the pressure in the lubrication space detected by the pressure switch reaches the set pressure within it, the pressure switch outputs a trigger signal to the central controller, and the central controller controls the power system of the suction and discharge device to be turned on, and the lubrication detected by the pressure switch When the pressure in the space is less than the set pressure within it, the pressure switch stops outputting the trigger signal, and the central controller controls the power system of the suction and discharge device to stop. The circuit diagram of the pressure sensor is as shown in Fig. 6. The ports OILMEASU, OILLEVEL, OILPRESS, and AIRPRESS are respectively connected with the corresponding ports of the single chip microcomputer in Fig. 7, and the single chip microcomputer also controls the motor through the relay, as shown in Fig. 8, wherein The motor terminals are respectively connected to the positive and negative terminals of the motor, and the control signals of Relay_Z and Relay_F are respectively connected with the Relay_Z and Relay_F ports of the single chip microcomputer, and the functions of the single chip microcomputer are also realized by programming.

Embodiment 3 of the bearing waste oil automatic collecting system, the difference between this embodiment and Embodiment 1 is that an oil pressure sensor is provided in the hydraulic system of the hydraulic cylinder.

Embodiment 4 of a bearing waste oil automatic collecting system, the difference between this embodiment and Embodiment 1 is that a position sensor is disposed on the piston of the hydraulic cylinder.

The liposuction device of the bearing waste oil automatic collecting system in the above embodiment can also be driven by a pneumatic cylinder, and the pneumatic cylinder and the hydraulic cylinder are equivalent technical features.

Embodiment 1 of a bearing automatic grease changing system, in FIGS. 2, 5 and 7, the bearing in the bearing structure of the bearing automatic grease changing system is a sliding bearing, no rolling body is provided, the outer ring 1 and the inner ring 2 The oil seals at both ends form a lubrication space, and the lubrication space is used to set the grease. The oil inlet 4, the oil outlet 5 and the breathing port 3 are opened on the outer ring 1 of the bearing structure, and the oil inlet 4, the oil outlet 5 and the breathing port 3 are all electrically connected to the lubrication space. The oil inlet port 4 is uniformly disposed on the bearing structure, and an oil outlet port 5 or a breathing port 3 is disposed between the adjacent two oil inlet ports 4, and one of the two sides of the oil inlet port 4 is out. The oil port and the other is the breathing port 3. An air filtering device is provided on the breathing port 3.

An oil supply device is disposed in the oil inlet 4, and the oil supply device has an oil supply pump 16. The oil outlet of the oil supply pump 16 is connected with a distributor 20, and each outlet of the distributor 20 is respectively connected with the oil inlet port to fill the bearing structure. .

A suction and discharge device is arranged in communication with the oil outlet 5, wherein the suction and discharge device is a liposuction device 7. As shown in FIG. 3, the liposuction device 7 has a housing 8 which is sealed and slidably provided at one end of the inner cavity of the housing 8. 9. The other end of the casing 8 is provided with an oil discharge port 10, and the oil discharge port 10 communicates with the inner cavity of the casing 8. The oil discharge port 10 is used for connecting the waste oil storage device. The waste oil storage device is not shown in the drawing, and the waste oil storage device may be a waste oil drum as long as it has a waste oil storage space. A one-way valve structure is integrally disposed on the end of the casing 8 adjacent to the oil discharge port 10. The one-way valve structure shares the casing with the grease absorber 7, and the valve body 11 of the one-way valve structure is slidably assembled on the casing 8. A return spring 13 is disposed between the valve body 11 and the valve seat 12 fixed to the housing 8. The valve core 11 seals the oil discharge port 10 under the action of the return spring 13, and has a conversion on the housing 8. The port is connected to the inner cavity of the casing 8 on the other side of the spool 11 different from the oil discharge port, that is, the switching port is connected to the oil discharge port through a one-way valve structure, and the waste oil storage device It is directly connected to the conversion port, that is to say, there is a one-way valve between the oil discharge port and the waste oil storage device, and the one-way valve allows the oil to flow from the oil discharge port to the waste oil storage device on the side wall of the casing 8. An oil suction port 15 is opened, and the oil suction port 15 is in communication with the oil outlet of the bearing structure, and the plunger 9 is driven to reciprocate by the power unit. The power device in this embodiment is a hydraulic oil cylinder, and the hydraulic oil cylinder is also integrated on the grease suction device 7, that is, the same housing is shared with the grease suction device 7, and the piston 22 of the hydraulic oil cylinder is connected with the plunger 9, the piston The diameter of 22 is larger than the diameter of the plunger 9, and the inlet and outlet ports 21 that cooperate with the piston are formed in the housing 8. The power pump of the hydraulic cylinder is independent and is not shared with any equipment structure, that is to say, the suction and discharge device has an independent power system. As shown in Fig. 2, a three-position four-way reversing valve 17 is arranged between the hydraulic cylinder and the power pump, and the middle position function of the three-position four-way reversing valve 17 is O-shaped.

There is also a pressure sensor in the lubrication space of the bearing structure. As shown in Fig. 5, the pressure sensor is a CYYZ51 flat model pressure transmitter, and the pressure sensor transmits the detected pressure signal to the central controller, where the central control is performed. The device is a single-chip microcomputer. As shown in FIG. 7, the central controller can compare the received pressure signal with a preset pressure previously stored therein, and the central controller controls the power system of the suction and discharge device to be turned on or off. Since the CYYZ51 flat model pressure transmitter outputs the 485 signal master control system, it is necessary to transform the signal, which is a standard conversion. Figure 5 is the 485 signal conversion electrical diagram of the pressure sensor. The transformed structure can be connected with the corresponding connector on the single-chip microcomputer, that is, the 485_RX, 485_CON, 485_TX signals in Figure 5 and the 485_RX on the microcontroller in Figure 7, 485_CON, 485_TX are connected. The single-chip microcomputer controls the motor through the relay, which is also a conventional control mode. Figure 8 is the control circuit, in which the motor terminals are respectively connected with the positive and negative poles of the motor, and the Relay_Z and Relay_F signals are respectively relay_Z and Relay_F of the single-chip microcomputer. The ports are connected, and the function of the single chip microcomputer is realized by programming, which has the function of comparing the received pressure signal with the set pressure previously stored therein, and controlling the power system of the suction and discharge device to be turned on or off according to the structure. When the single-chip microcomputer receives the pressure greater than the pressure set therein, the power system of the suction and discharge device is controlled to be turned on, and vice versa, the power system of the suction and discharge device is stopped.

Embodiment 2 of a bearing automatic fat changing system, in FIG. 6, the difference between the embodiment and the bearing automatic fat changing system embodiment 1 is that a pressure switch is disposed in the lubrication space of the bearing structure, and the pressure switch is The internal setting has a set pressure. When the pressure in the lubrication space detected by the pressure switch reaches the set pressure therein, the pressure switch outputs a trigger signal to the central controller, and the central controller controls the power system of the suction and discharge device to be opened, under pressure When the pressure in the lubrication space detected by the switch is less than the set pressure within it, the pressure switch stops outputting the trigger signal, and the central controller controls the power system of the suction and discharge device to stop. The circuit diagram of the pressure sensor is as shown in Fig. 6. The ports OILMEASU, OILLEVEL, OILPRESS, and AIRPRESS are respectively connected with the corresponding ports of the single chip microcomputer in Fig. 7, and the single chip microcomputer also controls the motor through the relay, as shown in Fig. 8, wherein The motor terminals are respectively connected to the positive and negative terminals of the motor, and the Relay_Z and Relay_F signals are respectively connected to the Relay_Z and Relay_F ports of the single chip microcomputer, and the functions of the single chip microcomputer are also realized by programming.

Embodiment 3 of a bearing automatic grease changing system. In FIG. 4, the difference between this embodiment and the bearing automatic fat changing system embodiment 1 is that the lipoperiser plunger of the embodiment is driven by an electric push rod. The electric push rod is driven by the motor 18. Here, the motor 18 is a linear motor, and the structure of the liposuction is the same as that of the liposuction device of the first embodiment. A current detecting device is provided in the circuit of the electric push rod.

Embodiment 4 of the bearing automatic fat changing system, the difference between the embodiment and the embodiment 3 of the bearing automatic fat changing system is that a position sensor is disposed on the moving member of the electric push rod.

Embodiment 5 of the bearing automatic fat changing system, the difference between the embodiment and the embodiment 1 of the bearing automatic grease changing system is that an oil pressure sensor is provided in the hydraulic system of the hydraulic cylinder.

Embodiment 6 of the bearing automatic fat changing system, the difference between the embodiment and the bearing automatic fat changing system embodiment 1 is that a position sensor is disposed on the piston of the hydraulic cylinder.

The hydraulic cylinder and the power pump in the embodiment of the bearing automatic grease changing system are connected through a three-position four-way reversing valve, and in other embodiments, through a two-position four-way reversing valve.

The waste oil collecting device in the above embodiment may also be connected to an online oil detecting system. The online oil detecting system is an online grease quality detecting system, and the detecting parameters include the impurity content of the oil and the metal element content such as iron. A prior art.

The liposuction device of the bearing automatic grease changing system in the above embodiment can also be driven by a pneumatic cylinder, and the pneumatic cylinder and the hydraulic cylinder are equivalent technical features.

In the above embodiment, the motor for driving the electric push rod is a linear motor, and in other embodiments, it may be a normal motor, and the rotary motion is converted into a linear motion by a screw drive.

Claims

The utility model relates to an automatic collecting and collecting system for bearing waste oil, which comprises a bearing structure, a lubricating space for setting grease between the outer ring and the inner ring of the bearing structure, an oil outlet opening connected with the lubrication space on the bearing structure, and a connection on the oil outlet A suction and discharge device is provided, characterized in that the suction and discharge device has an independent power system.
The bearing waste oil automatic collecting system according to claim 1, wherein the bearing structure is further provided with a breathing port.
The automatic bearing grease automatic collecting system according to claim 1 or 2, wherein the bearing waste oil automatic collecting system is further provided with an electric control system, and the electric control system can detect the pressure in the lubricating space and at the pressure When the pressure is greater than the set pressure, the power system of the suction and discharge device is activated, and when the pressure is less than the set pressure, the power system of the suction and discharge device is stopped.
The automatic bearing grease automatic collecting system according to claim 3, wherein said electronic control system comprises a pressure sensor disposed in the lubrication space and a central controller, and the pressure sensor transmits the detected pressure signal to the central control. The central controller can compare the received pressure signal with a set pressure previously stored therein, and the central controller controls the power system of the suction and discharge device to be turned on or off.
The automatic bearing grease automatic collecting system according to claim 3, wherein said electronic control system comprises a pressure switch for detecting a pressure in the lubrication space and a central controller, said set pressure being set at the pressure switch Inside, when the pressure in the lubrication space detected by the pressure switch reaches the set pressure therein, the pressure switch outputs a trigger signal to the central controller to open the power system, and the pressure in the lubrication space detected by the pressure switch is less than When the pressure is set within the pressure switch, the pressure switch stops outputting the trigger signal, and the central controller controls the power system of the suction and discharge device to stop.
The automatic bearing and grease collection system according to claim 3, wherein the suction and discharge device comprises a liposuction device, and the liposuction device comprises a housing, and a cavity of the inner cavity of the housing is sealed and slidably provided with a plunger. The other end of the casing is provided with an oil discharge port, and the oil discharge port is connected with the inner cavity of the casing, and the waste oil storage device is arranged to communicate with the oil discharge port, and the oil discharge port and the waste oil storage device are provided with oil discharge The port flows to the one-way valve of the waste oil storage device, and the oil suction port is opened on the side wall of the casing, and the oil suction port is connected with the oil outlet, and the plunger is driven to reciprocate by the power device.
The automatic bearing grease automatic collecting system according to claim 2, wherein the breathing port is provided with an air filtering device.
The automatic bearing and grease collection system according to claim 6, wherein a filter device is arranged in series between the oil discharge port of the liposuction device and the waste oil storage device.
A bearing automatic fat changing system, comprising a bearing structure, a lubricating space for setting grease between the outer ring and the inner ring of the bearing structure, and an oil inlet and an oil outlet connected to the lubrication space on the bearing structure, An oil supply device is arranged in communication with the oil port, and a suction and discharge device is arranged in communication with the oil outlet. The suction and discharge device has an independent power system.
The automatic bearing fat changing system according to claim 9, wherein said bearing structure is further provided with a breathing port.
The automatic bearing fat changing system according to claim 9 or 10, wherein the bearing automatic fat changing system is further provided with an electric control system, and the electric control system can detect the pressure in the lubrication space and the pressure is greater than the setting When the pressure is constant, the power system of the suction and discharge device is activated, and when the pressure is less than the set pressure, the power system of the suction and discharge device is stopped.
The bearing automatic fat changing system according to claim 11, wherein said electronic control system comprises a pressure sensor disposed in the lubrication space and a central controller, and the pressure sensor transmits the detected pressure signal to the central controller. The central controller can compare the received pressure signal with a set pressure previously stored therein, and the central controller controls the power system of the suction and discharge device to be turned on or off.
The automatic bearing fat changing system according to claim 11, wherein said electronic control system comprises a pressure switch for detecting a pressure in the lubrication space and a central controller, said set pressure being set in the pressure switch When the pressure in the lubrication space detected by the pressure switch reaches the set pressure therein, the pressure switch outputs a trigger signal to the central controller to open the power system, and the pressure in the lubrication space detected by the pressure switch is less than When the pressure is set within the pressure switch, the pressure switch stops outputting the trigger signal, and the central controller controls the power system of the suction and discharge device to stop.
The automatic bearing fat exchange system according to claim 11, wherein said suction and discharge device comprises a liposuction device, and said liposuction device comprises a housing, and a cavity of the housing is sealed and slidably provided at one end of the housing, and the housing is provided. The other end of the body is provided with an oil discharge port, and the oil discharge port is connected with the inner cavity of the casing, and the waste oil storage device is arranged on the oil discharge port, and the oil discharge port is arranged between the oil discharge port and the waste oil storage device. The check valve flows to the waste oil storage device, and the oil suction port is opened on the side wall of the casing, and the oil suction port communicates with the oil outlet, and the plunger is driven to reciprocate by the power device.
The bearing automatic fat changing system according to claim 14, wherein the power device comprises a hydraulic cylinder, and the hydraulic cylinder is connected with a power pump through a three-position four-way electromagnetic reversing valve, and the three-position four-way reversing valve The median function is O-shaped.
The automatic bearing fat changing system according to claim 14, wherein said power unit comprises a hydraulic cylinder connected to the power pump via a two-position four-way electromagnetic reversing valve.
The automatic bearing fat changing system according to claim 15, wherein said hydraulic oil cylinder is integrally provided with said lipolysis device, and a housing of the hydraulic oil cylinder is integrally provided with a housing of the grease suction device, and a piston of the hydraulic oil cylinder is provided. Connected to the plunger of the liposuction.
The bearing automatic grease changing system according to claim 14, wherein said power unit is an electric push rod.
The automatic bearing fat exchange system according to claim 18, wherein the electric push rod is integrally provided with the lipolyzer, and the housing of the electric push rod is integrally provided with the housing of the liposuction device, and is electrically pushed. The push rod of the rod is connected to the plunger of the liposuction.
The automatic bearing fat exchange system according to claim 16, wherein the hydraulic pressure system of the hydraulic cylinder is provided with an oil pressure sensor.
The automatic bearing fat exchange system according to claim 16, wherein the piston of the hydraulic cylinder is provided with a position sensor.
The automatic bearing fat exchange system according to claim 18, wherein said electric push rod is provided with a current detecting means in the circuit.
The bearing automatic fat changing system according to claim 18, wherein the moving member of the electric push rod is provided with a position sensor.
The automatic bearing fat changing system according to claim 10, wherein said breathing port is provided with an air filtering device.