CN110848549A

CN110848549A - Lubricating system

Info

Publication number: CN110848549A
Application number: CN201810945190.2A
Authority: CN
Inventors: 赵民章; 司艳凯; 李建华; 马利峰
Original assignee: Autol Technology Co ltd
Current assignee: Autol Technology Co ltd
Priority date: 2018-08-20
Filing date: 2018-08-20
Publication date: 2020-02-28

Abstract

The invention relates to a lubricating system which comprises an oil pumping module, wherein the oil pumping module comprises a grease pump and an oil tank, the lubricating system also comprises at least one double-oil-way control suction and discharge device, the oil pumping module controls the double-oil-way control suction and discharge device through a reversing module, the lubricating system also comprises at least one oil injection module powered by the oil pumping module, and the oil injection module comprises a distributor. The new lubricating grease can be filled into the lubricating point position through a distributor under the pumping action of a grease filling pump; after the lubricating grease is pressurized by the grease injection pump, the lubricating grease is used as a power medium of the double-oil-way control suction device, once the grease injection pump is started when the lubricating grease is replaced, the operations of adding new lubricating grease and sucking waste grease are simultaneously carried out, so that the waste grease is pumped out from the lubricating point position, and the new lubricating grease is added into the lubricating point position at the same time, and the operation of pumping the waste grease out from the lubricating point position when the new lubricating grease is added is realized.

Description

Lubricating system

Technical Field

The present invention relates to a lubrication system.

Background

At present, in the lubricating point positions with sealing structures such as a gear box and a bearing seat of a wind driven generator, after lubricating grease is filled, the lubricating grease can be oxidized and deteriorated and the hardening problem caused by base oil precipitation can be caused after a period of operation, and meanwhile, abrasive dust generated in the operation of the lubricating point positions can also enter the lubricating grease, so that the lubricating grease is caused to operate in the state of being deteriorated, hardened and having the abrasive dust. In order to ensure good lubricating effect of the lubricating grease, the lubricating grease needs to be replaced periodically, but when new lubricating grease is filled into a lubricating point, if the waste grease is not discharged, on one hand, the new lubricating grease is influenced by the pressure of the waste grease and is difficult to fill; on the other hand, even if new lubricating grease is extruded into the lubricating point position, the new lubricating grease is also polluted by the waste grease, so that the oil change effect in the lubricating point position is not obvious, and the lubricating effect is poor.

Disclosure of Invention

The invention aims to provide a lubricating system to solve the technical problems of blocked injection of new lubricating grease and poor oil change effect.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

scheme 1: the lubricating system also comprises at least one oiling module powered by the oil pumping module, wherein the oiling module comprises a distributor.

Scheme 2: the following is further improved on the basis of the scheme 1: the oil injection module and the double-oil-way control suction and discharge device share a main oil pipe.

Scheme 3: the following is further improved on the basis of the scheme 2: the oil injection module and the double-oil-way control suction and discharge device are connected in parallel behind the same reversing module.

Scheme 4: the following is further improved on the basis of the scheme 3: the distributor of the oiling module is a double-wire distributor.

Scheme 5: the following is further improved on the basis of the scheme 4: the reversing module is a four-way reversing valve or a five-way reversing valve.

Scheme 6: the following is further improved on the basis of the scheme 5: the reversing module is a two-position four-way reversing valve, one of two channels on one side of the two-position four-way reversing valve is communicated with the oil tank, the other one of the two channels is communicated with the grease pump, and the two channels on the other side of the two-position four-way reversing valve are respectively communicated with two oil inlets of the double-line distributor.

Scheme 7: the following is further improved on the basis of the scheme 6: the double-oil-way control suction and discharge device and the double-line distributor share a valve body.

Scheme 8: the following is further improved on the basis of any one of the schemes 1 to 7: the double-oil-way control suction and discharge device is provided with a plurality of double-oil-way control suction and discharge devices, and the double-oil-way control suction and discharge devices are connected in parallel.

Scheme 9: the following is further improved on the basis of any one of the schemes 4 to 7: the double-line distributor is provided with a plurality of double-line distributors, and the double-line distributors are connected in parallel.

Scheme 10: the following is further improved on the basis of the scheme 2: the oil pumping module is connected with at least two reversing modules in parallel, and the oil injection module and the double-oil-way control suction and discharge device are respectively connected behind different reversing modules.

Scheme 11: the following is further improved on the basis of the scheme 1: the oil pumping module is at least provided with two main oil pipes, and the oil pumping module and the double-oil-passage control suction and discharge device are respectively positioned on different main oil pipes.

Scheme 12: the following is further improved on the basis of the scheme 1: and the double-oil-way control suction and discharge device is connected with a waste oil collector.

Scheme 13: the following is further improved on the basis of the scheme 1: the oil pump is a double-plunger pump, the reversing module comprises two three-way valves, the two three-way valves are respectively connected in series on two oil paths between the double-plunger pump and the double-oil-path control suction and discharge device, and a third outlet of each three-way valve is connected with the oil tank.

The lubricating system can simultaneously realize centralized lubrication and waste oil collection, the oil pumping module can drive the double oil paths to control the suction and discharge device to suck waste oil, meanwhile, the oil pumping module also drives the oil pumping module to inject new lubricating grease into a lubricating point, the waste oil collection and the centralized lubrication are carried out synchronously, and particularly, the new lubricating grease can be injected into the lubricating point through a distributor under the pumping action of the grease injection pump; the new lubricating grease is pressurized by the grease injection pump and then is used as a power medium of the double-oil-way control suction device, namely, the energy conversion is carried out on the suction device to output the mechanical power to suck the waste grease after the new lubricating grease is pressurized by the grease injection pump, so that once the grease injection pump is started when the lubricating grease is replaced, the operations of adding the new lubricating grease and sucking the waste grease are simultaneously carried out, the waste grease is sucked from the lubricating point position while the new lubricating grease is filled into the lubricating point position, and the operation of sucking the waste grease from the lubricating point position when the new lubricating grease is filled is realized.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the lubrication system of the present invention;

FIG. 2 is a schematic diagram of the oil circuit of the dispenser of FIG. 1 in a first condition;

FIG. 3 is a schematic diagram of the oil circuit of the dispenser of FIG. 1 in a second condition;

FIG. 4 is a schematic diagram of the oil path of the suction device in FIG. 1 at the oil suction station;

FIG. 5 is a schematic view of the oil circuit of the suction and exhaust device of FIG. 1 at an oil discharge station;

FIG. 6 is a schematic structural view of embodiment 2 of the lubrication system of the present invention;

FIG. 7 is a schematic structural view of embodiment 3 of the lubrication system of the present invention;

FIG. 8 is a schematic structural view of embodiment 4 of the lubrication system of the present invention;

FIG. 9 is a schematic structural view of embodiment 5 of the lubrication system of the present invention;

FIG. 10 is a schematic structural view of embodiment 6 of the lubrication system of the present invention;

FIG. 11 is a schematic structural view of embodiment 7 of the lubrication system of the present invention;

FIG. 12 is a schematic structural view of embodiment 8 of the lubrication system of the present invention;

FIG. 13 is a schematic structural view of embodiment 9 of the lubrication system of the present invention;

FIG. 14 is a schematic structural view of embodiment 10 of the lubrication system of the present invention;

FIG. 15 is a schematic structural view of embodiment 11 of the lubrication system of the present invention;

FIG. 16 is a schematic structural view of embodiment 12 of the lubrication system of the present invention;

FIG. 17 is a schematic structural view of embodiment 13 of the lubrication system of the present invention;

in FIGS. 1-5 and 8-17: 100-lubricating unit, 101-oil tank, 102-grease injection pump, 103-reversing valve, 104-distributor, 105-suction discharger, 121-three-way valve, 122-oil return path, 131-double plunger pump, 141-adjusting screw, 142-indicating rod, 143-control piston, 144-working piston, 145-first oil filling port 145, 146-second oil filling port 146, 151-control unit, 152-execution unit, 153-piston, 154-plunger, 155-oil suction port, 156-oil discharge port, 157-collector; 171-on-off valve, 181-progressive distributor, 191-single line distributor; a first oil supply port C and a second oil supply port D;

in fig. 6: 303-change valve, 304-distributor, 305-suction and discharge device, 309-suction and discharge device module;

in fig. 7: 500-lubrication unit, 503-reversing valve, 504-distributor, 505-suction and discharge device.

Detailed Description

Example 1 of the lubricating system of the present invention: the lubricating system is a centralized lubricating type double-line lubricating device which is used for filling new lubricating grease into a lubricating point position of a wind driven generator and simultaneously pumping and discharging waste grease in the lubricating point position, namely, the lubricating system is not only used for filling lubricating grease in the traditional sense, but also is a multifunctional lubricating system integrating centralized lubrication and waste oil collection. As shown in fig. 1, the lubricating system mainly comprises a double-line grease pump station, a distributor 104, a suction and discharge device 105, new lubricating oil and a lubricating point location, wherein a grease pump 102, a driving motor and a reversing valve 103 in the double-line grease pump station are connected with the distributor 104 and the suction and discharge device 105 in a conduction mode through an oil path to form a lubricating device connected between an oil tank 101 and the lubricating point location, the reversing valve 103 in the lubricating device, the distributor 104 and the suction and discharge device 105 form a lubricating unit 100, an inlet of the lubricating unit 100 is an oil inlet P of the reversing valve 103, and an outlet of the lubricating unit is an oil return port T of the reversing valve 103.

The double-line grease pump station comprises an oil tank 101, a grease injection pump 102, a driving motor and a reversing valve 103. The oil tank 101 contains new grease to be filled into the lubrication points. The inlet of the grease injection pump 102 is a pumping port connected to the oil tank 101, and the outlet is a pumping port connected to the reversing valve 103, so that new grease in the oil tank 101 is sucked from the pumping port and pumped out from the pumping port by the grease injection pump 102 under the driving of the driving motor. The reversing valve 103 is a two-position four-way reversing valve, four oil ports of the reversing valve 103 are respectively an oil inlet P connected to a pumping oil port of the grease injection pump 102, an oil return port T directly communicated with the oil tank 101, and a first working port a and a second working port B communicated with two ports of a new oil pipeline, one working position of the reversing valve 103 is switched to a first working position where the oil inlet P is communicated with the first working port a, and the oil return port T is communicated with the second working port B, and the other working position is switched to a second working position where the oil inlet P is communicated with the second working port B, and the oil return port T is communicated with the first working port a.

The dispenser 104 is a two-wire dispenser, which is an existing product. As shown in fig. 2 and 3, the two-wire dispenser includes an adjustment screw 141, an indication rod 142, a first oil supply port C, a second oil supply port D, a control piston 143, a working piston 144, a first oil injection port 145, and a second oil injection port 146. The first oil supply port C is connected to a first working port of the reversing valve through a first filling oil path, and the second oil supply port D is connected to a second working port of the reversing valve through a second filling oil path, so that when one of the first filling oil path and the second filling oil path is pressurized, the other one of the first filling oil path and the second filling oil path is unloaded; the first and second oil injection ports 146 are connected to two lubrication points on the lubrication points, respectively. The working principle of the distributor is as follows: the new lubricating grease delivered by the grease filling pump enters the first oil supply port C of the distributor through the first oil filling passage, the new lubricating grease is pressurized at the first oil supply port C, so that the control piston 143 moves towards the second oil supply port D to close the first oil filling port 145, open the second oil filling port 146 and unload the second oil supply port D, meanwhile, the pressure at the first oil supply port C acts on the working piston 144 through the new lubricating grease, and the working piston 144 presses the new lubricating grease out of the second oil filling port 146 to be injected into a lubricating point position of the lubricating point position. When new lubricating grease enters the second oil supply port D through the second oil filling path, the new lubricating grease is pressurized at the second oil supply port D, and the pressure pushes the control piston 143 to move towards the first oil supply port C, so that the second oil supply port 146 is closed, the first oil supply port 145 is opened, and the first oil supply port C is unloaded; on the other hand, acts on the working piston 144, and the working piston 144 presses new grease to be injected from the first grease inlet 145, acting on another lubrication point. Thus, the dispenser has a first state in which the second fill port 146 is filled with oil when the first oil supply port C is pressurized and the second oil supply port D is unloaded, and a second state in which the first fill port 145 is filled with oil when the second oil supply port D is pressurized and the first oil supply port C is unloaded.

The suction and discharge device 105 is a dual control oil passage suction and discharge device, which belongs to the existing product. As shown in fig. 4 and 5, the dual-control oil duct suction/discharge device mainly includes a control unit 151 and an execution unit 152, and the control unit 151 and the execution unit 152 share a housing. The control unit 151 is a double-acting piston cylinder including a first control port E connected to a first working port of the directional valve through a first control oil passage, a second control port F connected to a second working port of the directional valve through a second control oil passage, and a piston 153, so that the second control port F is unloaded when the first control port E pressurizes the piston 153, and vice versa. The actuating unit 152 is similar to a conventional syringe, that is, the actuating unit 152 is a plunger 154 cylinder, and includes a plunger 154, an oil suction port 155, and an oil discharge port 156, so that as the plunger 154 is drawn and inserted reciprocally, the oil suction port 155 and the oil discharge port 156 are alternately opened to alternately perform oil suction and oil discharge, and a collector 157 for storing waste oil is connected to the oil discharge port 156. A check valve is provided at the oil discharge port 156 of the suction and discharge device 105. The working principle of the suction and discharge device is as follows: when the reversing valve is switched to a first control oil path to be communicated with a grease injection pump, and a second control oil path to be communicated with an oil tank, the grease injection pump conveys new lubricating grease to a first control port E through the first control oil path, the new lubricating grease in the first control port E is pressurized, the pressure of a first piston 153 cavity communicated with the first control port E is increased, the second piston 153 cavity is compressed by the piston 153 under the action of the pressure in the first piston 153 cavity, the new lubricating grease in the second piston 153 cavity is unloaded from a second control port F and flows back to the oil tank, and meanwhile, the piston 153 drives the plunger 154 to stretch and move in the plunger 154 cylinder, so that waste grease stored in the plunger 154 cylinder is conveyed to a collector from an oil discharge port 156 under the state that an oil suction port 155 is closed; when the reversing valve is switched to a first control oil path to be communicated with an oil tank, and the second control port F is communicated with a grease injection pump, the grease injection pump conveys new lubricating grease to the second control port F through the second control oil path, the cavity of the second piston 153 is pressurized, the piston 153 compresses the cavity of the first piston 153 under the action of pressure to unload the first control port E, and meanwhile, the piston 153 drives the plunger 154 to retract and move in the plunger 154 cylinder to open the oil suction port 155, and waste grease is sucked out from a lubricating point position through the oil suction port 155.

The distributor 104 and the suction and discharge device 105 share one valve body, so that the distributor 104 and the suction and discharge device 105 are integrally arranged to form a combined valve, a new oil pipeline in the corresponding whole lubricating system can be divided into an outer pipeline outside the combined valve and an inner pipeline inside the combined valve, and the inner pipeline is a grease flow channel arranged on the shared valve body.

The working principle of the lubricating system in the embodiment is as follows: after the grease injection pump 102 is started, the grease injection pump 102 sends new lubricating grease in the oil tank 101 to an oil inlet of the reversing valve 103, after the new lubricating grease is discharged from the reversing valve 103, one path of the new lubricating grease enters the distributor 104 and is injected into a lubricating point, the other path of the new lubricating grease enters the control unit of the suction and discharge device 105 and serves as a pressure medium, along with the alternate transformation of the first station and the second station of the reversing valve 103, the control unit of the suction and discharge device 105 drives the execution unit to perform reciprocating oil suction and oil discharge, so that the waste grease in the lubricating point is sucked out and is discharged into the collector 157, and meanwhile, the distributor 104 continuously injects the new lubricating grease into the lubricating point, so that the replacement of the waste grease and the new lubricating grease in the lubricating point.

Example 2 of the lubricating system of the present invention: as shown in fig. 6, the present embodiment is different from embodiment 1 in that there are a plurality of suction/discharge devices 305, each suction/discharge device 305 is connected in parallel to form a suction/discharge device module 309, for example, the first control port E of the control unit of each suction/discharge device 305 is connected to the first working port a of the direction switching valve 303, and the second control port F is connected to the second working port B of the direction switching valve 303. The distributor module and the suction and discharge module 309 are still arranged in parallel between the first and second working ports A, B of the reversing valve 303, that is, the first oil supply port C of each distributor 304 is connected to the first working port a of the reversing valve 303 together with one end of the suction and discharge module, and the second oil supply port D is connected to the second working port B of the reversing valve 303 together with the other end of the suction and discharge module.

Example 3 of the lubricating system of the present invention: as shown in fig. 7, the present embodiment is different from embodiment 1 in that a plurality of lubrication units 500 are provided, each of the lubrication units 500 being formed by a selector valve 503, a distributor 504, and a suction/discharge unit 505.

Example 4 of the lubricating system of the present invention: as shown in fig. 8, the difference between this embodiment and embodiment 1 is that the grease pump 102 directly supplies oil to two parallel branches, one of the oil paths is provided with the reversing valve 103 and the distributor 104 behind it, the distributor and embodiment 1 are both two-line distributors, the first oil supply port C and the second oil supply port D of the two-line distributor are respectively connected with the E, F port of the two-oil-path control suction and discharge device 105, the distributor 104 and the suction and discharge device 105 are connected in parallel, the same way as the connection between the suction and discharge device and the distributor in embodiment 1, the oil discharge port 156 of the suction and discharge device 105 is still provided with the collector 157, and the collector 157 is a collection bottle or a collection bag. The other oil path is provided with a reversing valve 103, and then more than one suction and discharge device 105, only one of which is shown in the embodiment.

Example 5 of the lubricating system of the present invention: as shown in fig. 9, the present embodiment is different from embodiment 4 in that, of the two oil paths, one of the two oil paths is connected in parallel with at least one two-line distributor 104, one of which is illustrated in the present embodiment, and the other oil path is connected in parallel with at least one two-line control suction/discharge device 105, only one of which is illustrated in the present embodiment, after the reversing valve 103. Namely, the distributor 104 and the suction and discharge device 105 are respectively located on different oil paths, one oil path is only used for filling lubricating grease, and the other oil path is only used for sucking old grease.

Example 6 of the lubricating system of the present invention: as shown in fig. 10, the present embodiment is different from embodiment 5 in that the grease pump 102 is provided with two oil outlets on the front and back surfaces, and each oil outlet is connected to one oil path, that is, two main oil paths independent of each other; in embodiment 5, the two oil passages share one main oil passage, and the grease pump in embodiment 5 only uses one oil outlet.

Example 7 of the lubricating system of the present invention: as shown in fig. 11, the present embodiment is different from embodiment 6 in that a double-line distributor is replaced with two parallel progressive distributors 181, that is, one progressive distributor 181 is respectively disposed on two oil paths after the reversing valve 103, and in other embodiments, each oil path is not limited to one progressive distributor.

Example 8 of the lubricating system of the present invention: as shown in fig. 12, the present embodiment is different from embodiment 7 in that the progressive distributor is replaced with a single-line distributor 191.

Example 9 of the lubricating system of the present invention: as shown in fig. 13, the present embodiment is different from embodiment 6 in that at least one distributor 104 is provided on the left side oil path, the right side oil path is a combination of the distributor 104 and the suction and discharge device 105, and functionally described as a centralized lubrication subsystem on the left side and a subsystem combining waste oil collection and centralized lubrication on the right side.

Example 10 of the lubricating system of the present invention: as shown in fig. 14, the present embodiment is different from embodiment 1 in that two grease pumps 102 are used to supply two oil paths, respectively, and a three-way valve 121 is disposed on each of the two oil paths, and a third path of the three-way valve 121 is a return oil path 122 connected to the oil tank 101.

Example 11 of the lubricating system of the present invention: as shown in fig. 15, the present embodiment is different from embodiment 10 in that two oil passages are supplied with oil by two plungers of a double plunger pump 131, and the double plunger pump 131 is a grease pump having two plungers on the same valve body.

Example 12 of the lubricating system of the present invention: as shown in fig. 16, the present embodiment is different from embodiment 10 in that the change-over valve 103 is replaced by two three-way valves 121, a single-line distributor 191 is connected in series on the oil path corresponding to each three-way valve 121 and behind the three-way valve 121, one of the outlets of the single-line distributor 191 on one oil path is connected to the port E of the dual-oil path control suction and discharge device 105, and one of the outlets of the single-line distributor 191 on the other oil path is connected to the port F of the dual-oil path control suction and discharge device 105. Namely, the change valve 103 and the two-wire distributor 104 are replaced with a pair of three-way valves 121 and a pair of one-wire distributors 191 on two oil paths.

Example 13 of the lubricating system of the present invention: as shown in fig. 17, the present embodiment is different from embodiment 12 in that a single line dispenser is replaced with a progressive dispenser 181, and at the same time, in order to ensure that the progressive dispenser 181 has a sufficient pressure, an on-off valve 171 is provided between the three-way valve 121 and the progressive dispenser 181.

Other embodiments of the lubrication system of the present invention: each lubricating unit or waste oil collecting unit shares the oil tank, so that the lubricating device can lubricate the same lubricating point position and can lubricate multiple lubricating point positions. The reversing valve can be an electromagnetic valve, a pilot valve of hydraulic control and pneumatic control, or a valve of manual control. In a single lubricating unit, the distributor can be a plurality of distributors, but the distributors are arranged in parallel.

Claims

1. The utility model provides a lubricating system, includes the pump oil module, and the pump oil module includes grease pump and oil tank, its characterized in that: the lubricating system also comprises at least one double-oil-way control suction and discharge device, the oil pumping module controls the double-oil-way control suction and discharge device through the reversing module, the lubricating system also comprises at least one oil injection module powered by the oil pumping module, and the oil injection module comprises a distributor.

2. The lubrication system of claim 1, wherein: the oil injection module and the double-oil-way control suction and discharge device share a main oil pipe.

3. The lubrication system of claim 2, wherein: the oil injection module and the double-oil-way control suction and discharge device are connected in parallel behind the same reversing module.

4. The lubrication system of claim 3, wherein: the distributor of the oiling module is a double-wire distributor.

5. The lubrication system of claim 4, wherein: the reversing module is a four-way reversing valve or a five-way reversing valve.

6. The lubrication system of claim 5, wherein: the reversing module is a two-position four-way reversing valve, one of two channels on one side of the two-position four-way reversing valve is communicated with the oil tank, the other one of the two channels is communicated with the grease pump, and the two channels on the other side of the two-position four-way reversing valve are respectively communicated with two oil inlets of the double-line distributor.

7. The lubrication system of claim 6, wherein: the double-oil-way control suction and discharge device and the double-line distributor share a valve body.

8. The lubrication system according to any one of claims 1 to 7, wherein: the double-oil-way control suction and discharge device is provided with a plurality of double-oil-way control suction and discharge devices, and the double-oil-way control suction and discharge devices are connected in parallel.

9. The lubrication system according to any one of claims 4 to 7, wherein: the double-line distributor is provided with a plurality of double-line distributors, and the double-line distributors are connected in parallel.

10. The lubrication system of claim 2, wherein: the oil pumping module is connected with at least two reversing modules in parallel, and the oil injection module and the double-oil-way control suction and discharge device are respectively connected behind different reversing modules.

11. The lubrication system of claim 1, wherein: the oil pumping module is at least provided with two main oil pipes, and the oil pumping module and the double-oil-passage control suction and discharge device are respectively positioned on different main oil pipes.

12. The lubrication system of claim 1, wherein: and the double-oil-way control suction and discharge device is connected with a waste oil collector.

13. The lubrication system of claim 1, wherein: the oil pump is a double-plunger pump, the reversing module comprises two three-way valves, the two three-way valves are respectively connected in series on two oil paths between the double-plunger pump and the double-oil-path control suction and discharge device, and a third outlet of each three-way valve is connected with the oil tank.