CN114278855A - Automatic lubricating device, automatic lubricating method and engineering machinery - Google Patents
Automatic lubricating device, automatic lubricating method and engineering machinery Download PDFInfo
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- CN114278855A CN114278855A CN202111634437.7A CN202111634437A CN114278855A CN 114278855 A CN114278855 A CN 114278855A CN 202111634437 A CN202111634437 A CN 202111634437A CN 114278855 A CN114278855 A CN 114278855A
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Abstract
The invention discloses an automatic lubricating device, an automatic lubricating method and engineering machinery, wherein the automatic lubricating device comprises a grease supplementing part, a grease pumping part, a lubricating and distributing part and a control part; the grease supplementing part is used for supplying lubricating grease with preset pressure in one direction; the grease pumping part is connected with the grease supplementing part and pumps grease by means of mechanism movement; the lubricating and distributing part is connected with the grease pumping part and used for distributing lubricating grease; and the control part is connected with the fat supplementing part and is used for controlling the starting and stopping of the fat supplementing part. The invention carries out grease supplementing by means of the power source of the whole machine, and pumps grease by utilizing the movement of the mechanism, thereby ensuring that the lubricating grease at each hinge point is distributed as required; the system has simple and reliable structure.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to an automatic lubricating device.
Background
In the technical field of engineering machinery, the movement of a mechanism mostly depends on the action of an oil cylinder, and each hinge point in the mechanism needs to be lubricated; the amount of lubrication required is positively correlated to the movement of the mechanism, i.e. the more movements, the more grease is required.
The existing lubricating system can not reasonably determine the lubrication of each hinge point according to the motion amount of each mechanism and only can estimate the lubrication, so that the lubrication is more and less sometimes.
Disclosure of Invention
Aiming at the defects that the existing lubricating system can not reasonably determine the lubricating amount according to the movement of a mechanism and the like, the invention provides a large lubricating system based on an oil cylinder, which can use a power source of an engineering machine to supplement grease and takes the movement of the mechanism as grease pumping power so as to distribute the lubricating grease according to the requirement, and the system has simple and reliable structure.
The invention is realized according to the following technical scheme:
the invention discloses an automatic lubricating device, which comprises a grease supplementing part, a grease pumping part, a lubricating and distributing part and a control part, wherein the grease supplementing part is connected with the grease pumping part; the grease supplementing part is used for supplying lubricating grease with preset pressure in one direction; the grease pumping part is connected with the grease supplementing part and pumps grease by means of mechanism movement; the lubricating and distributing part is connected with the grease pumping part and used for distributing lubricating grease; and the control part is connected with the fat supplementing part and is used for controlling the starting and stopping of the fat supplementing part.
The specific scheme is as follows: the grease supplementing part comprises a lubricating grease barrel, a grease supplementing pump and a pressure sensor; the inlet of the grease supplementing pump is communicated with the lubricating grease barrel, and the outlet of the grease supplementing pump is communicated with the grease pumping part; the pressure sensor is arranged at the outlet of the grease supplementing pump; the pressure sensor detects that the pressure in the fat supplementing part is greater than the preset pressure, the control part controls the fat supplementing pump to stop working, and when the pressure sensor detects that the pressure in the fat supplementing part is less than the preset pressure, the control part controls the fat supplementing pump to start working.
The preferable scheme is as follows: the grease filling part also comprises an accumulator which is arranged at the outlet of the grease filling pump; when the mechanism does not move, the grease can be continuously supplemented; or when the mechanism moves and the grease filling pump cannot meet the flow of the grease pumping part, filling grease into the grease pumping part.
The preferable scheme is as follows: the grease supplementing part also comprises a grease supplementing filter and a grease filling filter, the grease supplementing filter is communicated with an outlet of the grease supplementing pump, and the grease filling filter is communicated with an inlet of the lubricating grease barrel.
The preferable scheme is as follows: the grease supplementing part also comprises a grease supplementing overflow valve which is communicated with an outlet of the grease supplementing pump.
The specific scheme is as follows: the grease pumping part comprises a grease pumping oil cylinder, a lower one-way valve and an upper one-way valve; the grease pumping oil cylinder is provided with two oil ports in a large cavity and a small cavity respectively, and the piston is provided with a through hole to ensure the one-way flow of lubricating grease; the large cavity of the grease pumping oil cylinder is communicated with the lower one-way valve, and the small cavity of the grease pumping oil cylinder is communicated with the upper one-way valve; two ends of the grease pumping oil cylinder are hinged in the mechanism, and the grease pumping oil cylinder is stretched and shortened through the movement of the mechanism.
The preferable scheme is as follows: the grease pumping part also comprises a grease pumping overflow valve which is communicated with a lower cavity of the grease pumping oil cylinder.
The invention also discloses an automatic lubricating method, which comprises the following steps:
supplying a lubricating grease of a predetermined pressure to the grease pumping portion by a grease supply pump in the grease supply portion; due to the movement of the mechanism, a grease pumping oil cylinder in the grease pumping part extends outwards, a lower one-way valve is opened, an upper one-way valve is closed, and grease enters a large cavity of the grease pumping oil cylinder; when the mechanism moves reversely, the grease pumping oil cylinder is shortened, the lower one-way valve is closed, the upper one-way valve is opened, grease is discharged from a small cavity of the grease pumping oil cylinder, and the grease enters the lubricating and distributing part to lubricate the mechanism; when the pressure value detected by the pressure sensor in the grease supplementing part is lower than the preset pressure, the control part controls the grease supplementing pump to start working to supplement grease, and the pressure of the grease supplementing part is ensured.
The invention also discloses engineering machinery provided with the automatic lubricating device.
The preferable scheme is as follows: the engineering machinery comprises an excavator, and the mechanism comprises a bucket rod, a bucket rod oil cylinder and a movable arm; the bucket rod is hinged with the movable arm, and the bucket rod oil cylinder and the grease pumping oil cylinder are connected between the bucket rod and the movable arm respectively.
Compared with the prior art, the invention has the beneficial effects that:
the automatic lubricating device disclosed by the invention is used for supplementing grease by virtue of a power source of the whole machine, and pumping grease by utilizing the movement of the mechanism, so that the grease at each hinge point is ensured to be distributed as required; the system has simple and reliable structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic diagram of an automatic lubrication apparatus of the present invention;
fig. 2 is a schematic view of the mounting of the grease pumping cylinder on the working device of the excavator.
The attached drawings are as follows: 1-1-bucket rod; 1-2-bucket rod oil cylinder; 1-3-movable arm; 1-4-pumping grease cylinder; 1-5-lubrication hinge point;
2-a-control section; 2-B-a lipid-supplementing moiety; 2-C-pumpable lipid fraction; 2-D-lubrication distribution section; 2-1 lubricating grease barrel; 2-2-fatliquoring filters; 2-3-a fat-supplementing pump; 2-4-a fat-supplementing filter; 2-5-grease supplementing overflow valve; 2-6-pressure sensor; 2-7-an accumulator; 2-8-lower one-way valve; 2-9 pumping grease cylinders; 2-10 pump grease relief valves; 2-11-upper check valve.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in FIG. 1, an automatic lubricating device includes a grease replenishing section 2-B, a grease pumping section 2-C, a lubrication dispensing section 2-D, and a control section 2-A.
Wherein the grease supplementing part 2-B is used for unidirectionally providing lubricating grease of a predetermined pressure; the grease pumping part 2-C is connected with the grease supplementing part 2-B, and grease pumping is realized by means of mechanism movement; the lubrication distribution part 2-D is connected with the grease pumping part 2-C and used for distributing lubricating grease, and a single-line lubrication mode, a double-line lubrication mode, a progressive lubrication mode or other lubrication modes can be adopted to lubricate the hinged point; the control part 2-A is connected with the grease supplementing part 2-B and mainly controls whether the grease supplementing part 2-B works or not to monitor the normal running of the whole lubrication.
With continued reference to fig. 1, the grease supplementing part 2-B comprises a lubricating grease barrel 2-1, a grease supplementing pump 2-3 and a pressure sensor 2-6; an inlet of the grease supplementing pump 2-3 is communicated with the lubricating grease barrel 2-1, and an outlet of the grease supplementing pump 2-3 is communicated with the grease pumping part 2-C; the pressure sensor 2-6 is arranged at the outlet of the fat supplementing pump 2-3; the fat supplementing pump 2-3 and the pressure sensor 2-6 are respectively and electrically connected with the control part 2-A, when the pressure sensor 2-6 detects that the pressure in the fat supplementing part 2-B is larger than the preset pressure, the control part 2-A controls the fat supplementing pump 2-3 to stop working, and when the pressure sensor 2-6 detects that the pressure in the fat supplementing part 2-B is smaller than the preset pressure, the control part 2-A controls the fat supplementing pump 2-3 to start working.
As an optimization scheme of the invention: the grease supplementing part 2-B also comprises an energy accumulator 2-7 which is arranged at the outlet of the grease supplementing pump 2-3, and when the mechanism does not move, grease can be continuously supplemented, the flow requirement of the grease supplementing pump is reduced, and the system cost is reduced. Or when the mechanism moves and the grease filling pump cannot meet the flow of the grease pumping part, filling grease into the grease pumping part.
As an optimization scheme of the invention: the grease supplementing part 2-B also comprises a grease supplementing filter 2-4 and a grease supplementing filter 2-2, and the grease supplementing filter 2-4 is communicated with an outlet of a grease supplementing pump 2-3, so that the cleanliness of a lubricating system is ensured, and the blocking fault of the lubricating system is reduced; the grease filling filter 2-2 is communicated with the inlet of the lubricating grease barrel 2-1, so that the cleanliness of grease in the lubricating grease barrel 2-1 is ensured, and the grease supplementing pump 2-3 is protected.
As an optimization scheme of the invention: the grease supplementing part 2-B also comprises a grease supplementing overflow valve 2-5, and the grease supplementing overflow valve 2-5 is communicated with the outlet of the grease supplementing pump 2-3, so that the relevant parts of the grease supplementing part are prevented from being damaged due to overhigh pressure.
With continued reference to FIG. 1, the grease pumping section 2-C includes a grease pumping cylinder 2-9, a lower check valve 2-8 and an upper check valve 2-11; the grease pumping oil cylinders 2-9 are respectively provided with two oil ports in the large cavity and the small cavity, and the piston is provided with a through hole to ensure the one-way flow of lubricating grease; the large cavity of the grease pumping oil cylinder 2-9 is communicated with the lower one-way valve 2-8, and the small cavity of the grease pumping oil cylinder 2-9 is communicated with the upper one-way valve 2-11.
As an optimization scheme of the invention: the grease pumping part 2-C also comprises a grease pumping overflow valve 2-10, the grease pumping overflow valve 2-10 is communicated with a lower cavity of the grease pumping oil cylinder 2-9, and when the lubrication distribution part is blocked, the pressure of a lubrication system is ensured not to be too high.
With continued reference to fig. 1, the lubrication distribution portion may lubricate the relevant moving mechanism, lubricate the relevant moving mechanism and other mechanisms, and even lubricate the whole vehicle.
The main working process of the invention is as follows:
filling grease into the lubricating grease barrel 2-1 through the grease filling filter 2-2, starting grease filling through the grease filling pump 2-3, and stopping the grease filling pump 2-3 after a certain pressure is reached; due to the movement of the mechanism, the grease pumping oil cylinder 2-9 extends outwards, the lower one-way valve 2-8 is opened, the upper one-way valve 2-11 is closed, and grease is fed into a large cavity of the grease pumping oil cylinder; when the mechanism moves reversely, the grease pumping oil cylinder 2-9 is shortened, the lower one-way valve 2-8 is closed, the upper one-way valve 2-11 is opened, grease is discharged from a small cavity of the grease pumping oil cylinder, and the grease enters the lubricating distribution part 2-D to lubricate the mechanism; when the pressure of the fat supplement part 2-B is lower than a certain pressure, the fat supplement pump 2-3 starts to supplement fat, and the pressure of the fat supplement part 2-B is ensured. The working cycle can carry out normal grease pumping on the movement mechanism.
Fig. 2 shows a preferred embodiment of the above mechanism: the mechanism comprises a bucket rod 1-1, a bucket rod oil cylinder 1-2 and a movable arm 1-3; the bucket rod 1-1 is hinged with the movable arm 1-3, and the bucket rod oil cylinder 1-2 and the grease pumping oil cylinder 1-4 are respectively connected between the bucket rod 1-1 and the movable arm 1-3. When the bucket rod oil cylinder 1-2 extends and shortens, the grease pumping oil cylinder 1-4 extends and shortens, and therefore lubrication is conducted on each hinge point 1-5.
In conclusion, the automatic lubricating device disclosed by the invention can be used for supplementing grease by virtue of a power source of the whole machine, and pumping grease by utilizing the movement of a mechanism, so that the grease can be distributed as required at each hinge point; the system has simple and reliable structure.
The invention also discloses engineering machinery provided with the automatic lubricating device.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An automatic lubrication device, comprising:
a grease supply part for supplying a lubricating grease of a predetermined pressure in one direction;
the grease pumping part is connected with the grease supplementing part and pumps grease by means of mechanism movement;
a lubrication dispensing portion connected to the grease pumping portion for dispensing the lubricating grease;
and the control part is connected with the fat supplementing part and is used for controlling the starting and stopping of the fat supplementing part.
2. An automatic lubricating apparatus according to claim 1, characterized in that:
the grease supplementing part comprises a lubricating grease barrel, a grease supplementing pump and a pressure sensor;
the inlet of the grease supplementing pump is communicated with the lubricating grease barrel, and the outlet of the grease supplementing pump is communicated with the grease pumping part;
the pressure sensor is arranged at the outlet of the grease supplementing pump;
the pressure sensor detects that the pressure in the fat supplementing part is greater than the preset pressure, the control part controls the fat supplementing pump to stop working, and when the pressure sensor detects that the pressure in the fat supplementing part is less than the preset pressure, the control part controls the fat supplementing pump to start working.
3. An automatic lubricating apparatus according to claim 2, characterized in that:
the grease filling part also comprises an accumulator which is arranged at the outlet of the grease filling pump;
when the mechanism does not move, the grease can be continuously supplemented; or when the mechanism moves and the grease filling pump cannot meet the flow of the grease pumping part, filling grease into the grease pumping part.
4. An automatic lubricating apparatus according to claim 2, characterized in that:
the grease supplementing part also comprises a grease supplementing filter and a grease filling filter, the grease supplementing filter is communicated with an outlet of the grease supplementing pump, and the grease filling filter is communicated with an inlet of the lubricating grease barrel.
5. An automatic lubricating apparatus according to claim 2, characterized in that:
the grease supplementing part also comprises a grease supplementing overflow valve which is communicated with an outlet of the grease supplementing pump.
6. An automatic lubricating apparatus according to claim 1, characterized in that:
the grease pumping part comprises a grease pumping oil cylinder, a lower one-way valve and an upper one-way valve;
the grease pumping oil cylinder is provided with two oil ports in a large cavity and a small cavity respectively, and the piston is provided with a through hole to ensure the one-way flow of lubricating grease;
the large cavity of the grease pumping oil cylinder is communicated with the lower one-way valve, and the small cavity of the grease pumping oil cylinder is communicated with the upper one-way valve;
two ends of the grease pumping oil cylinder are hinged in the mechanism, and the grease pumping oil cylinder is stretched and shortened through the movement of the mechanism.
7. An automatic lubricating apparatus according to claim 6, characterized in that:
the grease pumping part also comprises a grease pumping overflow valve which is communicated with a lower cavity of the grease pumping oil cylinder.
8. An automatic lubrication method, characterized in that:
supplying a lubricating grease of a predetermined pressure to the grease pumping portion by a grease supply pump in the grease supply portion; due to the movement of the mechanism, a grease pumping oil cylinder in the grease pumping part extends outwards, a lower one-way valve is opened, an upper one-way valve is closed, and grease enters a large cavity of the grease pumping oil cylinder; when the mechanism moves reversely, the grease pumping oil cylinder is shortened, the lower one-way valve is closed, the upper one-way valve is opened, grease is discharged from a small cavity of the grease pumping oil cylinder, and the grease enters the lubricating and distributing part to lubricate the mechanism; when the pressure value detected by the pressure sensor in the grease supplementing part is lower than the preset pressure, the control part controls the grease supplementing pump to start working to supplement grease, and the pressure of the grease supplementing part is ensured.
9. A construction machine characterized in that:
an automatic lubricating apparatus according to any one of claims 1 to 7 is mounted.
10. A working machine according to claim 9, characterized in that:
the engineering machinery comprises an excavator, and the mechanism comprises a bucket rod, a bucket rod oil cylinder and a movable arm;
the bucket rod is hinged with the movable arm, and the bucket rod oil cylinder and the grease pumping oil cylinder are connected between the bucket rod and the movable arm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111634437.7A CN114278855A (en) | 2021-12-29 | 2021-12-29 | Automatic lubricating device, automatic lubricating method and engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111634437.7A CN114278855A (en) | 2021-12-29 | 2021-12-29 | Automatic lubricating device, automatic lubricating method and engineering machinery |
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| CN114278855A true CN114278855A (en) | 2022-04-05 |
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| CN202111634437.7A Pending CN114278855A (en) | 2021-12-29 | 2021-12-29 | Automatic lubricating device, automatic lubricating method and engineering machinery |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH078448U (en) * | 1993-07-09 | 1995-02-07 | 油谷重工株式会社 | Automatic greasing device for work attachments |
| JPH078447U (en) * | 1993-07-09 | 1995-02-07 | 油谷重工株式会社 | Automatic greasing device for telescopic arm |
| CN200961275Y (en) * | 2006-08-24 | 2007-10-17 | 徐州恒天德尔重工科技有限公司 | Electric-control intelligent lubrication system for whole dredging vehicle |
| KR20080108805A (en) * | 2007-06-11 | 2008-12-16 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Auto lubrication apparatus for heavy construction equipment |
| CN104670130A (en) * | 2013-12-03 | 2015-06-03 | 十堰市驰田汽车有限公司 | Automatic lubricating device for dumper chassis |
| CN205560233U (en) * | 2016-01-18 | 2016-09-07 | 万帮 | Portable automatic currying ware |
| CN106870912A (en) * | 2017-03-13 | 2017-06-20 | 成都特普瑞斯节能环保科技有限公司 | A kind of automatic energy-saving oil supply system |
| CN208633998U (en) * | 2018-07-10 | 2019-03-22 | 上海骋海新能源科技有限公司 | A kind of electronic grease pump of integral type wind electricity change paddle single-line type |
| CN212510430U (en) * | 2020-06-23 | 2021-02-09 | 北京鹏拓海德科技有限公司 | Automatic lubrication alarm control system |
| CN214948122U (en) * | 2021-04-23 | 2021-11-30 | 中国铁建重工集团股份有限公司 | Multipoint lubrication distribution system of cotton picker |
-
2021
- 2021-12-29 CN CN202111634437.7A patent/CN114278855A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH078448U (en) * | 1993-07-09 | 1995-02-07 | 油谷重工株式会社 | Automatic greasing device for work attachments |
| JPH078447U (en) * | 1993-07-09 | 1995-02-07 | 油谷重工株式会社 | Automatic greasing device for telescopic arm |
| CN200961275Y (en) * | 2006-08-24 | 2007-10-17 | 徐州恒天德尔重工科技有限公司 | Electric-control intelligent lubrication system for whole dredging vehicle |
| KR20080108805A (en) * | 2007-06-11 | 2008-12-16 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Auto lubrication apparatus for heavy construction equipment |
| CN104670130A (en) * | 2013-12-03 | 2015-06-03 | 十堰市驰田汽车有限公司 | Automatic lubricating device for dumper chassis |
| CN205560233U (en) * | 2016-01-18 | 2016-09-07 | 万帮 | Portable automatic currying ware |
| CN106870912A (en) * | 2017-03-13 | 2017-06-20 | 成都特普瑞斯节能环保科技有限公司 | A kind of automatic energy-saving oil supply system |
| CN208633998U (en) * | 2018-07-10 | 2019-03-22 | 上海骋海新能源科技有限公司 | A kind of electronic grease pump of integral type wind electricity change paddle single-line type |
| CN212510430U (en) * | 2020-06-23 | 2021-02-09 | 北京鹏拓海德科技有限公司 | Automatic lubrication alarm control system |
| CN214948122U (en) * | 2021-04-23 | 2021-11-30 | 中国铁建重工集团股份有限公司 | Multipoint lubrication distribution system of cotton picker |
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