1. A transmission lubrication and lubrication media filtration system comprising a housing (1), an oil filter element (4), an oil pump (5) and a filter (6);

be provided with oil inlet (2) in casing (1), oil inlet (2) outside is provided with magnet (3), and oil inlet (2) are connected with oil pump (5) input through oil filter core (4), are provided with the jackshaft in casing (1), and oil pump (5) and jackshaft coaxial coupling, oil pump (5) output process filter (6) and casing (1) inside intercommunication.

2. Transmission lubrication and lubrication media filtration system according to claim 1, characterised in that the filter (6) is arranged outside the housing (1).

3. Transmission lubrication and lubrication media filtration system according to claim 1, characterised in that the line between the oil pump (5) and the filter (6) is a first line, the line between the filter (6) and the inside of the housing (1) is a second line, a safety valve (7) is arranged between the first line and the second line, the plug of the safety valve (7) is directed towards the first line, the safety valve (7) is provided with an oil hole at the connection with the second line.

4. Transmission lubrication and lubrication media filter system according to claim 3, characterised in that a pressure sensor is provided inside the filter (6) output or the safety valve (7).

5. The transmission lubrication and lubrication media filtration system of claim 3,

the safety valve (7) comprises a valve body (14), a cylindrical pin (15), a spring (16) and a steel ball (17), wherein the cylindrical pin (15) is fixed inside the valve body (14), one side, facing the first pipeline, of the cylindrical pin (15) is fixed with one end of the spring (16), the other end of the spring (16) is fixed with the steel ball (17), and the oil hole is formed in one side, facing the second pipeline, of the cylindrical pin (15).

6. The transmission lubrication and lubrication media filtration system of claim 1, wherein the housing 1 is divided into a front housing 19 and a rear housing 20, the front and rear ends of the front housing 19 and the rear housing 20 are sealed and connected to form an oil passage 18 therebetween, the oil filter 4 is mounted on the rear housing 20, the oil pump 5 is fixedly connected to the front housing 19, the oil filter 4 and the oil pump 5 are communicated through the oil passage 18, a pipe connection is provided outside the front housing 19, the oil pump 5 and the filter 6 are connected through a pipe, and the output end of the filter 6 is connected to the inside of the front housing 19.

7. The transmission lubrication and lubrication media filtration system of claim 1, wherein the oil pump (5) comprises a front end cap (8), an outer rotor (9), an inner rotor (10), an inner rotor pin (11), and a pressure plate (12), wherein the inner rotor (10) and the inner rotor pin (11) are fixedly connected together, the inner rotor (10) and the outer rotor (9) are engaged, and the pressure plate (12) fixes the outer rotor (9), the inner rotor (10), and the inner rotor pin (11) within the front end cap (8); the end part of the middle shaft is provided with a middle shaft hole, and an inner rotor pin (11) is inserted into the middle shaft hole.

8. Transmission lubrication and lubrication media filtration system according to claim 7, characterized in that the inner rotor (10) and the outer rotor (9) employ a pair of cycloid gear pairs.

9. A lubrication and filtration method for a transmission of a system according to any one of claims 1 to 8, characterized in that during operation of the transmission, when the intermediate shaft rotates, the intermediate shaft drives the oil pump (5) to operate, so as to pump lubricating oil into the cavity of the oil pump (5), and before the lubricating oil enters the oil pump (5), the lubricating oil first passes through the oil inlet (2) to adsorb metal impurities in the lubricating oil, and then passes through the magnet (3) and the oil filter element (4) to be roughly filtered; when the lubricating oil is pumped out from the oil pump (5), the lubricating oil is changed into the lubricating oil with certain pressure after being pumped out by the oil pump (5), enters the filter (6) for fine filtration, and returns to the interior of the shell (1) for lubrication after passing through the filter (6).

10. Transmission lubrication filtering method according to claim 9, characterised in that when the filter (6) is blocked, the lubricating oil pushes the safety valve (7) in the first line, passes the safety valve (7) into the second line and finally returns to the inside of the casing (1) for lubrication.

Background

Along with the diversification and the complexity of commercial car market, motorcycle type and operating mode, host computer factory and user more and more concern the segment market: wherein the domestic high-end heavy card subdivision market mainly gives priority to express delivery, dangerous chemicals, green leads to, commodity circulation cars such as cold chain, and high-end heavy card mainly matches ZF MT and AMT derailleur, wolvo AMT derailleur. The working condition of a high-end heavy truck tractor type is good, and high-speed standard load traction logistics are mainly used, so that high reliability, high attendance rate and high fuel economy guarantee are required; high fuel economy and high attendance require the aspects of high reliability, high economy, rapid and convenient disassembly, assembly and maintenance and the like of the transmission to be taken as guarantees.

Particle impurities of an existing transmission oil system can abrade key parts such as transmission gears, bearings, oil pumps, oil pipe joints and the like, and can cause blockage of mechanical parts such as small-pipe-diameter oil pipes, joints, air valves and the like, so that the reliability of an internal lubricating system of a transmission is influenced, and finally the reliability and the service life of the whole transmission assembly are influenced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a transmission lubricating and lubricating medium filtering system and a transmission lubricating and lubricating medium filtering method, so that the cleanliness of the whole box in a box body of a transmission assembly is improved, particle impurities in an oil system are reduced, and the reliability and the service life of the transmission assembly are improved.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a transmission lubrication and lubrication media filter system includes a housing, an oil filter element, an oil pump, and a filter;

be provided with the oil inlet in the casing, the oil inlet outside is provided with magnet, and the oil inlet is connected with the oil pump input through oil filter core, is provided with the jackshaft in the casing, oil pump and jackshaft coaxial coupling, and the oil pump output end is through the inside intercommunication of filter and casing.

Preferably, the pipeline between the oil pump and the filter is a first pipeline, the pipeline between the filter and the inside of the shell is a second pipeline, a safety valve is arranged between the first pipeline and the second pipeline, a plug of the safety valve faces the first pipeline, and an oil hole is formed in the joint of the safety valve and the second pipeline.

Further, a pressure sensor is arranged at the output end of the filter or in the safety valve.

Further, the safety valve comprises a valve body, a cylindrical pin, a spring and a steel ball, wherein the cylindrical pin is fixed inside the valve body, one side, facing the first pipeline, of the cylindrical pin is fixed with one end of the spring, the other end of the spring is fixed with the steel ball, and the oil hole is formed in one side, facing the second pipeline, of the cylindrical pin.

Preferably, the oil pump comprises a front end cover, an outer rotor, an inner rotor pin and a pressure plate, wherein the inner rotor and the inner rotor pin are fixedly connected together, the inner rotor and the outer rotor are meshed, and the outer rotor, the inner rotor and the inner rotor pin are fixed in the front end cover by the pressure plate; the end part of the middle shaft is provided with a middle shaft hole, and the inner rotor pin is inserted into the middle shaft hole.

Furthermore, the inner rotor and the outer rotor adopt a pair of cycloid gear pairs.

Preferably, the filter is disposed outside the housing.

In the lubricating and filtering method of the transmission of any one of the systems, when the transmission is in operation, the intermediate shaft drives the oil pump to operate when rotating, lubricating oil at the bottom of the oil cavity of the transmission is pumped into the oil pump cavity, and before the lubricating oil enters the oil pump, the lubricating oil firstly passes through the oil inlet to adsorb metal impurities in the lubricating oil and then passes through the magnet and the oil filter element to be roughly filtered; when the lubricating oil is discharged from the oil pump, the lubricating oil is pumped out by the oil pump and then becomes the lubricating oil with certain pressure, the lubricating oil enters the filter for fine filtration, and the lubricating oil returns to the inside of the shell for lubrication after passing through the filter.

Preferably, when the filter is clogged, the lubricating oil pushes the safety valve in the first pipeline, passes through the safety valve, enters the second pipeline, and finally returns to the inside of the housing for lubrication.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the lubricating and filtering oil way is designed and improved on the basis of the existing lubricating and filtering oil way of the transmission, and the cleanliness of the whole box in the box body of the transmission assembly is improved, particle impurities in an oil system are reduced, and the oil change mileage is prolonged under the combined action of the magnet, the oil filter element and the oil pump, so that the reliability of the transmission assembly is improved, and the high attendance rate and the high fuel economy are ensured.

Furthermore, the filter is arranged outside the shell, so that the filter can be detached at any time for filter element replacement, the maintenance is convenient, and the requirement on the internal cleanliness of the transmission is further ensured.

Further, set up the relief valve, can be when the filter blocks up, lubricating oil passes through the relief valve from first pipeline and directly gets into the second pipeline, guarantees that the vehicle foundation function is complete smooth and easy.

Further, through the pressure sensor of filter output or relief valve, pressure sensor can in time detect that the filter is stopped up, provides the feedback.

Drawings

FIG. 1 is a schematic diagram of the oil pump oil intake process of the present invention;

FIG. 2 is a schematic view of the oil pump of the present invention;

FIG. 3 is a diagram of the oil pumping process of the oil pump of the present invention;

FIG. 4 is a schematic view of the safety valve of the present invention;

fig. 5 is a structural schematic diagram of the split-type shell of the invention.

Wherein: 1-a shell; 2-an oil inlet; 3-a magnet; 4-an oil filter element; 5-an oil pump; 6-a filter; 7-a safety valve; 8-front end cover; 9-an outer rotor; 10-an inner rotor; 11-inner rotor pin; 12-a platen; 13-hexagon socket head cap screw; 14-a valve body; 15-cylindrical pin; 16-a spring; 17-steel ball; 18-oil ducts; 19-a front section housing; 20-rear section shell.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1, a schematic diagram of a transmission lubrication and lubrication media filter system according to the present invention includes a housing 1, an oil filter 4, an oil pump 5, a filter 6, and a relief valve 7.

The oil cavity is arranged at the bottom of the shell 1, the oil inlet 2 is formed in the shell 1, the magnet 3 is arranged outside the oil inlet 2, and the magnet 3 is fixed at the bottom of the oil inlet 2 of the shell 1 through the internal structure design of the shell 1 to achieve the purpose of adsorbing metal impurities in lubricating oil.

The housing 1 is arranged on the transmission, the end of the housing 1 is connected with the clutch, and the left end part of the housing 1 in fig. 1 is connected with the clutch.

The oil inlet 2 is connected with the input end of an oil pump 5 through an oil filter element 4.

As shown in fig. 2, the oil pump 5 includes a front end cover 8, an outer rotor 9, an inner rotor 10, an inner rotor pin 11, a pressure plate 12 and a hexagon socket head cap 13, wherein the inner rotor 10 and the inner rotor pin 11 are fixedly connected together, the inner rotor 10 and the outer rotor 9 are meshed by a pair of cycloid gear pairs, and the outer rotor 9, the inner rotor 10 and the inner rotor pin 11 are placed together in a cavity of the front end cover 8 through the pressure plate 12 and the hexagon socket head cap screw 13.

An intermediate shaft is provided in the housing 1, and an inner rotor pin 11 is inserted into an intermediate shaft hole.

The output end of the oil pump 5 is communicated with the inside of the shell 1 through the filter 6, a pipeline between the oil pump 5 and the filter 6 is a first pipeline, a pipeline between the filter 6 and the inside of the shell 1 is a second pipeline, a safety valve 7 is arranged between the first pipeline and the second pipeline, an end cap of the safety valve 7 faces the first pipeline, and an oil hole is formed in the joint of the safety valve 7 and the second pipeline.

As shown in fig. 4, the safety valve 7 includes a valve body 14, a cylindrical pin 15, a spring 16 and a steel ball 17, the cylindrical pin 15 is fixed inside the valve body 14, one side of the cylindrical pin 15 facing the first pipeline is fixed with one end of the spring 16, the other end of the spring 16 is fixed with the steel ball 17, an oil hole is arranged on one side of the cylindrical pin 15 facing the second pipeline, and when the safety valve 7 is not touched through, the steel ball 17 blocks the oil hole on the valve body 14 to prevent lubricating oil from passing through the safety valve 7.

Filter 6 arranges in this patent at casing 1 outside, and filter 6 can be dismantled at any time and carry out the filter core change, and easy maintenance further guarantees the inside cleanliness requirement of derailleur, and the oil change mileage is traded in the extension to improve the reliability of derailleur assembly, guarantee high attendance and high fuel economy.

When the system is used, the system comprises the processes of pumping oil into the oil pump 5 and pumping oil out of the oil pump, wherein the flow direction of the oil pumping lubricating oil pumped out by the oil pump 5 is divided into 2 types: 1, after oil is pumped out, the lubricating oil passes through a filter 6 and then enters a transmission assembly; and 2, after the filter element in the filter 6 is blocked, the lubricating oil directly passes through the safety valve 7 assembly and enters the transmission assembly for lubrication without passing through the filter 6.

As shown in fig. 1, the process of the oil pump 5 sucking oil is: the derailleur assembly is at the operation in-process, and it is downthehole that inner rotor round pin 11 inserts the jackshaft, and the jackshaft drives inner rotor round pin 11 and inner rotor 10 and rotates when rotating, and the outer rotor 9 of oil pump 5 and the rotation of inner rotor 10 cycloid gear pair intermeshing rotate, with the lubricating oil pump of 1 oil pocket bottom of casing 5 intracavity, lubricating oil is before getting into oil pump 5, carries out the colating through oil filter core 4 earlier, and oil filter core 4 can filter some big particle impurity, plays the effect of protection oil pump 5 and clean lubricating oil.

As shown in fig. 3, a process of pumping the lubricating oil from the oil pump 5 is: lubricating oil becomes to have the lubricating oil of certain pressure to enter into casing 1 oil duct 18 after 5 pumps of oil pump, enters into the fine filtration of filter 6 afterwards, and wherein filter element filter fineness is high in the filter 6, has advantages such as water-resistance, low pressure loss, high temperature resistance, can further filter less metal and non-metallic impurity in the lubricating oil, and through filter 6 after, lubricating oil gets back to casing 1 again and lubricates.

Another case where the oil pump 5 pumps out oil: when the filter element in the filter 6 is blocked, the lubricating oil does not pass through the filter 6, under the condition of meeting a certain pressure difference, the lubricating oil pushes the steel ball 17 of the safety valve 7, and the steel ball 17 compresses the spring 16, so that the lubricating oil passes through the valve body 14, enters the second pipeline and further enters the shell 1 for lubrication.

6 output of filter or 7 inside pressure sensor that are provided with of relief valve, through the pressure sensor of 6 outputs of filter, when filter 6 in the filter blocks up, lubricating oil does not pass through filter 6, when relief valve 7, the pressure that pressure sensor received reduces, the pressure reducing signal is gone back out to the feedback to can be timely indirect detect filter 6 and be stopped up, provide the feedback to navigating mate, can remind people in time to go to change filter 6's filter core.

The inside pressure sensor of relief valve 7, the setting is in the region of 14 installation springs of valve body, pass through first pipeline as lubricating oil, when filter 6 gets into the second pipeline, lubricating oil does not pass through relief valve 7, therefore the inside pressure sensor of relief valve 7 can not experience pressure, or receive pressure less, pressure sensor does not feedback signal this moment, when filter 6's filter core is plugged up, lubricating oil does not pass through filter 6, lubricating oil promotes relief valve 7's steel ball 17, lubricating oil passes through from valve body 14, pressure sensor feedback signal is triggered to the oil pressure, remind people in time to go to change filter 6's filter core.

The shell 1 can be an integrated shell or a split shell.

When the casing 1 adopts split type casing, as shown in fig. 5, the casing 1 is divided into a front section casing 19 and a rear section casing 20, the left half in fig. 5 is the rear section casing 20, the right half is the front section casing 19, the front end and the rear end of the front section casing 19 and the rear section casing 20 are hermetically connected, an oil passage 18 is formed between the front end and the rear end, the oil filter element 4 is arranged on the rear section casing 20, the oil pump 5 is fixedly connected on the front section casing 19, a pipeline connection is arranged outside the front section casing 19, the oil pump 5 is connected with the filter 6 through a pipeline, the output end of the filter 6 is connected with the front section casing 19 internally, the lubricating medium pumped out by the oil pump 5 directly enters the filter 6 through a pipeline to realize secondary filtration, and finally returns to the front section casing 19 through the filter 6.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.