CN217381563U - Rear-drive manual transmission lubricating system - Google Patents

Abstract

A lubrication system of a rear-drive manual transmission relates to a lubrication system. The front shell, the middle shell and the rear shell are fixedly connected, an output shaft, an input shaft and a middle shaft are arranged in the front shell, the middle shell and the rear shell, the input shaft is fixedly connected with the output shaft, and the middle shaft is arranged in parallel with the input shaft and the output shaft; the intermediate shaft is sleeved with an oil guide nozzle and a lubricating wheel, the input shaft is sleeved with an oil collecting wheel of the input shaft, the output shaft is sleeved with an oil collecting wheel of the output shaft, and the oil guide nozzle, the intermediate shaft and the lubricating wheel are communicated; the input shaft oil collecting wheel, the input shaft, the output shaft and the output shaft oil collecting wheel are communicated. The utility model has compact structure, skillfully utilizes the inner space of each shaft system, and does not influence the three-dimensional size of the transmission; forced oil collection and guide structures are designed on each shaft system, so that lubricating oil can be conducted to each part under each inclined angle of the transmission, and the lubricating effect is stable; because the forced lubrication structure is added, the consumption of lubricating oil of the transmission is less, and the effects of reducing the transmission efficiency and reducing the oil consumption of the engine are achieved.

Description

Rear-drive manual transmission lubricating system

Technical Field

The utility model relates to a lubricating system, especially a back-drive manual transmission lubricating system.

Background

Most of the existing lubrication systems of manual rear-drive transmissions adopt a splash lubrication mode. The lubricating oil pool in the transmission is concentrated at the bottom, the gears immersed in the lubricating oil pool stir and throw out the lubricating oil when rotating, so that the oil splashes upwards and laterally, and the splashed oil enters needle roller bearings and other parts of the gears for lubrication. However, the lubricating effect of the splash lubrication mode is unstable, and under the working condition that the transmission is inclined at a large angle (such as when the whole vehicle goes up and down a slope), the transmission oil pool is deviated to one end, the amount of lubricating oil which can be stirred up by the gear immersed in the oil pool at the other end is reduced, the amount of the splashed oil is reduced, the lubricating effect is reduced, and the risk of the reliability or performance failure of the parts such as the gear, the needle bearing and the like is possibly caused.

One way to reduce this risk is to fill the transmission with more oil, but too much oil increases gear churning losses, resulting in reduced transmission efficiency. One mode is that on the casing of the top of shafting or side, increase and lead oily special part, can collect the gear and stir the fluid that splashes to guide fluid to each position that needs the lubrication, satisfy the lubricated demand of the derailleur of each slope operating mode of derailleur. However, the increase of the oil guide parts above and on the side can cause the increase of the internal space of the transmission shell, the corresponding increase of the external three-dimensional size is not suitable for matching with the whole vehicle cabin, and the weight of the shell is increased, which is not in line with the light weight trend of the transmission; meanwhile, the oil guide part is complex in structure and high in manufacturing and installation cost, so that the overall cost of the transmission is increased.

In order to solve the above problems, a lubrication system with stable lubrication effect, simple and compact structure and less lubricant consumption needs to be developed.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a rear-guard manual transmission lubricating system.

The purpose is achieved, the utility model adopts the following technical proposal: a rear-drive manual transmission lubricating system comprises a rear shell, an output shaft oil collecting wheel, a middle shell, an input shaft oil collecting wheel, a lubricating wheel, an oil guide nozzle, a front shell, an output shaft, an input shaft and an intermediate shaft; the front shell, the middle shell and the rear shell are fixedly connected in parallel from front to back in sequence, an output shaft, an input shaft and an intermediate shaft are arranged inside the front shell, the middle shell and the rear shell, the input shaft and the output shaft are fixedly connected in a coaxial mode, and the intermediate shaft, the input shaft and the output shaft are arranged in parallel; the outer side of the intermediate shaft is sequentially sleeved with an oil guide nozzle and a lubricating wheel from front to back, the outer side of the input shaft is sleeved with an oil collecting wheel of the input shaft, the outer side of the output shaft is sleeved with an oil collecting wheel of the output shaft, and the oil guide nozzle, the intermediate shaft and the lubricating wheel are communicated; the input shaft oil collecting wheel, the input shaft, the output shaft and the output shaft oil collecting wheel are communicated.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses design lubricating system on current manual transmission structure basis, increase lubricated wheel and oil collecting wheel at the both ends of shafting and carry out fluid collection, the epaxial centre bore of cooperation and oil drain hole guide lubricating oil reach each and keep off bearing and lubricate, and lubricated effect is stable. The structure is compact, the internal space of each shaft system is ingeniously utilized, and the three-dimensional size of the transmission is not influenced; forced oil collection and guide structures are designed on each shaft system, so that lubricating oil can be conducted to each part under each inclined angle of the transmission, and the lubricating effect is stable; because the forced lubrication structure is added, the consumption of lubricating oil of the transmission is less, and the effects of reducing the transmission efficiency and reducing the oil consumption of the engine are achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view showing the connection relationship among the input shaft, the intermediate shaft, the output shaft oil collecting wheel, the input shaft oil collecting wheel, the lubricating wheel and the oil guide nozzle;

FIG. 3 is a schematic structural view of an input shaft;

FIG. 4 is a schematic diagram of the oil collecting wheel of the input shaft;

FIG. 5 is a schematic view showing the connection between the input shaft and the oil collecting wheel of the input shaft;

FIG. 6 is a schematic view of the output shaft;

FIG. 7 is a schematic structural diagram of an oil collecting wheel of an output shaft;

FIG. 8 is a schematic view showing the connection relationship between the output shaft and the oil collecting wheel of the output shaft;

FIG. 9 is a schematic structural view of the intermediate shaft;

FIG. 10 is a schematic view of the structure of the oil delivery nozzle;

FIG. 11 is a schematic view of the structure of the lubricating wheel;

FIG. 12 is a schematic view of the connection of the lubricated wheel to the countershaft;

FIG. 13 is a schematic view of the connection of the oil deflector to the rear housing;

FIG. 14 is a schematic diagram showing the positional relationship of the oil collecting wheel, the lubricating wheel and the oil baffle of the output shaft;

fig. 15 is a schematic diagram of the transmission state when the entire vehicle is uphill, in which: 13 is the lubricating oil level;

FIG. 16 is a schematic diagram of the transmission state when the vehicle is downhill, wherein: and 13 is the lubricating oil level.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, rather than the whole embodiment, and all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention based on the embodiment of the present invention.

A lubrication system of a rear-drive manual transmission comprises a rear shell 1, an output shaft oil collecting wheel 3, a middle shell 5, an input shaft oil collecting wheel 7, a lubrication wheel 9, an oil guide nozzle 11, a front shell 12, an output shaft 4, an input shaft 6 and an intermediate shaft 10; the front shell 12, the middle shell 5 and the rear shell 1 are fixedly connected in parallel from front to back in sequence, an output shaft 4, an input shaft 6 and an intermediate shaft 10 are arranged inside the front shell 12, the middle shell 5 and the rear shell 1, the input shaft 6 and the output shaft 4 are coaxially and fixedly connected, and the intermediate shaft 10, the input shaft 6 and the output shaft 4 are arranged in parallel; an oil guide nozzle 11 and a lubricating wheel 9 are sequentially sleeved on the outer side of the intermediate shaft 10 from front to back, the lubricating wheel 9 rotates along with the intermediate shaft 10, an input shaft oil collecting wheel 7 is sleeved on the outer side of the input shaft 6, the input shaft oil collecting wheel 7 rotates along with the input shaft 6, an output shaft oil collecting wheel 3 is sleeved on the outer side of the output shaft 4, the output shaft oil collecting wheel 3 rotates along with the output shaft 4, and the oil guide nozzle 11, the intermediate shaft 10 and the lubricating wheel 9 are communicated; the input shaft oil collecting wheel 7, the input shaft 6, the output shaft 4 and the output shaft oil collecting wheel 3 are communicated. A rear bearing 2 is arranged between the output shaft oil collecting wheel 3 and the output shaft 4, a front bearing 8 is arranged between the input shaft oil collecting wheel 7 and the input shaft 6, and the rear bearing 2 and the front bearing 8 are both sealing bearings. The input shaft oil collecting wheel 7 is mounted on the rear side of the front bearing 8, and the output shaft oil collecting wheel 3 is mounted on the front side of the rear bearing 2.

When the transmission inclines at a large angle, for example, the angles of 16.7 degrees of uphill slope and 16.7 degrees of downhill slope are according to the national standard design requirements of an oil pan of an automobile engine, the oil collecting impeller 7 of the input shaft or the oil collecting impeller 3 of the output shaft can be immersed in an oil pool to play a role of forced oil collection, and the lubricating effect on needle roller bearings of all gears is ensured to be stable.

The middle part of input shaft 6 is equipped with input shaft centre bore 603 along its axial, and the front end of the outer wall of input shaft 6 is equipped with a plurality of input shaft oil inlets 602 along its circumference equipartition, and the rear end of the outer wall of input shaft 6 is equipped with a plurality of input shaft oil outlets 604 along its circumference equipartition, a plurality of input shaft oil inlets 602 and a plurality of input shaft oil outlets 604 all set up with input shaft centre bore 603 intercommunication.

The input shaft oil collecting wheel 7 comprises an input shaft oil collecting wheel body and a plurality of input shaft oil collecting wheel oil collecting grooves 702, the input shaft oil collecting wheel body is sleeved on the outer side of the input shaft 6, the input shaft oil collecting wheel 7 rotates together with the input shaft 6 through an input shaft flat key 601 and an input shaft oil collecting wheel flat key 701, the input shaft oil collecting wheel body is uniformly provided with the input shaft oil collecting wheel oil collecting grooves 702 along the circumferential direction, an oil collecting port 703 of the input shaft oil collecting wheel oil collecting groove 702 is communicated with a corresponding input shaft oil inlet 602, each input shaft oil collecting wheel oil collecting groove 702 is of a structure with a wide oil inlet and a narrow oil collecting port, and lubricating oil is pressed into the inner side from the outer side to form a forced oil collecting effect.

When the input shaft oil collecting wheel 7 rotates, the input shaft oil collecting wheel oil collecting groove 702 can collect lubricating oil forcibly, and the collected lubricating oil reaches the needle roller bearings of the gear blocks along the input shaft oil collecting wheel oil collecting groove 702, the input shaft oil collecting wheel oil collecting groove oil collecting port 703, the input shaft oil inlet hole 602, the input shaft central hole 603 and the input shaft oil outlet holes 604 in sequence to lubricate the needle roller bearings.

The middle part of the output shaft 4 is provided with an output shaft center hole 403 along the axial direction, the rear end of the outer wall of the output shaft 4 is uniformly provided with a plurality of output shaft oil inlets 402 along the circumferential direction, the front end of the outer wall of the output shaft 4 is uniformly provided with a plurality of output shaft oil outlets 404 along the circumferential direction, the plurality of output shaft oil inlets 402 and the plurality of output shaft oil outlets 404 are communicated with the output shaft center hole 403, and the output shaft center hole 403 is communicated with the input shaft center hole 603.

The output shaft oil collecting wheel 3 comprises an output shaft oil collecting wheel body and a plurality of output shaft oil collecting wheel oil collecting grooves 302, the output shaft oil collecting wheel body is sleeved on the outer side of the output shaft 4, the output shaft oil collecting wheel 3 rotates together with the output shaft 4 through an output shaft flat key 401 and an output shaft oil collecting wheel flat key 301, the output shaft oil collecting wheel body is uniformly provided with the output shaft oil collecting wheel oil collecting grooves 302 along the circumferential direction, oil collecting ports 303 of the output shaft oil collecting wheel oil collecting grooves 302 are respectively communicated with corresponding output shaft oil inlet holes 402, each output shaft oil collecting wheel oil collecting groove 302 is of a structure with a wide oil inlet and a narrow oil inlet, lubricating oil is pressed into the inner side from the outer side to form a forced oil collecting effect, and the output shaft oil collecting wheel oil collecting grooves 302 are arranged towards the rear bearing 2.

When the output shaft oil collecting wheel 3 rotates, the output shaft oil collecting wheel oil collecting groove 302 can forcibly collect lubricating oil, the collected lubricating oil enters the output shaft central hole 403 and the input shaft central hole 603 along the output shaft oil collecting wheel oil collecting groove 302, the output shaft oil collecting wheel oil collecting groove oil collecting port 303 and the output shaft oil inlet hole 402 in sequence, and then is discharged from the output shaft oil outlet hole 404 and the input shaft oil outlet hole 604, so that needle roller bearings of all gears are lubricated.

The middle part of jackshaft 10 is equipped with jackshaft centre bore 1003 along its axial, and the front end of jackshaft 10 outer wall is equipped with a plurality of jackshaft inlet ports 1002 along its circumference equipartition, and the middle part of jackshaft 10 outer wall is equipped with a plurality of jackshaft oil outlet 1004 along its circumference equipartition, a plurality of jackshaft inlet ports 1002 and a plurality of jackshaft oil outlet 1004 all communicate the setting with jackshaft centre bore 1003.

The oil guide nozzle 11 comprises an ear plate 1101, an oil guide nozzle oil inlet 1102, an oil guide nozzle oil collecting tank 1103 and an oil guide nozzle oil outlet 1104; it can store up lubricating oil to lead glib talker and deposit oil groove 1103, and the one end of leading glib talker oil groove 1103 is equipped with leads glib talker oil inlet 1102, and the middle part of leading glib talker oil groove 1103 is equipped with leads glib talker and goes out glib talker 1104, and the outer wall of leading glib talker oil groove 1103 is equipped with a plurality of otic placodes 1101 along its circumference equipartition, otic placode 1101 is inlayed on procapsid 12, lead glib talker oil inlet 1102 and casing oil groove intercommunication setting, lead glib talker and go out glib talker 1104 and jackshaft centre bore 1003 intercommunication setting, will lead the glib talker and deposit the oil that oil groove 1103 stored and lead into jackshaft centre bore 1003 in.

The lubricating wheel 9 comprises a lubricating wheel body, a plurality of lubricating wheel oil grooves 902 and a plurality of oil stirring blades 904, the lubricating wheel body is sleeved on the outer side of the intermediate shaft 10, the outer wall of the lubricating wheel body penetrates through the wall thickness of the lubricating wheel body and is provided with a plurality of pin holes, the lubricating wheel body and the intermediate shaft 10 are fixedly connected through fixing pins arranged in the pin holes, the lubricating wheel 9 realizes one-way rotation with the intermediate shaft 10 through an intermediate shaft flat key 1001 and a lubricating wheel flat key 901, the outer wall of the lubricating wheel body is uniformly provided with the plurality of oil stirring blades 904 along the circumferential direction, when the lubricating wheel 9 rotates, the oil stirring blades 904 can stir up lubricating oil, the end surface of the lubricating wheel body is uniformly provided with the plurality of lubricating wheel oil grooves 902 along the circumferential direction, each lubricating wheel oil groove port 903 of the lubricating wheel oil grooves 902 is respectively communicated with the corresponding intermediate shaft oil inlet hole 1002, and the lubricating oil collected by the lubricating wheel oil grooves 902 passes through the lubricating wheel oil groove ports 903 and the intermediate shaft oil inlet hole 1002 The countershaft center hole 1003.

Every the both sides wall of stirring oil blade 904 is by preceding wedge face to the back slope, the oil duct setting on the casing behind the wedge face corresponds, and the wedge is leading towards lubricating oil, and when lubricating wheel 9 was rotatory along with jackshaft 10, stirring oil blade 904 can be stirred lubricating oil towards the oil duct direction of rear housing, and the oil duct of casing after the oil droplet that splashes that is stirred concentrates on getting into reachs output shaft oil blanket department and lubricates. Wherein the number of the oil stirring blades and the angle of the inclined plane of the wedge-shaped surface can be properly adjusted according to the actual lubricating requirement.

The front end face of each oil mixing blade 904 is provided with a weight reduction groove for reducing the weight of a part, and the structural size of the weight reduction groove can be adjusted according to the actual shape of the part.

Each lubricating wheel oil collecting groove 902 is of a structure with a wide oil inlet and a narrow oil collecting opening, and lubricating oil is pressed into the inner side from the outer side to form a forced oil collecting effect.

The rear end part of the lubricating wheel body is provided with an exhaust hole which is communicated with the center hole of the intermediate shaft and used for balancing the air pressure in the center hole of the intermediate shaft.

When the lubricating wheel 9 rotates along with the intermediate shaft 10, the oil stirring blades 904 stir up the lubricating oil. When the lubricating wheel 9 rotates, the lubricating wheel oil collecting tank 902 can forcibly collect lubricating oil, the collected lubricating oil enters the intermediate shaft central hole 1003 along the lubricating wheel oil collecting tank 902, the lubricating wheel oil collecting tank oil collecting port 903 and the intermediate shaft oil inlet hole 1002 in sequence, and then reaches the needle roller bearings of the gear stages from the plurality of intermediate shaft oil outlet holes 1004 together with the oil introduced by the oil guide nozzle 11 to lubricate the needle roller bearings.

An oil baffle plate 101 is arranged in the rear shell 1, the oil baffle plate 101 is positioned between the output shaft oil collecting wheel 3 and the lubricating wheel 9, and oil stirred by the oil stirring blades 904 is shielded and guided by the oil baffle plate 101 on the rear shell 1, splashes to the right upper side and is further collected by the output shaft oil collecting wheel 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. A lubrication system of a rear-drive manual transmission comprises a rear shell (1), a middle shell (5), a front shell (12), an output shaft (4), an input shaft (6) and an intermediate shaft (10); the front shell (12), the middle shell (5) and the rear shell (1) are fixedly connected in parallel from front to back in sequence, an output shaft (4), an input shaft (6) and an intermediate shaft (10) are arranged inside the front shell (12), the middle shell (5) and the rear shell (1), the input shaft (6) is fixedly connected with the output shaft (4) in a coaxial mode, and the intermediate shaft (10) is arranged in parallel with the input shaft (6) and the output shaft (4); the method is characterized in that: the lubricating system also comprises an output shaft oil collecting wheel (3), an input shaft oil collecting wheel (7), a lubricating wheel (9) and an oil guide nozzle (11); the oil guide nozzle (11) and the lubricating wheel (9) are sequentially sleeved on the outer side of the intermediate shaft (10) from front to back, the input shaft oil collecting wheel (7) is sleeved on the outer side of the input shaft (6), the output shaft oil collecting wheel (3) is sleeved on the outer side of the output shaft (4), and the oil guide nozzle (11), the intermediate shaft (10) and the lubricating wheel (9) are communicated; the input shaft oil collecting wheel (7), the input shaft (6), the output shaft (4) and the output shaft oil collecting wheel (3) are communicated.

2. The lubrication system for a rear drive manual transmission according to claim 1, wherein: the middle part of input shaft (6) is equipped with input shaft centre bore (603), and the front end of input shaft (6) outer wall is equipped with a plurality of input shaft inlet ports (602), and the rear end of input shaft (6) outer wall is equipped with a plurality of input shaft oil outlet (604), a plurality of input shaft inlet ports (602) and a plurality of input shaft oil outlet (604) all set up with input shaft centre bore (603) intercommunication.

3. A rear drive manual transmission lubrication system according to claim 2, wherein: input shaft oil collecting wheel (7) are including input shaft oil collecting wheel body and a plurality of input shaft oil collecting wheel oil sumps (702), input shaft oil collecting wheel body suit is in the outside of input shaft (6), and input shaft oil collecting wheel body is equipped with a plurality of input shaft oil collecting wheel oil sumps (702), every along its circumference equipartition input shaft oil collecting wheel oil sumps (703) of input shaft oil collecting wheel oil sumps (702) respectively with input shaft inlet port (602) intercommunication setting that corresponds.

4. A rear drive manual transmission lubrication system according to claim 2 or 3, characterised in that: the middle part of output shaft (4) is equipped with output shaft centre bore (403), and the rear end of output shaft (4) outer wall is equipped with a plurality of output shaft inlet ports (402), and the front end of output shaft (4) outer wall is equipped with a plurality of output shaft oil outlet (404), a plurality of output shaft inlet ports (402) and a plurality of output shaft oil outlet (404) all communicate the setting with output shaft centre bore (403) to output shaft centre bore (403) and input shaft centre bore (603) intercommunication set up.

5. The lubrication system for a rear drive manual transmission according to claim 4, wherein: the output shaft oil collecting wheel (3) comprises an output shaft oil collecting wheel body and a plurality of output shaft oil collecting wheel oil collecting grooves (302), the output shaft oil collecting wheel body is sleeved on the outer side of the output shaft (4), the output shaft oil collecting wheel body is uniformly provided with the output shaft oil collecting wheel oil collecting grooves (302) along the circumferential direction of the output shaft oil collecting wheel body, and oil collecting ports (303) of the output shaft oil collecting wheel oil collecting grooves (302) are respectively communicated with corresponding output shaft oil inlet holes (402).

6. A rear drive manual transmission lubrication system according to claim 1 or 5, characterised in that: the middle part of jackshaft (10) is equipped with jackshaft centre bore (1003), and the front end of jackshaft (10) outer wall is equipped with a plurality of jackshaft inlet ports (1002), and the middle part of jackshaft (10) outer wall is equipped with a plurality of jackshaft oil outlet (1004), a plurality of jackshaft inlet ports (1002) and a plurality of jackshaft oil outlet (1004) all set up with jackshaft centre bore (1003) intercommunication.

7. The lubrication system for a rear drive manual transmission according to claim 6, wherein: the oil guide nozzle (11) comprises an ear plate (1101), an oil guide nozzle oil inlet (1102), an oil guide nozzle oil collecting tank (1103) and an oil guide nozzle oil outlet nozzle (1104); lead the one end of glib oil sump (1103) and be equipped with and lead glib oil inlet (1102), lead the middle part of glib oil sump (1103) and be equipped with and lead glib oil outlet (1104), lead the outer wall of glib oil sump (1103) and be equipped with a plurality of otic placodes (1101) along its circumference equipartition, otic placode (1101) are inlayed on procapsid (12), lead glib oil inlet (1102) and casing oil groove intercommunication setting, lead glib oil outlet (1104) and jackshaft centre bore (1003) intercommunication setting.

8. The lubrication system for a rear drive manual transmission according to claim 7, wherein: moist pulley (9) are including moist pulley wheel body, a plurality of lubricated wheel oil trap (902) and a plurality of oil mixing blade (904), moist pulley wheel body suit is in the outside of jackshaft (10), and lubricated wheel body is equipped with a plurality of oil mixing blade (904) along its circumference equipartition, and the terminal surface of moist pulley wheel body is equipped with a plurality of lubricated wheel oil trap (902) along its circumference equipartition, every lubricated wheel oil trap oil catch bowl (903) of moist pulley oil trap (902) set up with jackshaft inlet port (1002) intercommunication that corresponds respectively.

9. A rear drive manual transmission lubrication system according to claim 5 or 8, characterised in that: an oil baffle plate (101) is arranged in the rear shell (1), and the oil baffle plate (101) is positioned between the output shaft oil collecting wheel (3) and the lubricating wheel (9).

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