CN110645339A - Integral oil distributor - Google Patents
Integral oil distributor Download PDFInfo
- Publication number
- CN110645339A CN110645339A CN201910872272.3A CN201910872272A CN110645339A CN 110645339 A CN110645339 A CN 110645339A CN 201910872272 A CN201910872272 A CN 201910872272A CN 110645339 A CN110645339 A CN 110645339A
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- Prior art keywords
- oil
- distribution disc
- groove
- oil distribution
- bolt
- Prior art date
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Links
- 238000009826 distribution Methods 0.000 claims abstract description 66
- 230000003014 reinforcing effect Effects 0.000 claims description 30
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000005266 casting Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Details Of Gearings (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses an integral oil distributor, and relates to the technical field of oil distributors; the oil distribution disc comprises an oil distribution disc, a guide wheel shaft positioned in the middle of the oil distribution disc, a plurality of oil ducts positioned in the oil distribution disc, oil inlet holes positioned at the end parts of the oil ducts, and bolt holes positioned at the edge of the oil distribution disc, wherein the oil distribution disc and the guide wheel shaft are of an integrally formed structure, and a plurality of lightening holes are formed in the oil distribution disc. The invention provides an integral oil distributor which is simple to process and light in weight. In addition, the anti-theft and anti-loosening functions can be realized.
Description
Technical Field
The invention belongs to the technical field of oil distributors, and particularly relates to an integral oil distributor.
Background
The traditional oil distributor comprises an oil distribution disc and a guide wheel shaft, wherein the oil distribution disc of the traditional oil distributor is in interference fit press-fitting connection with the guide wheel shaft. The interference fit has the quality defect of hydraulic leakage caused by the reduction of the sealing performance of the oil distributor due to improper interference of the matching surface or surface damage of the matching surface in the processes of manufacturing and press mounting of parts. In addition, the interference magnitude has a large influence on the performance of the oil distribution disc, when the interference magnitude is too large, the plane of the oil distribution disc is deformed due to matching, and when the interference magnitude is too small, the strength of the oil separator for resisting torque is reduced. Therefore, in order to ensure proper interference of the matching surface, the dimensional accuracy and the surface roughness of the matching part of the oil distribution disc and the guide wheel shaft have strict requirements, the quality requirement of the manufacturing and press-fitting process is high, and the manufacturing cost is increased. In addition, the oil distribution disc is of a cake-shaped structure and is heavy.
Patent No. CN109681619A, the patent name "an oil distribution system and an oil distribution disc assembly of a gearbox"; the oil distribution system of the gearbox comprises the gearbox and an oil distribution disc assembly, wherein the oil distribution disc assembly comprises an oil distribution disc and a disc shaft, the oil distribution disc comprises a sleeve and a disc body, and the disc shaft is press-mounted on the oil distribution disc; the oil distribution disc is arranged on a shell of the gearbox, and the sleeve is inserted into a control cavity of a clutch in the gearbox; the disc body is provided with a first oil duct, the sleeve is provided with a first oil hole, the press-fitting surface of the disc shaft is provided with a first oil groove, and the first oil duct and the first oil hole are communicated with the first oil groove; the first oil duct is provided with a first oil port for oil inlet. The present invention still has high production requirements.
Disclosure of Invention
The invention aims to overcome the defects of high processing requirement and heavy weight in the prior art, and provides an integral oil distributor which is simple to process and light in weight.
In order to achieve the purpose, the invention adopts the following technical scheme:
the integral oil distributor comprises an oil distribution disc, a guide wheel shaft positioned in the middle of the oil distribution disc, a plurality of oil ducts positioned in the oil distribution disc, oil inlet holes positioned at the end parts of the oil ducts, and bolt holes positioned at the edge of the oil distribution disc, wherein the oil distribution disc and the guide wheel shaft are of an integrally formed structure, the oil distribution disc is provided with a plurality of lightening holes, the oil distribution disc is provided with reinforcing ribs at corresponding positions of the oil ducts, the oil ducts are positioned in the reinforcing ribs, the oil distribution disc comprises an annular framework and a second reinforcing rib, one end of the second reinforcing rib is fixedly connected onto the framework, the other end of the second reinforcing rib is fixedly connected onto the guide wheel shaft, the framework, the second reinforcing rib and the. The oil distribution disc and the guide wheel shaft are integrally formed, in order to meet the requirement that the oil duct of the integral oil distributor is communicated, a five-axis machining center and a casting technology are combined to communicate the oil duct, and meanwhile, the machining efficiency is improved (each oil duct is machined by one-time clamping); and part of the oil ducts are communicated by being designed into inclined holes (processed by a five-axis machining center), and part of the oil ducts are communicated by being designed into a casting structure, so that all the oil ducts are ensured to meet the use requirements of products. The weight of the lightening hole is reduced by more than 30 percent. The reinforcing ribs improve the rigidity, strength and stability of the invention, and the second reinforcing ribs improve the strength, rigidity and stability of the invention.
Preferably, the oil distribution disc is provided with the bolt holes at the positions corresponding to the oil inlet holes. The bolt hole is arranged at the edge of the oil distribution disc, and the oil inlet hole ensures the stability of the transmission oil, so the bolt hole is arranged near the oil inlet hole.
Preferably, the oil distribution disc and the guide wheel shaft are made of nodular cast iron. The strength requirement is met by utilizing a high-strength ductile iron casting material, a guide wheel shaft in the prior art is made of ordinary carbon steel No. 45 (the breaking strength is 600MPa, and the yield strength is 355 MPa), and the ductile iron QT600-3 (the breaking strength is 600MPa and the yield strength is 370 MPa) is designed and used in the embodiment and can completely meet the use requirement.
Preferably, the second ribs and a part of the ribs are radially distributed around the axis of the idler shaft. The circumferential strength of the guide wheel shaft is ensured to be uniform.
Preferably, a fixing bolt used for fixedly connecting the oil distribution disc on the gearbox is inserted in the bolt hole, the fixing bolt comprises a stud and a bolt head, the cross section of the bolt head is circular, a groove used for accommodating the bolt head is arranged in the position, corresponding to the bolt hole, of the oil distribution disc, an annular slot is formed in the inner side wall of the groove, a wrench inserting groove used for inserting a wrench is formed in one side, away from the stud, of the bolt head, two through sliding grooves are formed in the inner side wall of the wrench inserting groove, one end of each sliding groove faces the wrench groove, the other end of each sliding groove faces the slot, an inserting piece is connected in each sliding groove in a sliding mode and is symmetrical with the circle center of the cross section of the bolt head, a wire collecting groove parallel to the axis of the stud is formed in the groove bottom of the wrench groove, a spring and a pull wire are arranged between the two inserting pieces, the pull wire corresponds to the take-up groove. When the spanner is taken out, the inserted sheet is embedded into the slot, and when the fixing bolt is not flexible, the inserted sheet prevents the bolt head from moving towards the direction of the moving stud, so that the fixing bolt is prevented from being flexible.
Preferably, the cross section of the wrench groove is a regular hexagon. And rotating the fixing bolt by adopting an inner hexagonal wrench.
Preferably, the bolt head is matched with the groove, an annular anti-theft and anti-loosening groove is formed between the bolt head and the groove, and the groove width of the anti-theft and anti-loosening groove is 80% -90% of the thickness of the inserting sheet. At the moment, if someone wants to use a common socket head cap wrench to dismount the oil distributor privately, the inserting piece is always in the slot, when the fixing bolt is rotated, the sliding groove moves upwards, the sliding groove is staggered with the slot, the inserting piece is bent, the inserting piece is deformed into an S shape, the middle part of the inserting piece is embedded into the anti-theft anti-loosening groove, the groove width of the anti-theft anti-loosening groove is 80% -90% of the thickness of the inserting piece, the inserting piece can be clamped in the anti-theft anti-loosening groove, the socket head cap wrench cannot continuously rotate the fixing bolt, the fixing bolt cannot be screwed out, and therefore the anti-theft effect of the oil distributor is. In a similar way, when the fixing bolt is loosened, the inserting pieces also play a role in preventing looseness.
The invention has the beneficial effects that: the invention provides an integral oil distributor which is simple to process and light in weight. In addition, the anti-theft and anti-loosening functions can be realized.
Drawings
FIG. 1 is a schematic view of example 1;
FIG. 2 is a side view of embodiment 1;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic view of a bolt hole and a fixing bolt;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is a schematic view of the wrench tightening the anchor bolts;
FIG. 7 is a schematic view of the wrench as it is being withdrawn from the wrench slot;
FIG. 8 is a schematic view of an insert as it is deformed.
In the figure: the anti-theft anti-loosening device comprises an oil distribution disc 1, a guide wheel shaft 2, an oil duct 3, reinforcing ribs 4, lightening holes 5, a framework 6, a second reinforcing rib 7, a stud 8, a bolt head 9, a groove 10, a gearbox 11, a slot 12, a wrench groove 13, a wrench 14, an inserting piece 15, a sliding groove 16, a take-up groove 17, a spring 18, a pull wire 19, an anti-theft anti-loosening groove 20, an inserting rod 21, a limiting groove 22, a bolt hole 23 and an oil inlet hole 24.
Detailed Description
The invention is explained in further detail below with reference to the figures and the detailed description:
example 1:
referring to fig. 1 to 3, the integral oil distributor comprises an oil distribution disc 1, a guide wheel shaft 2 positioned in the middle of the oil distribution disc 1, a plurality of oil passages 3 positioned in the oil distribution disc 1, oil inlet holes 24 positioned at the end parts of the oil passages 3, and bolt holes 23 positioned at the edge of the oil distribution disc 1, wherein the oil distribution disc 1 and the guide wheel shaft 2 are of an integrally formed structure, and the oil distribution disc 1 and the guide wheel shaft 2 are made of nodular cast iron; a plurality of lightening holes 5 are formed in the oil distribution disc 1; the oil distribution disc 1 is provided with a reinforcing rib 4 at a position corresponding to the oil duct 3, and the oil duct 3 is positioned in the reinforcing rib 4; the oil distribution disc 1 is provided with the bolt holes 23 at the positions corresponding to the oil inlet holes 24; the oil distribution disc 1 comprises an annular framework 6 and a second reinforcing rib 7, one end of the second reinforcing rib is fixedly connected to the framework 6, the other end of the second reinforcing rib 7 is fixedly connected to the guide wheel shaft 2, the framework 6, the second reinforcing rib 7 and the reinforcing rib 4 enclose the lightening hole 5, and the bolt hole 23 is located on the framework 6; the second reinforcing ribs 7 and a part of the reinforcing ribs 4 are distributed in a radial manner by taking the axis of the guide wheel shaft 2 as the center.
The principle of the embodiment is as follows:
the traditional oil distributor comprises an oil distribution disc 1 and a guide wheel shaft 2, wherein the oil distribution disc 1 and the guide wheel shaft 2 of the traditional oil distributor are in interference fit press-fitting connection. The interference fit has the quality defect of hydraulic leakage caused by the reduction of the sealing performance of the oil distributor due to improper interference of the matching surface or surface damage of the matching surface in the processes of manufacturing and press mounting of parts. In addition, the interference magnitude has a large influence on the performance of the oil distribution disc, when the interference magnitude is too large, the plane of the oil distribution disc is deformed due to matching, and when the interference magnitude is too small, the strength of the oil separator for resisting torque is reduced. Therefore, in order to ensure proper interference of the matching surface, the dimensional accuracy and the surface roughness of the matching part of the oil distribution disc and the guide wheel shaft have strict requirements, the quality requirement of the manufacturing and press-fitting process is high, and the manufacturing cost is increased.
In the embodiment, the oil distribution disc 1 and the guide wheel shaft 2 are integrally formed, an integral structure is adopted, nodular cast iron is used as a material, and the torsional strength requirement of the oil distributor is met. Due to the adoption of the integral structure, the structure is simplified, and the manufacturing cost is reduced. In the embodiment, the strength requirement is met by utilizing a high-strength ductile iron casting material, the guide wheel shaft in the prior art is made of ordinary carbon steel No. 45 (the breaking strength is 600MPa, and the yield strength is 355 MPa), and the ductile iron QT600-3 (the breaking strength is 600MPa, and the yield strength is 370 MPa) is designed and used in the embodiment and can completely meet the use requirement.
The lightening holes 5 are formed in the oil distribution disc 1, the use of materials is reduced, the weight is reduced by more than 30%, and meanwhile, the strength of the oil distribution disc 1 is guaranteed to meet requirements in a mode of integrating the reinforcing ribs and the oil passages 3.
The second reinforcing ribs 7 and part of the reinforcing ribs are distributed in a radiation mode by taking the shaft of the guide wheel shaft 2 as the center, the circumferential strength of the guide wheel shaft 2 is uniform, and the rigidity and the strength of the framework 6 are improved by the second reinforcing ribs 7. Bolt holes 23 are arranged at the edge of the oil distribution pan 1, and oil inlet holes ensure stability of the transfer oil, so the bolt holes 23 are provided near the oil inlet holes.
Example 2:
see fig. 4-8; in the embodiment, the bolt hole 23 and the fixing bolt are improved on the basis of embodiment 1, specifically as follows:
a fixing bolt used for fixedly connecting the oil distribution disc 1 on the gearbox 11 is inserted into the bolt hole 23, the fixing bolt comprises a stud 8 and a bolt head 9, the cross section of the bolt head 9 is circular, a groove 10 used for accommodating the bolt head 9 is formed in the position, corresponding to the bolt hole 23, of the oil distribution disc 1, an annular slot 12 is formed in the inner side wall of the groove 10, a wrench 14 used for being inserted into a wrench groove 13 is formed in one side, away from the stud 8, of the bolt head 9, and the cross section of the wrench groove 13 is in a regular hexagon shape; the wrench 14 is a specially-made hexagon socket wrench, two through sliding grooves 16 are formed in the inner side wall of the wrench groove 13, one ends of the sliding grooves 16 face the wrench groove 13, the other ends of the sliding grooves 16 face the slot 12, an inserting piece 15 is connected in each sliding groove 16 in a sliding mode, the inserting pieces 15 are symmetrical around the circle center of the cross section of the bolt head 9, a wire take-up groove 17 parallel to the axis of the stud 8 is formed in the bottom of the wrench groove 13, a spring 18 and a pull wire 19 are arranged between the two inserting pieces 15, two ends of the spring 18 are connected to the inserting pieces 15 on two sides of the spring, two ends of the pull wire 19 are connected to the inserting pieces 15 on two sides of the pull wire 19, and the pull wire 19; the bolt head 9 is matched with the groove 10, an annular anti-theft anti-loosening groove 20 is formed between the bolt head 9 and the groove 10, and the groove width of the anti-theft anti-loosening groove 20 is 80% -90% of the thickness of the inserting sheet 15.
The principle of the embodiment is as follows:
the oil distributor is complex in stress when in use, the oil distributor is fixed on the gearbox 11 through a bolt, the bolt is easy to loosen, a specially-made inner hexagonal wrench is needed to be used, an insertion rod 21 matched with the take-up groove 17 is fixedly connected to the end of the inner hexagonal wrench, and a limiting groove 22 is formed in one end, far away from the inner hexagonal wrench, of the insertion rod 21.
In an initial state, under the action of a spring 18, a stay wire 19 is straightened, one end of each insertion piece 15 is exposed outside a bolt head 9, the stay wire 19 is embedded into a limiting groove 22, then an insertion rod 21 is inserted into a wire collecting groove 17, the stay wire 19 is brought into the wire collecting groove 17, the two insertion pieces 15 are close to each other, one end of each insertion piece 15, which is originally exposed outside the bolt head 9, enters a sliding groove 16, at the moment, the end part of an inner hexagonal wrench abuts against the insertion piece 15, then a fixing bolt is screwed, a gearbox 11 and an oil distributor are fixed together, then the inner hexagonal wrench is drawn out, the insertion rod 21 is drawn out of the wire collecting groove 17, under the action of the spring 18, the insertion pieces 15 move towards a slot 12, finally, the stay wire 19 is straightened, and the.
At the moment, if someone wants to use a common socket head wrench to dismount the oil distributor privately, the inserting piece 15 is always in the slot 12, when the fixing bolt is rotated, the sliding groove 16 moves upwards, the sliding groove 16 is staggered with the slot 12, the inserting piece 15 is bent, the inserting piece 15 deforms in an S shape, the middle part of the inserting piece 15 is embedded into the anti-theft anti-loosening groove 20, the groove width of the anti-theft anti-loosening groove 20 is 80% -90% of the thickness of the inserting piece 15, the inserting piece 15 can be clamped in the anti-theft anti-loosening groove 20, the socket head wrench cannot rotate the fixing bolt continuously, the fixing bolt cannot be screwed out, and therefore the anti-theft effect of the oil distributor is achieved.
Similarly, when the fixing bolt is loosened, the inserting piece 15 also plays a role in preventing looseness.
Claims (7)
1. The integral oil distributor is characterized in that the oil distribution disc and the guide wheel shaft are of an integrally formed structure, a plurality of lightening holes are formed in the oil distribution disc, reinforcing ribs are arranged at the corresponding positions of the oil passages of the oil distribution disc, the oil passages are located in the reinforcing ribs, the oil distribution disc comprises an annular framework and a second reinforcing rib, one end of the second reinforcing rib is fixedly connected to the framework, the other end of the second reinforcing rib is fixedly connected to the guide wheel shaft, the framework, the second reinforcing rib and the reinforcing ribs surround the lightening holes, and the bolt holes are located in the framework.
2. The integral oil distributor according to claim 1, wherein the oil distribution disc is provided with the bolt holes at positions corresponding to the oil inlet holes.
3. The integral oil distributor according to claim 1, wherein the oil distribution disc and the guide wheel shaft are made of nodular cast iron.
4. The integral oil distributor according to claim 1, wherein the second ribs and a portion of the ribs are radially disposed about the axis of the guide axle.
5. The integral oil distributor according to claim 1, 2, 3 or 4, wherein a fixing bolt for fixedly connecting an oil distribution disc to a gearbox is inserted into the bolt hole, the fixing bolt comprises a stud and a bolt head, the cross section of the bolt head is circular, a groove for accommodating the bolt head is arranged at a position corresponding to the bolt hole of the oil distribution disc, an annular slot is formed in the inner side wall of the groove, a wrench inserting wrench slot is formed in one side, away from the stud, of the bolt head, two through sliding grooves are formed in the inner side wall of the wrench slot, one end of each sliding groove faces the wrench slot, the other end of each sliding groove faces the slot, an inserting piece is connected in each sliding groove in a sliding mode and is symmetrical to the center of the cross section of the bolt head, a wire collecting slot parallel to the axis of the stud is formed in the bottom of the wrench slot, and a spring and a pull wire are arranged, the spring both ends are connected on the inserted sheet of its both sides, act as go-between both ends and connect on the inserted sheet of its both sides, act as go-between and receive line trench position and correspond.
6. The integral oil distributor as set forth in claim 5, wherein the cross-section of the wrench groove is a regular hexagon.
7. The integral oil distributor according to claim 5, wherein the bolt head is matched with the groove, an annular anti-theft and anti-loosening groove is formed between the bolt head and the groove, and the groove width of the anti-theft and anti-loosening groove is 80% -90% of the thickness of the insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872272.3A CN110645339B (en) | 2019-09-16 | 2019-09-16 | Integral oil distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910872272.3A CN110645339B (en) | 2019-09-16 | 2019-09-16 | Integral oil distributor |
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| Publication Number | Publication Date |
|---|---|
| CN110645339A true CN110645339A (en) | 2020-01-03 |
| CN110645339B CN110645339B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910872272.3A Active CN110645339B (en) | 2019-09-16 | 2019-09-16 | Integral oil distributor |
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| CN (1) | CN110645339B (en) |
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|---|---|---|---|---|
| GB2240831A (en) * | 1990-02-13 | 1991-08-14 | Paul Augustus Hodgetts | Frame joints |
| JPH05164121A (en) * | 1991-12-13 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | Screw for aircraft |
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| CN104154098A (en) * | 2014-08-11 | 2014-11-19 | 青岛大学 | Anti-loosening device for screw of battery electrode |
| CN104315106A (en) * | 2014-08-19 | 2015-01-28 | 中国北方车辆研究所 | Guide wheel shaft assembly of hydraulic torque converter |
| CN205745183U (en) * | 2016-05-13 | 2016-11-30 | 奇瑞控股有限公司 | A kind of chain sprocket structure of automatic gearbox of vehicles |
| CN106438645A (en) * | 2016-08-23 | 2017-02-22 | 无锡市东赫金属制品有限公司 | Tightly fastened bolt-nut assembly |
| CN206617529U (en) * | 2017-03-28 | 2017-11-07 | 陕西法士特齿轮有限责任公司 | A kind of Hydrodynamic transmission fluid power distribution structure |
| CN109552646A (en) * | 2017-09-25 | 2019-04-02 | 中国航空工业集团公司西安飞机设计研究所 | A kind of built-in type engine side attaching head assembly |
| CN109681619A (en) * | 2017-10-19 | 2019-04-26 | 上海汽车集团股份有限公司 | A kind of gearbox matches oil system and oil distribution casing assembly |
| CN208997316U (en) * | 2018-09-11 | 2019-06-18 | 科力远混合动力技术有限公司 | Hybrid power gearbox rear end cap assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5164121B2 (en) * | 2009-03-19 | 2013-03-13 | 学校法人関西学院 | Single crystal silicon carbide growth method |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2240831A (en) * | 1990-02-13 | 1991-08-14 | Paul Augustus Hodgetts | Frame joints |
| JPH05164121A (en) * | 1991-12-13 | 1993-06-29 | Mitsubishi Heavy Ind Ltd | Screw for aircraft |
| KR20020055799A (en) * | 2000-12-29 | 2002-07-10 | 한형환 | One-directional Locking Screw |
| CN203308859U (en) * | 2013-05-17 | 2013-11-27 | 浙江三林五金制品有限公司 | Anti-theft bolt and special wrench |
| CN104154098A (en) * | 2014-08-11 | 2014-11-19 | 青岛大学 | Anti-loosening device for screw of battery electrode |
| CN104315106A (en) * | 2014-08-19 | 2015-01-28 | 中国北方车辆研究所 | Guide wheel shaft assembly of hydraulic torque converter |
| CN205745183U (en) * | 2016-05-13 | 2016-11-30 | 奇瑞控股有限公司 | A kind of chain sprocket structure of automatic gearbox of vehicles |
| CN106438645A (en) * | 2016-08-23 | 2017-02-22 | 无锡市东赫金属制品有限公司 | Tightly fastened bolt-nut assembly |
| CN206617529U (en) * | 2017-03-28 | 2017-11-07 | 陕西法士特齿轮有限责任公司 | A kind of Hydrodynamic transmission fluid power distribution structure |
| CN109552646A (en) * | 2017-09-25 | 2019-04-02 | 中国航空工业集团公司西安飞机设计研究所 | A kind of built-in type engine side attaching head assembly |
| CN109681619A (en) * | 2017-10-19 | 2019-04-26 | 上海汽车集团股份有限公司 | A kind of gearbox matches oil system and oil distribution casing assembly |
| CN208997316U (en) * | 2018-09-11 | 2019-06-18 | 科力远混合动力技术有限公司 | Hybrid power gearbox rear end cap assembly |
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| CN110645339B (en) | 2021-07-16 |
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Denomination of invention: An integral oil distributor Effective date of registration: 20230414 Granted publication date: 20210716 Pledgee: China Merchants Bank Co.,Ltd. Hangzhou Branch Pledgor: HANGZHOU JIETU TRANSMISSION PARTS CO.,LTD. Registration number: Y2023330000775 |
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Denomination of invention: An integral oil distributor Effective date of registration: 20231230 Granted publication date: 20210716 Pledgee: China Merchants Bank Co.,Ltd. Hangzhou Branch Pledgor: HANGZHOU JIETU TRANSMISSION PARTS CO.,LTD. Registration number: Y2023980074726 |