CN114962473B - High elasticity crowned tooth shaft coupling of big inclination - Google Patents
High elasticity crowned tooth shaft coupling of big inclination Download PDFInfo
- Publication number
- CN114962473B CN114962473B CN202210647134.7A CN202210647134A CN114962473B CN 114962473 B CN114962473 B CN 114962473B CN 202210647134 A CN202210647134 A CN 202210647134A CN 114962473 B CN114962473 B CN 114962473B
- Authority
- CN
- China
- Prior art keywords
- gear sleeve
- sealing
- rings
- outer gear
- crowned
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/18—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth
- F16D3/185—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth radial teeth connecting concentric inner and outer coupling parts
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
- F16D3/66—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being metallic, e.g. in the form of coils
-
- 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
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a high-elasticity crowned tooth coupler with a large inclination angle. The technical problems that the sealing of a large inclination angle is not tight, the lubricant is easy to leak and the transmission is unstable in the existing drum-shaped tooth type coupling are mainly solved. The technical scheme adopted by the invention is as follows: a high-elasticity crowned tooth coupler with a large inclination angle comprises two end covers, a large spring, an outer hexagonal bolt, a plurality of small springs, two inner gear rings, two sealing gaskets, a plurality of inner hexagonal bolts, an angle compensation ring, a sealing ring, two buckle plates and an outer tooth sleeve; the outer surfaces of the left side and the right side of the outer gear sleeve are symmetrically provided with crowned teeth, the two buckle plates are respectively arranged on the two end faces of the outer gear sleeve, the sealing rings are arranged in sealing grooves arranged at the two ends of the outer gear sleeve, the two inner gear rings are respectively arranged at the two sides of the outer gear sleeve and enable the inner teeth of the inner gear rings to be meshed with the crowned teeth of the outer gear sleeve, the angle compensation ring is arranged in a U-shaped groove of the outer gear sleeve, and the two end covers are respectively connected with the closed ends of the two inner gear rings through outer hexagon bolts.
Description
Technical Field
The invention belongs to the technical field of tooth couplings, and particularly relates to a high-elasticity drum-shaped tooth coupling with a large inclination angle.
Background
The drum-shaped tooth-shaped coupler belongs to a flexible coupler without elastic elements, can realize axial, radial and angular equiaxial deviation compensation, has the advantages of compact structure, small turning radius, large bearing capacity, high transmission efficiency and the like, and is widely applied to the fields of metallurgy, rail transit, marine ships, lifting transportation, aerospace and the like. However, the existing crowned tooth coupler has the problems of loose seal, easy leakage of lubricant and the like under the working condition of large inclination angle, and the service performance and the service life of the existing crowned tooth coupler are seriously reduced; the feedback of the crowned teeth coupling without the elastic element to the vibration can be transmitted or amplified and then transmitted, so that the stability of the transmission system is seriously affected, and the gear teeth are worn and failed and the transmission system is caused to be failed.
Disclosure of Invention
The invention aims to solve the technical problems of low sealing tightness at a large inclination angle, easy leakage of lubricant and unstable transmission of the traditional crowned tooth type coupling and provides a high-elasticity crowned tooth type coupling with a large inclination angle.
In order to solve the technical problems, the invention adopts the following technical scheme:
a high-elasticity crowned tooth coupler with a large inclination angle comprises two end covers, a large spring, an outer hexagonal bolt, a plurality of small springs, two inner gear rings, two sealing gaskets, a plurality of inner hexagonal bolts, an angle compensation ring, a sealing ring, two buckle plates and an outer tooth sleeve; the outer tooth cover is characterized in that crowned teeth are symmetrically arranged on the outer surfaces of the left side and the right side of the outer tooth cover, U-shaped grooves are formed in the middle of the outer surface of the outer tooth cover, sealing grooves are formed in the two end faces of the outer tooth cover, two buckle plates are respectively arranged on the two end faces of the outer tooth cover and enable bosses arranged on the edges of the inner surfaces of the buckle plates to be located in the sealing grooves, sealing rings are arranged in the sealing grooves formed in the two ends of the outer tooth cover and enable inner teeth of the inner tooth rings to be meshed with the crowned teeth of the outer tooth cover, angle compensation rings are arranged in the U-shaped grooves of the outer tooth cover, two ends of the angle compensation rings are respectively connected with the opening ends of the two inner tooth rings through a plurality of inner hexagon bolts, sealing gaskets are arranged between the angle compensation rings and the opening ends of the inner tooth rings so as to be convenient to seal, a large spring and a plurality of small springs are arranged between the inner surfaces of the inner tooth rings and the outer surfaces of the buckle plates, two ends of the large springs are respectively arranged on large spring fixing seats arranged in the centers of the inner surfaces of the closed ends of the inner tooth rings, and the large springs arranged on the centers of the outer surfaces of the buckle plates, two ends of the small springs are respectively arranged on the bosses of the small spring fixing seats, the inner ends of the inner tooth rings are respectively, and the small springs arranged on the outer surfaces of the inner tooth ring sealing seats, and the small springs arranged on the outer ends of the faces of the inner ends of the inner ring sealing rings, and the sealing rings are respectively.
Further, the ring gear is a ring body with one end open and the other end closed, internal teeth are arranged on the inner surface of the ring body, a large spring fixing seat is arranged in the center of the inner surface of the closed end of the ring body, a plurality of small spring fixing seats are uniformly arranged on the periphery of the large spring fixing seat, and an oil filling hole is formed in the position, close to the inner surface of the closed end, of the ring body.
Further, the angle compensation ring is an annular body made of metal materials, U-shaped grooves are formed in the outer surface of the annular body, through holes are formed in the periphery of the end face of the angle compensation ring, and the number of the U-shaped grooves is more than or equal to 2.
Further, the center of the outer surface of the buckle plate is provided with a large spring boss, the periphery of the large spring boss is uniformly provided with a plurality of small spring bosses, the small spring bosses correspond to the small spring fixing seats, and the edges of the inner surface of the buckle plate are provided with bosses.
The beneficial effects of the invention are as follows:
(1) The invention ensures that the drum-shaped tooth-shaped coupler still maintains good tightness under a large inclination angle;
(2) The elastic unit is additionally arranged and acts between the inner gear ring and the outer gear sleeve, so that the vibration damping performance of the system can be improved, and the stability of the transmission system can be improved;
(3) The sealing compensation ring is made of metal materials, the design of the U-shaped groove can ensure enough inclination angle compensation, and meanwhile, compared with the traditional nonmetallic (rubber, plastic and the like) materials, the metal has better service performance in the environment with high rotating speed, high temperature, high pressure and high humidity;
(4) The connection mode of the end cover and the transmission shaft can be adjusted according to the actual structure, and keyless connection, key connection and the like can be realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of the ring gear of the present invention;
FIG. 3 is a schematic view of the structure of the outer sleeve of the present invention;
FIG. 4 is a schematic view of the angle compensation ring of the present invention;
fig. 5 is a power transmission path diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
As shown in fig. 1 to 4, a high-elasticity crowned tooth coupling with a large inclination angle in the present embodiment includes two end caps 1, two large springs 2, a plurality of outer hexagonal bolts 3, a plurality of small springs 4, two inner gear rings 5, two sealing gaskets 6, a plurality of inner hexagonal bolts 7, an angle compensation ring 8, two sealing rings 9, two pinch plates 10 and an outer gear sleeve 11; the outer surfaces of the left side and the right side of the outer gear sleeve 11 are symmetrically provided with crowned teeth 11b, the middle part of the outer surface of the outer gear sleeve 11 is provided with U-shaped grooves 11c, the two end surfaces of the outer gear sleeve 11 are provided with sealing grooves 11a, the two buckle plates 10 are respectively arranged on the two end surfaces of the outer gear sleeve 11, the bosses 10c arranged at the edges of the inner surfaces of the buckle plates 10 are positioned in the sealing grooves 11a, the sealing rings 9 are arranged in the sealing grooves 11a arranged at the two ends of the outer gear sleeve 11, the inner cavities of the outer gear sleeve 11 form a sealing space 13, the two inner gear rings 5 are respectively arranged at the two sides of the outer gear sleeve 11, the inner teeth 5c of the inner gear ring 5 are meshed with the crowned teeth 11b of the outer gear sleeve 11, the angle compensation ring 8 is arranged in the U-shaped grooves of the outer gear sleeve 11, and both ends are connected with the open ends of two annular gears 5 respectively through a plurality of hexagon socket head cap bolts 7, sealing gasket 6 is installed between angle compensation ring 8 and the open ends of annular gears 5 in order to seal, big spring 2 and a plurality of little spring 4 set up between annular gear 5 blind end internal surface and buckle 10 surface, and the both ends of big spring 2 are installed respectively on the big spring fixing base that annular gear 5 blind end internal surface center set up and the big spring boss that buckle 10 surface center set up, and the both ends of a plurality of little springs 4 are installed respectively on the little spring fixing base that annular gear 5 blind end internal surface set up and the little spring boss that buckle 10 surface set up, two end covers 1 are connected with two annular gears 5 blind ends respectively through outer hexagon socket head cap bolts 3.
The annular gear 5 is a ring body with one end open and the other end closed, an internal tooth 5c is arranged on the annular inner surface of the ring body, a large spring fixing seat 5a is arranged in the center of the inner surface of the closed end of the ring body, 6 small spring fixing seats 5b are uniformly arranged on the periphery of the large spring fixing seat 5a, and an oil filling hole 12 is formed in the position, close to the inner surface of the closed end, of the ring body. The inner tooth of the inner gear ring 5 is reserved for a distance of 15-30 mm between the tail end of the tooth width and the inner surface of the closed end, the diameter of the reserved space is smaller than or equal to the diameter of the tooth root, the gear shaping processing of the inner tooth is facilitated, and the reserved space ensures that the screw hole does not influence the strength of the gear tooth. The outer surface of the closed end of the annular gear 5 is subjected to friction increasing treatment.
The end cover 1 is composed of an end cover connecting shaft 1a and an end cover flange 1c, the end cover connecting shaft 1a is arranged at the center of the end cover flange 1c, the end cover connecting shaft 1a and the end cover flange 1c are fixedly connected together, and a hollow cavity 1b is arranged in the middle of the end cover connecting shaft 1 a. The end cover connecting shaft 1a can be connected with the transmission system in a keyless connection or key connection mode according to actual requirements. The inner surface of the end cover flange 1c is subjected to friction increasing treatment.
The angle compensation ring 8 is an annular body made of metal materials, a U-shaped groove 8a is formed in the outer surface of the annular body, through holes 8b are formed in the periphery of the end face of the angle compensation ring 8, and the number of the U-shaped grooves 8a is more than or equal to 2; the width l of the U-shaped groove 8a should be calculated according to the designed inner ring diameter D and the offset angle α: l=d·sinα+l, where L is the precompression L of the large and small springs.
The center of the outer surface of the buckle plate 10 is provided with a large spring boss 10a, the periphery of the large spring boss 10a is uniformly provided with 6 small spring bosses 10b, the small spring bosses 10b correspond to the small spring fixing seats 5b, and the edges of the inner surface of the buckle plate 10 are provided with bosses 10c.
The working process of the invention is as follows:
when the invention is installed to a transmission system, firstly, two annular gears 5 are compressed by a tool, the large spring 2 and the small spring 4 are adjusted to be in a compressed state according to the actual working condition, then the end cover connecting shaft 1a is connected with a system transmission shaft, finally, the annular gears 5 are loosened, so that the large spring and the small spring have axial initial elasticity, on one hand, the vibration reduction effect is ensured, and on the other hand, the auxiliary outer gear sleeve is always positioned in a working area. After the installation is completed, lubricating oil is filled into the coupler through the oil filling holes 12 on the inner gear ring 5.
As shown in fig. 5, the power of the transmission system is firstly input from the end cover connecting shaft 1a of the left end cover 1, the power is output from the left end cover 1 to the left ring gear 5 through the outer hexagon bolt 3, the left ring gear 5 transmits the power through the inner teeth 5c and the left crowned teeth 11b of the outer gear sleeve 11, then the power is output from the right crowned teeth 11b of the outer gear sleeve 11 to the right ring gear 5, and finally the power is output from the right end cover 1. Wherein, when power is transmitted to the external gear sleeve 11, unstable elements such as vibration mixed in the power can act on the big spring 2 and the small spring 4 through the pinch plate 10, part of unstable characteristics in the power are filtered out, and the transmission stability is increased.
Claims (4)
1. The high-elasticity crowned tooth coupler with the large inclination angle is characterized by comprising two end covers (1), a large spring (2), an outer hexagonal bolt (3), a plurality of small springs (4), two inner gear rings (5), two sealing gaskets (6), a plurality of inner hexagonal bolts (7), an angle compensation ring (8), a sealing ring (9), two buckle plates (10) and an outer gear sleeve (11); the outer surfaces of the left side and the right side of the outer gear sleeve (11) are symmetrically provided with crowned teeth (11 b), the middle part of the outer surface of the outer gear sleeve (11) is provided with U-shaped grooves, the two end faces of the outer gear sleeve (11) are provided with sealing grooves (11 a), the two pinch plates (10) are respectively arranged on the two end faces of the outer gear sleeve (11) and enable bosses (10 c) arranged at the edges of the inner surfaces of the pinch plates (10) to be positioned in the sealing grooves (11 a), the sealing rings (9) are arranged in the sealing grooves (11 a) arranged at the two ends of the outer gear sleeve (11), the two annular gears (5) are respectively arranged at the two sides of the outer gear sleeve (11) and enable inner teeth (5 c) of the annular gears (5) to be meshed with the crowned teeth (11 b) of the outer gear sleeve (11), the angle compensation rings (8) are arranged in the U-shaped grooves of the outer gear sleeve (11), the two ends of the angle compensation rings (8) are respectively connected with the opening ends of the two annular gears (5) through a plurality of inner hexagon bolts (7), the sealing gaskets (6) are arranged between the angle compensation rings (8) and the opening ends of the two annular gears (5) and the opening ends of the inner ring gears (4) so that the opening ends of the two annular gears (5) can be conveniently arranged between the angle compensation rings (5 and the opening ends of the large springs (4 and the opening ends, and the two ends of the big spring (2) are respectively arranged on big spring fixing seats arranged in the center of the inner surface of the closed end of the annular gear (5) and big spring bosses arranged in the center of the outer surface of the buckle plate (10), the two ends of the plurality of small springs (4) are respectively arranged on the small spring fixing seats arranged in the inner surface of the closed end of the annular gear (5) and the small spring bosses arranged on the outer surface of the buckle plate (10), and the two end covers (1) are respectively connected with the closed ends of the two annular gears (5) through outer hexagon bolts (3).
2. The high-elasticity crowned tooth coupler with the large inclination angle according to claim 1, wherein the inner gear ring (5) is a torus with one end being opened and the other end being closed, inner teeth (5 c) are arranged on the inner surface of the torus, a large spring fixing seat (5 a) is arranged in the center of the inner surface of the closed end of the torus, a plurality of small spring fixing seats (5 b) are uniformly arranged on the periphery of the large spring fixing seat (5 a), and oil filling holes (12) are formed in the position, close to the inner surface of the closed end, of the torus.
3. The high-elasticity crowned tooth coupler with large inclination angle according to claim 1, wherein the angle compensation ring (8) is an annular body made of metal material, a U-shaped groove (8 a) is arranged on the outer surface of the annular body, through holes (8 b) are arranged on the periphery of the end face of the angle compensation ring (8), and the number of the U-shaped grooves (8 a) is more than or equal to 2.
4. The high-elasticity crowned tooth coupler with a large inclination angle according to claim 1, wherein a large spring boss (10 a) is arranged in the center of the outer surface of the buckle plate (10), a plurality of small spring bosses (10 b) are uniformly arranged on the periphery of the large spring boss (10 a), the small spring bosses (10 b) correspond to the small spring fixing seats (5 b), and bosses (10 c) are arranged on the edge of the inner surface of the buckle plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647134.7A CN114962473B (en) | 2022-06-09 | 2022-06-09 | High elasticity crowned tooth shaft coupling of big inclination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210647134.7A CN114962473B (en) | 2022-06-09 | 2022-06-09 | High elasticity crowned tooth shaft coupling of big inclination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114962473A CN114962473A (en) | 2022-08-30 |
| CN114962473B true CN114962473B (en) | 2023-10-20 |
Family
ID=82970751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210647134.7A Active CN114962473B (en) | 2022-06-09 | 2022-06-09 | High elasticity crowned tooth shaft coupling of big inclination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114962473B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2052681C1 (en) * | 1991-05-12 | 1996-01-20 | Арендное предприятие "Завод Кинофотоматериалов" Производственного объединения "Тасма" | Device for connecting two misaligned shafts |
| CN201461754U (en) * | 2009-07-15 | 2010-05-12 | 重庆齿轮箱有限责任公司 | Connecting flange type barreled tooth coupling |
| CA2739221A1 (en) * | 2010-05-06 | 2011-11-06 | The Switch Drive Systems Oy | An electromechanical device |
| CN105422659A (en) * | 2015-12-04 | 2016-03-23 | 镇江市润州联轴器厂 | Tooth coupling |
| DE102016221088A1 (en) * | 2016-10-26 | 2018-04-26 | Bayerische Motoren Werke Aktiengesellschaft | Angle compensation device for a tool |
| CN207349292U (en) * | 2017-09-28 | 2018-05-11 | 泰尔重工股份有限公司 | A kind of curved surface dynamic sealing crown gear coupling |
| EP3379106A1 (en) * | 2017-03-23 | 2018-09-26 | Cordrive Ab | Compound planet gear arrangement and gear wheel arrangement |
| CN212337938U (en) * | 2020-06-05 | 2021-01-12 | 泰尔重工股份有限公司 | Drum-shaped tooth connecting shaft end cover structure |
| CN112739467A (en) * | 2020-12-14 | 2021-04-30 | 泰尔重工股份有限公司 | Bearing seat assembly, finishing mill crowned tooth connecting shaft using bearing seat assembly and balancing device for crowned tooth connecting shaft |
| CN215171659U (en) * | 2021-07-12 | 2021-12-14 | 广州泽尔机电科技有限公司 | Corrugated pipe sealing structure and tooth type coupling using same |
| CN216199945U (en) * | 2021-11-09 | 2022-04-05 | 福建罗源闽光钢铁有限责任公司 | Drum-shaped tooth type coupling |
-
2022
- 2022-06-09 CN CN202210647134.7A patent/CN114962473B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2052681C1 (en) * | 1991-05-12 | 1996-01-20 | Арендное предприятие "Завод Кинофотоматериалов" Производственного объединения "Тасма" | Device for connecting two misaligned shafts |
| CN201461754U (en) * | 2009-07-15 | 2010-05-12 | 重庆齿轮箱有限责任公司 | Connecting flange type barreled tooth coupling |
| CA2739221A1 (en) * | 2010-05-06 | 2011-11-06 | The Switch Drive Systems Oy | An electromechanical device |
| CN105422659A (en) * | 2015-12-04 | 2016-03-23 | 镇江市润州联轴器厂 | Tooth coupling |
| DE102016221088A1 (en) * | 2016-10-26 | 2018-04-26 | Bayerische Motoren Werke Aktiengesellschaft | Angle compensation device for a tool |
| EP3379106A1 (en) * | 2017-03-23 | 2018-09-26 | Cordrive Ab | Compound planet gear arrangement and gear wheel arrangement |
| CN207349292U (en) * | 2017-09-28 | 2018-05-11 | 泰尔重工股份有限公司 | A kind of curved surface dynamic sealing crown gear coupling |
| CN212337938U (en) * | 2020-06-05 | 2021-01-12 | 泰尔重工股份有限公司 | Drum-shaped tooth connecting shaft end cover structure |
| CN112739467A (en) * | 2020-12-14 | 2021-04-30 | 泰尔重工股份有限公司 | Bearing seat assembly, finishing mill crowned tooth connecting shaft using bearing seat assembly and balancing device for crowned tooth connecting shaft |
| CN215171659U (en) * | 2021-07-12 | 2021-12-14 | 广州泽尔机电科技有限公司 | Corrugated pipe sealing structure and tooth type coupling using same |
| CN216199945U (en) * | 2021-11-09 | 2022-04-05 | 福建罗源闽光钢铁有限责任公司 | Drum-shaped tooth type coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114962473A (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114962473B (en) | High elasticity crowned tooth shaft coupling of big inclination | |
| CN102797763A (en) | Novel hydraulic expansion sleeve | |
| CN2483560Y (en) | Pressure-compensation type radical sealing device | |
| CN215171659U (en) | Corrugated pipe sealing structure and tooth type coupling using same | |
| CN213512076U (en) | Shaft end sealing and isolating device of gas pressurizer and gas pressurizer | |
| WO2020133264A1 (en) | Drum gear | |
| CN216111811U (en) | Forced transmission gear coupling | |
| CN219692047U (en) | Transmission output flange sealing structure | |
| WO2020133263A1 (en) | Drum-shaped gear coupling and gear drive system provided with same | |
| CN201221436Y (en) | Bidirectional gear motor integral seal structure | |
| CN220379169U (en) | Self-sealing rotary compensator | |
| CN206234284U (en) | A kind of track traffic crown gear coupling | |
| CN211599495U (en) | Double-lip oil sealing ring for speed reducer | |
| CN213393567U (en) | Anti-leakage gas valve | |
| CN217683766U (en) | Leak protection type flange that gas tightness is good | |
| CN210106544U (en) | Worm wheel end cover applied to worm gear reducer | |
| CN221003737U (en) | Sealing structure of bearing end cover of speed reducer | |
| CN221170674U (en) | Wind power semi-direct-drive gear box and output shaft sealing structure thereof | |
| CN209943368U (en) | Drum gear | |
| CN208951301U (en) | A kind of underwater rotary shaft composite seal device | |
| CN217234162U (en) | Dislocation-preventing internal tooth coupling | |
| CN210769800U (en) | Gear shaft with dustproof cover | |
| CN217815077U (en) | High-temperature high-pressure wear-resistant ball valve | |
| CN220268433U (en) | Cross shaft seal structure of grinding roller support arm of medium-speed coal mill | |
| CN219711770U (en) | Sealing mechanism of hydraulic pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |