CN107035202A - Gear drive frcition damper and assembling work progress - Google Patents
Gear drive frcition damper and assembling work progress Download PDFInfo
- Publication number
- CN107035202A CN107035202A CN201710403352.5A CN201710403352A CN107035202A CN 107035202 A CN107035202 A CN 107035202A CN 201710403352 A CN201710403352 A CN 201710403352A CN 107035202 A CN107035202 A CN 107035202A
- Authority
- CN
- China
- Prior art keywords
- angle steel
- gear
- hole
- rack
- friction plate
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention belongs to technical field of civil engineering, it is related to a kind of gear drive frcition damper and assembling work progress, including lower connecting plate, lower friction plate, mainboard, upper friction plate, rear angle steel, preceding angle steel, lower rack, triple gear, double link, upper rack, U-shaped connector, high-strength bolt, caging bolt, rotary gear shaft and alignment pin.Mainboard is located at lower connecting plate and separated between the preceding angle steel of arrangement, rear angle steel, lower friction plate is pasted on the upper surface of lower connecting plate, upper friction plate is pasted on the lower surface of rear angle steel and preceding angle steel, triple gear, upper rack, lower rack and double link are located in the middle of rear angle steel and preceding angle steel, lower rack is pasted in mainboard groove, upper rack is pasted in double link groove, and U-shaped connector is welded in doubly-linked boom end.Displacement equations type frcition damper is exaggerated the sliding friction displacement of damper using gear drive theory, and energy dissipation capacity is strong.
Description
Technical field
The invention belongs to technical field of civil engineering, it is related to a kind of energy-consuming shock absorber, provides and put especially by gear
The frcition damper of big displacement.
Background technology
Energy-dissipating and shock-absorbing technology is the damper in parallel in the lateral resistant member of structure, and most earthquake is consumed by damper
Energy, is a kind of active and effective antidetonation strategy so as to ensure the safety of agent structure.Displacement during existing damper work is led to
It is often equal with the relative displacement of tie point, therefore damper is preferably arranged on the larger position of structure relative deformation, such as structure is relative to be become
Shape is small, and damper can not effectively play its power consumption function because displacement is small.Therefore, scholars have developed new technology so that damper
Displacement be more than tie point relative displacement, such as:Band displacement equations dress is disclosed in Publication No. CN 104314192A patent
The damper put, i.e., increase the displacement of damper, but lever transmission is less efficient using lever principle, and only damper size is very
Larger displacement could be obtained when big, the inconvenience of installation is thus caused, also have impact on the use function of building.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of gear drive frcition damper, and the damper is in earthquake
It can realize that damper work shift is more than the relative displacement of tie point using gear drive principle, with good energy dissipation capacity,
And it is simple structure, easy for installation.
The technical solution adopted for the present invention to solve the technical problems is:
Gear drive frcition damper, including lower connecting plate, lower friction plate, mainboard, upper friction plate, rear angle steel, preceding angle steel,
Lower rack, triple gear, double link, upper rack, U-shaped connector, high-strength bolt, caging bolt, rotary gear shaft and alignment pin;It is main
Plate is located at lower connecting plate and separated between the preceding angle steel of arrangement, rear angle steel, and lower friction plate is pasted on lower connecting plate with epoxy resin
Upper surface, upper friction plate is pasted on the lower surface of rear angle steel and preceding angle steel with epoxy resin, and high-strength bolt will be stained with lower friction
The lower connecting plate of piece, mainboard and the rear angle steel and preceding Bolted angle connection for being stained with upper friction plate;Triple gear, upper rack, lower rack and
Double link is located in the middle of rear angle steel and preceding angle steel, and rotary gear shaft passes through preceding angle steel, triple gear and rear angle steel, alignment pin and spacing
Bolt passes through preceding angle steel, double link and rear angle steel;In the recessing of mainboard upper surface, double link lower surface recessing, upper friction plate
Between open rack bore, lower rack is pasted in mainboard groove with epoxy resin, and upper rack is pasted on double link groove with epoxy resin
Interior, U-shaped connector is welded in doubly-linked boom end.
Triple gear is made up of first gear and second gear, and first gear radius is more than second gear radius, the first tooth
Wheel and lower rack are meshed, and second gear and upper rack are meshed.
Gear drive frcition damper includes two functional units of friction element and gear transmission unit.Friction element is under
Connecting plate, lower friction plate, mainboard, upper friction plate, rear angle steel, preceding angle steel and high-strength bolt composition;Gear transmission unit is by lower tooth
Bar, triple gear, double link, upper rack, U-shaped connector, rotary gear shaft and caging bolt composition.Gear drive frcition damper
Operation principle is as follows:
1. high-strength bolt will be stained with the lower connecting plate, mainboard and the rear angle steel and preceding angle steel that are stained with upper friction plate of lower friction plate
Connection, the frictional force of friction element is can adjust by applying normal pressure.
2. under load action, the double link for being stained with upper rack is moved, and upper rack drives second gear to rotate, so that
Driving triple gear rotates;When the engagement force of first gear and lower rack is more than the maximum static friction force of friction element,
Phase can be occurred with being stained with the lower connecting plate of lower friction plate, the preceding angle steel for being stained with upper friction plate and rear angle steel by being stained with the mainboard of lower rack
To sliding so as to produce frictional force dissipation energy.Because first gear and second gear have identical angular speed, r is made1And r2Point
Biao Shi not first gear radius and the second tooth radius, the slide displacement and double link of friction element according to knowable to gear drive principle
The ratio between displacement is r1/r2, realize the function of displacement amplification of gear drive frcition damper.
The beneficial effects of the invention are as follows:1. gear drive frcition damper is exaggerated damper using gear drive principle
Sliding friction displacement, has the advantages that energy dissipation capacity is strong and stable work in work;2. gear drive frcition damper is except friction
Remaining material of piece is all steel, easy to make, with low cost;3. gear drive frcition damper and engineering structure are connected with
With pin connection, easy construction, it is easy to maintenance and replacing.
Brief description of the drawings
Fig. 1 is gear drive frcition damper schematic diagram.
Fig. 2 is friction element schematic diagram in Fig. 1.
Fig. 3 is Fig. 1 middle gear gear unit schematic diagrames.
Fig. 4 is lower connection sheet schematic diagram in Fig. 1.
Fig. 5 is lower friction plate schematic diagram in Fig. 1.
Fig. 6 is mainboard schematic diagram in Fig. 1.
Fig. 7 is mainboard schematic diagram Nian Jie with lower rack in Fig. 1.
Fig. 8 is upper friction plate schematic diagram in Fig. 1.
Fig. 9 is rear angle steel schematic diagram in Fig. 1.
Figure 10 is preceding angle steel schematic diagram in Fig. 1.
Figure 11 is triple gear schematic diagram in Fig. 1.
Figure 12 is the double link schematic diagram that U-shaped connector is welded with Fig. 3.
Figure 13 is double link schematic diagram Nian Jie with upper rack in Fig. 1.
Figure 14 is Fig. 1 middle gear rotating shaft schematic diagrames.
Figure 15 is alignment pin schematic diagram in Fig. 1
In figure, 1- lower connecting plates, friction plate under 2-, 3- mainboards, 4- upper friction plates, angle steel after 5-, angle steel, 7- lower tooths before 6-
Bar, 8- triple gears, 9- double links, 10- upper racks, 11-U shape connectors, 12- high-strength bolts, 13- caging bolts, 14- gears
Friction plate bolt hole under rotating shaft, 15- alignment pins, 401- lower connecting plate bolts hole, 402- lower connecting plate fixed bolt holes, 501-,
Angle steel spacing hole after 601- mainboard long slot bores, 602- mainboard grooves, 801- upper friction plate bolts hole, 802- rack bores, 901-,
Before angle steel spacing hole before angle steel positioning hole after angle steel bolt hole after 902- relief angle rotating steel shafts hole, 903-, 904-, 1001-, 1002-
Angle steel positioning hole before angle steel bolt hole, 1004- before angle steel shaft hole, 1003-, 1101- first gears, 1102- second gears,
1103- triple gear central axis holes, 1201- double link spacing holes, 1202- double link grooves, 1203- pins hole, 1204- double links
Positioning hole.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
According to Fig. 1 and Fig. 3, gear drive frcition damper, including lower connecting plate 1, lower friction plate 2, mainboard 3, on
Friction plate 4, rear angle steel 5, preceding angle steel 6, lower rack 7, triple gear 8, double link 9, upper rack 10, U-shaped connector 11, high-strength spiral shell
Bolt 12, caging bolt 13, rotary gear shaft 14 and alignment pin 15.
According to Fig. 6, Fig. 7, Figure 12 and Figure 13, the upper surface recessing of mainboard 3, the lower surface recessing of double link 9 above rubs
Rack bore 802 is opened in the middle of wiping board 4, lower rack 7 is pasted in mainboard groove 602 with epoxy resin, and upper rack 10 uses epoxy resin
It is pasted in double link groove 1202.
According to Fig. 2, Fig. 4, Fig. 5, Fig. 6, Fig. 8, Fig. 9 and Figure 10, two high-strength bolts 12 pass through rear angle steel bolt hole
903rd, upper friction plate bolt hole 801, mainboard long slot bore 601, lower friction plate bolt hole 501 and lower connecting plate bolt hole 401, in addition
Two high-strength bolts 12 pass through preceding angle steel bolt hole 1003, upper friction plate bolt hole 801, mainboard long slot bore 601, lower friction plate spiral shell
Keyhole 501 and lower connecting plate bolt hole 401.
According to Fig. 3, Figure 11 and Figure 12, triple gear 8 is made up of first gear 1101 and second gear 1102, and first
The radius of gear 1101 is more than second gear 1102, and first gear 1101 is meshed with lower rack 7, second gear 1102 and upper rack
10 are meshed, and rotary gear shaft 14 passes through anterior angle rotating steel shaft hole 1002, triple gear central axis hole 1103 and relief angle rotating steel shaft hole 902.
According to Fig. 1, Figure 14 and Figure 15, double link 9 is located in the middle of rear angle steel 5 and preceding angle steel 6.Before alignment pin 15 is passed through
Angle steel positioning hole 1004, double link positioning hole 1204 and rear angle steel positioning hole 904, two caging bolts 14 are spacing through preceding angle steel
Hole 1001, double link spacing hole 1201 and rear angle steel spacing hole 901.
According to Fig. 2, Fig. 5, Fig. 8, Fig. 9 and Figure 10, lower friction plate 2 is pasted onto the upper of lower connecting plate 1 with epoxy resin
Surface, upper friction plate 4 is pasted onto the lower surface of rear angle steel 5 and preceding angle steel 6 with epoxy resin, rear angle steel 5 and preceding angle steel 6 construction and
Size is identical.
The assembling work progress of the gear drive frcition damper is as follows:
1. lower friction plate 2 is pasted onto to the upper surface of lower connecting plate 1 using epoxy resin, after upper friction plate 4 is pasted onto
The lower surface of angle steel 5 and preceding angle steel 6, lower rack 7 is pasted in mainboard groove 602, and it is recessed that upper rack 10 is pasted on into double link
In groove 1202, U-shaped connector 12 is welded on the end of double link 10;
2. two high-strength bolts 12 through rear angle steel bolt hole 903, upper friction plate bolt hole 801, mainboard long slot bore 601,
Lower friction plate bolt hole 501 and lower connecting plate bolt hole 401, another two high-strength bolt 12 through preceding angle steel bolt hole 1003, on
Friction plate bolt hole 801, mainboard long slot bore 601, lower friction plate bolt hole 501 and lower connecting plate bolt hole 401, the hole of each component
Position central coaxial, the pretension of high-strength bolt 12 applies normal pressure;
3. triple gear 8 is located in the middle of rear angle steel 5 and preceding angle steel 6, and rotary gear shaft 14 passes through anterior angle rotating steel shaft hole 1002, three
Join gear central axis hole 1103 and relief angle rotating steel shaft hole 902, and fixed by nut, first gear 1101 is engaged with lower rack 7;
4. double link 9 is located in the middle of rear angle steel 5 and preceding angle steel 6, and alignment pin 15 passes through preceding angle steel positioning hole 1004, double link
Positioning hole 1204 and rear angle steel positioning hole 904, two caging bolts 13 pass through preceding angle steel spacing hole 1001, double link spacing hole
1201 and rear angle steel spacing hole 901, second gear 1102 is engaged with upper rack 10;
5. gear drive frcition damper lower connecting plate 1 passes through lower connecting plate fixed bolt hole 402 and engineering structure bolt
Connection, U-shaped connector 12 is connected by pin hole 1203 with engineering structure pin;
6. alignment pin 15 is extracted, into can working condition.
Claims (5)
1. gear drive frcition damper, it is characterised in that:Including lower connecting plate (1), lower friction plate (2), mainboard (3), on rub
Pad (4), rear angle steel (5), preceding angle steel (6), lower rack (7), triple gear (8), double link (9), upper rack (10), U-shaped connect
Fitting (11), high-strength bolt (12), caging bolt (13), rotary gear shaft (14) and alignment pin (15);Mainboard (3) is located at lower connection
Between plate (1) and the preceding angle steel (6) of separation arrangement, rear angle steel (5), lower friction plate (2) is pasted on lower connecting plate with epoxy resin
(1) upper surface, upper friction plate (4) is pasted on the lower surface of rear angle steel (5) and preceding angle steel (6), high-strength bolt with epoxy resin
(12) lower connecting plate (1), mainboard (3) and the rear angle steel (5) and anterior angle that are stained with upper friction plate (4) of lower friction plate (2) will be stained with
Steel (6) is connected;Triple gear (8), upper rack (10), lower rack (7) and double link (9) are located at rear angle steel (5) and preceding angle steel (6)
Centre, rotary gear shaft (14) passes through preceding angle steel (6), triple gear (8) and rear angle steel (5), alignment pin (15) and caging bolt
(13) preceding angle steel (6), double link (9) and rear angle steel (5) are each passed through.
2. gear drive frcition damper according to claim 1, it is characterised in that:Triple gear (8) is by first gear
(1101) constituted with second gear (1102), first gear (1101) radius is more than second gear (1102), first gear
(1101) it is meshed with lower rack (7), second gear (1102) and upper rack (10) are meshed.
3. gear drive frcition damper according to claim 1, it is characterised in that:Mainboard (3) upper surface recessing, doubly-linked
Rack bore (802) is opened in the middle of bar (9) lower surface recessing, upper friction plate (4), lower rack (7) is pasted on mainboard with epoxy resin
In groove (602), upper rack (10) is pasted on epoxy resin in double link groove (1202), and U-shaped connector (12) is welded in
Double link (10) end.
4. gear drive frcition damper according to claim 1, it is characterised in that:Double link (9) be located at preceding angle steel (6) and
Afterwards on the inside of angle steel (5), alignment pin (15) is positioned through preceding angle steel positioning hole (1004), double link positioning hole (1204) and rear angle steel
Hole (904), caging bolt (13) passes through preceding angle steel spacing hole (1001), double link spacing hole (1201) and rear angle steel spacing hole
(901)。
5. the assembling work progress of the gear drive frcition damper is as follows, it is characterised in that:
Lower friction plate (2) is 1. pasted onto to the upper surface of lower connecting plate (1) using epoxy resin, upper friction plate (4) is pasted onto
The lower surface of angle steel (5) and preceding angle steel (6), lower rack (7) is pasted in mainboard groove (602) afterwards, and upper rack (10) is viscous
It is affixed in double link groove (1202), U-shaped connector (12) is welded on the end of double link (10);
2. (12 pass through rear angle steel bolt hole (903), upper friction plate bolt hole (801), mainboard long slot bore to two high-strength bolts
(601), lower friction plate bolt hole (501) and lower connecting plate bolt hole (401), another two high-strength bolt (12) pass through preceding angle steel spiral shell
Keyhole (1003), upper friction plate bolt hole (801), mainboard long slot bore (601), lower friction plate bolt hole (501) and lower connecting plate
Bolt hole (401), the hole position central coaxial of each component, high-strength bolt (12) pretension applies normal pressure;
3. triple gear (8) is located in the middle of rear angle steel (5) and preceding angle steel (6), and rotary gear shaft (14) passes through anterior angle rotating steel shaft hole
(1002), triple gear central axis hole (1103) and relief angle rotating steel shaft hole (902), and fixed by nut, first gear (1101) with
Lower rack (7) engagement;
4. double link (9) is located in the middle of rear angle steel (5) and preceding angle steel (6), alignment pin (15) pass through preceding angle steel positioning hole (1004),
Double link positioning hole (1204) and rear angle steel positioning hole (904), two caging bolts (13) through preceding angle steel spacing hole (1001),
Double link spacing hole (1201) and rear angle steel spacing hole (901), second gear (1102) are engaged with upper rack (10);
5. gear drive frcition damper lower connecting plate (1) passes through lower connecting plate fixed bolt hole (402) and engineering structure bolt
Connection, U-shaped connector (12) is connected by pin hole (1203) with engineering structure pin;
6. alignment pin (15) is extracted, into can working condition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710403352.5A CN107035202B (en) | 2017-05-27 | 2017-05-27 | Gear transmission friction damper and assembly construction process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710403352.5A CN107035202B (en) | 2017-05-27 | 2017-05-27 | Gear transmission friction damper and assembly construction process |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107035202A true CN107035202A (en) | 2017-08-11 |
CN107035202B CN107035202B (en) | 2023-09-22 |
Family
ID=59539760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710403352.5A Active CN107035202B (en) | 2017-05-27 | 2017-05-27 | Gear transmission friction damper and assembly construction process |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107035202B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108049689A (en) * | 2018-01-19 | 2018-05-18 | 河北工业大学 | Self-resetting gear shears damper and assembling constructing method |
CN108086515A (en) * | 2018-01-19 | 2018-05-29 | 河北工业大学 | The efficient shearing damp device of gear and assembling constructing method |
CN108166642A (en) * | 2018-01-19 | 2018-06-15 | 河北工业大学 | Gear mild steel damper and assembling constructing method |
CN109680826A (en) * | 2019-01-21 | 2019-04-26 | 河北工业大学 | Speed scale-up version viscous damping wall and assembling constructing method |
CN109736467A (en) * | 2019-02-28 | 2019-05-10 | 长安大学 | A kind of bidirectional damper hinge device and damping method |
CN115538835A (en) * | 2022-11-03 | 2022-12-30 | 北京工业大学 | Self-resetting rotary amplification friction energy dissipation damper |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010054785A1 (en) * | 2000-06-16 | 2001-12-27 | Stefano Berton | Displacement amplification method and apparatus for passive energy dissipation in seismic applications |
CN1499105A (en) * | 2002-11-12 | 2004-05-26 | 光洋密封技术株式会社 | Friction damper and gearing driving gear using same |
US20090264063A1 (en) * | 2006-05-30 | 2009-10-22 | Barton Tinsley | Gear Drive Damper |
CN104499597A (en) * | 2014-12-31 | 2015-04-08 | 长安大学 | Viscous damper input displacement rate increasing device |
CN204385942U (en) * | 2014-12-31 | 2015-06-10 | 长安大学 | A kind of circumscribed damper displacement amplifying device |
CN204592193U (en) * | 2015-02-03 | 2015-08-26 | 广元天英精密传动系统有限公司 | Miniature gears damper |
-
2017
- 2017-05-27 CN CN201710403352.5A patent/CN107035202B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010054785A1 (en) * | 2000-06-16 | 2001-12-27 | Stefano Berton | Displacement amplification method and apparatus for passive energy dissipation in seismic applications |
CN1499105A (en) * | 2002-11-12 | 2004-05-26 | 光洋密封技术株式会社 | Friction damper and gearing driving gear using same |
US20090264063A1 (en) * | 2006-05-30 | 2009-10-22 | Barton Tinsley | Gear Drive Damper |
CN104499597A (en) * | 2014-12-31 | 2015-04-08 | 长安大学 | Viscous damper input displacement rate increasing device |
CN204385942U (en) * | 2014-12-31 | 2015-06-10 | 长安大学 | A kind of circumscribed damper displacement amplifying device |
CN204592193U (en) * | 2015-02-03 | 2015-08-26 | 广元天英精密传动系统有限公司 | Miniature gears damper |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108049689A (en) * | 2018-01-19 | 2018-05-18 | 河北工业大学 | Self-resetting gear shears damper and assembling constructing method |
CN108086515A (en) * | 2018-01-19 | 2018-05-29 | 河北工业大学 | The efficient shearing damp device of gear and assembling constructing method |
CN108166642A (en) * | 2018-01-19 | 2018-06-15 | 河北工业大学 | Gear mild steel damper and assembling constructing method |
CN109680826A (en) * | 2019-01-21 | 2019-04-26 | 河北工业大学 | Speed scale-up version viscous damping wall and assembling constructing method |
CN109736467A (en) * | 2019-02-28 | 2019-05-10 | 长安大学 | A kind of bidirectional damper hinge device and damping method |
CN115538835A (en) * | 2022-11-03 | 2022-12-30 | 北京工业大学 | Self-resetting rotary amplification friction energy dissipation damper |
CN115538835B (en) * | 2022-11-03 | 2024-01-05 | 北京工业大学 | Self-resetting rotary amplifying friction energy dissipation damper |
Also Published As
Publication number | Publication date |
---|---|
CN107035202B (en) | 2023-09-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106988594A (en) | Displacement equations type frcition damper and assembling work progress | |
CN107035202A (en) | Gear drive frcition damper and assembling work progress | |
CN206829743U (en) | Displacement equations type frcition damper | |
CN206859793U (en) | Gear drive frcition damper | |
CN102735444B (en) | Closed force flow type gear box abrasion oil liquid monitoring test stand | |
CN202646479U (en) | Yaw brake of wind turbine generator system | |
CN202986924U (en) | Lift structure of self-discharging freight car | |
CN203005456U (en) | Coal mine underground transportation card track vehicle set connecting device | |
CN108049689A (en) | Self-resetting gear shears damper and assembling constructing method | |
CN108166642A (en) | Gear mild steel damper and assembling constructing method | |
CN110436123A (en) | A kind of mine scraper conveyer side double-strand scraper plate | |
CN207061650U (en) | A kind of hydraulic pressure grabs folder | |
CN104163199A (en) | Hydraulic steering four-wheel drive axle of plant protection machine | |
CN202624629U (en) | Rocker type landing gear | |
CN204140291U (en) | The impeller of wind power generating set and wind power generating set | |
CN215401102U (en) | Mechanical self-control hydraulic deviation-preventing device | |
CN201615108U (en) | Oil cylinder straight-pushing type ultra-short sliding rack body | |
CN202579893U (en) | Swinging limited slip differential | |
CN204110140U (en) | Equipment for plant protection fluid-link steering 4 wheel driven vehicle bridge | |
CN108086514A (en) | Self-resetting gear drive damper and assembling constructing method | |
CN203556443U (en) | Cushion block heightening mechanism for PLM500 type crusher | |
CN208262714U (en) | A kind of fastener for bolt | |
CN201787012U (en) | Central friction transmission device | |
CN102518772A (en) | Swing type limited slip differential | |
CN206562146U (en) | One kind slips coal dustpan belt deviation correction structure |
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 |