CN102515002A - Flexibility-adjustable transmission mechanism of construction lifter - Google Patents

Flexibility-adjustable transmission mechanism of construction lifter Download PDF

Info

Publication number
CN102515002A
CN102515002A CN2011104273127A CN201110427312A CN102515002A CN 102515002 A CN102515002 A CN 102515002A CN 2011104273127 A CN2011104273127 A CN 2011104273127A CN 201110427312 A CN201110427312 A CN 201110427312A CN 102515002 A CN102515002 A CN 102515002A
Authority
CN
China
Prior art keywords
transmission device
adjustable
flexible
drive frame
otic placode
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
Application number
CN2011104273127A
Other languages
Chinese (zh)
Other versions
CN102515002B (en
Inventor
陆忠辉
周苏革
徐炎清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QIDONG DATNG MOTOR CO Ltd
Original Assignee
QIDONG DATNG MOTOR CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by QIDONG DATNG MOTOR CO Ltd filed Critical QIDONG DATNG MOTOR CO Ltd
Priority to CN 201110427312 priority Critical patent/CN102515002B/en
Publication of CN102515002A publication Critical patent/CN102515002A/en
Application granted granted Critical
Publication of CN102515002B publication Critical patent/CN102515002B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a flexibility-adjustable transmission mechanism of a construction lifter, which is characterized by comprising a motor, a speed reducer, a flexibility-adjustable connecting device, an adjustable backgear, a safety hook, a transmission main plate and a driving frame. The flexibility-adjustable connecting device is arranged on the driving frame and comprises a transmission mechanism flexible unit and a transmission mechanism adjustable connecting device, and the transmission mechanism flexible unit and the transmission mechanism adjustable connecting device are fixedly connected into a whole. The flexibility-adjustable transmission mechanism of the construction lifter has the advantages of being simple and practical in structural concept, an adjustable connecting design solves the problem of connecting interchangeability and improves connecting accuracy, a flexible design structure effectively solves the universal problem of starting and stopping impact, the flexibility-adjustable transmission mechanism of the construction lifter is strong in generality, wide in application scope, safe, reliable and low in cost.

Description

The flexible adjustable transmission device of building hoist
Technical field
The present invention relates to the flexible adjustable transmission device of a kind of building hoist.
Background technology
The building hoist transmission device docks with the cage case and generally adopts hard connecting mode at present.The structurally fairly simple convenience of this hard connecting mode, but have many drawbacks: can't regulate the transmission device otic placode when 1. connecting and not dock because of what welding deformation occurred with cage case otic placode.Generally take the on-the-spot pairing welding of single group otic placode of non-interchangeability to solve; So both lost the connect interchangeability of transmission device with the assembling of cage case; Also make because of cage case or transmission device and before assembly welding, descend and operation problem occurs after causing assembling because of the adjusting position mal produces assembly precision; Operation problem is misfitted and is produced deflecting force and increase running resistance like be in operation running orbit and the tooth bar of running orbit and main chord outline or gear, backgear of guide roller of: transmission device; The lighter causes the reduction of driving efficiency and increases the additional wear of these parts and aggravate to lose efficacy that weight person is prone to make side guide roller or backgear connector to make the transmission device cisco unity malfunction also possibly lead to safety misadventure because of fracture by fatigue comes off; Frequent start-stop impact takes place because of starting acceleration/accel and the existence that stops deceleration/decel with the running velocity of transmission device and live load different in 2. hard connecting mode in various degree when operation.It is the frequent the most directly reason of the wear-out failure of building hoist transmission device, aggravation failure that the start and stop of building hoist are impacted, bigger to occupant's traveling comfort influence.Present optimal way is to take frequency control to address this problem.But up to 99% the common building hoist, its workout cost is too high, is unfavorable for promoting the use of concerning the occupancy volume ratio.Therefore, should provide a kind of new technical scheme to address the above problem.
Summary of the invention
The objective of the invention is: to above-mentioned deficiency; Provide a kind of building hoist flexible adjustable transmission device; What its adjustable draw bail through a kind of simple and easy practicality had both solved transmission device and cage case connects interchangeability and assembly precision problem, has also solved the start and stop shock problem that hard connection brought to a certain extent.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
The flexible adjustable transmission device of building hoist comprises electrical motor, retarder, flexible adjustable connecting device, adjustable backgear, hook with safety tong, transmission mainboard and drive frame, and said transmission mainboard is fixedly installed on the drive frame; Said drive frame is provided with flexible adjustable connecting device; Said electrical motor is connected with retarder through high inertia elastic coupler, and said electrical motor, retarder, high inertia elastic coupler and adjustable backgear all are fixed on the transmission mainboard, on the output shaft of said retarder gear are installed; Tooth bar engagement on said gear and the guide rail bracket; The outside of said electrical motor is equipped with dc electromagnetic brake, and up and down guide roller and side guide roller are installed on the said drive frame, and said guide roller, adjustable backgear and side guide roller are up and down all joined with the main chord of building hoist guide rail bracket and being incorporated in the rolling of leading on the main chord; The adjustable connecting device of said flexibility comprises transmission device flexible unit and the adjustable connecting device of transmission device; Said transmission device flexible unit and the adjustable connecting device of transmission device are connected to one, and said transmission device flexible unit comprises two one group some groups of belleville springs, and the above support ring of said some groups of belleville springs is that the boundary divides two groups of series combinations up and down; The belleville spring group of said series combination is installed on the same hanging axis; The top of said belleville spring group is provided with the packing ring that it is carried out pretension, and the bottom of said belleville spring group is provided with support sleeve, and the outside of said belleville spring group is provided with overcoat; Said outer putting is fixed with bracing ring, following bracing ring and cover plate; Said cover plate is captiveed joint with connecting panel through connecting element, is provided with cushion blocking between said cover plate and the connecting panel, and said overcoat is through connecting panel and the welding of transmission device drive frame; The adjustable connecting device of said transmission device comprises joint bearing block, plain radial bearing, minor axis and otic placode; Adjustment cover about said joint bearing block biside plate is fixed with, between the adjustment cover, said otic placode one end was fixed on the minor axis through plain radial bearing about said plain radial bearing was installed on through minor axis; The said otic placode other end is connected otic placode or cage case attaching parts captive joint with the cage case, said joint bearing block and the welding of transmission device drive frame are fixing.
Said transmission mainboard is fixed on the drive frame through drive frame base plate attaching parts and buffering external member.
Said transmission device flexible unit and the adjustable connecting device of transmission device are integrated through excessive beam soldering group.
Said transmission device flexible unit and the adjustable connecting device of transmission device are connected to one through hanging axis and Hough chuck.
Said otic placode is connected otic placode or cage case attaching parts captive joint through attaching parts with the cage case.
Said otic placode is connected otic placode or cage case attaching parts captive joint through hanging axis and Hough chuck with the cage case.
Said attaching parts is pin and locking plate.
Said connecting element is bolt, nut that is used and the locating dowel pin of being located at the bolt bottom.
Advantage of the present invention is: compare with traditional building hoist transmission device, structural framing is simple and practical.The project organization of adjustable connection had both solved a connection interchangeability difficult problem, had also improved the connection precision; The flexible design structure has solved the ubiquity difficult problem that start and stop are impacted effectively, and commonality is stronger, and Applicable scope is big, and is safe and reliable, and cost is lower.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 lateral plan.
Fig. 3 is another embodiment of the present invention structural representation.
Fig. 4 is Fig. 3 lateral plan.
Fig. 5 is flexible adjustable connecting device embodiment 1 external structure scheme drawing.
Fig. 6 is Fig. 5 inner structure cutaway view.
Fig. 7 is flexible adjustable connecting device embodiment 2 external structure scheme drawings.
Fig. 8 is Fig. 7 inner structure cutaway view.
Fig. 9 is flexible adjustable connecting device embodiment 3 external structure scheme drawings.
Figure 10 is Fig. 9 inner structure cutaway view.
Figure 11 is flexible adjustable connecting device embodiment 4 external structure scheme drawings.
Figure 12 is Figure 11 inner structure cutaway view.
Wherein: 1, drive frame, 2, guide rail bracket, 3, the transmission mainboard, 4, high inertia elastic coupler, 5, adjustable backgear, 6, dc electromagnetic brake; 7, main chord, 8, drive frame mainboard attaching parts and buffering external member, 9, guide roller up and down, 10, flexible adjustable connecting device, 11, the side guide roller, 12, tooth bar; 13, hook with safety tong, 14, gear, 15, electrical motor, 16, retarder, 17, the transmission device flexible unit, 18, the adjustable connecting device of transmission device; 19, belleville spring, 20, the upper support circle, 21, hanging axis, 22, packing ring, 23, support sleeve, 24, overcoat; 25, following bracing ring, 26, cover plate, 27, connecting panel, 28, cushion blocking, 29, joint bearing block, 30, plain radial bearing; 31, minor axis, 32, otic placode, 33, about the adjustment cover, 34, the cage case connects otic placode, 35, excessive beam; 36, Hough chuck, 37, attaching parts, 38, bolt, 39, nut, 40, locating dowel pin.
The specific embodiment
Embodiment 1
Like Fig. 1,2,5, shown in 6; The flexible adjustable transmission device of building hoist of the present invention; Comprise electrical motor 15, retarder 16, flexible adjustable connecting device 10, adjustable backgear 5, hook with safety tong 13, transmission mainboard 3 and drive frame 1, transmission mainboard 3 is fixedly installed on the drive frame 1, and drive frame 1 is provided with flexible adjustable connecting device 10; Electrical motor 15 is connected with retarder 16 through high inertia elastic coupler 4; Electrical motor 15, retarder 16, high inertia elastic coupler 4 and adjustable backgear 5 all are fixed on the transmission mainboard 3, and gear 14 is installed on the output shaft of retarder 16, tooth bar 12 engagements on gear 14 and the guide rail bracket 2; The outside of electrical motor 15 is equipped with dc electromagnetic brake 6; Up and down guide roller 9 and side guide roller 11 are installed on the drive frame 1, and guide roller 9, adjustable backgear 5 and side guide roller 11 are all joined with the main chord 7 of building hoist guide rail bracket 2 and being incorporated on the main chord 7 guiding and rolling up and down, and transmission mainboard 3 is through drive frame base plate attaching parts and cushion external member 8 and be fixed on the drive frame 1; Flexible adjustable connecting device 10 comprises transmission device flexible unit 17 and the adjustable connecting device 18 of transmission device; Transmission device flexible unit 17 comprises two one group some groups of belleville springs 19, and some groups of belleville spring 19 above support rings 20 divide two groups of series combinations up and down for the boundary, and the belleville spring of series combination is installed on the same hanging axis 21 for 19 groups; The top of belleville spring group is provided with the packing ring 22 that it is carried out pretension; The bottom of belleville spring group is provided with support sleeve 23, and the outside of belleville spring group is provided with overcoat 24, is fixed with bracing ring 20, following bracing ring 25 and cover plate 26 on the overcoat 24; Cover plate 26 is captiveed joint with connecting panel 27 through connecting element, and connecting element is bolt 38, nut 39 that is used and the locating dowel pin 40 of being located at bolt 38 bottoms.Be provided with cushion blocking 28 between cover plate 26 and the connecting panel 27; Overcoat 24 is through connecting panel 27 and 1 welding of transmission device drive frame; Transmission device is adjustable, and connecting device 18 comprises joint bearing block 29, plain radial bearing 30, minor axis 31 and otic placode 32; Adjustment cover 33 about joint bearing block 29 biside plates are fixed with, between the adjustment cover 33, otic placode 32 1 ends were fixed on the minor axis 31 through plain radial bearing 30 about plain radial bearing 30 was installed on through minor axis 31; Otic placode 32 other ends are connected otic placode 34 through attaching parts 37 captive joints with the cage case; Attaching parts 37 is pin and locking plate, and joint bearing block 29 is fixing with 1 welding of transmission device drive frame, and transmission device flexible unit 17 is integrated through excessive beam 35 soldering group with the adjustable connecting device 18 of transmission device.
Embodiment 2
Like Fig. 3,4,7, shown in 8; The flexible adjustable transmission device of building hoist of the present invention; Comprise electrical motor 15, retarder 16, flexible adjustable connecting device 10, adjustable backgear 5, hook with safety tong 13, transmission mainboard 3 and drive frame 1, transmission mainboard 3 is fixedly installed on the drive frame 1, and drive frame 1 is provided with flexible adjustable connecting device 10; Electrical motor 15 is connected with retarder 16 through high inertia elastic coupler 4; Electrical motor 15, retarder 16, high inertia elastic coupler 4 and adjustable backgear 5 all are fixed on the transmission mainboard 3, and gear 14 is installed on the output shaft of retarder 16, tooth bar 12 engagements on gear 14 and the guide rail bracket 2; The outside of electrical motor 15 is equipped with dc electromagnetic brake 6; Up and down guide roller 9 and side guide roller 11 are installed on the drive frame 1, and guide roller 9, adjustable backgear 5 and side guide roller 11 are all joined with the main chord 7 of building hoist guide rail bracket 2 and being incorporated on the main chord 7 guiding and rolling up and down, and transmission mainboard 3 is through drive frame base plate attaching parts and cushion external member 8 and be fixed on the drive frame 1; Flexible adjustable connecting device 10 comprises transmission device flexible unit 17 and the adjustable connecting device 18 of transmission device; Transmission device flexible unit 17 comprises two one group some groups of belleville springs 19, and some groups of belleville spring 19 above support rings 20 divide two groups of series combinations up and down for the boundary, and the belleville spring of series combination is installed on the same hanging axis 21 for 19 groups; The top of belleville spring group is provided with the packing ring 22 that it is carried out pretension; The bottom of belleville spring group is provided with support sleeve 23, and the outside of belleville spring group is provided with overcoat 24, is fixed with bracing ring 20, following bracing ring 25 and cover plate 26 on the overcoat 24; Cover plate 26 is captiveed joint with connecting panel 27 through connecting element, and connecting element is bolt 38, nut 39 that is used and the locating dowel pin 40 of being located at bolt 38 bottoms.Be provided with cushion blocking 28 between cover plate 26 and the connecting panel 27; Overcoat 24 is through connecting panel 27 and 1 welding of transmission device drive frame; Transmission device is adjustable, and connecting device 18 comprises joint bearing block 29, plain radial bearing 30, minor axis 31 and otic placode 32; Adjustment cover 33 about joint bearing block 29 biside plates are fixed with; Between the adjustment cover 33, otic placode 32 1 ends were fixed on the minor axis 31 through plain radial bearing 30 about plain radial bearing 30 was installed on through minor axis 31, and otic placode 32 other ends are connected otic placode 34 captive joints through hanging axis 21 and Hough chuck 36 with the cage case; Joint bearing block 29 is fixing with 1 welding of transmission device drive frame, and transmission device flexible unit 17 is integrated through excessive beam 35 soldering group with the adjustable connecting device 18 of transmission device.
Embodiment 3
Like Fig. 9, shown in 10, the flexible adjustable transmission device of building hoist of the present invention, transmission device flexible unit 17 is connected to one through hanging axis 21 and Hough chuck 36 with the adjustable connecting device 18 of transmission device, and all the other structures are with embodiment 1.
Implement 4
Like Figure 11, shown in 12, the flexible adjustable transmission device of building hoist of the present invention, transmission device flexible unit 17 is connected to one through hanging axis 21 and Hough chuck 36 with the adjustable connecting device 18 of transmission device, and all the other structures are with embodiment 2.

Claims (8)

1. the flexible adjustable transmission device of building hoist; It is characterized in that: comprise electrical motor, retarder, flexible adjustable connecting device, adjustable backgear, hook with safety tong, transmission mainboard and drive frame; Said transmission mainboard is fixedly installed on the drive frame, and said drive frame is provided with flexible adjustable connecting device, and said electrical motor is connected with retarder through high inertia elastic coupler; Said electrical motor, retarder, high inertia elastic coupler and adjustable backgear all are fixed on the transmission mainboard; On the output shaft of said retarder gear is installed, the tooth bar engagement on said gear and the guide rail bracket, the outside of said electrical motor is equipped with dc electromagnetic brake; Guide roller and side guide roller up and down are installed on the said drive frame; Said up and down guide roller, adjustable backgear and side guide roller are all joined with the main chord of building hoist guide rail bracket and being incorporated in the rolling of leading on the main chord, and the adjustable connecting device of said flexibility comprises transmission device flexible unit and the adjustable connecting device of transmission device, and said transmission device flexible unit and the adjustable connecting device of transmission device are connected to one; Said transmission device flexible unit comprises two one group some groups of belleville springs; The above support ring of said some groups of belleville springs is that the boundary divides two groups of series combinations up and down, and the belleville spring group of said series combination is installed on the same hanging axis, and the top of said belleville spring group is provided with the packing ring that it is carried out pretension; The bottom of said belleville spring group is provided with support sleeve; The outside of said belleville spring group is provided with overcoat, and said outer putting is fixed with bracing ring, following bracing ring and cover plate, and said cover plate is captiveed joint with connecting panel through connecting element; Be provided with cushion blocking between said cover plate and the connecting panel; Said overcoat is through connecting panel and the welding of transmission device drive frame, and the adjustable connecting device of said transmission device comprises joint bearing block, plain radial bearing, minor axis and otic placode, adjustment cover about said joint bearing block biside plate is fixed with; Between adjustment was overlapped about said plain radial bearing was installed on through minor axis; Said otic placode one end is fixed on the minor axis through plain radial bearing, and the said otic placode other end is connected otic placode or cage case attaching parts captive joint with the cage case, and said joint bearing block and the welding of transmission device drive frame are fixing.
2. the flexible adjustable transmission device of building hoist according to claim 1 is characterized in that: said transmission mainboard is fixed on the drive frame through drive frame base plate attaching parts and buffering external member.
3. the flexible adjustable transmission device of building hoist according to claim 1, it is characterized in that: said transmission device flexible unit and the adjustable connecting device of transmission device are integrated through excessive beam soldering group.
4. the flexible adjustable transmission device of building hoist according to claim 1, it is characterized in that: said transmission device flexible unit and the adjustable connecting device of transmission device are connected to one through hanging axis and Hough chuck.
5. the flexible adjustable transmission device of building hoist according to claim 1, it is characterized in that: said otic placode is connected otic placode or cage case attaching parts captive joint through attaching parts with the cage case.
6. the flexible adjustable transmission device of building hoist according to claim 1, it is characterized in that: said otic placode is connected otic placode or cage case attaching parts captive joint through hanging axis and Hough chuck with the cage case.
7. the flexible adjustable transmission device of building hoist according to claim 5, it is characterized in that: said attaching parts is pin and locking plate.
8. the flexible adjustable transmission device of building hoist according to claim 1, it is characterized in that: said connecting element is bolt, nut that is used and the locating dowel pin of being located at the bolt bottom.
CN 201110427312 2011-12-20 2011-12-20 Flexibility-adjustable transmission mechanism of construction lifter Active CN102515002B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110427312 CN102515002B (en) 2011-12-20 2011-12-20 Flexibility-adjustable transmission mechanism of construction lifter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110427312 CN102515002B (en) 2011-12-20 2011-12-20 Flexibility-adjustable transmission mechanism of construction lifter

Publications (2)

Publication Number Publication Date
CN102515002A true CN102515002A (en) 2012-06-27
CN102515002B CN102515002B (en) 2013-12-25

Family

ID=46286158

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110427312 Active CN102515002B (en) 2011-12-20 2011-12-20 Flexibility-adjustable transmission mechanism of construction lifter

Country Status (1)

Country Link
CN (1) CN102515002B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663028A (en) * 2013-12-18 2014-03-26 启东大同电机有限公司 Flexible connection device with column pressure weighing function of construction hoist drive mechanism
CN103879858A (en) * 2014-03-17 2014-06-25 中联重科股份有限公司 Building hoist and method for lifting point setting and assembly thereof
CN104118797A (en) * 2013-04-24 2014-10-29 上海道多汽车设备有限公司 Suspension ring used for automobile assembly line elevator
CN104370192A (en) * 2014-10-20 2015-02-25 启东大同电机有限公司 Dual-braking transmission mechanism of construction hoist

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087579A1 (en) * 1982-02-24 1983-09-07 Inventio Ag Elevator winch
CN87204522U (en) * 1987-08-20 1988-05-25 秦文选 Synchronous teeth type belt driving hoister
CN2241734Y (en) * 1996-02-15 1996-12-04 北京市北方惠利技术公司 Special-purpose equipment conveying car in stereo automatic carport
US20080067012A1 (en) * 2006-09-15 2008-03-20 Kobrehel Michael D Brake Assembly for In-Vehicle Platform Lift
CN201660384U (en) * 2009-05-15 2010-12-01 刘建国 Novel transmission device of gear rack construction lifter
CN202542645U (en) * 2011-12-20 2012-11-21 启东大同电机有限公司 Flexible and adjustable transmission mechanism of construction elevator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087579A1 (en) * 1982-02-24 1983-09-07 Inventio Ag Elevator winch
CN87204522U (en) * 1987-08-20 1988-05-25 秦文选 Synchronous teeth type belt driving hoister
CN2241734Y (en) * 1996-02-15 1996-12-04 北京市北方惠利技术公司 Special-purpose equipment conveying car in stereo automatic carport
US20080067012A1 (en) * 2006-09-15 2008-03-20 Kobrehel Michael D Brake Assembly for In-Vehicle Platform Lift
CN201660384U (en) * 2009-05-15 2010-12-01 刘建国 Novel transmission device of gear rack construction lifter
CN202542645U (en) * 2011-12-20 2012-11-21 启东大同电机有限公司 Flexible and adjustable transmission mechanism of construction elevator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104118797A (en) * 2013-04-24 2014-10-29 上海道多汽车设备有限公司 Suspension ring used for automobile assembly line elevator
CN103663028A (en) * 2013-12-18 2014-03-26 启东大同电机有限公司 Flexible connection device with column pressure weighing function of construction hoist drive mechanism
CN103879858A (en) * 2014-03-17 2014-06-25 中联重科股份有限公司 Building hoist and method for lifting point setting and assembly thereof
CN103879858B (en) * 2014-03-17 2016-02-17 中联重科股份有限公司 Building hoist and suspension centre thereof set and assemble method
CN104370192A (en) * 2014-10-20 2015-02-25 启东大同电机有限公司 Dual-braking transmission mechanism of construction hoist

Also Published As

Publication number Publication date
CN102515002B (en) 2013-12-25

Similar Documents

Publication Publication Date Title
CN202542645U (en) Flexible and adjustable transmission mechanism of construction elevator
CN102515002B (en) Flexibility-adjustable transmission mechanism of construction lifter
CN201671978U (en) Sliding coupling
CN111907537B (en) Electric locomotive, electric locomotive bogie and bogie driving system
CN101160475B (en) Friction clutch for at least one running wheel of a track-bound traction vehicle, bogie and the track-bound traction vehicle
CN107264561A (en) A kind of bogie and the rail vehicle with the bogie
CN205652140U (en) Bogie and have rail vehicle of this bogie
CN111365570A (en) Split type hydraulic drive power package diesel engine integrated system installation frame
CN107264560A (en) A kind of bogie and the rail vehicle with the bogie
CN203063956U (en) Anti-side-rolling twisted bar shaft for railway vehicle
RU133071U1 (en) RAIL VEHICLE
CN202390053U (en) Flexible adjustable connector for transmission mechanism of construction hoist
CN202175049U (en) Driving device for locomotives
CN104136302A (en) Railway truck having spring-connected equalizer and frame
CN104136303A (en) Railway truck having axle-pinned equalizer
CN203101657U (en) Device for lifting and automatically releasing hammer body of drop hammer vibration source
CN108317221A (en) Roller chain and chain drive system
CN202320353U (en) Connecting device used between rail wagon steering frame and car body
CN202542627U (en) Adjustable connection device for construction hoist transmission mechanism
CN211364559U (en) Railway vehicle bogie applied to 100% low-floor light rail vehicle and motor vehicle
CN115027509A (en) Rack vehicle running mechanism and rack vehicle
CN207810670U (en) A kind of stopper
CN202390041U (en) Flexible unit of transmission mechanism of construction lifting machine
CN217835629U (en) Positioning rotating arm with stress release groove
CN205876677U (en) Horizontal beam -pumping unit of crank connecting rod shock attenuation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant