CN201517024U - Low clearance armored rope electric hoist - Google Patents

Low clearance armored rope electric hoist Download PDF

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Publication number
CN201517024U
CN201517024U CN2009201801995U CN200920180199U CN201517024U CN 201517024 U CN201517024 U CN 201517024U CN 2009201801995 U CN2009201801995 U CN 2009201801995U CN 200920180199 U CN200920180199 U CN 200920180199U CN 201517024 U CN201517024 U CN 201517024U
Authority
CN
China
Prior art keywords
reel
brake
ratchet
support plate
speed
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.)
Expired - Fee Related
Application number
CN2009201801995U
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Chinese (zh)
Inventor
马宜海
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.)
WUHU NANQI CRANE CO Ltd
Original Assignee
WUHU NANQI CRANE 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 WUHU NANQI CRANE CO Ltd filed Critical WUHU NANQI CRANE CO Ltd
Priority to CN2009201801995U priority Critical patent/CN201517024U/en
Application granted granted Critical
Publication of CN201517024U publication Critical patent/CN201517024U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a low clearance armored rope electric hoist which comprises a reel part and a braking device, wherein one end of the reel part is provided with a speed reducer, the same end of the speed reducer of the reel part is further provided with a reel output shaft and a connecting support plate, the other end is provided with a reel end output shaft and a bearing support plate, the braking device comprises a ratchet, pawls and a speed sensing magnetic disk, the speed sensing magnetic disk is arranged outside the bearing support plate and is fixedly connected with the reel end output shaft, a speed sensor which is matched with the speed sensing magnetic disk is arranged on the speed sensing magnetic disk, the ratchet is sleeved on the reel on one end of the speed reducer and is meshed with two pawls which are arranged on the upper end of the connecting support plate and are distributed on the positive front portion for 90 degrees, the speed sensor is connected with a ratchet braking electromagnet of the ratchet wheels through a speed control system, a drum type brake which is coaxial with the reel part is further arranged inside the reel part bearing support plate, the technical solution is adopted, multi-stage brake is realized, and the safety of hoisted goods and field staffs can be guaranteed when the electric hoist is used to hang heavy objects.

Description

A kind of low clearance steel-wire rope type electric block
Technical field
The utility model relates to a kind of weight-lifting equipment, relates in particular to a kind of low clearance steel-wire rope type electric block.
Background technology
Existing low clearance steel-wire rope type electric block comprises electrical motor, motor reducer and the reel portion that drives by reducing motor with dust boot, reel portion comprises that the reel end output shaft that reel and reel two ends are provided with respectively is connected with the reel output shaft with the slow-speed shaft that reel output shaft motor reducer has, reduction case and dust boot one end have, and to be connected support plate affixed, electrical motor places reel portion dust boot opening one side and affixed with retarder, the reduction case arranged outside has first drg, electrical motor is a braking motor, and the axis of electrical motor is parallel with the line of centers of reel output shaft; Adopted the two-stage braking that a drg respectively is set at the reel two ends, but under the long-time situation about using, the braking effect of motor descends, the friction brake torque of the drg at reel two ends descends, the requirement of out of reach braking, the weight by gravity of lifting can produce downward impulsive force, exists to injure on-the-spot staff or the hidden danger of breaking the goods of lifting by a crashing object.
The utility model content
The technical problems to be solved in the utility model provides a kind of low clearance steel-wire rope type electric block, and this kind low clearance steel-wire rope type electric block can keep the good braking performance and good after long-time the use, eliminates safe hidden trouble.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of electric block, comprise reel portion and brake equipment, reel portion one end is provided with reductor, the reel portion same end of reductor also is provided with the reel output shaft and is connected support plate, the other end is provided with reel end output shaft and bearing support plate, described brake equipment comprises ratchet, ratchet and velocity response disk, the velocity response disk is arranged on the bearing support plate outside and affixed with reel end output shaft, the velocity response disk is provided with the speed sensor adaptive with it, ratchet sleeve is connected on the reductor one end reel and is connected two ratchets that support plate upper end and dead ahead be 90 ° of distributions and meshes with being arranged on, and speed sensor links to each other by the ratchet brake electromagnet that speed control system and ratchet have.
Described reel portion bearing support plate inboard also is provided with the drum brake mechanism coaxial with reel portion.
Described drum brake mechanism is provided with drum brake mechanism electromagnet, brake scotch push rod, brake scotch adjust bar, spring and brake scotch, the drum brake mechanism electromagnet is connected with the brake scotch push rod of drum brake mechanism, the brake scotch adjust bar is connected with brake scotch by spring, and brake scotch and reel inwall are fitted.
Described ratchet brake electromagnet is provided with a connecting piece, and the ratchet brake electromagnet is affixed by connecting strap and ratchet.
Described velocity response disk is enclosed in the speed control mechanism protective cover of reel bearing support plate arranged outside, and speed sensor passes protective cover and is connected with the velocity response disk.
A kind of low clearance steel-wire rope type electric block of the utility model adopts such structure, compared with prior art, has realized multistage brake, during the electric block hoisting heavy, realizes first order braking by braking motor; Retarder high speed shaft bonded assembly first drg is realized second stage braking, for guaranteeing the effect of braking, change the integral structure of prior art electric block and strengthen the diameter of retarder high speed shaft, satisfy brake torque, if the electric block hoisting heavy rises or when descending motor can not brake the hoisting heavy that second stage braking can safety; Three-stage brake is realized by the brake equipment on the reel that is arranged on drum mechanism built, this brake equipment is by the drum type electromagnetic brake of the inwall that is installed in reel one end, ratchet device and speed control mechanism are realized, when reel decline rotating speed when setting rotating speed, speed sensor is given the drum brake mechanism electromagnet with power supply signal by the velocity response disk, the drum brake mechanism electromagnet promotes the brake scotch push rod rapidly and draws back the brake scotch pressure spring and make two brake scotch friction reel inwalls reduce reel downslide rotating speeds, two groups of ratchet electromagnet promote ratchet and the steady firmly reel of reporting of ratchet engaged, the weight of the aerial lifting of reel braking no longer glides, guarantee that lifting cargo avoids damaging staff's safety of operating surface.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the scheme drawing of a kind of low clearance steel-wire rope type electric block of the utility model;
Fig. 2 is an A-A cutaway view shown in Figure 1;
Fig. 3 is a B-B cutaway view shown in Figure 1;
Fig. 4 is the lateral plan of a kind of low clearance steel-wire rope type electric block of the utility model shown in Figure 1;
Be labeled as among the figure: 1, electrical motor; 2, motor output gear; 3, retarder first gear; 4, retarder high speed shaft; 5, retarder second gear; 6, retarder middling speed axle; 7, retarder the 3rd gear; 8, retarder slow-speed shaft; 9, reel output shaft; 10, retarder; 11 connect support plate; 12, dust boot; 13, first drg; 14, reel; 15, velocity response disk; 16, speed control mechanism protective cover; 17, reel end output shaft; 18, drum brake mechanism; 19 reel bearing support plates; 20, speed sensor; 21, brake scotch; 22 brake scotch adjusts bar; 23, drum brake electromagnet; 24, brake scotch push rod; 25, spring; 26, ratchet brake electromagnet; 27, ratchet; 28, ratchet connecting strap; 29, ratchet; 30 ratchet supports.
The specific embodiment
Contrast accompanying drawing below,, the specific embodiment of the present utility model is described in further detail by description to embodiment.
The scheme drawing of a kind of low clearance steel-wire rope type electric block of the utility model shown in Figure 1; Fig. 4 is the lateral plan of a kind of low clearance steel-wire rope type electric block of the utility model shown in Figure 1; A kind of low clearance steel-wire rope type electric block of the utility model as shown in the figure, comprise reel portion and brake equipment, reel portion comprises electrical motor 1, motor reducer 10, reel 14 and dust boot 12, the reel portion same end of reductor is provided with reel output shaft 9 and is connected support plate 11, the other end is provided with reel end output shaft 17 and bearing support plate 19, the slow-speed shaft 8 of motor reducer 10 is connected with reel output shaft 9, retarder 10 casings are with to be connected support plate 11 affixed, electrical motor 1 places reel dust boot 12 openings, one side and affixed with retarder 10, and retarder 10 casing arranged outside have first drg 13; Motor output shaft is provided with motor output gear 2, motor output gear 2 meshes with first gear 3 of retarder 10, first gear 3 drives second gear 5 by high speed shaft 4, second gear 5 drives the 3rd gear 7 by middling speed axle 6, the 3rd gear 7 is connected with reel output shaft 9 by retarder slow-speed shaft 8 and drives reel 14 rotations, the high speed shaft 4 of retarder 10 is connected with first drg 13, realizes two stage braking; Reel portion also is provided with brake equipment.
Fig. 2 is the A-A cutaway view of a kind of low clearance steel-wire rope type electric block of the utility model shown in Figure 1; Brake equipment as shown in the figure comprises ratchet 27, ratchet 29 and velocity response disk 15, velocity response disk 15 is arranged on bearing support plate 19 outsides and affixed with reel end output shaft 17, velocity response disk 15 is provided with the speed sensor adaptive with it 20, ratchet 27 is socketed on the reductor one end reel and with being arranged on two ratchets that are 90 ° of distributions 29 that are connected on the support plate 11 and meshes, and speed sensor 20 links to each other by the ratchet brake electromagnet 26 that speed control system and ratchet 27 have; Ratchet brake electromagnet 26 is provided with a connecting piece 28, and ratchet brake electromagnet 26 is affixed by connecting strap 28 and ratchet 29; Velocity response disk 15 is enclosed in the speed control mechanism protective cover 16 of reel bearing support plate 19 arranged outside, and speed sensor 20 passes protective cover 16 and is connected with velocity response disk 15.
Fig. 3 is the B-B cutaway view of a kind of low clearance steel-wire rope type electric block of the utility model shown in Figure 1; Reel portion bearing support plate 19 inboards as shown in the figure also are provided with the drum brake mechanism 18 coaxial with reel portion; Drum brake mechanism 18 is provided with drum brake mechanism electromagnet 23, brake scotch push rod 24, brake scotch adjust bar 22, spring 25 and brake scotch 21, drum brake mechanism electromagnet 23 is connected with the brake scotch push rod 24 of drum brake mechanism, brake scotch adjust bar 22 is connected with brake scotch 18 by spring 25, and brake scotch 21 is fitted with reel 14 inwalls.
Use the excessive or bearing in reduction gears of brake system wearing and tearing of motor 1 for a long time when electric block, gear, system units such as tooth axle damage, and the excessive brake failure of two stage braking first drg, 13 wearing and tearing, the weight of electric block lifting aloft glides, the speed that by gravity impacts downwards during greater than the setting rotating speed of drum mechanism built by speed control mechanism the fastest time with motor 1 supply disconnecton, speed sensor 20 is given drum brake mechanism electromagnet 23 with power supply signal by velocity response disk 15, drum brake mechanism electromagnet 23 draws back brake scotch pressure spring 25 with brake scotch adjust bar 22 adhesives promotion brake scotch push rod 24 makes two brake scotch, 21 friction reel inwalls reduce reel downslide rotating speeds, two groups of ratchet electromagnet 26 promote ratchet 29 and steadily report reel 14 with ratchet 27 engagements, the weight that braking is being lifted by crane can not glide, and has guaranteed terrestrial operation personal security and wayside equipment safety.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.

Claims (5)

1. low clearance steel-wire rope type electric block, comprise reel portion and brake equipment, reel portion one end is provided with reductor, the reel portion same end of reductor also is provided with reel output shaft (9) and is connected support plate (11), the other end is provided with reel end output shaft (17) and bearing support plate (19), it is characterized in that: described brake equipment comprises ratchet (27), ratchet (29) and velocity response disk (15), velocity response disk (15) is arranged on bearing support plate (19) outside and affixed with reel end output shaft (17), and velocity response disk (15) is provided with the speed sensor adaptive with it (20); Ratchet (27) is socketed on the reductor one end reel and with being arranged on two ratchets (29) that are 90 ° of distributions that are connected on the support plate (11) and meshes, and speed sensor (20) links to each other by the ratchet brake electromagnet (26) that speed control system and ratchet (27) have.
2. according to the described a kind of low clearance steel-wire rope type electric block of claim 1, it is characterized in that: the inboard drum brake mechanism coaxial (18) that also be provided with of described reel portion's bearing support plate (19) with reel portion.
3. according to the described a kind of low clearance steel-wire rope type electric block of claim 2, it is characterized in that: described drum brake mechanism (18) is provided with drum brake mechanism electromagnet (23), brake scotch push rod (24), brake scotch adjust bar (22), spring (25) and brake scotch (21), drum brake mechanism electromagnet (23) is connected with the brake scotch push rod (24) of drum brake mechanism, brake scotch adjust bar (22) is connected with brake scotch (18) by spring (25), and brake scotch (21) is fitted with reel (14) inwall.
4. according to the described a kind of low clearance steel-wire rope type electric block of claim 1, it is characterized in that: described ratchet brake electromagnet (26) is provided with a connecting piece (28), and ratchet brake electromagnet (26) is affixed by connecting strap (28) and ratchet (29).
5. according to the described a kind of low clearance steel-wire rope type electric block of claim 1, it is characterized in that: described velocity response disk (15) is enclosed in the speed control mechanism protective cover (16) of reel bearing support plate (19) arranged outside, and speed sensor (20) passes protective cover (16) and is connected with velocity response disk (15).
CN2009201801995U 2009-10-29 2009-10-29 Low clearance armored rope electric hoist Expired - Fee Related CN201517024U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201801995U CN201517024U (en) 2009-10-29 2009-10-29 Low clearance armored rope electric hoist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201801995U CN201517024U (en) 2009-10-29 2009-10-29 Low clearance armored rope electric hoist

Publications (1)

Publication Number Publication Date
CN201517024U true CN201517024U (en) 2010-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201801995U Expired - Fee Related CN201517024U (en) 2009-10-29 2009-10-29 Low clearance armored rope electric hoist

Country Status (1)

Country Link
CN (1) CN201517024U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318760A (en) * 2013-07-01 2013-09-25 大连华锐重工集团股份有限公司 Low-clearance hanging crane trolley
CN106672811A (en) * 2016-12-13 2017-05-17 常守祥 Novel lightweight bridge crane
CN111017762A (en) * 2019-12-19 2020-04-17 上海宝冶工程技术有限公司 Ship lifting tractor
CN112124336A (en) * 2020-08-28 2020-12-25 嘉兴学院 Piping lane inspection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103318760A (en) * 2013-07-01 2013-09-25 大连华锐重工集团股份有限公司 Low-clearance hanging crane trolley
CN106672811A (en) * 2016-12-13 2017-05-17 常守祥 Novel lightweight bridge crane
CN111017762A (en) * 2019-12-19 2020-04-17 上海宝冶工程技术有限公司 Ship lifting tractor
CN111017762B (en) * 2019-12-19 2021-06-04 上海宝冶工程技术有限公司 Ship lifting tractor
CN112124336A (en) * 2020-08-28 2020-12-25 嘉兴学院 Piping lane inspection device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100630

Termination date: 20131029