CN111762685A - Movable crane buffer device - Google Patents

Movable crane buffer device Download PDF

Info

Publication number
CN111762685A
CN111762685A CN202010571135.9A CN202010571135A CN111762685A CN 111762685 A CN111762685 A CN 111762685A CN 202010571135 A CN202010571135 A CN 202010571135A CN 111762685 A CN111762685 A CN 111762685A
Authority
CN
China
Prior art keywords
crane
wheel
buffer
brake
buffer box
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
CN202010571135.9A
Other languages
Chinese (zh)
Other versions
CN111762685B (en
Inventor
靳慧
王洁
丁克勤
王立彬
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.)
Southeast University
Original Assignee
Southeast University
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 Southeast University filed Critical Southeast University
Priority to CN202010571135.9A priority Critical patent/CN111762685B/en
Publication of CN111762685A publication Critical patent/CN111762685A/en
Application granted granted Critical
Publication of CN111762685B publication Critical patent/CN111762685B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C7/00—Runways, tracks or trackways for trolleys or cranes
    • B66C7/16—Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses a movable crane buffering device which comprises a brake wheel, hook teeth, a wheel shaft, a buffer box and a brake arm, wherein the brake wheel is coaxially arranged with a crane wheel, the hook teeth are uniformly distributed on the periphery of the brake wheel, the wheel shaft is positioned at the central shaft of the brake wheel and extends out, the buffer box is positioned beside a crane track and provided with an opening towards the crane direction, the brake arm is obliquely arranged on the outer side of the buffer box, one end of the brake arm is rotatably connected with the buffer box, the other end of the brake arm can be contacted with the wheel shaft to realize buffering, and a plurality of buffering springs used for hooking the hook teeth. The crane buffering device provided by the invention utilizes the braking arm, the buffering spring and the end baffle on the buffering box to form multiple buffering functions, the buffering box can be arranged at any section of a track according to braking requirements, and the buffering box is simple in structure, safe and reliable and has a good popularization prospect.

Description

Movable crane buffer device
Technical Field
The invention relates to a buffer device, in particular to a movable crane buffer device.
Background
The crane is important equipment in industrial production, has the characteristics of large volume, great weight and high running speed, and the effective stop of the crane is favorable for production safety.
The crane brakes can be divided into three categories, electric braking, hydraulic braking and mechanical braking, according to the power source.
(1) Electric braking consumes mechanical motion by changing the wiring pattern of the electric motor to cause the electric motor to generate a retarding electromagnetic torque in a direction opposite to the direction of operation, thereby reducing or limiting the motion of the crane wheel.
(2) The hydraulic brake is realized by using a hydraulic damping device and has the functions of speed reduction and speed limitation.
(3) The mechanical brake completes the braking process by using a mechanical braking device and has various functions of speed reduction, parking, speed limitation and the like.
Electric power or hydraulic power and other external power are required to be introduced into the electric brake and the hydraulic brake, the structure of the device is complex, and the cost is high; the mechanical brake function is abundant, simple structure. In mechanical braking, a common braking device is an iron shoe and a rail clamp. The iron shoe stopping is realized by climbing wheels onto the iron shoe and braking by means of sliding friction, and the crane wheels are lifted in such a way, so that the overturning risk exists; the rail clamping device is arranged on the rail, so that the crane is connected with the rail, braking is performed by means of sliding resistance, but the requirement of the stop on the rail is high, and the rail is greatly influenced by a rail joint. The above prior art all solves the problem of stopping the crane wheel by a single stopping approach, and when the single approach fails to completely stop or the stopping fails, an effective secondary countermeasure is lacking.
Therefore, it is desired to solve the above problems.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a multistage buffering movable crane buffering device.
The technical scheme is as follows: in order to achieve the purpose, the invention discloses a movable crane buffer device which comprises a brake wheel, hook teeth, a wheel shaft, a buffer box and a brake arm, wherein the brake wheel is coaxially arranged with a crane wheel, the hook teeth are uniformly distributed on the periphery of the brake wheel, the wheel shaft is positioned at the central shaft of the brake wheel and extends out, the buffer box is positioned beside a crane track and provided with an opening towards the crane direction, the brake arm is obliquely arranged on the outer side of the buffer box, one end of the brake arm is rotatably connected with the buffer box, the other end of the brake arm can be in contact with the wheel shaft to achieve buffering, and a plurality of buffer springs used for hooking.
The height of the front end of the buffer box close to the crane is consistent with the height of the lowest point of the wheel shaft, and the tail end of the buffer box far away from the crane is provided with a buffer baffle higher than the wheel shaft.
Preferably, the damper is made of a damping material. The buffer baffle plate can further consume energy generated by the collision of the wheel shaft.
Furthermore, a horizontal spring and a vertical spring are respectively arranged on two sides of the brake arm.
Furthermore, one end of the horizontal spring is connected with the brake arm, and the other end of the horizontal spring is arranged at the tail end of the buffer box far away from the crane.
Preferably, the width of the inner side of the buffer tank is not less than the thickness of the brake wheel.
And moreover, the buffer box is detachably connected with the side surface of the crane track through a bolt.
Furthermore, the hook teeth are detachably connected with the brake wheel. The hook tooth on the brake wheel has detachability, and the hook tooth connected with the buffer spring is detached after braking is completed, so that the crane wheel can be loosened.
Preferably, the surface of the brake arm contacting the wheel axle is provided with a rubber layer for buffering.
Furthermore, the buffer spring is connected with the hook rings of the two side plates of the buffer box through hooks. The buffer spring is connected with the buffer box side plate by the hook, so that the buffer spring has detachability and replaceability; when the buffer spring is seriously damaged, the damaged buffer spring can be dismounted and replaced by a new buffer spring; after the crane is braked, the buffer spring can be detached, so that the hook teeth on the brake wheel are separated from the buffer spring, and the function of loosening the crane wheel is achieved.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: firstly, the interaction of a brake arm and a wheel shaft is utilized to form a first heavy buffer to stop the movement of a crane wheel; in addition, the buffer spring and the hook teeth are matched with each other to form a second buffer to stop the movement of the crane wheel; in addition, the buffer baffle of the buffer box is utilized to realize the third-time buffering, so that a good deceleration buffering effect is achieved; in addition, the invention utilizes the spring resistance formed by the combined action of the horizontal spring and the vertical spring to block the continuous rotation of the brake arm to realize buffering; the buffer baffle plate can further consume energy generated by the collision of the wheel shaft; the hook tooth on the brake wheel is detachable, and the hook tooth connected with the buffer spring is detached after braking is finished, so that the crane wheel can be loosened; in addition, the buffer spring and the side plate of the buffer box are connected by the hook and the shackle, so that the buffer spring has detachability and replaceability; when the buffer spring is seriously damaged, the damaged buffer spring can be dismounted and replaced by a new buffer spring; after the crane is braked, the buffer spring can be disassembled to separate the hook teeth on the brake wheel from the buffer spring, so that the function of loosening the crane wheel is achieved; finally, the invention has simple structure, safety, reliability and convenient popularization.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1 and 2, the movable crane damping device of the invention comprises a brake wheel 2, a hook 3, an axle 4, a damping box 6, a brake arm 7, a damping spring 8, a damping baffle 9, a horizontal spring 10 and a vertical spring 11.
The brake wheel 2 and the crane wheel 1 are coaxially arranged, spokes 12 are uniformly distributed on the brake wheel 2, a wheel shaft 4 extends out of the central shaft of the brake wheel, hook teeth 3 are uniformly distributed on the periphery of the brake wheel, the hook teeth 3 are inverted-C-shaped tooth claws, and the hook teeth 3 are detachably connected with the brake wheel 2; the hook tooth on the brake wheel has detachability, and the hook tooth connected with the buffer spring is detached after braking is completed, so that the crane wheel can be loosened.
When the crane wheel 1 rotates, the wheel shaft 4 drives the spokes 12 to rotate, and the spokes 12 drive the brake wheel 2 to rotate coaxially with the crane wheel 1. When braking demand, be fixed in the outside of hoist track 5 with buffer tank 6 through bolt 13, realize the detachable connection of buffer tank 6 and hoist track 5 side. The buffer box 6 comprises two side plates and a vertical plate, the buffer box 6 is provided with an opening facing the crane direction, and the width of the inner side of the buffer box 6 is not less than the thickness of the brake wheel 2.
The brake arm 7 is obliquely arranged on the outer side of the buffer box, one end of the brake arm 7 is rotatably connected with the buffer box, the other end of the brake arm 7 can be in contact with the wheel shaft to realize buffering, and a rubber layer with a buffering effect is arranged on the surface of the brake arm 7 in contact with the wheel shaft 4.
Horizontal spring 10 and vertical spring 11 are respectively arranged on two sides of brake arm 7, one end of horizontal spring 10 is connected with brake arm 7, the other end is connected with buffer box 6 through first upright post 14, and the other end of horizontal spring is located the tail end of buffer box 6 far away from the crane. One end of the vertical spring 11 is connected with the brake arm 7, and the other end is connected with the buffer box 6 through a second upright post 15. The buffer box is placed at a required crane stopping position, after the crane stops supplying power, the crane wheel 1 slides along the track, the brake wheel 2 moves towards the buffer box 6 along with the crane wheel 1, firstly, the wheel shaft 4 is in contact with the brake arm 7 on the outer side of the buffer box, the brake arm 7 rotates anticlockwise under the action of the pushing force, the horizontal spring 10 is pressed during the rotation process, the vertical spring 11 is pulled, the continuous rotation of the brake arm 7 is hindered under the combined action of the horizontal spring 10 and the vertical spring 11, so that the deceleration effect of the wheel shaft 4 is achieved, in the process that the wheel shaft 4 continues to move forwards, the horizontal spring 10 allows the brake arm 7 to continue to rotate, and in the process that the brake arm 7 rotates, the brake arm is continuously compressed to achieve the continuous buffering effect to serve as a first buffer to stop the crane wheel 1 from moving forwards.
A plurality of buffer springs 8 are sequentially arranged in the buffer box 6 along the track direction, hooks are arranged at two ends of each buffer spring 8, hook rings are arranged on two side plates of the buffer box 6, and the buffer springs 8 are connected with the hook rings on the two side plates of the buffer box 6 through the hooks at the two ends. The buffer spring and the side plate of the buffer box are connected by the hook and the hook ring, so that the buffer spring has detachability and replaceability; when the buffer spring is seriously damaged, the damaged buffer spring can be dismounted and replaced by a new buffer spring; after the crane is braked, the buffer spring can be detached, so that the hook teeth on the brake wheel are separated from the buffer spring, and the function of loosening the crane wheel is achieved.
The crane wheel 1 continues to move forwards, the hook teeth 3 move along with the brake wheel 2 and are sequentially hooked with the buffer springs 8 in the buffer tank 6, the farther the moving distance between the crane wheel 1 and the brake wheel 2 is, the more the buffer springs 8 hooked by the hook teeth 3 are, and the larger the deformation of the hooked buffer springs 8 is, the larger the buffering effect on the brake wheel 2 is; the buffer spring 8 and the hook teeth 3 form a second buffer stop for the forward movement of the crane wheel 1.
The height of the front end of the buffer box 6 close to the crane is consistent with the height of the lowest point of the wheel shaft, the tail end of the buffer box 6 far away from the crane is provided with a buffer baffle plate 9 higher than the wheel shaft, and the buffer baffle plate 9 is made of damping materials.
If the crane wheel 1 still does not stop moving under the action of the previous two buffers, the buffer baffle 9 of the buffer box 6 plays a role of a third buffer stop for the crane wheel 1 to move forward.
The crane buffering device provided by the invention utilizes the braking arm, the buffering spring and the end baffle on the buffering box to form multiple buffering functions, the buffering box can be arranged at any section of a track according to braking requirements, and the buffering box is simple in structure, safe and reliable and has a good popularization prospect.

Claims (10)

1. A mobile crane damping device, comprising: the crane comprises a brake wheel (2) coaxially arranged with a crane wheel (1), hook teeth (3) uniformly distributed on the periphery of the brake wheel, a wheel shaft (4) positioned at the center shaft of the brake wheel and extending out, a buffer box (6) positioned beside a crane track (5) and provided with an opening towards the crane direction, and a brake arm (7) obliquely arranged on the outer side of the buffer box, wherein one end of the brake arm is in contact with the wheel shaft to realize buffering with the other end of the buffer box in a rotatable manner, and a plurality of buffer springs (8) used for hooking the hook teeth to realize buffering are sequentially arranged in the buffer box (6) along the track direction.
2. Mobile crane damping device according to claim 1, characterized in that: the height of the front end of the buffer box (6) close to the crane is consistent with the height of the lowest point of the wheel shaft, and the tail end of the buffer box (6) far away from the crane is provided with a buffer baffle (9) higher than the wheel shaft.
3. Mobile crane damping device according to claim 2, characterized in that: the buffer baffle (9) is made of damping material.
4. Mobile crane damping device according to claim 1, characterized in that: and a horizontal spring (10) and a vertical spring (11) are respectively arranged on two sides of the brake arm (7).
5. Mobile crane damping device according to claim 4, characterized in that: one end of the horizontal spring (10) is connected with the brake arm (7), and the other end of the horizontal spring is arranged at the tail end of the buffer box (6) far away from the crane.
6. Mobile crane damping device according to claim 1, characterized in that: the width of the inner side of the buffer box (6) is not less than the thickness of the brake wheel (2).
7. Mobile crane damping device according to claim 1, characterized in that: the buffer box (6) is detachably connected with the side surface of the crane track (5) through a bolt (13).
8. Mobile crane damping device according to claim 1, characterized in that: the hook teeth (3) are detachably connected with the brake wheel (2).
9. Mobile crane damping device according to claim 1, characterized in that: the surface of the brake arm (7) contacting with the wheel axle (4) is provided with a rubber layer with a buffer function.
10. Mobile crane damping device according to claim 1, characterized in that: the buffer spring (8) is connected with the hook rings of the two side plates of the buffer box through hooks.
CN202010571135.9A 2020-06-22 2020-06-22 Movable crane buffer device Active CN111762685B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010571135.9A CN111762685B (en) 2020-06-22 2020-06-22 Movable crane buffer device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010571135.9A CN111762685B (en) 2020-06-22 2020-06-22 Movable crane buffer device

Publications (2)

Publication Number Publication Date
CN111762685A true CN111762685A (en) 2020-10-13
CN111762685B CN111762685B (en) 2021-04-27

Family

ID=72721569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010571135.9A Active CN111762685B (en) 2020-06-22 2020-06-22 Movable crane buffer device

Country Status (1)

Country Link
CN (1) CN111762685B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986564U (en) * 1972-11-20 1974-07-26
JPS60159781U (en) * 1984-03-31 1985-10-24 石川島播磨重工業株式会社 Crane safety device
CN101683954A (en) * 2008-09-26 2010-03-31 沈阳中铁安平制动技术开发有限公司 Bumper of track crane
CN202783247U (en) * 2012-09-25 2013-03-13 广东韶钢松山股份有限公司 Simple buffer bumper post
CN206266092U (en) * 2016-12-05 2017-06-20 中铁十九局集团第六工程有限公司 Detachable straddle truck walking stopper
CN109780087A (en) * 2019-01-11 2019-05-21 东南大学 A kind of crane braking device
CN209955996U (en) * 2019-06-08 2020-01-17 常熟市康达电器有限公司 Inclined shaft sports car protector

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986564U (en) * 1972-11-20 1974-07-26
JPS60159781U (en) * 1984-03-31 1985-10-24 石川島播磨重工業株式会社 Crane safety device
CN101683954A (en) * 2008-09-26 2010-03-31 沈阳中铁安平制动技术开发有限公司 Bumper of track crane
CN202783247U (en) * 2012-09-25 2013-03-13 广东韶钢松山股份有限公司 Simple buffer bumper post
CN206266092U (en) * 2016-12-05 2017-06-20 中铁十九局集团第六工程有限公司 Detachable straddle truck walking stopper
CN109780087A (en) * 2019-01-11 2019-05-21 东南大学 A kind of crane braking device
CN209955996U (en) * 2019-06-08 2020-01-17 常熟市康达电器有限公司 Inclined shaft sports car protector

Also Published As

Publication number Publication date
CN111762685B (en) 2021-04-27

Similar Documents

Publication Publication Date Title
CN111762685B (en) Movable crane buffer device
CN206219060U (en) A kind of steel-wire rope type electric block peculiar to vessel
CN102910541B (en) Ocean platform crane with buggy luffing mechanism
CN201351095Y (en) Double-brake mechanism for secondary hook of crane
CN201560057U (en) Double-hoist trolley used for crane
CN106743266A (en) A kind of many car conveying devices of single track
CN205312886U (en) Monkey running gear
CN102992186A (en) Electric hoisting and amplitude-varying carbon block stacking grippers
CN206705507U (en) A kind of mould assembles lift up rapidly device
CN204737620U (en) Electronic dolly of high stationarity
CN201864409U (en) Novel suspension device for elevator car
CN201343400Y (en) Braking electric block
JP2009274815A (en) Emergency brake device for crane trolley
CN104876121B (en) A kind of high stationarity motor-driven carrier
CN202716013U (en) Gantry crane turnover machine
CN203593547U (en) Hoisting mechanism of crane
CN209081287U (en) A kind of dedicated bridge crane of brick equipment
CN209081349U (en) A kind of double day rail pilers
CN2734714Y (en) Middle part rotatable suspended beam crane
CN103231996B (en) Pneumatic monorail trailer crane and trailer of pneumatic monorail trailer crane
CN210655955U (en) Manual sports car formula electric block
CN108975172A (en) A kind of dedicated bridge crane of brick equipment
CN207030223U (en) It is a kind of can be with the steady type elevator of direction movement
CN205687368U (en) A kind of traction system of screw type elevator
CN204847898U (en) Four hoisting point trolley

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