阅读说明：本技术 一种用于铁轨吊装的吊装车防止失速伤人机构 (A sling cart prevents stall injury people mechanism for rail hoist and mount ) 是由 林日国 王玮 于 2020-07-22 设计创作，主要内容包括：本发明涉及铁路铺设机器技术领域,且公开了一种用于铁轨吊装的吊装车防止失速伤人机构,包括固定盘,所述固定盘的内部开设有限位槽,所述固定盘的内部活动连接有转动轴,所述转动轴的正面固定连接有固定钉。该用于铁轨吊装的吊装车防止失速伤人机构,当吊装设备发生失速现场时,此时磁铁一在离心力作用下与负极触点二接触,从而改变磁性使得磁铁二吸住磁铁一,此时负极触点一和正极触点在滑动块的作用下接触,使得电流变体内部电流导通,从而达到了电流变体由液体变成固体的效果,使得推杆带动限位头运动到限位槽内部,此时转动杆被卡住,进一步使得转动轴停止转动,从而达到了吊装装置失速自锁,防止突然坠落的效果。(The invention relates to the technical field of railway laying machines, and discloses a mechanism for preventing a sling cart for hoisting a rail from stalling and injuring people. This a sling cart for rail hoist and mount prevents that stall from hindering people's mechanism, when hoisting equipment takes place the stall scene, magnet one this moment under centrifugal force effect with two contacts of negative pole contact, thereby change magnetism and make magnet two hold magnet one, negative pole contact one and positive pole contact under the effect of sliding block this moment, make the inside electric current of electrorheological body switch on, thereby the electrorheological body has been reached and has become the effect of solid by liquid, make the push rod drive the spacing head and move to the inside of spacing groove, the dwang is blocked this moment, further make axis of rotation stall, thereby hoist device stall has been reached, the effect of preventing suddenly falling.)

1. The utility model provides a sling cart prevents stall injury people's mechanism for rail hoist and mount, includes fixed disk (1), its characterized in that: the fixing plate comprises a fixing plate (1), a limiting groove (2) and a rotating shaft (3), wherein the fixing plate (1) is internally provided with the limiting groove (2), the rotating shaft (3) is fixedly connected with a fixing nail (4), the fixing nail (4) is fixedly connected with a rotating rod (5) outside, the rotating rod (5) is internally provided with a groove I (6), the groove I (6) is fixedly connected with a spring I (7) at the bottom inside, the spring I (7) is fixedly connected with a sliding block (8) at one side far away from the groove I (6), the sliding block (8) is fixedly connected with a magnet I (9) at the top, the magnet I (9) is movably connected with an anode contact (10) at the outer side, the right side of the anode contact (10) is fixedly connected with a spring II (11), the spring II (11) is fixedly connected with a cathode contact (12) at one side far away from, directly over fixedly connected with negative pole contact two (13) of recess (6), the right side fixedly connected with magnet two (14) of recess (6), recess two (51) have been seted up to the inside of dwang (5), the inside swing joint of recess two (51) has current variant (52), the inside bottom fixedly connected with spring three (53) of recess two (51), one side fixedly connected with push rod (54) of recess two (51) are kept away from in spring three (53), the top fixedly connected with of push rod (54) has stopper (55).

2. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: the fixed disc is characterized in that at least twenty limiting grooves (2) are formed in the fixed disc (1), and the diameters of the limiting grooves (2) are larger than those of the limiting heads (55).

3. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: and the rotating shaft (3) is fixedly connected with a hoisting shaft of the hoisting car.

4. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: the width of the bottom of the sliding block (8) is larger than that of the top of the sliding block, and the shortest distance from the center of the bottom of the sliding block (8) to the positive contact (10) is larger than the distance from the positive contact (10) to the negative contact I (12).

5. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: the polarity of the first magnet (9) is S pole under the action of the positive electrode contact (10), the first magnet (9) is right below the negative electrode contact (13), and the second magnet (14) is an S pole permanent magnet.

6. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: the positive contact (10) is positively charged, the negative contact I (12) and the negative contact II (13) are negatively charged, and the positive contact (10) is electrically connected with the negative contact I (12) and the interior of the current transformer (53).

7. A sling cart for lifting rails as claimed in claim 1, wherein the means for preventing stalling of a person comprises: the electrorheological fluid (53) is solid under the electrified condition and liquid under the non-electrified condition, and the main materials of the electrorheological fluid are gypsum, lime and carbon powder.

Technical Field

The invention relates to the technical field of railway laying machines, in particular to a mechanism for preventing stall and injury of people for a sling cart for hoisting a rail.

Background

Railway rails are laid and installed, a crane is often needed to hoist rails, due to the fact that the rails are heavy in weight, frequent work can cause mechanical fatigue of a hoisting device, the stalling phenomenon is caused, namely the rail falls rapidly in the lifting process, the falling rail can harm the life safety of surrounding workers, the hoisting device is made to stall and self-lock, the problem that sudden falling is important is solved, and therefore the sling cart for hoisting the rails is provided for preventing stalling and hurting people.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a mechanism for preventing people from being injured due to stall of a hoisting vehicle for hoisting a rail, which has the advantages of stall self-locking of a hoisting device and sudden falling prevention, and solves the problem that the hoisting device can generate mechanical fatigue due to heavy rail quality, so that the stall phenomenon is caused, namely the rail rapidly descends and falls in the hoisting process, and the life safety of surrounding workers is damaged at the moment.

(II) technical scheme

In order to realize the purposes of stall self-locking and sudden falling prevention of the hoisting device, the invention provides the following technical scheme: a sling cart anti-stall injury mechanism for rail hoisting comprises a fixed disc, wherein a limiting groove is formed in the fixed disc, a rotating shaft is movably connected in the fixed disc, a fixed nail is fixedly connected to the front surface of the rotating shaft, a rotating rod is fixedly connected to the outer portion of the fixed nail, a first groove is formed in the rotating rod, a first spring is fixedly connected to the bottom of the inner portion of the first groove, a sliding block is fixedly connected to one side, away from the first groove, of the first spring, a first magnet is fixedly connected to the top of the sliding block, a first positive contact is movably connected to the outer side of the first magnet, a second spring is fixedly connected to the right side of the positive contact, a first negative contact is fixedly connected to one side, away from the positive contact, of the second spring, a second negative contact is fixedly connected to the right side of the first groove, a, the inside of dwang has seted up recess two, the inside swing joint of recess two has the current variant, the inside bottom fixedly connected with spring three of recess two, one side fixedly connected with push rod of recess two is kept away from to spring three, the top fixed connection of push rod has the stopper.

Preferably, the fixed disc is internally provided with at least twenty limiting grooves, and the diameters of the limiting grooves are larger than those of the limiting heads.

Preferably, the rotating shaft is fixedly connected with a hoisting shaft of the sling cart.

Preferably, the width of the bottom of the sliding block is larger than that of the top of the sliding block, and the shortest distance from the center of the bottom of the sliding block to the positive contact is larger than the distance from the positive contact to the negative contact.

Preferably, the first magnet has an S-pole polarity under the action of the positive contact, the first magnet is arranged right below the negative contact, and the second magnet is an S-pole permanent magnet.

Preferably, the positive contact is positively charged, the negative contact I and the negative contact II are negatively charged, and the positive contact, the negative contact I and the interior of the electrorheological body are in an electrical connection relationship.

Preferably, the electrorheological fluid is solid under the condition of electrification and liquid under the condition of non-electrification, and the main materials of the electrorheological fluid are gypsum, lime and carbon powder.

(III) advantageous effects

Compared with the prior art, the invention provides a mechanism for preventing stall and injury of people for a sling cart for hoisting a rail, which has the following beneficial effects:

1. this a sling cart for rail hoist and mount prevents that stall from hindering people's mechanism, through magnet one and magnet two, the sliding block, the anodal contact, negative pole contact one, the cooperation of negative pole contact two is used, when the on-the-spot stall takes place for hoisting equipment, magnet one this moment contacts with negative pole contact two under the centrifugal force effect, thereby change magnetism and make magnet two hold magnet one, negative pole contact one and anodal contact under the effect of sliding block this moment, make the inside electric current of electrorheological body switch on, thereby reached the electrorheological body and become the effect of solid by liquid.

2. This a sling cart for rail hoist and mount prevents that stall from hindering people's mechanism uses through the cooperation of current variant and spacing head, push rod, spacing groove, fixed disk, when hoisting equipment took place the stall scene, the current variant becomes the solid by liquid this moment for the push rod drives the spacing head and moves to the spacing inslot portion, and the dwang is blocked this moment, further makes axis of rotation stall, thereby has reached the hoist device stall auto-lock, prevents the effect that falls suddenly.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a locking head structure according to the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention;

FIG. 4 is an enlarged view of the structure B of the present invention;

FIG. 5 is an enlarged view of the structure B of the present invention.

In the figure: 1. fixing the disc; 2. a limiting groove; 3. a rotating shaft; 4. fixing nails; 5. rotating the rod; 6. a first groove; 7. a first spring; 8. a slider; 9. a magnet I; 10. a positive electrode contact; 11. a second spring; 12. a negative electrode contact I; 13. a negative electrode contact II; 14. a second magnet; 51. a second groove; 52. an electrorheological fluid; 53. a third spring; 54. a push rod; 55. a limiting head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a sling cart anti-stall injury mechanism for rail lifting comprises a fixed disk 1, a limiting groove 2 is arranged inside the fixed disk 1, at least twenty limiting grooves 2 are arranged inside the fixed disk 1, a rotating shaft 3 is movably connected inside the fixed disk 1, the rotating shaft 3 is fixedly connected with a lifting shaft of the sling cart, a fixed nail 4 is fixedly connected with the front of the rotating shaft 3, a rotating rod 5 is fixedly connected with the outside of the fixed nail 4, a groove one 6 is arranged inside the rotating rod 5, a spring one 7 is fixedly connected with the bottom inside the groove one 6, a sliding block 8 is fixedly connected with one side of the spring one 7 far away from the groove one 6, a magnet one 9 is fixedly connected with the top of the sliding block 8, an anode contact 10 is movably connected with the outer side of the magnet one 9, the polarity of the magnet one 9 is the S pole under the action of the anode contact 10, and a spring two 11 is, one side of the second spring 11, which is far away from the positive contact 10, is fixedly connected with a first negative contact 12, the width of the bottom of the sliding block 8 is larger than that of the top, the shortest distance from the center of the bottom of the sliding block 8 to the positive contact 10 is larger than the distance from the positive contact 10 to the first negative contact 12, a second negative contact 13 is fixedly connected right above the groove I6, the positive contact 10 is positively charged, the first negative contact 12 and the second negative contact 13 are negatively charged, the first magnet 9 is arranged right below the second negative contact 13, the right side of the groove I6 is fixedly connected with a second magnet 14, the second magnet 14 is an S-pole permanent magnet, a second groove 51 is formed in the rotating rod 5, an electrorheological body 52 is movably connected in the groove 51, the electrorheological body 52 is solid under the condition of energization and is liquid under the condition, the electrorheological body 52 is not energized in normal operation, and the, Lime and carbon powder, the positive contact 10, the negative contact 12 and the inside of the electrorheological body 52 are in an electric connection relationship, the bottom inside the second groove 51 is fixedly connected with a third spring 53, one side, far away from the second groove 51, of the third spring 53 is fixedly connected with a push rod 54, the top of the push rod 54 is fixedly connected with a limiting head 55, the diameter of the limiting groove 2 is larger than that of the limiting head 55, and the limiting groove 2 is arranged on the outer side of the limiting head 55.

The working principle is that in the process of hoisting a rail, when a stalling phenomenon occurs in a hoisting machine, because the rotating shaft 3 is fixedly connected with a hoisting shaft of a hoisting car, the rotating shaft 3 can rotate in an overspeed mode when the stalling phenomenon occurs, because the front side of the rotating shaft 3 is fixedly connected with the fixing nail 4, the outer part of the fixing nail 4 is fixedly connected with the rotating rod 5, the rotating rod 5 also rotates in an overspeed mode at the moment, because the inner part of the rotating rod 5 is provided with the first groove 6, the inner part of the first groove 6 also rotates in an overspeed mode at the moment, because the bottom of the inner part of the first groove 6 is fixedly connected with the first spring 7, one side, far away from the first groove 6, of the first spring 7 is fixedly connected with the sliding block 8, the sliding block 8 moves in an overspeed mode at the moment, the sliding block 8 moves towards the outer side of the first groove 6, and because the top of the sliding, because the negative contact II 13 is fixedly connected right above the groove I6, the magnet I9 is right below the negative contact II 13, the groove I6 is contacted with the negative contact II 13 at the moment, because the outer side of the magnet I9 is movably connected with the positive contact 10, the polarity of the magnet I9 is S-pole under the action of the positive contact 10, the polarity of the magnet I9 is changed into N-pole under the action of a magnetic field, because the magnet II 14 is fixedly connected to the right side of the groove I6, the magnet II 14 is an S-pole permanent magnet, the magnet II 14 attracts the magnet I9, the magnet I9 drives the sliding block 8 to move upwards, because the shortest distance from the center of the bottom of the sliding block 8 to the positive contact 10 is greater than the distance from the positive contact 10 to the negative contact I12, the positive contact 10 is contacted with the negative contact I12, and because the positive contact 10 is positively charged, the first negative contact 12 is negatively charged, the positive contact 10, the first negative contact 12 and the electrorheological body 52 are electrically connected, so that the electrorheological body 52 is internally electrified, the electrorheological body 52 is solid under the condition of electrification and is liquid under the condition of non-electrification, the electrorheological body 52 is not electrified during normal operation, so that the electrorheological body 52 is changed into solid under the condition of normal operation, the electrorheological body 52 is movably connected inside the second groove 51, the third spring 53 is fixedly connected to the bottom inside the second groove 51, the push rod 54 is fixedly connected to one side, away from the second groove 51, of the third spring 53, so that the push rod 54 moves outwards, the limit head 55 is fixedly connected to the top of the push rod 54, so that the limit head 55 moves outwards, the diameter of the limit groove 2 is larger than that of the limit head 55, the limit groove 2 is arranged outside the limit head 55, no less than twenty limit grooves 2 are formed in the fixed disc 1, therefore, the limiting head 55 can move to the inside of the limiting groove 2, at the moment, the limiting head 55 cannot move, the rotating rod 5 is further stopped to rotate, and the rotating shaft 3 is further stopped to rotate, so that the stalling and self-locking effects of the hoisting device are achieved, and the sudden falling is prevented.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.