CN212687279U - Vertical shaft falling protector - Google Patents
Vertical shaft falling protector Download PDFInfo
- Publication number
- CN212687279U CN212687279U CN202020870673.3U CN202020870673U CN212687279U CN 212687279 U CN212687279 U CN 212687279U CN 202020870673 U CN202020870673 U CN 202020870673U CN 212687279 U CN212687279 U CN 212687279U
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- wire rope
- rope
- steel wire
- rod
- rack
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- 230000001012 protector Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 238000005452 bending Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of falling protectors for mine hoists, and discloses a vertical shaft falling protector which comprises a frame, a rope roller and a steel wire rope, wherein the frame is arranged right above a lifting bucket, two ends of the rope roller are rotationally connected with the frame, one end of the steel wire rope is fixedly connected with the rope roller and wound on the surface of the rope roller, and the other end of the steel wire rope is fixedly connected with the lifting bucket; the surface of the rope roller is provided with a limiting groove, a limiting rod is rotatably connected to the rack, one end of the limiting rod is abutted against the groove wall of the limiting groove, and the steel wire rope is abutted against one end of the limiting rod, which is far away from the limiting groove; the frame is provided with a driving piece for driving the rope roller to rotate. Through setting up frame, rope roller, wire rope, gag lever post, spacing groove and driving piece to make things convenient for the staff to promote the bucket, and then improve staff's work efficiency.
Description
Technical Field
The utility model belongs to the technical field of the technique of safety hook for mine hoist and specifically relates to a vertical falling protector is related to.
Background
Mine hoist systems generally consist of a bucket, a wire rope, a hoist, a guide rope, and a safety catch. The safety device is used for preventing the cage from falling when the lifting steel wire rope is broken.
In the prior art, for example, chinese utility model patent with publication number CN2873719Y discloses a speed-limiting safety hook, which comprises a wedge, a passive extrusion body, a guide rope, a main pulley and an auxiliary pulley which are respectively mounted on both sides of the guide rope and used for clamping the guide rope, a cam which forms an overdrive clutch with the main pulley is coaxially mounted on the main pulley, a horizontal jack is arranged on the lower end of the passive extrusion body, the outer end of the jack is hinged with a support arm, the inner end of the jack is matched with a clamping groove on the wedge, the lower end of the support arm is fixed with a rotating shaft, the upper end of the support arm is movably matched with the cam, the wedge is mounted between the guide rope and the passive extrusion body through a compression spring, and a handle.
When the speed of the bucket exceeds the set speed, the cam pushes the support arm, the jack is pulled out by the support arm, the wedge iron in the standby state is pushed by the compression spring to move upwards along the passive extrusion lifting slope, and the bucket and the guide rope are clamped, so that the effect of limiting the motion of the bucket is achieved. When the lifting bucket is released, the lifting bucket needs to go upwards, the handle is pulled downwards, the wedge iron compresses the spring, the inner end of the jack is clamped with the clamping groove on the wedge iron, and the normal lifting state is recovered.
The above prior art solutions have the following drawbacks: when carrying out the unblock to the safety hook, need the staff to promote the bucket for the bucket rises, then pulls the handle downwards again, makes the draw-in groove joint on very heavy and the drift, when not having the good lifting machine of maintenance, needs the staff manual to promote the bucket, thereby has caused staff's work inconvenient nature, and then has reduced staff's work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical falling protector for the staff is convenient to be promoted the bucket, and then improves staff's work efficiency.
The utility model aims at realizing through the following technical scheme:
a vertical shaft falling protector comprises a rack, a rope roller and a steel wire rope, wherein the rack is arranged right above a bucket, two ends of the rope roller are rotatably connected with the rack, one end of the steel wire rope is fixedly connected with the rope roller and wound on the surface of the rope roller, and the other end of the steel wire rope is fixedly connected with the bucket; the surface of the rope roller is provided with a limiting groove, a limiting rod is rotatably connected to the rack, one end of the limiting rod is abutted against the groove wall of the limiting groove, and the steel wire rope is abutted against one end of the limiting rod, which is far away from the limiting groove; and a driving piece for driving the rope roller to rotate is arranged on the rack.
Through adopting above-mentioned technical scheme, after the wire rope fracture of lifting machine, the cell wall butt of gag lever post and spacing groove for wire rope on the safety hook carries out the tensioning and applys the pulling force to the dipper, make wire rope with the position that the dipper restriction was in when lifting machine wire rope fracture, when needs continue to lift the dipper upwards, the drive driving piece, make the rope roller carry out the rolling to wire rope, and then make wire rope promote the dipper, thereby make things convenient for the staff to promote the dipper, and then improve staff's work efficiency.
The present invention may be further configured in a preferred embodiment as: the limiting groove is spiral, a first locating rod is fixedly arranged on the rack, and the limiting rod is sleeved with the first locating rod.
Through adopting above-mentioned technical scheme, in the cracked moment of wire rope on the lifting machine, the gag lever post takes place relative slip with the spacing groove for under the action of gravity of dipper, the gag lever post supports tightly with the spacing groove, and then makes the cell wall butt of gag lever post and spacing groove, reduces the impact force of dipper to the safety hook, and then increases the stability of safety hook during operation.
The present invention may be further configured in a preferred embodiment as: one end of the limiting rod, which is far away from the limiting groove, extends and bends towards one side where the steel wire rope is located and forms a first bending surface.
Through adopting above-mentioned technical scheme, the one end butt of spacing groove is kept away from with the gag lever post to wire rope on the safety hook, and first crooked face makes wire rope stop on the gag lever post, and then guarantees the steady operation of safety hook.
The present invention may be further configured in a preferred embodiment as: one end of the limiting rod, which is far away from the limiting groove, is bent towards one side departing from the steel wire rope and forms a second bending surface.
Through adopting above-mentioned technical scheme, when wire rope and the one end that the gag lever post kept away from the spacing groove took place relative rotation, the second crooked face played the effect of direction to wire rope, and then makeed the frictional force that reduces between gag lever post and the wire rope, increased safety hook's life.
The present invention may be further configured in a preferred embodiment as: a second positioning rod is arranged on the rack and is arranged above the first positioning rod; the second positioning rod is coaxially connected with a belt pulley in a sliding mode along the length direction of the second positioning rod, and the steel wire rope is abutted to the belt pulley.
Through adopting above-mentioned technical scheme, when gag lever post and spacing groove take place relative slip, relative slip takes place for gag lever post and first locating lever, and then makes wire rope follow the gag lever post and remove, and then makes belt pulley and second locating lever take place relative slip, and then increases the stability of safety hook during operation.
The present invention may be further configured in a preferred embodiment as: the two sides of the belt pulley are provided with sliding grooves around the circle center of the belt pulley, and clamping blocks are connected with the two sliding grooves in a sliding mode.
Through adopting above-mentioned technical scheme, when belt pulley and second locating lever take place relative slip, wire rope and fixture block butt, and then make wire rope stop in the belt pulley, when wire rope and belt pulley take place relative rotation, relative slip takes place for fixture block and belt pulley, and then make the belt pulley follow wire rope and move, and then make the pulley lead to wire rope.
The present invention may be further configured in a preferred embodiment as: the rope roller is coaxially sleeved with a coil spring, the outer end of the coil spring is fixedly connected with the rack, and the inner end of the coil spring is fixedly connected with the rope roller.
By adopting the technical scheme, when the elevator lifts the lifting bucket, the rope roller rotates under the action of the first torsion spring, so that the rope roller winds the steel wire rope, the steel wire rope on the falling protector is always kept in a tensioned state, and accordingly preparation work is carried out.
The present invention may be further configured in a preferred embodiment as: the first locating rod is coaxially sleeved with a torsion spring, one end of the torsion spring is connected with the limiting rod in a clamping mode, and the other end of the torsion spring is connected with the first locating rod in a sliding mode.
Through adopting above-mentioned technical scheme, when the lifting machine normally worked, the torsional spring on the first locating lever acted on the gag lever post to make the gag lever post be close to the one end and the spacing groove separation of spacing groove, and then guarantee the normal rotation of rope roller, and then make the rope roller carry out normal rolling to wire rope.
To sum up, the utility model discloses a following at least one useful technological effect:
1. by arranging the rack, the rope roller, the steel wire rope, the limiting rod, the limiting groove and the driving piece, after the steel wire rope of the elevator is broken, the limiting rod is abutted against the groove wall of the limiting groove, so that the steel wire rope on the anti-falling device is tensioned to apply tension to the lifting bucket, the lifting bucket is limited by the steel wire rope at the position of the broken steel wire rope of the elevator, when the lifting bucket needs to be lifted upwards continuously, the driving piece is driven, the rope roller is enabled to roll the steel wire rope, the lifting bucket is lifted by the steel wire rope, and therefore workers can lift the lifting bucket conveniently, and the working efficiency of the workers is improved;
2. by arranging the spiral limiting groove and the first locating rod, the limiting rod and the limiting groove slide relatively at the moment of breakage of a steel wire rope on the elevator, the limiting rod is tightly abutted against the limiting groove under the action of gravity of the bucket, and then the limiting rod is abutted against the groove wall of the limiting groove, so that the impact force of the bucket on the falling protector is reduced, and the stability of the falling protector during working is further improved;
3. through setting up first crooked face, the one end butt of spacing groove is kept away from with the gag lever post to wire rope on the safety hook, and first crooked face makes wire rope stop on the gag lever post, and then guarantees the steady operation of safety hook.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is another schematic view of the present invention, primarily illustrating the torsion spring;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B in fig. 1.
Reference numeral, 100, a frame; 110. a limiting rod; 111. a first curved surface; 112. a second curved surface; 120. a first positioning rod; 121. a first chute; 122. a torsion spring; 130. a second positioning rod; 131. a belt pulley; 132. a chute; 133. a clamping block; 140. a rotating drum; 200. a rope roller; 210. a limiting groove; 220. a coil spring; 300. a wire rope; 400. a drive member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the vertical shaft falling protector comprises a rack 100, a rope roller 200 and a steel wire rope 300, wherein the rack 100 is fixedly connected right above a vertical shaft wellhead through a bolt pair, two ends of the rope roller 200 are rotatably connected with the rack 100, one end of the steel wire rope 300 is fixedly connected with the rope roller 200 through screws and wound on the surface of the rope roller 200, and the other end of the steel wire rope 300 is fixedly connected with a lifting bucket through a hoop. The surface of the rope roller 200 is provided with a limiting groove 210, the rack 100 is rotatably connected with a limiting rod 110, one end of the limiting rod 110 is abutted against the groove wall of the limiting groove 210, and the steel wire rope 300 is abutted against one end of the limiting rod 110 far away from the limiting groove 210. The frame 100 is provided with a driving member 400 for driving the rope roller 200 to rotate, the driving member 400 is a driving motor, and an output shaft of the driving motor is welded with the rope roller 200.
Referring to fig. 2 and 3, in order to increase the working stability of the safety hook, the limiting groove 210 is spiral, the first positioning rod 120 is fixedly welded to the frame 100, and the limiting rod 110 is sleeved with the first positioning rod 120 and can slide. The rope roller 200 is coaxially sleeved with a coil spring 220, the outer end of the coil spring 220 is fixedly connected with the rack 100 through a rotary drum 140, the rotary drum 140 is welded with the rack 100, and the inner end of the coil spring 220 is welded with the rope roller 200. The first positioning rod 120 is coaxially sleeved with a torsion spring 122, a first sliding groove 121 is formed in one end of the first positioning rod 120 corresponding to the torsion spring 122 along the length direction of the first positioning rod 120, one end of the torsion spring 122 is slidably connected with the first sliding groove 121, and the other end of the torsion spring 122 is connected with the limiting rod 110 in a clamping manner.
In order to limit the cable 300 on the fall arrester, one end of the limiting rod 110 away from the limiting groove 210 is bent towards the side where the cable 300 is located and forms a first bending surface 111. One end of the limiting rod 110 far away from the limiting groove 210 is bent towards the side far away from the steel wire rope 300 and forms a second bending surface 112. A second positioning rod 130 is welded to the frame 100, and the second positioning rod 130 is disposed above the first positioning rod 120. A pulley 131 (see fig. 4) is coaxially slidably connected to the second positioning rod 130 in the longitudinal direction thereof, and the wire rope 300 abuts against the pulley 131. The two sides of the belt pulley 131 are both provided with sliding grooves 132 around the center of the circle, and the two sliding grooves 132 are slidably connected with clamping blocks 133.
The implementation principle of the embodiment is as follows: when the falling protector is used for preventing falling of the elevator, the steel wire rope 300 for preventing falling is fixedly connected with the bucket, and when the steel wire rope on the elevator is broken, the steel wire rope 300 on the falling protector acts on the bucket. At the moment that the bucket falls, the bucket exerts force on the steel wire rope 300, so that the steel wire rope 300 is tightened, and the limiting rod 110 is under the action of the steel wire rope 300, so that one end, close to the limiting groove 210, of the limiting rod 110 is tightly abutted to the limiting groove 210, so that the friction force between the rope roller 200 and the limiting rod 110 is increased, and the rope roller 200 is enabled to decelerate and buffer the bucket. After the stop lever 110 abuts against the bottom of the stop groove 210, the movement of the rope roller 200 is restricted, and the bucket stays at a certain position in the shaft. When the bucket needs to be lifted continuously, the driving motor is driven, and then the steel wire rope 300 is wound by the rope roller 200, so that the bucket is lifted.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a vertical falling protector which characterized in that: the lifting bucket comprises a rack (100), a rope roller (200) and a steel wire rope (300), wherein the rack (100) is arranged right above a lifting bucket, two ends of the rope roller (200) are rotatably connected with the rack (100), one end of the steel wire rope (300) is fixedly connected with the rope roller (200) and wound on the surface of the rope roller (200), and the other end of the steel wire rope (300) is fixedly connected with the lifting bucket; the surface of the rope roller (200) is provided with a limiting groove (210), the rack (100) is rotatably connected with a limiting rod (110), one end of the limiting rod (110) is abutted against the groove wall of the limiting groove (210), and the steel wire rope (300) is abutted against one end of the limiting rod (110) far away from the limiting groove (210); and a driving piece (400) for driving the rope roller (200) to rotate is arranged on the rack (100).
2. A vertical fall arrester as claimed in claim 1, wherein: the limiting groove (210) is spiral, a first locating rod (120) is fixedly arranged on the rack (100), and the limiting rod (110) is sleeved with the first locating rod (120).
3. A vertical fall arrester as claimed in claim 2, wherein: one end, far away from the limiting groove (210), of the limiting rod (110) extends and bends towards one side where the steel wire rope (300) is located and forms a first bending surface (111).
4. A vertical fall arrester as claimed in claim 3, wherein: one end, far away from the limiting groove (210), of the limiting rod (110) is bent towards one side, far away from the steel wire rope (300), and a second bending surface (112) is formed.
5. A vertical fall arrester as claimed in claim 4, wherein: a second positioning rod (130) is arranged on the rack (100), and the second positioning rod (130) is arranged above the first positioning rod (120); the second positioning rod (130) is coaxially connected with a belt pulley (131) in a sliding mode along the length direction of the second positioning rod, and the steel wire rope (300) is abutted to the belt pulley (131).
6. A vertical fall arrester as claimed in claim 5, wherein: the two sides of the belt pulley (131) are respectively provided with a sliding groove (132) around the circle center, and a clamping block (133) is connected with the two sliding grooves (132) in a sliding manner.
7. A vertical fall arrester as claimed in claim 1, wherein: the rope roller (200) is coaxially sleeved with a coil spring (220), the outer end of the coil spring (220) is fixedly connected with the rack (100), and the inner end of the coil spring (220) is fixedly connected with the rope roller (200).
8. A vertical fall arrester as claimed in claim 2, wherein: the first locating rod (120) is coaxially sleeved with a torsion spring (122), one end of the torsion spring (122) is connected with the limiting rod (110) in a clamping mode, and the other end of the torsion spring (122) is connected with the first locating rod (120) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870673.3U CN212687279U (en) | 2020-05-21 | 2020-05-21 | Vertical shaft falling protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870673.3U CN212687279U (en) | 2020-05-21 | 2020-05-21 | Vertical shaft falling protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212687279U true CN212687279U (en) | 2021-03-12 |
Family
ID=74887694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020870673.3U Active CN212687279U (en) | 2020-05-21 | 2020-05-21 | Vertical shaft falling protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212687279U (en) |
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2020
- 2020-05-21 CN CN202020870673.3U patent/CN212687279U/en active Active
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