CN210528215U - Cage anti-falling system of mine elevator - Google Patents
Cage anti-falling system of mine elevator Download PDFInfo
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- CN210528215U CN210528215U CN201921497683.0U CN201921497683U CN210528215U CN 210528215 U CN210528215 U CN 210528215U CN 201921497683 U CN201921497683 U CN 201921497683U CN 210528215 U CN210528215 U CN 210528215U
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- cage
- hole
- wedge
- rod
- pin shaft
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Abstract
The utility model discloses a mining lifting machine cage anti-falling system, including vertical brake rope of laying in the mine, still include pull rod, cross arm, support body, link mechanism, arrestment mechanism and extension spring. The braking mechanism comprises a wedge box fixedly installed on the cage and two groups of wedge blocks symmetrically arranged in the wedge box. The outer end of the fork rod is connected with the two wedge blocks in a sliding fit mode respectively, and the wedge blocks are driven to move up and down under the control of the connecting rod mechanism. The utility model discloses not only utilize pull rod, link mechanism, extension spring and arrestment mechanism to realize emergency braking, can also conveniently lubricate round pin axle in the link mechanism and the rolling pearl row among the arrestment mechanism simultaneously, ensure that the braking is timely.
Description
Technical Field
The utility model relates to a prevent unexpected anti-falling device who falls of lifting machine cage.
Background
In the running process of the elevator, if an accident occurs, the lifting steel wire rope is broken or the connecting device is broken, the cage loses traction, and the cage can fall into the bottom of the well. In order to ensure the safety of personnel and prevent the lifting equipment from being damaged, a device for preventing the cage from accidentally falling needs to be provided urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mining lifting machine cage anti-falling system, its purpose: after the traction lifting device of the cage is broken, the cage is braked in time to prevent the cage from falling.
The utility model discloses technical scheme as follows:
a cage anti-falling system of a mine hoist comprises a brake rope vertically laid in a mine, a pull rod, a cross arm, a frame body, a connecting rod mechanism, a brake mechanism and an extension spring;
the pull rod is vertically arranged, a guide hole in sliding fit with the pull rod is formed in the cage, and the cross arm is fixedly connected to the lower end of the pull rod;
the support body is fixedly arranged on the cage, the top of the cross arm is in contact with the support body, and the support is arranged on the support body; the connecting rod mechanism comprises a connecting plate and a fork rod, the upper end of the connecting plate is rotatably connected with the cross arm through a pin shaft, the lower end of the connecting plate is rotatably connected with the inner end of the fork rod through a pin shaft, and the middle part of the fork rod is rotatably connected with the support through a pin shaft;
the upper end of the extension spring is connected with the frame body, the lower end of the extension spring is connected with a spring seat, and the spring seat is contacted with the fork rod; the extension spring is used for pulling the outer end of the fork rod upwards through the spring seat;
the braking mechanism comprises a wedge box fixedly arranged on the cage and two groups of wedge blocks symmetrically arranged in the wedge box; the wedge box is provided with a vertical through hole, the inner wall of the vertical through hole is provided with two first inclined planes which are oppositely arranged, the outer side surface of each wedge block is respectively provided with a second inclined plane, the two first inclined planes correspond to the two second inclined planes one by one, and a rolling ball row is respectively arranged between each first inclined plane and the corresponding second inclined plane; the brake rope penetrates through the vertical through hole and a gap between the two wedges;
the outer end of the fork rod is connected with the two wedges in a sliding fit mode respectively and used for driving the wedges to move up and down;
the hinge pin is provided with an oil filling hole along the axis, the outer end of the oil filling hole is provided with a first oil nipple, the outer circular surface of the hinge pin is further provided with an annular groove and a spiral groove intersected with the annular groove, the hinge pin is further provided with a transverse hole perpendicular to the axis of the hinge pin, the inner end of the transverse hole is communicated with the oil filling hole, and the outer end of the transverse hole is communicated with the annular groove.
As a further improvement of the system: the wedge box is provided with an oil hole corresponding to the rolling ball row in position, the oil hole is connected with a hose, and the outer end of the hose is provided with a second oil nozzle.
As a further improvement of the system: the middle part of the hose is fixed on the spring seat, and one end connected with the second oil nozzle is placed in the cage.
Compared with the prior art, the utility model discloses following positive effect has: (1) the mechanism realizes emergency braking by using a pull rod, a link mechanism, an extension spring and a braking mechanism, once a steel wire rope is broken, the outer end of a fork rod moves upwards under the action of the extension spring to push wedge blocks to move upwards, and the two wedge blocks are closed towards the middle under the action of an inclined plane to clamp a braking rope so as to prevent a cage from falling; (2) lubricating oil passages are arranged on pin shafts at each rotary connection part in the connecting rod mechanism, and lubricating oil injected through the first oil nozzle reaches the spiral groove through the oil injection hole, the transverse hole and the annular groove, so that the lubrication of the full cylindrical surface is realized; (3) the wedge box is further connected with a hose and a second oil nozzle, and the rolling ball rows are conveniently lubricated in the cage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the brake mechanism.
Fig. 3 is a schematic structural view of the pin.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
referring to fig. 1, the cage fall prevention system of the mining hoist comprises a brake rope 4 vertically laid in a mine, and further comprises a pull rod 1, a cross arm 3, a frame body 9, a link mechanism, a brake mechanism 11 and an extension spring 10.
The pull rod 1 is vertically arranged, and the upper end of the pull rod is connected with a traction steel wire rope. The cage is provided with a guide hole 2 in sliding fit with the pull rod 1, and the pull rod 1 moves up and down relative to the cage under the guide of the guide hole 2. The cross arm 3 is fixedly connected to the lower end of the pull rod 1 in a welding or threaded connection mode.
As shown in fig. 3, an oil filling hole 100-4 is formed in the pin 100 along the axis, a first oil nipple 101 is installed at the outer end of the oil filling hole 100-4, an annular groove 100-2 and a spiral groove 100-1 intersecting with the annular groove 100-2 are further formed in the outer circumferential surface of the pin 100, a transverse hole 100-3 perpendicular to the axis of the pin 100 is further formed in the pin 100, the inner end of the transverse hole 100-3 is communicated with the oil filling hole 100-4, and the outer end of the transverse hole is communicated with the annular groove 100-2. Lubricating oil injected through the first oil nozzle 101 can reach the spiral groove 100-1 through the oil injection hole 100-4, the transverse hole 100-3 and the annular groove 100-2, so that the lubrication of the full cylindrical surface is realized, and the condition that the connecting rod mechanism cannot brake in time or influence the normal operation of the cage due to jamming and incapability of acting is avoided.
As shown in fig. 1, the upper end of the extension spring 10 is connected with the frame body 9, the lower end of the extension spring is connected with a spring seat 8, and the spring seat 8 is in contact with the fork rod 6; the extension spring 10 serves to pull the outer end of the fork 6 upwards via the spring seat 8.
As shown in FIG. 2, the brake mechanism 11 comprises a wedge box 11-1 fixedly installed on the cage through screws, and also comprises two groups of wedges 11-3 symmetrically arranged in the wedge box 11-1; the wedge box 11-1 is provided with a vertical through hole, the inner wall of the vertical through hole is provided with two first inclined planes which are oppositely arranged, the outer side surface of each wedge block 11-3 is respectively provided with a second inclined plane, the two first inclined planes correspond to the two second inclined planes one by one, and a rolling ball row 11-2 is respectively arranged between each first inclined plane and the corresponding second inclined plane; the retainer of the rolling ball row 11-2 is movably arranged in the wedge box 11-1. The brake cable 4 passes through the vertical through hole and the gap between the two wedges 11-3.
The wedge box 11-1 is provided with an oil hole corresponding to the rolling ball row 11-2 in position, the oil hole is connected with a hose 11-4, and the outer end of the hose 11-4 is provided with a second oil nozzle 11-5. The middle of the hose 11-4 is fixed on the spring seat 8, and one end connected with the second oil nozzle 11-5 is placed in the cage, so that the rolling ball row 11-2 is conveniently lubricated in the cage, and the situation that the wedge block 11-3 is blocked due to movement, and the brake rope 4 cannot be clamped in time is prevented.
The outer end of the fork rod 6 is connected with two wedges 11-3 in a sliding fit mode respectively and used for driving the wedges 11-3 to move up and down.
In this embodiment, the link mechanism, the extension spring 10, the spring seat 8, the brake rope 4, and the brake mechanism 11 are two sets and are symmetrically arranged. The pull rod 1 drives two groups of link mechanisms to act simultaneously through the cross arm 3.
As shown in fig. 1 and 2, when the cage normally operates, the steel wire rope pulls the pull rod 1, and the traction force is transmitted to the cage through the pull rod 1, the cross arm 3 and the frame body 9 to drive the cage to move. Meanwhile, the cross arm 3 pulls the fork rod 6 through the connecting plate 5, so that the wedge blocks 11-3 and the inclined plane in the wedge box 11-1 keep a certain distance, and the two wedge blocks 11-3 are in an open state and cannot rub against the brake rope 4. Once the steel wire rope is broken, the outer end of the fork rod 6 moves upwards under the action of the extension spring 10 to push the wedge blocks 11-3 to move upwards, and the two wedge blocks 11-3 are closed towards the middle under the action of the inclined surface to clamp the brake rope 4, so that the cage is prevented from falling.
Claims (3)
1. The utility model provides a mining lifting machine cage anti-falling system which characterized in that: the mine braking device comprises a braking rope (4) vertically laid in a mine, and further comprises a pull rod (1), a cross arm (3), a frame body (9), a connecting rod mechanism, a braking mechanism (11) and an extension spring (10);
the pull rod (1) is vertically arranged, a guide hole (2) in sliding fit with the pull rod (1) is formed in the cage, and the cross arm (3) is fixedly connected to the lower end of the pull rod (1);
the support body (9) is fixedly arranged on the cage, the top of the cross arm (3) is in contact with the support body (9), and the support seat (7) is arranged on the support body (9); the connecting rod mechanism comprises a connecting plate (5) and a fork rod (6), the upper end of the connecting plate (5) is rotatably connected with the cross arm (3) through a pin shaft (100), the lower end of the connecting plate is rotatably connected with the inner end of the fork rod (6) through the pin shaft (100), and the middle part of the fork rod (6) is rotatably connected with the support (7) through the pin shaft (100);
the upper end of the extension spring (10) is connected with the frame body (9), the lower end of the extension spring is connected with a spring seat (8), and the spring seat (8) is in contact with the fork rod (6); the extension spring (10) is used for pulling the outer end of the fork rod (6) upwards through the spring seat (8);
the braking mechanism (11) comprises a wedge box (11-1) fixedly arranged on the cage and also comprises two groups of wedge blocks (11-3) symmetrically arranged in the wedge box (11-1); the wedge box (11-1) is provided with a vertical through hole, the inner wall of the vertical through hole is provided with two first inclined planes which are oppositely arranged, the outer side surface of each wedge block (11-3) is respectively provided with a second inclined plane, the two first inclined planes correspond to the two second inclined planes one by one, and a rolling ball row (11-2) is respectively arranged between each first inclined plane and the corresponding second inclined plane; the brake rope (4) passes through the vertical through hole and a gap between the two wedges (11-3);
the outer end of the fork rod (6) is connected with two wedges (11-3) in a sliding fit mode respectively and used for driving the wedges (11-3) to move up and down;
the oil filling device is characterized in that an oil filling hole (100-4) is formed in the pin shaft (100) along the axis, a first oil nozzle (101) is installed at the outer end of the oil filling hole (100-4), an annular groove (100-2) and a spiral groove (100-1) intersected with the annular groove (100-2) are further formed in the outer circular surface of the pin shaft (100), a transverse hole (100-3) perpendicular to the axis of the pin shaft (100) is further formed in the pin shaft (100), the inner end of the transverse hole (100-3) is communicated with the oil filling hole (100-4), and the outer end of the transverse hole is communicated with the annular groove (100-2).
2. The mining hoist cage fall arrest system of claim 1, wherein: the wedge box (11-1) is provided with an oil hole corresponding to the rolling ball row (11-2), the oil hole is connected with a hose (11-4), and the outer end of the hose (11-4) is provided with a second oil nozzle (11-5).
3. The mining hoist cage fall arrest system of claim 2, wherein: the middle part of the hose (11-4) is fixed on the spring seat (8), and one end connected with the second oil nozzle (11-5) is placed in the cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921497683.0U CN210528215U (en) | 2019-09-10 | 2019-09-10 | Cage anti-falling system of mine elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921497683.0U CN210528215U (en) | 2019-09-10 | 2019-09-10 | Cage anti-falling system of mine elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210528215U true CN210528215U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921497683.0U Expired - Fee Related CN210528215U (en) | 2019-09-10 | 2019-09-10 | Cage anti-falling system of mine elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210528215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959558A (en) * | 2020-07-23 | 2020-11-20 | 中国煤炭科工集团太原研究院有限公司 | Rope-breaking rail-holding braking protection device for coal mine underground ferry vehicle |
-
2019
- 2019-09-10 CN CN201921497683.0U patent/CN210528215U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111959558A (en) * | 2020-07-23 | 2020-11-20 | 中国煤炭科工集团太原研究院有限公司 | Rope-breaking rail-holding braking protection device for coal mine underground ferry vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200515 Termination date: 20210910 |