Inclined shaft car catching device

Abstract

The utility model discloses an inclined shaft car catching device, including the lifting frame and be used for lifting the first steel wire rope of lifting frame, still include support, telescopic cylinder, baffle, angle steel stand and second steel wire rope. Lifting frame is walked up and down along angle steel stand through gyro wheel. The cylinder body of telescopic cylinder is fixed on the support, and its piston rod end installs the movable pulley, still is installed with the trolley wheel between located telescopic cylinder and lifting frame on the support. One end of first steel wire rope is fixedly connected with the support, and the other end is fixedly connected with lifting frame after passing movable pulley and trolley wheel in proper order. The utility model discloses using telescopic cylinder, trolley wheel and movable pulley cooperation, and the actual moving speed of lifting frame is two times of telescopic cylinder speed, and has improved work efficiency, and still has little impact and other advantages.

Description

Technical Field

[0001] This utility model belongs to the field of mining equipment technology, specifically relating to an inclined shaft trapping device. Background Technology

[0002] The inclined shaft car interceptor is a safety protection device used in inclined shaft hoisting and transportation systems. It is mainly applicable to single-rail or double-rail inclined shafts with an inclination angle of less than 30 degrees in coal mines, metal mines, and non-metal mines. When a mine car runs away in the inclined shaft (such as derailment or loss of control), this device can intercept the out-of-control mine car in time, effectively preventing the accident from escalating and ensuring transportation safety.

[0003] Existing mine car catchers typically use steel wire ropes to control the raising and lowering of a rotating mesh or frame structure. When the structure is lowered, it blocks the mine car; when it is raised, the car can pass normally. For example, Chinese utility model patent CN204623474U discloses a manual mine car catcher, which includes a crossbeam fixed by anchor bolts to a top plate directly above the track, a right-angled U-shaped frame hinged to the crossbeam at its top, several steel pipes horizontally connected and fixed to the frame from top to bottom, and steel wire ropes threaded inside the steel pipes. However, in actual use, this solution has the following drawbacks: First, the raising and lowering of the frame requires manual cranking of pulleys, resulting in low operational efficiency. Although the pulleys can be driven by a motor, due to the limited diameter of the pulleys, even after modification, prolonged rotation is still required to achieve raising and lowering. Second, the frame and steel pipes are rigidly connected as a single unit, resulting in a small contact area and strong impact upon collision, easily causing bending and breakage of the steel pipes, leading to a short service life. Utility Model Content

[0004] This utility model proposes an inclined shaft capture vehicle device, the purpose of which is to solve the problems of low launching and retrieval efficiency and easy damage to the rigid integrated frame.

[0005] The technical solution of this utility model is as follows:

[0006] A sloping shaft catching vehicle device includes a lifting frame and a first steel wire rope for lifting the lifting frame, and also includes a support, a telescopic cylinder, a baffle plate, an angle steel column and a second steel wire rope;

[0007] The angle steel columns are in two sets, left and right, and are fixedly installed perpendicular to the ground of the inclined shaft; the left and right sides of the lifting frame are equipped with rollers that cooperate with the angle steel columns.

[0008] The bracket is installed at the top of the inclined shaft; the cylinder body of the telescopic cylinder is fixed on the bracket, and a movable pulley is installed at the end of the piston rod; a fixed pulley is also installed on the bracket between the telescopic cylinder and the lifting frame; one end of the first wire rope is fixedly connected to the bracket, and the other end passes through the movable pulley and the fixed pulley in sequence before being fixedly connected to the lifting frame.

[0009] The lifting frame is inverted U-shaped, including a crossbeam and two sets of square tube columns on the left and right, with the upper end of the square tube columns fixedly connected to the end of the crossbeam.

[0010] A circular shaft parallel to the crossbeam is installed on the lifting frame, and the two ends of the circular shaft are fixedly connected to the square tubular columns on both sides.

[0011] The baffles are arranged vertically and in multiple sets arranged left and right. The upper end of each baffle is rotatably connected to the circular shaft through a clearance fit.

[0012] The second wire rope consists of two or more sets, and each blocking plate has a rope-passing hole corresponding to the second wire rope; the second wire rope passes through the rope-passing hole on each blocking plate in sequence, and its end is connected to the square tube column on the corresponding side.

[0013] As a further improvement to the inclined shaft catching vehicle device: the roller includes rolling bearings, bolts, and stepped sleeves;

[0014] The stepped sleeve is installed on the outer ring of the rolling bearing, and the bolt passes through the inner ring of the rolling bearing and is connected to the nut welded to the outer wall of the square tube column.

[0015] The shoulder of the stepped sleeve fits into the edge of the angle steel column.

[0016] As a further improvement to the inclined shaft capture vehicle device, a washer is also provided between the inner ring of the rolling bearing and the nut to leave a gap between the outer ring of the rolling bearing and the square pipe column.

[0017] As a further improvement to the inclined shaft trap device: a threaded hole is provided on the stepped sleeve, and a locking screw is installed in the threaded hole, with the inner end of the locking screw contacting the outer ring of the rolling bearing.

[0018] As a further improvement to the inclined shaft trap device: the end of the round shaft is provided with a threaded hole, and the square pipe is fixedly connected to the round shaft by a mounting screw that passes through a through hole in its inner wall and connects to the threaded hole.

[0019] As a further improvement to the inclined shaft trapping device, the circular shaft is also fitted with an isolation sleeve located between adjacent baffles and between the outermost baffle and the square pipe column.

[0020] As a further improvement to the inclined shaft capture vehicle device, the isolation sleeve is a polyurethane sleeve.

[0021] As a further improvement to the inclined shaft capture vehicle device, the telescopic cylinder is a hydraulic cylinder.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. This utility model uses a telescopic cylinder, a fixed pulley, and a movable pulley in cooperation to control the up and down movement of the lifting frame. The telescopic cylinder (especially the hydraulic cylinder) itself has the advantage of fast telescopic speed. At the same time, due to the use of the movable pulley structure, the actual moving speed of the lifting frame is twice the speed of the telescopic cylinder, which further improves the work efficiency and reduces the stroke requirements of the telescopic cylinder. It has the advantages of convenient selection and low cost.

[0024] 2. The blocking plates of this utility model are independent of each other and are rotatably connected to the round shaft. When blocking a mine car, multiple blocking plates contact the mine car simultaneously, resulting in a large contact area, small impact, and each blocking plate has a certain amount of room to move, making it less prone to damage.

[0025] 3. This utility model uses a polyurethane sleeve to ensure that there is a suitable gap between the blocking plates, preventing the blocking plates from moving freely and ensuring that the mine car is subjected to uniform force when blocking. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0028] Figure 3 This is a structural diagram of the angle steel column, lifting frame, and baffle plate.

[0029] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0030] Figure 5 for Figure 3 A magnified view of part C in the middle;

[0031] Figure 6 for Figure 3 A magnified view of part D in the middle.

[0032] Figure label:

[0033] 1. Support frame; 2. Telescopic cylinder; 3. First wire rope; 4. Lifting frame; 4-1. Crossbeam; 4-2. Square tube column; 5. Baffle plate; 5-1. Rope threading hole; 6. Moving pulley; 7. Fixed pulley; 8. Angle steel column; 9. Second wire rope; 10. Roller; 10-1. Step sleeve; 10-2. Rolling bearing; 10-3. Locking screw; 10-4. Bolt; 10-5. Nut; 11. Mounting screw; 12. Round shaft; 13. Polyurethane sleeve; 14. U-shaped clamp; 15. Lifting ring. Detailed Implementation

[0034] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0035] like Figure 1 and Figure 3 A sloping shaft catching vehicle device includes a lifting frame 4 and a first steel wire rope 3 for lifting the lifting frame 4, and also includes a support 1, a telescopic cylinder 2, a baffle plate 5, an angle steel column 8, and a second steel wire rope 9.

[0036] like Figure 1 and Figure 2 The support 1 is installed at the top of the inclined shaft via anchor bolts. The cylinder body of the telescopic cylinder 2 is fixed to the support 1, and a movable pulley 6 is mounted on the end of its piston rod via a wheel bracket. The telescopic cylinder 2 is a hydraulic cylinder, but an electric push rod with a faster telescopic speed can also be used. A fixed pulley 7 is also installed on the support 1, located between the telescopic cylinder 2 and the lifting frame 4. The fixed pulley 7 should be as close to the lifting frame 4 as possible. One end of the first wire rope 3 is fixedly connected to the support 1, and the other end passes through the movable pulley 6 and the fixed pulley 7 in sequence before being fixedly connected to the lifting frame 4. When the length of the telescopic cylinder 2 changes by X, the movement of the other end of the first wire rope 3 is 2X, thereby significantly increasing the moving speed of the lifting frame 4.

[0037] like Figure 3 The angle steel columns 8 are arranged in two sets, left and right, and are fixed to the ground perpendicular to the inclined shaft, and anchored to the two side walls by anchor bolts. The two angle steel columns 8 are arranged opposite each other, with one inner angle facing the upper end of the inclined shaft. The lifting frame 4 is inverted U-shaped, including a crossbeam 4-1 and two sets of square tube columns 4-2 on the left and right, with the upper end of the square tube column 4-2 fixedly connected to the end of the crossbeam 4-1. The left and right sides of the lifting frame 4 are provided with rollers 10 that cooperate with the angle steel columns 8. The angle steel columns 8 are inclined relative to the horizontal plane, so the rollers 10 always maintain contact with the angle steel columns 8 under the action of gravity.

[0038] Furthermore, such as Figure 4 The roller 10 includes a rolling bearing 10-2, a bolt 10-4, and a stepped sleeve 10-1. The stepped sleeve 10-1 can be made of polyurethane or steel, with an outer diameter smaller than its inner diameter, forming a shoulder. The stepped sleeve 10-1 is mounted on the outer ring of the rolling bearing 10-2. A threaded hole is provided on the stepped sleeve 10-1, in which a locking screw 10-3 is installed. The inner end of the locking screw 10-3 contacts the outer ring of the rolling bearing 10-2, fixing the stepped sleeve 10-1 to the rolling bearing 10-2. The shoulder of the stepped sleeve 10-1 is used to mate with the edge of the angle steel column 8, allowing for relative rolling while also limiting the lateral position of the lifting frame 4 to prevent it from detaching from the angle steel column 8.

[0039] The bolt 10-4 passes through the inner ring of the rolling bearing 10-2 and connects to the nut 10-5 welded to the outer wall of the square tube column 4-2, thereby fixing the roller 10 to the lifting frame 4. It should be noted that an operating hole is also provided on the inner wall of the square tube column 4-2 to facilitate welding of the nut 10-5.

[0040] Furthermore, a washer is provided between the inner ring of the rolling bearing 10-2 and the nut 10-5 to leave a gap between the outer ring of the rolling bearing 10-2 and the square tube column 4-2.

[0041] Furthermore, such as Figure 3 and Figure 5 A circular shaft 12 parallel to the crossbeam 4-1 is installed on the lifting frame 4. A threaded hole is provided at the end of the circular shaft 12. The square tube column 4-2 is fixedly connected to the circular shaft 12 by a mounting screw 11 that passes through a through hole in its inner wall and connects to the threaded hole. An operating hole corresponding to the through hole is provided on the outer wall of the square tube column 4-2 for installing and removing the mounting screw 11.

[0042] The baffles 5 are arranged vertically and in multiple groups, with the upper end of each baffle 5 rotatably connected to the circular shaft 12 through a clearance fit. The circular shaft 12 is also fitted with isolation sleeves located between adjacent baffles 5 and between the outermost baffle 5 and the square tube column 4-2. The isolation sleeves are preferably polyurethane sleeves 13, used to limit the left and right positions of all baffles 5.

[0043] like Figure 3 and Figure 6 The second steel wire rope 9 consists of three sets, and each blocking plate 5 has a rope-passing hole 5-1 corresponding to the second steel wire rope 9. The second steel wire rope 9 passes through the rope-passing hole 5-1 on each blocking plate 5 in sequence, and its end is connected to the square tube column 4-2 on the corresponding side.

[0044] In this embodiment, the method of fixing the end of the wire rope to other components is as follows: a lifting ring 15 is installed on the component to which the wire rope is to be connected by means of threaded connection or welding. The end of the wire rope passes through the lifting ring 15 and then folds back. Then, a U-shaped clip 14 is used to fix the two wire ropes together.

[0045] During operation, the hydraulic cylinders are controlled to extend and retract, causing the lifting frame 4 to move up and down along the angle steel column 8. After the lifting frame 4 descends, if a mine car goes out of control, it will collide with each of the blocking plates 5. Since each blocking plate 5 can rotate, it can automatically rotate according to the impact, causing more blocking plates 5 to participate in stopping the car, until the connected second steel wire rope 9 is tightened and the mine car is stopped. When the lifting frame 4 rises, the mine car can pass normally.

[0046] It should be noted that, as will be apparent to those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. The scope of this utility model is defined by the claims rather than the foregoing description.

Claims

1. An inclined shaft car catching device comprising a lifting carriage (4) and a first wire rope (3) for lifting the lifting carriage (4), characterized in that: It also includes a bracket (1), a telescopic cylinder (2), a baffle plate (5), an angle steel column (8), and a second steel wire rope (9); The angle steel columns (8) are in two sets, left and right, and are fixedly installed perpendicular to the ground of the inclined shaft; the lifting frame (4) is provided with rollers (10) on the left and right sides that cooperate with the angle steel columns (8). The bracket (1) is installed at the top of the inclined shaft; the cylinder body of the telescopic cylinder (2) is fixed on the bracket (1), and a movable pulley (6) is installed at the end of the piston rod; a fixed pulley (7) is also installed on the bracket (1) between the telescopic cylinder (2) and the lifting frame (4); one end of the first wire rope (3) is fixedly connected to the bracket (1), and the other end passes through the movable pulley (6) and the fixed pulley (7) in sequence before being fixedly connected to the lifting frame (4); The lifting frame (4) is inverted U-shaped, including a crossbeam (4-1) and two sets of square columns (4-2) on the left and right. The upper end of the square column (4-2) is fixedly connected to the end of the crossbeam (4-1). A circular shaft (12) parallel to the crossbeam (4-1) is installed on the lifting frame (4), and the two ends of the circular shaft (12) are fixedly connected to the square tube columns (4-2) on both sides; The baffles (5) are arranged vertically and in multiple groups arranged left and right. The upper end of each baffle (5) is rotatably connected to the circular shaft (12) through a clearance fit. The second wire rope (9) consists of two or more sets, and each blocking plate (5) has a rope-passing hole (5-1) corresponding to the second wire rope (9); the second wire rope (9) passes through the rope-passing hole (5-1) on each blocking plate (5) in sequence, and the end is connected to the square tube column (4-2) on the corresponding side.

2. The inclined shaft car catching device of claim 1, wherein: The roller (10) includes a rolling bearing (10-2), a bolt (10-4), and a stepped sleeve (10-1). The stepped sleeve (10-1) is installed on the outer ring of the rolling bearing (10-2), and the bolt (10-4) passes through the inner ring of the rolling bearing (10-2) and is connected to the nut (10-5) welded to the outer wall of the square tube column (4-2); The shoulder of the stepped sleeve (10-1) fits into the edge of the angle steel column (8).

3. An inclined shaft car catching device according to claim 2, characterized in that: A washer is also provided between the inner ring of the rolling bearing (10-2) and the nut (10-5) to leave a gap between the outer ring of the rolling bearing (10-2) and the square tube column (4-2).

4. The inclined shaft vehicle catching device as described in claim 2, characterized in that: The stepped sleeve (10-1) has a threaded hole, in which a locking screw (10-3) is installed. The inner end of the locking screw (10-3) contacts the outer ring of the rolling bearing (10-2).

5. The inclined shaft vehicle catching device as described in claim 1, characterized in that: The end of the round shaft (12) is provided with a threaded hole, and the square tube column (4-2) is fixedly connected to the round shaft (12) by a mounting screw (11) that passes through a through hole in its inner wall and connects to the threaded hole.

6. The inclined shaft vehicle catching device as described in claim 1, characterized in that: The circular shaft (12) is also fitted with an isolation sleeve located between adjacent baffles (5) and between the outermost baffle (5) and the square tube column (4-2).

7. The inclined shaft vehicle catching device as described in claim 6, characterized in that: The isolation sleeve is a polyurethane sleeve (13).

8. The inclined shaft vehicle catching device as described in any one of claims 1 to 7, characterized in that: The telescopic cylinder (2) is a hydraulic cylinder.

Images