A lightweight tail rope suspension device for lifting container

Abstract

The present invention provides a lightweight tail rope suspension device for a lifting container, and belongs to the technical field of tail rope suspension devices. The device comprises a connecting cylinder, an upper end cover, a pull rod, a sleeve, a radial spherical sliding bearing, a thrust spherical sliding bearing, a slotted nut, a cotter pin, a lower end cover and a sealing ring. The upper part of the pull rod is connected to the slotted nut, and the upper part of the pull rod is respectively provided with a thrust spherical sliding bearing and a sleeve, and the outer part of the sleeve is provided with a radial spherical sliding bearing. The pull rod penetrates into the connecting cylinder, and the pull rod and the lower part of the connecting cylinder are sealed by a sealing ring. The upper part of the cavity part of the pull rod that penetrates into the connecting cylinder is provided with an upper end cover, and the lower part is provided with a lower end cover. The upper part of the device is connected to the tail beam of the lifting container through a pin shaft, and the lower part is directly or indirectly connected to different tail rope joints, so that the tail rope joint can rotate relative to the lifting container, and at the same time, it can be universally used for different types of tail rope joints. The present invention has a small weight, a simple and reasonable structure, high versatility, and convenient installation and maintenance, and is suitable for multi-rope lifting containers in vertical shafts of mines.

Description

Technical Field

[0001] The invention relates to the technical field of tail rope suspension devices, in particular to a lightweight tail rope suspension device for a lifting container. Background Art

[0002] In the current multi-rope hoisting system of mines, in order to reduce the tension difference between the wire ropes on the lifting side and the descending side, it is necessary and feasible to install a balancing tail rope at the bottom of the hoisting container. However, the tail rope is prone to produce huge torsional force due to the change of length and weight during use. If a reliable device is not used to eliminate the torsional force, the tail rope will fail prematurely, increase costs and seriously endanger production safety.

[0003] As shallow mineral resources are becoming increasingly depleted, in order to meet the country's demand for mineral resources, it is necessary to develop deep mineral resources. The increase in mining depth leads to a significant increase in the length and weight of the balance tail rope. In order to reduce the load on the first rope suspension device of the lifting container, it is imperative to develop a tail rope suspension device with large load capacity and light weight.

[0004] At present, the tail rope suspension devices used to eliminate torsional force in multi-rope lifting containers in mine shafts mainly include round tail rope suspension devices and flat tail rope suspension devices.

[0005] The round tail rope suspension device is suitable for round wire ropes and is mainly composed of connecting rods, suspension rods, bearings, etc. The tail rope joint is connected to the suspension device, and the weight of the tail rope acts directly on the thrust bearing through the fastening bolts. Therefore, the torsional force caused by the change of length and weight of the round tail rope during operation is automatically eliminated through the rotation of the thrust ball bearing.

[0006] The flat tail rope suspension device is suitable for flat steel wire ropes, and is mainly composed of joints, connecting plates, peach-shaped rings, rope clamps, etc. The steel wire rope is wound around the peach-shaped ring and clamped with multiple sets of rope clamps.

[0007] The shortcomings of the existing tail rope suspension device are as follows: (1) although it can eliminate the torsional force of the tail rope, it has a relatively complex structure and a large mass; (2) the round tail rope suspension device and the flat tail rope suspension device are not interchangeable. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a lightweight tail rope suspension device for a lifting container, which has light weight, simple structure, high reliability, strong versatility, high cost performance, easy installation and use, and is suitable for mine lifting systems.

[0009] The device includes a connecting cylinder, an upper end cover, a pull rod, a sleeve, a radial spherical sliding bearing, a thrust spherical sliding bearing, a slotted nut, a cotter pin, a lower end cover and a sealing ring. The upper end cover is located at the upper part of the connecting cylinder and is positioned by a shoulder. The sleeve is located at the middle and upper part of the pull rod and is positioned by a shaft shoulder at the middle and upper part of the pull rod. The thrust spherical sliding bearing is located at the bottom of the connecting cylinder and is positioned by the bottom surface of the connecting cylinder. The radial spherical sliding bearing is located in the middle of the connecting cylinder and is positioned by the upper end surface of the inner ring of the thrust spherical sliding bearing. The slotted nut is located at the upper part of the pull rod and is prevented from loosening by a cotter pin. The lower end cover is located at the lower part of the connecting cylinder and is fixed by bolts. A sealing ring is installed between the lower end cover and the pull rod.

[0010] Wherein, an external thread and a radial through hole are provided on the upper part of the pull rod.

[0011] The inner hole of the lower end cover is provided with a groove for installing a sealing ring.

[0012] A through hole is provided at the bottom of the connecting cylinder, and notches are provided on both sides of the through hole, so that the "core" composed of the pull rod and the parts thereon can be installed from the upper part of the cylinder downward.

[0013] The upper part of the device is connected to the tail beam of the lifting container through a pin shaft, and the lower part is directly or indirectly (through a transition section) connected to different tail rope joints (conical sleeve, peach-shaped ring), so as to realize the relative rotation of the tail rope joint to the lifting container and realize the universality of different types of tail rope joints.

[0014] The beneficial effects of the above technical solution of the present invention are as follows:

[0015] In the above scheme, the structure of the tail rope suspension device is simplified by changing the structure of the traditional tail rope suspension device; under the requirement of the same safety factor, the present invention can withstand a larger load than the traditional tail rope suspension device; compared with the traditional tail rope suspension device, the weight of the tail rope suspension device is greatly reduced; the current situation that traditional tail rope suspension devices cannot be used interchangeably is changed, the structure is simple, the operation is stable, and the installation and maintenance are convenient, and it has wide practicality in the technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the lightweight tail rope suspension device for lifting container of the present invention;

[0017] Figure 2 It is a side view of the lightweight tail rope suspension device for lifting container of the present invention;

[0018] Figure 3 This is a bottom view of the connection cylinder of the lightweight tail rope suspension device for the lifting container of the present invention.

[0019] Among them: 1-connecting cylinder; 2-upper end cover; 3-split pin; 4-slotted nut; 5-radial spherical sliding bearing; 6-sleeve; 7-thrust spherical sliding bearing; 8-lower end cover; 9-sealing ring; 10-pull rod. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0021] The invention provides a lightweight tail rope suspension device for a lifting container.

[0022] like Figure 1 and Figure 2 As shown, the device includes a connecting cylinder 1, an upper end cover 2, a pull rod 10, a sleeve 6, a radial spherical sliding bearing 5, a thrust spherical sliding bearing 7, a slotted nut 4, a cotter pin 3, a lower end cover 8 and a sealing ring 9. The upper end cover 2 is located at the upper part of the connecting cylinder 1 and is positioned by a shoulder. The sleeve 6 is located at the middle and upper part of the pull rod 10 and is positioned by a shoulder at the middle and upper part of the pull rod 10. The thrust spherical sliding bearing 7 is located at the bottom of the connecting cylinder 1 and is positioned by the bottom surface of the connecting cylinder 1. The radial spherical sliding bearing 5 is located in the middle of the connecting cylinder 1 and is positioned by the upper end surface of the inner ring of the thrust spherical sliding bearing 7. The slotted nut 4 is located at the upper part of the pull rod 10 and is prevented from loosening by the cotter pin 3. The lower end cover 8 is located at the lower part of the connecting cylinder 1 and is fixed by bolts. A sealing ring 9 is installed between the lower end cover 8 and the pull rod 10.

[0023] The upper portion of the pull rod 10 is provided with an external thread and a radial through hole.

[0024] The inner hole of the lower end cover 8 is provided with a groove for installing a sealing ring 9.

[0025] The upper part of the device is connected to the tail beam of the lifting container through a pin shaft, and the lower part is directly or indirectly connected to different tail rope joints.

[0026] When in use, the weight of the round tail rope connected to the tail rope joint is transmitted to the slotted nut 4 through the pull rod 10, and then the slotted nut 4 acts on the connecting cylinder 1 through the radial spherical sliding bearing 5 and the thrust spherical sliding bearing 7. The torsional force generated by the change in the length and weight of the tail rope during the lifting process is automatically eliminated through the rotation of the radial spherical sliding bearing 5 and the thrust spherical sliding bearing 7.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lightweight tail rope suspension device for lifting a container, characterized in that: The invention comprises a connecting cylinder (1), an upper end cover (2), a pull rod (10), a sleeve (6), a radial spherical sliding bearing (5), a thrust spherical sliding bearing (7), a slotted nut (4), a cotter pin (3), a lower end cover (8) and a sealing ring (9), wherein the upper end cover (2) is located at the upper part of the connecting cylinder (1) and is positioned by a shoulder, the sleeve (6) is located at the middle and upper part of the pull rod (10) and is positioned by a shaft shoulder at the middle and upper part of the pull rod (10), the thrust spherical sliding bearing (7) is located at the bottom of the connecting cylinder (1) and is positioned by a bottom surface of the connecting cylinder (1), the radial spherical sliding bearing (5) is located at the middle part of the connecting cylinder (1) and is positioned by an upper end surface of an inner ring of the thrust spherical sliding bearing (7), the slotted nut (4) is located at the upper part of the pull rod (10) and is prevented from loosening by a cotter pin (3), the lower end cover (8) is located at the lower part of the connecting cylinder (1) and is fixed by bolts, and a sealing ring (9) is installed between the lower end cover (8) and the pull rod (10); The upper part of the pull rod (10) is provided with an external thread and a radial through hole; The upper part of the device is connected to the tail beam of the lifting container through a pin shaft, and the lower part is directly or indirectly connected to different tail rope joints.

2. The lightweight tail rope suspension device for lifting container according to claim 1 is characterized in that: The inner hole of the lower end cover (8) is provided with a groove for installing a sealing ring (9).

3. The lightweight tail rope suspension device for lifting container according to claim 1, characterized in that: The bearing and rotation functions of the device are realized by a combined structure of a radial spherical sliding bearing (5) and a thrust spherical sliding bearing (7).

4. The lightweight tail rope suspension device for lifting container according to claim 1, characterized in that: The bottom of the connecting cylinder (1) is provided with a through hole, and notches are provided on both sides of the through hole, so that the core composed of the pull rod (10) and its upper parts can be installed from the top of the cylinder (1) downward.

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