Tail rope suspension device for lifting container

Abstract

The present invention provides a lifting container tail rope suspension device, which belongs to the technical field of suspension devices. The device includes a connecting cylinder, an upper end cover, a single-row deep groove ball bearing, a large sleeve, a slotted nut, a spherical roller thrust bearing, a lower end cover, a pull rod, a small sleeve, a cotter pin and a sealing ring. The upper part of the device is connected to the lifting container tail beam through a pin shaft, and the lower part is directly or indirectly connected to different tail rope joints to achieve the relative rotation of the tail rope joint to the lifting container, and at the same time achieve the universal use of different types of tail rope joints. The weight of the tail rope directly acts on the thrust roller bearing through the slotted nut on the pull rod, so the torsional force caused by the length and weight changes of the tail rope during the lifting process is automatically eliminated through the rotation of the thrust roller bearing. The present invention has the characteristics of light weight, 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 suspension devices, in particular to a 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 torsion force of the tail rope, it has the problem of relatively complex structure and 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 lifting container tail rope suspension device, 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 lower end cover, a large sleeve, a single-row deep groove ball bearing, a slotted nut, a spherical roller thrust bearing, a small sleeve, a cotter pin and a sealing ring. The connecting cylinder is at the outermost part of the entire device. The lower part of the upper end cover is a pull rod. Two single-row deep groove ball bearings are installed on both sides of the upper part of the pull rod. A small sleeve is arranged between the single-row deep groove ball bearing and the pull rod. A large sleeve is arranged between the single-row deep groove ball bearing and the connecting cylinder. A slotted nut is arranged on the pull rod at the lower part of the single-row deep groove ball bearing. A cotter pin is arranged on the slotted nut. A spherical roller thrust bearing is arranged at the lower part of the slotted nut. The lower part of the connecting cylinder is arranged. A sealing ring is arranged between the lower end cover and the pull rod.

[0010] Specifically, the large sleeve is located in the middle of the connecting cylinder and is positioned by a shoulder in the middle of the connecting cylinder.

[0011] The two-disc single-row deep groove ball bearing is located on the upper part of the tie rod and is positioned by the upper and lower end surfaces of the small sleeve and the tie rod shoulder.

[0012] The small sleeve is located on the upper part of the tie rod and between the two-disc single-row deep groove ball bearings.

[0013] The slotted nut is located in the upper middle part of the tie rod and is secured against loosening by a split pin.

[0014] A spherical roller thrust bearing is located in the middle of the pull rod and is positioned through the lower end surface of the slotted nut and the bottom surface of the connecting cylinder.

[0015] The upper end cover is provided with an oil filling hole.

[0016] An external thread and a through hole are provided at the upper middle part of the pull rod.

[0017] The beneficial effects of the above technical solution of the present invention are as follows:

[0018] In the above scheme, the present invention simplifies the structure of the tail rope suspension device by changing the structure of the traditional tail rope suspension device. At the same time, the weight is greatly reduced compared with the traditional round tail rope suspension device. It has a simple structure, stable operation, and is easy to install and maintain. It has wide practicality in this technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the tail rope suspension device for lifting container of the present invention.

[0020] Figure 2 It is a side view of the tail rope suspension device of the lifting container of the present invention.

[0021] Among them: 1-connecting cylinder; 2-upper end cover; 3-single row deep groove ball bearing; 4-large sleeve; 5-slotted nut; 6-spherical roller thrust bearing; 7-lower end cover; 8-pull rod; 9-small sleeve; 10-split pin; 11-sealing ring. DETAILED DESCRIPTION

[0022] 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.

[0023] The invention provides a tail rope suspension device for a lifting container.

[0024] like Figure 1 and Figure 2 As shown, the device includes a connecting cylinder 1, an upper end cover 2, a tie rod 8, a lower end cover 7, a large sleeve 4, a single-row deep groove ball bearing 3, a slotted nut 5, a spherical roller thrust bearing 6, a small sleeve 9, a cotter pin 10 and a sealing ring 11. The connecting cylinder 1 is at the outermost part of the entire device, the lower part of the upper end cover 2 is the tie rod 8, two single-row deep groove ball bearings 3 are installed on both sides of the upper part of the tie rod 8, a small sleeve 9 is arranged between the single-row deep groove ball bearing 3 and the tie rod 8, a large sleeve 4 is arranged between the single-row deep groove ball bearing 3 and the connecting cylinder 1, a slotted nut 5 is arranged on the tie rod 8 at the lower part of the single-row deep groove ball bearing 3, a cotter pin 10 is arranged on the slotted nut 5, a spherical roller thrust bearing 6 is arranged at the lower part of the slotted nut 5, the lower end cover 7 is arranged at the lower part of the connecting cylinder 1, and a sealing ring 11 is arranged between the lower end cover 7 and the tie rod 8.

[0025] Specifically, the large sleeve 4 is located in the middle of the connecting cylinder 1 and is positioned by a shoulder in the middle of the connecting cylinder 1 .

[0026] The two-disc single-row deep groove ball bearing 3 is located on the upper part of the pull rod 8 and is positioned by the upper and lower end surfaces of the small sleeve 9 and the shoulder of the pull rod 8.

[0027] The small sleeve 9 is located on the upper part of the pull rod 8 and between the two single-row deep groove ball bearings 3 .

[0028] The slotted nut 5 is located at the upper middle part of the pull rod 8 and is prevented from loosening by a cotter pin 10 .

[0029] A spherical roller thrust bearing 6 is located in the middle of the pull rod 8 and is positioned by the lower end surface of the slotted nut 5 and the bottom surface of the connecting cylinder 1.

[0030] The upper end cover 2 is provided with an oil filling hole.

[0031] An external thread and a through hole are formed in the upper middle portion of the pull rod 8 .

[0032] In actual applications, the upper part of the suspension device can be connected to the tail beam of the lifting container through a pin shaft, and the lower part can be directly or indirectly (through a transition section) connected to different tail rope joints (conical sleeve, peach-shaped ring) to achieve relative rotation of the tail rope joint to the lifting container, while achieving universal use of different types of tail rope joints.

[0033] When in use, the weight of the round tail rope connected to the tail rope joint is transmitted to the slotted nut 5 through the pull rod 8, and the slotted nut 5 directly acts on a spherical roller thrust bearing 6, which in turn directly acts on the bottom surface of the connecting cylinder 1. During the lifting process, the torsional force generated by the change in the length and weight of the tail rope is automatically eliminated through the rotation of the spherical roller thrust bearing 6 and the two single-row deep groove ball bearings 3.

[0034] 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 tail rope suspension device for a lifting container, characterized in that: The device comprises a connecting cylinder (1), an upper end cover (2), a tie rod (8), a lower end cover (7), a large sleeve (4), a single-row deep groove ball bearing (3), a slotted nut (5), a spherical roller thrust bearing (6), a small sleeve (9), a cotter pin (10) and a sealing ring (11). The connecting cylinder (1) is at the outermost part of the entire device. The lower part of the upper end cover (2) is a tie rod (8). Two single-row deep groove ball bearings (3) are installed on both sides of the upper part of the tie rod (8). The single-row deep groove ball bearing (3) and the tie rod (8) are connected to the connecting cylinder (1). A small sleeve (9) is arranged between the rods (8), a large sleeve (4) is arranged between the single-row deep groove ball bearing (3) and the connecting cylinder (1), a slotted nut (5) is arranged on the pull rod (8) below the single-row deep groove ball bearing (3), a cotter pin (10) is arranged on the slotted nut (5), a spherical roller thrust bearing (6) is arranged below the slotted nut (5), a lower end cover (7) is arranged at the lower part of the connecting cylinder (1), and a sealing ring (11) is arranged between the lower end cover (7) and the pull rod (8); The slotted nut (5) is located in the upper middle part of the pull rod (8) and is prevented from loosening by a split pin (10); The spherical roller thrust bearing (6) is located in the middle of the pull rod (8) and is positioned through the lower end surface of the slotted nut (5) and the bottom surface of the connecting cylinder (1); the upper end cover (2) is provided with an oil filling hole; When in use, the weight of the round tail rope connected to the tail rope joint is transmitted to the slotted nut through the pull rod, and the slotted nut directly acts on a spherical roller thrust bearing, which in turn directly acts on the bottom surface of the connecting cylinder. 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 spherical roller thrust bearing and two single-row deep groove ball bearings.

2. The tail rope suspension device for lifting container according to claim 1, characterized in that: The large sleeve (4) is located in the middle of the connecting cylinder (1) and is positioned by a shoulder in the middle of the connecting cylinder (1).

3. The tail rope suspension device for lifting container according to claim 1, characterized in that: The two-disc single-row deep groove ball bearing (3) is located on the upper part of the pull rod (8) and is positioned through the upper and lower end surfaces of the small sleeve (9) and the shoulder of the pull rod (8).

4. The tail rope suspension device for lifting container according to claim 1, characterized in that: The small sleeve (9) is located on the upper part of the pull rod (8) and between the two-disc single-row deep groove ball bearings (3).

5. The tail rope suspension device for lifting container according to claim 1, characterized in that: The upper middle portion of the pull rod (8) is provided with an external thread and a through hole.

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