Traction steel wire rope head fixing device for elevator

Abstract

The utility model discloses a traction steel wire rope head fixing device for an elevator, and belongs to the technical field of elevator parts. The device comprises a cylinder body assembly, a lining assembly, a liquid medium and a piston assembly, two cavities are formed in the lining assembly, the lining assembly is arranged in the cylinder body assembly, an oil way channel is arranged between the lining assembly and the cylinder body assembly, the oil way channel is communicated with the two cavities in the lining assembly through a plurality of damping holes, and the piston assembly is arranged in the cylinder body assembly. The liquid medium flows in two cavities in the oil way channel and the lining assembly, the piston assembly penetrates through one end of the cylinder body assembly, one end of the piston assembly extends into the lining assembly and is movably connected with the lining assembly, and the piston assembly is sleeved with a vibration reduction piece which is located in the lining assembly. On one hand, vibration reduction is conducted through the vibration reduction piece, on the other hand, the hydraulic oil can rapidly stabilize loads and reduce vibration under the damping effect of the damping holes, and the comfort degree of elevator operation is further improved.

Description

Technical Field

[0001] The utility model relates to a rope end fixing device for a traction steel wire rope used in an elevator, belonging to the technical field of elevator parts. Background Art

[0002] The existing elevator traction wire rope rope end fixing device often uses springs for vibration reduction. For example, the rope end fixing devices disclosed in the Chinese patent documents with publication numbers CN218201653U and CN208856729U all use springs for vibration reduction. However, when the elevator starts or stops, the load fluctuation caused by acceleration or deceleration is large, and the load fluctuation will be transmitted to the rope end fixing device through the traction wire rope. If only springs are used for vibration reduction, the vibration reduction effect is limited, which will lead to a decrease in the comfort of the elevator operation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a device for fixing the rope end of a traction steel wire rope for an elevator.

[0004] The utility model is realized through the following technical solutions:

[0005] A device for fixing the end of a traction wire rope for an elevator comprises a cylinder assembly, a lining assembly, a liquid medium and a piston assembly, wherein the lining assembly is provided with two chambers, the lining assembly is arranged in the cylinder assembly, and an oil passage is provided between the lining assembly and the cylinder assembly, the oil passage is connected with the two chambers in the lining assembly through a plurality of damping holes respectively, the liquid medium flows in the oil passage and the two chambers in the lining assembly, the piston assembly passes through one end of the cylinder assembly, and one end of the piston assembly extends into the lining assembly and is movably connected with the lining assembly, a vibration damping component is mounted on the piston assembly, and the vibration damping component is located in the lining assembly.

[0006] The cylinder assembly comprises a cylinder body, one end of which is detachably connected to a head A, and the other end of which is sequentially provided with a head B, a hole clamping ring and an end cover, the head B is slidably connected to the inner wall of the cylinder body, and the end cover is connected to the head B via a fastener.

[0007] The end cap A is threadedly connected to the cylinder body, and a countersunk hole is provided on the end of the end cap A away from the end cap B.

[0008] The head B is coaxially provided with a through hole A, the inner wall of the through hole A is provided with a plurality of annular grooves A along the circumferential direction, and a nylon guide sleeve is installed in the annular groove A.

[0009] The lining assembly comprises an inner sleeve and a sealing plate, wherein the sealing plate is fixedly arranged in the inner sleeve.

[0010] One end of the inner sleeve is sleeved on the head A, and the other end is sleeved on the head B. The device also includes an exhaust pipe, one end of which passes through the sealing plate and is connected to the chamber where the piston assembly is installed, and the other end passes through one end of the cylinder assembly and is connected to the outside.

[0011] The oil passage is cylindrical.

[0012] The piston assembly includes a piston and a piston rod. The piston is located in the liner assembly. One end of the piston rod passes through the piston and is threadedly connected with a locking nut. The other end of the piston rod extends out of the cylinder assembly and is connected with a rope head connector.

[0013] An annular groove B is provided on the piston along the circumferential direction, and a Y-shaped sealing ring is installed in the annular groove B.

[0014] The vibration damping member is a spring.

[0015] The beneficial effects of the utility model are: on the one hand, vibration is reduced by the vibration-damping member, and on the other hand, the hydraulic oil can quickly stabilize the load and reduce vibration under the damping effect of the damping hole, thereby further improving the comfort of elevator operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model.

[0018] In the figure: 1-cylinder body, 2-head A, 200-countersunk hole, 3-inner sleeve, 300-damping hole, 4-sealing plate, 5-locking nut, 6-piston, 7-vibration damping part, 8-head B, 9-nylon guide sleeve, 10-hole clamping ring, 11-piston rod, 12-rope head connector, 13-fastener, 14-end cover, 15-oil channel, 16-Y-type sealing ring, 17-exhaust pipe. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0020] like Figure 1 and Figure 2As shown, the utility model describes a rope end fixing device for a traction wire rope for an elevator, comprising a cylinder assembly, a lining assembly, a liquid medium and a piston assembly, wherein the lining assembly is provided with two chambers, the lining assembly is arranged in the cylinder assembly, and an oil passage 15 is provided between the lining assembly and the cylinder assembly, the oil passage 15 is communicated with the two chambers in the lining assembly through a plurality of damping holes 300 respectively, the liquid medium flows in the oil passage 15 and the two chambers in the lining assembly, the piston assembly passes through one end of the cylinder assembly, and one end of the piston assembly extends into the lining assembly and is slidably connected with the lining assembly, a vibration damping member 7 is mounted on the piston assembly, and the vibration damping member 7 is located in the lining assembly. When in use, the liquid medium is hydraulic oil. When the elevator starts or stops, the load fluctuation caused by acceleration or deceleration will be transmitted to the rope head fixing device through the traction wire rope, causing the piston assembly to move up and down. When the piston assembly moves downward, the vibration is reduced through the vibration damping member 7. At the same time, the hydraulic oil in the chamber where the piston assembly is installed enters the oil channel 15 through the damping hole 300, and then enters the chamber above the piston assembly through other damping holes 300; when the load is reduced, under the action of the vibration damping member 7, the piston assembly moves upward, and the hydraulic oil in the chamber above the piston assembly enters the oil channel 15 through the damping hole 300 under the action of suction, and then enters the chamber where the piston assembly is installed through other damping holes 300. It can be seen from this that the utility model, on the one hand, reduces vibration through the vibration damping member 7, and on the other hand, the hydraulic oil can quickly stabilize the load and reduce vibration under the damping action of the damping hole 300, further improving the comfort of elevator operation.

[0021] The cylinder assembly includes a cylinder 1, one end of which is detachably connected to a head A2, and the other end of the cylinder 1 is provided with a head B8, a hole clamping ring 10 and an end cover 14 in sequence, the head B8 is slidably connected to the inner wall of the cylinder 1, and the end cover 14 is connected to the head B8 through a fastener 13. When in use, the fastener 13 includes a locking screw, a flat washer and a spring washer. The head B8 is locked and fixed to one end of the cylinder 1 through the joint action of the fastener 13, the hole clamping ring 10 and the end cover 14.

[0022] The end cap A2 is threadedly connected to the cylinder body 1, and a countersunk hole 200 is provided on the end of the end cap A2 away from the end cap B8. When in use, by rotating the end cap A2, the two ends of the inner sleeve 3 can be tightly pressed against the ends of the end cap A2 and the end cap B8, so that the countersunk hole 200 can be used to tighten and adjust the end cap A2.

[0023] The sealing head B8 is coaxially provided with a through hole A, and the inner wall of the through hole A is provided with two annular grooves A in the circumferential direction, and a nylon guide sleeve 9 is installed in the annular groove A. The nylon guide sleeve 9 is used to guide the piston rod 11 and has a certain sealing effect.

[0024] The lining assembly comprises an inner sleeve 3 and a sealing plate 4 , and the sealing plate 4 is fixedly arranged in the inner sleeve 3 .

[0025] One end of the inner sleeve 3 is sleeved on the end cap A2, and the other end is sleeved on the end cap B8. The device also includes an exhaust pipe 17, one end of which passes through the sealing plate 4 and is connected to the chamber where the piston assembly is installed, and the other end passes through one end of the cylinder assembly and is connected to the outside. The closed chamber between the piston assembly and the sealing plate 4 is connected to the outside atmosphere through the exhaust pipe, so that the air pressure in the closed chamber is consistent with the outside atmospheric pressure, which helps to ensure that the piston assembly moves up and down smoothly and stably.

[0026] The oil passage 15 is cylindrical. Figure 1 As shown, when in use, the oil passage 15 is connected to the chamber on the upper side of the sealing plate 4 through two groups of damping holes 300, and is connected to the chamber on the lower side of the piston 6 through six groups of damping holes 300, and each group of damping holes 300 includes six evenly distributed damping holes 300.

[0027] The piston assembly includes a piston 6 and a piston rod 11. The piston 6 is located in the liner assembly. One end of the piston rod 11 passes through the piston 6 and is threadedly connected to a locking nut 5. The other end of the piston rod 11 extends out of the cylinder assembly and is connected to a rope end connector 12.

[0028] The piston 6 is provided with an annular groove B along the circumference, and a Y-shaped sealing ring 16 is installed in the annular groove B. When installing, it is noted that the opening of the Y-shaped sealing ring 16 faces the vibration damper 7 side. When the Y-shaped sealing ring 16 is acted upon by the high-pressure hydraulic oil on the vibration damper 7 side, its lip is pressed against the inner wall of the inner sleeve 3 by the pressure of the hydraulic oil, thereby preventing the hydraulic oil from leaking to the upper side of the piston 6. The vibration damper 7 is a spring.

Claims

1. A rope end fixing device for a traction steel wire rope for an elevator, characterized in that: The invention comprises a cylinder assembly, a liner assembly, a liquid medium and a piston assembly, wherein the liner assembly is provided with two chambers, the liner assembly is arranged in the cylinder assembly, and an oil passage (15) is provided between the liner assembly and the cylinder assembly, the oil passage (15) is communicated with the two chambers in the liner assembly through a plurality of damping holes (300), the liquid medium flows in the oil passage (15) and the two chambers in the liner assembly, the piston assembly passes through one end of the cylinder assembly, and one end of the piston assembly extends into the liner assembly and is movably connected with the liner assembly, the piston assembly is provided with a vibration damping component (7), and the vibration damping component (7) is located in the liner assembly.

2. The elevator traction steel wire rope end fixing device according to claim 1, characterized in that: The cylinder assembly comprises a cylinder (1), one end of the cylinder (1) being detachably connected to a head A (2), the other end of the cylinder (1) being provided with a head B (8), a hole clamping ring (10) and an end cover (14) in sequence, the head B (8) being slidably connected to the inner wall of the cylinder (1), and the end cover (14) being connected to the head B (8) via a fastener (13).

3. The rope end fixing device for elevator traction wire rope according to claim 2, characterized in that: The sealing head A (2) is threadedly connected to the cylinder body (1), and a countersunk hole (200) is provided on the end of the sealing head A (2) away from the sealing head B (8).

4. The rope end fixing device for elevator traction wire rope according to claim 2, characterized in that: The sealing head B (8) is coaxially provided with a through hole A, and the inner wall of the through hole A is provided with a plurality of annular grooves A along the circumferential direction, and a nylon guide sleeve (9) is installed in the annular groove A.

5. The rope end fixing device for elevator traction wire rope according to claim 2, characterized in that: The lining assembly comprises an inner sleeve (3) and a sealing plate (4), wherein the sealing plate (4) is fixedly arranged in the inner sleeve (3).

6. The rope end fixing device for elevator traction wire rope according to claim 5, characterized in that: One end of the inner sleeve (3) is sleeved on the head A (2), and the other end is sleeved on the head B (8); the device also includes an exhaust pipe (17), one end of which passes through the sealing plate (4) and is connected to the chamber where the piston assembly is installed, and the other end passes through one end of the cylinder assembly and is connected to the outside.

7. The rope end fixing device for elevator traction wire rope according to claim 1, characterized in that: The oil passage (15) is cylindrical.

8. The rope end fixing device for elevator traction wire rope according to claim 1, characterized in that: The piston assembly comprises a piston (6) and a piston rod (11), wherein the piston (6) is located in the liner assembly, one end of the piston rod (11) passes through the piston (6) and is threadedly connected to a locking nut (5), and the other end of the piston rod (11) extends out of the cylinder assembly and is connected to a rope end connector (12).

9. The rope end fixing device for traction steel wire rope for elevator according to claim 8, characterized in that: The piston (6) is provided with an annular groove B in the circumferential direction, and a Y-shaped sealing ring (16) is installed in the annular groove B.

10. The rope end fixing device for elevator traction steel wire rope according to claim 1, characterized in that: The vibration damping member (7) is a spring.

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