Rope blocking device for preventing steel wire rope of elevator from disengaging from groove

Abstract

The utility model relates to an elevator steel wire rope groove-disengaging-preventing rope blocking device, and belongs to the technical field of elevators, the elevator steel wire rope groove-disengaging-preventing rope blocking device comprises a diversion sheave and a rope blocking plate, side blocking pieces which are bent by 90 degrees are arranged on the two sides of the rope blocking plate, the outer side of the diversion sheave is wrapped by the combination of the side blocking pieces and the rope blocking plate, and the steel wire rope is limited in a rope groove of the diversion sheave; comprising a diversion sheave and a rope blocking plate, side blocking pieces bent by 90 degrees are arranged on the two sides of the rope blocking plate, and the side blocking pieces and the rope blocking plate are combined to wrap the outer side of the diversion sheave, so that a steel wire rope is limited in a rope groove of the diversion sheave. According to the groove-disengaging-preventing rope blocking device for the steel wire rope of the elevator, through the arranged rope blocking plate and the side blocking piece, the rope blocking plate blocks and limits the steel wire rope in a rope groove of the diversion sheave, and meanwhile the arranged side blocking piece is matched, so that the gap between the side blocking piece and the diversion sheave is smaller than the diameter of the steel wire rope; and the steel wire rope cannot be completely separated from the diversion sheave after being separated from the rope groove.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a rope retaining device for preventing an elevator wire rope from falling out of a groove. Background Art

[0002] The installation of the elevator wire rope and return pulley is an important part of elevator installation and maintenance. To ensure the safety and normal operation of the elevator, first install the return pulley at the appropriate position of the elevator shaft, usually in the machine room at the top of the elevator. Make sure that the installation position of the return pulley is level and firm to avoid loosening due to vibration or load. Then pass one end of the wire rope through the return pulley to ensure that the wire rope is correctly positioned in the groove of the return pulley and that the direction of the wire rope is consistent with the direction of operation of the elevator.

[0003] The purpose of setting up the rope stop device is to prevent the wire rope from falling out of the groove, especially when the brake is emergency braked and the overspeed protection device (safety clamp, rope clamp, etc.) is activated. When the above situation occurs, the wire rope will be briefly tightened and relaxed on the traction sheave and the return rope sheave. At this time, the wire rope is most likely to fall out of the rope groove or completely detach from the rope sheave, causing the elevator to enter a dangerous state.

[0004] The existing rope-stopping device is a baffle structure arranged on the outside of the return rope pulley and there is a certain gap between the return rope pulley and the baffle structure. This also leads to the situation that when encountering the above situation, the radial diameter of the wire rope is smaller than the gap when it is subjected to tension, thereby causing the wire rope to completely escape from the rope groove. Therefore, the present application designs a rope-stopping device that effectively prevents the wire rope from escaping from the rope groove of the return rope pulley to solve this deficiency in the existing technology. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an elevator wire rope anti-slip groove rope retaining device, which has the advantages of effectively preventing the wire rope from escaping from the rope groove of the anti-rope pulley.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a rope retaining device for preventing an elevator wire rope from slipping out of a groove, comprising a deflecting pulley and a rope retaining plate, wherein side retaining plates are provided on both sides of the rope retaining plate and are bent at 90 degrees. The side retaining plates and the rope retaining plate are combined to wrap around the outer side of the deflecting pulley, so that the wire rope is restricted in the rope groove of the deflecting pulley;

[0007] The rope blocking plate is provided with a limiting sleeve which is arranged outside the steel wire rope and which limits the steel wire rope from displacement.

[0008] As a preferred technical solution of the present invention, the adjustment and limiting assembly includes an adjustment member and a limiting member;

[0009] An adjusting member, comprising a plurality of adjusting connecting rods and a connecting plate mounted on the rope blocking plate;

[0010] Among them, the surface of the adjustment connecting rod is provided with an adjustment lock groove, and the connecting plate is provided with a plurality of adjustment locking rods that can move up and down and slide within the adjustment lock groove, and the surface of the adjustment locking rod is provided with two pin holes respectively located on the upper and lower sides of the connecting plate.

[0011] As an optimal technical solution of the present invention, the number of the adjustment lock slots and the adjustment locking rods are equal and they are slidably matched one by one, and the adjustment locking rods and the adjustment lock slots do not separate from each other.

[0012] As a preferred technical solution of the present invention, the limiting member includes a hollow cylindrical limiting sleeve installed at one end of the adjusting connecting rod, and the rope blocking plate, the adjusting connecting rod and the limiting sleeve are in a horizontal and vertical state;

[0013] Wherein, the limiting sleeve is provided with a rolling element for limiting the position between the sleeve and the wire rope to reduce friction resistance.

[0014] As a preferred technical solution of the present invention, the rolling element includes a ball groove provided on the inner wall of the limiting sleeve, and a plurality of stainless steel balls roll in the ball groove.

[0015] As a preferred technical solution of the present invention, the gap between the side baffle and the deflecting pulley is smaller than the diameter of the wire rope.

[0016] As a preferred technical solution of the present invention, a rack is installed in the adjustment lock groove, and a tooth block engaged with the rack is installed at one end of the adjustment locking rod.

[0017] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0018] The elevator wire rope anti-slip groove rope blocking device uses the provided rope blocking plate and side baffles to block and limit the wire rope in the rope groove of the return rope pulley. At the same time, the side baffles are provided to ensure that the gap between the side baffles and the return rope pulley is smaller than the diameter of the wire rope, ensuring that the wire rope will not completely separate from the return rope pulley even after escaping from the rope groove. In addition, the provided adjustment limit component is used to vertically limit the wire rope in the rope groove, so that when the brake is emergency braked and the safety clamp and rope clamp of the overspeed protection device are activated, the wire rope is directionally vertically limited to avoid large left and right movement that causes the wire rope to escape from the rope groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a side perspective view of the present utility model;

[0021] Figure 3 This is a three-dimensional diagram of the internal structure of the limiting sleeve of the utility model;

[0022] Figure 4 It is a front perspective view of the utility model.

[0023] In the figure: 1. Anti-rope pulley; 2. Rope stop plate; 3. Side baffle; 4. Connecting plate; 5. Adjusting connecting rod; 6. Adjusting lock to groove; 7. Adjusting locking rod; 8. Pin hole; 9. Limiting sleeve; 10. Ball groove; 11. Stainless steel ball. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 2 , an elevator wire rope anti-slip groove rope retaining device in this embodiment includes a deflection pulley 1 and a rope retaining plate 2. The deflection pulley 1 is provided with a plurality of rope grooves for the wire rope to bypass at equal distances. The two sides of the rope retaining plate 2 are integrally connected with side baffles 3 bent at ninety degrees, which are respectively located on the outside of the outermost rope grooves on both sides, thereby limiting the wire rope in the rope groove between the two side baffles 3. The side baffles 3 and the rope retaining plate 2 are combined to wrap the outer side of the deflection pulley 1, so that the wire rope is limited in the rope groove of the deflection pulley 1.

[0026] The rope stop plate 2 is in a horizontal and vertical state with the outer side of the deflecting pulley 1 during installation, and the rope stop plate 2 is installed on the elevator by fastening screws.

[0027] In this embodiment, the rope blocking plate 2 is provided with an adjustment and limiting assembly which is sleeved outside the steel wire rope and which prevents the steel wire rope from displacement.

[0028] It should be noted that the adjustment and limiting assembly includes an adjustment member and a limiting member;

[0029] The adjusting member includes a plurality of adjusting connecting rods 5 and a connecting plate 4 integrally connected to the rope blocking plate 2 .

[0030] Among them, the surface of the adjusting connecting rod 5 is provided with an adjusting lock groove 6, and the connecting plate 4 is provided with a plurality of adjusting locking rods 7 that can move up and down and slide within the adjusting lock groove 6. The surface of the adjusting locking rod 7 is provided with two pin holes 8 respectively located on the upper and lower sides of the connecting plate 4.

[0031] The number of the adjustment lock slots 6 and the adjustment locking rods 7 are equal and they slide in a one-to-one correspondence, and the adjustment locking rods 7 and the adjustment lock slots 6 do not separate from each other. The connecting plate 4 is provided with an adjustment hole for the adjustment locking rods 7 to move up and down linearly.

[0032] The limiting member includes a hollow cylindrical limiting sleeve 9 installed and fixed to one end of the adjusting connecting rod 5. The rope blocking plate 2, the adjusting connecting rod 5 and the limiting sleeve 9 are in a horizontal and vertical state to ensure that after the overall equipment is installed, after the wire rope passes through the limiting sleeve 9, the wire rope bypasses the rope groove on the return rope pulley 1 and is in a vertical state, avoiding excessive friction between the wire rope and the equipment when the horizontal and vertical state is not reached, causing wear on the equipment and the return rope pulley 1;

[0033] See also Figures 3 to 4 , wherein the limiting sleeve 9 is provided with a rolling element for limiting the position between the steel wire rope and reducing friction resistance.

[0034] The rolling element includes a ball groove 10 in a circular shape opened on the inner wall of the limiting sleeve 9, and a plurality of stainless steel balls 11 roll in the ball groove 10. The stainless steel balls 11 roll along the circular path of the ball groove 10, and the stainless steel balls 11 and the ball groove 10 do not separate from each other.

[0035] In addition, the diameter of the composition space between the circumferential arrangement of the stainless steel balls 11 of the present application is selected according to the diameter of the steel wire rope to ensure that the steel wire rope can pass through the composition space between the stainless steel balls 11.

[0036] The gap between the side baffle 3 and the deflecting pulley 1 is smaller than the diameter of the wire rope.

[0037] When installing the rope stop plate 2, it is necessary to ensure that when the radial diameter of the wire rope is reduced by tension, the reduced wire diameter must be larger than the gap between the side stop plate 3 and the detent pulley 1 to avoid the wire rope from escaping from the gap.

[0038] A rack is fixedly installed in the adjustment lock groove 6, and a tooth block fixedly engaged with the rack is installed at one end of the adjustment locking rod 7. When the two pin holes 8 are respectively located on the upper and lower sides of the connecting plate 4, the rack and the tooth block are in an engaged state. Pulling up the adjustment locking rod 7 can separate the rack and the tooth block, making it convenient for the adjustment connecting rod 5 to move back and forth outside the adjustment locking rod 7 through the adjustment lock groove 6.

[0039] There are two fixing schemes for the setting of the pin hole 8 in the present application to lock the adjustment locking rod 7 and the connecting plate 4. One is to insert and fix the pin into the pin hole 8, so that the connecting plate 4 is limited between the two pins to complete the connection and fixation of the adjustment locking rod 7 and the connecting plate 4. The second is to use a binding wire to pass through the two pin holes 8 and wrap around the outside of the connecting plate 4 for binding and fixation, so as to achieve the connection and fixation of the adjustment locking rod 7 and the connecting plate 4.

[0040] The working principle of the above embodiment is:

[0041] When in use, the rope blocking plate 2 and the side blocking piece 3 are provided, so that the rope blocking plate 2 blocks the steel wire rope in the rope groove of the return rope pulley 1 and cooperates with the side blocking piece 3 to ensure that the gap between the side blocking piece 3 and the return rope pulley 1 is smaller than the diameter of the steel wire rope, thereby ensuring that the steel wire rope will not be completely separated from the return rope pulley even if it escapes from the rope groove;

[0042] The locking rod 7 is locked in the locking groove 6 and the locking rod 8 is locked in the locking groove 6, thereby ensuring that the wire rope in the rope groove is vertically limited.

[0043] In addition, when the limiting sleeve 9 is installed on the outside of the wire rope for vertical limiting, the wire rope will contact the stainless steel ball 11 in the ball groove 10, ensuring that the wire rope rolls through the stainless steel ball 11 during movement, reducing the contact friction resistance between them, and avoiding the limitation causing greater wear on the wire rope.

Claims

1. An elevator wire rope anti-slip groove rope retaining device, comprising a rope return pulley (1) and a rope retaining plate (2), characterized in that: Side baffles (3) bent at ninety degrees are provided on both sides of the rope baffle plate (2); the side baffles (3) and the rope baffle plate (2) are combined to wrap the outer side of the deflecting pulley (1), so that the steel wire rope is limited in the rope groove of the deflecting pulley (1); The rope blocking plate (2) is provided with an adjustment and limiting assembly which is arranged on the outside of the steel wire rope and which prevents the steel wire rope from displacement.

2. The elevator wire rope anti-slip groove rope retaining device according to claim 1, characterized in that: The adjustment and limiting assembly includes an adjustment member and a limiting member; An adjusting member comprising a plurality of adjusting connecting rods (5) and a connecting plate (4) mounted on the rope blocking plate (2); The surface of the adjusting connecting rod (5) is provided with an adjusting lock groove (6), the connecting plate (4) is provided with a plurality of adjusting locking rods (7) that can move up and down and limit the sliding movement into the adjusting lock groove (6), and the surface of the adjusting locking rod (7) is provided with two latch holes (8) respectively located on the upper and lower sides of the connecting plate (4).

3. The elevator wire rope anti-slip groove rope retaining device according to claim 2, characterized in that: The number of the adjusting lock slots (6) and the adjusting locking rods (7) is equal and they are slidably matched one by one, and the adjusting locking rods (7) and the adjusting lock slots (6) do not separate from each other.

4. The elevator wire rope anti-slip groove rope retaining device according to claim 2, characterized in that: The limiting member comprises a hollow cylindrical limiting sleeve (9) installed at one end of the adjusting connecting rod (5); the rope blocking plate (2), the adjusting connecting rod (5) and the limiting sleeve (9) are in a horizontal and vertical state; Wherein, the limiting sleeve (9) is provided with a rolling element for limiting the position between the steel wire rope and reducing friction resistance.

5. The elevator wire rope anti-slip groove rope retaining device according to claim 4, characterized in that: The rolling element comprises a ball groove (10) provided on the inner wall of the limiting sleeve (9), and a plurality of stainless steel balls (11) roll in the ball groove (10).

6. The elevator wire rope anti-slip groove rope retaining device according to claim 1, characterized in that: The gap between the side baffle (3) and the deflecting pulley (1) is smaller than the diameter of the steel wire rope.

7. The elevator wire rope anti-slip groove rope retaining device according to claim 2, characterized in that: A rack is installed in the adjustment lock groove (6), and a tooth block engaged with the rack is installed at one end of the adjustment locking rod (7).

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