Automatic tension balancing device for steel wire rope of elevator

Abstract

The utility model relates to the technical field of steel wire rope tension adjustment, in particular to an elevator steel wire rope tension automatic balancing device which comprises a mounting panel, positioning seats are fixedly connected to the four corners of the mounting panel, and a steel wire rope body is arranged on one side of the mounting panel. When the tension of the steel wire rope is unbalanced, the two hydraulic cylinders extend to drive the connecting block to rotate on the side wall of the rotating plate, so that the rotating plate can be driven to rotate around the shaft rod, then the two driving sliding blocks can slide in the sliding rail grooves, and then the driving sliding blocks drive the cross-shaped block to slide in the limiting groove. In this way, the rope pressing wheels at the ends of the two adjusting seats can be driven to move relatively, the rope pressing wheels can press the steel wire rope body for tension adjustment, the steel wire rope body is extruded and bent, acting force can be applied to the steel wire rope body with reduced tension, and therefore the tension of the steel wire rope is increased; therefore, the tension of the plurality of steel wire ropes can be adjusted to be balanced by the automatic tension balancing device.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope tension adjustment technical field, specifically is a hoist steel wire rope tension automatic balancing device. BACKGROUND

[0002] Hoist steel wire rope tension balance is the important link of ensuring hoist safe operation, in the actual use of hoist steel wire rope, under a variety of conditions, its tension imbalance will be caused, the elastic elongation and tension of multiple steel wire ropes under the action of load will be different, if the stiffness of steel wire rope exists difference, will lead to tension imbalance, after the lifting steel wire rope is connected and fixed with the lifting container, the relaxation degree of each steel wire rope is different, leading to the elastic elongation and tension of each steel wire rope, if the sliding of steel wire rope on the friction wheel is not equal, the distribution proportion of total load in each rope can be affected, thereby leading to tension imbalance. The tension of each steel wire rope is inconsistent, makes tension imbalance, easily leads to steel wire rope rupture, therefore can influence the safe operation of hoist, thereby needing hoist steel wire rope automatic balancing device. SUMMARY

[0003] The utility model aims at providing a kind of hoist steel wire rope tension automatic balancing device to solve the problems raised in the above background technique.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of hoist steel wire rope tension automatic balancing device, including installation panel, the installation panel, four corners of the installation panel are all fixedly connected with positioning seat, the side of the installation panel is provided with steel wire rope body, two fixed pulleys are rotatably connected on the installation panel, the steel wire rope body is connected with fixed pulley around, two limit slots are formed in the installation panel, and cross-shaped block is slidably embedded and connected in the two limit slots, the end of the cross-shaped block is fixedly connected with adjusting seat, the end of the adjusting seat is rotatably connected with rope pressing wheel, and the rope pressing wheel is extruded with the steel wire rope body.

[0006] Further, shaft rod is rotatably connected on the outer wall of the installation panel, rotating plate is fixedly connected on the outer wall of the shaft rod, slide rail groove is formed in one side of the rotating plate, two drive sliding blocks are symmetrically slidably embedded and connected in the slide rail groove, and the drive sliding block is fixedly connected with cross-shaped block.

[0007] Further, connecting block is rotatably connected on the opposite side wall of the rotating plate, one end of hydraulic cylinder is fixedly connected on the connecting block, the other end of the hydraulic cylinder is fixedly connected with rotating seat, and the rotating seat is rotatably connected with installation panel.

[0008] Further, the outer wall of the mounting panel is fixedly connected with a protective shell, an inside of the protective shell is fixedly provided with a rope speed sensor, and the rope speed sensor is sleeved with the steel wire rope.

[0009] Further, one side of the mounting panel is provided with a lifting plate, one end of the lifting plate is fixedly connected with an internal threaded block, the internal threaded block is screw-connected with a screw rod, the top end of the screw rod is fixedly connected with an output end of a servo motor, and both ends of the screw rod are rotationally connected with positioning plates fixedly connected with the mounting panel.

[0010] Further, the bottom of the lifting plate is rotationally connected with two linkage rods, the end of each linkage rod is rotationally connected with a rope locking block, the rope locking block is slidably sleeved with a positioning rod, the positioning rod is fixedly connected with the side wall of the mounting panel, and the end of the lifting plate is slidably connected with a limiting plate fixedly connected with the mounting panel.

[0011] Further, the inner wall of each rope locking block is fixedly provided with an anti-skid pad.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. When the tension of the steel wire rope is unbalanced, the two hydraulic cylinders are elongated to drive the connecting block to rotate on the side wall of the rotating plate, so that the rotating plate rotates around the shaft rod, then the two driving sliding blocks slide in the sliding rail groove, and the driving sliding blocks drive the cross-shaped blocks to slide in the limiting groove, so that the two adjusting seat ends of the rope pressing wheels are relatively moved, the rope pressing wheels can press the steel wire rope body to adjust the tension, the steel wire rope body is squeezed and bent, the force is applied to the steel wire rope body with reduced tension, so that the tension of the steel wire rope is increased, and the tension automatic balancing device can be used to adjust the tension of the multiple steel wire ropes to balance.

[0014] 2. The rope speed sensor can detect the increase of the descending speed of the steel wire rope body, when the abnormality of the descending speed of the steel wire rope body is detected, the screw rod is driven to rotate by the output end of the servo motor, then the internal threaded block and the lifting plate are driven to descend, the two linkage rods at the bottom are driven to rotate by the lifting plate, the rope locking blocks are driven to slide on the positioning rods by the end of the linkage rods, so that the two rope locking blocks can squeeze the steel wire rope body, the descending speed of the steel wire rope is slowed down, and the hoist can be conveniently checked until the steel wire rope stops descending. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the overall structure schematic view of the utility model;

[0016] Figure 2 is the overall back structure schematic view of the utility model;

[0017] Figure 3 is the internal structure diagram of the protective shell in the utility model;

[0018] Figure 4 is the driving structure diagram of the rotating plate in the utility model;

[0019] Figure 5 is the connecting structure diagram of the rope locking block in the utility model.

[0020] In the figure: 101, mounting panel; 102, positioning seat; 103, protective shell; 104, steel wire rope body; 105, rope speed sensor; 106, fixed pulley; 107, limiting groove; 201, shaft; 202, rotating plate; 203, sliding rail groove; 204, driving sliding block; 205, cross-shaped block; 206, adjusting seat; 207, rope pressing wheel; 208, connecting block; 209, hydraulic cylinder; 210, rotating seat; 301, lifting plate; 302, linkage rod; 303, rope locking block; 304, non-slip pad; 305, internal thread block; 306, screw rod; 307, positioning plate; 308, servo motor; 309, positioning rod; 310, limiting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5The utility model discloses an elevator steel wire rope tension automatic balancing device, including the mounting panel 101, the four corners of mounting panel 101 are all fixedly connected with the locating seat 102, the one side of mounting panel 101 is provided with the steel wire rope body 104, two fixed pulleys 106 are rotatably connected on mounting panel 101, the steel wire rope body 104 is around with fixed pulley 106, two limiting grooves 107 are seted up on mounting panel 101, the cross type block 205 is slidably embedded and is connected in two limiting grooves 107, the end of cross type block 205 is fixedly connected with the adjusting seat 206, the end of adjusting seat 206 is rotatably connected with the rope pressing wheel 207, and the relative movement of the rope pressing wheel 207 of two adjusting seat 206 ends is driven, so that the rope pressing wheel 207 can press the steel wire rope body 104 and carry out tension adjustment, and the rope pressing wheel 207 is extruded with the steel wire rope body 104, the outer wall of mounting panel 101 is rotatably connected with the axle rod 201, the outer wall of axle rod 201 is fixedly connected with the rotating plate 202, the one side of rotating plate 202 is provided with the slide rail groove 203, two drive sliding blocks 204 are symmetrically slidably embedded and are connected in slide rail groove 203, and drive sliding block 204 is fixedly connected with cross type block 205, the opposite side wall of rotating plate 202 is rotatably connected with the connecting block 208, and the connecting block 208 is rotated on the side wall of rotating plate 202 by the extension of two hydraulic cylinders 209, one end of hydraulic cylinder 209 is fixedly connected on connecting block 208, and the other end of hydraulic cylinder 209 is fixedly connected with rotating seat 210, and rotating seat 210 is rotatably connected with mounting panel 101.

[0023] Specifically, when the tension of the steel wire rope is unbalanced, the connecting block 208 can be rotated on the side wall of the rotating plate 202 by the extension of the two hydraulic cylinders 209, so that the rotating plate 202 can be driven to rotate around the axle rod 201, then the two drive sliding blocks 204 can slide in the slide rail groove 203, and then the drive sliding blocks 204 can drive the cross type block 205 to slide in the limiting groove 107, so that the rope pressing wheel 207 at the end of the two adjusting seats 206 can be driven to move relatively, so that the rope pressing wheel 207 can press the steel wire rope body 104 to adjust the tension, the steel wire rope body 104 is extruded and bent, and the force can be applied to the steel wire rope body 104 with reduced tension, so as to increase the tension of the steel wire rope, and therefore the tension automatic balancing device can be used to adjust the tension of multiple steel wire ropes to balance.

[0024] Embodiment one

[0025] As Figure 5As shown, in the embodiment, the outer wall of the mounting panel 101 is fixedly connected with a protective shell 103, the inside of the protective shell 103 is fixedly provided with a rope speed sensor 105, the rope speed sensor 105 is sleeved with the steel wire rope body 104; one side of the mounting panel 101 is provided with a lifting plate 301, one end of the lifting plate 301 is fixedly connected with an internal threaded block 305, the internal threaded block 305 is screw-connected with a screw rod 306, the top end of the screw rod 306 is fixedly connected with the output end of a servo motor 308, both ends of the screw rod 306 are rotatably connected with positioning plates 307 which are fixedly connected with the mounting panel 101, the output end of the servo motor 308 drives the screw rod 306 to rotate, and then drives the internal threaded block 305 and the lifting plate 301 to descend; the bottom of the lifting plate 301 is symmetrically rotatably connected with two linkage rods 302, the end portions of the two linkage rods 302 are rotatably connected with rope locking blocks 303, the two rope locking blocks 303 are slidably sleeved with positioning rods 309, the end portions of the linkage rods 302 can drive the rope locking blocks 303 to slide on the positioning rods 309, so that the two rope locking blocks 303 can extrude the steel wire rope body 104, the positioning rods 309 are fixedly connected with the side wall of the mounting panel 101, and the end portion of the lifting plate 301 is slidably connected with a limiting plate 310 which is fixedly connected with the mounting panel 101; the inner walls of the two rope locking blocks 303 are fixedly provided with anti-skid pads 304.

[0026] In the embodiment, the rope speed sensor 105 can detect the increase of the descending speed of the steel wire rope body 104, when detecting that the descending of the steel wire rope body 104 is abnormal, the output end of the servo motor 308 drives the screw rod 306 to rotate, and then drives the internal threaded block 305 and the lifting plate 301 to descend, so that the lifting plate 301 drives the two linkage rods 302 at the bottom to rotate, the end portions of the linkage rods 302 can drive the rope locking blocks 303 to slide on the positioning rods 309, so that the two rope locking blocks 303 can extrude the steel wire rope body 104, so that the descending speed of the steel wire rope can be slowed down until the steel wire rope stops descending, thereby facilitating the inspection of the elevator.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0028] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. An automatic balancing device for the tension of a hoist wire rope, characterized in that: The utility model comprises an installation panel (101), wherein the four corners of the installation panel (101) are fixedly connected with positioning seats (102), a steel wire rope body (104) is provided on one side of the installation panel (101), two fixed pulleys (106) are rotatably connected to the installation panel (101), the steel wire rope body (104) and the fixed pulley (106) are wound around each other, two limiting grooves (107) are provided on the installation panel (101), a cross-shaped block (205) is slidably embedded in the two limiting grooves (107), the end of the cross-shaped block (205) is fixedly connected with an adjusting seat (206), the end of the adjusting seat (206) is rotatably connected with a rope pressing wheel (207), and the rope pressing wheel (207) and the steel wire rope body (104) are squeezed together.

2. The automatic balancing device for hoist wire rope tension according to claim 1, characterized in that: A shaft (201) is rotatably connected to the outer wall of the mounting panel (101), a rotating plate (202) is fixedly connected to the outer wall of the shaft (201), a slide rail groove (203) is provided on one side of the rotating plate (202), two driving sliders (204) are symmetrically slidably embedded in the slide rail groove (203), and the driving sliders (204) are fixedly connected to the cross block (205).

3. The automatic balancing device for hoist wire rope tension according to claim 2, characterized in that: The opposite side walls of the rotating plate (202) are rotatably connected to connecting blocks (208), one end of a hydraulic cylinder (209) is fixedly connected to the connecting block (208), and the other end of the hydraulic cylinder (209) is fixedly connected to a rotating seat (210), and the rotating seat (210) is rotatably connected to the mounting panel (101).

4. The automatic balancing device for hoist wire rope tension according to claim 2, characterized in that: A protective shell (103) is fixedly connected to the outer wall of the installation panel (101), a rope speed sensor (105) is fixedly arranged inside the protective shell (103), and the rope speed sensor (105) is sleeved with the steel wire rope body (104).

5. The automatic balancing device for hoist wire rope tension according to claim 2, characterized in that: A lifting plate (301) is provided on one side of the mounting panel (101), one end of the lifting plate (301) is fixedly connected to an internal thread block (305), a screw rod (306) is screwed into the internal thread block (305), the top end of the screw rod (306) is fixedly connected to the output end of the servo motor (308), and both ends of the screw rod (306) are rotatably connected to a positioning plate (307) fixedly connected to the mounting panel (101).

6. The automatic balancing device for hoist wire rope tension according to claim 5, characterized in that: The bottom of the lifting plate (301) is symmetrically connected to two linkage rods (302), the ends of the two linkage rods (302) are both rotatably connected to lock rope blocks (303), and positioning rods (309) are slidably sleeved in the two lock rope blocks (303). The positioning rods (309) are fixedly connected to the side wall of the installation panel (101), and the end of the lifting plate (301) is slidably connected to a limit plate (310) fixedly connected to the installation panel (101).

7. The automatic balancing device for hoist wire rope tension according to claim 6, characterized in that: Anti-slip pads (304) are fixedly arranged on the inner walls of the two rope locking blocks (303).

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