Mounting device capable of adjusting elongation of elevator steel wire rope

Abstract

The utility model discloses a mounting device capable of adjusting elongation of an elevator steel wire rope, which comprises a first-stage rope hitch plate placed on a traction machine beam, two ends of the first-stage rope hitch plate are connected with the traction machine beam through a first height adjusting mechanism, a second height adjusting mechanism is mounted on the first-stage rope hitch plate, and the second height adjusting mechanism is connected with the traction machine beam through a second height adjusting mechanism. A first-stage rope hitch plate is installed on the first height adjusting mechanism, a second-stage rope hitch plate is installed on the second height adjusting mechanism, a rope hitch assembly is installed on the second-stage rope hitch plate, and the first-stage rope hitch plate is arranged in a mouth shape. The first height adjusting mechanism can adjust the height of the first-stage rope hitch plate, the second height adjusting mechanism can adjust the height of the second-stage rope hitch plate, the elongation of the steel wire rope can be adjusted without disassembling a collision block or cutting off the steel wire rope, a large amount of labor cost is reduced, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an installation device capable of adjusting the elongation of elevator steel ropes. Background Technique

[0002] As an important indoor transportation tool, the frequent use of elevators has strict requirements on the design life of elevator components. Therefore, there is great pressure on costs. So, reducing costs and increasing efficiency has always been the main working direction of each elevator manufacturer. In addition, to ensure the normal use of elevators and extend the service life of each elevator component, regular maintenance is also essential.

[0003] During the use of the elevator, as Figure 7 shown, the steel rope has been under the action of the tensile force of the car and the counterweight. Therefore, the steel rope will elongate. Especially in the early stage of elevator use, the elongation of the steel rope is particularly obvious. The elongation of the steel rope causes the distance between the counterweight and the buffer to decrease, and there is a risk of direct contact. If there is contact, it will directly affect the operation of the elevator and even pose certain safety hazards. Therefore, during maintenance, it is necessary to check the distance between the counterweight and the buffer and adjust this distance.

[0004] At present, the conventional adjustment method is as follows: First, remove the bumper at the lower end of the counterweight frame. If the steel rope continues to elongate, it is necessary to remove the rope head, retract a section of the steel rope and cut it. If the steel rope continues to elongate, continue to retract the rope and cut it. However, the method of retracting the rope requires lifting the elevator car and the counterweight, and then removing the rope head to retract the rope. Such a method will undoubtedly generate a large amount of labor and costs, and there is a certain degree of danger.

[0005] Therefore, we need to propose an installation device capable of adjusting the elongation of elevator steel ropes to solve the above problems, so that the elongation of the steel rope can be adjusted without disassembling the bumper or cutting the steel rope, effectively reducing the elevator maintenance cost, and at the same time making the maintenance more convenient and safe. Content of the Utility Model

[0006] The purpose of the utility model is to provide an installation device capable of adjusting the elongation of elevator steel ropes, which can adjust the elongation of the steel rope without disassembling the bumper or cutting the steel rope, effectively reducing the elevator maintenance cost, and at the same time making the maintenance more convenient and safe, so as to solve the problems raised in the background technique.

[0007] To achieve the above object, the utility model provides the following technical solution: an installation device capable of adjusting the elongation of an elevator steel wire rope, including a first-stage rope head plate placed on a traction machine beam, both ends of the first-stage rope head plate are connected to the traction machine beam through a first height adjustment mechanism, a second height adjustment mechanism is installed on the first-stage rope head plate, a second-stage rope head plate is installed on the second height adjustment mechanism, a rope head assembly is installed on the second-stage rope head plate, the first-stage rope head plate is arranged in a mouth shape, the lower end of the rope head assembly passes through the first-stage rope head plate and extends below the first-stage rope head plate, and a spirit level is installed on the side wall of the first-stage rope head plate and the side wall of the second-stage rope head plate.

[0008] Preferably, the first height adjustment mechanism includes first-stage adjustment screws inserted at the four corners of the first-stage rope head plate, the lower ends of the first-stage adjustment screws are fixed to the traction machine beam through fixed nuts, two first adjustment nuts are threadedly connected to the first-stage adjustment screws, and the first-stage rope head plate is located between the two first adjustment nuts.

[0009] Preferably, the second height adjustment mechanism includes second-stage adjustment screws inserted at the four corners of the second-stage rope head plate, the lower ends of the second-stage adjustment screws are fixed to the first-stage rope head plate through fixed nuts, second adjustment nuts are threadedly connected to the second-stage adjustment screws, and the second-stage rope head plate is located between the two second adjustment nuts.

[0010] Preferably, the first-stage adjustment screws and the second-stage adjustment screws are arranged in the same way, and the first-stage rope head plate is provided with a first through hole for the first-stage adjustment screws to pass through and for the second-stage adjustment screws to be installed.

[0011] Preferably, the horizontal center line of the second-stage rope head plate and the horizontal center line of the first-stage rope head plate are in the same horizontal plane, and the second-stage rope head plate is provided with a second through hole for the second-stage adjustment screws to be inserted.

[0012] Preferably, the first-stage rope head plate and the second-stage rope head plate are set to be one of a flat plate structure, an H-shaped steel structure, and a plate bending structure.

[0013] Preferably, a plurality of first-stage rope head plates are provided, and adjacent two first-stage rope head plates are connected through a first height adjustment mechanism.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model mainly adjusts the elongation of the steel wire rope through the cooperation between the first-stage rope head plate and the first height adjustment mechanism and the cooperation between the second-stage rope head plate and the second adjustment mechanism. The first height adjustment mechanism can adjust the height of the first-stage rope head plate, and the second height adjustment mechanism can adjust the height of the second-stage rope head plate. It is not necessary to disassemble the bumper or cut the steel wire rope to adjust the elongation of the steel wire rope, which not only reduces a large amount of labor costs but also is safe and reliable.

[0016] 2. Through the cooperation between the first height adjustment mechanism and the second height adjustment mechanism, the installation device of the utility model has a two-stage adjustment effect, providing sufficient adjustment space for the installation device with high adjustment accuracy. The bumper at the lower end of the counterweight can be cancelled, and the height of the counterweight frame can be increased within a certain hoistway space. Therefore, more low-density composite counterweight blocks can be used on the premise of ensuring sufficient counterweight mass. Compared with the high-density steel plate counterweight blocks configured when using the bumper, the installation device of the present invention can achieve a significant cost reduction.

[0017] 3. By installing spirit levels on the first-stage rope head plate and the second-stage rope head plate, the utility model facilitates ensuring that the first-stage rope head plate and the second-stage rope head plate remain horizontal during adjustment, reducing the inclination of the steel wire rope in the hoistway. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the first height adjustment mechanism and the second adjustment mechanism of the utility model before adjustment;

[0019] Figure 2 It is a schematic structural diagram of the first height adjustment mechanism of the utility model after adjustment;

[0020] Figure 3 It is a schematic structural diagram of the first height adjustment mechanism and the second adjustment mechanism of the utility model after both are adjusted;

[0021] Figure 4 It is a schematic structural diagram of the first-stage rope head plate of the utility model;

[0022] Figure 5 It is a schematic structural diagram of the second-stage rope head plate of the utility model;

[0023] Figure 6 It is a schematic structural diagram of the utility model during installation;

[0024] Figure 7 It is a schematic structural diagram of the installation device in the prior art during installation.

[0025] In the figure: 1. First-stage rope socket plate; 2. First-stage adjusting screw; 3. Second-stage rope socket plate; 4. Second-stage adjusting screw; 5. First adjusting nut; 6. Traction machine beam; 7. Rope socket assembly; 8. Second adjusting nut; 9. Level; 10. First through hole; 11. Second through hole; 12. Third through hole; 13. Car; 14. Steel wire rope; 15. Counterweight block; 16. Bumper; 17. Buffer; D. Distance between counterweight and buffer. Detailed implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-6 , the present invention provides a technical solution: an installation device capable of adjusting the elongation of an elevator steel wire rope, including a first-stage rope socket plate 1 placed on a traction machine beam 6. Both ends of the first-stage rope socket plate 1 are connected to the traction machine beam 6 through a first height adjustment mechanism. A second height adjustment mechanism is installed on the first-stage rope socket plate 1. A second-stage rope socket plate 3 is installed on the second height adjustment mechanism. A rope socket assembly 7 is installed on the second-stage rope socket plate 3. The first-stage rope socket plate 1 is arranged in a square shape. The lower end of the rope socket assembly 7 passes through the first-stage rope socket plate 1 and extends below the first-stage rope socket plate 1. Level gauges 9 are installed on the side walls of both the first-stage rope socket plate 1 and the second-stage rope socket plate 3. The height of the first-stage rope socket plate 1 can be adjusted through the first height adjustment mechanism, and the height of the second-stage rope socket plate 3 can be adjusted through the second height adjustment mechanism. The elongation of the steel wire rope 14 can be adjusted without disassembling the bumper 16 or cutting the steel wire rope 14, which not only reduces a large amount of labor costs but also is safe and reliable. Through the cooperation of the first height adjustment mechanism and the second height adjustment mechanism, the installation device has a two-stage height adjustment effect, providing sufficient adjustment space for the installation device with high adjustment accuracy. The bumper 16 at the lower end of the counterweight can be cancelled, and the height of the counterweight frame can be increased in a certain hoistway space, so that more low-density composite counterweight blocks 15 can be used on the premise of ensuring sufficient counterweight mass. Compared with the high-density steel plate counterweight blocks 15 configured when using the bumper 16, the present installation device can achieve a significant cost reduction.

[0028] The first height adjustment mechanism includes first-stage adjustment screws 2 inserted at the four corners of the first-stage rope head plate 1. The lower end of the first-stage adjustment screw 2 is fixed to the traction machine beam 6 by a fixing nut. Two first adjustment nuts 5 are threadedly connected to the first-stage adjustment screw 2, and the first-stage rope head plate 1 is located between the two first adjustment nuts 5. By adjusting the positions of the first adjustment nuts 5 on the first-stage adjustment screw 2, the two first adjustment nuts 5 on the first-stage adjustment screw 2 drive the first-stage rope head plate 1 to move on the first-stage adjustment screw 2. The movement of the first-stage rope head plate 1 drives the second-stage rope head plate 3 and the rope head assembly 7 to move, thereby adjusting the elongation of the rope head assembly 7.

[0029] The second height adjustment mechanism includes second-stage adjustment screws 4 inserted at the four corners of the second-stage rope head plate 3. The lower end of the second-stage adjustment screw 4 is fixed to the first-stage rope head plate 1 by a fixing nut. Second adjustment nuts 8 are threadedly connected to the second-stage adjustment screw 4, and the second-stage rope head plate 3 is located between the two second adjustment nuts 8. By rotating the second adjustment nut 8 threadedly to adjust its position on the second-stage adjustment screw 4, the second adjustment nut 8 drives the second-stage rope head plate 3 to move on the second-stage adjustment screw 4 to adjust the elongation of the rope head assembly 7.

[0030] The first-stage adjustment screw 2 and the second-stage adjustment screw 4 are arranged in the same way. The first-stage rope head plate 1 is provided with a first through hole 10 for the first-stage adjustment screw 2 to pass through and for the second-stage adjustment screw 4 to be installed, which facilitates the installation of the first-stage adjustment screw 2 and the second-stage adjustment screw 4.

[0031] The horizontal center line of the second-stage rope head plate 3 and the horizontal center line of the first-stage rope head plate 1 are in the same horizontal plane. The second-stage rope head plate 3 is provided with a second through hole 11 for the second-stage adjustment screw 4 to be inserted, which facilitates the installation of the rope head assembly 7 in the middle of the first-stage rope head plate 1 and the second-stage rope head plate 3. The second-stage rope head plate 3 is provided with a third through hole 12 for the rope head assembly 7 to be installed, so as to facilitate the installation of the rope head assembly 7 on the second-stage rope head plate 3.

[0032] The first-stage rope head plate 1 and the second-stage rope head plate 3 are set to be one of a flat plate structure, an H-shaped steel structure, and a plate bending structure, so that the first-stage rope head plate 1 and the second-stage rope head plate 3 can select rope head plates with different structures according to actual usage requirements to be applicable to the use of different elevators.

[0033] In order to enable the installation device to have a multi-stage adjustment effect, a plurality of first-stage rope head plates 1 are provided. Adjacent two first-stage rope head plates 1 are connected by the first height adjustment mechanism, so that different-level height adjustments can be made according to actual elevator installation requirements to be applicable to the installation requirements of different elevators.

[0034] AsFigure 6 As shown in the figure, D in the figure is the distance between the counterweight and the buffer. The installation device is installed on the traction machine beam 6. The car 13 is pulled by the steel wire rope 14. When the distance between the counterweight and the buffer 17 becomes smaller, it indicates that the steel wire rope 14 has elongated. At this time, as Figure 2 shown, adjust the first-stage adjusting screw 2 and the first adjusting nut 5 to increase the installation height of the first-stage rope head plate 1. Continuously adjust the installation height of the first-stage rope head plate 1 according to the elongation of the steel wire rope 14 until there is no adjustment margin for the first-stage adjusting screw 2.

[0035] If the steel wire rope 14 continues to elongate, then according to Figure 3 shown, adjust the second-stage adjusting screw 4 and the second adjusting nut 8 to increase the installation height of the second-stage rope head plate 3. Continuously adjust the installation height of the second-stage rope head plate 3 according to the elongation of the steel wire rope 14. Sufficient adjustment space is provided by the first-stage adjusting screw 2 and the second-stage adjusting screw 4. Therefore, during actual maintenance, there is no need to remove the rope head rope winding, which not only reduces a large amount of labor costs but also is safe and reliable.

[0036] In the prior art, the bumper block provided at the lower end of the counterweight frame, as Figure 7 shown, the function is to adjust the distance between the counterweight and the buffer (this distance changes due to the elongation of the steel wire rope). With the bumper block set, the height of the counterweight frame will undoubtedly be reduced within a certain hoistway space, and the usage amount of counterweight blocks will be reduced. In order to ensure sufficient counterweight mass, more high-density and high-cost counterweight blocks need to be used, such as steel plate counterweight blocks, which will greatly increase the elevator cost.

[0037] The utility model utilizes the first-stage adjusting screw 2 and the second-stage adjusting screw 4, which have a large adjustment space and high adjustment precision. The bumper block 16 at the lower end of the counterweight can be cancelled. The height of the counterweight frame can be increased within a certain hoistway space. Thus, more low-density composite counterweight blocks 15 can be used on the premise of ensuring sufficient counterweight mass. Compared with the high-density steel plate counterweight blocks 15 configured when using the bumper block 16, the utility model can achieve a substantial cost reduction.

[0038] The side walls of the first-stage rope head plate 1 and the second-stage rope head plate 3 are provided with embedding grooves for embedding the spirit level 9, and one side of the spirit level 9 is flush with the side wall of the first-stage rope head plate 1. Through the setting of the spirit level 9, it is convenient to ensure that the first-stage rope head plate 1 and the second-stage rope head plate 3 are kept horizontal during adjustment, and reduce the inclination phenomenon of the steel wire rope 14 in the hoistway.

[0039] It should be noted that the spirit level 9 used is a miniaturized cylindrical spirit level. Based on the action of gravity when the liquid is in a horizontal state, when the object is in a horizontal state, the air bubbles in the liquid will be subject to a uniform gravity distribution and thus remain at the center position of the liquid. If the object is tilted, the air bubbles will be subject to a non-uniform gravity effect and thus deviate from the center position of the liquid. By observing the position of the air bubbles, it can be determined whether the object is horizontal, such as the bubble spirit level of model SM-02.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An installation device capable of adjusting the elongation of an elevator wire rope, characterized in that: It comprises a first-stage rope end plate (1) placed on a traction machine beam (6), the two ends of the first-stage rope end plate (1) being connected to the traction machine beam (6) via a first height adjustment mechanism, the first-stage rope end plate (1) being provided with a second height adjustment mechanism, the second-stage rope end plate (3) being provided with a second height adjustment mechanism, the second-stage rope end plate (3) being provided with a rope end assembly (7), the first-stage rope end plate (1) being arranged in a mouth shape, the lower end of the rope end assembly (7) passing through the first-stage rope end plate (1) and extending to the bottom of the first-stage rope end plate (1), the side walls of the first-stage rope end plate (1) and the side walls of the second-stage rope end plate (3) being provided with spirit levels (9).

2. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 1, characterized in that: The first height adjustment mechanism comprises a first-stage adjusting screw (2) inserted at the four corners of the first-stage rope head plate (1), the lower end of the first-stage adjusting screw (2) is fixed to the fixing nut and the traction machine beam (6), two first adjusting nuts (5) are threadedly connected to the first-stage adjusting screw (2), and the first-stage rope head plate (1) is located between the two first adjusting nuts (5).

3. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 2, characterized in that: The second height adjustment mechanism comprises a second-stage adjusting screw (4) inserted into the four corners of the second-stage rope head plate (3), the lower end of the second-stage adjusting screw (4) is fixed to the first-stage rope head plate (1) via a fixing nut, a second adjusting nut (8) is threadedly connected to the second-stage adjusting screw (4), and the second-stage rope head plate (3) is located between the two second adjusting nuts (8).

4. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 3, characterized in that: The first-stage adjusting screw (2) and the second-stage adjusting screw (4) are arranged in the same manner, and the first-stage rope head plate (1) is provided with a first through hole (10) for the first-stage adjusting screw (2) to pass through and for the second-stage adjusting screw (4) to be installed.

5. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 1, characterized in that: The horizontal center line of the second-stage rope end plate (3) and the horizontal center line of the first-stage rope end plate (1) are located in the same horizontal plane, and the second-stage rope end plate (3) is provided with a second through hole (11) for plugging in the second-stage adjusting screw (4).

6. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 1, characterized in that: The first-stage rope head plate (1) and the second-stage rope head plate (3) are configured as one of a flat plate structure, a steel structure and a plate bending structure.

7. The installation device capable of adjusting the elongation of an elevator wire rope according to claim 1, characterized in that: A plurality of first-stage rope head plates (1) are provided, and two adjacent first-stage rope head plates (1) are connected via a first height adjustment mechanism.

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