Machine-room-less elevator traction machine installation and anti-inclination structure

Abstract

The utility model belongs to the technical field of elevators, and particularly discloses a machine-room-less elevator traction machine installation and anti-inclination structure which comprises a traction machine beam installed on a counterweight guide rail of an elevator and a traction machine body located on the traction machine beam, and seat plates used for installing the traction machine body are installed at the two ends of the traction machine beam. Damping rubber is arranged between the base plate and the traction machine beam, and a bottom anti-inclination bolt is installed on the rear side of the base plate. Through the cooperation of the bottom anti-inclination bolt, the damping rubber, the top anti-inclination mechanism, the detection switch and the traction machine body, the inclination angle of the traction machine body can be reduced to the maximum extent, the damping effect is effectively guaranteed, the service life of the damping rubber can be prolonged, meanwhile, the steel wire rope and the traction wheel groove are prevented from being abraded, and the service life of the traction machine is prolonged. The service life of the traction wheel and the steel wire rope is effectively prolonged, the toppling risk of the traction machine body is reduced, in addition, the use state of the damping rubber can be monitored in real time through the detection switch, and accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a traction machine installation and anti-tilt structure for a machine room-less elevator. Background Art

[0002] To reduce costs and maximize building space, more and more buildings are eliminating elevator machine rooms and adopting machine-room-less elevator structures. Conventional machine-room-less elevators have both ends of the hoist beam mounted directly to the hoistway wall. This not only wastes hoistway space but also increases costs. Furthermore, direct contact between the hoist beam and the hoistway wall can transmit hoist vibrations to the hoistway wall and even to surrounding residents, impacting their lives. Furthermore, to reduce costs, hoists are becoming increasingly smaller and thinner, increasing the risk of tipping over. To prevent this, anti-tipping devices are often added during installation.

[0003] For example, patent application number 202311707483.4 discloses an elevator traction machine installation arrangement system and a machine room-less elevator, including a traction machine, a traction machine mounting plate, vibration isolation rubber, a support beam, a shoe seat, and a top anti-overturning assembly. The traction machine is connected to the shoe seat through the traction machine mounting plate and the vibration isolation rubber. The shoe seat is fixed to the top of the left and right counterweight guide rails. The top anti-overturning assembly connects the traction machine to the shaft wall. The top anti-overturning assembly includes a limit seat, anti-overturning rubber, and an anti-overturning seat. The limit seat is fixed to the shaft wall, the anti-overturning seat is fixed to the top of the traction machine, and the anti-overturning rubber is installed between the limit seat and the anti-overturning seat. The thickness and installation position of the anti-overturning rubber are such that the preset maximum forward tilt angle of the traction machine is no more than 1.5° when the limit seat is in rigid contact with the anti-overturning seat. This invention has multiple anti-overturning protection measures, which can minimize the risk of overturning during the operation of the traction machine of the machine room-less elevator.

[0004] However, most traction machine anti-tilt devices use elastic elements. This results in the traction machine tilting at a certain angle under the tension of the wire rope during use. This can cause the wire rope to slip out of the groove, and the wire rope will wear unevenly against the side of the rope groove, affecting the service life of the wire rope and traction sheave. At the same time, the shock-absorbing rubber on the traction sheave side is subjected to significantly greater pressure than the shock-absorbing rubber on the side away from the traction force. The uneven force on the rubber will also affect the service life of the shock-absorbing rubber. Therefore, we need to propose a machine room-less elevator traction machine installation and anti-tilt structure to solve the above-mentioned problems. The structure is simple, easy to install, and can effectively extend the service life of the traction sheave, wire rope, and shock-absorbing rubber. Utility Model Content

[0005] The purpose of the utility model is to provide a machine room-less elevator traction machine installation and anti-tilt structure, which has a simple structure and is easy to install. It can effectively extend the service life of the traction wheel, wire rope, and shock-absorbing rubber to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a machine room-less elevator hoist installation and anti-tilt structure, comprising a hoist beam installed on the counterweight guide rail of the elevator and a hoist body located on the hoist beam, seat plates for installing the hoist body are installed at both ends of the hoist beam, and shock-absorbing rubber is provided between the seat plate and the hoist beam, a bottom anti-tilt bolt is installed on the rear side of the seat plate, one end of the bottom anti-tilt bolt passes through the seat plate and is connected to the hoist beam, a top anti-tilt mechanism is installed on the top of the hoist body, and a detection switch is installed on the top anti-tilt mechanism.

[0007] Preferably, mounting seats are fixed at both ends of the traction machine beam, and the mounting seats are fixed to the upper ends of the counterweight guide rails.

[0008] Preferably, the bottom anti-tilt bolt passes through the seat plate and the traction machine beam in sequence from top to bottom, and both the seat plate and the traction machine beam are provided with through holes for the bottom anti-tilt bolt to pass through, and both ends of the bottom anti-tilt bolt are threadedly connected with fixing nuts.

[0009] Preferably, the detection switch includes a switch contact of a switch body, the switch body is fixed to one side of the top anti-tilt mechanism, and there is a distance between the switch contact of the detection switch and the traction machine body.

[0010] Preferably, the top anti-tilt mechanism includes a sliding guide shoe, a sliding guide rail and a third fixed bracket, the sliding guide shoe is installed on the top of the traction machine body, the third fixed bracket is installed on the elevator shaft wall, the sliding guide rail is installed on the third fixed bracket, and the sliding guide shoe is provided with a groove for inserting the sliding guide rail.

[0011] Preferably, the sliding guide shoe includes a mounting bracket and a shoe lining fixed to one side of the mounting bracket, and the groove is located in the middle of the shoe lining.

[0012] Preferably, the sliding guide rail includes a guide rail portion, and both ends of the guide rail portion are provided with limit positions.

[0013] Preferably, the top anti-tilt mechanism includes an adjusting sleeve, one end of the adjusting sleeve is connected to a first rotating pair, and the other end of the adjusting sleeve is connected to a second rotating pair, and the first rotating pair and the second rotating pair are both connected to the adjusting sleeve through a locking nut, and the first rotating pair is installed on the shaft wall, and the second rotating pair is installed on the traction machine body.

[0014] Preferably, the first rotating pair consists of a first fixed bracket and a first adjusting link, one end of the first adjusting link is hinged to the first fixed bracket, the first fixed bracket is installed on the well wall, and the other end of the first adjusting link is threadedly connected to the adjusting sleeve.

[0015] Preferably, the second rotating pair is composed of a second fixed bracket and a second adjusting link, the connection method between the second adjusting link and the second fixed bracket and the adjusting sleeve is the same as the connection method between the first adjusting link and the first fixed bracket and the adjusting sleeve, and the first rotating pair and the second rotating pair are symmetrical with the center of the adjusting sleeve as the axis, and the second fixed bracket is installed on the traction machine body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model can minimize the tilt angle of the traction machine body through the cooperation of the bottom anti-tilt bolt, shock-absorbing rubber, top anti-tilt mechanism, detection switch and traction machine body, effectively ensure the shock absorption effect and extend the service life of the shock-absorbing rubber, while avoiding uneven wear of the wire rope and traction sheave groove, effectively extending the service life of the traction sheave and wire rope, and reducing the risk of the traction machine body tipping. In addition, the detection switch can monitor the use status of the shock-absorbing rubber in real time to avoid accidents.

[0018] 2. The utility model directly installs the traction machine beam on the top of two rows of counterweight guide rails. Compared with the conventional structure in which the counterweight guide rails extend to the top of the shaft, this structure saves guide rails and mounting brackets, reduces costs, and has high vertical support strength.

[0019] 3. The cooperation between the bottom anti-tilt bolt of the utility model and the traction machine body can prevent the rear end of the seat plate from tilting, that is, prevent the traction machine body from tilting forward, while not affecting the shock-absorbing effect of the shock-absorbing rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation structure of Example 1 of the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the bottom anti-tilt bolt of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the top anti-tilt mechanism of Example 1 of the present utility model;

[0023] Figure 4 This is a schematic diagram of the sliding guide structure of the utility model;

[0024] Figure 5 This is a schematic structural diagram of the sliding guide shoe of the utility model;

[0025] Figure 6 This is a schematic diagram of the installation structure of Example 2 of the present utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the top anti-tilt mechanism of Example 2 of the present utility model;

[0027] Figure 8 This is a schematic diagram of the first adjusting connecting rod structure of Example 2 of the present utility model.

[0028] In the figure: 1. Traction machine body; 2. Seat plate; 3. Shock-absorbing rubber; 4. Traction machine beam; 5. Mounting seat; 6. Bottom anti-tilt bolt; 7. Top anti-tilt mechanism; 71. Sliding guide rail; 711. Guide rail part; 712. Limiter; 72. Sliding guide shoe; 721. Shoe lining; 7211. Groove; 722. Mounting bracket; 73. Third fixed bracket; 8. Detection switch; 9. Counterweight guide rail; 74. First rotating pair; 741. First fixed bracket; 742. First adjusting link; 75. Second rotating pair; 751. Second fixed bracket; 752. Second adjusting link; 76. Adjusting sleeve; 77. Locking nut. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] See also Figure 1-5 The present invention provides a technical solution: a traction machine installation and anti-tilt structure for a machine room-less elevator, comprising a traction machine beam 4 installed on the counterweight guide rail 9 of the elevator and a traction machine body 1 located on the traction machine beam 4, wherein seat plates 2 for installing the traction machine body 1 are installed at both ends of the traction machine beam 4, and shock-absorbing rubber 3 is provided between the seat plate 2 and the traction machine beam 4, a bottom anti-tilt bolt 6 is installed on the rear side of the seat plate 2, one end of the bottom anti-tilt bolt 6 passes through the seat plate 2 and is connected to the traction machine beam 4, a top anti-tilt mechanism 7 is installed on the top of the traction machine body 1, and a detection switch 8 is installed on the top anti-tilt mechanism 7, which can minimize the tilt angle of the traction machine body 1, effectively ensure the shock absorption effect and prolong the service life of the shock absorption rubber 3, while avoiding eccentric wear of the wire rope and the traction sheave groove, effectively prolonging the service life of the traction sheave and the wire rope, and reducing the risk of the traction machine body 1 tipping over. In addition, the detection switch 8 can monitor the use status of the shock absorption rubber 3 in real time to avoid accidents.

[0032] Mounting seats 5 are fixed at both ends of the traction machine beam 4, and the mounting seats 5 are fixed to the upper end of the counterweight guide rail 9. Compared with the conventional structure in which the counterweight guide rail 9 extends to the top of the shaft, this structure saves guide rails and mounting brackets, reduces costs, and has high vertical support strength.

[0033] The bottom anti-roll bolt 6 passes through the seat plate 2 and the traction machine beam 4 in sequence from top to bottom, and the seat plate 2 and the traction machine beam 4 are both provided with through holes for the bottom anti-roll bolt 6 to pass through. The two ends of the bottom anti-roll bolt 6 are threadedly connected with fixing nuts, which rest on the upper end surface of the seat plate 2. There is no nut locking on the screw of the bottom anti-roll bolt 6 on the lower end surface of the seat plate 2. The bottom anti-roll bolt 6 and the upper and lower end surfaces of the traction machine beam 4 are locked with fixing nuts, that is, the bottom anti-roll bolt 6 and the traction machine beam 4 are fixed together and cannot move relative to each other. The seat plate 2 can move downward along the bottom anti-roll bolt 6. Because there is a fixing nut limiting the position, the seat plate 2 cannot move upward. Therefore, the anti-roll bolt can prevent the traction machine from tipping forward without affecting the shock-absorbing effect of the shock-absorbing rubber 3.

[0034] The detection switch 8 includes a switch contact of a switch body, and the switch body is fixed on one side of the top anti-tilt mechanism 7. There is a distance between the switch contact of the detection switch 8 and the traction machine body 1. The detection switch 8 can detect the distance from the top surface of the traction machine body 1. When the shock-absorbing rubber 3 is aged or damaged, the distance of the up and down movement of the traction machine body 1 will change abnormally. When the movement distance exceeds the set distance, the detection switch 8 will transmit an abnormal signal to the control system to remind maintenance personnel to conduct timely inspection of the shock-absorbing rubber 3 of the traction machine body 1 to avoid accidents.

[0035] The top anti-tilt mechanism 7 includes a sliding guide shoe 72, a sliding guide rail 71, and a third fixed bracket 73. The sliding guide shoe 72 is mounted on the top of the traction machine body 1, the third fixed bracket 73 is mounted on the elevator shaft wall, and the sliding guide rail 71 is mounted on the third fixed bracket 73. The sliding guide shoe 72 has a groove 7211 for the sliding guide rail 71 to be inserted. The sliding guide shoe 72 cooperates with the sliding guide rail 71 and can slide up and down along the sliding guide rail 71. During elevator operation, the traction machine body 1 can move up and down under the action of the shock-absorbing rubber 3. At this time, the sliding guide shoe 72 moves up and down along the sliding guide rail 71 along with the traction machine body 1.

[0036] The sliding guide shoe 72 includes a mounting bracket 722 and a shoe liner 721 fixed to one side of the mounting bracket 722 . The groove 7211 is located in the middle of the shoe liner 721 to facilitate the sliding guide shoe 72 to move along the sliding guide rail 71 .

[0037] The sliding guide rail 71 includes a guide rail portion 711 , and two ends of the guide rail portion 711 are provided with limit stops 712 , which are used to limit the space for the sliding guide shoe 72 to move up and down.

[0038] Because the top anti-tilt mechanism 7 lacks an elastic element, the horizontal movement distance of the top of the hoist body 1 is very small, or even approaches zero. This means that the hoist body 1 has a very small tilt angle, or even approaches zero, limiting its vertical movement to a nearly vertical direction. Because the traction sheave is subject to the tension of the wire rope, and the center of the sheave does not coincide with the center of gravity of the hoist body 1, the portion of the shock-absorbing rubber 3 closer to the sheave experiences greater pressure, while the portion farther from the sheave experiences less pressure. This results in uneven force distribution on the shock-absorbing rubber 3, which can reduce its service life over time. The top anti-tilt mechanism 7 of the present invention cleverly solves this problem. This structure ensures a more even distribution of force across all the shock-absorbing rubbers 3, extending their service life. Furthermore, because the hoist body 1 has a very small tilt angle, this structure prevents uneven wear of the wire rope and sheave grooves, effectively extending the service life of the traction sheave and wire rope.

[0039] Example 2

[0040] The same points will not be repeated here. The difference from Example 1 is that Figure 6-8 The top anti-tilt mechanism 7 includes an adjusting sleeve 76, one end of the adjusting sleeve 76 is connected to the first rotating pair 74, and the other end of the adjusting sleeve 76 is connected to the second rotating pair 75, and the first rotating pair 74 and the second rotating pair 75 are both connected to the adjusting sleeve 76 through a locking nut 77, and the first rotating pair 74 is installed on the shaft wall, and the second rotating pair 75 is installed on the traction machine body 1.

[0041] The first rotating pair 74 consists of a first fixed bracket 741 and a first adjusting link 742. One end of the first adjusting link 742 is hinged on the first fixed bracket 741. The first fixed bracket 741 is installed on the shaft wall. The other end of the first adjusting link 742 is threadedly connected to the adjusting sleeve 76. The first adjusting link 742 is an external thread structure, and the adjusting sleeve 76 is an internal thread structure. The adjusting sleeve 76 and the first adjusting link 742 are adjusted according to the distance from the traction machine body 1 to the wall, and are locked with a locking nut 77.

[0042] The second rotating pair 75 is composed of a second fixed bracket 751 and a second adjusting link 752. The connection method between the second adjusting link 752 and the second fixed bracket and the adjusting sleeve 76 is the same as the connection method between the first adjusting link 742 and the first fixed bracket and the adjusting sleeve 76. The first rotating pair 74 and the second rotating pair 75 are symmetrical with the center of the adjusting sleeve 76 as the axis, and the second fixed bracket 751 is installed on the winch body 1.

[0043] The first fixed bracket 741 is mounted on the hoistway wall, and the second fixed bracket 751 is mounted on the upper end of the hoist body 1. The first adjustment link is connected to the first fixed bracket 741 to form a first rotational pair 74, and the second adjustment link 752 is connected to the second fixed bracket 751 to form a second rotational pair 75. The first and second adjustment members are respectively connected to the ends of the adjustment sleeve 76 and secured with lock nuts 77. The adjustment sleeve 76 is adjusted to the desired size based on the distance from the hoist body 1 to the hoistway wall and then secured with lock nuts 77. This limits the horizontal movement of the top of the hoist body 1 to a very small distance, or even close to zero. In other words, the tilt angle of the hoist body 1 is very small, or close to zero, so that the hoist body 1 can only move up and down in a nearly completely vertical direction. The first and second rotational pairs 74 and 75 function to enable the up and down movement of the hoist body 1.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine room-less elevator traction machine installation and anti-tilt structure, characterized by: The invention comprises a traction machine beam (4) mounted on a counterweight guide rail (9) of an elevator and a traction machine body (1) located on the traction machine beam (4); seat plates (2) for mounting the traction machine body (1) are mounted at both ends of the traction machine beam (4); a shock-absorbing rubber (3) is arranged between the seat plate (2) and the traction machine beam (4); a bottom anti-tilt bolt (6) is mounted on the rear side of the seat plate (2); one end of the bottom anti-tilt bolt (6) passes through the shock-absorbing rubber (3) and is connected to the traction machine beam (4); a top anti-tilt mechanism (7) is mounted on the top of the traction machine body (1); and a detection switch (8) is mounted on the top anti-tilt mechanism (7).

2. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 1, characterized in that: Mounting seats (5) are fixed at both ends of the traction machine beam (4), and the mounting seats (5) are fixed to the upper ends of the counterweight guide rails (9).

3. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 1, characterized in that: The bottom anti-tilt bolt (6) passes through the seat plate (2) and the traction machine beam (4) in sequence from top to bottom, and both the seat plate (2) and the traction machine beam (4) are provided with through holes for the bottom anti-tilt bolt (6) to pass through, and fixing nuts are threadedly connected at both ends of the bottom anti-tilt bolt (6).

4. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 1, characterized in that: The detection switch (8) comprises a switch contact of a switch body, the switch body is fixed to one side of the top anti-tilt mechanism (7), and there is a distance between the switch contact of the detection switch (8) and the traction machine body (1).

5. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 1, characterized in that: The top anti-tilt mechanism (7) comprises a sliding guide shoe (72), a sliding guide rail (71) and a third fixed bracket (73); the sliding guide shoe (72) is mounted on the top of the traction machine body (1); the third fixed bracket (73) is mounted on the elevator shaft wall; the sliding guide rail (71) is mounted on the third fixed bracket (73); and a groove (7211) for inserting the sliding guide rail (71) is provided on the sliding guide shoe (72).

6. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 5, characterized in that: The sliding guide shoe (72) comprises a mounting bracket (722) and a shoe liner (721) fixed to one side of the mounting bracket (722), and the groove (7211) is located in the middle of the shoe liner (721).

7. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 5, characterized in that: The sliding guide rail (71) comprises a guide rail portion (711), and both ends of the guide rail portion (711) are provided with limit stops (712).

8. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 4, characterized in that: The top anti-tilt mechanism (7) includes an adjusting sleeve (76), one end of the adjusting sleeve (76) is connected to a first rotating pair (74), and the other end of the adjusting sleeve (76) is connected to a second rotating pair (75), and the first rotating pair (74) and the second rotating pair (75) are both connected to the adjusting sleeve (76) through a locking nut (77), and the first rotating pair (74) is installed on the hoistway wall, and the second rotating pair (75) is installed on the traction machine body (1).

9. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 8, characterized in that: The first rotating pair (74) is composed of a first fixed bracket (741) and a first adjusting link (742), one end of the first adjusting link (742) is hinged on the first fixed bracket (741), the first fixed bracket (741) is installed on the well wall, and the other end of the first adjusting link (742) is threadedly connected to the adjusting sleeve (76).

10. The machine room-less elevator traction machine installation and anti-tilt structure according to claim 9, characterized in that: The second rotating pair (75) is composed of a second fixed bracket (751) and a second adjusting link (752). The connection method of the second adjusting link (752) with the second fixed bracket and the adjusting sleeve (76) is the same as the connection method of the first adjusting link (742) with the first fixed bracket and the adjusting sleeve (76). The first rotating pair (74) and the second rotating pair (75) are symmetrical with the center of the adjusting sleeve (76) as the axis. The second fixed bracket (751) is installed on the traction machine body (1).

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