Traction machine with protection structure

Abstract

The traction machine with the protection structure comprises a brake shoe seat and a brake shoe piece, an installation cavity is formed in the brake shoe seat, a pressure sensor is fixedly installed in the installation cavity, and a touch device used for touching the pressure sensor is rotatably installed in the installation cavity; according to the overall arrangement, when the brake shoe piece is abraded to a specified degree, the pressure sensor and the displacement sensor are triggered through the touch shaft in the brake contracting process, the alarm works, so that related personnel are reminded to overhaul and replace the brake shoe piece in time, potential safety hazards are avoided, and therefore the brake shoe piece is prevented from being damaged. Therefore, the traction machine is safer and more reliable in the operation process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of traction machine, especially involves a traction machine with protection structure. BACKGROUND

[0002] The traction machine with protection structure is an elevator driving device with multiple safety protection designs based on traditional traction machine, aiming at improving the safety and reliability of elevator operation.

[0003] If the brake wheel of the driving source is braked to lock, the driving wheel is prevented from rotating when hovering.

[0004] During the braking and locking process, the brake shoe will wear out, and relevant personnel need to conduct regular inspection. If the brake shoe wears out significantly during the inspection window, it will not be detected by relevant personnel in the first time, thereby causing certain safety hazards.

[0005] Therefore, it is necessary to invent a traction machine with protection structure that can send brake shoe wear information to relevant personnel in a timely manner. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the utility model provides a technical scheme for a traction machine with protection structure, which comprises a brake shoe seat and a brake shoe piece, wherein: a mounting cavity is formed in the brake shoe seat, a pressure sensor is fixedly installed in the mounting cavity, and a toucher for touching the pressure sensor is rotatably installed in the mounting cavity.

[0007] The brake shoe piece is detachably installed on the brake shoe seat.

[0008] The toucher is between the pressure sensor and the brake shoe piece.

[0009] The toucher comprises a rotating shaft, a touch shaft, and a torsional spring, both ends of the rotating shaft are elastically rotatably connected between the torsional spring and the mounting cavity, the rotating shaft is fixedly connected with the touch shaft in a perpendicular manner, and the touch shaft is between the pressure sensor and the brake shoe piece.

[0010] A displacement sensor is fixedly installed on the rotating shaft, and the control line of the displacement sensor and the pressure sensor is led out from the outside of the brake shoe seat and electrically connected with the controller and the alarm through the controller.

[0011] A notch corresponding to the touch shaft is formed in the brake shoe piece, and the end of the touch shaft away from the rotating shaft is in the notch.

[0012] A plurality of integral fins are uniformly arranged on the side surface of the brake shoe seat close to the brake shoe piece, the fins are in contact with the brake shoe piece, and a plurality of heat dissipation grooves are formed between the fins and the brake shoe piece.

[0013] The fixing lug is arranged on the outer side of the brake shoe base.

[0014] Compared with the prior art, the brake shoe base has the advantages that:

[0015] The overall structure is arranged, when the brake shoe is worn to a specified degree, the pressure sensor and the displacement sensor are triggered by touching the shaft during the process of holding the brake, the alarm works, thereby reminding the relevant personnel to maintain and replace the brake shoe in time, and safety hazards are avoided, so that the traction machine is more safe and reliable during operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is a schematic diagram of the separation structure of the brake shoe base and the brake shoe of the utility model.

[0018] Figure 3 is a schematic diagram of the toucher structure of the utility model.

[0019] Figure 4 is a schematic diagram of the enlarged structure of the A place of the utility model.

[0020] In the drawing:

[0021] Brake shoe base 1, mounting cavity 2, pressure sensor 3, rotating shaft 4, touching shaft 5, torsional spring 6, displacement sensor 7, brake shoe 8, notch 9, fin 10, mounting hole 11, fixing lug 12, control line 13, heat dissipation groove 14. DETAILED DESCRIPTION

[0022] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0023] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The utility model is further described below in combination with the drawings:

[0025] Embodiments

[0026] Reference Figures 1-3 A traction machine with a protection structure, comprising a brake shoe seat 1 and a brake shoe 8, wherein: a mounting cavity 2 is formed in the brake shoe seat 1, a pressure sensor 3 is fixedly installed in the mounting cavity 2, and a toucher for touching the pressure sensor 3 is rotatably installed in the mounting cavity 2;

[0027] Specifically, the pressure sensor 3 is a resistance type pressure sensor, a piezoelectric sensor or the like;

[0028] The brake shoe 8 is detachably installed on the brake shoe seat 1 by bolts, and when the brake shoe 8 is worn out, the brake shoe 8 can be conveniently disassembled and replaced;

[0029] The toucher is between the pressure sensor 3 and the brake shoe 8, and through the setting of the pressure sensor 3 and the toucher, when the brake shoe 8 is worn to a specified degree, the toucher will contact the brake disc of the traction machine, so that the toucher is displaced, thereby triggering the pressure sensor 3 to alarm.

[0030] In the embodiment, the toucher comprises a rotating shaft 4, a touch shaft 5 and a torsional spring 6, both ends of the rotating shaft 4 are elastically rotatably connected between the torsional spring 6 and the mounting cavity 2, the rotating shaft 4 is fixedly connected with the touch shaft 5 in a perpendicular manner, and the touch shaft 5 is between the pressure sensor 3 and the brake shoe 8;

[0031] The torsion spring 6 controls the distance between the touch shaft 5 and the pressure sensor 3 when the brake shoe 8 is not worn, prevents the touch shaft 5 from contacting the pressure sensor 3, and avoids false alarms.

[0032] In this embodiment, the displacement sensor 7 is fixedly installed on the rotating shaft 4 to cooperate with the pressure sensor 3 for double detection to avoid false alarms. The control line 13 of the displacement sensor 7 and the pressure sensor 3 passes out from the outside of the brake shoe base 1 and is electrically connected to the controller and the alarm through the controller;

[0033] Specifically, the controller uses a single-chip microcomputer, PLC, etc.

[0034] Specifically, the displacement sensor 7 uses an inductive type: Lion Precision, Micro-Epsilon; an optical type: Renishaw, Heidenhain, etc.

[0035] Specifically, the pressure sensor 3 and the displacement sensor 7 are connected to the input end of the PLC, and the alarm is connected to the output end of the PLC.

[0036] In this embodiment, the brake shoe 8 is provided with a notch 9 corresponding to the touch shaft 5. The end of the touch shaft 5 away from the rotating shaft 4 is in the notch 9. Through the arrangement of the notch 9, when the brake shoe 8 is worn to a specified degree, the end of the touch shaft 5 will leak out of the notch 9 and form a certain inclination angle with the peripheral surface of the brake disc of the towing machine. When the brake disc of the towing machine rotates, the end of the touch shaft 5 leaking out of the notch 9 is touched to cause displacement, thereby triggering the pressure sensor 3 and the displacement sensor 7 to alarm the alarm.

[0037] In this embodiment, the brake shoe base 1 is uniformly provided with a plurality of integral fins 10 on the side close to the brake shoe 8. The fins 10 are in contact with the brake shoe 8, and a plurality of heat dissipation grooves 14 are formed between the fins 10 and the brake shoe 8, so that the brake shoe 8 can be better ventilated and cooled during braking.

[0038] In this embodiment, the brake shoe base 1 is provided with a mounting hole 11 penetratingly formed on the brake shoe base 1 for fixing the brake shoe 8, so as to fix the brake shoe 8. An integral fixing lug 12 is arranged on the outside of the brake shoe base 1, so that the brake shoe base 1 can be disassembled between the fixing lug 12 and the brake arm.

[0039] Specifically, during use, the brake shoe base 1 with the brake shoe 8 is fixedly installed on the brake arm through the fixing lug 12 and the bolt.

[0040] When the brake shoe 8 is not worn and is in normal operation, the end of the touch shaft 5 away from the rotating shaft 4 is always in the notch 9 under the action of the torsion spring and will not leak out of the notch 9. At the same time, the touch shaft 5 will not contact the pressure sensor 3.

[0041] When the shoe 8 is worn to a specified degree, one end of the touch shaft 5 will leak out of the gap 9, so that when the traction sheave rotates, the end of the touch shaft 5 leaking out of the gap 9 is touched to cause displacement, thereby triggering the pressure sensor 3 and the displacement sensor 7 to alarm the alarm.

[0042] The technical scheme of the utility model, or the technical scheme of the utility model inspires the person skilled in the art to design similar technical scheme, and reach the above technical effect, all fall into the protection scope of the utility model 。

Claims

1. A traction machine having a protective structure, characterized by: The utility model provides a brake shoe (1) and brake shoe piece (8) including, wherein: the brake shoe (1) is set up with the installation cavity (2) on, the installation cavity (2) is fixedly installed with pressure sensor (3), the installation cavity (2) is rotatably installed with the touch ware of touch pressure sensor (3) use, Brake shoe piece (8) can be detachably installed on brake shoe (1), The touch ware is between pressure sensor (3) and brake shoe piece (8).

2. A machine with a protective structure according to claim 1, characterized in that: The touch ware includes pivot (4), touch shaft (5) and torsional spring (6), both ends of pivot (4) are elastically rotatably connected between installation cavity (2) through torsional spring (6) respectively, touch shaft (5) is between pressure sensor (3) and brake shoe piece (8).

3. A machine with a protective structure according to claim 2, characterized in that: Pivot (4) is fixedly installed with displacement sensor (7), the control line (13) of displacement sensor (7) and pressure sensor (3) is from brake shoe (1) outside and is connected with alarm through controller electrically.

4. The machine with a protection structure according to claim 2, characterized in that: Brake shoe piece (8) is set up with the notch (9) corresponding with touch shaft (5) on, the end of touch shaft (5) away from pivot (4) is in notch (9).

5. A machine with a protective structure according to claim 4, characterized in that: The brake shoe (1) near brake shoe piece (8) one side face evenly is provided with a plurality of integral fin (10), and the fin (10) is contacted between brake shoe piece (8), and the fin (10) is formed with a plurality of heat dissipation grooves (14) between brake shoe piece (8).

6. A machine with a protective structure according to claim 5, characterized in that: The installation hole (11) for fixing brake shoe piece (8) is set up on the brake shoe (1) and is set up with integral fixed lug (12) on the outside of brake shoe (1).

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