Elevator band-type brake protection system

Abstract

The utility model discloses an elevator band-type brake protection system, and relates to the technical field of elevators, in particular to an elevator band-type brake protection system which comprises a base and a brake wheel, a pair of brake arms capable of being opened and closed is connected to the base, brake shoes for braking the brake wheel are installed on the inner sides of the brake arms, a fixing frame is fixedly connected to the base, and the fixing frame is fixedly connected to the base. An electromagnetic braking system assembly and a spring braking system assembly are connected to the fixing frame, a connecting piece is fixedly connected to the base, the braking arm is connected with the connecting piece through a shaft pin, the top end, located in the braking arm, of the brake shoe is movably arranged on the braking arm in a sleeving mode, and the brake shoe can rotate with the brake shoe as a rotating shaft. The inner side of the brake shoe can abut against the brake arm. According to the elevator band-type brake protection system, under the elastic force effect of the driving spring, the linkage shaft is driven to move, the linkage shaft can push the brake shoe to rotate, and then the brake shoe can be better attached to the brake wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to an elevator brake protection system. Background Technique

[0002] In the field of elevator operation, the brake is a device for controlling elevator braking. In office buildings with very high floors, the running speed of elevators is faster than that in small office floors. During the rush hours of going to and from work, the elevators are often fully loaded. When running, the brakes are in the open state. When the elevator reaches the designated floor and stops, the brakes close and the elevator stops running. There is a problem in this process; when the elevator is fully loaded, the friction between the brake shoe and the brake wheel needs to be large enough to make the elevator brake smoothly. The large friction also causes great wear on the brake shoe. In this state for a long time, the wear of the brake shoe accelerates, and the gap between the brake shoe and the brake wheel becomes larger and larger, making the friction between the brake shoe and the brake wheel smaller than before, prolonging the braking time, and even causing braking out of control, affecting the normal operation of the elevator and the safety of passengers. For this reason, we have proposed an elevator brake protection system. Content of the Utility Model

[0003] The utility model provides an elevator brake protection system, which solves the problems raised in the above background technique.

[0004] To achieve the above object, the utility model is realized through the following technical solutions: An elevator brake protection system includes a base and a brake wheel. A pair of openable and closable brake arms are connected to the base, and brake shoes for braking the brake wheel are installed on the inner sides of the brake arms. A fixing frame is fixedly connected to the base. An electromagnetic braking system assembly and a spring braking system assembly are connected to the fixing frame. A connecting piece is fixedly connected to the base, and the brake arm is connected to the connecting piece through a pin. The top end of the brake shoe inside the brake arm is movably sleeved on the brake arm, and the brake shoe can rotate around this as a rotating shaft. The inner side of the brake shoe can abut against the brake arm, and the bottom end of the brake shoe inside the brake arm is connected to a spring brake that can push the brake shoe to rotate, and the other end of the spring brake is connected inside the brake arm.

[0005] Optionally, a connecting shaft is fixedly connected to the inner side of the brake arm, and the top end of the brake shoe inside the brake arm is connected to the connecting shaft through a pin.

[0006] Optionally, there is an inclined gap between the top end and the bottom end of the brake shoe and the inner side of the brake arm. When the brake arm is opened, the top end of the brake shoe contacts the inner wall of the adjacent gap, and the brake shoe does not contact the brake wheel.

[0007] Optionally, the spring brake includes a linkage shaft, a push rod, a linkage sleeve, and a driving spring. The linkage shaft is connected to the brake shoe through a pin, and the linkage shaft is fixed to the push rod. One end of the push rod extends into the interior of the linkage sleeve and is movably connected thereto.

[0008] Optionally, one end of the linkage sleeve is connected to the inner wall of the brake arm through a pin, and a driving spring is fixedly connected to the end of the push rod extending into the linkage sleeve. One end of the driving spring is fixed to the inner wall of the linkage sleeve.

[0009] Optionally, an abutting block is fixedly connected to the inner wall of the brake arm, and the abutting block can abut against the brake shoe.

[0010] Optionally, a brake guide rod is fixedly connected to the electromagnetic braking system assembly, and a brake guide member that is not in contact with and sleeved on the brake guide rod is fixedly connected to the top end of the brake arm. A brake spring that can drive the brake arm to brake the brake wheel is connected between the brake guide member and the brake guide rod.

[0011] The present utility model has the following beneficial effects:

[0012] 1. In the elevator brake protection system, under the elastic force of the driving spring, the linkage shaft can push the brake shoe to rotate, so that the brake shoe can fit better with the brake wheel, avoiding the situation that the brake shoe does not fit well with the brake wheel after wear, thus ensuring the braking effect of the brake shoe on the brake wheel.

[0013] 2. In the elevator brake protection system, when the brake arm is opened, the top end of the brake shoe contacts the inner wall of the adjacent gap, and the brake shoe does not contact the brake wheel, so that the brake shoe can be smoothly separated from the brake wheel, ensuring the smooth transmission of the brake wheel.

[0014] 3. In the elevator brake protection system, under the action of the elastic force of the driving spring, the force can be transmitted to the linkage shaft through the push rod, and through the transmission of the linkage shaft, the force that can squeeze the brake shoe and the brake wheel can be given, increasing the friction between the brake shoe and the brake wheel, so that the braking effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic sectional structural diagram of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the connection of the brake arm of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the connection of the brake shoe of the present utility model;

[0019] Figure 5 Schematic structural diagram of the connection of the spring brake of the present utility model;

[0020] Figure 6 Schematic structural diagram of the position A of the present utility model.

[0021] In the figure: 1, base; 2, electromagnetic braking system assembly; 3, brake wheel; 4, brake arm; 5, brake shoe; 6, brake guide rod; 7, brake guide; 8, connecting piece; 9, fixing bracket; 10, brake spring; 11, connecting shaft; 12, abutting block; 13, linkage shaft; 14, push rod; 15, linkage sleeve; 16, driving spring. Specific embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 6 , an elevator brake protection system, including a base 1 and a brake wheel 3. A pair of openable and closable brake arms 4 are connected to the base 1, and brake shoes 5 for braking the brake wheel 3 are installed inside the brake arms 4. The brake wheel 3 can be braked by the brake shoes 5. A fixing bracket 9 is fixedly connected to the base 1, and an electromagnetic braking system assembly 2 and a spring braking system assembly are connected to the fixing bracket 9. When the electromagnetic braking system assembly 2 is started, its spring braking system assembly is compressed, and then the brake wheel 3 can rotate smoothly. When the electromagnetic braking system assembly 2 is powered off, the spring braking system assembly is started to brake the brake wheel 3. The electromagnetic braking system assembly 2 is a prior art and will not be elaborated here. A connecting piece 8 is fixedly connected to the base 1, and the brake arm 4 is connected to the connecting piece 8 through a pin, so that the brake arm 4 can rotate to realize the braking and opening of the brake wheel 3. The top end of the brake shoe 5 inside the brake arm 4 is movably sleeved on the brake arm 4, and the brake shoe 5 can rotate with this as the rotation axis. The inner side of the brake shoe 5 can abut against the brake arm 4. When the brake shoe 5 is not worn, the brake shoe 5 abuts against the brake arm 4, so that the brake arm 4 can smoothly make the brake shoe 5 fit against the brake wheel 3 for braking. And the bottom end of the brake shoe 5 inside the brake arm 4 is connected with a spring brake that can push the brake shoe 5 to rotate. The other end of the spring brake is connected inside the brake arm 4. Under the action of the spring brake, the brake shoe 5 can rotate so that the brake shoe 5 can fit against the brake wheel 3 to realize multi-point braking of the brake wheel 3.

[0024] Please refer to Figures 1 to 6 , a connecting shaft 11 is fixedly connected to the inner side of the brake arm 4. The connecting shaft 11 is connected to the top end of the brake shoe 5 inside the brake arm 4 through a pin, so that the brake shoe 5 can rotate with the connecting shaft 11 as the rotation axis.

[0025] Please refer to Figures 1 to 6 , there is an inclined gap between the top and bottom ends of the brake shoe 5 and the inner side of the brake arm 4. When the brake arm 4 is opened, the top end of the brake shoe 5 contacts the inner wall of the adjacent gap, and the brake shoe 5 does not contact the brake wheel 3, so as to ensure that when the brake arm 4 is opened, the brake wheel 3 can rotate smoothly.

[0026] Please refer to Figures 1 to 6 , the spring brake includes a linkage shaft 13, a push rod 14, a linkage sleeve 15, and a driving spring 16. The linkage shaft 13 is connected to the brake shoe 5 through a pin, so that the linkage shaft 13 can rotate relative to the brake shoe 5, and the linkage shaft 13 is fixed to the push rod 14. One end of the push rod 14 extends into the interior of the linkage sleeve 15 and is movably connected thereto, so that the push rod 14 can slide and extend relative to the linkage sleeve 15.

[0027] Please refer to Figures 1 to 6 , one end of the linkage sleeve 15 is connected to the inner wall of the brake arm 4 through a pin, so that the linkage sleeve 15 can rotate relative to the brake arm 4, and one end of the push rod 14 extending into the linkage sleeve 15 is fixedly connected to a driving spring 16. One end of the driving spring 16 is fixed to the inner wall of the linkage sleeve 15. Under the action of the elastic force of the driving spring 16, the linkage shaft 13 can push the brake shoe 5 to rotate.

[0028] Please refer to Figures 1 to 6 , an abutting block 12 is fixedly connected to the inner wall of the brake arm 4. The abutting block 12 can abut against the brake shoe 5 to limit the brake shoe 5, so that when the brake shoe 5 is not worn, the brake shoe 5 can fit with the brake wheel 3.

[0029] Please refer to Figures 1 to 6 , a brake guide rod 6 is fixedly connected to the electromagnetic brake system assembly 2, and a brake guide member 7 that does not contact and sleeve the brake guide rod 6 is fixedly connected to the top end of the brake arm 4. The brake guide member 7 is sleeved outside the brake guide rod 6 and does not contact the brake guide rod 6, so as to give the brake arm 4 space to rotate and ensure the smooth braking of the brake arm 4. A brake spring 10 that can drive the brake arm 4 to brake the brake wheel 3 is connected between the brake guide member 7 and the brake guide rod 6. Under the action of the elastic force of the brake spring 10, the brake guide member 7 can smoothly drive the brake arm 4 to move, and then the brake shoe 5 brakes.

[0030] In summary, for the elevator brake protection system, during use, when the electromagnetic braking system component 2 is powered off, under the action of the elastic force of the braking spring 10, the braking guide 7 can drive the brake arm 4 to rotate towards the brake wheel 3, so that the brake shoe 5 can contact the brake wheel 3, thereby braking the brake wheel 3. As the brake shoe 5 is continuously used, it wears, and then the top of the brake shoe 5 contacts the brake wheel 3, and there is a gap between the lower part of the brake shoe 5 and the brake wheel 3. At this time, under the action of the elastic force of the driving spring 16, the push rod 14 can push the linkage shaft 13 to move relative to the linkage sleeve 15, and then push the brake shoe 5 to rotate, so that the brake shoe 5 can fit with the brake wheel 3, and under the action of the elastic force of the driving spring 16, the friction force between the brake shoe 5 and the brake wheel 3 is increased, so that the braking effect is better.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Moreover, the terms "including", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to this process, method, article or device.

[0032] 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 principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator brake protection system, comprising a base (1) and a brake wheel (3). A pair of openable and closable brake arms (4) are connected to the base (1), and brake shoes (5) for braking the brake wheel (3) are installed on the inner sides of the brake arms (4). A fixed frame (9) is fixedly connected to the base (1), and an electromagnetic brake system assembly (2) and a spring brake system assembly are connected to the fixed frame (9), characterized in that: A connecting member (8) is fixedly connected to the base (1), and the brake arm (4) is connected to the connecting member (8) by a pin. The top end of the brake shoe (5) inside the brake arm (4) is movably sleeved on the brake arm (4), and the brake shoe (5) can rotate about this as a rotation axis. The inner side of the brake shoe (5) can abut against the brake arm (4), and a spring brake that can push the brake shoe (5) to rotate is connected to the bottom end of the brake shoe (5) inside the brake arm (4), and the other end of the spring brake is connected inside the brake arm (4).

2. The elevator brake protection system according to claim 1, wherein: A connecting shaft (11) is fixedly connected to the inner side of the brake arm (4), and the connecting shaft (11) is connected to the top end of the brake shoe (5) inside the brake arm (4) by a pin.

3. The elevator brake protection system according to claim 2, characterized in that: There is an inclined gap between the top end and the bottom end of the brake shoe (5) and the inner side of the brake arm (4). When the brake arm (4) is opened, the top end of the brake shoe (5) contacts the inner wall of the adjacent gap, and the brake shoe (5) does not contact the brake wheel (3).

4. The elevator brake protection system according to claim 3, characterized in that: The spring brake includes a linkage shaft (13), a push rod (14), a linkage sleeve (15), and a driving spring (16). The linkage shaft (13) is connected to the brake shoe (5) by a pin, and the linkage shaft (13) is fixed to the push rod (14). One end of the push rod (14) extends into the interior of the linkage sleeve (15) and is movably connected thereto.

5. The elevator brake protection system according to claim 4, characterized in that: One end of the linkage sleeve (15) is connected to the inner wall of the brake arm (4) by a pin, and a driving spring (16) is fixedly connected to the end of the push rod (14) extending into the linkage sleeve (15), and one end of the driving spring (16) is fixed to the inner wall of the linkage sleeve (15).

6. The elevator brake protection system according to claim 5, characterized in that: An abutting block (12) is fixedly connected to the inner wall of the brake arm (4), and the abutting block (12) can abut against the brake shoe (5).

7. The elevator brake protection system according to claim 6, characterized in that: A brake guide rod (6) is fixedly connected to the electromagnetic braking system assembly (2), and a brake guide member (7) that is not in contact and sleeved with the brake guide rod (6) is fixedly connected to the top end of the brake arm (4). A brake spring (10) that can drive the brake arm (4) to brake the brake wheel (3) is connected between the brake guide member (7) and the brake guide rod (6).

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