KR102354694B1 - Clamping-type additional braking device for escalator and moving walkway - Google Patents

Abstract

A clamping-type additional braking device for escalators and moving walkways is provided, comprising a channel steel connection part and a shaft connection part. The channel steel connecting portion is fixedly connected to the channel steel. The shaft connecting portion is fixedly connected to the transmission shaft. The channel steel is placed parallel to the transmission shaft. The shaft connecting portion rotates together with the transmission shaft, and the channel steel connecting portion is placed adjacent to the shaft connecting portion. When the transmission shaft rotates in the reverse direction and requires braking, the channel steel connection portion brakes the shaft connection portion, and brakes the transmission shaft. The braking of the channel steel connection part is double braking, and the channel steel and the transmission shaft share the force during braking, so the channel steel is not easy to break, the braking effect is good, and the safety is higher.

Description

CLAMPING-TYPE ADDITIONAL BRAKING DEVICE FOR ESCALATOR AND MOVING WALKWAY

Cross-referencing of related applications

This application claims priority to Chinese Patent Application No. 201910741356.3, entitled "Clamping-Type Additional Braking Device for Escalators and Moving Walkways", filed with the Chinese Intellectual Property Office on August 12, 2019 .

technical field

The present application relates to the technical field of escalators and moving sidewalks, and specifically to a clamping-type additional braking device for escalators and moving sidewalks.

Escalators and moving sidewalks are widely used in public places such as transportation hubs and shopping malls. Due to factors such as heavy traffic or lack of maintenance, escalators and moving sidewalks may fail during operation. When a mechanical malfunction or an electrical malfunction occurs on an escalator or a moving sidewalk, a situation of reverse operation may occur, which can easily injure passengers and those around them. With the widespread use of escalators and moving sidewalks, accidents caused by malfunctions of escalators and moving sidewalks sometimes occur. In order to ensure safe operation of escalators and moving walkways, the braking system needs to be arranged to provide safety protection in case of malfunction. In conventional technology, the motor-braking method is generally applied in braking systems of escalators and moving walkways. A braking device is provided in combination with the motor or is integrated into the motor for braking the motor directly. The motor-braking method has high requirements for the braking device, and the manufacturing difficulty and manufacturing cost are high. The braking device needs to be installed when the motor is installed, and cannot be installed on the existing escalator. In addition, once the brake system fails, the brakes fail at the same time. Therefore, the safety factor is low. In view of the problems associated with motor braking, a braking system in the prior art is provided with an additional braking device for braking the transmission shaft. An additional braking device is installed on the channel steel parallel to the transmission shaft to brake the stair power chain and handrail power chain, and to support the motor braking device to complete the braking, further increasing the safety of the occupants. to protect Additional braking devices may be installed during the manufacturing process of escalators and moving walkways, or they may be installed on produced active or unused escalators and moving walkways. The installation of the additional braking device is flexible and can improve the safety factor at low cost, which has excellent applicability. In summary, in order to further improve the safety factor of escalators and moving sidewalks and to reduce the cost of retrofitting, the structure of the additional brake system is designed to provide additional Further optimization is needed to improve the reliability of the braking system, so that the additional braking system can be installed easily and quickly on escalators and moving sidewalks.

In view of this, the main object of the present application is to provide a clamping-type additional braking device for escalators and moving walkways, comprising a channel steel connecting part and a shaft connecting part. The channel steel connecting portion is fixedly connected to the channel steel. The shaft connecting portion is fixedly connected to the transmission shaft. The channel steel is placed parallel to the transmission shaft. The shaft connecting portion rotates together with the transmission shaft, and the channel steel connecting portion is placed adjacent to the shaft connecting portion. When the transmission shaft rotates in the reverse direction and requires braking, the channel steel connection portion brakes the shaft connection portion, and further brakes the transmission shaft. The braking of the channel steel connection part is double braking, and the channel steel and the transmission shaft share the force during braking, so the channel steel is not easy to break, and the braking effect is excellent.

In order to achieve the above object, a clamping-type additional braking device for escalators and moving walkways, installed in combination with a transmission shaft and channel steel, is provided according to the present application. The transmission shaft is placed parallel to the channel steel. A clamping-type additional braking device for an escalator and a moving walkway comprises a channel steel connecting portion and a shaft connecting portion, the channel steel connecting portion being connected to the channel steel, and the shaft connecting portion being connected to the transmission shaft. The channel steel connecting portion includes a anchoring assembly and a brake assembly, the anchoring assembly being fixedly connected to the channel steel, and the brake assembly being rotatably connected to the anchoring assembly. The shaft connecting portion includes a shaft connecting ring and an outer ring assembly, the shaft connecting ring being fixedly connected to the transmission shaft and lying about the transmission shaft, and the outer ring assembly being fixedly connected to the shaft connecting ring and And it is laid around the shaft connecting ring. When the transmission shaft rotates in the reverse direction, the brake assembly engages the outer ring assembly.

In one embodiment, the fixation assembly includes a first fixation plate, a second fixation plate and two support plates. The first fixing plate and the second fixing plate are respectively positioned on two sides of the channel steel. The first fixing plate is fixedly connected to the second fixing plate. The two supporting plates are perpendicular to the second fixing plate and connected with the second fixing plate. The brake assembly is arranged between and connected to the two support plates.

In one embodiment, the brake assembly comprises two contact hooks, an intermediate block, an electromagnet assembly, a connecting seat, a drive rod, a latching tongue rod group and a latching tongue. Two contact hooks are arranged symmetrically on two sides of the intermediate block and are connected with the intermediate block, and the two contact hooks are arranged between the two support plates. The two contact hooks are respectively rotatably connected to the two support plates. The electromagnet assembly is connected with one contact hook. The connecting sheet is arranged on top of the two contact hooks and connected with the two contact hooks, and the connecting sheet is connected with the electromagnet assembly. The driving rod is connected with the connecting seat, and the driving rod is connected with the locking tongue rod group. The locking tongue rod group rotatably passes through the two contact hooks and the intermediate block. One end of the locking tongue is rotatably connected with the intermediate block, and the other end of the locking tongue has two locking teeth and grooves. The two locking teeth are arranged symmetrically on the two sides of the groove. The locking tongue rod group passes through and connects with the locking tongue. The locking tongue rotates with the rotation of the locking tongue rod group.

In one embodiment, the outer ring assembly includes two grooved rings and two serrated rings. Both the grooved rings and the toothed rings surround and connect with the shaft connecting ring. The two serrated rings are placed adjacently and connected to each other. The two grooved rings are respectively arranged on two sides of the two toothed rings and are individually connected with the two toothed rings. In case the channel steel connection part brakes the shaft connection part, the two contact hooks are caught in the two grooved rings, and the two locking teeth are respectively engaged with the two toothing rings.

In one embodiment, the contact hook rotation shaft is arranged between the two contact hooks. The two contact hooks respectively protrude from the two ends of the contact hook rotating shaft. The two ends of the contact hook rotating shaft are respectively connected with the rotating shaft connecting block. The two ends of the contact hook rotating shaft are respectively rotatably connected with the two rotating shaft connecting blocks. The two rotating shaft connecting blocks are fixedly connected to the two support plates individually.

In one embodiment, the brake assembly includes a compression rod. The compression rod is arranged between the intermediate block and the second fixing plate. The compression rod is connected with the intermediate block and the second fixing plate.

In one embodiment, the connecting sheet has a connecting rod. The connecting rod is connected with the connecting seat by means of the center of the connecting rod as a fulcrum. The connecting rod rotates about its midpoint. One end of the connecting rod is connected with the electromagnet assembly, and the other end of the connecting rod is connected with the driving rod.

In one embodiment, the locking tongue rod group includes a locking tongue rod and a transmission member. The latching tongue rod rotatably passes through the two contact hooks and the intermediate block. The locking tongue rod is coupled to the locking tongue, and the locking tongue rotates with the rotation of the locking tongue rod. One end of the engaging tongue rod extending out of the contact hook is connected with the transmission member. One end of the transmission member is connected with the locking tongue rod, and the other end of the transmission member is connected with the drive rod.

In one embodiment, the shaft connection ring includes a plurality of shaft connection assemblies. A plurality of shaft connection assemblies are arranged between the shaft connection ring and the transmission shaft. A plurality of shaft connection assemblies are uniformly distributed and surround the transmission shaft. The shaft connection ring is fixedly connected to the transmission shaft through a plurality of shaft connection assemblies.

In one embodiment, the shaft connection assembly includes a shaft connection shaft, two locking blocks and two locking nuts. The two fastening blocks are respectively arranged at the two ends of the shaft connecting shaft and surround the shaft connecting shaft. The two fastening nuts are respectively placed in threaded connection with the two ends of the shaft connecting shaft. The two fastening blocks are positioned between the two fastening nuts. The fastening blocks are wedge-shaped blocks, and one surface of the fastening block in contact with the transmission shaft has a projection.

Preferably, the fastening blocks are arranged between the transmission shaft and the groove of the shaft connecting ring in the circumferential direction. A certain clearance is provided between the fastening block and the groove of the shaft connecting ring in the circumferential tangential direction, so that the centerline of the fastening block is parallel to the radial centerline of the groove of the shaft connecting ring, and there is an eccentric distance between the two centerlines do. The direction of the eccentric distance is opposite to the direction of rotation of the transmission shaft during braking by the clamping-type additional braking device. When the clamping-type additional braking device is braking, the frictional force between the transmission shaft and the fastening block tends to move in a direction in which the eccentric distance between the centerline of the fastening block and the radial centerline of the groove of the shaft connecting ring decreases. , and this movement tendency causes a greater positive pressure between the fastening block and the transmission shaft, and thus a greater frictional force is generated between the fastening block and the transmission shaft. In other words, when the clamping-type additional braking device is braking, a frictional self-locking effect is created between the fastening block, the shaft connecting ring and the transmission shaft, thereby making the connection between the shaft connecting ring and the transmission shaft more reliable. to be stable and stable.

Compared with conventional technology, the clamping-type additional braking device for escalators and moving walkways according to the present application has the following advantages: The clamping-type additional braking device adopts the form of double-braking, The braking effect is better, and the safety is higher; The clamping-type additional braking device shares the action force on the transmission shaft during braking, thereby preventing the channel steel from breaking due to excessively large stress, and ensuring the stability of braking; And when a clamping-type additional braking device is connected with the transmission shaft, the transmission shaft need not be subjected to destructive treatment, and the strength and performance of the transmission shaft will not be adversely affected.

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the conventional technology, the drawings used for the description of the embodiments and the conventional technology are briefly introduced below. Obviously, the drawings described below only illustrate some embodiments of the present application, and other drawings may be obtained by those skilled in the art based on these drawings without any creative effort.
1 is a schematic structural diagram of a clamping-type additional braking device for an escalator and a moving walkway according to the present application.
Fig. 2 is a schematic structural diagram of a clamping-type additional braking device for an escalator and a moving walkway according to the present application, having a separate channel steel connection part and a shaft connection part;
3 is a schematic exploded view of a clamping-type additional braking device for an escalator and a moving walkway according to the present application;
4 is a front view of a clamping-type additional braking device for an escalator and a moving walkway according to the present application;
Fig. 5 is a schematic cross-sectional view of the clamping-type additional braking device for the moving walkway and the escalator shown in Fig. 4 taken along the line AA;
6 is a schematic structural diagram of a channel steel connection part of a clamping-type additional braking device for an escalator and a moving walkway according to the present application.
7 is a schematic structural diagram of a part of a braking assembly in a channel steel connection part of a clamping-type additional braking device for an escalator and a moving walkway according to the present application;
8 is a schematic structural diagram of a shaft connection portion of a clamping-type additional braking device for an escalator and a moving walkway according to the present application.
9 is a schematic structural diagram of a shaft connection assembly of a clamping-type additional braking device for an escalator and a moving walkway according to the present application.
Fig. 10 is a schematic diagram of the eccentric distance between the fastening block of the clamping-type additional braking device for the escalator and the moving walkway according to the present application and the groove of the shaft connecting ring;

As shown in FIG. 1 , a clamping-type additional braking device for an escalator and a moving walkway according to the present application is installed in combination with a channel steel 1 and a transmission shaft 2 . The channel steel 1 lies parallel to the transmission shaft 2 . The clamping-type additional braking device for escalators and moving walkways comprises a channel steel connection part 10 and a shaft connection part 20 . The channel steel connecting portion 10 is fixedly connected to the channel steel 1 , the shaft connecting portion 20 is fixedly connected to the transmission shaft 2 , and the shaft connecting portion 20 is connected to the transmission shaft 2 . rotates synchronously with The channel steel connection part 10 lies adjacent to the shaft connection part 20 . When the transmission shaft 2 rotates normally, the shaft connection part 20 rotates smoothly with respect to the channel steel connection part 10 . When an abnormality occurs, for example, when the transmission shaft 2 rotates in the reverse direction or is over-speeded, the channel steel connecting portion 10 is engaged with the shaft connecting portion 20 , and the channel steel connecting portion 10 ) form a position-limiting braking for the shaft connection part 20 , thereby realizing braking for the transmission shaft 2 .

Specifically, as shown in FIG. 2 , the channel steel connecting portion 10 includes a fixing assembly 11 and a braking assembly 12 , and the fixing assembly 11 is fixedly connected to the channel steel 1 , , and the braking assembly 12 is rotatably connected to the fixing assembly 11 . The shaft connecting portion 20 includes a shaft connecting ring 21 and an outer ring assembly 22 , the shaft connecting ring 21 surrounds the transmission shaft 2 and is fixedly connected with the transmission shaft 2 . and the outer ring assembly 22 surrounds the shaft connecting ring 21 and is fixedly connected with the shaft connecting ring 21 . When the channel steel connecting portion 10 brakes the shaft connecting portion 20, the braking assembly 12 prevents the outer ring assembly 22 from rotating, thereby preventing the transmission shaft 2 from rotating. To prevent it, it engages the outer ring assembly 22 .

3 to 8 , the fixing assembly 11 includes a first fixing plate 111 , a second fixing plate 112 , and two supporting plates 113 . The first fixing plate 111 and the second fixing plate 112 are respectively positioned on two sides of the channel steel 1 , and the first fixing plate 111 is moved away from the transmission shaft 2 Located on one side of the channel steel 1 , and the second fixing plate 112 is located on the other side of the channel steel 1 facing the transmission shaft 2 . The first fixing plate 111 is fixedly connected with the second fixing plate 112 through bolts, thereby realizing the fixed connection of the fixing assembly 11 and the channel steel 1 . The two supporting plates 113 lie perpendicular to the second fixing plate 112 and connected with the second fixing plate 112 , and the two supporting plates 113 lie symmetrically with respect to each other. The brake assembly 12 is arranged between the two support plates 113 and is connected with the two support plates 113 .

The brake assembly 12 includes two contact hooks 121 , an intermediate block 122 , an electromagnet assembly 123 , a connecting seat 124 , a drive rod 125 , a locking tongue rod group 126 , a locking tongue ( 127 ), a compression rod 128 , and a sensor mounting plate 129 . The two contact hooks 121 are parallel to each other, are symmetrically arranged on two sides of the intermediate block 122 , and are connected with the intermediate block 122 . The two contact hooks 121 are arranged between the two support plates 113 , and the two contact hooks 121 are respectively rotatably connected with the two support plates 113 . The electromagnet assembly 123 is connected with one contact hook 121 . The connecting sheet 124 is arranged on top of the two contact hooks 121 and connected with the two contact hooks 121 , and the connecting sheet 124 is connected with the electromagnet assembly 123 . The driving rod 125 is connected with the connecting sheet 124 , and the driving rod 125 is also connected with the engaging tongue rod group 126 . The locking tongue rod group 126 rotatably passes through the two contact hooks 121 and the intermediate block 122 . One end of the locking tongue 127 is rotatably connected to the intermediate block 122 , and the other end of the locking tongue 127 has two locking teeth 1271 and a groove 1272 . The two locking teeth 1271 are arranged symmetrically on the two sides of the groove 1272 . The portion of the locking tongue rod group 126 passing through the intermediate block 122 passes through the locking tongue 127 and is connected with the locking tongue 127, and the locking tongue 127 includes the locking tongue rod group ( 126) and rotates with the rotation. The compression rod 128 is arranged between the intermediate block 122 and the second fixing plate 112 , and the compression rod 128 is connected with the intermediate block 122 and the second fixing plate 112 . When the intermediate block 122 is subjected to a force and moves towards the second fixing plate 112 , the compression rod 128 is compressed by the force. When the intermediate block 122 is no longer under force and is not moving towards the second fixing plate 112 , the compression rod 128 returns to its initial state and returns to the initial position of the intermediate block 122 . ) is pushed out. The sensor mounting plate 129 is arranged at the bottom of the intermediate block 122 and extends along a tangential direction of the outer ring assembly 22 . A sensor mounting plate for a plurality of rotational speed sensors to monitor the rotational speed of the transmission shaft 2 and thereby to implement a primary protection of the escalator and to send a signal to cut off the power when an abnormality occurs (129).

The shaft connecting ring 21 further includes a plurality of shaft connecting assemblies 211 . A plurality of shaft connection assemblies 211 are arranged between the shaft connection ring 21 and the transmission shaft 2 . A plurality of shaft connection assemblies 211 are uniformly distributed and surround the transmission shaft 2 . The shaft connection ring 21 is fixedly connected to the transmission shaft 2 through a plurality of shaft connection assemblies 211 . By providing and adjusting a plurality of shaft connection assemblies 211 , the shaft connection ring 21 can be adjusted to fit transmission shafts having different shaft diameters, and the shaft connection ring 21 and the transmission shaft 2 ) can be tightened to the maximum limit to prevent sliding. In addition, the inner ring of the shaft connecting ring 21 may be provided to have a plurality of grooves, and the shaft connecting assemblies 211 are caught in the plurality of grooves and installed in the plurality of grooves, thereby making the connection firm to further improve it.

As shown in FIG. 9 , the shaft connecting assemblies 211 each include a shaft connecting shaft 2111 , two fastening blocks 2112 and two fastening nuts 2113 . The two fastening blocks 2112 are respectively arranged at the two ends of the shaft connecting shaft 2111 and surround the shaft connecting shaft 2111 . The two fastening nuts 2113 are respectively placed in threaded connection with the two ends of the shaft connecting shaft 2111 . The two fastening blocks 2112 are positioned between the two fastening nuts 2113 . The two fastening nuts 2113 individually position-limit the two fastening blocks 2112 . The fastening blocks 2112 are each a wedge-shaped block, and one surface of the fastening block 2112 in contact with the transmission shaft has a protrusion 2112A. The fastening block 2112 presses against the transmission shaft 2 via the protrusion 2112A. By adjusting the size of the fastening block 2112 , the shaft connecting assembly 211 can cooperate with the shaft connecting ring 21 to fit transmission shafts having different shaft diameters. The connection between the shaft connecting ring 21 and the transmission shaft 2 can be tightened to the maximum extent by adjusting the fastening nuts 2113 , thereby improving the tightness of the connection. As shown in FIG. 10 , a certain gap is provided between the groove of the shaft connecting ring 21 and the fastening block 2112 in the circumferential tangential direction, so that the centerline of the fastening block 2112 is is parallel to the radial centerline of the groove, and there is an eccentric distance between the two centerlines. The direction of the eccentric distance is opposite to the direction of rotation of the transmission shaft 2 during braking by the clamping-type additional braking device. When the clamping-type additional braking device is braking, the frictional force between the transmission shaft 2 and the fastening block 2112 is between the centerline of the fastening block 2112 and the radial centerline of the groove of the shaft connecting ring 21 . The eccentric distance causes a tendency of the fastening block 2112 to move in a decreasing direction, and this tendency to move causes a greater positive pressure between the fastening block 2112 and the transmission shaft 2, and thus a larger A friction force is created between the fastening block 2112 and the transmission shaft 2 . That is to say, when the clamping-type additional braking device is braking, a frictional self-locking effect is created between the fastening block 2112, the shaft connecting ring 21 and the transmission shaft 2, whereby the shaft connecting ring ( 21) and make the connection between the transmission shaft (2) more reliable and stable.

The outer ring assembly 22 includes two grooved rings 221 and two toothed rings 222 . The grooved rings 221 and the toothed rings 222 both surround the shaft connecting ring 21 and are connected with the shaft connecting ring 21 . The two serrated rings 222 are placed adjacent to each other and connected to each other, and a projection is provided between the two serrated rings 222 . The two groove rings 221 are respectively arranged on two sides of the two toothed rings 222 and are connected with the two toothed rings 222 individually. When the channel steel connecting portion 10 provides the shaft connecting portion 20, the two contact hooks 121 are caught in the two groove rings 221 to form a friction brake, and the contact hooks are subjected to The force is transmitted to the transmission shaft 2 through the two groove rings 221 . The two locking teeth 1271 of the locking tongue 127 are individually engaged with the teeth of the two toothing rings 222 , thereby forming a position-restriction for the two toothing rings 222 . And to form a brake on the transmission shaft (2). The engagement between the locking teeth 1271 and the toothing rings 222 forms a first brake. The engagement between the contact hooks 121 and the groove rings 221 creates a friction force and forms a second brake. In addition, during the first braking, the force received by the contact hooks is increased, thereby causing the contact hooks 121 to rotate, and further reducing the friction force between the contact hooks 121 and the groove rings 221 . to increase The braking effect is better.

Specifically, the contact hook rotation shaft 1211 is arranged between the two contact hooks 121 . The two contact hooks 121 respectively project from the two ends of the contact hook rotation shaft 1211 . The two ends of the contact hook rotating shaft 1211 are respectively connected to the rotating shaft connecting block 1213 . The two ends of the contact hook rotating shaft 1211 are respectively rotatably connected to the two rotating shaft connecting blocks 1213 . The two rotating shaft connecting blocks 1213 are fixedly connected to the two support plates 113 individually. An intermediate block hole 1212 is provided at the position of each contact hook 121 where the intermediate block 122 is installed. The locking tongue rod group 126 passes through the contact hook 121 through the intermediate block hole 1212 and is screwed into the intermediate block 122 .

The electromagnet assembly 123 includes an electromagnet, an electromagnet drive rod 1231 , and an electromagnet connector 1232 . The electromagnet driving rod 1231 is connected to the connecting sheet 124 , the electromagnet connector 1232 is connected to the contact hook 121 , and the electromagnet is connected to the contact hook 121 through the electromagnet connector 1232 .

The connecting sheet 124 further includes a connecting rod 1241 . The connecting rod 1241 is connected to the connecting sheet 124 by the center of the connecting rod as a fulcrum. The connecting rod 1241 rotates about its midpoint. One end of the connecting rod 1241 is connected to the electromagnet assembly 123 , and the other end of the connecting rod is connected to the driving rod 125 .

A spring 1251 rests around the drive rod 125 . When the drive rod 125 moves toward the connecting seat 124 , the connecting seat 124 compresses the spring 1251 . When the drive rod 125 is no longer under force and is not moving towards the connecting seat 124 , a spring 1251 arranged around the drive rod 125 causes the drive rod 125 to engage the connecting seat 124 . 124) will drive it to move away.

The locking tongue rod group 126 further includes a locking tongue rod 1261 and a transmission member 1262 . The locking tongue rod 1261 rotatably passes through the two contact hooks 121 and the intermediate block 122 . The portion of the locking tongue rod 1261 passing through the intermediate block 122 passes through the locking tongue 127 and is connected with the locking tongue 127 , and the locking tongue 127 includes the locking tongue rod 1261 . rotates with the rotation of One end of the engaging tongue rod 1261 extending out of the contact hook 121 is connected to the transmission member 1262 . One end of the transmission member 1262 is connected to the locking tongue rod 1261 , and the other end of the transmission member is connected to the driving rod 125 . The drive rod 125 drives the transmission member 1262 to rotate, further drives the locking tongue rod 1261 to rotate, and drives the locking tongue 127 to rotate.

5 , 6 and 7 , when the transmission shaft 2 rotates normally, the electromagnet assembly 123 is in an operating state, and neither of the two locking teeth 1271 is No contact with the toothed ring 222 . When the transmission shaft 2 needs to be braked due to abnormal reverse rotation or excessive rotational speed, the electromagnet assembly 123 receives a signal to cut off power, releases a suction force, and a spring 1251 ), drives the connecting rod 1241 to rotate, and then the connecting rod 1241 drives the driving rod 125 to move and rotates the engaging tongue rod group 126 counterclockwise. and the locking tongue 127 also rotates counterclockwise. At this point, the transmission shaft 2, which rotates abnormally counterclockwise, drives the toothed rings 222 to rotate clockwise. The two locking teeth 1271 individually mesh with the teeth of the two toothing rings 222 , and the locking tongue 127 is stressed and prevents the toothing rings 222 from rotating. Meanwhile, the toothing rings 222 push the locking tongue 127 , the intermediate block 122 and the contact hooks 121 to rotate counterclockwise relative to the support plates 113 , and the two The contact hook 121 engages and contacts the two groove rings 221 , and the intermediate block 122 presses the compression rod 128 . The two locking teeth 1271 mesh with the two toothing rings 222 individually to form a brake on the transmission shaft 2 , and the contact hooks 121 , with respect to the transmission shaft 2 . It engages with the groove rings 221 to form another braking, thereby realizing a double-braking. At the same time, a part of the force applied to the channel steel 1 during braking is shared to the transmission shaft 2 by the contact hooks 121 , and the force applied to the channel steel 1 is reduced, which , effectively preventing the channel steel 1 from being broken, and improving the braking effect, reliability, and lifespan of the additional braking device.

Based on the above description of the disclosed embodiments, those skilled in the art can make or use the present application. Many modifications to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Accordingly, the present disclosure is not to be limited to the embodiments disclosed herein, but is to be accorded the widest scope in accordance with the principles and novel features disclosed herein.

Claims (11)

A clamping-type additional braking device for escalators and moving walkways, installed in combination with a transmission shaft and a channel steel, and wherein the transmission shaft runs parallel to the channel steel,
A clamping-type additional braking device for an escalator and a moving walkway comprises a channel steel connecting portion and a shaft connecting portion, the channel steel connecting portion being connected to the channel steel, and the shaft connecting portion being connected to the transmission shaft. connected; the channel steel connecting portion includes a securing assembly and a braking assembly, the securing assembly being fixedly connected to the channel steel, and the braking assembly being rotatably connected to the securing assembly; The shaft connecting portion includes a shaft connecting ring and an outer ring assembly, the shaft connecting ring being fixedly connected to the transmission shaft and lying about the transmission shaft, and the outer ring assembly being fixed to the shaft connecting ring connected to and lying around the shaft connecting ring; and when the transmission shaft rotates in the reverse direction, the brake assembly engages the outer ring assembly. The method of claim 1,
the fixing assembly includes a first fixing plate, a second fixing plate and two supporting plates; the first fixing plate and the second fixing plate are respectively located on the two sides of the channel steel; the first fixing plate is fixedly connected to the second fixing plate; the two supporting plates are perpendicular to the second fixing plate and connected to the second fixing plate; and the brake assembly is arranged between and connected with the two support plates. 3. The method of claim 2,
the brake assembly includes two contact hooks, an intermediate block, an electromagnet assembly, a connecting seat, a drive rod, a locking tongue rod group and a locking tongue; the two contact hooks are symmetrically arranged on two sides of the intermediate block and connected with the intermediate block, and the two contact hooks are arranged between the two support plates; the two contact hooks are respectively rotatably connected to the two support plates; the electromagnet assembly is connected with one contact hook; the connecting sheet is arranged on top of the two contact hooks and connected with the two contact hooks, and the connecting sheet is connected with the electromagnet assembly; the driving rod is connected with the connecting seat, and the driving rod is connected with the locking tongue rod group; the locking tongue rod group is configured to rotatably pass through the two contact hooks and the intermediate block; one end of the locking tongue is rotatably connected to the intermediate block, and the other end of the locking tongue has two locking teeth and grooves; the two locking teeth are symmetrically arranged on the two sides of the groove; the locking tongue rod group is configured to pass through the locking tongue and is connected to the locking tongue; and the locking tongue is configured to rotate with rotation of the locking tongue rod group. 4. The method of claim 3,
the outer ring assembly includes two grooved rings and two serrated rings; the grooved rings and the toothed rings both surround and connect with the shaft connecting ring; the two serrated rings are placed adjacently and connected to each other; said two grooved rings are respectively arranged on two sides of said two toothed rings and are individually connected with said two toothed rings; and when the channel steel connecting portion brakes the shaft connecting portion, the two contact hooks are caught in the two grooved rings, and the two retaining teeth are individually engaged with the two toothed rings. Clamping-type additional brakes for walkways, escalators and moving walkways. 4. The method of claim 3,
a contact hook rotating shaft is arranged between the two contact hooks; the two contact hooks respectively project from the two ends of the contact hook rotating shaft; the two ends of the contact hook rotating shaft are respectively connected to the rotating shaft connecting block; the two ends of the contact hook rotating shaft are respectively rotatably connected to the two rotating shaft connecting blocks; and the two rotating shaft connecting blocks are respectively fixedly connected with the two supporting plates. 4. The method of claim 3,
wherein the brake assembly comprises a compression rod, the compression rod arranged between the intermediate block and the second fixed plate, and the compression rod is connected to the intermediate block and the second fixed plate; and Clamping-type additional braking device for moving walkways. 4. The method of claim 3,
The connecting sheet has a connecting rod, the connecting rod being connected to the connecting sheet by a center of the connecting rod as a fulcrum, the connecting rod being configured to rotate about a midpoint thereof, the connecting rod and one end of the connecting rod is connected with the electromagnet assembly and the other end of the connecting rod is connected with the driving rod. 4. The method of claim 3,
The locking tongue rod group includes a locking tongue rod and a transmission member, the locking tongue rod being configured to rotatably pass through the two contact hooks and the intermediate block, the locking tongue rod including the locking tongue and connected, wherein the engaging tongue is configured to rotate with rotation of the engaging tongue rod, and one end of the engaging tongue rod extending out of the contact hook is connected with the transmission member and one end of the transmission member is connected with the locking tongue rod, and the other end of the transmission member is connected with the drive rod. The method of claim 1,
The shaft connection ring includes a plurality of shaft connection assemblies, the plurality of shaft connection assemblies are arranged between the shaft connection ring and the transmission shaft, the plurality of shaft connection assemblies are uniformly distributed, and A clamping-type additional braking device for escalators and moving walkways surrounds a transmission shaft, and wherein the shaft connection ring is fixedly connected with the transmission shaft through the plurality of shaft connection assemblies. 10. The method of claim 9,
The shaft connecting assembly comprises a shaft connecting shaft, two fastening blocks and two fastening nuts, wherein the two fastening blocks are respectively arranged at the two ends of the shaft connecting shaft and around the shaft connecting shaft; , two locking nuts, respectively, are placed in screw connection with the two ends of the shaft connecting shaft, the two locking blocks being positioned between the two locking nuts, the locking blocks each being wedge- A clamping-type additional braking device for escalators and moving walkways, which is a shaped block, and wherein one surface of the fastening block in contact with the transmission shaft has a projection. 11. The method of claim 10,
A gap is provided between the groove of the shaft connecting ring and the fastening block in a circumferential tangential direction, the centerline of the fastening block being parallel to the radial centerline of the groove of the shaft connecting ring, and between the two centerlines An eccentric distance exists; and when the clamping-type additional braking device is braking, a friction self-locking effect is created between the shaft connecting ring, the fastening block, and the transmission shaft, whereby the friction between the shaft connecting ring and the transmission shaft A clamping-type additional braking device for escalators and moving walkways, which makes the connection more reliable and stable.

Images