Escalator driving device

Abstract

The utility model discloses an escalator driving device and aims to solve the problems that in the prior art, all driving devices are installed inside an escalator truss, the space needed for arranging the driving devices on the escalator truss is increased, and the overhauling efficiency of the driving devices is reduced. According to the technical scheme, the escalator comprises an escalator truss, a driving main shaft arranged in the escalator truss and a rotation driving device arranged outside the escalator truss, and the rotation driving device and the driving main shaft are connected through a transmission assembly. According to the escalator driving device, the escalator driving device is divided into two parts, one part is the rotary driving device, and the other part is the other part of the escalator driving device except the rotary driving device. The rotation driving device is arranged on the outer side of the escalator truss, the installation space in the escalator truss is saved, and compared with the prior art, the internal space of the escalator truss is reduced, so that the structure of the escalator truss is more compact.

Description

Technical Field

[0001] The utility model relates to the technical field of escalator driving devices, and more specifically, to an automatic escalator driving device. Background Art

[0002] The driving device of the passenger boarding ladder is usually set at the bottom of the escalator. This is because if the driving device is set at the top of the escalator, the torque on the escalator will increase. In the prior art, for the sake of aesthetics, the driving device of the escalator is usually set as a whole inside the escalator truss, but this undoubtedly increases the space required for arranging the driving device at the bottom of the escalator. In addition, when the driving device is completely set inside the escalator truss, whether it is to inspect or repair the motor or other driving device structures, the escalator truss needs to be opened for inspection, which undoubtedly reduces the efficiency of inspection and maintenance. Utility Model Content

[0003] The utility model overcomes two deficiencies in the prior art: (1) the drive device is completely installed inside the escalator truss, which not only increases the space required for arranging the drive device on the escalator truss, but also reduces the efficiency of the drive device maintenance; (2) in the prior art, the reverse rotation of the steps, step sprockets, and step chains is mainly achieved by reversing the drive motor, and once the drive motor has a problem, it is difficult to achieve the reverse rotation of the steps, step sprockets, and step chains; an automatic escalator drive device is provided, which, by arranging part of the structure outside the escalator truss, makes the space required for arranging the drive device smaller, and the part of the drive device located outside the escalator truss does not need to open the escalator truss, and the external part of the drive device can be directly inspected and maintained, thereby improving the efficiency of inspection and maintenance. In addition, by arranging a manual winch structure, in the event of a problem with the motor, the reverse rotation of the steps, step sprockets, and step chains can also be achieved manually.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an escalator drive device, comprising: an escalator truss, a driving spindle arranged inside the escalator truss and a rotating drive device arranged outside the escalator truss, the rotating drive device and the driving spindle are connected through a transmission assembly.

[0005] The utility model divides the escalator drive device into two parts, one part is the rotary drive device, and the other part is the part of the escalator drive device other than the rotary drive device. By placing the rotary drive device on the outside of the escalator truss, the installation space inside the escalator truss can be saved. Compared with the prior art, the internal space of the escalator truss is reduced, making the escalator truss structure more compact. In addition, since the rotary drive device is installed on the outside of the escalator truss, when the rotary drive device is inspected and repaired, it is not necessary to disassemble the escalator truss, and the rotary drive device can be directly inspected and repaired, thereby improving the efficiency of the inspection and repair of the escalator. Moreover, by arranging the rotary drive device on the outside of the escalator truss, the rotary drive device can have a more spacious heat dissipation space, improve the heat dissipation efficiency of the rotary drive device, and further improve the service life of the rotary drive device.

[0006] Preferably, the transmission assembly includes a driving sprocket, a driven sprocket and a chain; the driving sprocket is fixedly arranged at the output end of the rotary drive device, the driven sprocket is fixedly arranged on the driving spindle, and the chain is wound between the driving sprocket and the driven sprocket.

[0007] The transmission is carried out by the cooperation of the driving sprocket, the driven sprocket and the chain. Since the driven sprocket can be arranged at any position on the driving main shaft, the position for installing the driven sprocket can be selected according to the actual specific situation, and the arrangement is flexible.

[0008] Preferably, the driven sprocket is fixedly arranged at one end of the driving spindle.

[0009] The driven sprocket is fixedly arranged at one end of the driving main shaft, which can shorten the output shaft of the rotary driving device and reduce the torque applied to the output shaft.

[0010] Preferably, the driven sprocket is fixedly arranged in the middle part of the driving spindle.

[0011] When the driven sprocket is fixedly arranged in the middle part of the driving spindle, when the driving spindle rotates, the torques received by the driving spindles on both sides of the driving driven sprocket are equal. Compared with the case where the driven sprocket is arranged at one end of the driving spindle, the torque received by the driving spindle in this embodiment is smaller, thereby increasing the service life of the driving spindle.

[0012] Preferably, the transmission assembly comprises a flexible inelastic element coupling; two ends of the flexible inelastic element coupling are respectively connected to the drive spindle and the output end of the rotary drive device.

[0013] The rotary drive device and the driving main shaft are directly connected through the flexible inelastic element coupling, which is easy to install, and the flexible inelastic element coupling is also arranged on the outside of the escalator truss, which can save space in the escalator truss.

[0014] Preferably, the flexible inelastic element coupling is a universal joint coupling.

[0015] The universal joint coupling has the characteristics of simple structure and easy installation.

[0016] Preferably, the rotary drive device is a hydraulic motor.

[0017] The hydraulic motor can provide a large torque to enable the main shaft to rotate, and has the characteristics of large torque and stable power.

[0018] Preferably, the driving spindle is provided with a manual turning structure for facilitating the rotation of the driving spindle.

[0019] The driving spindle can also be rotated by the rotary drive device. However, once the rotary drive device fails, that is, the rotary drive device is unavailable, the driving spindle can be rotated by setting a rotating manual winch structure, so that the driving spindle can drive the step sprocket to rotate, and the step sprocket can drive the step chain to rotate, thereby driving the steps on the step chain to move. When an emergency occurs, the manual winch structure can be manually rotated to avoid secondary injuries.

[0020] Preferably, the manual turning structure is a manual turning wheel.

[0021] The diameter of the manual turning wheel is larger than the diameter of the driving spindle. Since the diameter of the manual turning wheel is larger than the driving spindle, it is more labor-saving when rotating the driving spindle.

[0022] Compared with the prior art, the beneficial effect of the utility model is as follows: the present application divides the escalator drive device into two parts, one part is the rotary drive device, and the other part is the part of the escalator drive device other than the rotary drive device. By placing the rotary drive device on the outside of the escalator truss, the installation space inside the escalator truss can be saved. Compared with the prior art. The internal space of the escalator truss is reduced, making the escalator truss structure more compact. In addition, since the rotary drive device is installed on the outside of the escalator truss, when the rotary drive device is inspected and repaired, it is not necessary to disassemble the escalator truss, and the rotary drive device can be directly inspected and repaired, thereby improving the efficiency of the escalator inspection and repair. Moreover, by arranging the rotary drive device on the outside of the escalator truss, the rotary drive device can have a wider heat dissipation space, improve the heat dissipation efficiency of the rotary drive device, and then improve the service life of the rotary drive device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the utility model.

[0024] Figure 2 It is a side view of the utility model.

[0025] Figure 3 The utility model is a structural schematic diagram when the driving sprocket, the driven sprocket and the chain are arranged outside the escalator truss.

[0026] Figure 4 The utility model is a schematic structural diagram in which a driving sprocket, a driven sprocket and a chain are arranged at the middle position of a driving main shaft.

[0027] Figure 5 It is a structural schematic diagram of Example 4 of the present utility model.

[0028] Figure 6 yes Figure 5 Side view of the .

[0029] Figure 7 It is a structural schematic diagram of the turning rod and the driving main shaft of the utility model when they are matched.

[0030] In the figure: 1, escalator truss, 11, mounting truss, 2, driving spindle, 21, step sprocket, 3, rotation drive device, 31, driving sprocket, 32, driven sprocket, 33, chain, 34, flexible inelastic element coupling, 4, manual turning wheel, 41, turning rod. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Example 1: Reference Figures 1 to 7 As shown, an escalator driving device comprises: an escalator truss 1, a driving spindle 2 arranged inside the escalator truss 1 and a rotary driving device 3 arranged outside the escalator truss 1, wherein the rotary driving device 3 and the driving spindle 2 are connected via a transmission assembly.

[0033] In this embodiment, the escalator drive device is divided into two parts, one part is the rotary drive device 3, and the other part is the part of the escalator drive device other than the rotary drive device 3. By placing the rotary drive device 3 on the outside of the escalator truss 1, the installation space inside the escalator truss 1 can be saved. Compared with the prior art, the internal space of the escalator truss 1 is reduced, making the structure of the escalator truss 1 more compact. In addition, since the rotary drive device 3 is installed on the outside of the escalator truss 1, when the rotary drive device 3 is inspected and repaired, it is not necessary to disassemble the escalator truss 1, and the rotary drive device 3 can be directly inspected and repaired, thereby improving the efficiency of the escalator inspection and repair. In addition, by arranging the rotary drive device 3 on the outside of the escalator truss 1, the rotary drive device 3 can have a better heat dissipation space, improve the heat dissipation efficiency of the rotary drive device 3, and then improve the service life of the rotary drive device 3.

[0034] Example 2: Reference Figures 1 to 7 As shown, an escalator driving device comprises: an escalator truss 1, a driving spindle 2 arranged inside the escalator truss 1 and a rotary driving device 3 arranged outside the escalator truss 1, wherein the rotary driving device 3 and the driving spindle 2 are connected via a transmission assembly.

[0035] The escalator truss 1 includes mounting trusses 11 arranged on both sides of the escalator in the width direction, and the mounting trusses 11 on both sides are provided with bearing seats, and the two ends of the driving main shaft 2 are respectively located in the bearing seats on the mounting trusses 11 on both sides, so that the driving main shaft 2 can rotate freely. The driving main shaft 2 is respectively provided with a step sprocket 21 near its two ends.

[0036] The transmission assembly in this embodiment includes a driving sprocket 31, a driven sprocket 32 ​​and a chain 33; the driving sprocket 31 is fixedly arranged at the output end of the rotation drive device 3, the driven sprocket 32 ​​is fixedly arranged on the driving main shaft 2, and the chain 33 is wound between the driving sprocket and the driven sprocket 32.

[0037] like Figure 1 As shown, the driving sprocket 31, the driven sprocket 32 ​​and the chain 33 are fixedly arranged inside the mounting truss 11. The output end of the rotary drive device 3 passes through the escalator truss 1 and enters the escalator truss 1 and is fixedly connected to the driving sprocket 31. The driven sprocket 32 ​​in this embodiment is fixedly arranged at one end of the driving main shaft 2.

[0038] In one embodiment, if Figure 3As shown, the driving sprocket 31, the driven sprocket 32 ​​and the chain 33 are arranged on the outside of the escalator truss 1. When the driving sprocket 31, the driven sprocket 32 ​​and the chain 33 are arranged on the outside of the escalator truss 1, the driving spindle 2 extends to the outside of the mounting truss 11 to the outside of the escalator truss 1, and the driven sprocket 32 ​​is fixedly arranged at the extended part of the driving spindle 2. By arranging the driving sprocket, the driven sprocket 32 ​​and the sprocket on the outside of the escalator truss 1, the space inside the escalator truss 1 can be further reduced, making the overall structure more compact.

[0039] In one embodiment, the rotary drive device 3 is a hydraulic motor. The hydraulic motor can provide a large torque to enable the main shaft to rotate, and has the characteristics of large torque and stable power. The hydraulic motor has a locking function.

[0040] In addition, a manual winch structure is provided on the driving spindle 2 for facilitating the rotation of the driving spindle 2. The driving spindle can also be rotated in the direction by rotating the driving device. However, once the rotating driving device fails, that is, the rotating driving device is unavailable, the driving spindle 2 can be rotated by rotating the manual winch structure, so that the driving spindle 2 can rotate with the step sprocket 21, and the step sprocket 21 can drive the step chain to rotate, thereby driving the steps on the step chain to move. When an emergency occurs, the manual winch structure can be operated to avoid secondary injuries. For example, when a passenger's belongings are caught between the steps and the escalator railing, the manual winch structure can be manually rotated to make the steps move in reverse, so that the items on the steps and escalator railing brackets can be taken out, thereby avoiding secondary injuries.

[0041] In one embodiment, the manual turning structure may be disposed on the driving spindle 2 and have a diameter larger than that of the structure on the driving spindle 2. Figure 7 As shown, a plurality of turning rods 41 may be provided in the circumferential direction of the driving spindle 2 . The turning rods 41 are provided along the circumferential direction of the driving spindle 2 , and the turning rods 41 are provided along the radial direction of the driving spindle 2 .

[0042] In one embodiment, if Figure 1 or Figure 3 or Figure 4 or Figure 5 As shown, the manual turning structure is a manual turning wheel 4. The diameter of the manual turning wheel 4 is larger than the driving spindle 2. Since the diameter of the manual turning wheel 4 is larger than the driving spindle 2, it is more labor-saving when rotating the driving spindle 2.

[0043] In this embodiment, the escalator drive device is divided into two parts, one part is the rotary drive device 3, and the other part is the part of the escalator drive device other than the rotary drive device 3. By placing the rotary drive device 3 on the outside of the escalator truss 1, the installation space inside the escalator truss 1 can be saved. Compared with the prior art, the internal space of the escalator truss 1 is reduced, making the structure of the escalator truss 1 more compact. In addition, since the rotary drive device 3 is installed on the outside of the escalator truss 1, when the rotary drive device 3 is inspected and repaired, it is not necessary to disassemble the escalator truss 1, and the rotary drive device 3 can be directly inspected and repaired, thereby improving the efficiency of the escalator inspection and repair. In addition, by arranging the rotary drive device 3 on the outside of the escalator truss 1, the rotary drive device 3 can have a better heat dissipation space, improve the heat dissipation efficiency of the rotary drive device 3, and then improve the service life of the rotary drive device 3.

[0044] Embodiment 3: The structure of this embodiment is similar to that of embodiment 2, except that Figure 4 As shown, the driven sprocket 32 ​​is fixedly arranged in the middle of the driving spindle 2. When the driven sprocket 32 ​​is fixedly arranged in the middle of the driving spindle 2, when the driving spindle 2 rotates, the driving spindle 2 on both sides of the driven sprocket 32 ​​is subjected to the same torque. Compared with the case where the driven sprocket 32 ​​is arranged at one end of the driving spindle 2, the torque subjected to the driving spindle 2 in this embodiment is smaller, thereby improving the service life of the driving spindle 2.

[0045] Example 4: Reference Figures 5 to 7 As shown, an escalator driving device comprises: an escalator truss 1, a driving spindle 2 arranged inside the escalator truss 1 and a rotary driving device 3 arranged outside the escalator truss 1, wherein the rotary driving device 3 and the driving spindle 2 are connected via a transmission assembly.

[0046] The escalator truss 1 includes mounting trusses 11 arranged on both sides of the escalator in the width direction, and the mounting trusses 11 on both sides are provided with bearing seats, and the two ends of the driving main shaft 2 are respectively located in the bearing seats on the mounting trusses 11 on both sides, so that the driving main shaft 2 can rotate freely. The driving main shaft 2 is respectively provided with a step sprocket 21 near its two ends.

[0047] like Figure 5 and Figure 6 As shown, the transmission assembly includes a flexible inelastic element coupling 34; both ends of the flexible inelastic element coupling 34 are respectively connected to the output ends of the driving main shaft 2 and the rotating driving device 3. The rotating driving device 3 and the driving main shaft 2 are directly connected through the flexible inelastic element coupling 34. It has the characteristics of convenient installation, and the flexible inelastic element coupling 34 is also arranged on the outside of the escalator truss 1, which can save space in the escalator truss 1.

[0048] In one embodiment, the flexible inelastic element coupling 34 is a universal joint coupling.

[0049] In one embodiment, the flexible inelastic element coupling 34 is a roller chain coupling.

[0050] In one embodiment, the rotary drive device 3 is a hydraulic motor. The hydraulic motor can provide a large torque to enable the main shaft to rotate, and has the characteristics of large torque and stable power. The hydraulic motor has a locking function. Of course, the rotary drive device 3 can also be driven by a drive motor or other types of motors, motors and other devices. The rotary drive device 3 can also be composed of a drive motor and a planetary reducer, all of which are within the protection scope of this application.

[0051] In addition, a manual winch structure is provided on the driving spindle 2 for facilitating the rotation of the driving spindle 2. By rotating the manual winch structure, the driving spindle 2 can be rotated, so that the driving spindle 2 can drive the step sprocket 21 to rotate, and the step sprocket 21 can drive the step chain to rotate, thereby driving the steps on the step chain to move. When an emergency occurs, the manual winch structure can be operated to avoid secondary injuries. For example, when a passenger's belongings are caught between the steps and the escalator railing, the manual winch structure can be manually rotated to make the steps move in reverse, so that the items on the steps and escalator railing brackets can be taken out, thereby avoiding secondary injuries.

[0052] In one embodiment, the manual turning structure may be disposed on the driving spindle 2 and have a diameter larger than that of the structure on the driving spindle 2. Figure 7 As shown, a plurality of turning rods 41 may be provided in the circumferential direction of the driving spindle 2 . The turning rods 41 are provided along the circumferential direction of the driving spindle 2 , and the turning rods 41 are provided along the radial direction of the driving spindle 2 .

[0053] In one embodiment, if Figure 1 or Figure 3 or Figure 4 or Figure 5 As shown, the manual turning structure is a manual turning wheel 4. The diameter of the manual turning wheel 4 is larger than the driving spindle 2. Since the diameter of the manual turning wheel 4 is larger than the driving spindle 2, it is more labor-saving when rotating the driving spindle 2.

[0054] In this embodiment, the escalator drive device is divided into two parts, one part is the rotary drive device 3, and the other part is the part of the escalator drive device other than the rotary drive device 3. By placing the rotary drive device 3 on the outside of the escalator truss 1, the installation space inside the escalator truss 1 can be saved. Compared with the prior art, the internal space of the escalator truss 1 is reduced, making the structure of the escalator truss 1 more compact. In addition, since the rotary drive device 3 is installed on the outside of the escalator truss 1, when the rotary drive device 3 is inspected and repaired, it is not necessary to disassemble the escalator truss 1, and the rotary drive device 3 can be directly inspected and repaired, thereby improving the efficiency of the escalator inspection and repair. In addition, by arranging the rotary drive device 3 on the outside of the escalator truss 1, the rotary drive device 3 can have a better heat dissipation space, improve the heat dissipation efficiency of the rotary drive device 3, and then improve the service life of the rotary drive device 3.

[0055] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An escalator driving device, characterized in that: include: An escalator truss, a driving spindle arranged inside the escalator truss and a rotary driving device arranged outside the escalator truss, wherein the rotary driving device and the driving spindle are connected via a transmission assembly.

2. The escalator driving device according to claim 1, characterized in that: The transmission assembly includes a driving sprocket, a driven sprocket and a chain; the driving sprocket is fixedly arranged at the output end of the rotary drive device, the driven sprocket is fixedly arranged on the driving main shaft, and the chain is wound between the driving sprocket and the driven sprocket.

3. The escalator driving device according to claim 2, characterized in that: The driven sprocket is fixedly arranged at one end of the driving main shaft.

4. The escalator driving device according to claim 2, characterized in that: The driven sprocket is fixedly arranged at the middle part of the driving main shaft.

5. The escalator driving device according to claim 1, characterized in that: The transmission assembly comprises a flexible inelastic element coupling; two ends of the flexible inelastic element coupling are respectively connected to the driving main shaft and the output end of the rotary driving device.

6. The escalator driving device according to claim 5, characterized in that: The flexible inelastic element coupling is a universal joint coupling.

7. The escalator driving device according to any one of claims 1 to 6, characterized in that: The rotary drive device is a hydraulic motor.

8. The escalator driving device according to any one of claims 1 to 6, characterized in that: The driving spindle is provided with a manual turning structure for facilitating the rotation of the driving spindle.

9. The escalator driving device according to claim 8, characterized in that: The manual turning structure is a manual turning wheel.

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