A detachable manual unscrambling mechanism of a traction machine

Abstract

The application relates to the elevator technical field and discloses a detachable manual turning gear mechanism of a hoisting machine, the hoisting machine being provided with a machine base and a steel belt driving shaft protruding on the machine base, a plurality of mounting parts being arranged on the machine base, the manual turning gear mechanism comprising: a turning gear, provided with an insertion hole; a protection switch, comprising a switch socket and a switch plug, the switch plug being slidably arranged on the switch socket, the switch plug being provided with a baffle; when the switch plug is inserted on the switch socket, the baffle can block the turning gear outside the steel belt driving shaft; when the switch plug is slid outward to be separated from the switch socket, the turning gear can be detachably arranged on the steel belt driving shaft along the steel belt driving shaft; a turning handle shaft, comprising a rotating shaft and a handle, the rotating shaft being provided with a driving gear engaged with the turning gear. The application has the advantages that the turning gear can be quickly and conveniently detached and assembled, can be turned in multiple directions, one turning gear is suitable for multiple hoisting machines, and the safety performance is good.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and more particularly to a detachable manual turning mechanism for a traction machine. Background Technology

[0002] The turning mechanism is typically located on the elevator's traction machine. When the elevator malfunctions or experiences a power outage, the traction machine's drive circuit loses power. Maintenance personnel then manually turn the turning wheels via the turning mechanism, which in turn drives the steel belt drive shaft through the intermediate transmission system, thus moving the elevator car up and down. For slender traction machines using axial disc brakes (such as steel belt traction machines), it is difficult to install a traditional turning mechanism due to their slender structure.

[0003] In elevator machine rooms, there are sometimes many traction machines. If each traction machine is equipped with a turning mechanism, the operating cost will be high and resources will be wasted. Moreover, since the turning position of the turning mechanism is fixed and the space in the machine room is limited, interference between parts may occur, making it inconvenient to turn the machine. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to propose a detachable manual turning mechanism for a traction machine that is easy to assemble and disassemble, can be turned in multiple directions, and has good safety performance.

[0005] The technical solution adopted by this invention to solve its technical problem is to propose a detachable manual turning mechanism for a traction machine. The traction machine has a base and a steel belt drive shaft protruding from the base. The base is provided with several mounting parts. The detachable manual turning mechanism includes:

[0006] A turning gear, wherein the turning gear is provided with an insertion hole for insertion into the steel belt drive shaft;

[0007] A protective switch includes a switch socket and a switch plug. The switch socket is detachably fixed to the traction machine, and the switch plug is slidably disposed on the switch socket, with a baffle on the switch plug. When the switch plug is inserted into the switch socket, the baffle can block the turning gear from entering the steel belt drive shaft. When the switch plug slides outward to disengage from the switch socket, the turning gear can be detachably mounted on the steel belt drive shaft.

[0008] The handwheel shaft includes a shaft and a handwheel. One end of the shaft is detachably connected to the mounting part, and the handwheel is connected to the other end of the shaft. The shaft is provided with a drive gear for meshing with the turning gear.

[0009] Furthermore, the switch plug is provided with an elongated groove, and a fixing screw passes through the elongated groove to connect the switch plug to the switch socket;

[0010] When the switch plug is inserted into the switch socket, the fixing screw is at one end of the elongated slot; when the switch plug slides outward to disengage from the switch socket, the fixing screw is at the other end of the elongated slot.

[0011] Furthermore, the switch plug has two elongated slots arranged side by side, and each of the two elongated slots has a fixing screw.

[0012] Furthermore, the base is provided with a plurality of mounting portions along its circumference, and when the rotating shaft is mounted to any of the mounting portions, the driving gear can mesh with the turning gear.

[0013] Furthermore, the number of teeth of the drive gear is less than that of the slewing gear, and the tooth width of the drive gear is greater than that of the slewing gear.

[0014] Furthermore, the radius of the handwheel is greater than the tip circle radius of the turn gear.

[0015] Furthermore, the steel belt drive shaft is provided with a flat key or a spline, and the steel belt drive shaft is detachably connected to the turning gear via the flat key or the spline.

[0016] Furthermore, the drive gear is integrally formed with the rotating shaft, and the handwheel is detachably fixedly connected to the rotating shaft.

[0017] Furthermore, both the turning gear and the turning handwheel shaft can be detachably mounted to or removed from the traction machine along the axial direction of the steel belt drive shaft.

[0018] Furthermore, the switch socket is detachably fixed to the traction machine by screws.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In this invention, both the turning gear and the turning handwheel axle are detachably mounted on the traction machine, enabling quick assembly and disassembly. When multiple traction machines are installed in the machine room, only one turning mechanism is needed, which can accommodate multiple traction machines, reducing operating costs and facilitating turning operations. Multiple mounting points are arranged circumferentially along the traction machine base, and the turning handwheel axle can be inserted into any of these points for turning operations. This allows operators to perform turning operations from multiple directions, preventing limitations on the traction machine's layout in the machine room. During use, when the switch plug is plugged into the switch socket, the traction machine's drive circuit is connected. The baffle on the switch plug blocks the turning gear, preventing it from being installed on the steel belt drive shaft. In other words, turning operations are impossible when the power is on, ensuring operator safety. When a turning action is required, the switch plug slides outward along the switch socket, disengaging from the switch socket. The traction machine's drive circuit is disconnected, the baffle no longer obstructs the turning gear, and the turning gear can be installed onto the steel belt drive shaft along the steel belt drive shaft to perform the turning action, ensuring high safety performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the assembly of the turning gear mechanism and the traction machine of the present invention;

[0022] Figure 2 for Figure 1 A structural diagram from another perspective;

[0023] Figure 3 A schematic diagram showing the separation of the turning gear and the turning handwheel axle from the traction machine;

[0024] Figure 4 for Figure 3 A structural diagram from another perspective;

[0025] Figure 5 for Figure 1 A schematic diagram after removing the turning gear and the handwheel axle of the turning gear;

[0026] Figure 6 A schematic diagram of the structure of the protection switch.

[0027] In the picture:

[0028] 1. Traction machine; 11. Machine base; 110. Mounting part; 12. Steel belt drive shaft; 120. Flat key;

[0029] 2. Rotary gear; 20. Insertion hole;

[0030] 3. Protective switch; 30. Switch socket; 31. Switch plug; 310. Baffle; 311. Long slot; 32. Fixing screw;

[0031] 4. Handwheel axle; 40. Shaft; 41. Handwheel; 42. Drive gear. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0037] like Figures 1-5As shown, a detachable manual turning mechanism for a traction machine 1 is disclosed. The traction machine 1 has a base 11 and a steel belt drive shaft 12 protruding from the base 11. The base 11 is provided with several mounting portions 110, supporting the entire traction machine 1. The output shaft of the traction machine 1 is the steel belt drive shaft 12, which winds a steel belt to drive the car's lifting and lowering motion. The base 11 has multiple mounting portions 110 along its circumference, and when the rotating shaft 40 is installed in any of the mounting portions 110, the drive gear 42 can mesh with the turning gear 2. The mounting portion 110 is a mounting hole on the base 11, in which the rotating shaft 40 can be installed and rotated relative to the base 11. Furthermore, the rotating shaft 40 can be quickly removed from the mounting hole.

[0038] In actual use, multiple mounting parts 110 are arranged around the circumference of the base 11 of the traction machine 1. The handwheel 41 shaft can be inserted into any mounting part 110 for turning operation. The operator can turn the machine from multiple directions to avoid the layout of the traction machine 1 in the machine room being restricted.

[0039] The detachable manual turning mechanism mainly includes: turning gear 2, protection switch 3, and turning handwheel 41 shaft.

[0040] The turning gear 2 is provided with an insertion hole 20 for insertion into the steel belt drive shaft 12. The insertion hole 20 is adapted to the steel belt drive shaft 12. Specifically, the steel belt drive shaft 12 is provided with a flat key 120 or a spline, and the steel belt drive shaft 12 is detachably connected to the turning gear 2 through the flat key 120 or the spline. When the turning gear 2 is installed on the steel belt drive shaft 12, the flat key 120 or spline is also inserted into the insertion hole 20 for transmitting torque. That is, when the turning gear 2 rotates, it drives the steel belt drive shaft 12 to rotate, thereby causing the steel belt drive shaft 12 to wind the steel belt and drive the elevator car to move up and down.

[0041] like Figures 1-2 and Figure 6As shown, the protective switch 3 includes a switch socket 30 and a switch plug 31. The switch socket 30 is detachably fixed to the traction machine 1, specifically by screws. This screw fixation facilitates easy disassembly, assembly, and replacement. Generally, each traction machine 1 can be equipped with one protective switch 3. The switch plug 31 is slidably mounted on the switch socket 30 and has a baffle 310. This baffle 310 can be integrally mounted on the switch plug 31 or separately mounted but fixedly connected. When the switch plug 31 is inserted into the switch socket 30, the protective switch 3 is in normal working condition, the drive circuit of the traction machine 1 is in a closed state, and the traction machine 1 drives the steel belt through the circuit. At this time, the baffle 310 can block the turning gear 2 outside the steel belt drive shaft 12. By blocking the turning gear 2 with the baffle 310, it is ensured that the turning gear 2 cannot be installed on the steel belt drive shaft 12 for turning when the drive circuit is open, thus ensuring the safety of the operator. When the switch plug 31 slides outward to disengage from the switch socket 30, the drive circuit of the traction machine 1 is in an open circuit state. The traction machine 1 is no longer driven by the drive circuit. At this time, the baffle 310 no longer blocks the turning gear 2, and the turning gear 2 can be detachably installed on the steel belt drive shaft 12.

[0042] Specifically, the switch plug 31 has an elongated groove 311, through which a fixing screw 32 passes to connect the switch plug 31 to the switch socket 30. When the switch plug 31 is inserted into the switch socket 30, the fixing screw 32 is at one end of the elongated groove 311. When the switch plug 31 slides outward to disengage from the switch socket 30, the fixing screw 32 is at the other end of the elongated groove 311. Furthermore, the switch plug 31 has two elongated grooves 311 arranged side-by-side, and each of the two elongated grooves 311 has a fixing screw 32. The two fixing screws 32 fix the position of the switch plug 31, ensuring that the position of the switch plug 31 remains reliable. The two elongated grooves 311 ensure reliable movement of the switch plug 31.

[0043] In actual use, when the switch plug 31 is inserted into the switch socket 30, the drive circuit of the traction machine 1 is connected. The baffle 310 on the switch plug 31 can block the turning gear 2, preventing the turning gear 2 from being installed on the steel belt drive shaft 12. That is, in the energized state, turning action cannot be performed, ensuring operator safety. When turning action is required, the switch plug 31 slides outward along the switch socket 30, disengaging from the switch socket 30. The drive circuit of the traction machine 1 is disconnected, and the baffle 310 no longer blocks the turning gear 2. The turning gear 2 can then be installed on the steel belt drive shaft 12 for turning action, ensuring high safety. During use, there is no need to remove the switch plug 31 from the switch socket 30, preventing loss of the switch plug 31 and facilitating adjustment.

[0044] like Figures 2-4 As shown, the handwheel 41 shaft includes a rotating shaft 40 and a handwheel 41. One end of the rotating shaft 40 is detachably connected to the mounting part 110, and the handwheel 41 is connected to the other end of the rotating shaft 40. The rotating shaft 40 is provided with a drive gear 42 for meshing with the rotating gear 2. The drive gear 42 is integrally formed with the rotating shaft 40, and the handwheel 41 is detachably fixedly connected to the rotating shaft 40.

[0045] In actual use, the operator manually turns the handwheel 41, which drives the rotating shaft 40 to rotate. The drive gear 42 rotates along with the rotating shaft 40. The drive gear 42 meshes with the turning gear 2, which rotates and drives the steel belt drive shaft 12 of the traction machine 1 to rotate, winding or releasing the steel belt and controlling the elevator car's lifting and lowering movement.

[0046] Specifically, the number of teeth on the drive gear 42 is less than that on the slewing gear 2. When the drive gear 42 meshes with the slewing gear 2, it is equivalent to a first-stage reduction, ensuring smooth lifting and lowering of the car. Furthermore, the tooth width of the drive gear 42 is greater than that of the slewing gear 2, ensuring reliable meshing between the drive gear 42 and the slewing gear 2 and preventing disengagement. The radius of the handwheel 41 is greater than the tip circle radius of the slewing gear 2, and significantly larger than the tip circle radius of the drive gear 42. The handwheel 41 allows the operator to smoothly rotate the shaft 40, effectively increasing the force-bearing radius of the shaft 40 and thus reducing effort.

[0047] In actual use, both the turning gear 2 and the turning handwheel 41 shaft can be detachably installed onto or removed from the traction machine 1 along the axial direction of the steel belt drive shaft 12, enabling quick assembly and disassembly of the turning gear 2 and the turning handwheel 41 shaft. In this embodiment, both the turning gear 2 and the turning handwheel 41 shaft can be detachably installed on the traction machine 1, allowing for quick assembly and disassembly. When multiple traction machines 1 are installed in the machine room, only one turning mechanism is needed, which can accommodate multiple traction machines 1, reducing operating costs and facilitating turning operations.

[0048] The working principle of the turning mechanism is as follows: When turning is required, first loosen the fixing screw 32, slide the switch plug 31 outward along the switch socket 30, so that the baffle 310 also slides outward, the switch plug 31 is disconnected from the switch socket 30, the drive circuit of the traction machine 1 is disconnected, and the baffle 310 no longer obstructs the turning gear 2. The turning gear 2 is fitted onto the steel belt drive shaft 12 along the axial direction, and the two transmit torque through the flat key 120 or spline; the turning handwheel 41 is inserted into the mounting part 110 along the axial direction of the steel belt drive shaft 12, and the driving gear 42 on the rotating shaft 40 meshes with the turning gear 2. The operator manually turns the handwheel 41, which drives the rotating shaft 40 and the drive gear 42 to rotate. The drive gear 42 meshes with the transmission wheel gear 2, which drives the steel belt drive shaft 12 to rotate. The steel belt drive shaft 12 winds or releases the steel belt, controlling the elevator car to move up and down.

[0049] In this solution, the turning mechanism can be quickly assembled and disassembled, and can be turned in multiple directions. One turning mechanism can be adapted to multiple traction machines 1, and it has good safety performance.

Claims

1. A detachable manual turning mechanism for a traction machine, the traction machine having a base and a steel belt drive shaft protruding from the base, the base being provided with a mounting portion, characterized in that, The detachable manual turning mechanism includes: A turning gear, wherein the turning gear is provided with an insertion hole for insertion into the steel belt drive shaft; A protective switch includes a switch socket and a switch plug. The switch socket is detachably fixed to the traction machine, and the switch plug is slidably disposed on the switch socket, with a baffle on the switch plug. When the switch plug is inserted into the switch socket, the baffle can block the turning gear from entering the steel belt drive shaft. When the switch plug slides outward to disengage from the switch socket, the turning gear can be detachably mounted on the steel belt drive shaft. A handwheel shaft for turning a wheel includes a shaft and a handwheel. One end of the shaft is detachably connected to the mounting part, and the handwheel is connected to the other end of the shaft. The shaft is provided with a drive gear for meshing with the turning gear. The base is provided with a plurality of mounting parts along its circumference, and when the rotating shaft is installed in any of the mounting parts, the driving gear can mesh with the turning gear, and the turning handwheel shaft can be inserted into any of the mounting parts for turning operation; The switch plug has an elongated groove, and a fixing screw passes through the elongated groove to connect the switch plug to the switch socket; When the switch plug is inserted into the switch socket, the fixing screw is at one end of the elongated slot; when the switch plug slides outward to disengage from the switch socket, the fixing screw is at the other end of the elongated slot; this eliminates the need to remove the switch plug from the switch socket to prevent loss of the switch plug. The switch plug has two elongated slots arranged side by side, and each of the two elongated slots has a fixing screw.

2. The detachable manual turning mechanism of the traction machine according to claim 1, characterized in that, The number of teeth of the drive gear is less than that of the turning gear, and the tooth width of the drive gear is greater than that of the turning gear.

3. The detachable manual turning mechanism of the traction machine according to claim 2, characterized in that, The radius of the handwheel is greater than the addendum circle radius of the trolley gear.

4. The detachable manual turning mechanism of the traction machine according to claim 1, characterized in that, The steel belt drive shaft is provided with a flat key or a spline, and the steel belt drive shaft is detachably connected to the turning gear through the flat key or the spline.

5. The detachable manual turning mechanism of the traction machine according to claim 1, characterized in that, The drive gear is integrally formed with the rotating shaft, and the handwheel is detachably fixedly connected to the rotating shaft.

6. The detachable manual turning mechanism of the traction machine according to claim 1, characterized in that, Both the turning gear and the turning handwheel axle can be detachably mounted to or removed from the traction machine along the axial direction of the steel belt drive shaft.

7. The detachable manual turning mechanism of the traction machine according to claim 1, characterized in that, The switch socket is detachably fixed to the traction machine by screws.

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