TW201829280A - Power saving lift having a power controller switchable between two power units that have different output powers according to a load weight of a carriage mechanism - Google Patents

Abstract

A power-saving lift includes a lift transmission mechanism mounted on a building and driving a carriage mechanism to lift, a driving mechanism for driving the lift transmission mechanism, and a power controller for controlling the driving mechanism. An actuator of the lift transmission mechanism can drive the carriage mechanism to move up and down relatively. The driving mechanism includes a first power unit and a second power unit respectively coupled to the actuator in a transmission manner. The power controller can automatically switch between the first power unit and the second power unit that have different output powers according to a load weight of the carriage mechanism, so as to solve the problem that the conventional lift drives lifting with the same power device regardless of the magnitude of the load weight.

Description

Power saving elevator

The present invention relates to an elevator, and more particularly to a dual-powered elevator.

The lifts are already basic equipment for multi-storey buildings and can be installed in buildings or outside the building to carry passengers and cargo. At present, the structure design of the elevator includes a car mechanism, a lifting mechanism for driving the car body to lift, and a driving mechanism for driving the lifting mechanism. The drive mechanism is mainly powered by a motor to drive the lifting mechanism. Although the design of the single motor drive is relatively simple, the drive mechanism still uses the motor regardless of the load in the car mechanism. The output power, in the case of no load or small load, is relatively less power-saving, so there is still room for improvement in the current elevator design.

Accordingly, it is an object of the present invention to provide a power saving elevator that improves at least one of the disadvantages of the prior art.

Therefore, the power-saving elevator of the present invention is suitable for being mounted on a building, comprising a car mechanism, an elevating transmission mechanism for mounting and fixing the car body mechanism, and a driving mechanism for driving the lifting mechanism. a drive mechanism and a power controller for controlling the drive mechanism. The lifting and lowering mechanism includes a weight, a cable with two ends fixed to the car mechanism and the weight, and a driver for being fixed to the building and coupled to the cable, The actuator can be driven to drive the cable to drive the counterweight to be displaced relative to the carriage mechanism. The driving mechanism includes a first power unit and a second power unit respectively coupled to the transmission, the first power unit includes a first driver capable of outputting a first driving power, and a transmission is coupled thereto. a first electromagnetic clutch between the first driver and the actuator, the second power unit includes a second driver capable of outputting a second driving power, and a second electromagnetic clutch connecting the second driver and the actuator And the first driving power is greater than the second driving power. The power controller includes a weight sensing unit that senses a load weight of the car mechanism and outputs a load signal, and a control unit that is connected to the driving mechanism and the weight sensing unit, and the control unit When the load signal represents a load weight greater than a load threshold, controlling the first electromagnetic clutch to drive the first driver and the actuator, and controlling the first driver to drive the actuator via the first electromagnetic clutch, and When the load signal represents a weight less than the load threshold, the second electromagnetic clutch is controlled to drive the second driver and the actuator, and the second driver is controlled to operate the actuator via the second electromagnetic clutch.

Therefore, the power-saving elevator of the present invention is suitable for being mounted on a building, comprising a car mechanism, an elevating transmission mechanism for mounting and fixing the car body mechanism, and a driving mechanism for driving the lifting mechanism. a drive mechanism and a power controller for controlling the drive mechanism. The lifting and lowering mechanism includes at least one actuator that is erected between the ground and the car mechanism and can be driven to expand and contract up and down to drive the car mechanism to move up and down. The driving mechanism includes a hydraulic pump connected to the at least one actuator, and a first power unit and a second power unit respectively coupled to the hydraulic pump, and the hydraulic pump can be driven to control the The first power unit includes a first driver capable of outputting a first driving power, and a first electromagnetic clutch coupled between the first driver and the hydraulic pump, the second The power unit includes a second driver capable of outputting a second driving power, and a second electromagnetic clutch that is coupled between the second driver and the hydraulic pump, and the first driving power is greater than the second driving power. The power controller includes a weight sensing unit mounted to the car mechanism and capable of sensing a load weight of the car mechanism to output a load signal, and a control unit connected to the driving mechanism and the weight sensing unit. The control unit controls the first electromagnetic clutch to connect the first driver and the hydraulic pump when the load weight represented by the load signal is greater than a load threshold, and controls the first driver to transmit the first electromagnetic clutch via the first electromagnetic clutch. The hydraulic pump operates, and when the load weight represented by the load signal is less than the load threshold, controlling the second electromagnetic clutch to drive the second drive and the hydraulic pump, and controlling the second drive to pass the second electromagnetic clutch Drive the hydraulic pump to operate.

The effect of the invention is that the power controller can switch the start of the first power unit and the second power unit to drive the design of the lifting and lowering mechanism according to the load weight of the car mechanism, and can effectively match the weight of the load and switch at the right time. Starting the power source with different power size output can improve the disadvantage that the conventional elevator drives and lifts with the same power equipment regardless of the load size.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1, 2, and 3, a first embodiment of the power-saving elevator of the present invention is suitable for installation on the side of a building 900 and can be used to carry passengers and cargo. The power-saving elevator includes a car mechanism 3, an elevating transmission mechanism 4 mounted to the building 900 and coupled to the car mechanism 3, and a driving mechanism mounted to the building 900 and coupled to the elevating transmission mechanism 4. 5, and a signal is connected to the power controller 6 of the drive mechanism 5.

The car mechanism 3 includes a casing 31 and a casing body 32 that is mounted to the casing 31 and carries passengers and articles. Since the type of the car mechanism 3 is numerous and is not an improvement point of the present invention, it will not be described in detail, and the implementation is not limited to the illustrated style.

The hoisting mechanism 4 has a counterweight 41, two steel cables 42, and a transmission 43 that is coupled to the cables 42. Each of the cables 42 is connected to the weight 41 and the casing 31 by its two ends. The transmission 43 is mounted on the building 900 and is coupled to the cables 42. In the present embodiment, the actuator 43 has at least one steel cable wheel (not shown) for winding the cables 42, which can be driven by the driving mechanism 5 to drive the cables 42 to cooperate to drive the compartment. The mechanism 3 is displaced relative to the counterweight 41 up and down. Since the transmission 43 drives the cables 42 to move the car mechanism 3 up and down relative to the counterweight 41 as a conventional technique, and the manner is numerous, it will not be described in detail.

The drive mechanism 5 includes a first power unit 51 and a second power unit 52 that are respectively coupled to opposite sides of the actuator 43.

The first power unit 51 includes a first driver 512 and a first electromagnetic clutch 513 coupled between the first driver 512 and the actuator 43 . The first driver 512 can be output via the first electromagnetic clutch 513 . A first driving force. The first driver 512 and the first electromagnetic clutch 513 are both connected to the power controller 6, and the first electromagnetic clutch 513 can be driven by the power controller 6 to clutch the first driver 512 and the actuator 43. When the first electromagnetic clutch 513 is driven to combine with the first driver 512 and the actuator 43, the first driver 512 can be controlled by the power controller 6 to drive the actuator 43 via the first electromagnetic clutch 513, thereby Controlling the transmission 43 to drive the cable 42 drives the carriage mechanism 3 and the counterweight 41 to be displaced up and down.

The second power unit 52 includes a second driver 522 and a second electromagnetic clutch 523 coupled between the second driver 522 and the actuator 43 . The second driver 522 can be output via the second electromagnetic clutch 523 . A second driving force. The second driver 522 is connected to the power controller 6 in the same manner as the second electromagnetic clutch 523. The second electromagnetic clutch 523 can be driven by the power controller 6 to clutch the second driver 522 and the actuator 43. When the second electromagnetic clutch 523 is driven to connect the second driver 522 and the actuator 43, the second driver 522 can be driven by the power controller 6 to drive the actuator 43 to operate via the second electromagnetic clutch 523. The transmission 43 is further controlled to drive the cable 42 to drive the carriage mechanism 3 and the counterweight 41 to be displaced upward and downward.

In this embodiment, the first driver 512 and the second driver 522 are both motors.

Referring to Figures 2, 3 and 4, the power controller 6 includes a plurality of weight sensing units 61 spaced between the casing 31 and the casing body 32, and a signal connected to the driving mechanism 5 and the sense of weight. The control unit 62 of the measuring unit 61. The weight sensing unit 61 is disposed between the bottom surface of the car body 32 and the casing 31, and can respectively sense the weight of the passengers and articles carried by the car body 32, and correspondingly output a load signal. Since there are many types of sensors that can sense weight, they are not described in detail.

The control unit 62 includes a weight analysis module 621 and a power control module 622. The weight analysis module 621 can receive and analyze the load signals to determine a load weight. The power control module 622 has a built-in load threshold and has a large power mode 623 and a small power mode 624 that can be switched on and activated. The power control module 622 can activate the large power mode 623 when the load weight is greater than the load threshold, and control the first power unit 51 to output the first driving power, that is, a larger driving force. The actuator 43 is driven to operate to drive the lifting displacement of the car mechanism 3 carrying heavy passengers and/or items relative to the building 900. When the load weight is less than the load threshold, for example, when the passenger and the item are not carried, the power control module 622 switches to start the small power mode 624, and controls the second power unit 52 to output the second driving power. The actuator 43 drives the carriage mechanism 3 to move up and down relative to the building 900 with less power.

The dual power structure design of the first power unit 51 and the second power unit 52 is set by the driving mechanism 5, and the power controller 6 can sense the load weight of the car body 32, and according to the load weight The size, automatic switching, the design of the large power mode 623 and the small power mode 624 can be switched to a large power mode 623 and a small power mode 624 capable of providing suitable power according to the current load weight of the car mechanism 3. When the load weight is small, the second power unit 52 that consumes less power is used to drive, which saves power.

Referring to Figures 4, 5 and 6, the second embodiment of the power-saving elevator of the present invention differs from the first embodiment in the structural design of the lifting mechanism 4 and the driving mechanism 5, and the vehicle mechanism 3 and the lifting transmission. The drive connection design of the mechanism 4. For convenience of explanation, only the differences between the present embodiment and the first embodiment will be described below.

In the present embodiment, the lift transmission mechanism 4 includes two guide rails 44 that are vertically spaced apart from each other on the ground, and two actuators 43 that are vertically spaced apart from each other and are located between the opposite sides of the guide rails 44. The guide rails 44 are respectively located on the left and right sides of the car mechanism 3, and the guide rails 44 are respectively recessed with a guide groove 440 extending upward and downward.

The actuators 43 are also located on the left and right sides of the car mechanism 3, and in the embodiment, the actuators 43 are respectively hydraulic cylinders that can be driven up and down, and are respectively connected to the casing by the top end thereof. 31, can be driven upward to cooperate to drive the car mechanism 3 up, and driven down to drive the car mechanism 3 down.

The drive mechanism 5 further includes a hydraulic pump 53 connected to the actuators 43 . The first power unit 51 and the second power unit 52 are separately coupled to the hydraulic pump 53 .

The first power unit 51 includes a first driver 512 and a first electromagnetic clutch 513 coupled between the first driver 512 and the hydraulic pump 53. The first driver 512 and the first electromagnetic clutch 513 are both connected to the power controller 6 , and the first electromagnetic clutch 513 can be driven by the power controller 6 to clutch the first driver 512 and the hydraulic pump 53 . When the first electromagnetic clutch 513 is driven to combine the first driver 512 and the hydraulic pump 53, the first driver 512 can be controlled by the power controller 6 to drive the hydraulic pump 53 via the first electromagnetic clutch 513. Operating, the flow of hydraulic oil within the actuators 43 is controlled to control the expansion and contraction of the actuators 43.

The second power unit 52 includes a second driver 522 and a second electromagnetic clutch 523 that is coupled between the second driver 522 and the hydraulic pump 53. The second driver 522 is connected to the power controller 6 in the same manner as the second electromagnetic clutch 523. The second electromagnetic clutch 523 can be driven by the power controller 6 to clutch the second driver 522 and the hydraulic pump 53. . When the second electromagnetic clutch 523 is driven to connect the second driver 522 and the hydraulic pump 53, the second driver 522 can be driven by the power controller 6 to drive the hydraulic pump to operate via the second electromagnetic clutch 523. The flow of hydraulic oil in the actuators 43 is controlled to control the expansion and contraction of the actuators 43.

The housing 31 has two limiting protrusions 311 extending in the left and right and extending upward and downward in the guiding slots 440. The limiting protrusions 311 are along the guiding slots of the guiding rails 44. The design of the up-and-down displacement of the 440 allows the casing 31 to be stably displaced up and down by the actuators 43 without swaying back and forth.

When the power-saving elevator of the embodiment is used, the power controller 6 can also switch the start of the large power mode 623 or the small power mode 624 according to the load weight of the car body 32, when the power mode 623 is activated. The second electromagnetic clutch 523 is controlled to separate the second driver 522 from the hydraulic pump 53, and the first electromagnetic clutch 513 is controlled to drive and connect the first driver 512 and the hydraulic pump 53, and then the first driver 512 is controlled. Operation. Conversely, when the power controller 6 activates the small power mode 624, the first electromagnetic clutch 513 is controlled to separate the first driver 512 from the hydraulic pump 53, and the second electromagnetic clutch 523 is driven to drive the connection. The second driver 522 and the hydraulic pump 53 then control the second driver 522 to operate.

In terms of general lift specifications, the lift with a load of 5000 kg and a lifting speed of 7 m/min is generally rated at 15 horsepower for the drive, and the lift with a load of 10,000 kg and a lifting speed of 7 m/min. The rated horsepower of the general drive is 30 hp, and the lifts of the above two specifications are operated at rated horsepower at no load and full load. However, if the dual power unit structure design of the present invention is used, when the lift is empty or the load is less than the load threshold, the first power unit 51 that provides the rated full load horsepower (for example, 15 horsepower or 30 horsepower) can be switched to only need Providing a second power unit 52 for driving a low load of the car (e.g., 3 horsepower) can greatly reduce the operating energy consumption of the elevator.

The power controller 6 is also capable of lowering the power consumption of the second power unit 52 when the load weight is less than the load threshold by transmitting the up and down displacement of the vehicle mechanism 3 by the actuator 43 of the hydraulic cylinder type. To drive the hydraulic pump 53, the same effect can be achieved.

It should be noted that in the present embodiment, the hoisting mechanism 4 is provided with two actuators 43, but in other embodiments of the invention, only one actuator 43 can be provided, for example, the actuator 43 It is disposed upright between the bottom surface of the casing 31 and the ground, and can also be used to drive the car mechanism 3 to move up and down.

In summary, the power controller 6 can switch between the first power unit 51 and the second power unit 52 that can output different powers to drive the lift mechanism 4 according to the load weight of the car mechanism 3 . The driving mechanism 4 can drive the lifting mechanism 4 with the second power unit 52 with low energy consumption when the load weight of the car mechanism 3 is light, only when the load weight of the car mechanism 3 is greater than the preset load threshold. The first power unit 51 of the large power output is activated to drive the lifting and lowering mechanism 4, so the power saving elevator of the present invention can effectively match the weight of the load, automatically switch the power source for starting different output powers, and can improve the conventional elevator regardless of the load. The size is the same as the power consumption of the same power equipment to drive the lift. Therefore, the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

3‧‧‧Car body

31‧‧‧ cabin

311‧‧‧Limited convex

32‧‧‧ ‧ body

4‧‧‧ Lifting gear

41‧‧‧weights

42‧‧‧Steel cable

43‧‧‧Transmission

44‧‧‧ rails

440‧‧ ‧ guide slot

5‧‧‧ drive mechanism

51‧‧‧First Power Unit

511‧‧‧First drive shaft

512‧‧‧First drive

513‧‧‧First electromagnetic clutch

52‧‧‧Second power unit

521‧‧‧second drive shaft

522‧‧‧second drive

523‧‧‧Second electromagnetic clutch

53‧‧‧Hydraulic pump

6‧‧‧Power Controller

61‧‧‧ Weight sensing unit

62‧‧‧Control unit

621‧‧‧Gear Analysis Module

622‧‧‧Power Control Module

623‧‧‧Power mode

624‧‧‧Small power mode

900‧‧‧ buildings

Other features and advantages of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a side elevational view of a first embodiment of the power-saving elevator of the present invention installed in a building; Figure 2 is a perspective view of the first embodiment; Figure 3 is a partial cross-sectional view of the first embodiment; Figure 4 is a functional block diagram of the first embodiment; Figure 5 is a power saving elevator of the present invention. A front side partial cross-sectional view of a second embodiment; and Fig. 6 is an incomplete side view of the second embodiment, schematically illustrating the second embodiment when erected in a building.

Claims (9)

A power-saving elevator suitable for installation in a building, comprising: a carriage mechanism; a lifting transmission mechanism comprising a counterweight, a steel cable fixed at both ends thereof to the carriage mechanism and the counterweight, And an actuator for mounting and fixing to the building and the transmission is coupled to the cable, the transmission can be driven to drive the cable to drive the counterweight to move up and down relative to the car mechanism; a drive mechanism comprising separate transmissions a first power unit coupled to the first power unit and a second power unit, the first power unit including a first driver capable of outputting a first driving power, and a transmission coupled to the first driver and the actuator a first electromagnetic clutch, the second power unit includes a second driver capable of outputting a second driving power, and a second electromagnetic clutch that is coupled between the second driver and the actuator, and the first driving power Greater than the second driving power; and a power controller including a load weight capable of sensing the car mechanism And a weight sensing unit that outputs a load signal, and a control unit that is connected to the driving mechanism and the weight sensing unit, and the control unit controls the first when the load weight represented by the load signal is greater than a load threshold. An electromagnetic clutch is coupled to the first driver and the actuator, and controls the first driver to operate the transmission via the first electromagnetic clutch, and controls the first when the load weight represented by the load signal is less than the load threshold A second electromagnetic clutch drives the second driver and the actuator and controls the second driver to operate the actuator via the second electromagnetic clutch. The power saving elevator of claim 1, wherein the control unit comprises a weight analysis module and a power control module, and the weight analysis module can receive a load weight representative of the load signal, the power control mode The load threshold is built in the group, and has a large power mode and a small power mode that can be switched on and started. When the load weight is greater than the load threshold, the large power mode is activated, and the first power unit is controlled to operate. The small power mode is activated when the load weight is less than the load threshold, and the second power unit is controlled to operate. The power-saving elevator of claim 2, wherein the first driver and the second driver are both motors. The power-saving elevator according to 2 or 3, wherein the car mechanism comprises a casing coupled to the cable, a casing body mounted on the casing and carrying a load, and the weight sensing unit is mounted on the casing Between the body of the car and the casing. A power-saving elevator suitable for installation in a building, comprising: a car mechanism; a lifting and lowering mechanism comprising at least one erected between the ground and the car mechanism, and capable of being driven up and down to drive the car mechanism up and down a displacement mechanism; a driving mechanism comprising a hydraulic pump connected to the at least one actuator, and a first power unit and a second power unit respectively coupled to the hydraulic pump, the oil pressure The pump can be driven to control the expansion and contraction of the at least one actuator, the first power unit includes a first driver capable of outputting a first driving power, and a first drive coupled between the first driver and the hydraulic pump An electromagnetic clutch, the second power unit includes a second driver capable of outputting a second driving power, and a second electromagnetic clutch connecting the second driver and the hydraulic pump, and the first driving power is greater than the first a second drive power; and a power controller including a load weight mounted to the car mechanism and capable of sensing the car mechanism a weight sensing unit that outputs a load signal, and a control unit that is connected to the driving mechanism and the weight sensing unit, and the control unit can control the load weight represented by the load signal when the load weight is greater than a load threshold. The first electromagnetic clutch is coupled to the first driver and the hydraulic pump, and controls the first driver to operate the hydraulic pump via the first electromagnetic clutch, when the load weight represented by the load signal is less than the load threshold. Controlling the second electromagnetic clutch to drive the second driver and the hydraulic pump, and controlling the second driver to operate the hydraulic pump via the second electromagnetic clutch. The power-saving elevator of claim 5, wherein the control unit comprises a weight analysis module and a power control module, and the weight analysis module can receive a load weight representative of the load signal, the power control mode The load threshold is built in the group, and has a large power mode capable of switching start and a small power mode. When the load weight is greater than the load threshold, the large power mode is activated, and the first power unit is controlled to operate. The small power mode is activated when the load weight is less than the load threshold, and the second power unit is controlled to operate. The power-saving elevator of claim 5 or 6, wherein the car mechanism comprises a casing coupled to the at least one transmission, and a casing body mounted on the casing, the weight sensing unit being mounted to Between the car body and the compartment. The power-saving elevator of claim 7, wherein the lifting and lowering mechanism comprises two actuators for standing on the ground and respectively coupled to the left and right sides of the casing, the hydraulic pump being connected to the The actuators are driven and can be driven to simultaneously control the expansion and contraction of the actuators. The power-saving elevator according to claim 8, wherein the lifting and lowering mechanism further comprises two guide rails respectively disposed on the left and right sides of the car mechanism, and the guide rails are respectively provided with a guide groove extending upward and downward on opposite sides of the guide rail. The shell has two left and right protruding protrusions and can be vertically displaced to respectively engage the limiting protrusions located in the guiding grooves.