Energy-saving elevator energy feedback device equipment

Abstract

The utility model relates to the technical field of elevator equipment, in particular to energy-saving elevator energy feedback device equipment, which is characterized in that the upper end part of a bottom plate is fixedly connected with a generator, the outer surface of the generator is sleeved with a first transmission shaft, the outer surface of the first transmission shaft is fixedly connected with a fixed lantern ring, and the outer surface of the first transmission shaft is slidably connected with a first protection ring; the outer surfaces of the fixing lantern ring and the first protection ring are fixedly connected with springs, a second protection ring is arranged at the upper end of the bottom plate, when the elevator is controlled to generate sudden stop operation, the first transmission shaft 13 is in a state that the rotating speed is gradually reduced due to the inertia effect, and when the second protection ring is limited and locked, the first protection ring rotates along the inclined surface of the second protection ring. And the first protection ring slides and shrinks during rotation, so that severe abrasion caused by sudden stop of the output shaft of the generator due to sudden stop of equipment is avoided, and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator equipment technical field, especially a kind of energy-saving elevator energy feedback device equipment. BACKGROUND

[0002] At present, with the increasingly serious energy problem and the deep-rooted concept of energy saving and environmental protection, elevators, as widely used vertical transportation tools in buildings, account for a considerable proportion of total building energy consumption. Energy-saving elevator energy feedback device equipment aims to recycle the excess energy generated during elevator operation, which has a significant impact on reducing elevator energy consumption and improving energy utilization efficiency. Current energy-saving elevator energy feedback device equipment often requires the following technologies in practical applications:

[0003] 1. Efficient power electronic conversion technology: used to convert the AC power generated by the elevator motor under braking or light load conditions into compatible AC power for the grid to feedback to the grid.

[0004] 2. Accurate energy monitoring and control technology: real-time and accurate monitoring of elevator operating conditions, motor power generation, grid voltage and frequency, and other parameters through various sensors.

[0005] 3. Reliable protection and fault tolerance technology: due to the importance of elevator safety, energy feedback devices should have a perfect protection mechanism.

[0006] Currently, various devices and methods are used to achieve elevator energy feedback.

[0007] For example, a kind of energy-saving elevator energy feedback device is disclosed in Chinese patent CN221821587U, which sets up an energy feedback assembly at the rotating end of the elevator traction machine, and a gear transmission set and a transmission shaft connecting assembly for connecting the energy feedback assembly and the traction machine. The traction force during elevator descent is intermittently transmitted to the gear transmission set through the transmission shaft connecting assembly. The gear transmission set relies on the meshing of the large gear with the small gear to rotate, and the transmission shaft is continuously rotated under the influence of the inertia of the counterweight block, so that the generator rotor can be driven. The kinetic energy during elevator descent is used to generate electricity for the generator to achieve energy saving and energy feedback.

[0008] However, the above method has a major problem, that is, to prevent elevator failure or sudden situations, elevator equipment usually has an emergency stop function. The above device lacks protection for the generator output shaft during emergency stop operation, and the generator output shaft will suddenly change from rotating to stopping, which will cause the friction between the generator shaft and the bearing, coupling and other connecting parts to increase instantaneously and unevenly, thereby exacerbating wear and affecting the service life of the device. UTILITY MODEL CONTENTS

[0009] In view of the defects of the prior art, the utility model provides an energy saving elevator energy feedback device equipment, solves for preventing the emergence of elevator failure or the emergence of sudden situation, elevator equipment usually will be provided with the emergency stop function, the device in above -mentioned in the generation emergency stop operation lacks the protection function of generator output shaft, generator output shaft will suddenly change from rotating state to stop state, will lead to the friction force between generator shaft and bearing, coupling and other connecting components instantaneous increase and uneven distribution, thereby aggravating the wear and tear affect the service life of device technical problem.

[0010] In order to realize above -mentioned purpose, the utility model passes through following technical scheme to realize:

[0011] An energy saving elevator energy feedback device equipment, including bottom plate, the bottom plate upper end portion is fixedly connected with generator, the generator outer surface is sleeved with first transmission shaft, the first transmission shaft outer surface is fixedly connected with fixed sleeve ring, the first transmission shaft outer surface is slidably connected with first protection ring, the fixed sleeve ring and first protection ring outer surface are fixedly connected with spring, the bottom plate upper end portion is provided with second protection ring.

[0012] Preferably: the first protection ring and second protection ring are adapted, the first transmission shaft outer surface is threadedly connected with the limiting sleeve ring, and the limiting sleeve ring is located on the outer surface of the first protection ring.

[0013] Preferably: the bottom plate upper end portion is fixedly connected with the mounting seat, the mounting seat is rotatably connected with the second transmission shaft in the inside, and the second protection ring is fixedly connected on the outer surface of the second transmission shaft.

[0014] Preferably: the second protection ring and the second transmission shaft are both threadedly connected with the bolt in the inside, and the second transmission shaft outer surface is sleeved with driven spur gear.

[0015] Preferably: the bottom plate upper end portion is fixedly connected with elevator traction machine, and the elevator traction machine is provided with connecting shaft in the inside.

[0016] Preferably: the connecting shaft outer surface is sleeved with driving spur gear, and the driving spur gear and driven spur gear are engaged.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] I, when the second protection ring is limited to lock, the first protection ring rotates along the inclined surface of the second protection ring, and the spring is pushed to shrink in the rotating process, and the displaceable amount is generated, through the sliding shrink of the first protection ring in rotation, the generator output shaft is avoided to stop suddenly and cause serious wear and tear, and the service life of the device is prolonged.

[0019] II. When the first protective ring and the second protective ring are used in the emergency stop protection, and need to be disassembled and maintained, first push the first protective ring to contract towards the end close to the generator, at this time the second protective ring can be disassembled by screwing the bolt, at this time the first transmission shaft installed outside the generator output shaft is disassembled as a whole for replacement, and the utilization rate of the second transmission shaft is improved through the detachable second protective ring. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following is the preferred embodiment of the utility model and the detailed description of the drawings as follows.

[0021] Figure 1 It is a perspective view of the utility model;

[0022] Figure 2 It is a generator connection diagram of the utility model;

[0023] Figure 3 It is a first transmission shaft connection explosion diagram of the utility model;

[0024] Figure 4 It is a spring connection explosion diagram of the utility model.

[0025] Legend: 11, bottom plate; 12, generator; 13, first transmission shaft; 14, fixed sleeve ring; 15, first protective ring; 16, spring; 17, second protective ring; 18, mounting seat; 19, second transmission shaft; 21, bolt; 22, driven spur gear; 23, elevator traction machine; 24, connecting shaft; 25, driving spur gear; 31, limiting sleeve ring. DETAILED DESCRIPTION

[0026] The embodiment of the application provides an energy-saving elevator energy feedback device equipment, which effectively solves the problem that the elevator equipment is usually provided with an emergency stop function to prevent elevator failure or sudden situation, the device lacks protection function for the generator output shaft in the emergency stop operation, the generator output shaft is suddenly changed from a rotating state to a stopped state, the friction between the generator shaft and the connecting parts such as bearings and shaft couplings is instantaneously increased and unevenly distributed, thereby aggravating the wear and affecting the service life of the device, when the second protective ring is limited and locked, the first protective ring rotates along the inclined surface of the second protective ring, and the spring is pushed to contract and generates a displaceable amount in the rotating process, the sliding contraction of the first protective ring in rotation avoids the sudden stop of the generator output shaft caused by the emergency stop of the equipment, thereby causing serious wear, and is beneficial to prolonging the service life of the device. EMBODIMENT

[0027] As Figure 1 ,Figure 2 、 Figure 3 and Figure 4 As shown in the technical scheme in the embodiments of the present application, the technical scheme effectively solves the technical problem that the above device lacks protection function for the generator output shaft in the emergency stop operation, the generator output shaft will suddenly change from a rotating state to a stopped state, which will cause the friction force between the generator shaft and the connecting components such as bearings and shaft couplings to instantaneously increase and be unevenly distributed, thereby aggravating the wear and affecting the service life of the device, and the overall idea is as follows: an energy feedback device for an energy-saving elevator, comprising a bottom plate 11, a generator 12 fixedly connected to the upper end of the bottom plate 11, a first transmission shaft 13 sleeved with the outer surface of the generator 12, a fixed sleeve ring 14 fixedly connected to the outer surface of the first transmission shaft 13, a first protection ring 15 slidingly connected to the outer surface of the first transmission shaft 13, a spring 16 fixedly connected to the outer surfaces of the fixed sleeve ring 14 and the first protection ring 15, a second protection ring 17 provided on the upper end of the bottom plate 11, the first protection ring 15 and the second protection ring 17 being adapted to each other, a limiting sleeve ring 31 threadedly connected to the outer surface of the first transmission shaft 13, the limiting sleeve ring 31 being located on the outer surface of the first protection ring 15, when the second protection ring 17 is locked, the first protection ring 15 rotates along the inclined surface of the second protection ring 17, and in the process of rotation, the spring 16 is pushed to contract and generates a displaceable amount, through the sliding contraction of the first protection ring 15 in rotation, the sudden stop of the generator 12 output shaft caused by the emergency stop of the device is avoided, thereby causing serious wear, and the service life of the device is prolonged.

[0028] The upper end of the bottom plate 11 is fixedly connected with a mounting seat 18, the second transmission shaft 19 is rotatably connected inside the mounting seat 18, the second protection ring 17 is fixedly connected to the outer surface of the second transmission shaft 19, and the second protection ring 17 and the second transmission shaft 19 are both threadedly connected with a bolt 21, when the first protection ring 15 and the second protection ring 17 are used for emergency stop protection and need to be disassembled and maintained, first, the first protection ring 15 is pushed to contract towards the end close to the generator 12, at this time, the second protection ring 17 can be disassembled by screwing the bolt 21, at this time, the first transmission shaft 13 mounted outside the generator 12 output shaft is disassembled as a whole for replacement, the second protection ring 17 is detachable, thereby improving the utilization rate of the second transmission shaft 19, and the cost required for maintenance of the device is reduced, the first transmission shaft 13 outside the first transmission shaft 13 is used for limiting the sliding first protection ring 15, and the spring 16 is installed on the surfaces of the fixed sleeve ring 14 and the first protection ring 15 by welding.

[0029] The outer surface of the second transmission shaft 19 is sleeved with a driven spur gear 22, the upper end of the bottom plate 11 is fixedly connected with an elevator hoisting machine 23, the inside of the elevator hoisting machine 23 is provided with a connecting shaft 24, the outer surface of the connecting shaft 24 is sleeved with a driving spur gear 25, the driving spur gear 25 and the driven spur gear 22 are engaged, when the elevator hoisting machine 23 used for controlling the lifting of the car in the elevator equipment works, the connecting shaft 24 will be rotated, that is, the connecting shaft 24 arranged in the rotating shaft of the elevator hoisting machine 23 will rotate with the rotating shaft of the elevator hoisting machine 23, the elevator hoisting machine 23 realizes the meshing transmission ratio of speed increasing through the engagement of the driving spur gear 25 and the driven spur gear 22, and more quickly drives the second transmission shaft 19 to rotate, the second transmission shaft 19 transmits the rotating power to the generator 12 through the first transmission shaft 13, the rotating power is converted into electric energy by the generator 12, and is stored in the storage battery through the transmission line and the like for use of other required electric components in the elevator equipment, the electric energy generated by the generator 12 when the elevator works is fed back to the elevator equipment system, so that the overall required power consumption of the elevator equipment is reduced, and the purpose of energy saving is achieved.

[0030] In view of the problems in the prior art, the utility model provides a kind of energy-saving elevator energy feedback device equipment, when second protection ring 17 is limited and locked, first protection ring 15 rotates along the inclined surface of second protection ring 17, and in the process of rotation, spring 16 is pushed to contract, and displacement can be generated, by the sliding contraction of first protection ring 15 when rotating, avoid the output shaft of generator 12 from stopping suddenly due to equipment emergency stop, thereby causing serious wear, which is conducive to prolonging the service life of the device.

[0031] Bottom plate 11: as the basic support structure of the entire energy-saving elevator energy feedback device equipment, provide stable installation plane for generator 12, mounting seat 18 and elevator hoisting machine 23 and other components, ensure the relative position of each component is fixed during operation, so that the entire device can work stably;

[0032] Generator 12: fixedly connected with bottom plate 11, receives rotating power through first transmission shaft 13 and converts it into electric energy;When the elevator works, the electric energy generated by generator 12 is stored in storage battery through transmission line and the like to power other electric components in the elevator equipment, realize energy feedback, thereby reducing the overall power consumption of the elevator equipment, achieving the purpose of energy saving;

[0033] First transmission shaft 13: sleeved on the outer surface of generator 12, one end is installed on the output shaft of generator 12, responsible for transmitting the rotating power of second transmission shaft 19 to the output shaft of generator 12 to drive it to rotate, and then make generator 12 generate electricity;Its outer surface is provided with fixed sleeve 14, first protection ring 15 and threaded connection limit sleeve 31, which work together to ensure the stability and safety of power transmission;

[0034] The fixed ring 14 is fixedly connected to the outer surface of the first transmission shaft 13 to provide a fixed support point for the spring 16. During the operation of the elevator, the fixed ring 14 cooperates with the first protection ring 15 to deal with possible abnormal conditions of the first transmission shaft 13 through the expansion and contraction of the spring 16, thereby ensuring the stability of the entire transmission system.

[0035] The first protection ring 15 is in contact with the second protection ring 17 during power transmission to achieve power transmission between the second transmission shaft 19 and the first transmission shaft 13. When the elevator suddenly stops, the first protection ring 15 will rotate along the inclined surface of the second protection ring 17 to push the spring 16 to contract and generate a displacement, thereby avoiding damage to the device integrity caused by the sudden stop of the output shaft of the generator 12, improving the safety of the device, and prolonging the service life of the device.

[0036] The spring 16 is fixedly connected to the outer surfaces of the fixed ring 14 and the first protection ring 15 at both ends to serve as a buffer and shock absorber. During normal operation of the elevator, it can absorb the slight vibration and impact generated by the first transmission shaft 13 during rotation. When the elevator suddenly stops, the spring 16 deforms by contracting to provide a displacement space for the first protection ring 15, thereby relieving the impact caused by inertia of the first transmission shaft 13 and protecting the output shaft of the generator 12 from damage.

[0037] The second protection ring 17 has a shape similar to a face gear and a triangular inclined surface shape at the contact position with the first protection ring 15. It is fixedly connected to the outer surface of the second transmission shaft 19 and cooperates with the first protection ring 15 to transmit the power of the second transmission shaft 19 to the first transmission shaft 13 during power transmission.

[0038] The mounting seat 18 is fixedly connected to the upper end of the bottom plate 11 and has the second transmission shaft 19 rotatably connected inside to provide a mounting and support structure for the second transmission shaft 19, ensuring that the second transmission shaft 19 can rotate stably and thereby ensuring smooth power transmission.

[0039] The second transmission shaft 19 is rotatably connected inside the mounting seat 18 and has the driven spur gear 22 sleeved on the outer surface. The driven spur gear 22 is engaged with the driving spur gear 25 to achieve speed-up transmission. At the same time, the second protection ring 17 is fixedly connected to the outer surface of the second transmission shaft 19 to transmit the rotational power from the driven spur gear 22 to the first transmission shaft 13 through the second protection ring 17 and the first protection ring 15, thereby driving the generator 12 to generate electricity.

[0040] The bolt 21 is threadedly connected inside the second protection ring 17 and the second transmission shaft 19 to fix the relative position of the second protection ring 17 and the second transmission shaft 19. The bolt 21 can be easily removed from the second transmission shaft 19 by screwing.

[0041] Driven spur gear 22: fitted on the outer surface of the second transmission shaft 19, engaged with the driving spur gear 25; when the elevator hoist 23 works, the power output by the elevator hoist 23 is transmitted to the second transmission shaft 19 through the engagement of the driving spur gear 25, and the speed-increasing engagement transmission ratio is realized, so that the second transmission shaft 19 rotates faster, thereby driving the generator 12 to generate power efficiently;

[0042] Elevator hoist 23: fixedly connected to the upper end of the base plate 11, serving as the power source for the elevator car to ascend and descend;

[0043] Connecting shaft 24: arranged in the rotating shaft inside the elevator hoist 23, which rotates together with the rotating shaft of the elevator hoist 23, transmits the power generated by the elevator hoist 23 to the driving spur gear 25, and drives the entire power transmission system of the energy feedback device;

[0044] Driving spur gear 25: fitted on the outer surface of the connecting shaft 24, engaged with the driven spur gear 22; when the elevator hoist 23 works, the driving spur gear 25 rotates with the connecting shaft 24, and the power of the elevator hoist 23 is transmitted to the second transmission shaft 19 through the engagement of the driven spur gear 22, and the speed-increasing engagement transmission ratio is realized to meet the demand for high-speed rotation of the generator 12 for efficient power generation;

[0045] Limiting sleeve 31: threaded on the outer surface of the first transmission shaft 13, located on the outer surface of the first protective ring 15, used to limit the sliding of the first protective ring 15, prevent the first protective ring 15 from slipping off the first transmission shaft 13 during the sliding process, ensure the normal work of the first protective ring 15 within the designed stroke range, and ensure the effectiveness of the entire protection mechanism.

[0046] Working principle:

[0047] First, when the elevator hoist 23 used to control the elevator car to ascend and descend works, it will drive the connecting shaft 24 to rotate, i.e. the connecting shaft 24 is arranged in the rotating shaft inside the elevator hoist 23, which rotates together with the rotating shaft of the elevator hoist 23. The elevator hoist 23 realizes the speed-increasing engagement transmission ratio through the engagement of the driving spur gear 25 and the driven spur gear 22, and drives the second transmission shaft 19 to rotate faster. The second transmission shaft 19 transmits the rotating power to the generator 12 through the first transmission shaft 13 (the first transmission shaft 13 is installed on the output shaft of the generator 12, and drives the output shaft of the generator 12 to rotate to transmit power), and the rotating power is converted into electrical energy by the generator 12, and stored in the storage battery through transmission lines and other means for use by other electrical components required in the elevator equipment. The electrical energy generated by the generator 12 during the operation of the elevator is fed back to the elevator equipment system to reduce the overall power consumption of the elevator equipment, thereby achieving the purpose of energy saving.

[0048] Second step, in the transmission of the rotating power, the second transmission shaft 19 and the first transmission shaft 13 realize power transmission by the second protection ring 17 and the first protection ring 15, the second protection ring 17 and the first protection ring 15 are similar to face gear shape, and the contact position is triangular inclined surface shape, when the elevator is controlled to produce emergency stop operation, the second transmission shaft 19 is locked by the meshing of the driven spur gear 22 and the driving spur gear 25, at this time the first transmission shaft 13 is in the state of gradually decaying speed due to inertia, when the second protection ring 17 is locked, the first protection ring 15 rotates along the inclined surface of the second protection ring 17, and pushes the spring 16 to shrink in the rotating process, and generates a displacement, through the sliding shrink of the first protection ring 15 in the rotation, the sudden stop of the generator 12 output shaft caused by the emergency stop of the equipment is avoided, so as to prolong the service life of the device, when the first protection ring 15 and the second protection ring 17 are used after the emergency stop protection, the first protection ring 15 is pushed to shrink towards the end close to the generator 12, at this time the second protection ring 17 can be disassembled by screwing the bolt 21, at this time the first transmission shaft 13 installed outside the generator 12 output shaft is disassembled and replaced as a whole, the utilization rate of the second transmission shaft 19 is improved by the detachable second protection ring 17, which is beneficial to reduce the cost required for device maintenance, the first transmission shaft 13 is used for limiting the sliding first protection ring 15, and the spring 16 is installed on the surface of the fixed sleeve ring 14 and the first protection ring 15 by welding.

[0049] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or changes derived therefrom are still within the protection scope of the utility model.

Claims

1. An energy-saving elevator energy feedback device apparatus, comprising a bottom plate (11), the upper end of the bottom plate (11) is fixedly connected with a generator (12), characterized in that, The generator (12) is sleeved with a first transmission shaft (13) on the outer surface, the first transmission shaft (13) is fixedly connected with a fixed sleeve ring (14) on the outer surface, the first transmission shaft (13) is slidably connected with a first protection ring (15) on the outer surface, and the fixed sleeve ring (14) and the first protection ring (15) are fixedly connected with springs (16) on the outer surfaces. Wherein, the bottom plate (11) is provided with a second protection ring (17) on the upper end.

2. An energy saving elevator energy feedback device apparatus as claimed in claim 1, wherein, The first protection ring (15) and the second protection ring (17) are matched with each other. Wherein, the first transmission shaft (13) is threadedly connected with a limiting sleeve ring (31) on the outer surface, and the limiting sleeve ring (31) is located on the outer surface of the first protection ring (15).

3. An energy saving elevator energy feedback device apparatus as claimed in claim 2, wherein, The bottom plate (11) is fixedly connected with a mounting seat (18) on the upper end. Wherein, the second protection ring (17) is fixedly connected on the outer surface of a second transmission shaft (19), and the mounting seat (18) is rotatably connected with the second transmission shaft (19) inside.

4. An energy saving elevator energy feedback device apparatus as claimed in claim 3, wherein, The second protection ring (17) and the second transmission shaft (19) are both threadedly connected with bolts (21) inside. Wherein, the second transmission shaft (19) is sleeved with a driven spur gear (22) on the outer surface.

5. An energy saving elevator energy feed-back device apparatus as claimed in claim 4, wherein, The bottom plate (11) is fixedly connected with an elevator traction machine (23) on the upper end. Wherein, the elevator traction machine (23) is provided with a connecting shaft (24) inside.

6. An energy saving elevator energy feed-back device apparatus as claimed in claim 5, wherein, The connecting shaft (24) is sleeved with a driving spur gear (25) on the outer surface. Wherein, the driving spur gear (25) and the driven spur gear (22) are engaged with each other.

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