CN210949373U

CN210949373U - Hydraulic hoist with battery-driven emergency operation device

Info

Publication number: CN210949373U
Application number: CN201922162727.0U
Authority: CN
Inventors: 吴建平; 钱路; 顾昊; 严鹏
Original assignee: Changzhou Zhongsheng Hydraulic Engineering Co ltd
Current assignee: Changzhou Zhongsheng hoist Technology Co.,Ltd.
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-07
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to a contain battery drive type emergency operation device's hydraulic hoist. The hydraulic hoist include: a power device and a control and regulation device; the power device comprises a power supply driving assembly and a hydraulic pump, the power supply driving assembly comprises a battery manager, a battery pack and a direct current motor, the battery pack is electrically connected with the battery manager, the direct current motor is electrically connected with the battery pack, and the hydraulic pump is electrically connected with the direct current motor; the control and regulation device comprises an oil tank, a hydraulic cylinder and a hydraulic control valve group, wherein the oil tank is connected with the hydraulic pump through a valve pipeline, and the hydraulic cylinder and the hydraulic control valve group are respectively installed on the valve pipeline. The hydraulic hoist with the battery-driven emergency operating device has the advantages of small environmental pollution and high reliability.

Description

Hydraulic hoist with battery-driven emergency operation device

Technical Field

The utility model relates to a hydraulic hoist technical field especially relates to a hydraulic hoist who contains driving emergency operation device of battery.

Background

The hydraulic hoist generally comprises a hydraulic system and a hydraulic cylinder, and under the control of the hydraulic system, a piston body in the hydraulic cylinder makes axial reciprocating motion along the inner wall of the hydraulic cylinder, so that a connecting rod and a gate connected to the piston are driven to make linear motion, and the purpose of opening and closing an orifice is achieved. The traditional hydraulic hoist emergency operation device adopts a diesel internal combustion engine as power to drive a hydraulic pump to execute emergency operation of the hydraulic hoist, but the hydraulic hoist emergency operation device is placed in a narrow hoist room, the tail gas discharged after starting is seriously polluted and has huge noise, and the environmental protection requirement cannot be passed. Because the equipment is emergency standby equipment, the long-term storage of the diesel oil has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Therefore, the hydraulic hoist with the battery-driven emergency operation device has the advantages of small environmental pollution and high reliability, and is necessary to solve the problems of environmental pollution and potential safety hazard of the emergency operation device of the hydraulic hoist in the prior art.

A hydraulic hoist including a battery-driven emergency operating device, said hydraulic hoist comprising: a power device and a control and regulation device; the power device comprises a power supply driving assembly and a hydraulic pump, the power supply driving assembly comprises a battery manager, a battery pack and a direct current motor, the battery pack is electrically connected with the battery manager, the direct current motor is electrically connected with the battery pack, and the hydraulic pump is electrically connected with the direct current motor; the control and regulation device comprises an oil tank, a hydraulic cylinder and a hydraulic control valve group, wherein the oil tank is connected with the hydraulic pump through a valve pipeline, and the hydraulic cylinder and the hydraulic control valve group are respectively installed on the valve pipeline.

In one embodiment, a piston is arranged inside the hydraulic cylinder, and a piston rod partially protruding outside the hydraulic cylinder is connected to the piston.

In one embodiment, the end of the piston rod remote from the piston is provided with a coupling lug.

In one embodiment, the outer side wall of the hydraulic cylinder is provided with a support frame.

In one embodiment, the hydraulic control valve set comprises a throttle valve and an overflow valve, the throttle valve is arranged on a valve pipeline connected with the hydraulic cylinder, and the overflow valve is arranged between the hydraulic pump and the oil tank.

In one embodiment, the hydraulic control valve assembly further comprises a stop valve, and the stop valve is arranged on a valve pipeline between the hydraulic cylinder and the oil tank.

In one embodiment, the hydraulic control valve assembly further comprises a check valve disposed at an outlet of the hydraulic pump.

In one embodiment, the output valve pipeline of the check valve is provided with a pressure gauge.

In one embodiment, the number of the hydraulic pumps is two, and the two hydraulic pumps are in alternate switching connection with each other.

In one embodiment, the hydraulic cylinder comprises a double acting hydraulic cylinder.

Above-mentioned hydraulic hoist that contains battery-driven emergency operation device is through setting up the power drive subassembly that includes battery manager, battery package and direct current motor to the realization adopts the battery manager to manage the charge and discharge of battery package, and the battery package is to direct current motor power supply so that drive hydraulic pump operation, and then realizes driving control adjusting device work through the hydraulic pump, realizes that hydraulic hoist normally works. Therefore, when the power supply and the electrical control system or the motor of the hydraulic hoist break down, the power consumption requirement of the power supply of the hydraulic hoist is controlled to carry out corresponding emergency operation by switching to the battery pack power supply mode, so that the potential safety hazard is effectively reduced, and the environmental pollution can be effectively reduced by adopting the battery power supply mode.

Drawings

Fig. 1 is a diagram of a control system for a hydraulic hoist including an electric battery driven emergency operation device according to an embodiment.

Fig. 2 is a schematic structural view of a hydraulic hoist including an electric battery driven emergency operation device according to an embodiment.

Fig. 3 is a partial structural view of a hydraulic hoist including an electric battery driven emergency operation device according to an embodiment.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a hydraulic hoist including a battery-driven emergency operation device, the hydraulic hoist comprising: a power device and a control and regulation device; the power device comprises a power supply driving assembly and a hydraulic pump, the power supply driving assembly comprises a battery manager, a battery pack and a direct current motor, the battery pack is electrically connected with the battery manager, the direct current motor is electrically connected with the battery pack, and the hydraulic pump is electrically connected with the direct current motor; the control and regulation device comprises an oil tank, a hydraulic cylinder and a hydraulic control valve group, wherein the oil tank is connected with the hydraulic pump through a valve pipeline, and the hydraulic cylinder and the hydraulic control valve group are respectively installed on the valve pipeline.

The hydraulic hoist with the battery-driven emergency operating device will be described with reference to specific embodiments to further understand the inventive concept of the hydraulic hoist with the battery-driven emergency operating device. Referring to fig. 1, in one embodiment, a hydraulic hoist including a battery-driven emergency operation device, the hydraulic hoist 10 includes: a power device 100 and a control and regulation device 200; the power device 100 comprises a power supply driving assembly 110 and a hydraulic pump 120, wherein the power supply driving assembly 110 comprises a battery manager 111, a battery pack 112 and a direct current motor 113, the battery pack 112 is electrically connected with the battery manager 111, the direct current motor 113 is electrically connected with the battery pack 112, and the hydraulic pump 120 is electrically connected with the direct current motor 113; the control and regulation device 200 includes an oil tank 210, a hydraulic cylinder 220 and a hydraulic control valve group 230, the oil tank 210 is connected to the hydraulic pump 120 through a valve pipeline, and the hydraulic cylinder 220 and the hydraulic control valve group 230 are respectively installed on the valve pipeline.

Specifically, the battery manager 111 is an electric control device for controlling charging and discharging of the battery pack, the battery pack 112 is a power supply device for discharging electric energy, and the dc motor 113 is a rotating device for converting dc electric energy into mechanical energy. Specifically, the battery pack 112 provides a dc power to the dc motor 113, so that the dc motor 113 outputs mechanical energy to drive the hydraulic pump 120 to rotate.

Specifically, the hydraulic pump 120 is a power element of the hydraulic system, and functions to supply pressure oil to the hydraulic system, and from the energy conversion perspective, it converts mechanical energy output by a prime mover (e.g., an engine) into pressure energy of a fluid for delivery. The hydraulic cylinder 220 belongs to an actuator, and can convert pressure energy of input liquid into mechanical energy of output shaft rotation, so as to drag a load to do work. The oil tank 210 is an oil storage device, which can deposit impurities in oil, separate water and air in oil, and the oil tank 210 also has a heat dissipation function.

In one embodiment, the battery manager 111 includes a central processing module and a local measurement module electrically connected to each other, and the central processing module is used for communicating with an upper computer. Furthermore, the local measurement module comprises a data acquisition module, a charging control module, a balancing module, an electric quantity estimation module and a storage communication module which are electrically connected with each other, and the storage communication module is connected with the central processing module. Illustratively, the communication connection between the local measurement module and the central processing module is realized by using a CAN bus technology. The data acquisition module is responsible for acquiring various state parameters of the battery pack, such as current, voltage and temperature; the charging control module carries out automatic charging according to three stages of pre-charging, constant-current charging and constant-voltage charging, and controls the charging and discharging process according to the acquired data; the balancing module performs balanced charging on a single battery through a 15W switching power supply at a proper time, so that the batteries in the battery pack are more balanced and consistent; the electric quantity estimation module is mainly used for analyzing the acquired state parameters and estimating the current electric quantity of the battery according to an electric quantity estimation algorithm obtained by research tests; the storage communication module stores the charging and discharging information (voltage, current, charging and discharging time and the like) at regular time through the storage chip, and can communicate with a computer through a serial port to display the charging and discharging information on the computer.

In one embodiment, the battery pack 112 includes a plurality of interconnected batteries. That is, the battery pack 112 is a power supply module constituted by a set of batteries. In one embodiment, the battery pack 112 includes a battery or a fuel cell. In this embodiment, a storage battery is mainly used, and the storage battery is also called a secondary battery, i.e. a rechargeable battery, such as: lead-acid batteries, nickel-based batteries, lithium batteries, air batteries, and the like.

In one embodiment, the dc motor 113 comprises a brushed dc motor or a brushless dc motor. The brushless direct current motor is a novel direct current motor which is developed in recent years along with the development of microprocessor technology, the application of novel power electronic devices with high switching frequency and low power consumption, the optimization of a control method and the appearance of permanent magnet materials with low cost and high magnetic energy level. The brushless dc motor is preferably used in this embodiment, mainly because the brushless dc motor not only maintains the good speed-adjusting performance of the conventional dc motor, but also has the advantages of no sliding contact and commutation spark, high reliability, long service life, low noise, etc.

In one embodiment, the hydraulic pump 120 comprises a plunger pump. The plunger pump has high volumetric efficiency, small leakage and high working pressure, so that the plunger pump can be applied to a high-power hydraulic system. In the present embodiment, since the hydraulic pump 120 is applied to a gate control system in a large reservoir or the like, a plunger pump type hydraulic pump is preferably used. In one embodiment, the number of the hydraulic pumps 120 is two, and the two hydraulic pumps 120 are connected in a backup switching manner. That is, one of the hydraulic pumps 120 is a working hydraulic pump, and the other is a backup hydraulic pump, and when the working hydraulic pump fails, the hydraulic pumps can be switched by turning off and opening the corresponding valves.

In one embodiment, referring to fig. 2, a piston 221 is disposed inside the hydraulic cylinder 220, and the piston 221 is connected to a piston rod 222 partially protruding outside the hydraulic cylinder. That is, the piston 221 of the hydraulic cylinder 220 reciprocates axially along the inner wall of the hydraulic cylinder, thereby driving the piston rod connected to the piston to move linearly. Further, an end of the piston rod 222 remote from the piston is provided with a coupling lug 223. Wherein the engaging lug 223 is used to connect a gate or other shut-off mechanism for opening or closing the aperture. Further, the outer side wall of the hydraulic cylinder 220 is provided with a support frame 224. For example, the support 224 is a triangular bracket. This facilitates stable mounting of the hydraulic cylinder 220. In one embodiment, the hydraulic cylinder comprises a double acting hydraulic cylinder. The pressure pushing effect can be effectively improved by adopting the double-acting hydraulic cylinder.

In one embodiment, referring to fig. 1 again, the hydraulic control valve assembly 230 includes a throttle 231 and an overflow valve 232, the throttle 231 is disposed on a valve pipeline connected to the hydraulic cylinder 220, and the overflow valve 232 is disposed between the hydraulic pump 120 and the oil tank 210. Further, the hydraulic control valve assembly 230 further includes a stop valve 233, and the stop valve 233 is disposed on a valve pipeline between the hydraulic cylinder 220 and the oil tank 210. Further, the hydraulic control valve assembly 230 further includes a check valve 234, and the check valve 234 is disposed at an outlet of the hydraulic pump 120. Preferably, the output valve line of the check valve 234 is provided with a pressure gauge 235. By monitoring the hydraulic supply pressure after the hydraulic pump is started, an operator can read data through the pressure gauge 235, obtain whether the supply pressure meets the required pressure value, and correspondingly improve the size of an output valve of the hydraulic pump so as to adjust the supply pressure of the hydraulic oil.

More specifically, the control loop for controlling the regulating device 200 is as follows:

hydraulic pump 120 → check valve 234 → spill valve 232 → tank 210

Check valve 234 → throttle valve 231 → hydraulic cylinder 220

Hydraulic cylinder 220 → throttle 231 → stop valve 233 → return pipe → tank 210

Oil tank 210 → oil suction pipe → hydraulic pump 120

Above-mentioned hydraulic hoist 10 that contains battery-driven emergency operation device is through setting up the power drive assembly that includes battery manager 111, battery package 112 and direct current motor 113 to the realization adopts battery manager 111 to manage the charge and discharge of battery package 112, and battery package 112 supplies power so that drive hydraulic pump 120 operation to direct current motor 113, and then realizes driving control adjusting device 200 work through hydraulic pump 120, realizes that hydraulic hoist normally works. Therefore, when the power supply and the electrical control system or the motor of the hydraulic hoist break down, the power consumption requirement of the power supply of the hydraulic hoist is controlled to carry out corresponding emergency operation by switching to the battery pack power supply mode, so that the potential safety hazard is effectively reduced, and the environmental pollution can be effectively reduced by adopting the battery power supply mode.

In order to effectively improve the operation safety, in one embodiment, the power device further comprises an operation trolley, and the power driving assembly, the hydraulic pump and part of the valve pipeline are arranged in the operation trolley. Furthermore, the operation trolley comprises a compartment and an operation control box arranged on the top of the compartment. Furthermore, a control panel is arranged on the surface of the control box and is electrically connected with the battery manager. The control panel is a liquid crystal display screen for displaying data display information, and can display data information such as voltage, charging and discharging current, residual electric quantity, battery temperature, charging time and the like of each battery in the battery pack. Therefore, the live equipment is accommodated in the carriage of the operation trolley, the personal safety of operators can be effectively guaranteed, and meanwhile, the operation panel arranged on the operation box can be used for accurately acquiring related data information.

In order to facilitate the rapid control of the start of the dc motor, in one embodiment, a motor start key and a motor stop key for controlling the start and stop of the dc motor are further disposed on the surface of the control box. The motor start key and the motor stop key are both push type operation buttons, specifically, the motor start key is marked as a red button, the motor stop key is marked as a green button, and an operator controls the direct current motor to start and stop according to the corresponding buttons.

In order to facilitate timely charging of the battery pack, in one embodiment, the control box is further provided with a power line, and the power line is connected with the battery pack. The external power supply and the battery pack are communicated through the power line, so that when the battery pack needs to be charged, the external power supply is communicated through the power line for charging, and the battery pack is kept in a full-load state so as to be used under an emergency condition.

In order to change the position of the operating trolley according to actual needs on site, in one embodiment, a pulley is arranged at the bottom of the compartment. Specifically, four feet of the bottom of the carriage are respectively provided with a pulley, or the bottom of the carriage is symmetrically provided with two pulleys at intervals. Like this, can realize anytime and anywhere quick travel operation dolly through the setting of pulley, further, the pulley is provided with the self-locking piece. That is, the pulley can be fixed at a certain position by the self-locking member without displacement. Therefore, when the operation trolley needs to be fixed, the pulley is fixed by the self-locking piece and does not move.

In order to facilitate timely heat dissipation of electric components arranged in the operating trolley, in one embodiment, the side wall of the compartment is provided with a plurality of heat dissipation holes. It should be understood that the battery pack with the charging and discharging functions, the gravity flow motor and the hydraulic pump are all the electric equipment, and when the electric equipment is powered on, heat is inevitably generated, so that the electric equipment needs to be timely radiated to avoid reducing the service life of each electric equipment due to long-term high-temperature environment. In a preferred embodiment, the hydraulic hoist includes a heat dissipation assembly disposed proximate to the power device. Specifically, radiator unit includes installed part and radiating piece, installed part demountable installation is on the railway carriage, radiating piece sets up on the installed part. Further, the heat sink includes an induced draft fan or a direct blow fan. Wherein, the direct-blowing type radiator fan has fast heat dissipation and low noise, and can improve the conversion efficiency of the battery pack.

In order to accurately detect the hydraulic oil level and the oil temperature of the hydraulic hoist, in an embodiment, please refer to fig. 3, the control and regulation device 200 further includes a detection element 240, the detection element 240 includes a liquid level temperature meter 241, a liquid temperature sensor 242 and a liquid level sensor 243 which are all disposed in the oil tank, and the liquid level temperature meter 241 is connected to the liquid temperature sensor 242 and the liquid level sensor 243. Specifically, when the oil reaches the high level, the liquid level sensor 243 sends a signal at the high level to alarm; when the oil reaches the low level, the level sensor 243 sends a signal to alarm when the oil reaches the low level. In order to further control the oil temperature, in one embodiment, the control and regulation device 200 further includes a heater 250, and the heater 250 is used for controlling the oil temperature of the oil tank. Specifically, according to the temperature information detected by the liquid temperature sensor 242, when the oil temperature is too low, the heater is turned on; when the temperature of the oil is high, the heater is switched off; when the temperature is too high, a signal is sent out for alarming; when the temperature is too low, an alarm is sent. It should be understood that the temperature and the liquid level are sensed by the liquid temperature sensor 242 and the liquid level sensor 243 respectively, so as to transmit the sensing signal to the liquid level liquid temperature meter 241, and the specific corresponding data is displayed by the liquid level liquid temperature meter 241, so that an operator can know the condition of the hydraulic system of the hydraulic hoist in time, and accurately detect and control and adjust the hydraulic oil level and the oil temperature of the hydraulic hoist.

In order to ensure smooth oil return of the hydraulic system of the hydraulic hoist, in one embodiment, the control and regulation device 200 further includes an oil return filter 260, and the oil return filter 260 is disposed between the oil tank and the hydraulic pump. Thus, the return oil filter 260 can ensure smooth circulation of return oil, and when the return oil filter is blocked, an audible and visual alarm can be given to remind of cleaning or replacing the filter.

In order to stabilize the oil pressure, in one embodiment, the control and regulation device 200 further includes an air filter 270, and the air filter 270 communicates with the oil tank, the hydraulic cylinder, and the hydraulic control valve group. Generally, when a hydraulic system of the hoist is installed or used, cavitation, vibration, noise, creeping, slow response and soft operation are generated in the operation of a hydraulic oil system, so that the oil aging is accelerated. The impurities such as water and air cause the pollution of the oil liquid of the hydraulic system, can be adhered and block a filter, a servo valve and a valve hole, increase the abrasion of a pump and a moving part, cause the cavitation of the oil pump, accelerate the aging and deterioration of the oil and influence the safety of the hydraulic working system. Hydraulic oil generally needs to be replaced at this moment, so that great waste is caused, air and moisture can be effectively removed by arranging the air filter 270, and therefore normal operation of a hydraulic system is ensured, and stable oil pressure supply is facilitated.

In a specific embodiment, the control and regulation device 200 further comprises a hydraulic supply system 280, wherein the hydraulic supply system 280 comprises an oil pan base 281 and an oil suction assembly 282, a motor-pump set 283, a pump station outlet pressure pipe 284, an oil discharge assembly 285 and a high pressure hose 286 which are connected with each other. The oil receiving tray base 281 is a bearing mounting base, and the power driving assembly 110 and parts of the partial control and regulation device 200 are all arranged on the oil receiving tray base 281. Hydraulic oil enters the motor-pump set 283 through the oil intake assembly 282 and passes through the high pressure hose 286 to the pump station outlet pressure pipe 284, where it is finally discharged through the oil discharge assembly 285. In one embodiment, the hydraulic control valve block 230 includes a pressure regulating valve block assembly 236 and a control valve block assembly 237 connected to each other. Thus, hydraulic oil can be controlled and regulated to accommodate the power requirements of the hoist by the pressure regulating block assembly 236 and the control valve block assembly 237.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A hydraulic hoist including a battery-driven emergency operation device, characterized in that the hydraulic hoist includes: a power device and a control and regulation device;

the power device comprises a power supply driving assembly and a hydraulic pump, the power supply driving assembly comprises a battery manager, a battery pack and a direct current motor, the battery pack is electrically connected with the battery manager, the direct current motor is electrically connected with the battery pack, and the hydraulic pump is electrically connected with the direct current motor;

the control and regulation device comprises an oil tank, a hydraulic cylinder and a hydraulic control valve group, wherein the oil tank is connected with the hydraulic pump through a valve pipeline, and the hydraulic cylinder and the hydraulic control valve group are respectively installed on the valve pipeline.

2. The hydraulic hoist having a battery-driven emergency operation device according to claim 1, wherein a piston is provided inside the hydraulic cylinder, and the piston is connected to a piston rod partially protruding outside the hydraulic cylinder.

3. The hydraulic hoist having an electric battery driven type emergency operation device according to claim 2, wherein an end of the piston rod remote from the piston is provided with a lug.

4. The hydraulic hoist having a battery-driven emergency operation device according to claim 1, characterized in that a support bracket is provided to an outer side wall of the hydraulic cylinder.

5. The hydraulic hoist with the battery-driven emergency operation device according to claim 1, wherein the hydraulic control valve group includes a throttle valve provided on a valve line connecting the hydraulic cylinder and an overflow valve provided between the hydraulic pump and the oil tank.

6. The hydraulic hoist with battery-driven emergency operation device according to claim 1, wherein the hydraulic control valve group further includes a stop valve provided on a valve line between the hydraulic cylinder and the oil tank.

7. The hydraulic hoist having an electric battery driven emergency operation device according to claim 1, wherein the hydraulic control valve block further includes a check valve provided at an outlet of the hydraulic pump.

8. The hydraulic hoist having an electric cell driven type emergency operation device according to claim 7, wherein the output valve line of the check valve is provided with a pressure gauge.

9. The hydraulic hoist having an electric battery driving type emergency operating device according to claim 1, characterized in that the number of the hydraulic pumps is two, and the two hydraulic pumps are connected to each other in a backup switching manner.

10. The hydraulic hoist having an electric battery driven emergency operation device of claim 1, wherein the hydraulic cylinder includes a double acting hydraulic cylinder.