阅读说明：本技术 一种节能液压油缸升降系统 (Energy-saving hydraulic oil cylinder lifting system ) 是由 张炳正 陈炜 于 2019-03-15 设计创作，主要内容包括：本发明涉及一种节能液压油缸升降系统,包括液压油缸顶升系统、轿厢,液压油缸顶升系统包括液压油缸、液压蓄能装置、液压泵,液压油缸包括缸体、活塞,缸体包括主缸腔、辅缸腔,液压泵与主缸腔底部连通,液压蓄能装置与辅缸腔底部连通,活塞包括活塞驱动端、活塞传动端,活塞驱动端包括形成并连的主塞、辅塞,主塞设在主缸腔内,辅塞设在辅缸腔内,液压泵将液压油泵入主缸腔推动主塞向上运动,液压蓄能装置将液压油释放入辅缸腔推动辅塞与主塞联动顶升轿厢,轿厢依靠自身重力下行将主缸腔、辅缸腔内的液压油排回液压泵、液压蓄能装置。本发明公开了新的方案,采用具有储能、节能设计的液压油缸提高能源的利用率,具有能源利用率高的特点。(The invention relates to an energy-saving hydraulic oil cylinder lifting system which comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity and an auxiliary cylinder cavity, the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston driving end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic pump pumps hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to be linked with the main plug to lift the lift car, and. The invention discloses a new scheme, which adopts a hydraulic oil cylinder with energy storage and energy-saving design to improve the utilization rate of energy and has the characteristic of high energy utilization rate.)

1. The utility model provides an energy-conserving hydraulic cylinder operating system, characterized by includes hydraulic cylinder jacking system, car, hydraulic cylinder jacking system includes hydraulic cylinder, hydraulic energy storage device, hydraulic pump, hydraulic cylinder includes cylinder body, piston, the cylinder body includes master cylinder chamber, assists the cylinder chamber, the hydraulic pump with master cylinder chamber bottom intercommunication, hydraulic energy storage device with assist cylinder chamber bottom intercommunication, the piston includes piston drive end, the piston drive end is including forming main stopper, the assistance stopper of parallel connection, main stopper is established in the master cylinder chamber, assist the stopper to establish assist the cylinder intracavity, the hydraulic pump is pumped hydraulic oil the master cylinder chamber promotes the main stopper moves upwards, hydraulic energy storage device releases hydraulic oil the assistance cylinder chamber promotes assist the stopper with main stopper linkage jacking the car, the car relies on self gravity down will the master cylinder chamber will, And the hydraulic oil in the auxiliary cylinder cavity is discharged back to the hydraulic pump and the hydraulic energy storage device, and the discharged back hydraulic oil forms an energy storage state in the hydraulic energy storage device.

2. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein the energy-saving hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder lifting system A and a hydraulic oil cylinder lifting system B, a piston transmission end A of the hydraulic oil cylinder lifting system A is connected with a piston transmission end B of the hydraulic oil cylinder lifting system B through a frame beam, the middle of the frame beam is connected with the top of the car through a universal connector, and the car moves upwards under the pushing of the hydraulic oil cylinder lifting system A and the hydraulic oil cylinder lifting system B.

3. The energy-saving hydraulic oil cylinder lifting system according to claim 1, characterized in that a buffer plate assembly is arranged at the bottom of the car, the buffer plate assembly comprises an upper panel and a lower panel, a plurality of elastic components are arranged between the upper panel and the lower panel, the upper panel and the lower panel are elastically connected through the elastic components, and the car is in buffer contact with an external structure through the elastic connections.

4. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein the main plug comprises a piston head section and a piston rod section, the piston head section divides the main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other, the bottom of the lower cylinder cavity is communicated with the hydraulic pump, the upper cylinder cavity is communicated with an oil storage cabinet of the hydraulic pump, the hydraulic pump pumps hydraulic oil in the oil storage cabinet into the lower cylinder cavity so that the piston head section moves upwards to discharge hydraulic oil in the upper cylinder cavity into the oil storage cabinet, and the car descends to discharge hydraulic oil in the lower cylinder cavity back into the oil storage cabinet and simultaneously pump hydraulic oil in the oil storage cabinet back into the upper cylinder cavity.

5. The energy-saving hydraulic oil cylinder lifting system according to claim 4, wherein a liquid inlet groove is formed in the surface of the piston head section on one side of the upper cylinder cavity, the liquid inlet groove is communicated with a channel in the piston rod section to form a liquid conveying channel, the liquid conveying channel is communicated with a oil storage cabinet of the hydraulic pump, and hydraulic oil flows into or flows out of the upper cylinder cavity through the liquid conveying channel.

6. The energy saving hydraulic ram lifting system according to claim 4, wherein the hydraulic pump is communicated with the bottom of the lower cylinder chamber through a flow valve A, a conservator of the hydraulic pump is communicated with the upper cylinder chamber through a flow valve B, and the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston.

7. The energy-saving hydraulic oil cylinder lifting system according to claim 4, wherein a plurality of circumferentially arranged sealing ring grooves are formed in the side surface of the piston head section opposite to the inner wall of the main cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the piston head section divides the main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other through the sealing rings.

8. The energy-saving hydraulic oil cylinder lifting system according to claim 4, wherein a plurality of sealing ring grooves are circumferentially arranged on the inner side wall of the edge of the output end outlet of the main cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.

9. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein the cylinder body is of a cylindrical structure, the main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, the auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, the main plug is of a cylindrical structure, the auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure.

10. The energy-saving hydraulic cylinder lifting system according to claim 9, wherein a plurality of sealing ring grooves are circumferentially arranged on the inner side wall of the edge of the output end outlet of the auxiliary cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the auxiliary cylinder cavity is in sealing sliding connection with the auxiliary plug through the sealing rings.

Technical Field

The invention relates to a hydraulic cylinder lifting system, in particular to an energy-saving hydraulic cylinder lifting system, and belongs to the field of hydraulic cylinders.

Background

The hydraulic oil cylinder is a driving device driven by hydraulic pressure, is a very important part in hydraulic machinery, plays the role of an output execution element in the whole hydraulic machinery, and converts hydraulic energy into mechanical energy in the whole transmission process. The hydraulic oil cylinder has the following advantages: the hydraulic system adopting the hydraulic oil cylinder can be used as a high-power output element, and has a larger pressure range compared with a cylinder of a pneumatic system; the compression rate of the air is far greater than that of hydraulic oil, so that the working stability and the transmission response capability of the hydraulic oil cylinder are far stronger than those of an air cylinder. Therefore, the hydraulic oil cylinder has the advantages of simple structure, large output force, stable and reliable performance, convenient use and maintenance, wide application range and the like.

Disclosure of Invention

The invention discloses a novel scheme for an energy-saving hydraulic oil cylinder lifting system, which adopts a hydraulic oil cylinder with energy storage and energy-saving design to improve the utilization rate of energy and solves the problem of low energy utilization rate of the existing scheme.

The energy-saving hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity, the hydraulic lift car lifting device comprises a main cylinder cavity, a hydraulic pump, a hydraulic energy storage device, a piston and a hydraulic energy storage device, wherein the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston transmission end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic pump pumps hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to lift the car in a linkage manner with the main plug, the car discharges the hydraulic oil in the main cylinder cavity and the auxiliary cylinder.

Further, the energy-conserving hydraulic cylinder operating system of this scheme includes hydraulic cylinder jacking system A, hydraulic cylinder jacking system B, and hydraulic cylinder jacking system A's piston drive end A is connected with hydraulic cylinder jacking system B's piston drive end B through putting up the roof beam, and the middle part of putting up the roof beam is passed through universal connector and is connected with the top of car, and the car is at hydraulic cylinder jacking system A, upward movement under hydraulic cylinder jacking system B's the common promotion.

Further, the bottom of the car of this scheme is equipped with the buffer board subassembly, and the buffer board subassembly includes top panel, lower panel, is equipped with a plurality of elastomeric element between top panel and the lower panel, and the top panel passes through elastomeric element with the lower panel and forms elastic connection, and the car forms the buffering contact through above-mentioned elastic connection and exterior structure.

Furthermore, the main stopper of this scheme includes piston head section, piston rod section, piston head section separates into upper cylinder chamber, lower cylinder chamber that each other does not communicate with the main cylinder chamber, the bottom and the hydraulic pump intercommunication in lower cylinder chamber, upper cylinder chamber and the oil conservator intercommunication of hydraulic pump, hydraulic pump makes piston head section upward movement arrange into the oil conservator with the hydraulic oil in the upper cylinder intracavity in lower cylinder chamber with the hydraulic oil pump in the oil conservator, the car descends and withdraws the upper cylinder chamber with the hydraulic oil in the oil conservator when arranging the oil conservator back with the hydraulic oil in the lower cylinder intracavity.

Furthermore, the surface of the piston head section on one side of the upper cylinder cavity is provided with a liquid inlet groove, the liquid inlet groove is communicated with a channel in the piston rod section to form a transfusion channel, the transfusion channel is communicated with an oil storage cabinet of the hydraulic pump, and hydraulic oil flows into or flows out of the upper cylinder cavity through the transfusion channel.

Furthermore, the hydraulic pump of the scheme is communicated with the bottom of the lower cylinder cavity through the flow valve A, the oil storage cabinet of the hydraulic pump is communicated with the upper cylinder cavity through the flow valve B, and the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston.

Furthermore, the side of the piston head section opposite to the inner wall of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the piston head section is divided into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other through the sealing rings.

Furthermore, the inner side wall of the edge of the output end outlet of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.

Furthermore, the cylinder body of the scheme is of a cylindrical structure, the main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, the auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, the main plug is of a cylindrical structure, the auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure.

Furthermore, the inside wall of the edge of the outlet of the output end of the auxiliary cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the auxiliary cylinder cavity is connected with the auxiliary plug in a sealing and sliding mode through the sealing rings.

The energy-saving hydraulic oil cylinder lifting system provided by the invention adopts the hydraulic oil cylinder with energy storage and energy-saving design to improve the energy utilization rate, and has the characteristic of high energy utilization rate.

Drawings

FIG. 1 is a schematic diagram of an energy efficient hydraulic ram lift system.

FIG. 2 is a schematic diagram of a hydraulic ram jacking system.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of a portion B in fig. 2.

Fig. 5 is a schematic cross-sectional view of the cylinder block.

Fig. 6 is a schematic view of the section a-a in fig. 5.

Fig. 7 is a schematic cross-sectional view of a piston.

The hydraulic cylinder is 100, the universal connector is 101, the sealing ring is 102, the main cylinder cavity is 110, the upper cylinder cavity is 111, the lower cylinder cavity is 112, the auxiliary cylinder cavity is 120, the main plug is 130, the liquid conveying channel is 131, the auxiliary plug is 140, the hydraulic energy storage device is 200, the hydraulic pump is 300, the flow valve A is 310, the flow valve B is 320, the car is 400, and the buffer plate assembly is 401.

Detailed Description

The energy-saving hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity, the hydraulic lift car lifting device comprises a main cylinder cavity, a hydraulic pump, a hydraulic energy storage device, a piston and a hydraulic energy storage device, wherein the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston transmission end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic pump pumps hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to lift the car in a linkage manner with the main plug, the car discharges the hydraulic oil in the main cylinder cavity and the auxiliary cylinder. According to the scheme, the hydraulic oil cylinder with the energy storage and energy saving design is adopted to improve the utilization rate of energy, the lift car presses the hydraulic oil in the auxiliary cylinder cavity back to the hydraulic energy storage device through the auxiliary plug under the action of gravity in the piston descending process, so that part of energy is stored in the hydraulic energy storage device for subsequent utilization, and the use efficiency of the energy is improved.

Based on above scheme, in order to further improve the utilization ratio of the energy, improve the jacking ability of whole equipment, the distribution of even load, cause other accidents jointly after avoiding single hydraulic cylinder jacking system to break down, this scheme still discloses one kind and can move alone, also can the unit of joint operation, as shown in figure 1, the energy-conserving hydraulic cylinder operating system of this scheme includes hydraulic cylinder jacking system A, hydraulic cylinder jacking system B, hydraulic cylinder jacking system A's piston drive end A is connected with hydraulic cylinder jacking system B's piston drive end B through the frame roof beam, the middle part of frame roof beam is connected with the top of car through universal connector, the car is at hydraulic cylinder jacking system A, upward movement under hydraulic cylinder jacking system B's common promotion. Moreover, the scheme is not limited to the two hydraulic oil cylinder jacking systems, and can also be combined equipment with other quantities according with the field design and installation requirements, a single piece of equipment in the combination can be operated independently, and can also be operated with other equipment in a combined manner, if a fault occurs in the operation of the single piece of equipment, the other equipment can be accessed and operated without delay, and under the combined operation of a plurality of pieces of equipment, the fault occurs in the plurality of pieces of equipment at the same time with only a very small probability, so that the fault rate of the whole equipment is greatly reduced, and the safety of the system and the energy utilization efficiency are improved.

In order to avoid the descending of car and the hard contact of exterior structure, the bottom of the car of this scheme is equipped with the buffer board subassembly, and the buffer board subassembly includes top panel, lower panel, is equipped with a plurality of elastomeric element between top panel and the lower panel, and top panel and lower panel pass through elastomeric element and form elastic connection, and the car passes through above-mentioned elastic connection and forms the buffering contact with exterior structure.

In order to realize the jacking function of the cylinder, as shown in fig. 2, the main plug of the scheme comprises a piston head section and a piston rod section, the piston head section divides a main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other, the bottom of the lower cylinder cavity is communicated with a hydraulic pump, the upper cylinder cavity is communicated with an oil storage cabinet of the hydraulic pump, the hydraulic pump pumps hydraulic oil in the oil storage cabinet into the lower cylinder cavity so that the piston head section moves upwards to discharge hydraulic oil in the upper cylinder cavity into the oil storage cabinet, and the lift car descends to discharge the hydraulic oil in the lower cylinder cavity back into the oil storage cabinet and simultaneously pump the hydraulic oil in the oil storage cabinet back into the upper cylinder cavity. Based on the scheme, in order to realize smooth discharge of the hydraulic oil in the upper cylinder cavity and avoid oil circuit blockage caused by the problem of the position of the oil outlet, as shown in fig. 7, a liquid inlet groove is formed in the surface of the piston head section, which is positioned on one side of the upper cylinder cavity, of the piston head section, the liquid inlet groove is communicated with a channel in the piston rod section to form a liquid conveying channel, the liquid conveying channel is communicated with an oil storage cabinet of the hydraulic pump, and the hydraulic oil flows into or out of the upper cylinder cavity through the liquid conveying channel. In order to adjust the movement speed of the car conveniently, the stable speed is kept in the ascending and descending processes, the hydraulic pump of the scheme is communicated with the bottom of the lower cylinder cavity through the flow valve A, the oil storage cabinet of the hydraulic pump is communicated with the upper cylinder cavity through the flow valve B, the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston, namely the flow valve A and the flow valve B are used for controlling the inflow and outflow of the hydraulic oil independently or in combination, so that the speed of jacking the car by the piston is adjusted. In order to guarantee the sealing performance in the process of piston movement, as shown in fig. 4, the piston head section of the scheme and the side opposite to the inner wall of the main cylinder cavity are provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the piston head section is divided into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other by the main cylinder cavity through the sealing rings. Based on the same purpose, as shown in fig. 3, the inner side wall of the edge of the outlet of the output end of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.

In order to realize the functions of the hydraulic cylinder body, as shown in fig. 5 and 6, the cylinder body of the scheme is of a cylindrical structure, a main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, an auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, a main plug is of a cylindrical structure, an auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure. Based on above scheme, in order to realize the sealing contact of piston and cylinder body, as shown in fig. 3, be equipped with a plurality of sealing washer annular that set up along circumference on the border inside wall of the output of this scheme's supplementary jar chamber, be equipped with the sealing washer in the sealing washer annular, assist the jar chamber through the sealing washer with assist the stopper and form sealed sliding connection.

The energy-saving hydraulic oil cylinder lifting system is not limited to the content disclosed in the specific embodiment, the technical scheme presented in the embodiment can be extended based on the understanding of the person skilled in the art, and the simple alternative scheme made by the person skilled in the art according to the scheme and the common knowledge also belongs to the scope of the scheme.