阅读说明：本技术 节能开合模液压升降系统 (Energy-saving die opening and closing hydraulic lifting system ) 是由 张德全 王华伟 郭祥立 王祖欣 王金龙 刘大鹏 汪明 张永锋 肖媛 刘政军 于 2021-10-09 设计创作，主要内容包括：本发明涉及节能开合模液压升降系统,所提供的技术方案如下,包括有液压升降机构、油泵、弹性储能机构,三者分别通过管路相连,管路上设置有流量控制机构；液压升降机构包括有液压升降机、升降平台、态势感知机构,升降平台的两端通过吊具吊装重物,液压升降机控制升降平台进行升降；态势感知机构至少包括有测距设备,测距设备至少为两个且分别设置在升降平台的两端,每个测距设备均分为近距测量部分和远距测量部分两部分,其中远距测量部分用以测量升降平台距离地面的高度,近距测量部分用以测量升降平台与重物之间的间距。(The invention relates to an energy-saving die opening and closing hydraulic lifting system, which adopts the following technical scheme that the system comprises a hydraulic lifting mechanism, an oil pump and an elastic energy storage mechanism, wherein the hydraulic lifting mechanism, the oil pump and the elastic energy storage mechanism are respectively connected through pipelines, and flow control mechanisms are arranged on the pipelines; the hydraulic lifting mechanism comprises a hydraulic lifter, a lifting platform and a situation sensing mechanism, wherein both ends of the lifting platform lift heavy objects through a lifting appliance, and the hydraulic lifter controls the lifting platform to lift; the situation perception mechanism at least comprises two distance measuring devices, the distance measuring devices are at least arranged at two ends of the lifting platform respectively, each distance measuring device is divided into a short-distance measuring part and a long-distance measuring part, the long-distance measuring part is used for measuring the height of the lifting platform from the ground, and the short-distance measuring part is used for measuring the distance between the lifting platform and a heavy object.)

1. The energy-saving die opening and closing hydraulic lifting system is characterized by comprising a hydraulic lifting mechanism, an oil pump and an elastic energy storage mechanism which are respectively connected through pipelines, wherein the pipelines are provided with flow control mechanisms;

the hydraulic lifting mechanism comprises a hydraulic lifter, a lifting platform and a situation sensing mechanism, wherein both ends of the lifting platform lift heavy objects through a lifting appliance, and the hydraulic lifter controls the lifting platform to lift;

the situation sensing mechanism at least comprises two distance measuring devices, the two distance measuring devices are respectively arranged at two ends of the lifting platform, each distance measuring device is divided into a short distance measuring part and a long distance measuring part, the long distance measuring part is used for measuring the height of the lifting platform from the ground, and the short distance measuring part is used for measuring the distance between the lifting platform and a heavy object;

when the distance between the lifting platform and the weight reaches a preset minimum value a measured by the short-distance measuring part, the flow control mechanism adjusts the flow between the hydraulic lifting mechanism and the energy storage mechanism to be reduced, otherwise, the flow is increased when the distance reaches a preset maximum value b;

when the height of the lifting platform from the ground reaches a minimum preset value c, the flow control mechanism of the pipeline between the hydraulic lifting mechanism and the oil pump is closed, and meanwhile, the flow control mechanism of the pipeline between the hydraulic lifter and the elastic energy storage mechanism is opened.

2. The energy-saving hydraulic lifting system for the mold opening and closing according to claim 1, wherein the situation sensing mechanism further comprises a sliding mechanism which is arranged below the lifting platform, the distance measuring equipment is arranged on the sliding mechanism, and the distance measuring equipment is laser distance measuring equipment.

3. The energy efficient hydraulic lift system of claim 2 wherein the close-range measurement section has a plurality of laser ranging sensors and is located close to the lift platform hoist.

4. The energy-saving die opening and closing hydraulic lifting system of claim 3, wherein the remote measuring part is far away from the platform sling.

5. The energy-saving die opening and closing hydraulic lifting system of claim 1, wherein the flow control mechanism is an electrically controlled flow valve.

6. The energy-saving die opening and closing hydraulic lifting system according to claim 1, wherein the situation sensing mechanism further comprises a speed sensor, the speed sensor is also mounted on the lifting platform and transmits data to the remote control room through a network, and when the weight of the heavy object is larger, the descending speed of the lifting platform is increased, and the speed sensor senses the higher speed, the remote control room controls the electrically controlled flow valve to reduce the flow of the pipeline between the hydraulic lifter and the elastic energy accumulator.

7. The energy-saving hydraulic lifting system with mold opening and closing functions as claimed in claim 2, wherein the sliding mechanism is an electric sliding rail, and the laser distance measuring sensor of the remote measuring part is mounted on a sliding block of the electric sliding rail.

8. The energy-saving hydraulic lifting system for the mold opening and closing as claimed in claim 2, wherein the sliding mechanism comprises a guide rod, a sliding sleeve and a telescopic mechanism, the guide rod is mounted at the bottom of the lifting platform through a bracket, the sliding sleeve is slidably sleeved on and slides along the guide rod, the telescopic mechanism is fixed at one end of the guide rod, the telescopic rod of the telescopic mechanism drives the sliding sleeve to move, and the laser ranging sensor of the remote measuring part is mounted on the sliding sleeve.

9. The energy-saving hydraulic lifting system for mold opening and closing according to claim 1 or 8, wherein the hydraulic lifting mechanism further comprises a wide expansion platform, and the wide expansion platform fixedly sleeves the lifting platform through a mounting groove.

10. The hydraulic lifting system of claim 9, wherein the situation sensing mechanism further comprises at least two motors fixed below the lifting platform, each of the two ends of the guide rod is connected to the motor through a swing arm, the motor drives the swing arms to rotate, so that the sliding mechanism rotates below the wide expansion platform, and the laser distance measuring sensors of the remote measuring part are mounted on the upper side and the lower side of the sliding sleeve.

Technical Field

The invention relates to a lifting system, in particular to a hydraulic lifting system.

Background

In a hydraulic mechanism of a vulcanizing machine, the action and the function with the highest energy consumption are mainly the action of opening and closing a mold. The action has the characteristics of high speed and high pressure, and the whole energy consumption of the hydraulic station is highest during the action. When the vulcanizing machine is opened and closed, the load is heavy, and the load is about 5t to 12t according to different machine types. In order to perform such a large load operation, a large amount of energy is consumed, and the energy consumption cost in the vulcanization operation increases.

Therefore, the problem of high energy consumption of the mold opening and closing needs to be solved, and the degree of automatic control should be increased as much as possible on the premise of controllable cost while the opportunity is improved, so that the energy consumption is reduced, and the working efficiency can be improved.

Disclosure of Invention

In order to solve the technical problem, an energy-saving die opening and closing hydraulic lifting system is provided, and the technical scheme is as follows, the energy-saving die opening and closing hydraulic lifting system comprises a hydraulic lifting mechanism, an oil pump and an elastic energy storage mechanism which are respectively connected through pipelines, and flow control mechanisms are arranged on the pipelines;

the hydraulic lifting mechanism comprises a hydraulic lifter, a lifting platform and a situation sensing mechanism, wherein both ends of the lifting platform lift heavy objects through a lifting appliance, and the hydraulic lifter controls the lifting platform to lift;

the situation sensing mechanism at least comprises two distance measuring devices, the two distance measuring devices are respectively arranged at two ends of the lifting platform, each distance measuring device is divided into a short distance measuring part and a long distance measuring part, the long distance measuring part is used for measuring the height of the lifting platform from the ground, and the short distance measuring part is used for measuring the distance between the lifting platform and a heavy object;

when the distance between the lifting platform and the weight reaches a preset minimum value a measured by the short-distance measuring part, the flow control mechanism adjusts the flow between the hydraulic lifting mechanism and the energy storage mechanism to be reduced, otherwise, the flow is increased when the distance reaches a preset maximum value b;

when the height of the lifting platform from the ground reaches a minimum preset value c, the flow control mechanism of the pipeline between the hydraulic lifting mechanism and the oil pump is closed, and meanwhile, the flow control mechanism of the pipeline between the hydraulic lifter and the elastic energy storage mechanism is opened.

On the basis of the technical scheme, the situation sensing mechanism further comprises a sliding mechanism which is arranged below the lifting platform, the ranging device is installed on the sliding mechanism, and the ranging device is a laser ranging device.

On the basis of the technical scheme, the short-distance measuring part is provided with a plurality of laser ranging sensors and is close to the lifting platform lifting appliance.

On the basis of the technical scheme, the remote measurement part is far away from the platform sling.

On the basis of the technical scheme, the flow control mechanism is an electric control flow valve.

On the basis of the technical scheme, the situation sensing mechanism further comprises a speed sensor, the speed sensor is also installed on the lifting platform and transmits data to the remote control room through a network, when the weight of the heavy object is large, the descending speed of the lifting platform is increased, and the speed sensor senses the high speed, the remote control room controls the electric control flow valve to reduce the flow of a pipeline between the hydraulic lifter and the elastic energy storage device.

On the basis of the technical scheme, the sliding mechanism is an electric sliding rail, and a laser ranging sensor of the remote measurement part is arranged on a sliding block of the electric sliding rail.

On the basis of the technical scheme, the sliding mechanism comprises a guide rod, a sliding sleeve and a telescopic mechanism, the guide rod is installed at the bottom of the lifting platform through a support, the sliding sleeve is sleeved on the guide rod in a sliding mode and slides along the guide rod, the telescopic mechanism is fixed to one end of the guide rod, a telescopic rod of the telescopic mechanism drives the sliding sleeve to move, and a laser ranging sensor of the remote measurement part is installed on the sliding sleeve.

On the basis of the technical scheme, the hydraulic lifting mechanism further comprises a wide expansion platform, and the wide expansion platform is fixedly sleeved with the lifting platform through an installation groove.

On the basis of the technical scheme, the situation sensing mechanism further comprises at least two motors, the motors are fixed below the lifting platform, the two ends of the guide rod are respectively connected with the motors through a swing arm, the motors drive the swing arms to rotate, the sliding mechanism is made to rotate to the position below the wide-width expansion platform, and the laser ranging sensors of the long-distance measuring part are installed on the upper side and the two sides of the sliding sleeve.

Has the advantages that: the dead weight of the weight can generate downward moving pressure on a piston rod of the hydraulic cylinder lifting mechanism, and hydraulic oil is extruded into the elastic energy accumulator by utilizing the downward moving force of the piston rod under the action of the dead weight force, so that the effect of converting potential energy into hydraulic energy is realized; when the heavy object needs to be driven to rise, the flow control mechanism of the elastic energy storage device is opened to send hydraulic oil in the flow control mechanism to the hydraulic cylinder, the corresponding oil pump is also opened to work in cooperation with the energy storage device, the piston rod is driven to rise together, and at the moment, the oil pump can drive the heavy object which needs to be driven only by high-power operation only by low-power operation, so that the energy-saving effect is achieved. Meanwhile, the situation sensing mechanism can be used for relatively accurately knowing the motion stroke condition of the piston rod by judging the descending amplitude of the lifting platform under the unattended condition, so that the flow control mechanism is controlled to be opened and closed at a proper time.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention.

Fig. 2 is a schematic view of the working state of the hydraulic lifting mechanism of the present invention.

Fig. 3 is a schematic bottom view of the elevating platform of the present invention.

Fig. 4 is a schematic view of the installation state of the wide expansion platform and the lifting platform of the present invention.

Fig. 5 is a schematic perspective view of the swing arm and the motor of the present invention.

Fig. 6 is a schematic perspective view of the structure of the swing arm and the motor in the working state.

Detailed Description

The first embodiment.

The embodiment modifies the hydraulic elevator 4 and the lifting platform 5 in use as components of an energy-saving lifting system.

In this embodiment, the hydraulic lift 4 and the lifting platform 5 provide lifting power for a product to be processed, the product to be processed usually weighs about ten tons, the lifting platform 5 lifts a weight 16 (a product to be processed) by a lifting appliance, a product base to be combined with the weight 16 is conveyed to a position right below the weight 16 by a conveying mechanism in advance, and then the lifting platform 5 is started to slowly place the weight 16 on the product base from top to bottom for processing, that is, the use situation in this embodiment is different from a manner that the common hydraulic lifting mechanism 1 lifts the "weight 16".

As shown in fig. 1, a hydraulic lift 4 of the hydraulic lift mechanism 1 is connected to an elastic energy storage mechanism 3 (hereinafter referred to as energy storage mechanism 3) and an oil pump 2 through a pipeline, and the pipeline is provided with a flow control mechanism for controlling flow.

In the descending stroke of the piston rod, the whole stroke is not used for storing energy to the energy storage mechanism 3, but a section of the stroke is selected for storing energy, called as an energy storage stroke, so that the top end of the piston rod is the bottom of the lifting platform 5, and when the height of the lifting platform 5 from the ground is a preset value c, the end point of the energy storage stroke is reached, and the flow control mechanism between the energy storage mechanism 3 and the hydraulic lifter 4 needs to be closed. Since the weight 16 is suspended below the lifting platform 5 by the sling, when the weight 16 contacts with the component to be combined, the weight 16 stops descending, and the lifting platform 5 still moves downwards after the weight 16 stops moving, and when the weight 16 stops descending, the height value of the preset value c is reached. The preset minimum value a between the lifting platform 5 and the weight 16 is set as an alert distance, when the distance between the lifting platform 5 and the weight is larger than the preset minimum value a, the pipelines of the hydraulic lifting mechanism 1 and the energy storage mechanism 3 are opened, the flow is adjusted to be maximum, at the moment, the pipeline between the hydraulic lifting mechanism 1 and the oil pump 2 is closed, the lifting platform 5 extrudes hydraulic oil to the energy storage mechanism 3 under the action of gravity, and the action is called mold opening. When the distance between the two is smaller than or equal to the preset minimum value a, the weight 16 stops descending and the pressure applied to the hydraulic lifter 4 disappears instantly, the minimum preset value c is reached, the flow control mechanism between the hydraulic lifter 4 and the energy storage mechanism 3 is closed, at the moment, the lifting appliance is separated from the weight 16, the piston rod still descends under the action of the gravity of the lifting platform 5, but the lifting platform 5 stops descending because the pipeline between the hydraulic lifter 4 and the oil pump 2 is in a closed state and hydraulic oil cannot flow.

When the product under the lifting platform 5 is processed, the lifting is carried out again, and at the moment, the pipelines of the energy storage mechanism 3 and the oil pump 2 are opened simultaneously, so that the hydraulic oil is supplied to the hydraulic lifter 4 by the energy storage mechanism and the oil pump simultaneously, the lifting platform 5 is driven to lift, and the action becomes die assembly. The oil pump 2 only needs to provide a lower force component to lift the heavy object 16 with a large lifting capacity when the mold is closed.

In the embodiment, the hydraulic lifting mechanism 1 is a part of a large-scale processing device and is positioned at the bottom of the large-scale processing device, and the lifting platform 5 can simultaneously process two groups of weights 16 at a time, so that the lifting platform 5 can be designed into a shape similar to a shoulder pole. To enable the remote measuring section 18 to function better, the remote measuring section 18 is remote from the platform sling. Avoid sheltering from by irregularly shaped heavy object 16, lead to long-distance measuring part 18 to be blockked, the solution can set up slide mechanism 8 in lift platform 5 bottom, and range finding equipment 6 is driven by slide mechanism 8 and slides along lift platform 5 length direction, can make the range finding equipment 6 of long-distance measuring part 18 towards the direction slip of keeping away from heavy object 16 when needing, and range finding equipment 6 can preferably be laser range finding sensor 7 simultaneously.

The sliding mechanism 8 can adopt any feasible scheme, wherein, an electric sliding rail is preferably adopted.

The preset minimum value a is measured by the short-distance measuring part 17, which is close to the edges of the two ends of the lifting platform 5, but because the shape of the heavy object 16 hung under the lifting platform 5 may not be flat, the short-distance measuring part may have a better measuring effect, a plurality of laser sensors may be arranged at the bottom of the lifting platform 5, which is close to the hanging point of the heavy object 16, and the measuring data of the plurality of laser sensors is based on the minimum value.

Preferably, the flow control mechanism is an electrically controlled flow valve. The electric control flow valve can be controlled by a remote control room, data measured by the laser ranging sensor 7 is transmitted to the remote control room through a network, and the remote control room opens and closes the electric control flow valve according to the data of the laser ranging sensor 7.

In this embodiment, a speed sensor may also be added as part of the situational awareness mechanism, enabling the situational awareness mechanism to provide more data to the remote control room. When the descending speed of the lifting platform 5 is too high, the descending speed can be measured by the speed sensor and data can be sent to the remote control room, the flow of a pipeline between the hydraulic lifter 4 and the energy storage mechanism 3 can be controlled by the remote control room, the piston rod can be decelerated by reducing the flow, and the collision between a heavy object 16 hoisted by the lifting platform 5 and objects such as a base below the heavy object can be avoided.

In the present embodiment, there is a modification that a wide expansion platform 12 is provided, and the width of the wide expansion platform 12 is larger than that of the lifting platform 5, but the lengths of the two may be the same. Wide extension platform 12 can be in order to the diversified demand of product design that the industry upgrading brought, and it entangles lift platform 5 through mounting groove 13 to it is fixed, can increase lift platform 5's area, will originally carry the hoist hanging point dispersion on lift platform 5 to the wide extension platform 12 bottom of its both sides, the bigger heavy object 16 of hoist that can be more stable. The wide expansion platform 12 requires the piston rod to be lowered to the lowest point during installation.

Example two

The present embodiment provides a new sliding mechanism 8 to replace the electric slide rail.

The purpose of replacing the electric slide rail is that after the wide-width expansion platform 12 is additionally arranged on the lifting platform 5, the single horizontal slide may not meet the requirement of obstacle avoidance.

Therefore, a new sliding scheme consisting of the guide rod 9, the sliding sleeve 10 and the telescopic mechanism 11 is provided, the guide rod 9 is arranged at the bottom of the lifting platform 5 through a support and keeps a proper interval with the lifting platform 5, and the sliding sleeve 10 is driven by the telescopic mechanism 11 to slide on the guide rod 9. The guide rod 9 with a long size can be arranged in advance, and then only the telescopic mechanism 11 with a long enough stroke needs to be installed, or a plurality of telescopic mechanisms 11 are connected to form a multi-stage telescopic mechanism 11, so that the sliding stroke of the sliding sleeve 10 can be adjusted as required without replacing the guide rod 9. The track of the electric slide rail can not be increased, and only the electric slide rail with a longer track can be replaced. The telescopic mechanism 11 may preferably adopt a miniaturized telescopic scheme such as an electric push rod or a linear motor.

This embodiment also has the advantage that the support on the guide bar 9 is removed, that the guide bar 9 is connected to the motor 14 via the swing arm 15 and is not in direct contact with the lifting platform 5. The motor 14 and the swing arm 15 are used, the swing arm 15 is driven to rotate when the motor 14 is started, the swing arm 15 drives the guide rod 9 to swing to the bottom of the adjacent wide expansion platform 12 from the bottom of the lifting platform 5, and obstacle avoidance capacity is greatly improved. Correspondingly all install laser rangefinder sensor 7 in sliding sleeve 10 upper and lower both sides, the interval between guide bar 9 and lift platform 5 can be used for holding laser rangefinder sensor 7 for sliding sleeve 10 also can provide laser rangefinder to the back even upset.