CN215719872U

CN215719872U - Novel hydraulic system is used in construction of hydraulic pressure creeping formwork

Info

Publication number: CN215719872U
Application number: CN202122128282.1U
Authority: CN
Inventors: 郑辉; 徐洪广; 郑守; 吴龙善; 黄霞
Original assignee: CSCEC Strait Construction and Development Co Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-01
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to the technical field of hydraulic creeping formwork, and discloses a novel hydraulic system for hydraulic creeping formwork construction, which comprises an oil tank and a hydraulic cylinder, a plunger pump is arranged in the oil tank, a motor is connected to the plunger pump, a first liquid inlet of an electro-hydraulic servo valve is connected to a liquid outlet end of the plunger pump through a pipeline, a liquid inlet end of a first hydraulic lock is connected to a first liquid outlet of the electro-hydraulic servo valve through a pipeline, a liquid inlet end of a hydraulic cylinder is connected to a liquid outlet end of the first hydraulic lock through a pipeline, a liquid inlet end of a second hydraulic lock is connected to a liquid outlet end of the hydraulic cylinder through a pipeline, a liquid outlet end of the second hydraulic lock is connected with a second liquid inlet of the electro-hydraulic servo valve through a pipeline, a second liquid outlet of the electro-hydraulic servo valve is connected with the oil tank through a pipeline, and a first oil return filter is arranged between the second liquid outlet of the electro-hydraulic servo valve and the oil tank; the utility model has the characteristics of ensuring the same pressure borne by hydraulic cylinders at different machine positions and realizing the synchronous lifting of different creeping formwork machines.

Description

Novel hydraulic system is used in construction of hydraulic pressure creeping formwork

Technical Field

The utility model relates to the technical field of hydraulic creeping formwork, in particular to a novel hydraulic system for hydraulic creeping formwork construction.

Background

The main components of the hydraulic climbing formwork system comprise a formwork, a frame body and a lifting power system, and the hydraulic climbing formwork system is particularly suitable for high-rise structures such as a shear wall system, a barrel system and a pier.

At present, the hydraulic pressure system of climbing commonly used adopts the electromagnetic directional valve more, thereby utilize the removal of electromagnetic force to decide the case to adjust the flow direction of fluid, however, the electromagnetic directional valve has certain limitation in actual operation, it just can begin to operate under the flow and the pressure that need reach a certain value, and the valve port opening of electromagnetic directional valve is very little, consequently under the certain circumstances of flow, the loss of pressure that opening department appears can be bigger, this condition that pressure output is unstable appears easily, lead to different climbing formwork machines in the work progress not synchronous, the condition that the pressure that different quick-witted position pneumatic cylinders received is not uniform takes place, make the work progress have certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a novel hydraulic system for hydraulic creeping formwork construction.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a novel hydraulic system is used in hydraulic creeping formwork construction, including oil tank and pneumatic cylinder, be equipped with the plunger pump in the oil tank, the motor has been connect on the plunger pump, it has the first inlet of locating the outside electrohydraulic servo valve of oil tank to connect through the pipe connection on the liquid output of plunger pump, it has the feed liquor end of first hydraulic pressure lock to connect through the pipe connection on the first liquid outlet of electrohydraulic servo valve, it has the feed liquor end of pneumatic cylinder to connect through the pipe connection on the liquid output of first hydraulic pressure lock, it has the feed liquor end of second hydraulic pressure lock to connect through the pipe connection on the liquid output of pneumatic cylinder, the liquid output of second hydraulic pressure lock passes through the pipe connection and links together with the second inlet of electrohydraulic servo valve, the second liquid outlet of electrohydraulic servo valve passes through the pipe connection and links together with the oil tank, be equipped with first oil return filter on the pipeline that the second liquid outlet of electrohydraulic servo valve and oil tank are connected.

Preferably, an air filter is connected to an air inlet of the oil tank.

Preferably, a liquid level meter is further arranged in the oil tank.

Preferably, a pressure gauge is further arranged on a pipeline connecting the liquid outlet end of the plunger pump and the first liquid inlet of the electro-hydraulic servo valve.

Preferably, the first oil return filter is further connected with a check valve in parallel, a liquid inlet end of the check valve is connected with a signal transmitter, and a liquid outlet end of the check valve is connected with a second oil return filter.

Compared with the prior art, the utility model has the advantages that:

1. the electro-hydraulic servo valve is arranged to replace the electromagnetic reversing valve, and compared with the electromagnetic reversing valve in the prior art, the electro-hydraulic servo valve has the characteristics of fast dynamic response, high control precision and small pressure loss, so that the pressure output is more stable, and compared with the prior art, the electro-hydraulic servo valve has the advantages of ensuring that the pressures borne by different machine-position hydraulic cylinders are the same and realizing the lifting synchronization of different creeping formwork machines.

2. According to the utility model, the check valve is connected in parallel on the first oil return filter, the liquid inlet end of the check valve is connected with the signal transmitter, the liquid outlet end of the check valve is connected with the second oil return filter, when the first oil return filter is blocked, the oil liquid flowing out of the second liquid outlet of the electro-hydraulic servo valve flows through the flow path provided with the signal transmitter, the check valve and the second oil return filter and enters the oil tank, so that the dangerous condition of the hydraulic system caused by the blockage of the first oil return filter can be prevented, in addition, the signal transmitter can send out an alarm signal after the oil liquid passes through and send out a fault generation prompt to an external user, the second oil return filter can be arranged to filter the passing oil liquid, so that the oil liquid entering the oil tank is the filtered oil liquid, and compared with the prior art, the safety is good The oil quality in the oil tank is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

Reference numerals: 1. an oil tank; 2. a hydraulic cylinder; 3. a plunger pump; 4. an electric motor; 5. an electro-hydraulic servo valve; 6. a first hydraulic lock; 7. a second hydraulic lock; 8. a first oil return filter; 9. an air cleaner; 10. a liquid level meter; 11. a pressure gauge; 12. a one-way valve; 13. a signal transmitter; 14. and a second oil return filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1, the embodiment provides a novel hydraulic system for hydraulic creeping formwork construction, which includes an oil tank 1 and a hydraulic cylinder 2, a plunger pump 3 is disposed in the oil tank 1, a motor 4 is connected to the plunger pump 3, the motor 4 is used for driving the plunger pump 3 to work, a first liquid inlet of an electro-hydraulic servo valve 5 disposed outside the oil tank 1 is connected to a liquid outlet of the plunger pump 3 through a pipeline, a liquid inlet of a first hydraulic lock 6 is connected to a first liquid outlet of the electro-hydraulic servo valve 5 through a pipeline, a liquid inlet of the hydraulic cylinder 2 is connected to a liquid outlet of the first hydraulic lock 6 through a pipeline, a liquid inlet of a second hydraulic lock 7 is connected to a liquid outlet of the hydraulic cylinder 2 through a pipeline, a second liquid outlet of the second hydraulic lock 7 is connected to a second liquid inlet of the electro-hydraulic servo valve 5 through a pipeline, and a second liquid outlet of the electro-hydraulic servo valve 5 is connected to the oil tank 1 through a pipeline, a first oil return filter 8 is arranged on a pipeline connecting a second liquid outlet of the electro-hydraulic servo valve 5 with the oil tank 1;

through the aforesaid setting, when needs creeping formwork construction, drive plunger pump 3 through control motor 4 work of beginning and carry out work, can pour into the fluid in the oil tank 1 to the feed liquor end of pneumatic cylinder 2 in plunger pump 3 work of beginning in to supply pneumatic cylinder 2 to carry out work, the fluid in the oil tank 1 gets into the flow path of the 2 feed liquor ends of pneumatic cylinder and does: the electro-hydraulic servo valve 5 is provided with fast dynamic response, high control precision and small pressure loss, so that the oil pressure supplied to the hydraulic cylinder 2 can be ensured to be more stable, the pressure on the hydraulic cylinder 2 at different machine positions is ensured to be the same, and the lifting synchronization of different creeping machines is realized; fluid gets into 2 feed pressure backs of pneumatic cylinder 2 from the play liquid end of pneumatic cylinder 2 and flows back to in the oil tank 1 and carry out reuse, and the fluid of the interior fluid reflux of pneumatic cylinder 2 to the flow path of oil tank 1 does: the liquid inlet end of the hydraulic cylinder 2 is connected with the liquid outlet end of the hydraulic cylinder 2 to the liquid outlet end of the second hydraulic lock 7 to the liquid outlet end of the electro-hydraulic servo valve 5 to the second liquid outlet of the electro-hydraulic servo valve 5 to the first return filter to the oil tank 1, the first return filter is arranged to filter the flowing oil, so as to filter out impurities in the oil, thereby ensuring the quality of the oil finally entering the oil tank 1, and preventing the conditions of abrasion and the like of the hydraulic system caused by poor oil quality.

It should be noted that, the hydraulic cylinder 2, the plunger pump 3, the electro-hydraulic servo valve 5, the first hydraulic lock 6 and the second hydraulic lock 7 are common devices in the prior art, and the number and connection manner of the liquid inlet end, the liquid outlet end and the liquid outlet are known to those skilled in the art, so that other specific connection structures such as a specific structure for connecting the liquid outlet end of the plunger pump 3 and the first liquid inlet of the electro-hydraulic servo valve 5 are not described herein.

In order to further improve the reliability of the hydraulic system, an air filter 9 is connected to an air inlet of the oil tank 1, the air filter 9 is arranged to filter air entering the oil tank 1 and filter particulate impurities in the air, and therefore the situation that the hydraulic system is abraded and the like after the particulate impurities enter the oil tank 1 and flow along with oil is prevented.

For the use of this hydraulic system of convenience of customers, be equipped with level gauge 10 in the oil tank 1, still be equipped with manometer 11 on the pipeline that the liquid outlet end of plunger pump 3 is connected with the first inlet of electro-hydraulic servo valve 5, the setting of level gauge 10 is used for detecting the fluid level in the oil tank 1, user's accessible level gauge 10 acquires the fluid level in the oil tank 1 and judges whether need add fluid in the oil tank 1 with this, manometer 11's setting is used for detecting the pressure in the pipeline that the liquid outlet end of plunger pump 3 is connected with the first inlet of electro-hydraulic servo valve 5, user's accessible manometer 11 learns the pressure in the pipeline that the liquid outlet end of plunger pump 3 is connected with the first inlet of electro-hydraulic servo valve 5, when the pressure value appears unusually, convenience of customers in time maintains.

In order to further improve the reliability of the hydraulic system, the first oil return filter 8 is also connected with a check valve 12 in parallel, a signal transmitter 13 is connected to the liquid inlet end of the check valve 12, and a second oil return filter 14 is connected to the liquid outlet end of the check valve 12, so as to ensure the working effect of the check valve 12, the opening and closing pressure of the valve port of the check valve 12 is set to be lower than the pressure when the first oil return filter 8 is blocked and higher than the pressure when the first oil return filter 8 is unblocked, so that the check valve 12 is ensured to be in a closed state when the first oil return filter 8 is unblocked, and the check valve 12 is in an open state when the first oil return filter 8 is blocked; through the arrangement, when the first oil return filter 8 is blocked, at the moment, the check valve 12 is changed into an open state, the oil liquid flowing out of the second liquid outlet of the electro-hydraulic servo valve 5 flows through the flow path provided with the signal emitter 13, the check valve 12 and the second oil return filter 14 and enters the oil tank 1, so that the dangerous condition of the hydraulic system caused by the blockage of the first oil return filter 8 can be prevented, in addition, the arranged signal emitter 13 can send out an alarm signal after the oil liquid passes through, and a fault generation prompt is sent to an external user, so that the user can conveniently and timely overhaul and remove obstacles, the arranged second oil return filter 14 can filter the passing oil liquid, and the oil liquid entering the oil tank 1 is ensured to be filtered oil liquid; since the signal emitter 13 and the check valve 12 are both conventional in the art, and the operation principle thereof is clearly known to those skilled in the art, the operation principle of the signal emitter 13 and the check valve 12 will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a hydraulic pressure creeping formwork construction is with novel hydraulic system, includes oil tank (1) and pneumatic cylinder (2), its characterized in that: be equipped with plunger pump (3) in oil tank (1), it has motor (4) to connect on plunger pump (3), it has the first inlet of locating oil tank (1) outside electrohydraulic servo valve (5) to connect through pipe connection on the liquid outlet end of plunger pump (3), it has the feed liquor end of first hydraulic pressure lock (6) to connect through pipe connection on the first liquid outlet of electrohydraulic servo valve (5), it has the feed liquor end of pneumatic cylinder (2) to connect through pipe connection on the liquid outlet end of first hydraulic pressure lock (6), it has the feed liquor end of second hydraulic pressure lock (7) to connect through pipe connection on the liquid outlet end of pneumatic cylinder (2), the liquid outlet end of second hydraulic pressure lock (7) passes through pipe connection and links together with the second inlet of electrohydraulic servo valve (5), the second liquid outlet of electrohydraulic servo valve (5) passes through pipe connection and links together with oil tank (1), be equipped with first oil return filter (8) on the pipeline that the second liquid outlet of electrohydraulic servo valve (5) is connected with oil tank (1).

2. The novel hydraulic system for hydraulic creeping formwork construction according to claim 1 is characterized in that: an air filter (9) is connected to an air inlet of the oil tank (1).

3. The novel hydraulic system for hydraulic creeping formwork construction according to claim 1 is characterized in that: and a liquid level meter (10) is also arranged in the oil tank (1).

4. The novel hydraulic system for hydraulic creeping formwork construction according to claim 1 is characterized in that: and a pressure gauge (11) is also arranged on a pipeline connecting the liquid outlet end of the plunger pump (3) with the first liquid inlet of the electro-hydraulic servo valve (5).

5. The novel hydraulic system for hydraulic creeping formwork construction according to claim 1 is characterized in that: the first oil return filter (8) is also connected with a one-way valve (12) in parallel, the liquid inlet end of the one-way valve (12) is connected with a signal transmitter (13), and the liquid outlet end of the one-way valve (12) is connected with a second oil return filter (14).