阅读说明：本技术 非开挖钻杆双头车床液压装置 (Hydraulic device of trenchless drill rod double-head lathe ) 是由 王维祥 于 2020-04-24 设计创作，主要内容包括：本发明公开了一种非开挖钻杆双头车床液压装置。该液压装置包括承载液压油的油箱总成,所述油箱总成包括油箱,油箱内设有液压油,油箱连接有油泵,油泵连接第一油路,第一油路分别连接于第一三位四通电磁阀的P油口、第二三位四通电磁阀的P油口,第一三位四通电磁阀的B油口、第二三位四通电磁阀的B油口分别连接于第一液压缸的有杆腔、第二液压缸的有杆腔,第一三位四通电磁阀的A油口、第二三位四通电磁阀的A油口分别连接于第一液压缸的无杆腔、第二液压缸的无杆腔。本发明设置的两个液压缸,通过结构相同的两个三位四通电磁阀进行控制,使得两个液压缸实现同步动作,进而使得液压缸共同举升的钻杆呈现稳定的移动状态。(The invention discloses a hydraulic device of a trenchless drill rod double-head lathe. This hydraulic means is including the oil tank assembly who bears hydraulic oil, the oil tank assembly includes the oil tank, is equipped with hydraulic oil in the oil tank, and the oil tank is connected with the oil pump, the first oil circuit of oil pump connection, first oil circuit is connected respectively in the P hydraulic fluid port of first tribit four-way solenoid valve, the P hydraulic fluid port of second tribit four-way solenoid valve, the B hydraulic fluid port of first tribit four-way solenoid valve, the B hydraulic fluid port of second tribit four-way solenoid valve are connected respectively in the pole chamber that has of first pneumatic cylinder, the pole chamber that has of second pneumatic cylinder, the A hydraulic fluid port of first tribit four-way solenoid valve, the A hydraulic fluid port of second tribit four-way solenoid valve is connected respectively. The two hydraulic cylinders are controlled by the two three-position four-way electromagnetic valves with the same structure, so that the two hydraulic cylinders can synchronously act, and a drill rod lifted by the hydraulic cylinders jointly is in a stable moving state.)

1. The utility model provides a non-excavation drilling rod double-end lathe hydraulic means, includes the oil tank assembly that bears hydraulic oil and the hydraulic pressure valves that link to each other with the oil tank assembly, and hydraulic pressure valves connects in first pneumatic cylinder and second pneumatic cylinder, its characterized in that: the oil tank assembly comprises an oil tank, hydraulic oil is arranged in the oil tank, the oil tank is connected with an oil pump, the oil pump is connected with a first oil path, the first oil path is connected with an electromagnetic overflow valve, the electromagnetic overflow valve is connected with the oil tank, the electromagnetic overflow valve is further connected with a P oil port of a two-position four-way electromagnetic valve, a T oil port of the two-position four-way electromagnetic valve is connected with the oil tank, the first oil path is further respectively connected with the P oil port of the first three-position four-way electromagnetic valve and the P oil port of the second three-position four-way electromagnetic valve, the T oil port of the first three-position four-way electromagnetic valve and the T oil port of the second three-position four-way electromagnetic valve are respectively connected with the oil tank, a B oil port of the first three-position four-way electromagnetic valve and a B oil port of the second three-position, And a first superposed type one-way speed regulating valve and a second superposed type one-way speed regulating valve are arranged between the oil port A of the first three-position four-way electromagnetic valve, the oil port A of the second three-position four-way electromagnetic valve, the first superposed type hydraulic control one-way valve and the second superposed type hydraulic control one-way valve.

2. The hydraulic device for the trenchless drill pipe double-head lathe as claimed in claim 1, wherein: an oil absorption filter element is arranged between the oil pump and the oil tank.

Technical Field

The invention relates to the technical field of production and manufacturing of trenchless drilling tools, in particular to a hydraulic device of a trenchless drill rod double-head lathe.

Background

The existing drill rod processing technology is that a single hydraulic cylinder lifting mechanism lifts a drill rod, one end of the drill rod is placed in a lathe for processing, and after one end of the drill rod is processed, the drill rod is rotated to process the other end of the drill rod. However, this kind of processing mode has the inconvenient problem of processing, consequently can set up the double-end lathe and directly carry out the vehicle machining to the both ends of drilling rod, in order to have stable support to the drilling rod, generally sets up two pneumatic cylinders and carries out the lifting support to the drilling rod.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a hydraulic device which is simple in structure and can realize synchronous lifting of two groups of hydraulic cylinders.

In order to achieve the aim, the invention discloses a hydraulic device of a trenchless drill rod double-head lathe, which adopts the following technical scheme:

The utility model provides a non-excavation drilling rod double-end lathe hydraulic means, is including the oil tank assembly that bears hydraulic oil and the hydraulic pressure valves that link to each other with the oil tank assembly, and hydraulic pressure valves connects in first pneumatic cylinder and second pneumatic cylinder, the oil tank assembly includes the oil tank, is equipped with hydraulic oil in the oil tank, and the oil tank is connected with the oil pump, be provided with the oil absorption filter core between oil pump and the oil tank. The oil pump is connected with a first oil path, the first oil path is connected with an electromagnetic overflow valve, the electromagnetic overflow valve is connected with an oil tank, the electromagnetic overflow valve is further connected with a P oil port of a two-position four-way solenoid valve, a T oil port of the two-position four-way solenoid valve is connected with the oil tank, the first oil path is further respectively connected with the P oil port of the first three-position four-way solenoid valve and the P oil port of the second three-position four-way solenoid valve, the T oil port of the first three-position four-way solenoid valve and the T oil port of the second three-position four-way solenoid valve are respectively connected with the oil tank, a B oil port of the first three-position four-way solenoid valve and a B oil port of the second three-position four-way solenoid valve are respectively connected with a rod cavity of the first hydraulic cylinder and a rod cavity of the second hydraulic cylinder, an A oil port of the first three-position four, And a first superposed type one-way speed regulating valve and a second superposed type one-way speed regulating valve are arranged between the oil port A of the first three-position four-way electromagnetic valve and the oil port A of the second three-position four-way electromagnetic valve and the first superposed type hydraulic control one-way valve and between the second superposed type hydraulic control one-way valve and the first superposed type one-way speed regulating valve.

Compared with the prior art, the invention has the beneficial effects that:

1. The two hydraulic cylinders are controlled by the two three-position four-way electromagnetic valves with the same structure, so that the two hydraulic cylinders can synchronously act, and a drill rod lifted by the hydraulic cylinders jointly is in a stable moving state.

2. According to the invention, the overlapped one-way speed regulating valve is arranged to realize that the hydraulic cylinder can be in a fast jacking state and a slow jacking state when being ejected, so that the control stability of the lifting drill rod is further ensured.

Drawings

FIG. 1 is a hydraulic schematic of the present invention;

In the figure: the oil tank assembly comprises a 10 oil tank assembly, an 11 oil tank, a 12 oil pump, a 13 oil absorption filter element, a 20 first oil way, a 30 electromagnetic overflow valve, a 40 two-position four-way electromagnetic valve, a 51 first three-position four-way electromagnetic valve, a 52 second three-position four-way electromagnetic valve, a 61 first superposed one-way speed regulating valve, a 62 second superposed one-way speed regulating valve, a 71 first superposed hydraulic control one-way valve, a 72 second superposed hydraulic control one-way valve, a 81 first hydraulic cylinder and a 82 second hydraulic cylinder.

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.

As shown in fig. 1, a hydraulic device for a trenchless drill rod double-head lathe comprises an oil tank assembly 10 for bearing hydraulic oil and a hydraulic valve group connected with the oil tank assembly 10, wherein the hydraulic valve group is connected with a first hydraulic cylinder 81 and a second hydraulic cylinder 82, the oil tank assembly 10 comprises an oil tank 11, hydraulic oil is arranged in the oil tank, the oil tank 11 is connected with an oil pump 12, and an oil absorption filter element 13 is arranged between the oil pump and the oil tank. The oil pump 12 is connected with the first oil path 20, the first oil path 20 is connected with the electromagnetic overflow valve 30, the electromagnetic overflow valve 30 is connected with the oil tank 11, the electromagnetic overflow valve 30 is further connected with a P oil port of the two-position four-way solenoid valve 40, a T oil port of the two-position four-way solenoid valve 40 is connected with the oil tank, and the first oil path 20 is further connected with the P oil port of the first three-position four-way solenoid valve 51 and the P oil port of the second three-position four-way. The first three-position four-way solenoid valve 51 and the second three-position four-way solenoid valve 52 are all electromagnetic directional valves. A T oil port of the first three-position four-way solenoid valve 51 and a T oil port of the second three-position four-way solenoid valve 52 are connected to the oil tank 11, a B oil port of the first three-position four-way solenoid valve 51 and a B oil port of the second three-position four-way solenoid valve 52 are connected to a rod cavity of the first hydraulic cylinder 81 and a rod cavity of the second hydraulic cylinder 82, an a oil port of the first three-position four-way solenoid valve 51 and an a oil port of the second three-position four-way solenoid valve 52 are connected to a rodless cavity of the first hydraulic cylinder 81 and a rodless cavity of the second hydraulic cylinder 82, a first superposed hydraulic control check valve 71 and a second superposed hydraulic control check valve 72 are arranged between the first three-position four-way solenoid valve 51 and the second three-position four-way solenoid valve 52 and between the first hydraulic cylinder 81 and the second hydraulic cylinder 82, respectively, and a first superposed hydraulic control check valve 71 and a second, A first superposed one-way speed regulating valve 61 and a second superposed one-way speed regulating valve 62 are arranged between the second superposed hydraulic control one-way valves 72.

The working principle of the invention is as follows: as shown in the figure, the left end of the two-position four-way solenoid valve is named as S1, the left end of the first three-position four-way solenoid valve is named as S2, the right end of the first three-position four-way solenoid valve is named as S3, the left end of the second three-position four-way solenoid valve is named as S4, the right end of the second three-position four-way solenoid valve is named as S5, the left end of the first superposition type one-way speed regulating valve is named as S6, the left end of the second superposition type one-way speed regulating valve is named as S7, during work, the oil pump is started, the S1 is powered on, the S3 and the S5 are powered on simultaneously, the two hydraulic cylinders are simultaneously ejected, the S6 and the S7 are powered on simultaneously, the synchronous ejection speed of the two hydraulic cylinders is reduced, slow ejection is realized, the S3.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.