阅读说明：本技术 一种钻机夹持器液压分流同步机构 (Hydraulic shunt synchronizing mechanism for drilling machine clamp holder ) 是由 张福海 田英材 吴浩 赵晓冬 刘勤学 秦鹏 唐德林 李向东 李永华 周兢 陆卫星 于 2021-08-19 设计创作，主要内容包括：本发明提供了一种钻机夹持器液压分流同步机构,包括换向阀、同步分流马达、夹持器左油缸、夹持器右油缸和液压锁,换向阀的出油口通过液压锁及同步分流马达连接夹持器左油缸、夹持器右油缸的无杆腔,该机构采用同步分流马达对来自分油阀块的液压油进行均匀分流,达到使夹持器油缸伸出速度、伸出长度均保持同步的目的。这样能有效保证夹持中心前后一致,避免钻杆钻具在夹持过程中产生斜向变形,保证了钻孔垂直度和钻孔安全。(The invention provides a hydraulic flow-dividing synchronizing mechanism of a drilling machine holder, which comprises a reversing valve, a synchronous flow-dividing motor, a holder left oil cylinder, a holder right oil cylinder and a hydraulic lock, wherein an oil outlet of the reversing valve is connected with rodless cavities of the holder left oil cylinder and the holder right oil cylinder through the hydraulic lock and the synchronous flow-dividing motor. Therefore, the front and back of the clamping center can be effectively ensured to be consistent, the drill rod drilling tool is prevented from generating oblique deformation in the clamping process, and the drilling verticality and the drilling safety are ensured.)

1. The utility model provides a rig holder hydraulic pressure reposition of redundant personnel lazytongs, includes switching-over valve, synchronous reposition of redundant personnel motor, holder left side hydro-cylinder, holder right side hydro-cylinder and hydraulic pressure lock, its characterized in that:

the reversing valve is provided with an oil outlet and an oil return port; the synchronous flow dividing motor is provided with an oil inlet port and two oil outlet ports;

an oil outlet of the reversing valve is sequentially connected with an oil inlet port of the hydraulic lock and an oil inlet port of the synchronous shunt motor through hydraulic pipelines, and two oil outlet ports of the synchronous shunt motor are respectively connected with a rodless cavity of the left oil cylinder of the clamp holder and a rodless cavity of the right oil cylinder of the clamp holder through the hydraulic pipelines;

the oil outlets of the rod cavity of the left oil cylinder of the clamp and the rod cavity of the right oil cylinder of the clamp are sequentially connected with the oil return ports of the hydraulic lock and the reversing valve through hydraulic pipelines.

2. The drill chuck hydraulic shunt synchronizing mechanism of claim 1 wherein said synchronous shunt motor ensures equal distribution of hydraulic oil out of the outlet port.

3. The drill holder hydraulic pressure split synchronizing mechanism according to claim 1, wherein the telescopic rod of the holder left cylinder and the telescopic rod of the holder right cylinder are oppositely arranged.

Technical Field

The invention relates to a hydraulic shunt synchronizing mechanism of a drilling machine holder, which is particularly suitable for drilling machines with higher requirements on keeping the holding centers of double holders consistent.

Background

At present, most of drilling machine holders adopt a traditional direct-connection type oil supply mode, namely, hydraulic oil is pressurized through an oil pump and directly enters a holder oil cylinder from an oil distribution valve, so that the purpose of driving the holders to perform holding operation is achieved. However, the problem that the extending speed of the opposite direction oil cylinders of the clamp cannot be kept consistent inevitably occurs, in the process of practical use, the extending speed of the oil cylinders of the clamp is different, the central position of the clamp is uncertain, if the upper clamp and the lower clamp are combined, the oblique deformation of a drill rod drilling tool can be caused, in the process that the drill rod string is continuously lengthened, the oblique deformation is gradually accumulated, the drilling verticality and the service life of the drill rod drilling tool can be greatly influenced, and even the drill rod is broken, so that the drilling accident is caused.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides a hydraulic flow-dividing synchronizing mechanism of a drilling machine holder, which can uniformly divide hydraulic oil from an oil-dividing valve block so as to achieve the aim of keeping the extending speed and the extending length of an oil cylinder of the holder synchronous. Therefore, the front and back of the clamping center can be effectively ensured to be consistent, the drill rod drilling tool is prevented from generating oblique deformation in the clamping process, and the drilling verticality and the drilling safety are ensured.

In order to achieve the purpose, the invention adopts the following technical scheme:

a hydraulic shunt synchronization mechanism of a drilling machine holder comprises a reversing valve, a synchronization shunt motor, a holder left oil cylinder, a holder right oil cylinder and a hydraulic lock, wherein the reversing valve is provided with an oil outlet and an oil return port; the synchronous flow dividing motor is provided with an oil inlet port and two oil outlet ports;

an oil outlet of the reversing valve is sequentially connected with an oil inlet port of the hydraulic lock and an oil inlet port of the synchronous shunt motor through hydraulic pipelines, and two oil outlet ports of the synchronous shunt motor are respectively connected with a rodless cavity of the left oil cylinder of the clamp holder and a rodless cavity of the right oil cylinder of the clamp holder through the hydraulic pipelines;

the oil outlets of the rod cavity of the left oil cylinder of the clamp and the rod cavity of the right oil cylinder of the clamp are sequentially connected with the oil return ports of the hydraulic lock and the reversing valve through hydraulic pipelines.

The synchronous flow dividing motor ensures that hydraulic oil flowing out of the oil outlet port is distributed in equal quantity.

The telescopic rod of the left oil cylinder of the clamp holder and the telescopic rod of the right oil cylinder of the clamp holder are arranged in opposite directions.

The invention has the technical effects that: the mechanism can evenly distribute the hydraulic oil from the oil distributing valve block, so that the purpose of keeping the extending speed and the extending length of the oil cylinder of the gripper synchronous is achieved. Therefore, the front and back of the clamping center can be effectively ensured to be consistent, the drill rod drilling tool is prevented from generating oblique deformation in the clamping process, and the drilling verticality and the drilling safety are ensured.

Drawings

The invention will be further explained with reference to the drawings

FIG. 1 is a schematic view of the overall structure of the synchronizing mechanism according to the present invention;

wherein:

1-reversing valve, 2-synchronous shunt motor, 3.1-gripper left oil cylinder, 3.2-gripper right oil cylinder and 4-hydraulic lock.

Detailed Description

Example 1

As shown in fig. 1, a hydraulic shunt synchronization mechanism of a drilling machine holder comprises a reversing valve 1, a synchronization shunt motor 2, a holder left oil cylinder 3.1, a holder right oil cylinder 3.2 and a hydraulic lock 4, wherein the reversing valve 1 is provided with an oil outlet a and an oil return port B; the synchronous split motor is provided with one oil inlet port P and two oil outlet ports A1 and A2;

an oil outlet A of the reversing valve is sequentially connected with a hydraulic lock 4 and an oil inlet port P of the synchronous shunt motor 2 through hydraulic pipelines, and two oil outlet ports A1 and A2 of the synchronous shunt motor 2 are respectively connected with a rodless cavity of the clamp left oil cylinder 3.1 and a rodless cavity of the clamp right oil cylinder 3.2 through hydraulic pipelines;

the oil outlets of the rod cavity of the left oil cylinder of the clamp and the rod cavity of the right oil cylinder of the clamp are sequentially connected with the hydraulic lock 4 and the oil return port B of the reversing valve 1 through hydraulic pipelines.

The synchronous flow dividing motor ensures that the hydraulic oil flowing out of the oil outlet port is distributed equally.

The telescopic rod of the left oil cylinder of the clamp holder and the telescopic rod of the right oil cylinder of the clamp holder are arranged in opposite directions.

When the synchronous mechanism works, hydraulic oil flows to an oil inlet port P of the synchronous shunt motor 2 through an oil outlet A of the reversing valve 1 and the hydraulic lock 4, the synchronous shunt motor 2 ensures that the hydraulic oil is distributed in equal quantity, so that the hydraulic oil flows to a rodless cavity of the clamp left oil cylinder 3.1 through an oil outlet port A1 and flows to a rodless cavity of the clamp right oil cylinder 3.2 through an oil outlet port A2, and the hydraulic lock is connected to a port B of the reversing valve 1 through rod cavities of the clamp left oil cylinder 3.1 and the clamp right oil cylinder 3.2. The synchronous shunting motor 2 ensures that hydraulic oil is distributed in an equivalent manner, ensures that the extension speeds of piston rods of the left oil cylinder 3.1 and the right oil cylinder 3.2 of the clamp are the same, and realizes the synchronous clamping effect.

Those skilled in the art will recognize that a wide variety of modifications, alterations, and combinations can be made with respect to the above described embodiments without departing from the scope of the invention, and that such modifications, alterations, and combinations are to be viewed as being within the ambit of the inventive concept.