阅读说明：本技术 一种高可靠性多角度纠偏液压缸 (High-reliability multi-angle deviation rectifying hydraulic cylinder ) 是由 梁晨 王安 黄晓 张磊 翟新颖 于 2020-12-02 设计创作，主要内容包括：本发明公布一种高可靠性多角度纠偏液压缸。包括球绞座和球绞座压块；所述球绞座中心开设有通孔,活塞杆球头安装在绞座通孔中；球绞座通孔右侧是喇叭状孔,球绞座通孔左侧是用于与活塞杆球头配合的SR孔；所述球绞座压块滑动配合安装在球绞座通孔左端,球绞座压块右端是与活塞杆球头配合的球形面；所述球绞座压块轴心开设有润滑通道,润滑通道连通至球绞座压块右端的球形面。本发明通过球绞座与球绞座压块,可调整从不同方向对主机系统纠偏；缸底和球绞座上安装位移检测仪,可有效检测活塞杆伸出长度、换算纠偏角度；纠偏结构装配方便,球绞座压块连接自润滑系统,无需手动润滑,同时防止运动时油杯与主机内部结构干涉。(The invention discloses a high-reliability multi-angle deviation rectifying hydraulic cylinder. Comprises a ball hinge seat and a ball hinge seat pressing block; a through hole is formed in the center of the spherical hinge seat, and the ball head of the piston rod is arranged in the through hole of the hinge seat; the right side of the through hole of the ball hinge seat is a horn-shaped hole, and the left side of the through hole of the ball hinge seat is an SR hole matched with the ball head of the piston rod; the ball hinge seat pressing block is arranged at the left end of the through hole of the ball hinge seat in a sliding fit manner, and the right end of the ball hinge seat pressing block is a spherical surface matched with the ball head of the piston rod; and the axis of the ball hinge seat pressing block is provided with a lubricating channel which is communicated to the spherical surface at the right end of the ball hinge seat pressing block. According to the invention, the deviation of the host system can be corrected from different directions by adjusting the ball screw seat and the ball screw seat pressing block; displacement detectors are arranged on the cylinder bottom and the ball hinge base, and can effectively detect the extension length of the piston rod and convert the deviation correction angle; the structure of rectifying simple to operate, the self-lubricating system is connected to the ball hinge seat briquetting, need not manual lubrication, and oil cup and host computer inner structure interfere when preventing the motion simultaneously.)

1. A high-reliability multi-angle deviation rectifying hydraulic cylinder,

the method is characterized in that:

comprises a ball-stranding seat (2) and a ball-stranding seat pressing block (1);

a through hole is formed in the center of the ball twisting seat (2), and the ball head of the piston rod (3) is arranged in the through hole of the twisting seat (2); the right side of the through hole of the ball hinge seat (2) is a horn-shaped hole, and the left side of the through hole of the ball hinge seat (2) is an SR hole matched with the ball head of the piston rod (3);

the ball hinge seat pressing block (1) is arranged at the left end of the through hole of the ball hinge seat (2) in a sliding fit manner, and the right end of the ball hinge seat pressing block (1) is a spherical surface matched with the ball head of the piston rod (3); the axis of the ball hinge seat pressing block (1) is provided with a lubricating channel (1-1), and the lubricating channel (1-1) is communicated with the spherical surface at the right end of the ball hinge seat pressing block (1).

2. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 1, wherein: the end surface of a secondary stage of the ball twisting seat pressing block (1) is flush with the left end of the ball twisting seat (2), and a lubricating channel (1-1) of the ball twisting seat pressing block (1) is connected with a host self-lubricating system.

3. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 1, wherein: threaded holes (7) are symmetrically formed in two sides of the ball-stranding seat (2), and external sensors are mounted on the threaded holes (7).

4. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 1, wherein: threaded holes (7) are symmetrically formed in two sides of the bottom of the cylinder barrel (5), and external sensors are mounted on the threaded holes (7).

5. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 4, wherein: the cylinder barrel (5) is an integral forging, and the root of an inner hole of the cylinder barrel (5) is provided with a section of annular groove (8) with the diameter larger than the diameter of the cylinder barrel (5).

6. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 1, wherein: the guide sleeve (4) is arranged at the front end of the cylinder barrel (5), and the piston rod (3) penetrates through the guide sleeve (4); the guide sleeve (4) is provided with a support ring matched with copper welding, and the root of the main seal on the guide sleeve (4) is provided with an anti-extrusion step; the left end of the guide sleeve (4) is provided with an anti-collision slope (4-1).

7. The high-reliability multi-angle deviation rectifying hydraulic cylinder as claimed in claim 6, wherein: the piston (6) is arranged at the inner end of the piston rod (3), and a copper welding matched supporting ring is adopted on the piston (6).

Technical Field

The invention relates to the technical field of hydraulic cylinders, in particular to a high-reliability multi-angle deviation rectifying hydraulic cylinder.

Background

In recent years, with the acceleration of urbanization construction, the market demand of horizontal drilling machines is increasing, and the deviation-correcting hydraulic cylinder is used as a drilling auxiliary cylinder, so that the construction reliability and the drilling precision are directly influenced. But the current pneumatic cylinder structure can't satisfy customer's requirement, has the structure of rectifying complicacy, leads to the host computer space not enough. The deviation correction angle can not be detected and controlled, and the deviation correction precision is influenced. When the working condition of hard rock is met, the reliability of the product is not high, and oil leakage accidents occur. Therefore, a new structure is needed to reduce the probability of the occurrence of the existing problems.

For example, in a connection device (CN 206738710U) for a deviation-correcting oil cylinder of a push bench disclosed in the chinese patent, a head of a piston rod of the deviation-correcting oil cylinder adopts a spherical structure, an upper base and a lower base are connected by a bolt to clamp the spherical structure in a spherical groove, and a gap between the spherical groove and the spherical structure can be filled with a lubricant for lubrication. The lower base is connected with the front barrel of the push bench, so that the lower base can rotate with three different degrees of freedom, and the problem of interference is avoided.

Above-mentioned prior art even can realize multi-angle regulation, nevertheless account for base and lower base and need the screw connection, increase the assemble duration, the space that the structure occupy is great, influences other structural component designs of host computer. Meanwhile, the lower base of the oil cylinder needs to be independently fixed with a main machine, a lubricating oil groove of a lubricating groove is not needed, the lower base of the oil cylinder needs to be manually added after being used for a period of time, and the installation and maintenance performance is not high. Moreover, the structure can not meet the requirements of accurate positioning and deviation correction.

Disclosure of Invention

In order to solve the technical problems, the invention provides the high-reliability multi-angle deviation rectifying hydraulic cylinder which achieves the purposes of multi-angle deviation rectification, high reliability and easiness in installation by reasonably designing the sealing and hydraulic cylinder structure.

The invention is realized by the following technical scheme: a high-reliability multi-angle deviation rectifying hydraulic cylinder comprises a ball hinge seat and a ball hinge seat pressing block; a through hole is formed in the center of the spherical hinge seat, and the ball head of the piston rod is arranged in the through hole of the hinge seat; the right side of the through hole of the ball hinge seat is a horn-shaped hole, and the left side of the through hole of the ball hinge seat is an SR hole matched with the ball head of the piston rod; the ball hinge seat pressing block is arranged at the left end of the through hole of the ball hinge seat in a sliding fit manner, and the right end of the ball hinge seat pressing block is a spherical surface matched with the ball head of the piston rod; and the axis of the ball hinge seat pressing block is provided with a lubricating channel which is communicated to the spherical surface at the right end of the ball hinge seat pressing block.

It further comprises the following steps: the end surface of the second-step platform of the ball screw seat pressing block is flush with the left end of the ball screw seat, and a lubricating channel of the ball screw seat pressing block is connected with a host self-lubricating system.

Threaded holes are symmetrically formed in two sides of the ball hinge seat, and external sensors are mounted on the threaded holes.

The bilateral symmetry of cylinder bottom is provided with the screw hole, installs external sensor on the screw hole.

The cylinder barrel is an integral forging, and the root of an inner hole of the cylinder barrel is provided with a section of annular groove with the diameter larger than the diameter of the cylinder barrel.

The guide sleeve is arranged at the front end of the cylinder barrel, and the piston rod penetrates through the guide sleeve; the guide sleeve is provided with a support ring matched with copper welding, and the root of the main seal on the guide sleeve is provided with an anti-extrusion step; the left end of the guide sleeve is provided with an anti-collision slope.

The piston is arranged at the inner end of the piston rod, and a copper welding matched supporting ring is adopted on the piston.

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

1. multi-angle adjustment: the deviation of the host system can be corrected from different directions by adjusting the ball screw seat and the ball screw seat pressing block;

2. and (3) accurate deviation rectification: displacement detectors are arranged on the cylinder bottom and the ball hinge base, and can effectively detect the extension length of the piston rod and convert the deviation correction angle;

3. easy installation, maintenance: the deviation correcting structure is convenient to assemble, the ball hinge seat pressing block is connected with the self-lubricating system, manual lubrication is not needed, and meanwhile, the oil cup is prevented from interfering with the internal structure of the main machine during movement;

4. high pressure resistance: the integral forging piece of the cylinder barrel reduces the risk of oil leakage under high pressure due to weld defects, the root part of the inner hole is provided with the annular groove, the large-cavity oil port thread is prevented from scratching and sealing, and the problem that the root part cannot be scraped is solved; copper welding and supporting ring matching processes are adopted on the guide sleeve and the piston to form a small-gap supporting system, so that the high-pressure resistance and side-load resistance of the hydraulic cylinder are improved; the anti-collision slope is arranged on the outer side of the guide sleeve, so that collision between the ball screw seat and the guide sleeve during rotation can be avoided, and meanwhile, the guide length is also increased.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic view of the cylinder barrel construction;

FIG. 5 is a schematic view of a guide sleeve copper welding structure;

FIG. 6 is a schematic diagram of a piston brazing structure;

in the figure: 1. pressing blocks of the ball hinge seats; 1-1, lubricating a channel; 2. a ball screw seat; 3. a piston rod; 4. a guide sleeve; 4-1, anti-collision slope; 5. a cylinder barrel; 6. a piston; 7. a threaded hole; 8. an annular groove.

Detailed Description

The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.

As shown in the combined drawings 1-3, the ball hinge seat 2 of the high-reliability multi-angle deviation-correcting hydraulic cylinder is rectangular, and four threaded holes are formed in the left end face of the ball hinge seat 2 and used for being connected with a host. A through hole is arranged in the center of the ball-hinged seat 2, and the ball head of the piston rod 3 is arranged in the through hole of the hinged seat 2; the right side of the through hole of the ball hinge seat 2 is a horn-shaped hole, and the left side of the through hole of the ball hinge seat 2 is an SR hole matched with the ball head of the piston rod 3.

The ball hinge seat pressing block 1 is installed at the left end of the through hole of the ball hinge seat 2 in a sliding fit mode, and the right end of the ball hinge seat pressing block 1 is a spherical surface matched with the ball head of the piston rod 3. The ball-stranding seat and the ball-stranding seat pressing block do not need to be fixed by screws, and the ball-stranding seat pressing block is directly embedded into the through hole of the ball-stranding seat 2, so that the assembly is convenient, and the occupied space is reduced. After the ball hinge seat pressing block is assembled, the right end of the ball hinge seat pressing block is matched with the ball head, and the end face of the second stage at the left end of the ball hinge seat pressing block is flush with the ball hinge seat. When the drilling force needs to be corrected, the ball head is propped against the pressing block of the ball hinge seat, and the pressing block can be pushed in from different directions to carry out multi-angle adjustment.

The axis of the ball hinge seat pressing block 1 is provided with a lubricating channel 1-1, and the lubricating channel 1-1 is communicated with the spherical surface at the right end of the ball hinge seat pressing block 1. The lubricating channel 1-1 of the ball winch seat pressing block 1 is connected with a main machine self-lubricating system, lubricating oil can be directly pumped into the ball winch seat pressing block 1 without manual lubrication, and meanwhile, the oil cup is prevented from interfering with the internal structure of the main machine during movement, so that the ball winch seat pressing block plays a role in easy installation and maintenance.

Threaded holes 7 are symmetrically formed in the two sides of the ball hinge seat 2 and the two sides of the bottom of the cylinder barrel 5 respectively, and the threaded holes 7 are used for installing external sensors. After the hydraulic cylinder and the host are installed, an external sensor can be installed on one side according to actual conditions, one side of the external sensor is installed at the cylinder bottom, and the other side of the external sensor is installed on the outer plane of the ball-hinged seat, so that the extension length of the piston rod can be effectively detected, and the deviation correcting angle can be converted.

As shown in the combined figure 4, the cylinder barrel 5 is an integral forged piece, a joint and a cylinder bottom structure which are separately arranged are omitted, and the risk of oil leakage under high pressure caused by weld defects is reduced. The root of the inner hole of the cylinder barrel 5 is provided with an annular groove 8 with a diameter larger than the diameter of the cylinder barrel 5, so that the large-cavity oil port is prevented from being scratched and sealed, and the problem that the scraping head cannot process the root of the inner hole is solved.

As shown in fig. 5, the guide sleeve 4 is mounted at the front end of the cylinder 5, and the piston rod 3 passes through the guide sleeve 4; the guide sleeve 4 is provided with a support ring matched with the copper welding, and the root of the main seal on the guide sleeve 4 is provided with an anti-extrusion step. The left end of the guide sleeve 4 is provided with an anti-collision slope 4-1, the anti-collision slope 4-1 can avoid collision with the guide sleeve when the ball screw seat rotates, and meanwhile, the guide length is also increased.

Referring to fig. 6, the piston 6 is installed at the inner end of the piston rod 3, and the piston 6 is provided with a copper welding support ring to form a small-gap support system, so that the lateral load resistance of the hydraulic cylinder is improved.