阅读说明：本技术 一种摆动液压缸 (Swing hydraulic cylinder ) 是由 曹源 陈洁 杜浩斌 王鑫 乐昌兴 夏学良 于 2020-05-09 设计创作，主要内容包括：本发明提供了一种摆动液压缸,包括缸筒,所述缸筒内设有驱动轴,驱动轴与缸筒之间设有叶片,叶片与驱动轴连接,所述叶片上设有转矩输出块,转矩输出块穿过缸筒和叶片与驱动轴连接,所述缸筒内还设有固定块,固定块与缸筒内壁连接,所述固定块上方设有第一油腔,下方设有第二油腔,所述缸筒外侧设有第一油嘴和第二油嘴,所述第一油嘴与第一油腔连通,所述第二油嘴与第二油腔连通,所述缸筒一端设有前盖,另一端设有后盖底座；大大的减短了液压缸输出轴的力臂,可以提高摆动液压缸的输出转矩以及机械效率,根据需要可选择叶片数量,从而得到不一样的摆动角度及转矩,适用范围广,适合推广使用。(The invention provides a swing hydraulic cylinder which comprises a cylinder barrel, wherein a driving shaft is arranged in the cylinder barrel, a blade is arranged between the driving shaft and the cylinder barrel, the blade is connected with the driving shaft, a torque output block is arranged on the blade, the torque output block penetrates through the cylinder barrel and the blade to be connected with the driving shaft, a fixed block is also arranged in the cylinder barrel, the fixed block is connected with the inner wall of the cylinder barrel, a first oil cavity is arranged above the fixed block, a second oil cavity is arranged below the fixed block, a first oil nozzle and a second oil nozzle are arranged on the outer side of the cylinder barrel, the first oil nozzle is communicated with the first oil cavity, the second oil nozzle is communicated with the second oil cavity, a front cover is arranged at one; the arm of force of the hydraulic cylinder output shaft is greatly shortened, the output torque and the mechanical efficiency of the swing hydraulic cylinder can be improved, the number of the blades can be selected as required, different swing angles and different torques can be obtained, the application range is wide, and the swing hydraulic cylinder is suitable for popularization and use.)

1. A swing hydraulic cylinder is characterized in that: the oil cylinder comprises a cylinder barrel (3), a driving shaft (11) is arranged in the cylinder barrel (3), a blade (6) is arranged between the driving shaft (11) and the cylinder barrel (3), the blade (6) is connected with the driving shaft (11), a torque output block (5) is arranged on the blade (6), the torque output block (5) penetrates through the cylinder barrel (3) and the blade (6) to be connected with the driving shaft (11), a fixed block (10) is further arranged in the cylinder barrel (3), the fixed block (10) is connected with the inner wall of the cylinder barrel (3), a first oil cavity (13) is arranged above the fixed block (10), a second oil cavity (14) is arranged below the fixed block (10), a first oil nozzle (9) and a second oil nozzle (12) are arranged on the outer side of the cylinder barrel (3), the first oil nozzle (9) is communicated with the first oil cavity (13), the second oil nozzle (12) is communicated with the second oil cavity (14), a front cover (, the other end is provided with a rear cover base (4);

by injecting hydraulic oil into the first oil chamber (13) or the second oil chamber (14), the drive shaft (11), the vane (6), and the torque output block (5) are driven to rotate.

2. The oscillating hydraulic cylinder of claim 1, wherein: the fixed block (10) is connected with the cylinder barrel (3) through a bolt, one end of the fixed block (10) abuts against the inner wall of the cylinder barrel (3), the other end of the fixed block (10) abuts against the driving shaft (11), and a sealing ring is arranged at the joint of the fixed block (10) and the cylinder barrel (3) and the driving shaft (11).

3. The oscillating hydraulic cylinder of claim 1, wherein: the torque output block (5) penetrates through a first square groove (301) in the cylinder barrel (3) and a second square groove (601) in the blade (6), the end of the torque output block (5) abuts against a third square groove (1101) in the driving shaft (11), and the torque output block (5) is connected with the driving shaft (11) through a bolt.

4. The oscillating hydraulic cylinder of claim 1, wherein: the outer side of each blade (6) abuts against the inner wall of the cylinder barrel (3), the inner side of each blade abuts against the driving shaft (11), each blade (6) is connected with the driving shaft (11) through a bolt, a sealing ring is arranged between each blade (6) and the cylinder barrel (3), and the sealing ring is arranged between each blade (6) and the driving shaft (11).

5. The oscillating hydraulic cylinder of claim 1, wherein: the driving shaft (11) and the cylinder barrel (3) are coaxial, one end of the driving shaft (11) penetrates through the front cover (7), the other end of the driving shaft (11) penetrates through the rear cover base (4), and a sealing ring is arranged between the driving shaft (11) and the front cover (7) as well as between the driving shaft and the rear cover base (4).

6. The oscillating hydraulic cylinder of claim 1, wherein: the front cover (7) is connected with the end face of the cylinder barrel (3) through a bolt, a sealing ring is arranged between the front cover (7) and the cylinder barrel (3), the front cover (7) abuts against the blade (6), and the sealing ring is arranged between the front cover (7) and the blade (6).

7. The oscillating hydraulic cylinder of claim 1, wherein: back lid base (4) are connected with cylinder (3) terminal surface through the bolt, are equipped with the sealing washer between back lid base (4) and cylinder (3), back lid base (4) one end is supported and is leaned on blade (6), be equipped with the sealing washer between back lid base (4) and blade (6), drive shaft (11) tip is equipped with shield (8), and shield (8) are connected with back lid base (4) through the bolt.

8. The oscillating hydraulic cylinder of claim 1, wherein: the connecting shaft sleeve is characterized in that a connecting shaft sleeve (1) is arranged on the outer side of the cylinder barrel (3), the cylinder barrel (3) penetrates into a sleeve hole (103) in the connecting shaft sleeve (1), a clamping groove (101) in the connecting shaft sleeve (1) is abutted against a torque output block (5), first through holes (102) are formed in two sides of the clamping groove (101), and the connecting shaft sleeve (1) penetrates through the first through holes (102) through a first bolt (2) and a second through hole (502) in the torque output block (5) to be connected with the torque output block (5).

9. A swing cylinder as defined in claim 3 wherein: the second square groove (601) and the third square groove (1101) are matched with the torque output block (5).

10. A swing cylinder as defined in claim 3 wherein: the torque output block (5) rotates in the first square groove (301).

Technical Field

The invention relates to the field of hydraulic oil cylinders, in particular to a swing hydraulic cylinder.

Background

The torque output part of the traditional vane type and piston type swing hydraulic cylinder is one end of a cylinder barrel outer driving shaft, the output force arm of the traditional vane type and piston type swing hydraulic cylinder is longer, and the stress of the driving shaft is concentrated on the connecting part when the driving shaft drives the outer part to rotate.

Chinese patent CN208918954U "a swing type hydraulic cylinder" adopts a conventional front-end combined shaft to output torque, and the length of the combined shaft is the output arm of the torque, so that the torque output is reduced, and the mechanical efficiency is reduced.

Disclosure of Invention

The invention mainly aims to provide a swing hydraulic cylinder, which solves the problems of reducing the output force arm and improving the output torque and mechanical efficiency of a driving shaft.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a swing hydraulic cylinder comprises a cylinder barrel, wherein a driving shaft is arranged in the cylinder barrel, a blade is arranged between the driving shaft and the cylinder barrel and connected with the driving shaft, a torque output block is arranged on the blade and connected with the driving shaft through the cylinder barrel and the blade, a fixed block is further arranged in the cylinder barrel and connected with the inner wall of the cylinder barrel, a first oil cavity is arranged above the fixed block, a second oil cavity is arranged below the fixed block, a first oil nozzle and a second oil nozzle are arranged on the outer side of the cylinder barrel and communicated with the first oil cavity, the second oil nozzle is communicated with the second oil cavity, a front cover is arranged at one end of the cylinder barrel, and a rear cover base is arranged at the other end of the; and injecting hydraulic oil into the first oil cavity or the second oil cavity to drive the driving shaft, the blade and the torque output block to rotate.

In the preferred scheme, the fixed block passes through the bolt and is connected with the cylinder, fixed block one end is supported and is leaned on the cylinder inner wall, and the other end supports and leans on the drive shaft, fixed block and cylinder and drive shaft junction are equipped with the sealing washer.

In a preferable scheme, the torque output block penetrates through a first square groove on the cylinder barrel and a second square groove on the blade, the end part of the torque output block abuts against a third square groove on the driving shaft, and the torque output block is connected with the driving shaft through a bolt.

In the preferred scheme, the outer side of each blade abuts against the inner wall of the cylinder barrel, the inner side of each blade abuts against the driving shaft, the blades are connected with the driving shaft through bolts, a sealing ring is arranged between each blade and the cylinder barrel, and a sealing ring is arranged between each blade and the driving shaft.

In the preferred scheme, the driving shaft and the cylinder barrel are coaxial, one end of the driving shaft penetrates through the front cover, the other end of the driving shaft penetrates through the rear cover base, and a sealing ring is arranged between the driving shaft and the front cover as well as between the driving shaft and the rear cover base.

In the preferred scheme, the front cover is connected with the end face of the cylinder barrel through a bolt, a sealing ring is arranged between the front cover and the cylinder barrel, the front cover abuts against the blade, and the sealing ring is arranged between the front cover and the blade.

In the preferred scheme, the rear cover base is connected with the end face of the cylinder barrel through a bolt, a sealing ring is arranged between the rear cover base and the cylinder barrel, one end of the rear cover base is abutted against the blade, the sealing ring is arranged between the rear cover base and the blade, and the end part of the driving shaft is provided with a dustproof cover which is connected with the rear cover base through a bolt.

In the preferred scheme, the connecting shaft sleeve is arranged on the outer side of the cylinder barrel, the clamping groove in the sleeve hole in the cylinder barrel penetrating into the connecting shaft sleeve is abutted against the torque output block, first through holes are formed in two sides of the clamping groove, and the connecting shaft sleeve penetrates through the first through holes and the second through holes in the torque output block through first bolts to be connected with the torque output block.

In a preferable scheme, the second square groove and the third square groove are matched with the torque output block.

Preferably, the torque output block rotates in the first square groove.

The invention provides a swing hydraulic cylinder, wherein a torque output block directly extends out of the interior of the hydraulic cylinder, so that the moment arm of an output shaft of the hydraulic cylinder is greatly shortened, the action surface of the torque output block is positioned on the action surface of hydraulic oil in the hydraulic cylinder, the output torque and the mechanical efficiency of the swing hydraulic cylinder can be improved, the structure is compact, the installation and the disassembly are simple and convenient in a bolt connection mode, sealing rings on all connection surfaces ensure the sealing of the hydraulic oil and avoid oil leakage, and the number of blades can be selected according to the requirement, so that different swing angles and torques can be obtained, the swing hydraulic cylinder is wide in application range and suitable for popularization and use.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a view of the overall device construction of the present invention;

FIG. 2 is an exploded view of the overall apparatus of the present invention;

FIG. 3 is a schematic view of the connection of the connecting bushing to the hydraulic cylinder according to the present invention;

FIG. 4 is a front cross-sectional view of the connection of the connecting bushing to the hydraulic cylinder in accordance with the present invention;

FIG. 5 is a side cross-sectional view of the connection of the connecting bushing to the hydraulic cylinder of the present invention;

FIG. 6 is a view of the construction of the coupling bushing of the present invention;

FIG. 7 is a view of the cylinder construction of the present invention;

FIG. 8 is a structural view of the torque output block of the present invention;

FIG. 9 is a structural view of a blade of the present invention;

FIG. 10 is a structural view of the drive shaft of the present invention;

FIG. 11 is a schematic view of a vertical installation application of the present invention;

FIG. 12 is a schematic view of a horizontal installation application of the present invention;

in the figure: a connecting shaft sleeve 1; a card slot 101; a first through-hole 102; trepan boring 103); a notch 104; a first bolt 2; a cylinder barrel 3; a first square groove 301; a rear cover base 4; a torque output block 5; a bolt hole 501; a second through hole 502; a blade 6; a second square groove 601; a front cover 7; a dust cover 8; a first oil nipple 9; a fixed block 10; a drive shaft 11; a third square slot 1101; the second oil nipple 12; a first oil chamber 13; a second oil chamber 14; a seal assembly 15; a first rotary platform 16; a movable hydraulic cylinder 17; a second rotary platform 18.

Detailed Description