CN210371428U

CN210371428U - High-sealing quick multi-cavity hydraulic oil cylinder

Info

Publication number: CN210371428U
Application number: CN201920693789.1U
Authority: CN
Inventors: 李刚; 邓海顺; 杨先春
Original assignee: XUZHOU AOBO MACHINERY TECHNOLOGY CO LTD
Current assignee: XUZHOU AOBO MACHINERY TECHNOLOGY CO LTD
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-21
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a high-sealing quick multi-cavity hydraulic oil cylinder, which comprises a cylinder body, wherein a piston is arranged in the cylinder body, the top of the piston is fixedly connected with a piston rod, the outer wall of the cylinder body is fixedly connected with a fixing ring, the outer walls of the two sides of the fixing ring are fixedly connected with fixing blocks, a sealing frame is arranged above the fixing blocks and is positioned outside the cylinder body, the bottom parts of the two sides and the fixed block are both provided with a first threaded hole, the first threaded hole is internally threaded with a bolt, the two sides of the top end of the sealing frame are both provided with a second threaded hole, and the sealing frame and the center of the top of the cylinder body are both provided with through holes, the piston rod passes through the through holes and extends out of the sealing frame, the through hole is internally inserted with a sealing sleeve, the bottom end of the sealing sleeve extends into the cylinder body, and reinforcing mechanisms are arranged on two sides of the sealing sleeve.

Description

High-sealing quick multi-cavity hydraulic oil cylinder

Technical Field

The utility model relates to a hydraulic cylinder technical field specifically is a quick multicavity hydraulic cylinder of high seal.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The common hydraulic cylinder structure is that a cavity is filled with liquid with certain pressure to act on the working area of a piston, so that the piston generates working pressure, the quick multi-cavity hydraulic cylinder is provided with a plurality of cavities at the axial position of the cylinder, the total generated working pressure is equal to the sum of the working pressures of the cavities, and the quick multi-cavity hydraulic cylinder has the advantage of high adjusting speed, so that the application of the hydraulic cylinder is more and more extensive. The existing quick multi-cavity hydraulic oil cylinder is poor in sealing performance due to the structural design, so that hydraulic oil leakage can be caused, the working environment is seriously influenced, and the working stability of the quick multi-cavity hydraulic oil cylinder can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming the poor defect of the quick multicavity hydraulic cylinder leakproofness of prior art, provide a high sealed quick multicavity hydraulic cylinder. The high-sealing quick multi-cavity hydraulic oil cylinder has the characteristics of high stability, good sealing property, difficulty in oil leakage and the like.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high sealed quick multicavity hydraulic cylinder, includes the cylinder body, be provided with the piston in the cylinder body, the top fixedly connected with piston rod of piston, the solid fixed ring of outer wall fixedly connected with of cylinder body, the equal fixedly connected with fixed block of solid fixed ring's both sides outer wall, the top of fixed block is provided with the seal frame, the seal frame is located the outside of cylinder body, has all seted up first screw hole on its both sides bottom and the fixed block, first screw hole female connection has the bolt, the second screw hole has all been seted up to the top both sides of seal frame, just the through-hole has all been seted up with the top center of cylinder body to the seal frame, the piston rod passes the through-hole and extends to outside the seal frame, the seal cover has been inserted in the through-hole, the bottom of seal cover.

Preferably, the reinforcing mechanism includes the gusset plate, the gusset plate is the arc, is located the both sides of seal cover, just the lateral wall fixedly connected with driving frame of gusset plate, be provided with the transmission piece in the driving frame, fixedly connected with threaded rod on the transmission piece, the threaded rod runs through driving frame and threaded connection in the second threaded hole, just the terminal fixedly connected with crank of threaded rod, the equal fixedly connected with fixing base in both sides of driving frame, be provided with the rod axle on the fixing base, the axle body swing joint of rod axle has the movable rod.

Preferably, the two sides of the threaded rod are both provided with fixed rods, one ends of the fixed rods are fixedly connected to the inner wall of the sealing frame, the other ends of the fixed rods are fixedly connected with limiting blocks, the rod bodies of the fixed rods are sleeved with sliding blocks, springs are fixedly connected between the sliding blocks and the limiting blocks, rod shafts are also arranged on the sliding blocks, and the other ends of the movable rods are movably connected to the sliding blocks through the rod shafts.

Preferably, the outer wall surface of the sealing sleeve is provided with a layer of sealing ring, the outer diameter of the sealing ring is equal to the aperture of the through hole, and the centers of the sealing sleeve, the through hole and the piston rod are positioned on the same straight line.

Preferably, the two sides of the bottom of the sealing frame are fixedly connected with positioning blocks, and positioning grooves matched with the positioning blocks are formed in the fixing blocks.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses stability is high, sealing performance is good, through inserting the seal cover to the through-hole in, the gap between seal cover and the through-hole is filled to the sealing washer of usable seal cover outer wall, thereby the oil that takes over when preventing that the piston rod from carrying out concertina movement spills from the gap, then can play sealed effect, can drive the threaded rod along second screw hole inward movement through holding and rotating the crank, its terminal driving block can drive the transmission frame and move together with the gusset plate when the threaded rod moves, until supporting the gusset plate the outer wall at the seal cover, thereby can improve the stability of seal cover, the seal cover takes place the displacement thereupon and influences its sealed effect when preventing the piston rod motion.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

figure 2 is a bottom view of the gland;

fig. 3 is an enlarged view of fig. 1 at a.

Reference numbers in the figures: the device comprises a cylinder body 1, a piston 2, a piston rod 3, a fixing ring 4, a fixing block 5, a sealing frame 6, a first threaded hole 7, a bolt 8, a second threaded hole 9, a through hole 10, a sealing sleeve 11, a reinforcing plate 12, a transmission frame 13, a transmission block 14, a threaded rod 15, a crank 16, a fixing seat 17, a movable rod 18, a fixing rod 19, a limiting block 20, a sliding block 21, a spring 22, a sealing ring 23, a positioning block 24 and a positioning groove 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-sealing quick multi-cavity hydraulic oil cylinder comprises a cylinder body 1, a piston 2 is arranged in the cylinder body 1, a piston rod 3 is fixedly connected to the top of the piston 2, a fixing ring 4 is fixedly connected to the outer wall of the cylinder body 1, fixing blocks 5 are fixedly connected to the outer walls of the two sides of the fixing ring 4, a sealing frame 6 is arranged above the fixing blocks 5, positioning blocks 24 are fixedly connected to the two sides of the bottom of the sealing frame 6, positioning grooves 25 matched with the positioning blocks 24 are formed in the fixing blocks 5, the stability of the sealing frame 6 can be improved by the aid of the positioning grooves 25 and the positioning blocks 24, the sealing frame 6 is located outside the cylinder body 1, first threaded holes 7 are formed in the bottoms of the two sides and the fixing blocks 5, bolts 8 are connected with the first threaded holes 7 in a threaded manner, second threaded holes 9 are formed in the two sides of the top, the piston rod 3 passes through the through hole 10 and extends out of the sealing frame 6, the sealing sleeve 11 is inserted into the through hole 10, the bottom end of the sealing sleeve 11 extends into the cylinder body 1, the outer wall surface of the sealing sleeve 11 is provided with a layer of sealing ring 23, the outer diameter of the sealing ring 23 is equal to the aperture of the through hole 10, the centers of the sealing sleeve 11, the through hole 10 and the piston rod 3 are positioned on the same straight line, the sealing ring 23 is made of rubber and has elasticity, and can fill the gap between the sealing sleeve 11 and the through hole 10, so that the sealing performance of the piston rod 3 during movement is improved, oil leakage is prevented, the two sides of the sealing sleeve 11 are provided with reinforcing mechanisms, each reinforcing mechanism comprises a reinforcing plate 12, the reinforcing plates 12 are arc-shaped and are positioned on the two sides of the sealing sleeve 11, the side walls of the reinforcing plates 12 are fixedly connected with a driving frame 13, a driving block 14, the tail end of the threaded rod 15 is fixedly connected with a crank 16, both sides of the transmission frame 13 are fixedly connected with fixing seats 17, a rod shaft is arranged on the fixing seats 17, a movable rod 18 is movably connected to the shaft body of the rod shaft, both sides of the threaded rod 15 are provided with fixing rods 19, one end of each fixing rod 19 is fixedly connected to the inner wall of the sealing frame 6, the other end of each fixing rod 19 is fixedly connected with a limiting block 20, a sliding block 21 is sleeved on the rod body of each fixing rod 19, the limiting block 20 can play a role of blocking the sliding block 21, the sliding block 21 is prevented from being separated from the fixing rods 19, a spring 22 is fixedly connected between the sliding block 21 and the limiting block 20, the rod shaft is also.

The working principle is as follows: when the utility model is used, firstly, the sealing frame 6 is fixed on the fixed block 5 through the bolt 8, then the sealing sleeve 11 is inserted into the through hole 10, the bottom end of the sealing sleeve extends into the cylinder body 1, the piston rod 3 penetrates through the sealing sleeve 11 and the through hole 10, the sealing ring 23 is arranged on the outer wall surface of the sealing sleeve 11, the sealing ring 23 can be used for filling the gap between the sealing sleeve 11 and the through hole 10, thereby preventing the oil brought out when the piston rod 3 performs the telescopic motion from leaking from the gap, and further playing the role of sealing, the threaded rod 15 can be driven to move inwards along the second threaded hole 9 by holding and rotating the crank 16, the transmission block 14 at the tail end of the threaded rod 15 drives the transmission frame 13 to move together with the reinforcing plate 12 when the threaded rod 15 moves, until the reinforcing plate 12 is pressed against the outer wall of the sealing sleeve 11, therefore, the stability of the sealing sleeve 11 can be improved, and the sealing effect of the sealing sleeve 11 is prevented from being influenced by the displacement of the sealing sleeve 11 when the piston rod 3 moves.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick multicavity hydraulic cylinder of high leakproofness, includes cylinder body (1), its characterized in that: the cylinder is characterized in that a piston (2) is arranged in the cylinder body (1), the top of the piston (2) is fixedly connected with a piston rod (3), the outer wall of the cylinder body (1) is fixedly connected with a fixing ring (4), the outer walls of the two sides of the fixing ring (4) are fixedly connected with fixing blocks (5), a sealing frame (6) is arranged above the fixing blocks (5), the sealing frame (6) is positioned outside the cylinder body (1), the bottoms of the two sides of the sealing frame and the fixing blocks (5) are respectively provided with a first threaded hole (7), the first threaded holes (7) are in threaded connection with a bolt (8), the two sides of the top end of the sealing frame (6) are respectively provided with a second threaded hole (9), the sealing frame (6) and the center of the top of the cylinder body (1) are respectively provided with a through hole (10), and the piston rod (3), the cylinder is characterized in that a sealing sleeve (11) is inserted into the through hole (10), the bottom end of the sealing sleeve (11) extends into the cylinder body (1), and reinforcing mechanisms are arranged on two sides of the sealing sleeve (11).

2. A high seal, rapid multi-chamber hydraulic ram according to claim 1 wherein: the reinforcing mechanism comprises a reinforcing plate (12), the reinforcing plate (12) is arc-shaped and located on two sides of a sealing sleeve (11), a transmission frame (13) is fixedly connected to the side wall of the reinforcing plate (12), a transmission block (14) is arranged in the transmission frame (13), a threaded rod (15) is fixedly connected to the transmission block (14), the threaded rod (15) penetrates through the transmission frame (13) and is in threaded connection with a second threaded hole (9), a crank (16) is fixedly connected to the tail end of the threaded rod (15), fixing seats (17) are fixedly connected to two sides of the transmission frame (13), a rod shaft is arranged on each fixing seat (17), and a movable rod (18) is movably connected to the shaft body of the rod shaft.

3. A high seal, rapid multi-chamber hydraulic ram according to claim 2 wherein: the two sides of the threaded rod (15) are respectively provided with a fixed rod (19), one end of each fixed rod (19) is fixedly connected to the inner wall of the sealing frame (6), the other end of each fixed rod is fixedly connected with a limiting block (20), a sliding block (21) is sleeved on the rod body of each fixed rod (19), a spring (22) is fixedly connected between each sliding block (21) and each limiting block (20), a rod shaft is also arranged on each sliding block (21), and the other end of each movable rod (18) is movably connected to each sliding block (21) through the rod shaft.

4. A high seal, rapid multi-chamber hydraulic ram according to claim 1 wherein: the outer wall surface of the sealing sleeve (11) is provided with a layer of sealing ring (23), the outer diameter of the sealing ring is equal to the aperture of the through hole (10), and the centers of the sealing sleeve (11), the through hole (10) and the piston rod (3) are positioned on the same straight line.

5. A high seal, rapid multi-chamber hydraulic ram according to claim 1 wherein: the sealing device is characterized in that positioning blocks (24) are fixedly connected to two sides of the bottom of the sealing frame (6), and positioning grooves (25) matched with the positioning blocks (24) are formed in the fixing blocks (5).