CN212775027U

CN212775027U - Hydraulic cylinder convenient for adjusting telescopic length

Info

Publication number: CN212775027U
Application number: CN202021546702.7U
Authority: CN
Inventors: 何晓俊
Original assignee: Shanghai Dongji Hydrauli Engineering Co ltd
Current assignee: Shanghai Dongji Hydrauli Engineering Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-23
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a hydraulic cylinder convenient for adjusting the telescopic length, which relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder convenient for adjusting the telescopic length, comprising a hydraulic cylinder body, wherein both ends of the hydraulic cylinder body are fixedly connected with a first circular plate, one side of the first circular plate is fixedly connected with a cylinder body, a cylinder body outer sleeve is provided with a connecting block, the connecting block is provided with a chute, a cylinder body inner sleeve is provided with a rod body, the rod body is in sliding connection with the cylinder body, the part of the rod body, outside the range of the cylinder body sleeve, is sleeved with a first nut, the first nut is in threaded connection with the rod body, one side of the first nut is fixedly connected with a slide block, one end of the slide block is arranged in the chute, the slide block is in sliding connection with the chute, the utility model can adjust the telescopic length of the hydraulic cylinder body by rotating, and can further operate under the condition that the pneumatic cylinder body does not start, easy operation is convenient.

Description

Hydraulic cylinder convenient for adjusting telescopic length

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a pneumatic cylinder convenient to adjust flexible length.

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 output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.

The telescopic length of the existing hydraulic cylinder is fixed and not adjustable, if the telescopic length of the hydraulic cylinder is required to be adjusted, the hydraulic cylinder can be replaced completely, and the hydraulic cylinder is very troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic cylinder convenient to adjust flexible length to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a pneumatic cylinder convenient to adjust flexible length, includes the pneumatic cylinder body, the first plectane of the equal fixedly connected with in both ends of pneumatic cylinder body, one side fixedly connected with barrel of first plectane, the barrel overcoat is equipped with the connecting block, the spout has been seted up to the connecting block, the barrel endotheca is equipped with the body of rod, the body of rod and barrel sliding connection, the body of rod is equipped with first nut at the barrel portion overcoat outside establishing the scope, first nut and body of rod threaded connection, one side fixedly connected with slider of first nut, the one end setting of slider is in the spout, slider and spout sliding connection, the body of rod sets up the one end fixedly connected with second plectane outside the barrel, one side fixedly connected with of second plectane articulates the piece.

As a further aspect of the present invention: a plurality of through holes are formed in the first circular plate, a plurality of lead screws are fixedly connected to one side of the second circular plate, the lead screws penetrate through the first circular plate through the through holes, and the lead screws are connected with the through holes in a sliding mode.

As a further aspect of the present invention: the screw rod is sleeved with a second nut and a third nut, the second nut and the third nut are both in threaded connection with the screw rod, the second nut is arranged on one side of the first circular plate, and the third nut is arranged on the other side of the first circular plate.

As a further aspect of the present invention: the articulated block is internally sleeved with a bearing, and the bearing is fixedly connected with the articulated block.

As a further aspect of the present invention: the oil pipe cover of pneumatic cylinder body has closed the stopper, the stopper and the oil pipe sliding connection of pneumatic cylinder body.

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

1. the utility model discloses a rotate first nut and can be at the flexible length of regulation pneumatic cylinder body, can further operate under the condition that the pneumatic cylinder body does not start moreover, easy operation is convenient, avoids changing the pneumatic cylinder body.

2. The utility model discloses be provided with the stopper, the oil pipe of pneumatic cylinder body is plugged in when the pneumatic cylinder body does not use during the effect of stopper, avoids the dust to pollute the pneumatic cylinder body through this internally of oil pipe entering pneumatic cylinder.

Drawings

Fig. 1 is a schematic structural view of a hydraulic cylinder facilitating adjustment of a telescopic length.

Fig. 2 is a top view of a hydraulic cylinder that facilitates adjustment of the telescopic length.

Fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Shown in the figure: the hydraulic cylinder comprises a hydraulic cylinder body 1, a screw rod 2, a first circular plate 3, a cylinder body 4, a second circular plate 5, a hinge block 6, a first nut 7, a rod body 8, a through hole 9, a plug 10, a sliding block 11, a sliding groove 12, a connecting block 13, a second nut 14, a third nut 15 and a bearing 16.

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 to 3, in an embodiment of the present invention, a hydraulic cylinder convenient for adjusting a telescopic length includes a hydraulic cylinder body 1, a screw rod 2, a first circular plate 3, a cylinder body 4, a second circular plate 5, a hinge block 6, a first nut 7, a rod body 8, a through hole 9, a plug 10, a slider 11, a sliding slot 12, a connecting block 13, a second nut 14, a third nut 15 and a bearing 16, wherein the first circular plate 3 is fixedly connected to both ends of the hydraulic cylinder body 1, the cylinder body 4 is fixedly connected to one side of the first circular plate 3, the connecting block 13 is sleeved outside the cylinder body 4, the sliding slot 12 is formed in the connecting block 13, the rod body 8 is sleeved inside the cylinder body 4, the rod body 8 is slidably connected to the cylinder body 4, the first nut 7 is sleeved outside the range of the cylinder body 4, the first nut 7 is threadedly connected to the rod body 8, the slider 11 is fixedly connected to one side of the first nut 7, one end, slider 11 and spout 12 sliding connection, the body of rod 8 sets up the one end fixedly connected with second plectane 5 outside barrel 4, one side fixedly connected with of second plectane 5 articulates piece 6, a plurality of through-hole 9 have been seted up to first plectane 3, one side fixedly connected with of second plectane 5 a plurality of lead screw 2, lead screw 2 runs through first plectane 3 through-hole 9, lead screw 2 and through-hole 9 sliding connection, lead screw 2 overcoat is equipped with second nut 14 and third nut 15, second nut 14 and third nut 15 all with lead screw 2 threaded connection, second nut 14 sets up the one side at first plectane 3, third nut 15 sets up the opposite side at first plectane 3, articulated piece 6 endotheca is equipped with bearing 16, bearing 16 and articulated piece 6 fixed connection, the oil pipe lid of pneumatic cylinder body 1 has stopper 10, stopper 10 and pneumatic cylinder body 1's oil pipe sliding connection.

The utility model discloses a theory of operation is:

when the telescopic length of the hydraulic cylinder body 1 needs to be adjusted, a tool is used for screwing the second nut 14 and the third nut 15, so that the second nut 14 and the third nut 15 both move towards the direction far away from the first circular plate 3, the limit between the screw rod 2 and the first circular plate 3 is removed, the screw rod 2 can slide in the through hole 9, the tool is further used for rotating the first nut 7, the first nut 7 further drives the sliding block 11 to rotate, the first nut 7 cannot move left and right due to the fact that one end of the sliding block 11 is arranged in the sliding groove 12, the first nut 7 can drive the rod body 8 to extend out of the cylinder body 4 or retract into the cylinder body 4 according to the rotating direction when rotating, the adjustment of the length of the hydraulic cylinder body 1 is achieved, the screw rod 2 is used for positioning the second circular plate 5, the rotation of the second circular plate 5 is avoided, the second nut 14 and the third nut 15 are further rotated, the second nut 14 and the third nut 15 are moved towards the first circular plate 3 until the second nut 14 and the third nut 15 are in close contact with the first circular plate 3, so that the limiting between the screw rod 2 and the first circular plate 3 is realized, the limiting of the hinge block 6 is further realized through the screw rod 2 and the second circular plate 5, the oil pipe of the hydraulic cylinder body 1 is plugged when the hydraulic cylinder body 1 is not used under the action of the plug 10, and dust is prevented from entering the hydraulic cylinder body 1 through the oil pipe to pollute the hydraulic cylinder body 1.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a pneumatic cylinder convenient to adjust flexible length, includes pneumatic cylinder body (1), its characterized in that: the two ends of the hydraulic cylinder body (1) are fixedly connected with first circular plates (3), one side of each first circular plate (3) is fixedly connected with a cylinder body (4), a connecting block (13) is sleeved outside the cylinder body (4), a sliding groove (12) is formed in the connecting block (13), a rod body (8) is sleeved inside the cylinder body (4), the rod body (8) is connected with the cylinder body (4) in a sliding mode, a first nut (7) is sleeved outside the range of sleeving of the rod body (4) on the rod body (8), the first nut (7) is connected with the rod body (8) in a threaded mode, a sliding block (11) is fixedly connected with one side of the first nut (7), one end of the sliding block (11) is arranged inside the sliding groove (12), the sliding block (11) is connected with the sliding groove (12) in a sliding mode, and a second circular plate (5) is fixedly connected with one end of the rod body (8) outside the cylinder, one side of the second circular plate (5) is fixedly connected with a hinge block (6).

2. The hydraulic cylinder facilitating adjustment of a reach length of claim 1, wherein: a plurality of through holes (9) are formed in the first circular plate (3), a plurality of lead screws (2) are fixedly connected to one side of the second circular plate (5), the lead screws (2) penetrate through the first circular plate (3) through the through holes (9), and the lead screws (2) are connected with the through holes (9) in a sliding mode.

3. A hydraulic cylinder for facilitating adjustment of a reach length as set forth in claim 2, wherein: the screw rod (2) is sleeved with a second nut (14) and a third nut (15), the second nut (14) and the third nut (15) are both in threaded connection with the screw rod (2), the second nut (14) is arranged on one side of the first circular plate (3), and the third nut (15) is arranged on the other side of the first circular plate (3).

4. The hydraulic cylinder facilitating adjustment of a reach length of claim 1, wherein: articulated piece (6) endotheca is equipped with bearing (16), bearing (16) and articulated piece (6) fixed connection.

5. The hydraulic cylinder facilitating adjustment of a reach length of claim 1, wherein: the oil pipe cover of pneumatic cylinder body (1) has stopper (10), stopper (10) and the oil pipe sliding connection of pneumatic cylinder body (1).