CN213954052U

CN213954052U - Follow-up self-locking boosting hydraulic oil cylinder

Info

Publication number: CN213954052U
Application number: CN202023199734.7U
Authority: CN
Inventors: 杨国仪
Original assignee: Changzhou Sculptor Hydraulic Technology Co ltd
Current assignee: Changzhou Sculptor Hydraulic Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-13
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a servo self-locking reinforcement hydraulic cylinder, including the cylinder, the top bolt of cylinder has the cylinder cap, the bottom bolt of cylinder has the uide bushing, the top bolt on cylinder cap right side has the control box, the right side intercommunication of control box bottom has the protection spool, the right side intercommunication of the one end of control box and uide bushing is kept away from to the protection spool, the top welding of cylinder cap has the cylinder head, the inner chamber sliding connection of cylinder has the piston rod. The utility model discloses a sliding sleeve, small-size supercharged air pump, first three way connection, the cooperation of second three way connection and gas-supply pipe, can carry out the quick inflation to two small-size gasbags, can provide sufficient drive power to the card post, through the small-size gasbag, the cooperation of card post and draw-in groove, can carry out quick pneumatic locking fastening to the piston rod that extends to behind the suitable position, avoid the piston rod displacement to appear, cause electrical equipment to break down and damage, also shorten the auto-lock time of piston rod simultaneously.

Description

Follow-up self-locking boosting hydraulic oil cylinder

Technical Field

The utility model relates to a hydraulic cylinder field specifically is servo self-locking reinforcement hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), has simple structure and reliable work, can omit a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, and is widely applied to hydraulic systems of various machines.

Along with present electrical equipment plays an important role in the life production process, and when starting electrical equipment, hydraulic cylinder is one of the commonly used opening mode wherein, however current hydraulic cylinder is in the use, traditional hydraulic cylinder auto-lock mode is mechanical nut formula auto-lock mostly, after the hydro-cylinder piston rod stretches out required position, need the manpower to rotate the nut on the hydro-cylinder piston rod to the end and fix between the hydro-cylinder body and reach the locking effect, need the user to pay out the people among this and contact the nut on the hydro-cylinder piston rod to the end and the hydro-cylinder body, can't accomplish the quick locking of follow-up auto-lock, the auto-lock time of extension hydraulic cylinder, easily lead to the equipment to appear damaging.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a follow-up self-locking reinforcement hydraulic cylinder is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: follow-up self-locking boosting hydraulic cylinder, including the cylinder, the top bolt of cylinder has the cylinder cap, the uide bushing has been bolted to the bottom of cylinder, the top bolt on cylinder cap right side has the control box, the right side intercommunication of control box bottom has the protection spool, the one end that the control box was kept away from to the protection spool communicates with the right side of uide bushing, the top welding of cylinder cap has the cylinder head, the inner chamber sliding connection of cylinder has the piston rod, the front bolt of uide bushing has the mount, the both sides of uide bushing inner chamber all are bolted to have the fixed plate, the inner chamber of mount is provided with locking mechanism.

Preferably, the locking mechanism comprises a sliding sleeve, a small-sized supercharged air pump, a first three-way joint, a second three-way joint, an air pipe, a small-sized air bag, a clamping column and a clamping groove, the inner cavity of the fixed plate is sequentially embedded with sliding sleeves from top to bottom, the back of the inner cavity of the fixed frame is bolted with a small-sized supercharged air pump, the air outlet of the small-sized supercharged air pump is communicated with a first three-way joint, the two ends of the first three-way joint far away from the small-sized supercharged air pump are communicated with a second three-way joint through pipelines, the two ends of the second three-way joint far away from the first three-way joint are communicated with gas pipes, one end of each gas pipe far away from the second three-way joint penetrates through the guide sleeve and is communicated with the small-sized air bag, the outside of small-size gasbag and the inner wall bolt of uide bushing, the inboard of small-size gasbag has the card post from last to down bolt in proper order, the draw-in groove that uses with the cooperation of card post has been seted up in proper order down to the both sides of piston rod from last.

Preferably, the shape of card post and draw-in groove all sets up to the cylinder, card post and draw-in groove are vertical array column structure along the center department of piston rod and distribute, the quantity of draw-in groove is the integral multiple of card post quantity three.

Preferably, the center of the front surface of the small air bag is communicated with a pressure relief pipe, and the front end of the pressure relief pipe is communicated with a small electric pressure relief valve.

Preferably, the two opposite sides of the small air bag are bolted with return springs, and one side of each return spring, which is far away from the small air bag, is bolted with the outer side of the fixing plate.

Preferably, the periphery of the cylinder cover is bolted with mounting blocks, elongated bolts are inserted into inner cavities of the mounting blocks, fixing blocks matched with the elongated bolts are bolted on the periphery of the guide sleeve, and fastening nuts are connected to the bottoms of the elongated bolts in a threaded mode.

Preferably, all integrated into one piece has the angle of enhancement all around on the cylinder cap surface, all integrated into one piece has the strengthening rib around the cylinder barrel surface.

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

1. the utility model discloses a sliding sleeve, small-size supercharged air pump, first three way connection, the cooperation of second three way connection and gas-supply pipe, can carry out the quick inflation to two small-size gasbags, can provide sufficient drive power to the card post, through the small-size gasbag, the cooperation of card post and draw-in groove, can carry out quick pneumatic locking fastening to the piston rod that extends to behind the suitable position, avoid the piston rod displacement to appear, cause electrical equipment to break down and damage, also shorten the auto-lock time of piston rod simultaneously.

2. The utility model has the advantages that the clamp columns and the clamp grooves are distributed along the center of the piston rod in a vertical array structure, the two sides of the piston rod can be synchronously inserted and locked, the stress uniformity of the surface locking of the piston rod is improved, the small air bag can be subjected to pressure relief and deflation treatment through the pressure relief pipe and the small electric pressure relief valve, so that the aim of contracting and resetting the clamp columns is fulfilled, the resetting speed of the small air bag is accelerated through the reset spring, the resetting time of the small air bag is shortened, the cylinder cover and the guide sleeve can be stably fixed through the installation block, the long bolt, the fixed block and the fastening nut, the stress displacement between the cylinder cover and the guide sleeve is avoided, a gap is generated between the cylinder cover and the cylinder barrel, the integral sealing effect between the cylinder cover and the guide sleeve is enhanced, the four corners of the cylinder cover can be reinforced and protected through the reinforcing ribs, the material strength of the cylinder barrel is enhanced through the reinforcing ribs, the integral compression resistance of the cylinder barrel is improved.

Drawings

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

FIG. 2 is a side view of the structure of the present invention;

fig. 3 is a partial sectional view of the structure of the guide sleeve and the piston rod of the present invention;

FIG. 4 is an enlarged view of a portion A of the structure of FIG. 3 according to the present invention;

fig. 5 is a side sectional view of the fixing frame of the present invention.

In the figure: 1. a cylinder barrel; 2. a cylinder cover; 3. a guide sleeve; 4. a control box; 5. protecting the line pipe; 6. a cylinder head; 7. a piston rod; 8. a fixed mount; 9. a fixing plate; 10. a locking mechanism; 101. a sliding sleeve; 102. a small booster pump; 103. a first three-way joint; 104. a second three-way joint; 105. a gas delivery pipe; 106. a small-sized air bag; 107. clamping the column; 108. a card slot; 11. a small electric pressure relief valve; 12. a return spring; 13. a long bolt.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: the servo self-locking boosting hydraulic oil cylinder comprises a cylinder barrel 1, a cylinder cover 2 is bolted at the top of the cylinder barrel 1, a guide sleeve 3 is bolted at the bottom of the cylinder barrel 1, a control box 4 is bolted at the top on the right side of the cylinder cover 2, a protection line pipe 5 is communicated with the right side of the control box 4, one end of the protection line pipe 5, which is far away from the control box 4, is communicated with the right side of the guide sleeve 3, a cylinder head 6 is welded at the top of the cylinder cover 2, a piston rod 7 is slidably connected with the inner cavity of the cylinder barrel 1, a fixing frame 8 is bolted at the front of the guide sleeve 3, fixing plates 9 are bolted at two sides of the inner cavity of the guide sleeve 3, a locking mechanism 10 is arranged in the inner cavity of the fixing frame 8, two small air bags 106 can be rapidly inflated and expanded through the matching of a sliding sleeve 101, a small air pressurization pump 102, a first three-way joint 103, a second three-way joint 104 and an air pipe 105, sufficient driving power can be provided for the clamp column 107, and the small air bags 106 can be inflated and the small air bags 106, The clamping column 107 and the clamping groove 108 are matched, so that the piston rod 7 extending to a proper position can be quickly and pneumatically locked and fastened, the piston rod 7 is prevented from being displaced, electric equipment is prevented from being damaged due to failure, and the self-locking time of the piston rod 7 is shortened;

the locking mechanism 10 comprises a sliding sleeve 101, a small-sized supercharged air pump 102, a first three-way joint 103, a second three-way joint 104, an air pipe 105, a small-sized air bag 106, a clamping column 107 and a clamping groove 108, the sliding sleeve 101 is sequentially embedded in the inner cavity of the fixing plate 9 from top to bottom, the small-sized supercharged air pump 102 is bolted on the back surface of the inner cavity of the fixing frame 8, an air outlet of the small-sized supercharged air pump 102 is communicated with the first three-way joint 103, two ends of the first three-way joint 103, far away from the small-sized supercharged air pump 102, are communicated with the second three-way joint 104 through a pipeline, two ends of the second three-way joint 104, far away from the first three-way joint 103, are communicated with the air pipe 105, the two small-sized air bags 106 can be rapidly inflated and expanded, sufficient driving power can be provided for the clamping column 107, one end of the air pipe 105, far away from the second three-way joint 104, penetrates through the guide sleeve 3 and is communicated with the small-sized air bag 106, the outer side of the small-sized air bag 106 is bolted with the inner wall of the guide sleeve 3, the inboard of small-size gasbag 106 has been followed to having bolted connection down in proper order and has been blocked post 107, and the draw-in groove 108 that uses with the cooperation of blocking post 107 has been seted up in proper order down to the both sides of piston rod 7 from last, can carry out quick pneumatic locking fastening to the piston rod 7 that extends to behind the suitable position, avoids piston rod 7 displacement to appear, causes electrical equipment to break down and damages, also shortens the auto-lock time of piston rod 7 simultaneously.

The shape of card post 107 and draw-in groove 108 all sets up to cylindrical, and card post 107 and draw-in groove 108 are vertical array column structure along the center department of piston rod 7 and distribute, and the quantity of draw-in groove 108 is the integral multiple of card post 107 quantity three, can insert in step to the both sides of piston rod 7 and establish the locking, improves the atress degree of consistency of piston rod 7 surface locking.

The front center of the small air bag 106 is communicated with a pressure relief pipe, the front end of the pressure relief pipe is communicated with the small electric pressure relief valve 11, pressure relief and air release processing can be carried out on the small air bag 106, and therefore the purpose of contracting and resetting the clamping column 107 is achieved.

The two opposite sides of the small air bag 106 are bolted with the return springs 12, and one side of the return spring 12 far away from the small air bag 106 is bolted with the outer side of the fixing plate 9, so that the return rate of the small air bag 106 is accelerated, and the return time of the small air bag 106 is shortened.

All bolted connections all around of cylinder cap 2 have the installation piece, and the inner chamber of installation piece is inserted and is equipped with elongated bolt 13, the fixed block that uses with elongated bolt 13 cooperation is all bolted connections all around of uide bushing 3, the bottom threaded connection of elongated bolt 13 has fastening nut, can stabilize fixedly between cylinder cap 2 and the uide bushing 3, avoid the atress displacement to appear between cylinder cap 2 and the uide bushing 3, and produce the gap between the cylinder 1, reinforcing cylinder 1, the whole sealed effect between cylinder cap 2 and the uide bushing 3.

All integrated into one piece all around on 2 surfaces of cylinder cap has the angle of enhancement, and all integrated into one piece all around on 1 surface of cylinder barrel has the strengthening rib, can strengthen the protection to 2 four corners of cylinder cap, through the strengthening rib, strengthens the material strength of 1 self of cylinder barrel, improves the whole compressive property of cylinder barrel 1.

The working principle is as follows: during operation, after the piston rod 7 in the cylinder 1 extends to a preset length through the guide sleeve 3, when self-locking is needed, a user presses an opening button of the control box 4, the control box 4 controls the small-sized supercharged air pump 102 to be opened through a lead in the protective conduit 5, the small-sized supercharged air pump 102 is divided into two paths by the first three-way joint 103 to uniformly convey high-pressure air into the two second three-way joints 104, the high-pressure air uniformly enters the two small-sized air bags 106 through the two groups of gas conveying pipes 105 and synchronously expands the two small-sized air bags 106, the size is rapidly increased along with the expansion of the two small-sized air bags 106, the sliding sleeve 101 provides stable sliding support matching, so that the two small-sized air bags 106 drive the clamping columns 107 to be rapidly inserted into the corresponding clamping grooves 108, the clamping columns 107 lock and fasten the piston rod 7, the purpose of rapid follow-up self-locking is achieved, when the piston rod 7 needs to be loosened and moved, then the user presses control box 4 and closes the button, and small-size electronic relief valve 11 releases the high-pressure gas in two small-size gasbags 106, then reset spring 12 assists two small-size gasbags 106 to reset, then two small-size gasbags 106 reset to original volume rapidly, then in two small-size gasbags 106 that the volume dwindles drive card post 107 break away from draw-in groove 108, then piston rod 7 can freely telescopic activity.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Follow-up self-locking reinforcement hydraulic cylinder includes cylinder (1), its characterized in that: the cylinder cover is bolted at the top of cylinder (1) and is had cylinder cap (2), uide bushing (3) have been bolted to the bottom of cylinder (1), control box (4) have been bolted at the top on cylinder cap (2) right side, the right side intercommunication of control box (4) bottom has protection spool (5), the right side intercommunication of one end and uide bushing (3) of control box (4) is kept away from in protection spool (5), the top welding of cylinder cap (2) has cylinder head (6), the inner chamber sliding connection of cylinder (1) has piston rod (7), the front of uide bushing (3) is bolted and is had mount (8), the both sides of uide bushing (3) inner chamber are all bolted and are had fixed plate (9), the inner chamber of mount (8) is provided with locking mechanism (10).

2. A servo self-locking force-increasing hydraulic cylinder as defined in claim 1 wherein: the locking mechanism (10) comprises a sliding sleeve (101), a small-sized supercharged air pump (102), a first three-way joint (103), a second three-way joint (104), air pipes (105), a small-sized air bag (106), a clamping column (107) and a clamping groove (108), the sliding sleeve (101) is sequentially embedded in the inner cavity of the fixing plate (9) from top to bottom, the small-sized supercharged air pump (102) is connected to the back of the inner cavity of the fixing frame (8) in a bolted mode, the first three-way joint (103) is communicated with an air outlet of the small-sized supercharged air pump (102), the second three-way joint (104) is communicated with two ends of the first three-way joint (103) far away from the first three-way joint (103) through pipelines, the air pipes (105) are communicated with two ends of the second three-way joint (104), one end of the air pipes (105) far away from the second three-way joint (104) penetrates through the guide sleeve (3) and is communicated with the small-sized air bag (106), the outside of small-size gasbag (106) and the inner wall bolt of uide bushing (3), the inboard of small-size gasbag (106) has card post (107) from last to bolt down in proper order, draw-in groove (108) that use with card post (107) cooperation have been seted up in proper order from last to down in the both sides of piston rod (7).

3. A servo self-locking energizing hydraulic cylinder according to claim 2 wherein: the shape of card post (107) and draw-in groove (108) all sets up to the cylindricality, card post (107) and draw-in groove (108) are vertical array column structure along the center department of piston rod (7) and distribute, the quantity of draw-in groove (108) is the integral multiple of card post (107) quantity three.

4. A servo self-locking energizing hydraulic cylinder according to claim 2 wherein: the center of the front surface of the small air bag (106) is communicated with a pressure relief pipe, and the front end of the pressure relief pipe is communicated with a small electric pressure relief valve (11).

5. A servo self-locking energizing hydraulic cylinder according to claim 2 wherein: and two opposite sides of the small air bag (106) are bolted with return springs (12), and one side of each return spring (12) far away from the small air bag (106) is bolted with the outer side of the fixing plate (9).

6. A servo self-locking force-increasing hydraulic cylinder as defined in claim 1 wherein: all bolted connections have the installation piece all around cylinder cap (2), and the inner chamber of installation piece is inserted and is equipped with elongated bolt (13), all bolted connections have the fixed block of using with elongated bolt (13) cooperation around uide bushing (3), the bottom threaded connection of elongated bolt (13) has fastening nut.

7. A servo self-locking force-increasing hydraulic cylinder as defined in claim 1 wherein: all integrated into one piece all around on cylinder cap (2) surface has the angle of enhancement, all integrated into one piece all around on cylinder (1) surface has the strengthening rib.