CN202139574U

CN202139574U - Oil cylinder stiffening device for double-cylinder hanging hydraulic press

Info

Publication number: CN202139574U
Application number: CN 201120249517
Authority: CN
Inventors: 王兴恩; 固王勇; 陈寅其
Original assignee: Hydrochina Guiyang Engineering Corp
Current assignee: PowerChina Guiyang Engineering Corp Ltd
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2012-02-08
Anticipated expiration: 2021-07-15

Abstract

The utility model discloses an oil cylinder stiffening device for a double-cylinder hanging hydraulic press. The oil cylinder stiffening device for the double-cylinder hanging hydraulic press comprises an auxiliary bracket supported below the oil cylinders (1) of the two hanging hydraulic press, wherein the auxiliary bracket is connected with a main bracket through bolts; the main bracket is welded with a pre-buried steel plate (2) on a lock wall; and the contact surfaces of the auxiliary bracket and the oil cylinders are high-strength self-lubricating composite material layers. The oil cylinder stiffening device can effectively control the problem that the deflection of a piston rod is caused by the dead weight of the oil cylinders when the oil cylinders of the hydraulic press are hung obliquely. The fatigue effect of the piston rod can be generated due to the dead weight of the oil cylinders for a long time, and the deformed piston rod is not easy to restore, so that the service life of the piston rod is shortened; and stiffening brackets are arranged symmetrically at the lower parts of the oil cylinders and above the flood discharge water surface line, so that the deflection of the piston rod is reduced, and the service life of the piston rod is prolonged; and the stiffening device can solve the overlarge deflection of the piston rod caused by the dead weight of the oil cylinders of the hydraulic press.

Description

The anti-device of scratching of a kind of twin-tub suspension type hydraulic press oil cylinder

Technical field

the utility model relates to a kind of twin-tub suspension type hydraulic press oil cylinder to be prevented scratching device, belongs to water conservancy Segment gate control technology field.

Background technology

twin-tub suspension type hydraulic press is more a kind of headstock gear pattern of the current use of Hydraulic and Hydro-Power Engineering; Be mainly used in the Segment gate that opens and closes outlet structure escape works; Oil cylinder adopts the superconducting tilting suspension formula to arrange; The oil cylinder upper end is hinged with the cylinder support that is fixed on the lock wall, and the oil cylinder lower end is hinged through piston rod and gate lifting eye.Along with science and technology development, the port size and the design head of Segment gate are increasing, and increasingly high to the capacity and the stroke requirement of hydraulic press, the twin-tub suspension type hydraulic press capacity that at present drops into engineering operation has reached 2 * 5000kN, stroke 14m.Hydraulic press capacity and stroke bring greatly hydraulic press oil cylinder deadweight heavier cause the piston rod amount of deflection excessive be a problem that can not be ignored.

Summary of the invention

The purpose of the utility model is, provides a kind of twin-tub suspension type hydraulic press oil cylinder the anti-device of scratching.Can effectively reduce piston rod because oil cylinder deadweight effect forms downward amount of deflection, to overcome the deficiency of prior art.

The technical scheme of the utility model: the anti-device of scratching of a kind of twin-tub suspension type hydraulic press oil cylinder of the utility model; Comprise the secondary carriage of holder below two suspension type hydraulic press oil cylinders; Secondary carriage is connected through bolt with master carrier to be fixed, and the pre-embedded steel slab welding on master carrier and the lock wall is fixing.

above-mentioned secondary carriage comprises Tuo Wa, and holder watt warp one group of sunk screw is connected with screwed hole on the arc supporting steel plate, and the arc supporting steel plate welds through one group of pair carriage web and secondary tray plate, and secondary tray plate is provided with one group of fixed bolt hole.

above-mentioned holder watt is 90 ° of arc surfaces with the contact surface of oil cylinder, and the thickness of holder watt is 10～30mm, and holder watt is provided with one group of stepped hole, and the step degree of depth of its stepped hole is greater than the head of screw height of sunk screw.

above-mentioned holder watt contacts the arc surface radius greater than waiting oil cylinder radius 0.5～2mm with oil cylinder.

above-mentioned holder watt is the self-lubricating composite goods.

above-mentioned master carrier comprises the top flange that is connected with secondary carriage, and the top flange is provided with one group of connecting bolt hole, and the connecting bolt hole is connected with one group of set bolt aperture bolt on the secondary tray plate; One group of master carrier web in top flange and bottom flange welding; One end of top flange, master carrier web and bottom flange and the welding of master carrier base plate, the pre-embedded steel slab welding on master carrier base plate and the lock wall.

above-mentioned master carrier is obliquely installed, and the inclination angle of angle of slope during with the oil cylinder range is corresponding.

compared with prior art, when the utility model can effectively be controlled the hydraulic press oil cylinder and is in the superconducting tilting suspension state, because oil cylinder deadweight effect causes piston rod to produce the problem of amount of deflection.Oil cylinder deadweight long term can make piston rod produce fatigue effect; Distortion is difficult for recovering; Reduced the application life of piston rod; Being symmetrical set in the above position of oil cylinder bottom flood discharge water surface curve and anti-ly scratching carriage, have amount of deflection that reduces piston rod and the effect that improves its application life, is a kind ofly to solve the deadweight of hydraulic press oil cylinder and cause the easy device that the piston rod amount of deflection is excessive.

Description of drawings

Fig. 1 is the decomposing schematic representation of the utility model;

Fig. 2 is the assembling sketch map of the utility model;

Fig. 3 is the utility model application state sketch map.

Being labeled as in accompanying drawing: 1-oil cylinder, 2-pre-embedded steel slab, 3-holder watt, 4-sunk screw, 5-arc supporting steel plate, the secondary carriage web of 6-, the secondary tray plate of 7-, 8-fixed bolt hole, 9-stepped hole, 10-top flange, 11-connecting bolt hole, 12-bolt, 13-master carrier web, 14-bottom flange, 15-master carrier base plate, 16-screwed hole.

The specific embodiment

are done further to specify to the utility model below in conjunction with accompanying drawing and embodiment.But not as any restriction foundation to the utility model.

embodiment.A kind of twin-tub suspension type hydraulic press oil cylinder is anti-scratches device, as shown in Figure 1, comprises the secondary carriage of holder below two suspension type hydraulic press oil cylinders 1, and secondary carriage is connected with the master carrier bolt, pre-embedded steel slab 2 welding on master carrier and the lock wall.Said secondary carriage comprises holder watts 3, and holder watts 3 is connected with screwed hole 16 on the arc supporting steel plate 5 through one group of fastening sunk screw 4, and arc supporting steel plate 5 welds through one group of secondary carriage web 6 and secondary tray plate 7, and secondary tray plate 7 is provided with one group of fixed bolt hole 8.Said holder watts 3 is 90 with the contact surface of oil cylinder 1Arc surface, the thickness of holder watts 3 is 10～30mm, and holder watts 3 is provided with one group of stepped hole 9, and the step degree of depth of stepped hole 9 is greater than the head of screw height of fastening sunk screw 4.Holder watts 3 contacts the arc surface radius greater than 0.5～2mm such as radius such as oil cylinder such as grade with oil cylinder 1.Holder watts 3 is the self-lubricating composite goods.Said master carrier comprises the top flange 10 that is connected with secondary carriage, and top flange 10 is provided with one group of connecting bolt hole 11, and connecting bolt hole 11 is connected through bolt 12 with one group of fixed bolt hole 8 on the secondary tray plate 7; Top flange 10 is through one group of master carrier web 13 and bottom flange 14 welding; One end of top flange 10, master carrier web 13 and

bottom flange

14 and 15 welding of master carrier base plate, pre-embedded steel slab 2 welding on master carrier base plate 15 and the lock wall.Master carrier is obliquely installed, and the inclination angle of angle of slope during with the oil cylinder range is corresponding.

The practical implementation process and the principle of the utility model

are as shown in Figure 1; Visible by Fig. 1; Have two suspension type hydraulic press oil cylinders 1 to produce amount of deflection in order to prevent because of oil cylinder deadweight effect causes piston rod among Fig. 1, below two suspension type hydraulic press oil cylinders, being provided with an anti-device of scratching that is made up of secondary carriage and master carrier respectively (in order to see internal construction clearly, is cut away view among the figure; The anti-device of scratching so only drawn below one of them oil cylinder, another is symmetrical set with it).The anti-relative lock centerline hole of the device symmetric arrangement of scratching of the utility model, the utility model has master carrier and secondary carriage as shown in Figures 2 and 3, and the contact surface of secondary carriage and oil cylinder 1 is 90Circular arc, secondary carriage and master carrier form integral bracket after being connected firmly through bolt 12, pre-embedded steel slab 2 firm welding on master carrier base plate 15 and the side lock wall.The characteristics of the utility model are: 1. at the sluicing runner fan Segment gate is set; Segment gate is by the twin-tub suspension type hydraulic hoist operation that is arranged on gate pier; Anti-scratch device and be arranged in the position that is not dashed more than the flood discharge water surface curve by water, anti-scratch device when being in closed condition with Segment gate the horizontal relatively inclination angle of hydraulic press oil cylinder identical; 2. master carrier is the welding box-shaped beam section of real abdomen formula, base plate be with side lock wall on the rectangular steel plates that contacts of pre-embedded steel slab 2, the pre-embedded steel slab 2 on master carrier base plate 15 and the side lock wall is through all solid weldings calmly.3. secondary carriage and oil cylinder contact surface are to have 90 of high strength self-lubricating propertyThe holder that the circular arc composite material is processed watts 3, holder watt 3 thickness are 10～30mm, are fixed on corresponding with it 90 through fastening sunk screw 4On the arc supporting steel plate 5, this arc supporting steel plate 5 and two web that vertically is provided with 6 welding backs form secondary carriage with base plate 7 welding, and secondary carriage and master carrier are connected to form integral body through bolt; 4. secondary carriage and oil cylinder contact surface arc radius are greater than hydraulic jack radius 0.5～2mm; 5. fastening sunk screw 4 tops do not allow to expose the contact surface of secondary carriage and oil cylinder under any operating mode.

During practical implementation; Confirm master carrier length according to the oil cylinder center to lock wall distance and cylinder diameter; (the last hanging point of the oil cylinder 1 among Fig. 3 is to be fixed on the gate pier metope) as shown in Figures 2 and 3; Form a box-type section beam by top flange 10, bottom flange 14 and master carrier web 13 through welding at master carrier, this beam and base plate 15 form master carrier through welding; Confirm the radius and the thickness of strnegth self-lubricating composite material for high layer and arc supporting steel plate according to cylinder diameter, by 90 The circular arc setting-out is made, and the arc supporting steel plate forms a steelframe through two blocks of vertical webs and base plate, and strnegth self-lubricating composite material for high layer and arc supporting steel plate form secondary carriage through the fixing back of fastening sunk screw.Join 4 bolts hole of brill in master carrier top flange and secondary tray plate correct position symmetry, be connected to form the anti-carriage of scratching through bolt.The Segment gate of one fan by the operation of twin-tub suspension type hydraulic hoist is set between the lock wall of both sides; When oil cylinder is in closed condition at the arc door (range of oil cylinder); The inclination angle of oil cylinder axis is exactly the mounted angle of the utility model, touches with oil cylinder serious connecting airtight to guarantee the anti-device of scratching.The utility model is installed in more than the flood discharge water surface curve, avoids preventing that scratching device is not arrived by water logging.

Claims

1. a twin-tub suspension type hydraulic press oil cylinder prevents scratching device; It is characterized in that: comprise the secondary carriage of holder below two suspension type hydraulic press oil cylinders (1); Secondary carriage is connected through bolt with master carrier to be fixed, and pre-embedded steel slab (2) welding on master carrier and the lock wall is fixing.

2. according to the anti-device of scratching of the said twin-tub suspension type of claim 1 hydraulic press oil cylinder; It is characterized in that: said secondary carriage comprises Tuo Wa (3); Tuo Wa (3) is connected with screwed hole (16) on the arc supporting steel plate (5) through one group of sunk screw (4); Arc supporting steel plate (5) is through one group of secondary carriage web (6) and secondary tray plate (7) welding, and secondary tray plate (7) is provided with one group of fixed bolt hole (8).

3. according to the anti-device of scratching of the said twin-tub suspension type of claim 2 hydraulic press oil cylinder; It is characterized in that: said holder watt (3) is 90 ° of arc surfaces with the contact surface of oil cylinder (1); The thickness of Tuo Wa (3) is 10～30mm; Tuo Wa (3) is provided with one group of stepped hole (9), and the step degree of depth of its stepped hole (9) is greater than the head of screw height of sunk screw (4).

4. scratch device according to the said twin-tub suspension type of claim 2 hydraulic press oil cylinder is anti-, it is characterized in that: said holder watt (3) contacts the arc surface radius greater than waiting oil cylinder radius 0.5～2mm with oil cylinder (1).

5. prevent scratching device according to claim 2,3 or 4 said twin-tub suspension type hydraulic press oil cylinders, it is characterized in that: said holder watt (3) is the self-lubricating composite goods.

6. according to the anti-device of scratching of the said twin-tub suspension type of claim 1 hydraulic press oil cylinder; It is characterized in that: said master carrier comprises the top flange (10) that is connected with secondary carriage; Top flange (10) is provided with one group of connecting bolt hole (11), and connecting bolt hole (11) are connected through bolt (12) with one group of fixed bolt hole (8) on the secondary tray plate (7); Top flange (10) is through one group of master carrier web (13) and bottom flange (14) welding; Pre-embedded steel slab (2) welding in one end of top flange (10), master carrier web (13) and bottom flange (14) and master carrier base plate (15) welding, master carrier base plate (15) and lock wall.

7. scratch device according to claim 1 or 6 said twin-tub suspension type hydraulic press oil cylinders are anti-, it is characterized in that: said master carrier is obliquely installed, and the inclination angle of angle of slope during with the oil cylinder range is corresponding.