CN2402660Y

CN2402660Y - Intermittent lifter

Info

Publication number: CN2402660Y
Application number: CN 99243743
Authority: CN
Inventors: 张国振
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-24
Filing date: 1999-08-24
Publication date: 2000-10-25
Anticipated expiration: 2009-08-24

Abstract

The utility model relates to a novel hydraulic lifting tool, which is an intermittent lifter. The utility model is composed of a hollow hydraulic oil cylinder, a clamping device, a soleplate, a return spring, etc., wherein, the outer cylinders of the hollow hydraulic oil cylinder and the inner cylinders of the hollow hydraulic oil are respectively positioned on the outer and the inner parts of a piston head, the outer and the inner parts of a piston rod, and the outer and the inner parts of a top head, and are simultaneously connected with a base; the clamping device comprises a lifting clamping head and an intermittent clamping head, and the lifting clamping head is arranged above the hollow hydraulic oil cylinder and is connected with a plug by an upper fixing plate; the intermittent clamping head is arranged on the soleplate below the hollow hydraulic oil cylinder; a clamping jaw of the clamping device makes a claw head naturally positioned in a forced clamping state through a bolt, a clamping spring, and an adjusting cover. The utility model has the advantages that a hydraulic technique and a clamping technique are integrated; tasks of lifting and hoisting, which can not be completed by large-scale hoisting equipment, can be accomplished. Simultaneously, the utility model has the advantages of limitless stretching operation for lifting height, small size, light weight, stable lifting process, reliable work, convenient use, low price, etc.

Description

The batch (-type) lifter

The utility model relates to a kind of weight-lifting equipment, refers in particular to a kind of new type hydraulic lifting gear-batch (-type) lifter.

The hydraulic lifting instrument is that the lifting that is used for heavy wares (as Generator Set) or large scale prefabricated member (as high-order water tower) lifts indispensable instrument, also can be used for promoting sliding formwork etc. when the cement concrete cast-in-site.Present employed hydraulic lifting instrument is not all installed chuck, and it works the hydraulic lifting that is upgraded to stroke, make the article that hoisted particularly the lifting altitude of extra heavy article be restricted.

The purpose of this utility model provides a kind of instrument that simply hoists, hoist and heavy arbitrarily article can be brought up to arbitrary height by batch (-type), to be applicable to extra heavy article (load-carrying ability that exceeds large lifting equipment) or a high position (the lifting height that exceeds weight-lifting equipment) are hoisted, and operation under the particular surroundings.

For achieving the above object, the batch (-type) lifter that the utility model provides is made up of hollow hydraulic ram, fixing device, base plate and retracing spring etc., hollow hydraulic ram is made up of outer shell, inner casing, piston rod, piston head, top and base, outer shell and inner casing lay respectively at the outside and inner of piston head, piston rod and top, and are connected with base simultaneously; Fixing device comprises the lifting chuck and the chuck that rests, and promotes the top that chuck is installed in oil cylinder, is connected with the top by upper mounted plate; The chuck that rests is installed on the base plate of oil cylinder below; Fixing device is made up of bolt, spring perch, fastening spring, screw, adjustable cap, cushion rubber, jaw and main body, bolt is installed on the adjustable cap, spring perch and fastening spring are set on the bolt, and jaw makes the pawl head be in the pressure clamped condition naturally by bolt, fastening spring, adjustable cap.

Because the utility model adopts hollow hydraulic ram and double fastener locking structure, oil cylinder hoists piston rod assembly by the Hydraulic Pump fuel feeding during work, and piston rod assembly resets under the effect of retracing spring during emptying.Along with the hoisting and reset of piston rod assembly, promote chuck and rest clamping and releasing successively of chuck and automatically switch, thereby realize the purpose that intermittently hoists.

Advantage of the present utility model is its liquid collecting pressure technology and tensioning technique, lifting altitude is limitless stretching, can finish that large lifting equipment can't finish hoist, the lifting task, have simultaneously volume little, in light weight, hoist steadily, reliable operation, easy to use, lower-price characteristic, have the incomparable preceence of other weight-lifting equipments.

Below in conjunction with drawings and Examples structure of the present utility model is described further.

Accompanying drawing is the elevation cross-sectional view of the utility model embodiment.

Among the figure, the utility model by hollow hydraulic ram, promote chuck, rest chuck, base plate 14 and retracing spring 11 5 parts and form, be piston rod assembly between the outer shell 27 of hollow hydraulic ram and the inner casing 29, piston rod assembly comprises piston rod 28, piston head 26 and comes directly towards 33, the lower end of piston rod 28 is a piston head 26, the upper end is top 33, and outer shell 27, inner casing 29 and piston head 26 all are connected with cylinder pedestal 20.

Promote the top that chuck is installed in oil cylinder, be fixed on the upper mounted plate 35, place the upper end of piston rod top 33 with screw 36; The chuck that rests is installed in the heavy ring 18 of oil cylinder below, and is separately fixed on the base plate 14 with oil cylinder; Promote chuck and rest chuck general designation fixing device, its structure is identical, form by bolt 1, spring perch 2, fastening spring 3, screw 4, adjustable cap 5, cushion rubber 6, jaw 7 and main body 8, bolt 1 is installed on the adjustable cap 5, spring perch 2 and fastening spring 3 are set on the bolt 1, jaw 7 is fixed on the adjustable cap by screw 4, and jaw 7 makes the pawl head be in the pressure clamped condition naturally by bolt 1, fastening spring 3, adjustable cap 5.The chuck of present embodiment adopts conical clamping structure.

The outer shell 27 of present embodiment adopts welded structure with being connected of base 20, and inner casing 29 adopts axle-steel silk ring washer 19 to constitute with base 20 and flexibly connects, and seals with O RunddichtringO 21, and oil cylinder is suitable for reading fixes an orienting sleeve 30 with the hole with steel wire ring washer 32.

Before the work, should prepare and lift with steel rope (reinforcing bar or steel pipe in the chuck promoting chuck and rest ... the jaw 7 that down together) specification is identical, and make piston rod assembly be in extreme lower position.Then the utility model is placed on meeting on the bearing bracket that promotes requirement of having made, uses bolt in case of necessity.One end of steel rope is hinged on the weight of preparing lifting, and the other end penetrates the utility model from bottom to top.

Hollow hydraulic ram is by the Hydraulic Pump fuel feeding, and Hydraulic Pump can be selected the electric hydaulic station as required or manually annotate the plug pump.When Hydraulic Pump during to the oil cylinder fuel feeding, piston rod assembly (26,28,33 etc.) will drive and promote chuck and slowly rise, and meanwhile promotes chuck and can clamp steel rope automatically, and drive the weight upward movement, will be in release position and rest chuck.This process is referred to as lifting process.When piston rod assembly rises to end position, open fuel-return valve, make the oil cylinder unloading, promote chuck and under the effect of retracing spring 11, begin to descend with piston rod assembly.At this moment, the chuck that rests will clamp automatically, promote chuck and then enter release position, and the marrow piston rod assembly drop to extreme lower position together.This process is referred to as the process of resting.

This shows that working process of the present utility model is alternately occurred finishing by the lifting process and the process of resting.Lifting process rises weight and produces displacement; And the process of resting makes the height of weight hover after promoting, waits for after piston rod assembly resets beginning next lifting process again.The lifting process and the replacing of process of resting are repeated, and then weight can be brought up to arbitrary height, and the object that can promote any weight that is used in combination of the present utility model.The utility model also can side direction use, and is applied to fields such as barge, lateral traction.

Claims

1, a kind of batch (-type) lifter is made up of hollow hydraulic ram, fixing device, base plate (14) and retracing spring (11) etc., it is characterized in that:

A. described hollow hydraulic ram is made up of outer shell (27), inner casing (29), piston rod (28), piston head (20), top (33) and base (20), outer shell (27) and inner casing (29) lay respectively at the outside and inner of piston head (26), piston rod (28) and top (33), and are connected with base (20) simultaneously;

B. described fixing device comprises the lifting chuck and the chuck that rests, and promotes the top that chuck is installed in hollow hydraulic ram, is connected with top (33) by upper mounted plate (35); The chuck that rests is installed on the base plate (14) of hollow hydraulic ram below; Fixing device is made up of bolt (1), spring perch (2), fastening spring (3), screw (4), adjustable cap (5), cushion rubber (6), jaw (7) and main body (8), bolt (1) is installed on the adjustable cap (5), spring perch (2) and fastening spring (3) are set on the bolt (1), and jaw (7) makes the pawl head be in the pressure clamped condition naturally by bolt (1), fastening spring (3), adjustable cap (5).

2, batch (-type) lifter according to claim 1, it is characterized in that: outer shell (27) adopts welded structure with being connected of base (20), inner casing (29) adopts axle-steel silk ring washer (19) to constitute with base (20) and flexibly connects, and with O RunddichtringO (21) sealing, oil cylinder is suitable for reading fixes an orienting sleeve (30) with the hole with steel wire ring washer (32).

3, batch (-type) lifter according to claim 1, it is characterized in that: the chuck of described fixing device adopts conical clamping structure.