CN202322202U

CN202322202U - Anti-fall off mechanism for chain of lifting machine

Info

Publication number: CN202322202U
Application number: CN2011204483065U
Authority: CN
Inventors: 陈杰
Original assignee: Changshu Tongrun Auto Accessory Co Ltd
Current assignee: Changshu Tongrun Auto Accessory Co Ltd
Priority date: 2011-11-14
Filing date: 2011-11-14
Publication date: 2012-07-11
Anticipated expiration: 2021-11-14

Abstract

An anti-fall off mechanism for a chain of a lifting machine belongs to the technical field of lifting devices. The lifting machine comprises an upright post, a bottom plate, an oil cylinder, sliding tables, a grooved wheel seat, a grooved wheel and the chain, wherein an accommodating chamber is formed in the middle of the upright post; the bottom plate is fixed at the bottom of the upright post; the oil cylinder is arranged in the accommodating chamber of the upright post; the sliding tables are arranged on the upright post in a matched manner; the grooved wheel seat is fixed at the top of the piston rod of the oil cylinder; the grooved wheel is fixed on the grooved wheel seat by a check ring through a pin shaft and a shaft; the chain is matched with the grooved wheel; one end of the chain is connected with the bottom plate; and the other end of the chain is connected with the sliding table. The lifting machine is characterized by further comprising the anti-fall off mechanism for the chain of the lifting machine, wherein the anti-fall off mechanism comprises a U-shaped plate mounted on the grooved wheel seat; the U-shaped plate is coated on two sides of the grooved wheel in the width direction; and the upper end of the chain is covered with the U-shaped plate. The anti-fall off mechanism has the advantage that the chain can be effectively prevented from moving out of the grooved wheel, so as to ensure synchronous displacement of the two sliding tables, as well as safe and reliable use.

Description

Lifting chain bar is used anti-shedding mechanism

Technical field

The utility model belongs to the lifting device technical field, is specifically related to a kind of lifting chain bar and uses anti-shedding mechanism

Background technology

existing vehicle lift structure such as Fig. 1, shown in Figure 2; Have in the middle of mainly comprising cavity volume 10 column 1, be fixed on column 1 bottom base plate 5, be located at oil cylinder 2 in the cavity volume 10 of column 1, up or down be provided in slide unit 3 on the column 1, be fixed on the piston rod part of oil cylinder 2 sheave seat 9, be fixed on sheave 6 on the sheave seat 9, be used for the chain 4 that matches with sheave 6 through bearing pin 7 and shaft block ring 8; One end of chain 4 is connected with base plate 5; The other end of chain 4 is connected with slide unit 3, and described slide unit 3 leans on oil cylinder 2 and chain 4 to realize with respect to moving up and down between the column 1.When the lifting machine is worked, start power supply, in the hydraulic oil pressure in the pumping plant to oil cylinder 2, make oil cylinder 2 interior piston rods upwards promote, drive chain 4 by piston rod, and then drive and chain 4 upwards liftings of bonded assembly slide units 3.In the said structure, because chain 4 is to expose outside fully, operating personal might clip to finger, clothes etc. in actual mechanical process, thereby the person is caused certain injury; In addition; When a side chain bar is crossed pine; Chain just might be run out of from sheave 6, makes the slide unit of the corresponding side of lifting machine no longer promote, and causes two slide units of lifting machine can not synchronous shift; The rollover of so easy formation maintenance vehicle causes unnecessary damages to operating personal and vehicle and lifting machine.

To the existing above-mentioned shortcoming of existing lifting machine structure, the applicant has carried out good try, has found the way that solves the problems of the technologies described above, and the technical scheme that will introduce below produces under this background

Summary of the invention

The purpose of the utility model be to provide a kind of can effectively prevent chain from sheave, break away from, guarantee two slide units can synchronous shift, safe and reliable lifting chain bars use anti-shedding mechanism.

The purpose of the utility model reaches like this; A kind of lifting chain bar is used anti-shedding mechanism; Described lifting machine have in the middle of comprising cavity volume column, be fixed on the column bottom base plate, be located at oil cylinder in the cavity volume of column, up or down be provided in slide unit on the column, be fixed on the piston rod part of oil cylinder the sheave seat, be fixed on sheave on the sheave seat, be used for the chain that matches with sheave through bearing pin and shaft block ring; One end of chain is connected with base plate; The other end of chain is connected with slide unit, is characterized in: described lifting machine comprises that also a chain uses anti-shedding mechanism, and this chain comprises that with anti-shedding mechanism one is installed in the U-shaped plate on the sheave seat; Described U-shaped plate is coated on the both sides of said sheave Width, and covers the upper end of chain.

are in a specific embodiment of the utility model; Offer pin shaft hole respectively on two flangings of described U-shaped plate; The position of pair of pin axis hole is corresponding, and the U-shaped plate is located in the two ends of bearing pin through this to pin shaft hole, and is fixed by described shaft block ring in the outside.

The technical scheme that the utility model provides is owing to set up the U-shaped plate on the sheave seat; This U-shaped plate is coated on the both sides of said sheave Width and covers the upper end of chain; Through the U-shaped plate; Can prevent described chain from from sheave, running out of and break away from and the cooperating of sheave that therefore in the installation process of operating personal, having prevented effectively that its finger, clothes etc. are nipped maybe; Stoped the vehicle rollover that causes because of the chain disengaging to the infringement that personnel, equipment bring simultaneously, eliminated prior art personnel, vehicle and the existing potential safety hazard of lifting machine.

Description of drawings

Fig. 1 is the structure assembly drowing of lifting machine in the prior art.

Fig. 2 is the structural representation of lifting machine in the prior art.

Fig. 3 is the structure diagram of the utility model.

Fig. 4 is the assembling scheme drawing of oil cylinder in the utility model, sheave seat, sheave and U-shaped plate.

Fig. 5 is an example structure figure of the described U-shaped plate of the utility model.

Among figure: 1. column, 2. oil cylinder, 3. slide unit, 4. chain, 5. base plate, 6. sheave, 7. bearing pin, 8. shaft block ring, 9. sheave seat, 10. cavity volume, 11.U shape plate, 12. pin shaft holes.

The specific embodiment

can be expressly understood the technical spirit and the beneficial effect of the utility model more for the inspector that the makes Patent Office especially public; The applicant general combines accompanying drawing to elaborate with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model technical scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.

see also Fig. 3, Fig. 4 and combine Fig. 5; A kind of lifting chain bar is used anti-shedding mechanism; Described lifting machine have in the middle of comprising cavity volume 10 column 1, be fixed on column 1 bottom base plate 5, be located at oil cylinder 2 in the cavity volume 10 of column 1, up or down be provided in slide unit 3 on the column 1, be fixed on the piston rod part of oil cylinder 2 sheave seat 9, be fixed on sheave 6 on the sheave seat 9, be used for the chain 4 that matches with sheave 6 through bearing pin 7 and shaft block ring 8; One end of chain 4 is connected with base plate 5, and the other end of chain 4 is connected with slide unit 3, and described lifting machine comprises that also a chain uses anti-shedding mechanism; This chain comprises a U-shaped plate 11 with anti-shedding mechanism; Offer pin shaft hole 12 respectively on two flangings of described U-shaped plate 11, the position of pair of pin axis hole 12 is corresponding, and U-shaped plate 11 is located in the two ends of bearing pin 7 through this to pin shaft hole 12; And fix through shaft block ring 8 in the outside; Thereby U-shaped plate 11 is installed on the sheave seat 9, and this U-shaped plate 11 is coated on the both sides of said sheave 6 Widths and covers the upper end of chain 4, can prevent that described chain 4 from running out of from sheave 6.

start power supply when the lifting machine is worked, in the hydraulic oil pressure in the pumping plant to oil cylinder 2, make that the piston rod on the oil cylinder 2 upwards promotes, and drive chain 4 and move, and drive slide unit 3 by chain 4 and upwards promote.The utility model can cover the upper end of chain 4 owing to have additional U-shaped plate 11 in the both sides of sheave Width on the one hand, thereby can avoid the quilts such as finger, clothes of operating personal to clamp; On the other hand,,, thereby can prevent that chain from running out of from sheave 6, guarantee that two slide units of lifting machine can synchronous liftings, can avoid the rollover of maintenance vehicle, guarantee safe in utilization because U-shaped plate 11 is arranged on the both sides of sheave 6 Widths even a side chain bar is loose excessively.

In sum, the technical scheme that the utility model provides has remedied the shortcoming in the prior art, has reached goal of the invention, has embodied non-obvious technique effect

Claims

1. a kind of lifting chain bar is used anti-shedding mechanism; Described lifting machine have in the middle of comprising cavity volume (10) column (1), be fixed on column (1) bottom base plate (5), be located at oil cylinder (2) in the cavity volume (10) of column (1), up or down be provided in slide unit (3) on the column (1), be fixed on the piston rod part of oil cylinder (2) sheave seat (9), be fixed on sheave (6) on the sheave seat (9), be used for the chain (4) that matches with sheave (6) through bearing pin (7) and shaft block ring (8); One end of chain (4) is connected with base plate (5); The other end of chain (4) is connected with slide unit (3); It is characterized in that: described lifting machine comprises that also a chain uses anti-shedding mechanism; This chain comprises that with anti-shedding mechanism one is installed in the U-shaped plate (11) on the sheave seat (9); Described U-shaped plate (11) is coated on the both sides of said sheave (6) Width, and covers the upper end of chain (4).

2. Lifting chain bar according to claim 1 is used anti-shedding mechanism; It is characterized in that offering pin shaft hole (12) respectively on two flangings of described U-shaped plate (11); The position of pair of pin axis hole (12) is corresponding; U-shaped plate (11) is located in the two ends of bearing pin (7) through this to pin shaft hole (12), and is fixed by described shaft block ring (8) in the outside