CN205237480U - A device for changing snub pulley - Google Patents

Abstract

The utility model discloses a device for changing snub pulley, including promoting the bearing roller and being used for the left and right hoisting device who promotes bearing roller both ends lifting, every hoisting device fixes in the lifting handle upper end including rotatory hand wheel, lifting handle and the movable support that lives, rotatory hand wheel, the lifting handle with live movable support with threaded connection, every movable support detachably that lives fixes on the crossbeam of conveyer one side and sets up the lifting handle perpendicularly, the lifting handle lower extreme rotationally is connected with and is used for hanging the couple that promotes the pivot of bearing roller tip. The snub pulley can be realized changing on line by this device, can in time change the snub pulley that does not change, reduces the belt wearing and tearing, prolongs the life of belt, increases and overhauls the security.

Description

Device for changing the lower idler roller

technical field

The utility model relates to a device for replacing idler rollers of a belt conveyor, in particular to a device for replacing lower idler rollers.

Background technique

Belt transportation is a very widely used transportation method, especially in chemical enterprises, it is the key equipment in chemical enterprises, if there is a failure, it will cause the entire production line to stop. The conveying of the belt is carried out under the support of the upper and lower rollers. The damage of the rollers will not only affect the transmission of the belt but also cause wear to the belt. If the belt is damaged and stopped for replacement, driving forcibly will cause the belt to gradually damage. If it is replaced during operation, the traditional replacement method is to pry up the running belt manually with a crowbar, and another employee will take out and replace the idler roller. It may result in serious injury, resulting in a great safety accident.

Contents of the invention

The purpose of this utility model is to provide a device for replacing the lower idler against the deficiencies of the prior art. The replacement of the lower idler is safe and fast, which can reduce the damage rate of the belt and maintain the start-up rate of production.

In order to achieve the above purpose, the utility model adopts the following technical solutions: including lifting rollers and left and right lifting devices used to lift both ends of the lifting rollers, each lifting device includes a rotating hand wheel, a lifting screw and a movable bracket, The rotating hand wheel is fixed on the upper end of the lifting screw, and the lifting screw is threaded to the movable bracket. Each movable bracket is detachably fixed on the beam on one side of the conveyor and the lifting screw is vertically set. The lower end of the lifting screw is rotatably connected for hanging. Lift the hook on the shaft at the end of the idler.

Further, one side of the movable support is provided with a first slot that can be embedded in the conveyor beam, the width of the first slot is greater than the width of the beam, and the outer ends of the upper and lower walls of the first slot are provided with positioning holes and positioning holes. mating locating pins.

Further, the movable support has an "I"-shaped structure. The first slot on one side of the movable support is matched with the conveyor beam, and the second slot on the other side is provided with a nut threaded with the lifting screw, and the second slot of the nut is placed. The upper and lower walls of the second slot are provided with through holes for the passage of the lifting screw.

The beneficial effect of the utility model is that: by setting movable brackets and lifting screws that can be movably installed on the beams on both sides of the belt conveyor, the lifting rollers placed under the belt can be lifted upwards, thereby realizing online replacement of the lower rollers. Increase the productivity of belt conveyors. Secondly, for a belt conveyor that runs continuously, the non-rotating lower idler can be replaced in time, which can reduce belt wear, prolong the service life of the belt, and increase maintenance safety. Again, the device is not only simple and compact in structure, but also easy to install on the beam, and is light in weight, easy to carry and easy to install.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the right side view of Fig. 1 .

The meanings of the marked symbols in the figure are as follows:

1—right lifting device 11—rotating handwheel 12—lifting screw 13—movable bracket 131—first slot 132—second slot 14—locating pin 15—nut 16—hook

2 - Left lifting device

3 - lifting roller 31 - rotating shaft

4 - Beam

5 - Downlink belt

6 - Uplink belt

detailed description

The technical solution in the embodiment of the utility model is clearly and completely described below in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model includes a lifting idler 3 and left and right lifting devices 2, 1 for lifting the two ends of the lifting idler 3 upwards, and each lifting device includes a rotating hand wheel 11, a lifting screw 12 and a movable Support 13 forms. The rotating hand wheel 11 is fixed on the upper end of the lifting screw 12 .

The movable bracket 13 is in the shape of an "I" and has first and second slots 131 and 132 on both sides. The first slot 131 on one side of the movable support 13 can be embedded in the conveyor crossbeam 4, and the movable support 13 is detachably fixed on the crossbeam 4 by the first slot 131, the width of the first slot 131 is greater than the width of the crossbeam 4, the second The upper and lower wall outer ends of a slot 131 are provided with a positioning hole and a positioning pin 14 cooperating with the positioning hole, and the movable bracket 13 is limited on the crossbeam 4 by the positioning pin 14; the second slot on the other side of the movable bracket 13 132 is placed with the nut 15 threaded with the lifting screw 12, the nut 15 can be moved or fixed in the second slot 132 by welding, the second slot 132 upper and lower walls of the nut 15 are provided with a lifting screw 12 passes through the through hole, and the lifting screw 12 is threadedly connected with the nut 15 placed in the slot through passing through the upper and lower walls of the second slot 132 . The lower end of the lifting screw 12 is rotatably connected with a hook 16 for hanging the rotating shaft 31 at the end of the lifting roller 3 .

When replacing the lower roller, fix the movable brackets 13 of the left and right lifting devices 1 and 2 on the beams 4 on both sides of the conveyor on the side of the lower roller 7 to be replaced, and pass the lifting screw 12 through the second part of the corresponding movable bracket. The slot 132 is connected with the nut 15, and then the hook 16 is connected to the lower end of the lifting screw 12, but the lifting roller 3 is placed under the lower belt and the rotating shafts 31 at both ends are hung on the hooks 16 of the left and right lifting devices 1 and 2 superior. Then rotate the rotating hand wheels 11 of the left and right lifting devices 1 and 2 to raise the lifting screw 12, and lift the lifting roller 3 upwards through the hook 16 to lift the belt 5 of the down section, as shown in Figure 2, the corresponding lower bracket can be replaced roll 7. Part number 6 in the figure is the uplink belt.

Claims (3)

1. for changing the device of snub pulley, it is characterized in that: comprise and promote carrying roller (3) and be used for the two ends lifting of lifting carrying rollerLeft and right lifting device (21), each lifting device comprises rotation hand wheel (11), lift-bolt (12) and travel(l)ing rest (13),Rotation hand wheel (11) is fixed on lift-bolt (12) upper end, lift-bolt (12) with travel(l)ing rest (13) to be threaded, eachTravel(l)ing rest (13) is removably fixed on conveyer one side crossbeam (4) above and lift-bolt (12) is vertically arranged, and promotes spiral shellBar (12) lower end is connected with the hook (16) that promotes carrying roller (3) end part rotating shaft (31) for hanging rotationally.

2. according to claim 1 for changing the device of snub pulley, it is characterized in that: travel(l)ing rest (13) one sides are provided with canThe first slot (131) that embeds conveyer crossbeam (4), the width of the first slot (131) is greater than the width of crossbeam (4), and first insertsThe fastening screw (14) that the upper and lower wall outer end of groove (131) is provided with locating hole and coordinates with locating hole.

3. according to claim 2 for changing the device of snub pulley, it is characterized in that: travel(l)ing rest (13) is " work " fontStructure, first slot (131) of travel(l)ing rest one side coordinates with conveyer crossbeam (4), in second slot (132) of opposite side, establishesHave and the nut (15) of lift-bolt (12) threaded engagement, on the upper and lower wall of the second slot (132) of placing nut (15), having canThe through hole passing through for lift-bolt (12).