CN204917840U - Chain elevating gear - Google Patents

Abstract

The utility model relates to a chain lifting device, which comprises a stand, and the stand is provided with slide rails along its length direction, and a lifting table is slidably fitted on the slide rails, and the stand is set on the slide rails to drive The sprocket chain assembly that lifts the platform up and down along the slide rail. The utility model has a reasonable structural design, adopts the transmission mode of the sprocket chain, and uses a unique winding mode to reduce the torque of the bearing shaft, with precise position control and high transmission efficiency.

Description

Chain lifting device

technical field

The utility model relates to a chain lifting device.

Background technique

At present, the lifting mechanisms of most equipment in the grain industry are driven by cylinders. Due to the compressibility of gas, the position control is not accurate enough.

Utility model content

In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a chain lifting device with reasonable structural design and high transmission efficiency.

In order to solve the above technical problems, the technical solution of the present invention is: a chain lifting device, including a stand, the stand is provided with slide rails along its length direction, and a lifting platform is slidably fitted on the slide rails. The stand is equipped with a sprocket chain assembly on the slide rail to drive the lifting platform up and down along the slide rail. The sprocket chain assembly includes a drive sprocket driven by a motor fixed on the top of the slide rail, and a The driven sprocket, the movable sprocket set arranged between the driving sprocket and the driven sprocket and the transmission chain, the movable sprocket set is fixedly connected with the lifting platform.

Preferably, the movable sprocket set includes an upper movable sprocket and a lower movable sprocket, and the stand is fixed with an upper fixing seat between the driving sprocket and the upper movable sprocket, and the stand is fixed on the driven sprocket A lower fixed seat is fixed between the lower movable sprocket, and one end of the transmission chain is fixed on the upper fixed seat, and then passes through the upper movable sprocket, the driving sprocket, the driven sprocket, and the lower movable sprocket, and the transmission chain The other end is fixed on the lower fixing seat.

Preferably, a worm gear reducer is arranged between the motor and the driving sprocket.

Compared with the prior art, the utility model has the following beneficial effects: the utility model has a reasonable structural design, adopts the transmission mode of the sprocket chain, and uses a unique winding mode to reduce the torque of the bearing shaft, and the position control is accurate, labor-saving, and transmission efficient.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Description of drawings

Fig. 1 is a structural schematic diagram of an embodiment of the utility model.

Fig. 2 is a schematic diagram of the transmission principle of the embodiment of the utility model.

In the figure: 1-standing frame, 2-sliding rail, 3-elevator, 4-motor, 5-driving sprocket, 6-driven sprocket, 7-upper movable sprocket, 8-lower movable sprocket, 9 -upper fixed seat, 10-lower fixed seat, 11-transmission chain, 12-worm gear reducer.

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific examples are given together with the accompanying drawings and described in detail as follows.

As shown in Figures 1 to 2, a chain lifting device includes a stand 1, the stand 1 is provided with a slide rail 2 along its length direction, the slide rail 2 is slidably fitted with a lifting platform 3, and the stand The frame 1 is provided with a sprocket chain assembly on the slide rail 2 to drive the elevating platform 3 up and down along the slide rail 2. The sprocket chain assembly includes a driving sprocket 5 driven by a motor 4 fixed on the top of the slide rail 2, The driven sprocket 6 fixed on the bottom of the slide rail 2, the movable sprocket group and the transmission chain 11 arranged between the driving sprocket 5 and the driven sprocket 6, the movable sprocket group is fixedly connected with the lifting platform 3.

In the embodiment of the utility model, the movable sprocket set includes an upper movable sprocket 7 and a lower movable sprocket 8, and the stand 1 is fixed with an upper fixing seat between the driving sprocket 5 and the upper movable sprocket 7 9. The stand 1 is fixed with a lower fixed seat 10 between the driven sprocket 6 and the lower movable sprocket 8, and one end of the transmission chain 11 is fixed on the upper fixed seat 9 and then passes through the upper movable sprocket 7, The driving sprocket 5, the driven sprocket 6, the lower movable sprocket 8, and the other end of the transmission chain 11 are fixed on the lower fixing seat 10.

In the embodiment of the present utility model, a worm gear reducer 12 is arranged between the motor 4 and the driving sprocket 5 .

In the embodiment of the present invention, the transmission shaft can be used to arrange multiple sets of sprocket chain assemblies along the width direction of the lifting platform 3, so that the up and down movement of the lifting platform 3 is more balanced and the force is more uniform.

The utility model is not limited to the above-mentioned best implementation mode, anyone can draw other various forms of chain lifting devices under the enlightenment of the utility model. All equivalent changes and modifications made according to the patent scope of the utility model should belong to the scope of the utility model.

Claims (3)

1. A chain lifting device, comprising a stand, is characterized in that: the stand is provided with a slide rail along its length direction, the slide rail is slidably fitted with a lifting platform, and the stand is arranged on the slide rail for use The sprocket chain assembly is used to drive the lifting platform up and down along the slide rail. The sprocket chain assembly includes a driving sprocket fixed on the top of the slide rail driven by a motor, a driven sprocket fixed on the bottom of the slide rail, and a An active sprocket set and a transmission chain between the sprocket wheel and the driven sprocket, the active sprocket set is fixedly connected with the lifting platform. 2. The chain lifting device according to claim 1, wherein the movable sprocket set comprises an upper movable sprocket and a lower movable sprocket, and the stand is fixed between the driving sprocket and the upper movable sprocket There is an upper fixed seat, and the stand is fixed with a lower fixed seat between the driven sprocket and the lower movable sprocket, and one end of the transmission chain is fixed on the upper fixed seat, and then passes through the upper movable sprocket, the driving sprocket, The driven sprocket, the lower movable sprocket, and the other end of the transmission chain are fixed on the lower fixing seat. 3. The chain lifting device according to claim 1, characterized in that: a worm gear reducer is arranged between the motor and the drive sprocket.