CN213444678U - Driving shaft structure for chain conveyor - Google Patents

Abstract

The utility model relates to the field of automation industry, in particular to the technical field of automatic tray conveying system products, which is a driving shaft structure for a chain conveyor and comprises a hexagonal through shaft; the two ends of the hexagonal through shaft are respectively connected with the driving unit, one end of the hexagonal through shaft is connected to the motor shaft through a connecting sleeve, and the motor shaft and the end connected with the hexagonal through shaft are in a hexagonal shaft structure. The over-positioning problem of the flange type installation motor on one side of the driving shaft caused by the unavoidable error in the assembly can be eliminated, the assembly and the stock are convenient, the cost of the standardized conveyor is reduced, and the delivery period is shortened.

Description

Driving shaft structure for chain conveyor

Technical Field

The utility model relates to an automatic industrial field, concretely relates to automatic tray conveying system class product technical field, it is a drive shaft structure for chain conveyor.

Background

Conveying mechanisms forming a scale on the market at present are divided into three main categories:

the first type of conveying mechanism uses die-casting aluminum alloy shells which can be assembled left and right to serve as left and right shells of a module respectively, one section of aluminum profile is used between the shells on the two sides to serve as a transverse tie bar for connection, a vertical-direction tensioner is arranged in the shell, a deep groove ball bearing is used for connecting the shells with a chain wheel, the chain wheel uses an inner hexagonal hole, a motor speed reducer uses an orthogonal hollow shaft with the inner hexagonal hole, and a driving shaft adopts a straight-through hexagonal copper bar.

The defects of the above structure: a. only the orthogonal hollow shaft motor reducer with the hexagonal socket can be used, and the limitation is realized; c. the use of hexagonal rods partially solves the problem of over-positioning of the drive shaft, but with a small dimensional margin, the solvable off-axis deviations are small.

The second type conveying mechanism uses die-casting aluminum alloy shells which can be assembled left and right to serve as left and right shells of the module respectively, one section of aluminum profile is used between the shells on the two sides to be connected as a transverse tie bar, a vertical-direction tensioner is arranged in the shell, a deep groove ball bearing is used for connecting the shells with a chain wheel, the chain wheel uses a circular hole to form a flat key groove, a motor speed reducer uses an orthogonal hollow shaft which is formed with the circular hole and the flat key groove, and a driving shaft adopts a straight-through circular shaft and uses a matched transmission mode of the shaft.

The defects of the above structure: a. there is serious excessive location problem, and the concrete performance is motor swing, drive shaft abnormal sound, drive sprocket abnormal sound, the problem etc. of the quick damage of drive sprocket bearing.

Chain conveyors in other domestic units: the side plate of the machining driving mechanism is directly connected with the end part of the wire body, no tie bar is arranged, a deep groove ball bearing or a self-aligning bearing is used for connecting the shell with the chain wheel, a tensioner is not arranged in the driving mechanism, the tensioner is arranged at the tail end, horizontal tensioning is carried out, the chain wheel is provided with a flat key groove by using a circular hole, a motor speed reducer uses a standard orthogonal hollow shaft provided with the circular hole and the flat key groove, and a driving shaft adopts a straight-through circular shaft and uses a matching transmission mode of the shaft and the key.

The defects of the above structure: a. the motor has a certain over-positioning problem, the severity depends on the specific situation, and if a moment arm is adopted to assemble the motor instead of a flange connection mode for solving the over-positioning problem, the aesthetic degree of the appearance is sacrificed; b. the design and manufacture are carried out in a non-standard equipment mode, and the applicability of stock is not large.

The Chinese patent application CN107973065A, entitled "chain conveyor driving mechanism with split shaft", provides a fully flexible shaft mechanism. Although the structure is superior, the assembly is complicated, and the cost performance is low because the cost is high when the device is applied to an application without the total load of more than 1 ton.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the utility model provides a drive shaft structure for chain conveyor, it can eliminate because of the drive shaft one side flange formula installation motor that inevitable error leads to in the assembly and cross the location problem to make it be convenient for assembly and stock, make standardized conveyor's cost reduction, delivery cycle shorten.

In order to achieve the purpose, the technical scheme adopted by the utility model is a driving shaft structure for a chain conveyor, which comprises a hexagonal through shaft; the two ends of the hexagonal through shaft are respectively connected with the driving unit, one end of the hexagonal through shaft is connected to the motor shaft through a connecting sleeve, and the motor shaft and the end connected with the shaft end of the hexagonal through shaft are in a hexagonal shaft structure.

Based on above-mentioned technical scheme, adopt semi-flexible axle construction, the axle head of hexagonal expert's axle is connected to the motor shaft through the adapter sleeve promptly, has satisfied the flexonics between motor and the drive unit. Instead of adopting a split structure of a fully flexible shaft, a simpler assembly mode and better cost performance are obtained.

Furthermore, both ends of the hexagonal through shaft penetrate through and extend out of the driving unit shell, and the shaft end of the hexagonal through shaft extending out of one end is in butt joint with the motor shaft at the driving motor.

Furthermore, the end, which is not connected with the motor shaft, of the hexagonal through shaft is provided with a cover plate, and the shaft end, which is sheltered from the hexagonal through shaft, of the cover plate is detachably fixed on the shell of the driving unit.

Based on above-mentioned technical scheme, the both ends that adopt the hexagonal expert axle all pass and stretch out the drive unit casing, and wherein the axle head butt joint drive motor department of the hexagonal expert axle that one end stretches out motor shaft, the other end utilizes apron confined structure. The two ends of the hexagonal through shaft can be connected with the driving motor, and when the connecting end of the driving motor needs to be replaced, the driving motor is convenient to detach and install.

Further, the driving unit comprises a driving unit shell, a driving chain wheel, a first bearing and a second bearing; the first bearing is sleeved on the hexagonal through shaft and connected with the driving unit shell, the driving unit shell is connected with the driving chain wheel through the second bearing, and the driving chain wheel is sleeved on the hexagonal through shaft.

Furthermore, the shaft end of the hexagonal through shaft extending out of one end of the hexagonal through shaft is connected to the motor shaft through a connecting sleeve, and the motor shaft and the end connected with the shaft end of the hexagonal through shaft are in a hexagonal shaft structure.

Based on above-mentioned technical scheme, adopt semi-flexible axle construction, the axle head of hexagonal expert's axle is connected to the motor shaft through the adapter sleeve promptly, has satisfied the flexonics between motor and the drive unit. The transmission part of the driving motor reducer shaft uses a driving motor shaft, structurally, a transmission shaft key transmission mode is adopted in the motor reducer, a connection mode of a hexagonal shaft is adopted outside the reducer, and the torque of the driving motor is transmitted to the independent driving shaft through the plug-in type connecting sleeve which is consistent with the connection mode, so that the torque is transmitted to the driving chain wheels on two sides.

Furthermore, a driving shaft protective sleeve is sleeved outside the hexagonal through shaft between the driving units on the two sides.

Furthermore, jump ring notch is seted up at hexagonal expert axle both ends, inside assembly jump ring in the jump ring notch.

Preferably, the clamp spring is a European standard three-jaw clamp spring.

Based on the technical scheme, a full-length hexagonal shaft is processed in the middle of two sides of the driving unit, the European standard three-jaw clamp spring is matched, the condition that the maximum load is within 1 ton is utilized, the requirement of two sides of the driving unit for the deviation of coaxiality is met, a split structure of a full-flexible shaft is not adopted, a simpler assembling mode is obtained, and the cost performance is better.

The utility model has the advantages that: the semi-flexible shaft and the fully-flexible shaft are identical in assembly structure of the motor and the driving unit, and the shaft end of the hexagonal through shaft is connected to the motor shaft through a connecting sleeve, so that the problem of concentricity of the driving unit and the motor side is solved. Meanwhile, the larger the load, the more serious the influence due to poor concentricity. Under the condition, the matching clearance of the hexagonal shaft is used, the concentricity deviation requirement of bilateral driving can be met under the load environment within 1 ton, and a simpler and more efficient assembly structure and a better cost performance are obtained.

Drawings

Fig. 1 is a side view of the present invention;

FIG. 2 is a cross-sectional view of portion A-A of FIG. 1;

FIG. 3 is a front view of the present invention;

fig. 4 is a top view of the present invention;

fig. 5 is a perspective view of the present invention;

in the figure: 1. hexagonal expert axle, 2, drive unit, 2.1, drive unit casing, 2.2, drive sprocket, 2.3, first bearing, 2.4, second bearing, 3, adapter sleeve, 4, motor shaft, 5, apron, 6, drive shaft protective sheath, 7, parallel key, 8, jump ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A drive shaft structure for a chain conveyor, comprising a hexagonal through shaft 1; the two ends of the hexagonal through shaft 1 are respectively connected with the driving unit 2, one end of the hexagonal through shaft 1 is connected to the motor shaft 4 through the connecting sleeve 3, and one end of the motor shaft 4 connected with the hexagonal through shaft 1 is in a hexagonal shaft structure.

Furthermore, both ends of the hexagonal through shaft 1 penetrate through and extend out of the driving unit shell, and the shaft end of the hexagonal through shaft with one end extending out is in butt joint with the motor shaft 4 at the driving motor.

Furthermore, the cover plate 5 is arranged at one end, which is not connected with the motor shaft, of the hexagonal through shaft 1, and the shaft end, which is sheltered from the hexagonal through shaft 1, of the cover plate 5 is detachably fixed on the shell of the driving unit.

Further, the driving unit 2 comprises a driving unit housing 2.1, a driving sprocket 2.2, a first bearing 2.3 and a second bearing 2.4; first bearing 2.3 suit is connected with drive unit casing 2.1 on hexagonal expert axle 1, and drive unit casing 2.1 passes through second bearing 2.4 and connects drive sprocket 2.2, and drive sprocket 2.2 suit is on hexagonal expert axle 1.

Furthermore, the shaft end of the hexagonal through shaft 1, which extends out of one end of the hexagonal through shaft 1, is connected to a motor shaft 4 through a connecting sleeve 3, and the end of the motor shaft 4, which is connected with the shaft end of the hexagonal through shaft 1, is of a hexagonal shaft structure.

Further, a driving shaft protective sleeve 6 is sleeved outside the hexagonal through shaft 1 between the driving units 2 on the two sides.

Furthermore, a clamp spring notch is formed in each of two ends of the hexagonal through shaft 1, and a clamp spring 8 is assembled in each clamp spring notch.

Preferably, the clamp spring is a European standard three-jaw clamp spring.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. A drive shaft structure for a chain conveyor, characterized in that: comprises a hexagonal through shaft; the two ends of the hexagonal through shaft are respectively connected with the driving unit, one end of the hexagonal through shaft is connected to the motor shaft through a connecting sleeve, and the motor shaft and the end connected with the hexagonal through shaft are in a hexagonal shaft structure.

2. A drive shaft structure for a chain conveyor according to claim 1, wherein: both ends of the hexagonal through shaft penetrate through and extend out of the driving unit shell, and the shaft end of the hexagonal through shaft, which extends out of one end, is in butt joint with a motor shaft at the position of the driving motor.

3. A drive shaft structure for a chain conveyor according to claim 2, wherein: the one end that the hexagonal expert axle is not connected the motor shaft sets up the apron, the axle head that the apron sheltered from the hexagonal expert axle can be dismantled and fix on drive unit casing.

4. A drive shaft structure for a chain conveyor according to any one of claims 1 to 3, wherein: the driving unit comprises a driving unit shell, a driving chain wheel, a first bearing and a second bearing; the first bearing is sleeved on the hexagonal through shaft and connected with the driving unit shell, the driving unit shell is connected with the driving chain wheel through the second bearing, and the driving chain wheel is sleeved on the hexagonal through shaft.

5. The drive shaft structure for a chain conveyor according to claim 4, wherein: the shaft end of the hexagonal shaft extending out of one end of the hexagonal shaft is connected to a motor shaft through a connecting sleeve, and the end, connected with the shaft end of the hexagonal shaft, of the motor shaft is of a hexagonal shaft structure.

6. A drive shaft structure for a chain conveyor according to any one of claims 1 to 3, wherein: and a driving shaft protective sleeve is sleeved outside the hexagonal through shaft between the driving units at two sides.

7. A drive shaft structure for a chain conveyor according to any one of claims 1 to 3, wherein: and clamp spring notches are formed in two ends of the hexagonal through shaft, and clamp springs are assembled in the clamp spring notches.

8. A drive shaft structure for a chain conveyor according to claim 7, wherein: the clamp spring is a European standard three-jaw clamp spring.

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