CN210028912U

CN210028912U - Chain conveying mechanism with adjustable spacing

Info

Publication number: CN210028912U
Application number: CN201920664499.4U
Authority: CN
Inventors: 钱璘程
Original assignee: SHANGHAI CHINA SPRING Corp Ltd
Current assignee: SHANGHAI CHINA SPRING Corp Ltd; China Spring Corp Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-02-07
Anticipated expiration: 2029-05-09

Abstract

A chain conveying mechanism with adjustable spacing comprises a pair of chain transmission mechanisms, a pair of movable supports, a driving mechanism and a spacing adjusting mechanism. Each chain transmission mechanism comprises a chain, a driving chain wheel and at least one driven chain wheel; the pair of movable brackets are arranged opposite to each other, and the chains of the pair of chain wheel transmission mechanisms are respectively arranged on the pair of movable brackets in a sliding way; the driving mechanism comprises a driving shaft, and driving chain wheels of the pair of chain transmission mechanisms are respectively sleeved on the driving shaft in an axially movable manner and can rotate along with the driving shaft. The spacing adjusting mechanism is respectively movably connected with the pair of movable brackets and used for driving the pair of movable brackets to approach or depart from each other so as to adjust the spacing between the pair of chain transmission mechanisms. The utility model discloses can adjust a pair of chain drive's interval in a flexible way conveniently to can realize the transport of the product of different width.

Description

Chain conveying mechanism with adjustable spacing

Technical Field

The utility model relates to a chain conveying mechanism.

Background

At present, when the automobile stabilizer bar is tempered, the automobile stabilizer bar is conveyed to a tempering furnace through a chain conveying mechanism to be tempered. The existing chain conveying mechanism comprises a pair of chain transmission mechanisms, a pair of brackets and a driving mechanism. Each chain transmission mechanism comprises a chain, a driving chain wheel and at least one driven chain wheel; the pair of brackets are arranged opposite to each other, and the chains of the pair of chain wheel transmission mechanisms are respectively arranged on the pair of brackets in a sliding way; the driving mechanism comprises a driving shaft and a motor for driving the driving shaft to rotate, and driving chain wheels of the pair of chain transmission mechanisms are respectively sleeved on the driving shaft and can rotate along with the driving shaft. During conveying, the automobile stabilizer bar is placed on the chains of the pair of chain transmission mechanisms and moves along with the chains.

The existing chain conveying mechanism cannot conveniently adjust the distance between a pair of chain transmission mechanisms, so that the conveying of stabilizer bar products with different widths is difficult to realize.

Disclosure of Invention

The utility model aims to solve the technical problem that a can adjust the chain conveying mechanism of interval in a flexible way conveniently is provided to realize the transport of the product of different width.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a chain conveying mechanism with adjustable spacing comprises a pair of chain transmission mechanisms, a pair of brackets and a driving mechanism; each chain transmission mechanism comprises a chain, a driving chain wheel and at least one driven chain wheel; the pair of brackets are arranged opposite to each other, and the chains of the pair of chain wheel transmission mechanisms are respectively arranged on the pair of brackets in a sliding way; the driving mechanism comprises a driving shaft, and driving chain wheels of the pair of chain transmission mechanisms are respectively sleeved on the driving shaft and can rotate along with the driving shaft; the driving mechanism is characterized in that the pair of brackets are movable brackets, and the pair of driving chain wheels are respectively sleeved on the driving shaft in an axially movable manner; the chain conveying mechanism with the adjustable distance comprises a distance adjusting mechanism, and the distance adjusting mechanism is movably connected with the pair of movable supports respectively and used for driving the pair of movable supports to approach or depart from each other so as to adjust the distance between the pair of chain conveying mechanisms.

The utility model discloses at least, have following advantage:

the utility model discloses a pair of movable support of interval guiding mechanism drive is close to or keeps away from each other, and then the interval between the adjustable a pair of chain drive to realize the transport of chain conveying mechanism to the product of different width.

Drawings

Fig. 1 shows a schematic front view of a pitch-adjustable chain conveying mechanism according to an embodiment of the present invention.

Fig. 2 shows a schematic top view of a pitch adjustable chain conveyor according to an embodiment of the present invention.

Fig. 3 shows a side view of an adjustable pitch chain conveyor according to an embodiment of the present invention.

Fig. 4 is a partially enlarged schematic view illustrating a pitch adjustment mechanism according to an embodiment of the present invention.

Fig. 5 is a schematic partial sectional view illustrating a pitch adjustment mechanism according to an embodiment of the present invention.

Fig. 6 shows a schematic cross-sectional view of a drive sprocket, a drive shaft, and a sprocket displacement guide mechanism according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1 to 6. According to the utility model discloses a but chain conveyor of adjustable interval of embodiment includes a pair of chain drive, a pair of movable support 2, actuating mechanism and interval guiding mechanism.

Each chain drive comprises a chain 11, a drive sprocket 12 and at least one driven sprocket 13. The pair of moving frames 2 are disposed opposite to each other, and the chains 11 of the pair of sprocket drive mechanisms are slidably disposed on the pair of frames 2, respectively.

In this embodiment, each of the movable supports 2 includes an upper supporting rail 21, a lower supporting rail 22 and a plurality of supporting rods 23, and the upper ends and the lower ends of the plurality of supporting rods 23 are respectively connected to the upper supporting rail 21 and the lower supporting rail 22; the upper rail 22 has a slide groove 221 extending in the axial direction, and a part of the chain 11 is slidably disposed in the slide groove 221. Optionally, the headrail 22 is formed from L-shaped angle steel, the transverse and vertical sides of which together define the chute 221. Each chain transmission mechanism has three driven sprockets 13, one driven sprocket 13 on the same side as the driving sprocket 13 is disposed on the first sprocket mounting plate 141, the other two driven sprockets 13 are disposed on the second sprocket mounting plate 142, and the first sprocket mounting plate 141 and the second sprocket mounting plate 142 are both connected to the upper carrier rail 21 and the lower carrier rail 22.

The driving mechanism comprises a driving shaft 31, and the driving chain wheels 12 of the pair of chain transmission mechanisms are respectively sleeved on the driving shaft 31 in an axially movable manner and can rotate along with the driving shaft 31. In this embodiment, each driving sprocket 12 is provided with a spline shaft sleeve 121, and the inner wall of the spline shaft sleeve 121 is provided with a spline groove; the driving shaft 31 is a spline shaft provided with an external spline fitted with the spline groove, and the external spline of the spline shaft is embedded in the spline groove of the spline shaft sleeve 121.

The spacing adjusting mechanism is movably connected with the pair of movable brackets 2 respectively and used for driving the pair of movable brackets 2 to approach or depart from each other so as to adjust the spacing between the pair of chain transmission mechanisms.

In the present embodiment, the chain pitch adjustment mechanism includes a power source 41, a plurality of sets of connecting members, and a plurality of connecting shafts 43.

Each group of connecting components comprises a connecting joint 421 and a pair of connecting rods 422, one end of each connecting rod 422 is movably connected with the corresponding pair of movable supports 2, and the other end of each connecting rod 422 is connected with the connecting joint 421. Alternatively, each of the two ends of each of the connecting rods 422 is provided with a joint bearing 423, and the joint bearings 423 at the two ends of the connecting rod 422 are connected with the connecting joint 421 and the moving bracket 2 through bolts 424, respectively, and the joint bearings 423 can rotate around the bolts 424. By adopting the joint bearing, the phenomenon that the connecting rod is blocked in the moving process can be avoided.

The connection joints 421 of the plurality of sets of connection assemblies are disposed between the pair of moving brackets 2 and arranged in a row, and every two adjacent connection joints are connected to each other by a connection shaft 43. The power source is connected with the connecting joints at any end of the row of connecting joints to drive the connecting joints to move. The power source 41 adopts an oil cylinder, a push rod 411 of the oil cylinder is spirally connected with the connecting joint 421, and the connecting shaft 43 is also spirally connected with the connecting joint 421. Alternatively, the push rod 411 and the connecting shaft 43 are provided with external threads, and the connecting joint 421 is provided with internal threads matching with the external threads of the push rod 411 and the external threads of the connecting shaft 43.

In the tempering furnace of the stabilizer bar of the automobile, because the length of the chain is long (about 18 meters), when the chain performs the opening and closing action, it is difficult to ensure the synchronous consistency of the front and rear intervals. In the embodiment, a structure that a single oil cylinder drives a plurality of connecting shafts 43 and a plurality of pairs of connecting rods 422 is adopted, the front and rear intervals of the chains are connected into a rigid connection, the front and rear synchronism of the two chains when the intervals are opened and closed is ensured, and the driving shaft 31 is prevented from being dead or bent.

Further, the pitch adjustment mechanism includes a plurality of beams 44 disposed at intervals, and the pair of moving brackets 2 is movably disposed on the plurality of beams 44. The bottom of each mobile carriage 2 is provided with a roller 24, the roller 24 being rollable along a cross beam 44. Because the chain of the chain transmission mechanism for the tempering furnace is long in length and heavy in weight (the total weight of the whole chain transmission mechanism can reach about 2 tons), the whole opening and closing of the chain transmission mechanism are difficult to realize. This embodiment installs 6 groups of gyro wheels and 6 groups of crossbeams 44 additional in the bottom of lower support rail 22, converts the motion of opening and shutting of chain into rolling friction, can reduce the required drive power that the drive chain interval opened and shut greatly, only can accomplish the chain drive that opens and shuts for 200 mm's hydro-cylinder with single bore, and the cost is reduced has also made things convenient for the maintenance.

Further, as shown in fig. 6, the chain conveying mechanism with adjustable spacing includes a sprocket displacement guide mechanism disposed between a pair of driving sprockets 12. The sprocket displacement guide mechanism includes an intermediate wheel 51, a pair of side wheels 52, and a plurality of guide shafts 53, the intermediate wheel 51 being fixedly attached to the drive shaft 31, and the plurality of guide shafts 53 being fixedly attached to the intermediate wheel 51, respectively. A pair of side wheels 52 are respectively located on both sides of the intermediate wheel 51 and are axially slidably mounted on the drive shaft 31 and the plurality of guide shafts 53, the pair of side wheels 52 being respectively connected to the pair of drive sprockets 12.

When the automobile stabilizer bars 9 with different widths need to be sent into a tempering furnace for tempering and the chain spacing needs to be adjusted, the push rod 411 of the oil cylinder 41 can be controlled to extend or retract. When the push rod 411 extends, the connecting joints 421 of the multiple groups of connecting assemblies and the connecting shafts 43 are driven to move forward, so that the pair of connecting rods 422 connected with the connecting joints 421 open, the lower rail supporting rollers 24 are driven to roll outwards, the distance between the pair of chain transmission mechanisms is increased, and the automobile stabilizer bar 9 with large width can be conveyed. Similarly, when the push rod 411 performs a retracting action, the distance between the pair of chain transmission mechanisms becomes smaller, so that the vehicle stabilizer bar 9 with a smaller width can be conveyed.

The foregoing description is provided to further illustrate the present invention in connection with the detailed description and the accompanying drawings. However, it is obvious that the present invention can be implemented in many ways other than those described herein, and those skilled in the art can make various generalizations and deductions based on the actual use without departing from the scope of the present invention.

Claims

1. A chain conveying mechanism with adjustable spacing comprises a pair of chain transmission mechanisms, a pair of brackets and a driving mechanism; each chain transmission mechanism comprises a chain, a driving chain wheel and at least one driven chain wheel; the pair of brackets are arranged opposite to each other, and the chains of the pair of chain wheel transmission mechanisms are respectively arranged on the pair of brackets in a sliding way; the driving mechanism comprises a driving shaft, and driving chain wheels of the pair of chain transmission mechanisms are respectively sleeved on the driving shaft and can rotate along with the driving shaft; the pair of driving chain wheels are respectively sleeved on the driving shaft in an axially movable manner;

the chain conveying mechanism with the adjustable spacing comprises a spacing adjusting mechanism, and the spacing adjusting mechanism is movably connected with the pair of movable supports respectively and used for driving the pair of movable supports to approach or separate from each other so as to adjust the spacing between the pair of chain conveying mechanisms.

2. The adjustable pitch chain conveyor mechanism of claim 1, wherein the chain pitch adjustment mechanism comprises a power source, a plurality of sets of connecting members, and a plurality of connecting shafts;

each group of connecting components comprises a connecting joint and a pair of connecting rods, one ends of the pair of connecting rods are respectively movably connected with the pair of movable supports, and the other ends of the pair of connecting rods are respectively connected with the connecting joint;

the connecting joints of the multiple groups of connecting assemblies are arranged between the pair of movable supports and are arranged in a row, and every two adjacent connecting joints are mutually connected through one connecting shaft;

the power source is connected with the connecting joints at any end of the row of connecting joints.

3. The chain conveying mechanism with adjustable spacing according to claim 2, wherein the two ends of each connecting rod are respectively provided with a joint bearing, the joint bearings at the two ends of the connecting rod are respectively connected with the connecting joint and the movable bracket through bolts, the joint bearings can rotate around the bolts,

the connecting shaft is spirally connected with the connecting joint.

4. The chain conveying mechanism with adjustable spacing according to claim 2, wherein the power source is an oil cylinder, and a push rod of the oil cylinder is spirally connected with the connecting joint.

5. The adjustable pitch chain conveyor mechanism as claimed in claim 1, wherein the pitch adjustment mechanism comprises a plurality of beams disposed at intervals, and the pair of moving brackets are movably disposed on the plurality of beams.

6. The adjustable pitch chain conveyor of claim 5 wherein the bottom of each mobile carriage is provided with rollers.

7. The pitch-adjustable chain conveying mechanism according to claim 1 or 5, wherein each of the movable supports includes an upper supporting rail, a lower supporting rail, and a plurality of supporting rods, and upper ends and lower ends of the plurality of supporting rods are connected to the upper supporting rail and the lower supporting rail, respectively;

the upper supporting rail is provided with a sliding groove extending along the axial direction, and one part of the chain is slidably arranged in the sliding groove.

8. The adjustable pitch chain conveyor mechanism of claim 1, wherein each drive sprocket is provided with a splined hub, the inner wall of which is provided with a splined groove; the driving shaft is a spline shaft, the spline shaft is provided with an external spline matched with the spline groove, and the external spline of the spline shaft is embedded in the spline groove of the spline shaft sleeve.

9. The adjustable pitch chain conveyor mechanism of claim 8, wherein said adjustable pitch chain conveyor mechanism comprises a sprocket shift guide mechanism disposed between said pair of drive sprockets; the chain wheel displacement guide mechanism comprises a middle wheel, a pair of side wheels and a plurality of guide shafts, the middle wheel is fixedly arranged on the driving shaft, and the plurality of guide shafts are respectively and fixedly arranged on the middle wheel; the pair of side wheels are respectively positioned at two sides of the middle wheel and are axially slidably arranged on the driving shaft and the plurality of guide shafts, and the pair of side wheels are respectively connected with a pair of driving chain wheels.