CN112298915B

CN112298915B - Chain transmission conveyer

Info

Publication number: CN112298915B
Application number: CN202011354429.2A
Authority: CN
Inventors: 覃忠华; 杨斌
Original assignee: Chongqing Zhongsichuang Intelligent Technology Co ltd
Current assignee: Chongqing Zhongsichuang Intelligent Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2022-04-01
Anticipated expiration: 2040-11-26
Also published as: CN112298915A

Abstract

The invention relates to the technical field of automatic transmission, in particular to a chain transmission conveying device which comprises a support, wherein a head wheel and a tail wheel are arranged on the support, a chain is connected between the head wheel and the tail wheel, a conveying trolley is connected onto the chain, a transition disc is fixedly connected onto a main shaft of the chain transmission conveying device, a stop lever capable of protruding out of the end face of the transition disc is connected onto the transition disc in a sliding mode, a matching hole capable of being matched with the stop lever is formed in the conveying trolley, a shifting mechanism is arranged on the support, and a link mechanism capable of pushing the stop lever to be partially inserted into the matching hole in an intermittent mode is connected between the shifting mechanism and the stop lever. In the overturning process of the conveying trolley, the baffle rod is inserted into the matching hole of the conveying trolley by using the toggle mechanism and the connecting rod mechanism, and the conveying trolley is limited and supported by using the baffle rod, so that the problem that the conveying trolley cannot be accurately and stably overturned on a chain type transmission conveying device in the prior art is solved.

Description

Chain transmission conveyer

Technical Field

The invention relates to the technical field of automatic transmission, in particular to a chain type transmission conveying device.

Background

The buffer type conveying equipment is widely applied to the automobile industry. Its traditional structure mainly has: and one end (tail wheel) of the support is provided with a main shaft of a driving motor, and the other end (head wheel) of the support is provided with a driven shaft. A chain transmission device is arranged between the main shaft and the driven shaft, a conveying trolley matched with a chain is arranged on the chain transmission device, the conveying trolley is used for conveying the automobile, and the conveying trolley circularly moves under the driving of the chain to convey the workpiece from the head wheel to the tail wheel. In order to make the circulation action of carrying the dolly, carrying the dolly can be in place the back at the tailwheel, overturn, the dolly turning device that current supporting set up mainly adopts the chain to press from both sides tight upset or thumb wheel, driving lever upset form, its structure is complicated, the both sides walking wheel upset precision that targets in place is poor, the card pause appears easily in the upset process, and be unfavorable for the installation, greatly reduced the rate of utilization of long-pending formula conveyer of putting, consequently, one of the problem that needs to solve is become urgent to the chain drive conveyer that provides one kind and can make the accurate upset of carrying the dolly.

Disclosure of Invention

The invention aims to provide a chain type transmission conveying device, and solves the problem that a conveying trolley cannot be accurately and stably turned over on the chain type transmission conveying device in the prior art.

The scheme is basically as follows: the utility model provides a chain drive conveyer, includes the support, be equipped with head pulley and tailwheel on the support, be connected with the chain between head pulley and the tailwheel, be connected with the transport trolley on the chain, fixedly connected with transition dish on chain drive conveyer's the main shaft, sliding connection has the shelves pole that can bulge transition dish terminal surface on the transition dish, last the opening of transport trolley have can with shelves pole complex mating holes, be equipped with toggle mechanism on the support, be connected with the link mechanism that intermittent type nature promoted shelves pole part and insert the mating holes between toggle mechanism and the shelves pole.

The principle and the beneficial effects of the invention are as follows: a driving motor of the chain transmission conveying device drives a chain to rotate, so that the chain drives the conveying trolley to convey along the chain, and when the main shaft conveys the conveying trolley through the chain, the rotating shaft synchronously drives the transition disc to rotate; when the conveying trolley rotates to the tail wheel, the deflector rod mechanism pushes the shift rod to slide along the transition disc through the connecting rod mechanism, one end of the shift rod is inserted into the matching hole, the other end of the shift rod is connected with the transition disc in a sliding mode, when the conveying trolley overturns at the tail wheel, the overturning of the conveying trolley is equal to the rotating angular speed of the main shaft, and the rotating angular speed of the transition disc is also equal to that of the main shaft.

Further, toggle mechanism includes fixed disk, sliding sleeve, cam and connecting rod, and fixed disk fixed connection is on the support, and sliding sleeve sliding connection is on the main shaft, and cam fixed connection is opened on the main shaft and the cam has the race, and the one end of connecting rod articulates on the shelves pole, the other end articulates on the sliding sleeve, is connected with on the fixed disk to be used for stirring the gliding piece of stirring of sliding sleeve, stirs the piece and is connected with the race.

Because the cam is fixedly connected to the main shaft, and the fixed disk is fixedly connected to the support, when the main shaft drives the cam to rotate, the cam and the fixed disk rotate relatively, the stirring part is connected with the wheel groove, and when the cam rotates, the connecting position of the stirring part and the wheel groove changes, so that the stirring part generates a stirring effect under the action of the wheel groove, and the stirring part generates a stirring effect on the sliding sleeve.

Furthermore, the poking piece comprises a transverse rod and a poking rod, the transverse rod is fixedly connected to the fixed disc, the poking rod is connected to the transverse rod in a sliding mode, one end of the poking rod is inserted into a wheel groove of the cam, and a push rod for poking the sliding sleeve to slide is fixedly connected to the poking rod.

Because one end of the shifting lever is inserted into the wheel groove, when the cam and the fixed disc rotate relatively, the matching position of the shifting lever and the wheel groove changes, and the shifting lever slides along the transverse rod under the action of the wheel groove, so that the pushing rod fixedly connected to the shifting lever moves, and the shifting of the sliding sleeve is realized when the pushing rod moves. In this scheme, the driving lever is sliding connection on the transverse bar, and the transverse bar has outrigger and limit function to the driving lever, prevents that the driving lever can't be stable for the cooperation with the race.

Furthermore, the transition disc is provided with guide holes arranged along the radial direction of the transition disc, and the stop lever is positioned in the guide holes.

Compare in the vertical setting of shelves pole, only can insert the cooperation hole with a grade pole when the transport trolley moves to the top of tailwheel, and be in the in-process that moves to the tailwheel at the transport trolley, a grade pole and cooperation hole become certain contained angle and can't insert in the cooperation hole for there is the restriction in the cooperation of a grade pole and cooperation hole. In this scheme, set up the guide hole into the radial direction along the transition dish for the shelves pole just can push into the mating holes with a grade pole at the delivery bogie conveying tailwheel in-process, promotes the cooperation flexibility ratio of a grade pole and mating holes.

Furthermore, the guide hole is a small-diameter section and a large-diameter section in a stepped hole shape, and the small-diameter section of the guide hole is close to the outer edge of the transition disc; the stop lever is fixedly connected with a flange, and the diameter of the flange is larger than the small-diameter section of the guide hole.

Compared with the structure that the blocking rod can slide in the guide hole at will, the blocking rod can easily slide out of the guide hole. In this scheme, set up the guide hole into the shoulder hole form including big footpath section and path section, and path section is close to the outer fringe of transition dish, and fixed connection flange on shelves pole to prevent that shelves pole roll-off is outside the guide hole.

Furthermore, a pressure spring is sleeved on the stop rod, the interface of the large-diameter section and the small-diameter section is a matching surface, and the pressure spring is positioned between the matching surface and the flange.

In the scheme, the interface of the large-diameter section and the small-diameter section is a matching surface, the stop rod is sleeved with the pressure spring, and the pressure spring is positioned between the matching surface and the flange, so that under the normal condition, the stop rod is positioned in the guide hole under the action of the pressure spring, and the influence on the conveying of the conveying trolley caused by the fact that one end of the stop rod protrudes out of the outer edge of the transition disc is prevented.

Further, the number of the guide holes is several.

Set up a plurality of guide holes, all set up shelves pole in every guide hole, a plurality of shelves poles provide a plurality of supports and spacing to the conveying trolley to further promote the precision and the stability of conveying trolley upset.

Furthermore, fixedly connected with keeps off the ring on the outer wall of sliding sleeve, and fixedly connected with pulls out on the push rod and inserts, keeps off the ring and is located to pull out and inserts.

The blocking ring is fixedly connected outside the sliding sleeve, the push rod is provided with a pulling and inserting part for pulling the blocking ring, the pulling and inserting part can be used for pulling and inserting the blocking ring, and meanwhile, even if the sliding sleeve rotates along with the main shaft, the pulling and inserting part can also well play a role in pulling the blocking ring.

Furthermore, a vertical plate which is right opposite to the side wall of the conveying trolley is fixedly connected to the support, side rollers are fixedly connected to the side wall of the conveying trolley, and the side rollers are in contact with the vertical plate.

The side idler wheels are fixed on the conveying trolley, the vertical plate is fixed on the support, when the side idler wheels move along with the conveying trolley, the side idler wheels slide along the vertical plate, and the vertical plate plays a limiting role in the conveying trolley, so that accurate and stable conveying of the conveying trolley is promoted.

Furthermore, two limiting sleeves are fixedly connected to the main shaft, the sliding sleeve is located between the two limiting sleeves, and a compression spring is arranged between the limiting sleeve and the sliding sleeve.

Through set up the stop collar on the main shaft, restrict the motion range of sliding sleeve, and set up compression spring between stop collar and sliding sleeve for the sliding sleeve is gentler and stable more at the slip in-process.

Drawings

Fig. 1 is a schematic view of a chain-type transmission transportation device according to an embodiment of the present invention (structures such as a transition plate, a fixed plate, and a sliding sleeve are not shown).

Fig. 2 is a partial left-side view of the tail wheel of fig. 1.

Fig. 3 is a cross-sectional view taken along a-a in fig. 2.

Fig. 4 is a cross-sectional view taken along line B-B of fig. 3.

Fig. 5 is a schematic view of the same position as that in fig. 2 in a second embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a head wheel 1, a tail wheel 2, a driving motor 3, a main shaft 4, a guide rail 5, a conveying trolley 6, a vertical plate 7, a side roller 8, a transition disc 9, a guide hole 10, a stop lever 11, a pressure spring 12, a fixed disc 13, a sliding sleeve 14, a cam 15, a baffle ring 16, a transverse lever 17, a deflector rod 18, a transverse slider 19, a push rod 20, a pull-plug 21, a radial slider 22, a connecting rod 23 and a limiting sleeve 24.

Example one

First embodiment as basically shown in fig. 1, fig. 2, fig. 3 and fig. 4, a chain transmission transportation device includes a support (not shown), a head pulley 1 and a tail pulley 2 which are located in the same horizontal plane are rotatably connected to the support, a chain is connected between the head pulley 1 and the tail pulley 2, a driving motor 3 for driving the chain to rotate is fixedly connected to the support through a bolt, and the specific manner for driving the chain to rotate by the driving motor 3 is as follows: fixedly connected with main shaft 4 on driving motor 3's the output shaft, tailwheel 2 passes through flat key fixed connection on main shaft 4, and driving motor 3 drive main shaft 4 rotates, makes main shaft 4 drive tailwheel 2 and rotates to make tailwheel 2 drive the chain and rotate.

Referring to fig. 1 and 2, two sides of a chain are provided with guide rails 5, the guide rails 5 are fixed on a support, and the chain is connected with a conveying trolley 6, in this embodiment, only a schematic diagram of the tail wheel 2 in fig. 1 near the left side is given, and the movement track of the conveying trolley 6 at the turning position of the head wheel 1 is similar to the movement track of the conveying trolley 6 at the tail wheel 2, and is not described again here; as shown in fig. 2, a guide rail 5 is provided with a guide and limiting rail for the conveying trolley 6, meanwhile, the guide rail 5 is provided with a vertical plate 7 which is vertically arranged through a screw fixedly connected with the vertical plate, the side wall of the conveying trolley 6 is provided with a connecting rod through a screw fixedly connected with the side roller 8 which is contacted with the inner side of the vertical plate 7 through a screw fixedly connected with the connecting rod.

As shown in fig. 3, a transition disk 9 is fixedly connected to the main shaft 4 through a flat key, a guide hole 10 arranged along the radial direction of the transition disk 9 is formed in a flange of the transition disk 9, the guide hole 10 is in a stepped hole shape with the diameter of the upper end smaller than that of the lower end, and a stop rod 11 is vertically connected in the guide hole 10 in a sliding manner; the upper end of the stop lever 11 can protrude out of the outer edge of the top of the transition disc 9; the side wall of the blocking rod 11 is integrally formed with a flange for preventing the blocking rod 11 from sliding out of the guide hole 10, a pressure spring 12 is sleeved between the flange and the stepped end surface of the guide hole 10, and the top end of the blocking rod 11 is pressed back into the guide hole 10 under the natural state of the pressure spring 12.

A shifting mechanism is arranged on the support, a link mechanism capable of intermittently pushing the blocking rod 11 to be partially inserted into the matching hole is connected between the shifting mechanism and the blocking rod 11, in the embodiment, the shifting mechanism comprises a fixed disc 13, a sliding sleeve 14 and a cam 15, as shown in fig. 2, the fixed disc 13 is fixedly connected to the support through a screw and is coaxially arranged with the transition disc 9, the sliding sleeve 14 is sleeved on the main shaft 4, the sliding sleeve 14 is positioned between the transition disc 9 and the fixed disc 13, a protrusion arranged along the axial direction of the main shaft 4 is fixedly connected to the main shaft 4 through a screw, a guide groove matched with the protrusion is formed in the inner wall of the sliding sleeve 14, the sliding sleeve 14 can slide along the axial direction of the main shaft 4 under the limiting action of the protrusion, and a blocking ring 16 is welded on the outer wall of the sliding sleeve 14; meanwhile, the cam 15 is fixedly connected to the left end face of the fixed disc 13 through a screw, and a wheel groove is formed in the cam 15; referring to fig. 4, a fixed disk 13 is connected with a toggle member for toggling the sliding sleeve 14 to slide, the toggle member includes a transverse rod 17 and a toggle lever 18, the transverse rod 17 is fixedly connected to the fixed disk 13 through a screw, the transverse rod 17 is arranged along the axial direction of the fixed disk 13, a transverse sliding slot is transversely arranged in the transverse rod 17, a transverse sliding block 19 is slidably connected in the transverse sliding slot, the top end of the toggle lever 18 is fixedly connected to the bottom of the transverse sliding block 19 through a screw, and the bottom end of the toggle lever 18 is inserted into the wheel slot; the left side of the transverse sliding block 19 is fixedly connected with a push rod 20 through a screw, a pull-plug 21 is welded on the push rod 20, the baffle ring 16 is positioned in the pull-plug 21, and when the transverse sliding block 19 transversely slides, the baffle ring 16 and the sliding sleeve 14 are pushed to transversely slide along the main shaft 4 through the push rod 20 and the pull-plug 21.

As shown in fig. 2, a radial sliding groove is formed in the right side wall of the transition disk 9 and is arranged along the radial direction of the transition disk 9, the radial sliding groove is located in the axial direction of the guide hole 10, a radial sliding block 22 is connected in the radial sliding groove in a sliding manner, the bottom end of the stop lever 11 is fixedly connected with the radial sliding block 22 through a screw, and the radial sliding block 22 is fixedly connected with a connecting plate through a screw; the connecting rod mechanism comprises a connecting rod 23, the right end of the connecting rod 23 is hinged with the outer wall of the sliding sleeve 14, and the left end of the connecting rod 23 is hinged with the connecting plate; meanwhile, referring to fig. 3, the conveying trolley 6 is provided with a matching hole, when the conveying trolley 6 moves to the top of the tail wheel 2, the stop lever 11 is in a state of being opposite to the matching hole, and the diameter of the stop lever 11 is slightly smaller than the aperture of the matching hole.

The specific implementation mode is as follows:

when the conveying trolley 6 is conveyed on the chain, the conveying power of the conveying trolley is derived from the driving motor 3, the driving motor 3 drives the main shaft 4 to rotate, so that the main shaft 4 rotates the chain through a connecting piece such as a gear, and the like, therefore, the conveying speed of the conveying trolley 6 is in a proportional relation with the rotating speed of the main shaft 4, the distance value of the conveying trolley 6 moving to the upper part of the tail wheel 2 and the rotating angle of the cam 15 driven by the main shaft 4 to rotate are reasonably controlled, so that when the conveying trolley 6 is just conveyed to the upper part of the tail wheel 2 (namely the position of the conveying trolley 6 in figure 2), the cam 15 rotates to drive the sheave to drive the deflector rod 18 to move to the right limit position, so that the deflector rod 18 pulls the sliding sleeve 14 to the right limit position through the transverse sliding block 19, the push rod 20 and the pull plug 21, the sliding sleeve 14 pulls the connecting plate and the radial sliding block 22 to slide along the axial direction of the transition disc 9 through the connecting rod 23, the top end of the gear lever 11 is slid into the guide hole 10, and at this time, the guide hole 10 and the mating hole are in a facing state (for how to realize the above control, the chain transmission device may be provided with a stopper to temporarily stop the transport trolley 6 in the chain transmission process, and then the controller controls the release time of the stopper, so that when the transport trolley 6 moves to the top of the tail pulley 2, the guide hole 10 and the mating hole are facing, the above control belongs to the prior art, and for example, how to control is specifically disclosed in the invention patent with the publication number of CN 104192483, and the details are not repeated here).

When the driving motor 3 continues to drive the main shaft 4 to rotate, the conveying trolley 6 can rotate along the radial direction of the main shaft 4, and the main shaft 4 drives the transition disc 9, the cam 15 and the conveying trolley 6 to rotate simultaneously, so that the rotating angular speeds of the conveying trolley 6 and the transition disc 9 are equal, and in the overturning process of the conveying trolley 6, the guide hole 10 and the matching hole are always in a positive rail state. When the main shaft 4 drives the transition disc 9 to rotate, the cam 15 can rotate synchronously with the main shaft 4, because the fixed disc 13 is fixedly connected to the bracket, the fixed disc 13 cannot rotate along with the main shaft 4, when the cam 15 rotates, the matching position of the deflector rod 18 and the wheel groove changes, the wheel groove can push the deflector rod 18 to slide towards the direction close to the transition disc 9, when the deflector rod 18 slides, the deflector rod slides towards the direction close to the transition disc 9 through the deflector ring 16 and the sliding sleeve 14, the sliding sleeve 14 pushes the connecting rod to rotate, so that the connecting rod 23 pushes the connecting plate and the radial sliding block 22 to slide along the radial sliding groove, the sliding direction of the radial sliding block 22 slides towards the flange direction of the transition disc 9, finally, the radial sliding block 22 pushes the blocking rod 11 to slide out of the guide hole 10, the blocking rod 11 is inserted into the matching hole of the conveying trolley 6, and the blocking rod 11 provides support and limit in the overturning process of the conveying trolley 6, thereby ensuring that the conveying trolley 6 can be accurately controlled in the overturning process.

Meanwhile, in the embodiment, a specific arrangement mode of the wheel groove is not given, and only when the shift lever 18 moves to the right limit position as shown in fig. 2, under the action of the shift lever 18, the shift lever 11 just moves to the state that the top end enters the guide hole 10, in the embodiment, the speed change condition when the shift lever 18 slides along the axis of the main shaft 4 can be controlled by controlling the change curvature of the wheel groove, for example, when the conveying trolley 6 starts to turn over, the curvature of the wheel groove can be set as large as possible, so that the shift lever 11 can quickly move out of the guide hole 10 and be inserted into the matching hole, and the shift lever 11 can quickly play a role of limiting and supporting the conveying trolley 6; after the conveying trolley 6 is turned to the bottom of the tail wheel 2, when the wheel groove drives the connecting rod 23 to pull the blocking rod 11 to slide back to the guide hole 10, the curvature of the corresponding section of the wheel groove can be set as large as possible, so that the blocking rod 11 can be quickly returned to the guide hole 10, and the guide hole 10 and the conveying trolley 6 can be conveniently separated, which should be regarded as the protection scope of the invention.

Example two

The difference between the second embodiment and the first embodiment is that: as shown in fig. 5, two stop sleeves 24 are fixedly connected to the main shaft 4 by screws, the sliding groove is located between the two stop sleeves 24, the stop sleeves 24 are used for limiting the sliding of the sliding sleeve 14, and a compression spring (not shown in the figure) is arranged between the stop sleeves 24 and the sliding sleeve 14, so that the sliding process of the sliding sleeve 14 is more gradual and stable.

EXAMPLE III

The difference between the third embodiment and the second embodiment is that: the quantity of guide hole 10 is two, all is equipped with shelves pole 11 in every guide hole 10, and the quantity correspondence of connecting rod 23 sets up to two, and every connecting rod 23 drives a shelves pole 11 and slides to make transport trolley 6 can receive two support and spacing that shelves pole 11 in the upset in-process, further promote transport trolley accuracy and stability in the upset process.

The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a chain drive conveyer, includes the support, is equipped with head pulley and tailwheel on the support, be connected with the chain between head pulley and the tailwheel, be connected with transport trolley, its characterized in that on the chain: a transition disc is fixedly connected to a main shaft of the chain type transmission conveying device, a stop lever capable of protruding out of the end face of the transition disc is connected to the transition disc in a sliding mode, a matching hole capable of being matched with the stop lever is formed in the conveying trolley, a shifting mechanism is arranged on the support, and a link mechanism capable of pushing the stop lever to be partially inserted into the matching hole intermittently is connected between the shifting mechanism and the stop lever; the shifting mechanism comprises a fixed disc, a sliding sleeve and a cam, the fixed disc is fixedly connected to the support, the sliding sleeve is connected to the main shaft in a sliding mode, the cam is fixedly connected to the main shaft, and a wheel groove is formed in the cam; the connecting rod mechanism comprises a connecting rod, one end of the connecting rod is hinged to the blocking rod, the other end of the connecting rod is hinged to the sliding sleeve, the fixed disc is connected with a stirring piece for stirring the sliding sleeve to slide, and the stirring piece is connected with the wheel groove; the shifting piece comprises a transverse rod and a shifting rod, the transverse rod is fixedly connected to the fixed disc, the shifting rod is connected to the transverse rod in a sliding mode, one end of the shifting rod is inserted into the wheel groove, and a push rod used for shifting the sliding sleeve to slide is fixedly connected to the shifting rod; fixedly connected with keeps off the ring on the outer wall of sliding sleeve, fixedly connected with pulls out on the push rod and inserts, keep off the ring and be located to pull out and insert.

2. A chain driven conveyor as in claim 1 wherein: the transition disc is provided with guide holes arranged along the radial direction of the transition disc, and the stop lever is positioned in the guide holes.

3. A chain driven conveyor as claimed in claim 2 wherein: the guide hole is a small-diameter section and a large-diameter section in a stepped hole shape, and the small-diameter section of the guide hole is close to the outer edge of the transition disc; the stop lever is fixedly connected with a flange, and the diameter of the flange is larger than the small-diameter section of the guide hole.

4. A chain driven conveyor as claimed in claim 3 wherein: the stop lever is sleeved with a pressure spring, the interface of the large-diameter section and the small-diameter section is a matching surface, and the pressure spring is positioned between the matching surface and the flange.

5. A chain driven conveyor as claimed in claim 4, wherein: the number of the guide holes is several.

6. A chain driven conveyor as claimed in claim 5, wherein: the side roller type conveying trolley is characterized in that a vertical plate which is opposite to the side wall of the conveying trolley is fixedly connected to the support, a side roller is fixedly connected to the side wall of the conveying trolley, and the side roller is in contact with the vertical plate.

7. A chain driven conveyor as claimed in claim 6 wherein: the spindle is fixedly connected with two limiting sleeves, the sliding sleeve is located between the two limiting sleeves, and a compression spring is arranged between the limiting sleeve and the sliding sleeve.