CN218950219U

CN218950219U - Balancing device for license plate

Info

Publication number: CN218950219U
Application number: CN202320660707.XU
Authority: CN
Inventors: 王文波; 牟晓东; 曲耀盈
Original assignee: Weifang Changwei Traffic Engineering Co ltd
Current assignee: Weifang Changwei Traffic Engineering Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-05-02
Anticipated expiration: 2033-03-30

Abstract

The utility model is suitable for the field of conveying devices, and provides a license plate conveying balancing device, which comprises an adjusting shaft connected with a tray and a balancing weight arranged at the end part of the adjusting shaft; the balance weight comprises an annular installation part and an eccentric part arranged at one side of the installation part; the mounting part is sleeved on the adjusting shaft; the mounting part and the adjusting shaft are subjected to steering positioning through a first positioning structure and axial positioning through a second positioning structure, so that the tray is subjected to directional adjustment through the balance weight, the equipment is simple in structure and low in processing cost, and the service life of the equipment is long due to small abrasion among parts.

Description

Balancing device for license plate

Technical Field

The utility model relates to the field of conveying devices, in particular to a license plate conveying balancing device.

Background

Referring to fig. 1 to 4, in the number plate processing process, there is a device for delivering and caching the number plate in a conveying state, which is mainly used for adjusting the positions of the number plates with conveying positions not corresponding to scanning positions. Wherein the apparatus includes a pallet 100 driven by a chain and performing a lifting operation; the number plate is lifted and lowered through the tray 100, the tray 100 is required to be kept horizontal all the time in the lifting process of the tray 100, otherwise the number plate can fall from the tray 100, in the device, the balancing mechanism is realized by utilizing a plurality of groups of balancing wheels 200 fixedly connected with the tray 100 and balancing plates 300, and in the working process, the balancing wheels 200 can be matched with the balancing plates 300 which are arranged on the rack and internally provided with arc-shaped tracks to realize the position positioning of the tray 100.

However, the above-described balance structure has the following drawbacks: on the one hand, the arc-shaped rail of the balance plate 300 is not well processed, the processing precision is high, and special processing equipment needs to be adopted, so that the processing cost is high. On the other hand, after the apparatus is used for a long time, the inner edge of the arc track is worn, so that the balance wheel 200 and the balance plate 300 are in error fit, and the tray 100 is finally offset.

In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide the license plate conveying balancing device which realizes the directional adjustment of the tray through the balancing weight, has simple equipment structure and low processing cost, and has long equipment service time due to small abrasion among parts.

In order to achieve the above purpose, the utility model provides a license plate conveying balance device, which comprises an adjusting shaft connected with a tray and a balance weight arranged at the end part of the adjusting shaft; the balance weight comprises an annular installation part and an eccentric part arranged at one side of the installation part; the mounting part is sleeved on the adjusting shaft; the mounting part and the adjusting shaft are subjected to steering positioning through a first positioning structure, and are subjected to axial positioning through a second positioning structure.

According to the license plate conveying balance device, the first positioning structure comprises a key groove arranged on the adjusting shaft and a protrusion arranged on the inner edge of the mounting part and matched with the key groove.

According to the license plate conveying balancing device, the second positioning structure comprises a positioning shaft shoulder arranged at one end of the key slot, a thread structure arranged at the other end of the key slot and a positioning screw sleeve screwed at the end part of the adjusting shaft; after installation, the working end of the positioning screw sleeve is in compression contact with the end part of the installation part.

According to the license plate conveying balancing device, the eccentric part is of a symmetrical structure.

According to the license plate conveying balance device, the bottom end of the eccentric part is provided with the mounting groove which is perpendicular to the symmetry axis of the eccentric part and the regulating block which is arranged in the mounting groove and moves along the direction of the mounting groove; after the adjustment is completed, the adjustment block is locked in position in the mounting groove through a third positioning assembly.

According to the license plate conveying balance device, the third positioning component comprises a strip-shaped groove, a through hole and a locking bolt, the strip-shaped groove is arranged at the side end of the eccentric part, the extension direction of the strip-shaped groove is parallel to that of the mounting groove, the through hole is arranged on the adjusting block and corresponds to the strip-shaped groove, and the locking bolt is arranged in the through hole; during locking, the side ends of the bolt cap and the bolt head of the locking bolt are in pressing contact with the side ends of the eccentric part.

The utility model provides a license plate conveying balancing device, which comprises an adjusting shaft connected with a tray and a balancing weight arranged at the end part of the adjusting shaft; the balance weight comprises an annular installation part and an eccentric part arranged at one side of the installation part; the mounting part is sleeved on the adjusting shaft; the steering positioning of the mounting part and the adjusting shaft is realized through a first positioning structure, and the axial positioning of the mounting part and the adjusting shaft is realized through a second positioning structure, and the first positioning structure comprises a key groove arranged on the adjusting shaft and a protrusion arranged on the inner edge of the mounting part and matched with the key groove. At this time, the eccentric part can drive the adjusting shaft to rotate relative to the supporting frame under the action of self gravity, so that the supporting tray is always in a horizontal state. The utility model realizes the directional adjustment of the tray through the balance weight, has simple equipment structure and low processing cost, and has long service life due to small abrasion among parts.

Drawings

FIG. 1 is a schematic diagram of a prior art intelligent number plate conveying device; FIG. 2 is a partial cross-sectional view of FIG. 1; FIG. 3 is a schematic structural view of a balance plate of a prior art balance mechanism; FIG. 4 is a diagram showing the connection between a conventional balancing mechanism and a tray; FIG. 5 is a block diagram of a support frame and a drive chain; FIG. 6 is a block diagram of the present application; FIG. 7 is an exploded view of FIG. 6; FIG. 8 is another operating state diagram of the adjustment block of FIG. 6;

in the figure, 100-tray, 111-driving roller, 1-adjusting shaft, 11-keyway, 12-protrusion, 13-positioning shaft shoulder, 14-positioning screw sleeve, 200-balance wheel, 201-spider, 202-gear, 203-driving chain, 2-balance block, 21-installation part, 22-eccentric part, 300-balance plate, 500-supporting frame, 600-positioning plate, 501-clamping plate, 502-roller, 503-connecting block, 31-installation groove, 4-adjusting block, 51-bar groove, 52-through hole, 53-locking bolt.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and examples, it being understood that the specific examples described herein are for illustration only and are not intended to limit the present utility model.

Referring to fig. 1, the existing intelligent number plate conveying equipment comprises a roller type transmission mechanism and a conveying structure matched with the roller type transmission mechanism;

the roller type transmission mechanism comprises a plurality of transmission rollers 111 which are fixed in position and driven by an external driving assembly to rotate; the drive assembly is rotated by driving the driving roller 111 to effect the transmission of the number plate (this roller transmission mechanism is a well known technique to those skilled in the art and is referred to in most devices, for example in CN202022743496.5, a roller conveyor named a conveying stack, and is therefore not described in any greater detail in this application).

Referring to fig. 2, there are gaps between the several driving rollers 111; the conveying structure comprises a tray 100 which is driven by a lifting structure to move along a vertical elliptic track and is always in a horizontal state; the tray 100 includes a plurality of gear inserts that can pass through the gap. When the position error of the number plate is found (the detection of the position of the number plate can be detected by a visual sensor, which is a conventional technology), the tray 100 passes through the gap between the driving rollers 111 from bottom to top and temporarily supports the number plate positioned on the driving rollers 111, and is temporarily arranged above the driving rollers, when the gap between the number plates on the driving rollers 111 is larger, the tray 100 descends to replace the temporarily stored number plate on the driving rollers 111, the placed number plate fills the gap, and the position adjustment of the number plate is realized.

The lifting structure comprises a conveying support 201, a gear set vertically arranged on the conveying support 201 and a transmission chain 203 sleeved on the gear set; in this example, the gear set is made up of two sets of gears 202, and at least one set of gears is connected to a drive motor; the transmission chain 203 is provided with a supporting frame 500 for supporting the tray 100, the end part of the tray 100 is provided with an adjusting shaft 1, and the adjusting shaft 1 is rotatably connected with the supporting frame 500. When the tray 100 performs the cyclic transmission, the driving motor drives the gear set to rotate and further drives the transmission chain 203 to perform the transmission, and the supporting frame 500 is further driven by the transmission chain 203 and performs the cyclic transmission according to the track thereof.

Referring to fig. 2 and 4, a positioning structure for positioning along the direction of the adjusting shaft 1 is disposed between the supporting frame 500 and the delivering frame 201; the positioning structure ensures the position positioning of the supporting frame 500 and the conveying support 201, and avoids driving the supporting frame 500 to drive the transmission chain 203 to separate from the gear set under the action of the gravity of the tray 100.

The positioning structure comprises a positioning plate 600 arranged in the spider 201; the supporting frame 500 comprises two clamping plates 501 which are symmetrically arranged; a positioning space for matching with the positioning plate 600 is formed between the two clamping plates 501; referring to fig. 5, two clamping plates 501 are fixedly connected with the chain shaft of the transmission chain 203 through a connecting block 503. When the transmission chain 203 drives the support frame 500 to transmit, the positioning plate 600 is always arranged in the positioning space formed by the two clamping plates 501, so that the support frame 500 is positioned under the condition that the normal transmission of the support frame 500 is not affected.

Further, a roller 502 contacting with the positioning plate 600 is disposed at a side end of the supporting frame 500. During positioning, the roller 502 contacts with the positioning plate 600, so that the driving friction force between the support frame 500 and the positioning plate 600 is reduced.

Referring to fig. 6, the present utility model provides a license plate transferring balancing device, which includes an adjusting shaft 1 connected with a tray 100 and a balancing weight 2 mounted at the end of the adjusting shaft 1; the weight 2 always faces downwards under the action of self gravity (the working direction of the weight 2 is not changed because the gravity direction is unchanged) when the weight 2 works, so that the above characteristics set the gravity direction of the weight 2 and the horizontal direction of the tray 100, and the orientation positioning of the tray 100 can be realized through the weight 2.

Referring to fig. 6 and 7, specifically, the balance weight 2 includes a circular mounting portion 21 and an eccentric portion 22 disposed at one side of the mounting portion 21; the mounting part 21 is sleeved on the adjusting shaft 1; the mounting part 21 and the adjusting shaft 1 realize the steering positioning of the two through a first positioning structure and realize the axial positioning of the two through a second positioning structure. In this example, the first positioning structure includes a key slot 11 provided on the adjusting shaft 1 and a protrusion 12 provided on an inner edge of the mounting portion 21 and adapted to the key slot 11. Under the positioning action of the protrusion 12 and the key groove 11, when the angle of the support frame 500 is changed under the driving of the transmission chain 203 (the transmission chain 203 drives the support frame 500 to change when at the upper end and the lower end of the elliptical transmission track), at this time, the eccentric part 22 drives the adjusting shaft 1 to rotate relative to the support frame 500 under the action of self gravity, so that the support tray 100 is always in a horizontal state.

Of course, the first positioning structure is not limited to the above structure, and a positioning structure such as a single key or a spline may be used.

The second positioning structure comprises a positioning shaft shoulder 13 arranged at one end of the key slot 11, a thread structure arranged at the other end of the key slot 11 and a positioning screw sleeve 14 screwed at the end part of the adjusting shaft 1; after installation, the working end of the set screw 14 is in pressing contact with the end of the mounting portion 21. The axis of the installation part 21 on the adjusting shaft 1 is positioned through the second positioning structure, so that the balance weight 2 is prevented from being separated from the adjusting shaft 1 during normal operation.

The eccentric portion 22 has a symmetrical structure, and in this example, the eccentric portion 22 has a triangular structure, but other shapes, such as a square structure, a trapezoid structure, etc., may be used.

Since the accuracy of the processing of the key slot 11 directly affects the connection between the positioning direction of the balance weight 2 and the horizontal direction of the tray 100 (in general, if the key slot 11 has a processing error, the balance weight 2 cannot be guaranteed to always drive the tray 100 to be in a horizontal state), the present application is improved in that the bottom end of the eccentric portion 22 is provided with a mounting groove 31 perpendicular to the symmetry axis thereof and an adjusting block 4 mounted in the mounting groove 31 and moving along the direction of the mounting groove 31; after the adjustment, the adjustment block 4 is locked in position in the mounting groove 31 by a third positioning member. By adjusting the position of the adjusting block 4, the adjustment of the gravity center direction of the balance block 2 is achieved, and when the adjusting block 4 is at the left end position of the mounting groove 31, see fig. 8, the gravity center direction of the balance block 2 is at the left side, otherwise, the opposite is true. Through the structure, the gravity center direction of the balance weight 2 can be adjusted, so that the eccentric error of the balance weight 2 is reduced.

The third positioning component comprises a bar-shaped groove 51 which is arranged at the side end of the eccentric part 22 and has the extending direction parallel to the extending direction of the mounting groove 31, a through hole 52 which is arranged on the adjusting block 4 and corresponds to the bar-shaped groove 51, and a locking bolt 53 which is arranged in the through hole 52; during locking, the side end of the bolt cap and the side end of the bolt head of the locking bolt 53 are in pressing contact with the side end of the eccentric part 22, so that the pressing and locking of the adjusting block 4 are realized. When adjusting the adjusting block 4, the locking bolt 53 is first unscrewed, then the adjusting block 4 is moved to a predetermined position of the mounting groove 31, and finally the locking bolt 53 is locked.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The license plate conveying balancing device is characterized by comprising an adjusting shaft connected with a tray and a balancing weight arranged at the end part of the adjusting shaft;

the balance weight comprises an annular installation part and an eccentric part arranged at one side of the installation part;

the mounting part is sleeved on the adjusting shaft; the mounting part and the adjusting shaft are subjected to steering positioning through a first positioning structure, and are subjected to axial positioning through a second positioning structure.

2. The license plate conveying balance device according to claim 1, wherein the first positioning structure comprises a key groove arranged on the adjusting shaft and a protrusion arranged at the inner edge of the mounting part and matched with the key groove.

3. The license plate conveying balance device according to claim 2, wherein the second positioning structure comprises a positioning shaft shoulder arranged at one end of the key slot, a thread structure arranged at the other end of the key slot and a positioning screw sleeve screwed at the end part of the adjusting shaft;

after installation, the working end of the positioning screw sleeve is in compression contact with the end part of the installation part.

4. The license plate transferring balance device according to any one of claims 1 to 3, wherein the eccentric portion is of a symmetrical structure.

5. The license plate conveying balance device according to claim 4, wherein the bottom end of the eccentric part is provided with a mounting groove which is perpendicular to the symmetry axis of the eccentric part and an adjusting block which is arranged in the mounting groove and moves along the direction of the mounting groove;

after the adjustment is completed, the adjustment block is locked in position in the mounting groove through a third positioning assembly.

6. The license plate conveying balance device according to claim 5, wherein the third positioning component comprises a bar-shaped groove which is arranged at the side end of the eccentric part and has an extending direction parallel to the extending direction of the mounting groove, a through hole which is arranged on the adjusting block and corresponds to the bar-shaped groove, and a locking bolt which is arranged in the through hole;

during locking, the side ends of the bolt cap and the bolt head of the locking bolt are in pressing contact with the side ends of the eccentric part.