CN219822532U - Gear rack transmission jacking reversing mechanism and four-way shuttle - Google Patents
Gear rack transmission jacking reversing mechanism and four-way shuttle Download PDFInfo
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- CN219822532U CN219822532U CN202321041789.6U CN202321041789U CN219822532U CN 219822532 U CN219822532 U CN 219822532U CN 202321041789 U CN202321041789 U CN 202321041789U CN 219822532 U CN219822532 U CN 219822532U
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- vehicle body
- gear
- car body
- reversing mechanism
- jacking
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- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- 230000001174 ascending effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a gear rack transmission jacking reversing mechanism and a four-way shuttle vehicle, wherein the jacking reversing mechanism comprises a lower vehicle body, an upper vehicle body and a jacking assembly; the upper car body can move up and down relative to the lower car body through gear-rack transmission, and the reversing action and the jacking action can be realized through the driving of the gear-rack.
Description
Technical Field
The utility model relates to the technical field of automatic walking shuttles, in particular to a lifting reversing mechanism of a shuttle and the shuttle with the lifting reversing mechanism.
Background
In the warehouse system, the goods are carried by adopting the reversing four-way shuttle which can walk on the main road and the sub road which are mutually perpendicular. As shown in the CN 111646088A patent application, a heavy four-way shuttle of the prior art is disclosed. In the shuttle, the operation of reversing the two groups of wheels is as follows: through the rotation of the hollow cam, the arc-shaped groove in the hollow cam is matched with the movable rod to realize lifting motion of the upper frame relative to the lower frame, so that the relative lifting between the first group of wheels and the second group of wheels is realized, and the reversing is completed. Meanwhile, in order to realize the lifting action of cargoes, an outer cam coaxially arranged with the hollow cam is adopted in the patent application to be matched with a lifting wheel below a lifting plate (an upper frame), and the lifting plate is lifted or lowered through a cam principle when the outer cam rotates.
The hollow cam and the coaxial outer cam in the shuttle can realize the reversing of two groups of wheels and the lifting of the lifting plate, but from the perspective of realizing the integral structure by reversing and lifting, the two transverse sides of the vehicle body are required to be provided with the hollow cam and the coaxial outer cam structure, the structure is complex, the hollow cam and the coaxial outer cam both need the installation space in the vehicle, the integral occupied space of the structure is larger, and the structure is difficult to be applied to the miniaturized shuttle.
Therefore, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The utility model provides a gear rack transmission jacking reversing mechanism, which is used for solving the technical problem that the whole jacking reversing structure occupies a larger space because the reversing and jacking actions are respectively realized by adopting an inner eccentric cam and an outer eccentric cam in the prior art.
The utility model also provides a four-way shuttle vehicle using the jacking reversing structure.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a gear rack transmission jacking reversing mechanism comprises a lower vehicle body, an upper vehicle body borne on the lower vehicle body, a jacking plate borne on the upper vehicle body and a jacking bearing assembly for supporting the jacking plate; the two sides of the lower vehicle body are provided with a plurality of first wheels, and the two ends of the upper vehicle body are provided with a plurality of second wheels; the wheel axis in the first wheel is perpendicular to the wheel axis in the second wheel; the upper vehicle body comprises end plates positioned at two ends, two grooves which extend up and down and penetrate through the end plates inside and outside are arranged in the middle position of each end plate, racks which extend up and down are respectively arranged at two sides of the positions where the two grooves are positioned on the end plates, two gears and a driving device for driving the gears to rotate are respectively arranged at two ends of the lower vehicle body, the two gears are meshed with the two racks in a one-to-one correspondence manner, and gear shafts of the two gears are respectively corresponding to the two grooves in a one-to-one correspondence manner and penetrate through the grooves; the gear rotates to drive the rack and the upper vehicle body to move up and down, and when the upper vehicle body is in a low position relative to the lower vehicle body, the bottom of a second wheel of the upper vehicle body is lower than the bottom of a first wheel of the lower vehicle body; when the upper vehicle body rises to a first rising position relative to the lower vehicle body, the second wheel bottom of the upper vehicle body is higher than the first wheel bottom of the lower vehicle body; when the upper car body continuously ascends from the first ascending position relative to the lower car body, the jacking plate is jacked up.
Further, the gear shaft moves up and down in the slot; when the upper car body is at a low position relative to the lower car body, the gear shaft is abutted against the topmost end of the slot, and when the lower car body moves to a highest position relative to the upper car body, the gear shaft is abutted against the bottommost end of the slot.
Further, the two gears at one end are meshed with each other transversely, one gear is a first driving gear, and the other gear is a first driven gear.
Further, a motor reducer assembly for driving the driving gear to rotate is arranged in the lower vehicle body, and a gear shaft of the driving gear is coaxially connected with an output shaft of the motor reducer assembly.
Further, two gears at the other end are also transversely meshed with each other, one gear is a second driving gear, the other gear is a second driven gear, an output shaft of the motor reducer assembly is connected with a gear shaft of the second driving gear through a belt pulley structure, and the motor reducer assembly drives the first driving gear and the second driving gear to rotate simultaneously.
Further, the jacking bearing component comprises a sleeve and a guide post matched with the sleeve, wherein the sleeve is positioned at two ends of the upper vehicle body, the lower half part of the guide post is positioned in the sleeve, the upper end of the guide post is connected with the bottom surface of the jacking plate, the upper end of the guide post is provided with a round table matched with the top surface of the sleeve, when the upper vehicle body is positioned at a low position relative to the lower vehicle body, the sleeve descends relative to the guide post, and the jacking plate is positioned at an initial position; when the upper car body is in a first lifting position relative to the lower car body, the sleeve is lifted relative to the guide post but does not lift the round table upwards, and the lifting plate is still in an initial position; when the upper car body continuously ascends from the first ascending position relative to the lower car body, the sleeve ascends and upwards lifts the round table and the lifting plate, and the lifting plate ascends to the lifting position.
The beneficial effects are that: compared with the prior art, the upper car body can move up and down relative to the lower car body through gear-rack transmission, and the reversing action and the jacking action can be realized through the driving of the gear-rack, so that an independent reversing mechanism and an independent jacking driving mechanism are not required to be arranged as in the prior art, and the whole occupied space of the mechanism provided by the utility model is less.
The four-way shuttle provided by the utility model is provided with the gear rack transmission jacking reversing mechanism.
Drawings
Fig. 1 is a perspective view of a four-way shuttle of the present utility model.
Fig. 2 is a schematic structural view of a lifting reversing mechanism used in the four-way shuttle, and shows a state in which an upper vehicle body is lowered to a low position relative to a lower vehicle body.
Fig. 3 is a schematic structural view of a lifting reversing mechanism used in the four-way shuttle, and shows a state when the upper vehicle body is lifted to a first lifting position relative to the lower vehicle body.
Fig. 4 is a schematic structural view of a lifting reversing mechanism employed in the four-way shuttle, and shows a state in which an upper vehicle body is lifted to a lifting position of a lifting plate relative to a lower vehicle body.
Detailed Description
Referring to fig. 2, the utility model discloses a rack and pinion transmission jacking reversing mechanism. The jacking reversing mechanism is applied to the four-way shuttle shown in fig. 1.
As shown in fig. 2, the rack and pinion drive lifting reversing mechanism comprises a lower vehicle body 1, an upper vehicle body 2 borne on the lower vehicle body 1, a lifting plate 3 borne on the upper vehicle body 2, and a lifting bearing assembly 4 for supporting the lifting plate 3. A plurality of first wheels 11 are arranged on two sides of the lower vehicle body 1. The upper vehicle body 2 is provided with a plurality of second wheels 21 at both ends. The wheel axis in the first wheel 11 is perpendicular to the wheel axis in the second wheel 21 so that the shuttle can move in two directions perpendicular to each other. Specifically, when the bottom of the first wheel 11 is lower than the second wheel 21, the first wheel 11 is grounded, the shuttle moves in the rolling direction of the first wheel 11, and when the second wheel 21 is lower than the first wheel 11, the second wheel 21 is grounded, and the shuttle moves in the rolling direction of the second wheel 21.
The upper car body 2 comprises end plates 22 at two ends, and two grooves 23 extending up and down and penetrating through the end plates from inside to outside are arranged at the middle position on each end plate 22. The end plate 22 is provided with racks 24 extending up and down on both sides of the position where the two grooves 23 are located, respectively.
Two gears are respectively arranged at two ends of the lower vehicle body 1, and in the embodiment, a mode that one driving gear is matched with one driven gear is adopted. As shown in fig. 1 and fig. 2, the two gears at one end are meshed with each other transversely, one gear is a first driving gear 12, and the other gear is a first driven gear 13. The two gears at the other end are also meshed with each other transversely, one gear is a second driving gear 14, and the other gear is a second driven gear 15. A motor reducer assembly 16 is provided in the lower vehicle body 1. The motor reducer assembly output shaft is coaxially connected with the first driving gear 12 and directly drives the first driving gear 12 to rotate. The gear shaft 17 of the second drive gear 14 is connected to the motor reducer assembly output shaft via a pulley arrangement 18. The motor reducer assembly 16 simultaneously rotates the first and second drive gears 12 and 14.
Taking two gears at one end as an example, the two gears, namely the first driving gear 12 and the first driven gear 13 are meshed with the two racks 24 in a one-to-one correspondence manner, and gear shafts of the first driving gear 12 and the first driven gear 13 are respectively in one-to-one correspondence with the two slots 23 and penetrate through the slots 23.
The jacking bearing assembly 4 comprises a sleeve 41 and a guide post 42, wherein the sleeve 41 is arranged at two ends of the upper vehicle body 2, the guide post 42 is matched with the sleeve 41, the lower half part of the guide post 42 is arranged in the sleeve 41, and the upper end of the guide post 42 is connected with the bottom surface of the jacking plate 3. The upper end of the guide post 42 is provided with a round table 43 matched with the top surface of the sleeve 41.
The structure of the above embodiment drives the rack 24 and the upper vehicle body 2 to move up and down by the rotation of the gear.
As shown in fig. 2, when the upper body 2 is in a low position with respect to the lower body 1, the bottom of the second wheels 21 of the upper body 2 is lower than the bottom of the first wheels 11 of the lower body 1. At this time, the gear shaft abuts against the topmost end of the slot 23, and the slot plays a role in limiting the relative movement of the upper and lower vehicle bodies. At this time, the sleeve 41 is lowered relative to the guide post 42, and the jacking plate 3 is positioned at the initial position, that is, the jacking plate 3 does not have a jacking operation.
As shown in fig. 3, the upper vehicle body 2 is raised to the first raised position with respect to the lower vehicle body 1. The bottom of the second wheel 21 of the upper body 2 is higher than the bottom of the first wheel 11 of the lower body 1, and the reversing operation is completed. At this time, the sleeve 41 is lifted up relative to the guide post 42, but the sleeve 41 does not lift up the round table 43, and the lift plate 3 is still at the initial position, i.e., the lift plate 3 does not lift up.
As shown in fig. 4, when the upper vehicle body 2 continues to rise from the first rising position with respect to the lower vehicle body 1, the lifting plate 3 is lifted up, and the lifting plate 3 is lifted up to the lifting position to perform the lifting operation. At this time, the gear shaft abuts against the lowermost end of the slot 34, and the lower vehicle body 2 moves to the highest position with respect to the upper vehicle body 3.
A return spring may also be provided in the sleeve 41, by means of which the guide post 42 together with the lifting plate 3 can be pulled back down to the initial position after the lower body 1 has been lowered again relative to the upper body 2. The structure of the return spring is a conventional means in the art and will not be described in detail herein.
There are many ways in which the utility model may be embodied, and the above description is only of a preferred embodiment of the utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be comprehended within the scope of the present utility model. The components not explicitly described in this embodiment can be implemented by using the prior art.
Claims (7)
1. A gear rack transmission jacking reversing mechanism comprises a lower vehicle body, an upper vehicle body borne on the lower vehicle body, a jacking plate borne on the upper vehicle body and a jacking bearing assembly for supporting the jacking plate; the two sides of the lower vehicle body are provided with a plurality of first wheels, and the two ends of the upper vehicle body are provided with a plurality of second wheels; the wheel axis in the first wheel is perpendicular to the wheel axis in the second wheel;
the method is characterized in that: the upper vehicle body comprises end plates positioned at two ends, two grooves which extend up and down and penetrate through the end plates inside and outside are arranged in the middle position of each end plate, racks which extend up and down are respectively arranged at two sides of the positions where the two grooves are positioned on the end plates, two gears and a driving device for driving the gears to rotate are respectively arranged at two ends of the lower vehicle body, the two gears are meshed with the two racks in a one-to-one correspondence manner, and gear shafts of the two gears are respectively corresponding to the two grooves in a one-to-one correspondence manner and penetrate through the grooves;
the gear rotates to drive the rack and the upper vehicle body to move up and down, and when the upper vehicle body is in a low position relative to the lower vehicle body, the bottom of a second wheel of the upper vehicle body is lower than the bottom of a first wheel of the lower vehicle body;
when the upper vehicle body rises to a first rising position relative to the lower vehicle body, the second wheel bottom of the upper vehicle body is higher than the first wheel bottom of the lower vehicle body;
when the upper car body continuously ascends from the first ascending position relative to the lower car body, the jacking plate is jacked up.
2. The rack and pinion jack reversing mechanism of claim 1, wherein: the gear shaft moves up and down in the slot; when the upper car body is at a low position relative to the lower car body, the gear shaft is abutted against the topmost end of the slot, and when the lower car body moves to a highest position relative to the upper car body, the gear shaft is abutted against the bottommost end of the slot.
3. The rack and pinion jack reversing mechanism of claim 2, wherein: the two gears at one end are transversely meshed with each other, one gear is a first driving gear, and the other gear is a first driven gear.
4. A rack and pinion jack reversing mechanism according to claim 3, wherein: and a motor reducer assembly for driving the driving gear to rotate is arranged in the lower vehicle body, and a gear shaft of the driving gear is coaxially connected with an output shaft of the motor reducer assembly.
5. The rack and pinion jack reversing mechanism of claim 4, wherein: the two gears at the other end are also transversely meshed with each other, one gear is a second driving gear, the other gear is a second driven gear, an output shaft of the motor reducer assembly is connected with a gear shaft of the second driving gear through a belt pulley structure, and the motor reducer assembly drives the first driving gear and the second driving gear to rotate simultaneously.
6. The rack and pinion jack reversing mechanism of claim 1, wherein: the jacking bearing component comprises a sleeve at two ends of the upper vehicle body and a guide post matched with the sleeve, the lower half part of the guide post is positioned in the sleeve, the upper end of the guide post is connected with the bottom surface of the jacking plate, the upper end of the guide post is provided with a round table matched with the top surface of the sleeve,
when the upper car body is in a low position relative to the lower car body, the sleeve descends relative to the guide post, and the jacking plate is positioned at an initial position;
when the upper car body is in a first lifting position relative to the lower car body, the sleeve is lifted relative to the guide post but does not lift the round table upwards, and the lifting plate is still in an initial position;
when the upper car body continuously ascends from the first ascending position relative to the lower car body, the sleeve ascends and upwards lifts the round table and the lifting plate, and the lifting plate ascends to the lifting position.
7. A four-way shuttle, characterized in that: a rack and pinion jack reversing mechanism as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321041789.6U CN219822532U (en) | 2023-04-28 | 2023-04-28 | Gear rack transmission jacking reversing mechanism and four-way shuttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321041789.6U CN219822532U (en) | 2023-04-28 | 2023-04-28 | Gear rack transmission jacking reversing mechanism and four-way shuttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219822532U true CN219822532U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321041789.6U Active CN219822532U (en) | 2023-04-28 | 2023-04-28 | Gear rack transmission jacking reversing mechanism and four-way shuttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219822532U (en) |
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2023
- 2023-04-28 CN CN202321041789.6U patent/CN219822532U/en active Active
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