CN210419122U - Two-stage lifting device for AGV - Google Patents
Two-stage lifting device for AGV Download PDFInfo
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- CN210419122U CN210419122U CN201921260121.4U CN201921260121U CN210419122U CN 210419122 U CN210419122 U CN 210419122U CN 201921260121 U CN201921260121 U CN 201921260121U CN 210419122 U CN210419122 U CN 210419122U
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Abstract
The utility model discloses a two-stage lifting device for an AGV trolley, which comprises a first-stage lifting part, a second-stage lifting part, a lifting platform and a power transmission part, wherein the first-stage lifting part comprises a first lifting frame, a ball screw and a screw nut which are arranged in the first lifting frame; the second-stage lifting part comprises a second lifting frame fixedly connected with the screw rod nut, and the second lifting frame is sleeved on the first lifting frame in a sliding manner along the vertical direction; the top of the second lifting frame is provided with a chain wheel; the lifting platform is arranged on the second lifting frame in a sliding manner along the up-down direction, and a transmission chain is connected between the lifting platform and the first lifting frame; the power transmission part drives the ball screw to rotate, drives the screw nut and the second lifting frame to lift, and accordingly drives the lifting platform to lift through the chain wheel and the transmission chain. Compared with the prior art, the utility model has the advantages of lift platform lifting range is bigger, and lift position control is more accurate, and transmission structure is simpler.
Description
Technical Field
The utility model belongs to the technical field of the automated guided transporting vehicle technique and specifically relates to a two-stage elevating gear for AGV dolly is related to.
Background
An automatic guided vehicle (AGV for short) is a vehicle that has electromagnetic or optical automatic guiding devices, can travel along a specified path, has a programming and parking selection device, a safety protection device and a function of transferring various materials on a vehicle body, and is widely applied to factories and storage logistics industries with high automation degree.
At present, the modes of AGV transporting goods mainly comprise a backpack type, a submerged type, a traction type and the like, and the backpack type mainly comprises a fixed shelf type backpack type and a jacking backpack type. The jacking backpack structure generally adopts a lifting device to drive a lifting platform to transport goods, most of conventional lifting devices adopt a stepping motor to drive a ball screw to rotate and drive a screw nut to vertically lift, so that the goods are jacked, the lifting mode has the characteristics of accurate lifting control, easy realization and the like, but the lifting height range is generally small, and the lifting platform cannot reach a position lower than the height of the screw rod; the lifting mode has the characteristics of large lifting quality, large lifting height range, capability of enabling a lifting platform to reach a higher position and the like, but the lifting control is not accurate enough and the transmission part is complex.
Disclosure of Invention
In view of this, the utility model aims at solving prior art's problem, provide a control is accurate, transmission simple structure, and the bigger two-stage elevating gear who is used for the AGV dolly of lift platform lifting range.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a two-stage lift for an AGV comprising:
the AGV comprises an AGV body, a first-stage lifting part and a second-stage lifting part, wherein the first-stage lifting part is used for being fixed on the AGV body and comprises a first lifting frame, a ball screw arranged in the first lifting frame and a screw nut arranged in a vertical movement mode, and the screw nut is in threaded connection with the ball screw;
the second lifting part is arranged on the first lifting part in a vertically movable mode and comprises a second lifting frame fixedly connected with the screw rod nut, and the second lifting frame is sleeved on the first lifting frame in a vertically sliding mode; the top of the second lifting frame is provided with a chain wheel;
the lifting platform is arranged on the second lifting frame in a sliding manner along the vertical direction, a transmission chain is connected between the lifting platform and the first lifting frame, and the transmission chain bypasses the chain wheel;
and the power transmission part is arranged on the AGC trolley body and drives the ball screw to rotate.
Preferably, the first lifting frame comprises a bottom plate, a top plate and side plates connecting the bottom plate and the two sides of the top plate, and the ball screw is rotatably connected between the bottom plate and the top plate; the first lifting frame is provided with a first-stage lifting guide rail, and the second lifting frame is correspondingly and fixedly provided with a first-stage lifting guide rail sliding block.
Further preferably, the first lifting frame further comprises a back plate, and the back plate and the side plates on the two sides are respectively provided with the primary lifting guide rail; the second lifting frame comprises two-stage supporting plates, a two-stage top plate and a two-stage back plate, wherein the two-stage supporting plates are located on two sides, the two-stage top plate is connected with the two sides of the two-stage supporting plates, and the inner sides of the two-stage supporting plates and the two-stage back plate on the two sides are respectively provided with the one-stage lifting guide rail sliding blocks.
Further preferably, a screw nut mounting plate is connected between the bottoms of the two secondary support plates on the two sides.
Further preferably, the first-stage lifting guide rail sliding blocks are respectively arranged at the bottoms of the second-stage supporting plate and the second-stage back plate.
Preferably, the outer sides of the secondary supporting plates at two sides and the outer side of the secondary back plate are also provided with a secondary lifting guide rail; and the lifting platform is correspondingly provided with a second-stage lifting guide rail sliding block.
Preferably, the sprocket passes through the sprocket shaft and rotates the setting in both sides between the top of secondary backup pad, drive chain's one end links firmly on the one-level lifting frame, and the other end upwards extends, walks around behind the sprocket downwardly extending links firmly on the lift platform.
Preferably, the number of the chain wheel shafts is two, the two chain wheel shafts are arranged in parallel front and back, and each chain wheel shaft is provided with two chain wheels; the two transmission chains are arranged in parallel from left to right, one of the transmission chains is matched with the front and rear chain wheels on the left side, and the other transmission chain is matched with the front and rear chain wheels on the right side.
The power transmission part comprises a power battery, a driving motor, a driving belt wheel, a driven belt wheel and a synchronous belt, the driving belt wheel is connected to an output shaft of the driving motor, the driven belt wheel is coaxially connected with the ball screw, the synchronous belt is wound on the driving belt wheel and the driven belt wheel, and the power battery is used for supplying power to the driving motor.
In a specific embodiment, the power transmission part further comprises a driving controller electrically connected with the driving motor and used for controlling the driving motor.
Due to the adoption of the technical scheme, the utility model discloses the beneficial effect who reaches does:
1. the lifting platform is lifted on the second-stage lifting part through the transmission of a transmission chain and a chain wheel, so that the lowest position of the lifting platform can be closer to a travelling chassis of the AGV trolley, and the highest position can far exceed the top end of the ball screw;
2. the lifting position is controlled more accurately by the matching of the ball screw pair and the transmission chain to drive the secondary lifting part and the lifting platform to lift;
3. the transmission structure is simple, the work is reliable, and the manufacturing cost is low.
Drawings
FIG. 1 is a perspective view of the present invention installed on a traveling chassis of an AGV;
FIG. 2 is a perspective view of the present invention (with the AGV car travel chassis removed);
FIG. 3 is a perspective view of the first-stage elevating portion of the present invention;
FIG. 4 is a front view of the first stage elevating part of the present invention;
FIG. 5 is a right side view of the first stage elevating portion of the present invention;
FIG. 6 is a rear view of the first stage elevating portion of the present invention;
fig. 7 is a top view of the primary lifting portion of the present invention;
FIG. 8 is a perspective view of the second stage elevating portion of the present invention;
fig. 9 is a front view of the second stage elevating part of the present invention;
fig. 10 is a right side view of the second stage elevating portion of the present invention;
fig. 11 is a rear view of the second stage elevating portion of the present invention;
fig. 12 is a top view of the two-stage elevating portion of the present invention;
fig. 13 is a perspective view of the lifting platform of the present invention;
fig. 14 is a top view of the lifting platform of the present invention.
In the drawings: 1. an AGV trolley traveling chassis; 2. a power transmission portion; 2-1, a power battery; 2-2, driving a motor; 2-3, driving a motor controller; 2-4, a driving belt wheel; 2-5, a driven belt wheel; 2-6, synchronous belt; 3. a primary lifting part; 3-1, side plates; 3-2, ball screw; 3-3, a bottom plate; 3-4, a top plate; 3-5, a screw nut bracket; 3-6, a first-level lifting guide rail; 3-7, a first-level lifting guide rail slide block; 3-8, screw rod nut; 3-9, a chain connecting rod; 4. a secondary lifting part; 4-1, secondary supporting plates; 4-2, a sprocket shaft; 4-3, a chain wheel; 4-4, a transmission chain; 4-5, a chain connecting rod; 4-6, a secondary lifting guide rail; 4-7, a two-stage lifting guide rail slide block; 5. a lifting platform.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the two-stage lifting device for an AGV of this embodiment is used for being mounted on a traveling chassis 1 of the AGV, and includes a first-stage lifting part 3, a second-stage lifting part 4, a lifting platform 5 and a power transmission part 2.
As shown in fig. 1-2 and 3-7, the primary lifting part 3 is fixed on the body of the AGV, and in this embodiment, is specifically installed on the traveling chassis of the AGV, and includes a first lifting frame, a ball screw 3-2 installed in the lifting frame, and a screw nut 3-8 moving up and down, where the screw nut 3-8 is in threaded connection with the ball screw 3-2. The first lifting frame comprises a bottom plate 3-3, a top plate 3-4, side plates 3-1 connecting the bottom plate 3-1 and the two sides of the top plate 3-4, and a back plate connecting the side plates 2-1 at the two sides, wherein the upper end and the lower end of the ball screw 3-2 are respectively rotatably connected between the bottom plate 3-3 and the top plate 3-4 through a ball screw supporting and supporting assembly. The first lifting frame is fixed on an AGV trolley walking chassis in the vertical direction, in the embodiment, three one-level lifting guide rails 3-6 are arranged on the first lifting frame in the vertical direction, and the three one-level lifting guide rails 3-6 are respectively fixed on the outer side surfaces of the side plates 3-1 at the two sides and the outer side surface of the back plate. The lower end of the ball screw 3-2 extends downwards and movably penetrates through the AGV trolley walking chassis. The feed screw nut 3-8 is also fixedly connected with a feed screw nut bracket 3-5, and the feed screw nut bracket 3-5 is used for being connected with the secondary lifting part 4.
As shown in fig. 1-2 and 8-12, the secondary lifting part 4 is disposed on the primary lifting part 3 in a vertically movable manner, and the secondary lifting part 4 includes a second lifting frame fixedly connected with a screw nut 3-8 through a screw nut bracket 3-5, and the second lifting frame is slidably sleeved on the first lifting frame in the vertical direction and is slidably connected with a primary lifting guide rail 3-6 and a primary lifting guide rail slider 3-7. Specifically, the second lifting frame comprises two-stage supporting plates 4-1 positioned at two sides, a two-stage top plate and a two-stage back plate which are connected with the two-stage supporting plates 4-1 at two sides, and the inner sides of the two-stage supporting plates 4-1 at two sides and the two-stage back plate are respectively provided with a one-stage lifting guide rail sliding block 3-7. As a preferred embodiment, three first-level lifting guide rail sliding blocks 3-7 are respectively arranged at the bottoms of the second-level supporting plate 4-1 and the second-level back plate and are respectively matched with the three first-level lifting guide rails 3-6 in a vertical sliding mode.
In the embodiment, a screw nut mounting plate is further connected between the bottoms of the two secondary support plates 4-1 at the two sides, and the screw nut support 3-5 is fixedly connected with the screw nut mounting plate through a screw.
And the outer sides of the two-stage supporting plates 4-1 at two sides and the outer side of the two-stage back plate are respectively provided with a two-stage lifting guide rail 4-6 which is used for being in sliding fit with a two-stage lifting guide rail sliding block 4-7 correspondingly arranged on the lifting platform 5. In order to realize linkage, a chain wheel 4-3 is arranged at the top of the second lifting frame, and the chain wheel 4-3 is rotatably arranged between the two secondary supporting plates 4-1 at the two sides through a chain wheel shaft 4-2. In the embodiment, the number of the chain wheel shafts 4-2 is two, the two chain wheel shafts 4-2 are arranged in parallel front and back, and each chain wheel shaft 4-2 is provided with two chain wheels 4-3; the two transmission chains 4-4 are arranged in parallel left and right, wherein one transmission chain 4-4 is matched with the front and rear chain wheels 4-3 on the left side, and the other transmission chain 4-4 is matched with the front and rear chain wheels 4-3 on the right side. One end of the transmission chain 4-4 is fixedly connected to the first-level lifting frame through a chain connecting rod 3-9, specifically, fixedly connected to a back plate of the first-level lifting frame, and the other end extends upwards, bypasses two chain wheels 4-3 and then extends downwards and fixedly connected to the lifting platform 5 through a chain connecting rod 4-5.
As shown in fig. 1-2, 13 and 14, the lifting platform 5 is slidably disposed on the second lifting frame in the up-down direction, the lifting platform 5 is connected to the first lifting frame through a transmission chain 4-4, and is slidably connected to the second lifting frame through three secondary lifting guide rails 4-6 and three secondary lifting guide rail sliders 4-7. Specifically, the lifting platform 5 includes a third lifting frame sleeved on the second lifting frame, and a horizontally extending loading platform is provided on one side of the third lifting frame for loading goods.
As shown in fig. 1 and 2, a power transmission part 2 is arranged on the AGC trolley walking chassis and drives the ball screw to rotate. Specifically, the power transmission part 2 comprises a power battery 2-1, a driving motor 2-2, a driving motor controller 2-3, a driving pulley 2-4, a driven pulley 2-5 and a synchronous belt 2-6, wherein the driving pulley 2-4 is connected to an output shaft of the driving motor 2-2, the driven pulley 2-5 is coaxially connected with the ball screw 3-2, the synchronous belt 2-6 is wound on the driving pulley 2-4 and the driven pulley 2-5, and the power battery 2-1 is used for supplying power to the driving motor 2-2. The power battery 2-1, the driving motor 2-2 and the driving controller 2-3 are fixed on the AGV trolley walking chassis 1 through bolts.
The working principle of the utility model is further elaborated below: the power battery 2-1 supplies power for the driving motor 2-2 and the driving motor controller 2-3, the driving motor 2-2 supplies power for the two-stage lifting device, the driving motor 2-2 rotates, the driving belt wheel 2-4 and the synchronous belt 2-6 are transmitted to the driven belt wheel 2-5, the driven belt wheel 2-5 rotates to drive the ball screw 3-2 to rotate, thereby driving the feed screw nut 3-8 to move linearly, the feed screw nut bracket 3-5 is connected with the feed screw nut 3-8 through a bolt, namely, the screw nut bracket 3-5 moves linearly along with the screw nut 3-8, the secondary supporting plate 4-1 is connected with the screw nut bracket 3-5 through a bolt, namely, the secondary lifting support plate 4-1 moves linearly along with the screw nut bracket 3-5; a chain wheel shaft 4-2 is fixedly arranged at the top of a secondary supporting plate 4-1, a transmission chain wheel 4-3 is arranged on the chain wheel shaft 4-2, the chain wheel shaft 4-2 and the chain wheel 4-3 move linearly along with the secondary supporting plate 4-1, one end of a transmission chain 4-4 is fixedly arranged on a back plate 2-1 of a primary lifting frame through a chain connecting rod 3-9, the other end of the transmission chain passes through the chain wheel 4-3 and then is fixedly arranged on a lifting platform 5 through a chain connecting rod 4-5, the transmission chain 4-4 is driven to move in the linear moving process of the chain wheel 4-3, the lifting platform 5 moves linearly along with the transmission chain 4-4 due to the dragging of the transmission chain 4-4, the primary lifting guide rail 3-6 and a primary lifting guide rail slider 3-7 guide the linear moving process, the lifting platform 5 is guided by a secondary lifting guide rail 4-6 and a secondary lifting guide rail slide block 4-7 in the linear moving process; the lifting stroke of the lifting platform 5 is the sum of the effective stroke of the lead screw nuts 3-8 and the effective stroke of the transmission chains 4-4, and can reach a lower position, so the lifting range of the lifting platform 5 is larger.
The utility model discloses use driving motor as the power supply, use the hold-in range as transmission mode, use ball screw nut to go up and down as the one-level, use the roller chain to go up and down as the second grade, use linear guide as guider, it is bigger to reach to make lift platform lifting range, and lift position control is more accurate, and the transmission structure is simpler, need not lubricated beneficial effect.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A two-stage lift for an AGV comprising:
the AGV comprises an AGV body, a first-stage lifting part and a second-stage lifting part, wherein the first-stage lifting part is used for being fixed on the AGV body and comprises a first lifting frame, a ball screw arranged in the first lifting frame and a screw nut arranged in a vertical movement mode, and the screw nut is in threaded connection with the ball screw;
the second lifting part is arranged on the first lifting part in a vertically movable mode and comprises a second lifting frame fixedly connected with the screw rod nut, and the second lifting frame is sleeved on the first lifting frame in a vertically sliding mode; the top of the second lifting frame is provided with a chain wheel;
the lifting platform is arranged on the second lifting frame in a sliding manner along the vertical direction, a transmission chain is connected between the lifting platform and the first lifting frame, and the transmission chain bypasses the chain wheel;
and the power transmission part is arranged on the AGV trolley body and drives the ball screw to rotate.
2. The two-stage lift mechanism for an AGV cart of claim 1, wherein said first lift frame includes a bottom plate, a top plate and side plates connecting said bottom plate to said top plate on opposite sides thereof, said ball screw rotatably connected between said bottom plate and said top plate; the first lifting frame is provided with a first-stage lifting guide rail, and the second lifting frame is correspondingly and fixedly provided with a first-stage lifting guide rail sliding block.
3. The two-stage lift system for an AGV cart of claim 2, wherein said first lift frame further includes a back panel, said back panel and said side panels on both sides of said back panel having said one-stage lift rails mounted thereon, respectively; the second lifting frame comprises two-stage supporting plates, a two-stage top plate and a two-stage back plate, wherein the two-stage supporting plates are located on two sides, the two-stage top plate is connected with the two sides of the two-stage supporting plates, and the inner sides of the two-stage supporting plates and the two-stage back plate on the two sides are respectively provided with the one-stage lifting guide rail sliding blocks.
4. The two-stage lift system for an AGV cart of claim 3, wherein a screw nut mounting plate is further coupled between the bottom of the secondary support plates on both sides.
5. The two-stage lift mechanism for an AGV cart of claim 3, wherein said primary lift rail slides are disposed at the bottom of said secondary support plate and said secondary backing plate, respectively.
6. The two-stage lifting device for the AGV according to claim 3, wherein two stage lifting rails are further disposed on the outer sides of the two stage supporting plates and the outer sides of the two stage back plates on two sides; and the lifting platform is correspondingly provided with a second-stage lifting guide rail sliding block.
7. A two-stage lift mechanism for an AGV cart according to claim 3 wherein said sprockets are rotatably mounted on each side of said two stage support plates by sprocket shafts, said drive chain being attached to said one stage lift frame at one end and extending upwardly at the other end to extend downwardly past said sprockets and attach to said lift platform.
8. The two-stage lift mechanism for an AGV cart of claim 7, wherein there are two sprocket shafts, said two sprocket shafts being disposed side-by-side one behind the other, each of said sprocket shafts having two of said sprockets mounted thereon; the two transmission chains are arranged in parallel from left to right, one of the transmission chains is matched with the front and rear chain wheels on the left side, and the other transmission chain is matched with the front and rear chain wheels on the right side.
9. The two-stage lift mechanism for an AGV cart according to any of claims 1 to 8, wherein said power transmission portion comprises a power battery, a driving motor, a driving pulley, a driven pulley and a timing belt, said driving pulley is coupled to an output shaft of said driving motor, said driven pulley is coaxially coupled to said ball screw, said timing belt is wound around said driving pulley and said driven pulley, and said power battery is used for supplying power to said driving motor.
10. The two-stage lift mechanism for an AGV cart of claim 9 wherein said power transmission further includes a drive controller electrically connected to said drive motor for controlling said drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921260121.4U CN210419122U (en) | 2019-08-06 | 2019-08-06 | Two-stage lifting device for AGV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921260121.4U CN210419122U (en) | 2019-08-06 | 2019-08-06 | Two-stage lifting device for AGV |
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| CN210419122U true CN210419122U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921260121.4U Active CN210419122U (en) | 2019-08-06 | 2019-08-06 | Two-stage lifting device for AGV |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009500A (en) * | 2020-09-07 | 2020-12-01 | 西安铁研信息科技有限公司 | Platform lift isolating door |
| CN112079297A (en) * | 2020-09-04 | 2020-12-15 | 浙江国芯科技有限公司 | Remotely-controllable electric cart |
| CN114014211A (en) * | 2021-11-03 | 2022-02-08 | 苏州中车轨道交通车辆有限公司 | Lifting platform |
| CN114084841A (en) * | 2020-08-25 | 2022-02-25 | 威刚科技股份有限公司 | Unmanned vehicle |
| CN114211440A (en) * | 2022-01-11 | 2022-03-22 | 山东钢铁股份有限公司 | Lifting type chain wheel replacing device |
| CN118004651A (en) * | 2024-02-29 | 2024-05-10 | 石家庄学院 | Three-dimensional goods shelves handling device |
-
2019
- 2019-08-06 CN CN201921260121.4U patent/CN210419122U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084841A (en) * | 2020-08-25 | 2022-02-25 | 威刚科技股份有限公司 | Unmanned vehicle |
| CN112079297A (en) * | 2020-09-04 | 2020-12-15 | 浙江国芯科技有限公司 | Remotely-controllable electric cart |
| CN112079297B (en) * | 2020-09-04 | 2022-05-20 | 浙江国芯科技有限公司 | Remotely-controllable electric cart |
| CN112009500A (en) * | 2020-09-07 | 2020-12-01 | 西安铁研信息科技有限公司 | Platform lift isolating door |
| CN114014211A (en) * | 2021-11-03 | 2022-02-08 | 苏州中车轨道交通车辆有限公司 | Lifting platform |
| CN114211440A (en) * | 2022-01-11 | 2022-03-22 | 山东钢铁股份有限公司 | Lifting type chain wheel replacing device |
| CN118004651A (en) * | 2024-02-29 | 2024-05-10 | 石家庄学院 | Three-dimensional goods shelves handling device |
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