CN211521419U

CN211521419U - Lifting mechanism

Info

Publication number: CN211521419U
Application number: CN201922451020.1U
Authority: CN
Inventors: 黄喆; 金峥
Original assignee: Guangdong Zhiyuan Robot Technology Co Ltd
Current assignee: Guangdong Zhiyuan Robot Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-18
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a lifting mechanism, include: a first mounting portion; the lifting rope is provided with a free end and a fixed end, and the free end of the lifting rope is used for connecting the piece to be lifted; the roller is connected with the first installation part and is rotatably arranged relative to the first installation part; the fixed end of the lifting rope is used for being connected with the roller so as to wind the lifting rope on the roller when the roller rotates; wherein, the cylinder is movably set up along the horizontal direction relatively first installation department to make the lifting rope evenly arrange on the cylinder. The utility model discloses a hoist mechanism has solved hoist mechanism among the prior art and has treated the lower problem of a lift in-process stability promoting.

Description

Lifting mechanism

Technical Field

The utility model relates to an intelligence dining room field particularly, relates to a hoist mechanism.

Background

According to the dish delivery scheme of the restaurant in the intelligence, the AGV trolley is generally conveyed to the position above a dining table of a customer and then is thrown by a single-rope lifting mechanism.

However, because the throwing mechanism drives the tray to descend for single rope, and according to the multiple requirements of restaurant house structure and restaurant operation, the stroke of throwing mechanism needs to accomplish 1.5 meters to 3 meters and varies, in addition the narrowness and the bearing restriction of headspace all bring certain degree of difficulty for hoist mechanism's design, cause hoist mechanism among the prior art to have easy card rope, speed inequality, the sudden drop scheduling problem.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a lifting mechanism to solve the problem that the stability of the lifting mechanism in the prior art is low.

In order to achieve the above object, the utility model provides a lifting mechanism, include: a first mounting portion; the lifting rope is provided with a free end and a fixed end, and the free end of the lifting rope is used for connecting the piece to be lifted; the roller is connected with the first installation part and is rotatably arranged relative to the first installation part; the fixed end of the lifting rope is used for being connected with the roller so as to wind the lifting rope on the roller when the roller rotates; wherein, the cylinder is movably set up along the horizontal direction relatively first installation department to make the lifting rope evenly arrange on the cylinder.

Further, the lifting mechanism further comprises: the lifting assembly is arranged on the first installation part and connected with the roller, and at least part of the lifting assembly is rotatably arranged to drive the roller to rotate; the lifting assembly is movably arranged along the horizontal direction relative to the first installation part so as to drive the roller to move.

Further, the lifting mechanism further comprises: the first transmission component is in transmission connection with the lifting component to drive the lifting component to move.

Further, the lift assembly includes: a second mounting part connected to the first mounting part; and the second transmission assembly is arranged on the second installation part and is in transmission connection with the roller so as to drive the roller to rotate.

Furthermore, the second transmission assembly comprises a first transmission wheel, a second transmission wheel and a transmission belt, the transmission belt is sleeved on the first transmission wheel and the second transmission wheel, and the first transmission wheel is rotatably arranged to drive the second transmission wheel to rotate; wherein, the roller is connected with the second driving wheel.

Furthermore, the lifting mechanism also comprises a transmission screw rod and a transmission nut, and the transmission screw rod is connected with the second transmission wheel so that the second transmission wheel drives the transmission screw rod to rotate; the transmission nut is fixedly connected with the first installation part and sleeved on the transmission lead screw so as to drive the lifting assembly to move when the transmission lead screw rotates relative to the transmission nut.

Further, the lifting mechanism further comprises: a guide rail disposed on the first mounting portion; the first sliding block is arranged on the second installation portion and matched with the guide rail, and the first sliding block is arranged on the guide rail and movably arranged along the guide rail.

Further, the lifting mechanism further comprises: the end, far away from the second transmission wheel, of the transmission screw rod is connected with the first supporting part, the transmission screw rod is rotatably arranged relative to the first supporting part, and the transmission screw rod drives the first supporting part to move; the second sliding block is arranged on the first supporting part and matched with the guide rail, and the second sliding block is arranged on the guide rail and movably arranged along the guide rail.

Further, the lifting mechanism further comprises: the fixing part is fixedly arranged on the first mounting part, and the transmission nut is arranged on the fixing part; the second supporting part is arranged on the second mounting part, the second supporting part and the first supporting part are arranged on two opposite sides of the fixing part, and the transmission screw penetrates through the second supporting part and is rotatably arranged relative to the second supporting part.

Further, the lifting mechanism further comprises: the detection piece is connected with the lifting assembly; a first sensor disposed on the first mounting part to reduce a moving speed of the drum when the first sensor detects the detection piece; the second inductor is arranged on the first installation part and located on one side, far away from the roller, of the first inductor, so that the roller stops moving when the second inductor detects the detection piece.

Further, the lift assembly further comprises: and the driving device is arranged on the first installation part and is in driving connection with the first driving wheel so as to drive the first driving wheel to rotate.

The utility model discloses a hoist mechanism includes first installation department, lifting rope and cylinder, and this hoist mechanism still makes the cylinder remove along the horizontal direction when realizing receiving and releasing the lifting rope through the rotation of cylinder to make the lifting rope can evenly arrange on the cylinder. The lifting mechanism can enable the lifting ropes to be uniformly arranged, can enable the lifting ropes to keep constant torque in the lifting process of the part to be lifted through pulling, does not change along with the position, and improves the stability of the lifting process.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a perspective view of an embodiment of a lifting mechanism according to the present invention;

fig. 2 shows a front view of an embodiment of a lifting mechanism according to the invention;

fig. 3 shows a top view of an embodiment of a lifting mechanism according to the invention;

fig. 4 shows a side view of an embodiment of a lifting mechanism according to the invention.

Wherein the figures include the following reference numerals:

10. a first mounting portion; 30. a drum; 40. a lifting assembly; 41. a second mounting portion; 42. a second transmission assembly; 421. a first drive pulley; 422. a second transmission wheel; 423. a transmission belt; 43. a drive device; 50. a first transmission assembly; 60. a drive screw; 70. a drive nut; 80. a guide rail; 90. a first slider; 100. a first support section; 110. a second slider; 120. a fixed part; 130. a second support portion; 140. detecting a sheet; 150. a first inductor; 160. a second inductor.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a lifting mechanism please refer to fig. 1 to 4, include: a first mounting portion 10; the lifting rope is provided with a free end and a fixed end, and the free end of the lifting rope is used for connecting the piece to be lifted; a roller 30, the roller 30 is connected with the first installation part 10, and the roller 30 is rotatably arranged relative to the first installation part 10; the fixed end of the lift cord is used to connect with the drum 30 so that the lift cord is wound around the drum 30 when the drum 30 rotates; wherein, the drum 30 is movably disposed in a horizontal direction with respect to the first mounting portion 10 so that the lift cords are uniformly arranged on the drum 30.

The utility model discloses a hoist mechanism includes first installation department 10, lifting rope and cylinder 30, and this hoist mechanism still makes cylinder 30 remove along the horizontal direction when realizing receiving and releasing the lifting rope through the rotation of cylinder 30 to make the lifting rope can evenly arrange on cylinder 30. The lifting mechanism can enable the lifting ropes to be uniformly arranged, can enable the lifting ropes to keep constant torque in the lifting process of the part to be lifted through pulling, does not change along with the position, and improves the stability of the lifting process.

Wherein, the piece to be lifted is an empty tray or a vegetable basket filled with food materials.

In particular, the roller 30 moves in a first predetermined direction. Wherein, the first preset direction is the extending direction of the transmission screw 60.

In this embodiment, the lifting mechanism further includes a lifting assembly 40 disposed on the first mounting portion 10, the lifting assembly 40 is connected to the roller 30, and at least a portion of the lifting assembly 40 is rotatably disposed to drive the roller 30 to rotate; the lifting assembly 40 is movably disposed in a horizontal direction with respect to the first mounting portion 10 to move the drum 30.

In this embodiment, the lifting mechanism further includes a first transmission assembly 50, and the first transmission assembly 50 is in transmission connection with the lifting assembly 40 to drive the lifting assembly 40 to move.

In the present embodiment, the lifting assembly 40 includes: a second mounting portion 41 connected to the first mounting portion 10; and the second transmission assembly 42 is arranged on the second mounting part 41, and the second transmission assembly 42 is in transmission connection with the roller 30 so as to drive the roller 30 to rotate.

In this embodiment, the second transmission assembly 42 includes a first transmission wheel 421, a second transmission wheel 422 and a transmission belt 423, the transmission belt 423 is sleeved on the first transmission wheel 421 and the second transmission wheel 422, and the first transmission wheel 421 is rotatably disposed to drive the second transmission wheel 422 to rotate; wherein, the roller 30 is connected with the second driving wheel 422 through screws.

Preferably, the difference between the numbers of teeth of the first driving wheel 421 and the second driving wheel 422 forms a speed reducing mechanism to increase the torque, and the driving belt 423 is a circular arc tooth-shaped synchronous belt to support a larger torque.

In this embodiment, the lifting mechanism further includes a driving screw 60 and a driving nut 70, the driving screw 60 is connected to the second driving wheel 422, so that the second driving wheel 422 drives the driving screw 60 to rotate; the transmission nut 70 is fixedly connected with the first mounting portion 10, and the transmission nut 70 is sleeved on the transmission screw 60 to drive the lifting assembly 40 to move when the transmission screw 60 rotates relative to the transmission nut 70. Preferably, the driving screw 60 is connected to the second driving wheel 422 through a tensioning sleeve, and the driving roller 30 rotates while driving the driving screw 60 to rotate.

To achieve the guiding of the lifting assembly 40, the lifting mechanism further comprises: a guide rail 80 provided on the first mounting portion 10; and the first sliding block 90 is arranged on the second mounting part 41, the first sliding block 90 is matched with the guide rail 80, and the first sliding block 90 is arranged on the guide rail 80 and movably arranged along the guide rail 80.

Specifically, the guide rail 80 extends in a first preset direction.

In order to support the drive screw 60, the lifting mechanism further includes: one end of the transmission screw 60, which is far away from the second transmission wheel 422, is connected with the first supporting part 100, the transmission screw 60 is rotatably arranged relative to the first supporting part 100, and the transmission screw 60 drives the first supporting part 100 to move; and a second slider 110 disposed on the first support 100, the second slider 110 being adapted to the guide rail 80, the second slider 110 being disposed on the guide rail 80 and movably disposed along the guide rail 80.

To support the drive nut 70, the lifting mechanism further comprises: a fixing part 120 fixedly disposed on the first mounting part 10, and a driving nut 70 disposed on the fixing part 120; the second supporting portion 130 is disposed on the second mounting portion 41, the second supporting portion 130 and the first supporting portion 100 are disposed on opposite sides of the fixing portion 120, and the driving screw 60 is disposed on the second supporting portion 130 and is rotatable with respect to the second supporting portion 130.

In this embodiment, the lifting mechanism further comprises: a detection piece 140 connected to the lifting assembly 40; a first sensor 150 provided on the first mounting part 10 to reduce a moving speed of the drum 30 when the first sensor 150 detects the detection sheet 140; and a second sensor 160 disposed on the first mounting portion 10, wherein the second sensor 160 is located at a side of the first sensor 150 away from the drum 30, so as to stop the movement of the drum 30 when the second sensor 160 detects the detection sheet 140. Specifically, the first sensor 150 is used as a criterion for determining a deceleration region, and the second sensor 160 is used as an upper limit criterion for lifting the to-be-lifted member, so that when the detection sheet 140 sequentially touches 2 sensors, the to-be-lifted member can respectively trigger deceleration movement and stop movement.

In specific implementation, the detecting piece 140 is disposed on the second slider 110.

In this embodiment, the lifting assembly 40 further includes a driving device 43 disposed on the second mounting portion 41, and the driving device 43 is drivingly connected to the first driving wheel 421 to drive the first driving wheel 421 to rotate. Preferably, the driving means 43 is a stepping motor.

The utility model discloses use the cylinder to receive and release the rope in order to transmit lift power, when the rope was received and released in the cylinder winding, increased the degree of freedom of a sideslip for the cylinder for the rope can evenly be arranged on the cylinder, can make the align to grid of rope, can make the rope again treat the lift in-process at the pulling and keep the moment of torsion invariable, not along with the position change, promote the stability of lift process.

The utility model discloses to the winding of the rope of excessive friction of not allowing to appear in nylon rope class one kind, avoided the rope wearing and tearing because of the friction production with the mechanism at the serving process, be different from wire rope's serving.

The utility model discloses use the single motor as power drive, satisfy two actions of wiring and translation simultaneously, can satisfy more functional requirements under the limited condition of cost.

For the requirement of lifting a piece to be lifted by lifting a nylon rope, the utility model realizes the function of uniform lifting, and the rope is uniformly wound, so that the rope can not be jammed, suddenly dropped and the like; the torque is guaranteed to be stable when the roller is evenly paved on the roller, the speed is even and controllable in the motion process, the acceleration is stable, and meanwhile the service life of the motor can be prolonged better.

The utility model discloses a hoist mechanism promotes the condition of treating the lifter to the lifting rope of the easy wearing and tearing of nylon rope class one type, when guaranteeing that the lifting rope does not receive great wearing and tearing, can guarantee again to treat the even lift of lifter.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lift mechanism, comprising:

a first mounting portion (10);

the lifting rope is provided with a free end and a fixed end, and the free end of the lifting rope is used for connecting the piece to be lifted;

a roller (30), wherein the roller (30) is connected with the first installation part (10), and the roller (30) is rotatably arranged relative to the first installation part (10); the fixed end of the lifting rope is used for being connected with the roller (30);

wherein the drum (30) is movably arranged along the horizontal direction relative to the first mounting part (10) so that the lifting ropes are uniformly distributed on the drum (30).

2. The lift mechanism of claim 1, further comprising:

the lifting assembly (40) is arranged on the first installation part (10), the lifting assembly (40) is connected with the roller (30), and at least part of the lifting assembly (40) is rotatably arranged to drive the roller (30) to rotate; the lifting assembly (40) is movably arranged along the horizontal direction relative to the first installation part (10) so as to drive the roller (30) to move.

3. The lift mechanism of claim 2, further comprising:

the first transmission assembly (50) is in transmission connection with the lifting assembly (40) so as to drive the lifting assembly (40) to move.

4. The lifting mechanism of claim 2, wherein the lifting assembly (40) comprises:

a second mounting part (41) connected to the first mounting part (10);

the second transmission assembly (42) is arranged on the second installation part (41), and the second transmission assembly (42) is in transmission connection with the roller (30) to drive the roller (30) to rotate.

5. The lifting mechanism according to claim 4, wherein the second transmission assembly (42) comprises a first transmission wheel (421), a second transmission wheel (422) and a transmission belt (423), the transmission belt (423) is sleeved on the first transmission wheel (421) and the second transmission wheel (422), the first transmission wheel (421) is rotatably arranged to drive the second transmission wheel (422) to rotate; wherein the roller (30) is connected with the second transmission wheel (422);

lifting unit (40) still includes drive arrangement (43), drive arrangement (43) set up on second installation department (41), drive arrangement (43) with first drive wheel (421) drive connection, in order to drive first drive wheel (421) rotate.

6. The lifting mechanism according to claim 5, further comprising a driving screw (60) and a driving nut (70), wherein the driving screw (60) is connected to the second driving wheel (422), so that the second driving wheel (422) drives the driving screw (60) to rotate; drive nut (70) with first installation department (10) fixed connection, drive nut (70) cover is established on drive lead screw (60), in order drive lead screw (60) are relative drive nut (70) drive when rotating lifting means spare (40) remove.

7. The lift mechanism of claim 6, further comprising:

a guide rail (80) provided on the first mounting portion (10);

the first sliding block (90) is arranged on the second installation portion (41), the first sliding block (90) is matched with the guide rail (80), and the first sliding block (90) is arranged on the guide rail (80) and movably arranged along the guide rail (80).

8. The lift mechanism of claim 7, further comprising:

one end, far away from the second transmission wheel (422), of the transmission screw rod (60) is connected with the first supporting part (100), the transmission screw rod (60) is rotatably arranged relative to the first supporting part (100), and the transmission screw rod (60) drives the first supporting part (100) to move;

the second sliding block (110) is arranged on the first supporting portion (100), the second sliding block (110) is matched with the guide rail (80), and the second sliding block (110) is arranged on the guide rail (80) and movably arranged along the guide rail (80).

9. The lift mechanism of claim 8, further comprising:

the fixing part (120) is fixedly arranged on the first mounting part (10), and the transmission nut (70) is arranged on the fixing part (120);

the second supporting portion (130) is arranged on the second installation portion (41), the second supporting portion (130) and the first supporting portion (100) are arranged on two opposite sides of the fixing portion (120), and the transmission screw rod (60) penetrates through the second supporting portion (130) and is arranged on the second supporting portion (130) in a rotating mode relative to the second supporting portion (130).

10. The lift mechanism of any one of claims 2 to 9, further comprising:

a detection sheet (140) connected to the lifting assembly (40);

a first sensor (150) provided on the first mounting portion (10) to reduce a moving speed of the drum (30) when the first sensor (150) detects the detection piece (140);

and a second sensor (160) disposed on the first mounting portion (10), wherein the second sensor (160) is located on a side of the first sensor (150) away from the drum (30) to stop the movement of the drum (30) when the second sensor (160) detects the detection piece (140).