CN210122321U

CN210122321U - Transport vehicle and storage device

Info

Publication number: CN210122321U
Application number: CN201920614143.XU
Authority: CN
Inventors: 刘臣
Original assignee: Beijing Jingdong Qianshi Technology Co Ltd
Current assignee: Beijing Jingdong Qianshi Technology Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-03-03
Anticipated expiration: 2029-04-30

Abstract

The utility model provides a transport vechicle and storage device, the transport vechicle includes the driving piece, the transmission shaft and be used for with the cooperation piece of the guide piece adaptation on the goods shelves, the output of driving piece is connected with the transmission shaft, the cooperation piece sets up on the transmission shaft, still be equipped with on the transmission shaft and prevent the mechanism of falling, prevent that the mechanism of falling establishes including the cover and establish the epaxial ratchet of transmission, with the pawl of ratchet looks adaptation and the elasticity prefastening piece of connection pawl, the pawl includes around same pin joint pivoted first pawl end and second pawl end, the pawl receives elasticity prefastening piece restraint and first pawl end and ratchet sliding contact, second pawl end joint is in the tooth's socket of ratchet when realizing the pawl around the pin joint swing so that the ratchet rotational speed surpass. The utility model discloses the risk that falls when can reduce transport vechicle climbing goods shelves, and install the good reliability, be difficult for receiving external environment influence.

Description

Transport vehicle and storage device

Technical Field

The utility model relates to a storage commodity circulation field especially relates to a transport vechicle and storage device.

Background

Currently, with the acceleration of life rhythm, the commodity circulation trade is inseparable with people's life more and more, and the commodity circulation company can have a large amount of parcels to wait to sort and go in and out the warehouse every day. In the traditional method, the work is mainly completed by manpower, the workload is large, and the accuracy and the efficiency are not ensured. With the development of science and technology, automation devices have been widely popularized, and the adoption of mechanical equipment for sorting packages and entering and exiting a warehouse improves the accuracy and efficiency and saves manpower. In the prior art, an automation device mainly comprises a loading machine, a transport vehicle, a goods shelf and the like, wherein the loading machine places articles on the transport vehicle, and then the transport vehicle climbs to a corresponding goods shelf layer to place the goods at a specified position on the goods shelf. The goods shelves are equipped with the guiding mechanism of looks adaptation for the climbing of realization transport vechicle on goods shelves including the sub-goods shelves of the multilayer of range upon range of setting on transport vechicle and goods shelves. One of them guiding mechanism is including setting up the chain on the goods shelves and setting up the sprocket on the transport vechicle, and the chain is perpendicular with ground, realizes the climbing of transport vechicle on the goods shelves through the meshing transmission of sprocket and chain to send the goods to appointed position.

The transportation vehicle has the risk of falling when climbing a goods shelf, and in order to solve the problem, one scheme in the prior art is to arrange an electromagnetic clutch and a motor brake in the transportation vehicle, wherein the electromagnetic clutch is matched with an output shaft of a driving motor, the motor brake and the electromagnetic clutch are all in communication connection with a controller, an encoder inside the driving motor can send rotation data of the output shaft of the motor to the controller in real time, and when the rotating speed of an output shaft of the motor exceeds a preset value, the controller sends an instruction to the electromagnetic clutch and the motor brake to disconnect the electromagnetic clutch, so that the output shaft is prevented from rotating too fast to damage the driving motor; meanwhile, the motor brake stops the driving motor, so that the transport vehicle stops.

However, the above scheme is susceptible to external electromagnetic interference, so that the whole control system fails.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect under the prior art, the utility model aims to provide a transport vechicle and storage device, the utility model discloses the risk of falling when can reducing the transport vechicle climbing goods shelves, and install the strong reliability, be difficult for receiving external environment influence.

An embodiment of the utility model provides a transport vechicle, driving piece, transmission shaft and be used for with the cooperation piece of the guide part adaptation on the goods shelves, the output of driving piece with the transmission shaft is connected, the cooperation piece sets up on the transmission shaft, still be equipped with on the transmission shaft and prevent falling the mechanism, prevent falling the mechanism establish at the transmission epaxial ratchet, with the pawl and the connection of ratchet looks adaptation the elasticity pretensioning piece of pawl, the pawl includes around same pin joint pivoted first pawl end and second pawl end, the pawl receives elasticity pretensioning piece restraint just first pawl end with ratchet sliding contact realizes the pawl winds the pin joint swing is so that when ratchet rotational speed surpassed the default the second pawl end joint be in the tooth's socket of ratchet.

As above, optionally, the ratchet wheel includes a plurality of ratchet teeth, the ratchet teeth include an abutting surface for abutting against the second pawl end and a first mating surface away from the abutting surface, a second mating surface is further formed between the first mating surface and the abutting surface of the adjacent ratchet tooth, the radian of the first mating surface is greater than that of the second mating surface, the surface shape of the first pawl end is matched with the first mating surface, and the surface shape of the second pawl end is matched with the second mating surface.

The carriage as described above, optionally, a distance between a point where the first pawl end contacts the ratchet wheel and the hinge point is smaller than a distance between a point where the second pawl end contacts the ratchet wheel and the hinge point.

The transport vehicle optionally further comprises a fixing plate, wherein a first through hole and a second through hole are formed in the fixing plate, the transmission shaft penetrates through the first through hole, a pin shaft is arranged in the second through hole, and the pawl is hinged and fixed to the pin shaft.

In the transport vehicle as described above, optionally, one end of the elastic preload member is fixedly connected to the second pawl end, and the second end of the elastic preload member is fixedly connected to the fixing plate.

The transport vechicle as above, optionally, still including setting up fixing base and regulation post on the fixed plate, be equipped with the regulation hole on the fixing base, it wears to establish to adjust the post in the regulation hole, adjust the post with adjust hole threaded connection, it connects to adjust the post the second end of elasticity pretension piece.

In the transportation vehicle as described above, optionally, the ratchet is connected with the transmission shaft through a spline.

According to the transport vehicle, optionally, four fitting pieces are arranged on the chassis, and the four fitting pieces are uniformly distributed on the chassis.

The transport vehicle as described above, optionally, the guide is a chain and the mating members are sprockets.

Another embodiment of the utility model provides a storage device, including goods shelves and at least one as above arbitrary the transport vechicle, be equipped with at least one guide piece that sets up along vertical direction on the goods shelves, the transport vechicle passes through the fitting piece with the guide piece cooperatees.

The utility model provides a transport vechicle and storage device, including the driving piece, the transmission shaft and be used for with the cooperation piece of the guide part adaptation on the goods shelves, the output of driving piece is connected with the transmission shaft, the cooperation piece sets up on the transmission shaft, still be equipped with on the transmission shaft and prevent the mechanism of falling, prevent falling the mechanism and establish at the epaxial ratchet of transmission including the cover, with the pawl of ratchet looks adaptation and the elasticity pretension piece of connection pawl, the pawl includes around same pin joint pivoted first pawl end and second pawl end, the pawl receives elasticity pretension piece restraint and first pawl end and ratchet sliding contact, second pawl end joint is in the tooth's socket of ratchet when realizing the pawl and swinging so that the ratchet rotational speed surpasss the default. When the device falls, if the rotating speed of the driving shaft exceeds a preset value, the time for the first pawl end to pass through the tooth space of the ratchet wheel is shorter than the time for the second pawl end to pass through the tooth top height of the ratchet wheel, so that the second pawl end cannot timely get rid of the rotating range of the ratchet wheel, and is abutted against the ratchet wheel to lock the driving shaft, and the device is prevented from falling. The anti-falling mechanism is completely composed of a mechanical structure, is not easily influenced by the external environment and has strong reliability, thereby reducing the risk of equipment falling.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a partial structure of a transportation vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a warehousing device according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

Reference numerals:

100-ratchet wheel; 110-ratchet;

111-an abutment face; 112 — a first mating face;

113-a second mating face; 200-pawl;

210-a first pawl end; 220-second pawl end;

300-a fixed plate; 310-a pin shaft;

320-an elastic preload member; 330-a fixed seat;

340-a conditioning column; 410-a chassis;

420-a driver; 430-a transmission shaft;

440-a fitting member; 500-a guide plate;

510-a guide; 600-an adapter plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Example one

Fig. 1 is a schematic view of a partial structure of a transportation vehicle according to an embodiment of the present invention; please refer to fig. 1. The embodiment provides a transport vehicle, which comprises a chassis 410, wherein a driving part 420, a transmission shaft 430 and a fitting part 440 matched with a guide part 510 on a shelf are arranged on one side of the chassis 410, which is away from the ground, the output end of the driving part 420 is connected with the transmission shaft 430, the fitting part 440 is arranged on the transmission shaft 430, a falling prevention mechanism is further arranged on the transmission shaft 430, the falling prevention mechanism comprises a ratchet wheel 100, a pawl 200 and an elastic preload part 320, the ratchet wheel 100 is sleeved on the transmission shaft 430, the pawl 200 is matched with the ratchet wheel 100, the elastic preload part 320 is connected with the pawl 200, the pawl 200 comprises a first pawl end 210 and a second pawl end 220, the first pawl end 210 and the ratchet wheel 100 are in sliding contact, and the second pawl end 220 is clamped in a tooth socket of the ratchet wheel 100 when the pawl 200 swings around the hinge point to enable the.

Specifically, owing to set up the mechanism of preventing falling on this embodiment transport vechicle, consequently can play the effect that takes place to fall when preventing transport vechicle climbing goods shelves. Of course, it is clear to those skilled in the art that the anti-falling mechanism provided in the present embodiment can also be used in other mechanical structures, and the present embodiment does not further limit this.

In this embodiment, the shelf is provided with a plurality of guide plates 500 vertically arranged, and the guide members 510 are arranged inside the guide plates 500. The transport vehicle comprises wheels and a chassis 410, the wheels are arranged on the side of the chassis 410 facing the ground, and the side of the chassis 410 facing away from the ground is provided with a driving element 420, a transmission shaft 430 and a fitting 440 for fitting with a guide on a shelf.

Alternatively, the guide 510 may be a chain and the engagement member 440 may be a sprocket.

The ratchet 100 of the present embodiment is sleeved on the transmission shaft 430, and the ratchet 100 can be driven by the transmission shaft 430 to rotate together with the transmission shaft 430. In an optional embodiment, the ratchet 100 is connected with the transmission shaft 430 through a spline, specifically, a first key groove for accommodating the spline is formed in the transmission shaft 430, a second key groove matched with the first key groove is formed in the inner wall of the ratchet 100, the spline is placed in the first key groove, a part of the spline protrudes out of the first key groove, the second key groove can cover the protruding part of the spline after the ratchet 100 is sleeved on the transmission shaft 430, and therefore the spline is used for forming transmission fit between the transmission shaft 430 and the ratchet 100.

The ratchet 100 of the present embodiment includes a plurality of ratchet teeth 110, each ratchet tooth 110 includes an abutting surface 111 for abutting against the second pawl end 220 and a first mating surface 112 facing away from the abutting surface 111, a second mating surface 113 is further formed between the first mating surface 112 and the abutting surface 111 of the adjacent ratchet tooth 110, the radian of the first mating surface 112 is greater than that of the second mating surface 113, the surface shape of the first pawl end 210 is adapted to the first mating surface 112, and the surface shape of the second pawl end 220 is adapted to the second mating surface 113. The distance between the point where the first pawl end 210 contacts the ratchet 100 and the hinge point is less than the distance between the point where the second pawl end 220 contacts the ratchet 100 and the hinge point, thereby making the paths taken by the first pawl end 210 and the second pawl end 220 different when the pawl 200 swings the same angle.

As shown in FIG. 1, when the pawl 200 rotates around the hinge point, the first pawl end 210 rotates toward the ratchet wheel 100 to contact the ratchet wheel 100, and the second pawl end 220 rotates away from the ratchet wheel 100 to disengage the rotation range of the ratchet wheel 100.

Specifically, when the ratchet 100 rotates counterclockwise as shown in fig. 1, the transportation vehicle is in a climbing condition, and the ratchet 200 does not block the ratchet 100 no matter what the rotation speed of the ratchet 100 is.

When the ratchet 100 rotates clockwise as shown in fig. 1, the transportation vehicle is in a falling condition, and taking the initial state as an example when the surface of the first pawl end 210 is in contact with the ratchet 100, if the second pawl end 220 is not in contact with the ratchet 100 (i.e. the pawl 200 does not lock the ratchet 100), since the first pawl end 210 is shifted to be the contact surface 111, when the surface of the first pawl end 210 travels to the end of the contact surface 111 of the next ratchet 110 along the first mating surface 112 and the second mating surface 113 of one ratchet 110 on the ratchet 100 (i.e. travels through the distance between two adjacent ratchets), the second pawl end 220 needs to rotate out of the tooth crest of the ratchet 110 (i.e. out of the rotation range of the ratchet 100), so as to ensure that the second pawl end 220 does not lock the ratchet 100. Based on the above analysis, the ratchet 100 can be divided into two different states according to the rotation speed.

When the rotation speed of the ratchet 100 does not exceed the predetermined value, i.e. the transportation cart falls normally, the time for the first pawl end 210 to pass through the tooth space of the ratchet 100 is longer than the time for the second pawl end 220 to pass through the tooth top height of the ratchet 100. Thus, when the surface of the first pawl end 210 is attached to the surface of the ratchet 100, the second pawl end 220 has rotated out of the profile range of the ratchet 100 when rotating, and at this time, the ratchet 100 will keep rotating normally, so that the transportation vehicle can fall normally.

When the rotation speed of the ratchet 100 exceeds a predetermined value, i.e. the transportation vehicle is falling at an accelerated speed, the time for the first pawl end 210 to pass through the tooth space of the ratchet 100 is shorter than the time for the second pawl end 220 to pass through the tooth top height of the ratchet 100. Therefore, when the surface of the first pawl end 210 is attached to the surface of the ratchet 100 to travel, the first pawl end 210 has traveled the distance between two adjacent ratchet teeth 110, and the second pawl end 220 still does not rotate out of the profile range of the ratchet 100 when rotating, at this time, the second pawl end 220 abuts against the abutting surface 111 to lock the ratchet 100, so that the transmission shaft 430 matched with the ratchet 100 is locked, the transportation vehicle is kept at a certain position to prevent the transportation vehicle from falling, and the risk of falling of the transportation vehicle is reduced.

When the transportation vehicle provided by the embodiment falls, if the rotation speed of the driving shaft 430 exceeds the preset value, the time that the first pawl end 210 passes through the tooth space of the ratchet 100 is less than the time that the second pawl end 220 passes through the tooth top height of the ratchet 100, so that the second pawl end 220 cannot timely get rid of the rotation range of the ratchet 100, and is abutted against the ratchet 110 to lock the driving shaft 430, and the device is prevented from falling. The anti-falling mechanism of this embodiment comprises mechanical structure completely, is difficult for receiving external environment influence, and the good reliability to the risk that equipment falls has been reduced.

Further, this embodiment still includes fixed plate 300, is equipped with first through-hole and second through-hole on the fixed plate 300, and transmission shaft 430 wears to establish in the first through-hole, is equipped with round pin axle 310 in the second through-hole, and pawl 200 articulates to be fixed on round pin axle 310.

Further, in this embodiment, one end of the elastic preload member 320 is fixedly connected to the second pawl end 220, and the second end of the elastic preload member 320 is fixedly connected to the fixing plate 300. The resilient preload member 320 can provide an initial pull force on the second pawl end 220 to ensure proper operation of the mechanism. Alternatively, the resilient preload member 320 may be a spring.

Further, this embodiment still includes fixing base 330 and the regulation post 340 of setting on fixed plate 300, is equipped with the regulation hole on the fixing base 330, adjusts in post 340 wears to establish the regulation hole, adjusts post 340 and regulation hole threaded connection, adjusts the second end that post 340 connects elasticity pretension piece 320.

Specifically, fixing base 330 can be through mounting such as bolt and fixed plate 300 fixed connection, is equipped with the arch of perpendicular to fixed plate 300 on the fixing base, has seted up on the arch and has had internal screw thread regulation hole, and the surface of adjusting post 340 is equipped with the external screw thread, thereby realizes the connection of the two through the internal screw thread cooperation in external screw thread and the regulation hole, in addition, still is equipped with the mounting in the outside of regulation hole to adjust post 340 and the relative locking of regulation hole. When the installation length of the adjusting column 340 needs to be adjusted, the adjusting column 340 can be rotated to realize adjustment only by disassembling the fixing piece, so that the elastic preload piece 320 has different initial tension.

Example two

Fig. 2 is a schematic structural diagram of a warehousing device according to an embodiment of the present invention; FIG. 3 is an enlarged view of a portion of FIG. 2; please refer to fig. 2-3. This embodiment provides a storage device comprising a rack and at least one transport cart as described in the first embodiment, wherein the rack is provided with at least one guide 510 arranged in a vertical direction, and the transport cart is engaged with the guide 510 by means of an engaging member 440.

Optionally, four fitting pieces 440 are arranged on the chassis 410, the four fitting pieces 440 are uniformly distributed on the chassis 410, and when the transportation vehicle needs to climb the shelf, the four fitting pieces 440 are respectively connected with one guide piece 510, so that the climbing action is realized under the driving of the driving piece 420.

Optionally, the driving member 420 can be a driving motor, the output end of the driving member 420 can be connected to the transmission shaft 430 through a chain wheel and chain mechanism, the mating member 440 is disposed on the transmission shaft 430, the transmission shaft 430 is further provided with the anti-falling mechanism, and the anti-falling mechanism is integrally fixed to the transportation vehicle through the adapter plate 600.

Due to the arrangement of the anti-falling mechanism, the transport vehicle is not easy to fall from the goods shelf when climbing the goods shelf, so that the reliability and the sorting efficiency of the storage device are improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a transport vechicle, its characterized in that, including driving piece, transmission shaft and be used for with the cooperation piece of the guide part adaptation on the goods shelves, the output of driving piece with the transmission shaft is connected, the cooperation piece sets up on the transmission shaft, still be equipped with on the transmission shaft and prevent falling the mechanism, prevent falling the mechanism including the cover establish the transmission shaft on the ratchet, with the pawl and the connection of ratchet looks adaptation the elasticity pretension piece of pawl, the pawl includes around same pin joint pivoted first pawl end and second pawl end, the pawl receives elasticity pretension piece restraint just first pawl end with ratchet sliding contact realizes the pawl winds the pin joint swing is so that when the ratchet rotational speed exceeds the default second pawl end joint is in the tooth's socket of ratchet.

2. The transportation cart of claim 1, wherein the ratchet wheel comprises a plurality of ratchet teeth, the ratchet teeth comprise an abutting surface for abutting against the second pawl end and a first matching surface facing away from the abutting surface, a second matching surface is further formed between the first matching surface and the abutting surface of the adjacent ratchet teeth, the radian of the first matching surface is larger than that of the second matching surface, the surface shape of the first pawl end is matched with that of the first matching surface, and the surface shape of the second pawl end is matched with that of the second matching surface.

3. The transporter according to claim 1, wherein a distance between a point at which the first pawl end contacts the ratchet wheel and the hinge point is less than a distance between a point at which the second pawl end contacts the ratchet wheel and the hinge point.

4. The transport cart of any one of claims 1-3, further comprising a fixing plate, wherein the fixing plate is provided with a first through hole and a second through hole, the transmission shaft is arranged in the first through hole in a penetrating manner, a pin shaft is arranged in the second through hole, and the pawl is fixed on the pin shaft in a hinged manner.

5. The transporter according to claim 4, wherein one end of the resilient preload member is fixedly coupled to the second detent end and a second end of the resilient preload member is fixedly coupled to the fixed plate.

6. The transportation vehicle of claim 5, further comprising a fixing base and an adjusting post, wherein the fixing base and the adjusting post are disposed on the fixing plate, the adjusting post is disposed in the adjusting hole, the adjusting post is threaded with the adjusting hole, and the adjusting post is connected to the second end of the elastic preload member.

7. The transporter according to claim 1, wherein the ratchet is connected to the drive shaft by splines.

8. The transporter according to claim 1, wherein the transporter is provided with four of the mating members, and the four mating members are evenly distributed on the transporter.

9. The transporter of claim 1, wherein the guide is a chain and the mating elements are sprockets.

10. Storage device, comprising a shelf, on which at least one vertically arranged guide is provided, and at least one carriage according to any of claims 1-9, which carriage cooperates with the guide via the cooperating member.