Guide mechanism with self-locking function and four-way shuttle vehicle

Abstract

The utility model discloses a guide mechanism with a self-locking function and a four-way shuttle vehicle. The guide mechanism with the self-locking function is mounted on a vehicle body of the four-way shuttle vehicle, and comprises a mounting seat, a self-locking mechanism and a locking mechanism, and the mounting seat is used for being connected with the vehicle body; the electric push rod is fixedly connected to the vehicle body; the sliding seat is connected with the mounting seat in a sliding manner; the self-locking connecting rod mechanism is mounted on the mounting seat and is used for connecting an output shaft of the electric push rod and the sliding seat; and the guide wheel is rotatably connected to the lower part of the sliding seat. The guide mechanism has the advantages of being high in bearing capacity and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way shuttle vehicles, in particular to a guiding mechanism with a self-locking function and a four-way shuttle vehicle. Background Art

[0002] A four-way shuttle vehicle is an intelligent shuttle vehicle handling device integrating functions such as four-way driving, in-situ rail change, automatic handling, intelligent monitoring, and traffic dynamic management. The four-way shuttle vehicle can travel along the main channel (defined as the X-direction track) or the cargo channel (defined as the Y-direction track) on the cross track, reach any designated cargo position in the warehouse, is not restricted by the site, adapts to various working environments, and is freely scheduled at the terminal to achieve full-automatic unattended operation.

[0003] When the four-way shuttle vehicle travels in the main channel, in order to avoid the phenomenon of the vehicle body derailing in the main channel, a guiding mechanism is usually required to be arranged between the vehicle body and the track. The guiding mechanism ensures the stable operation of the vehicle body in the main channel by bearing the force perpendicular to the main channel direction. In other words, the guiding mechanism is mainly used to bear the acting force in the Y direction in the main channel, so as to prevent the vehicle body from getting out of the X track due to the acting force in the Y direction when running in the main channel.

[0004] The existing guiding method is generally of the gear-rack type. Specifically, a rack is installed on the inner side wall of the track in the main channel, a gear is arranged on the outer side wall of the vehicle body, the axis of the gear coincides with the Z direction, and the vehicle body is guided by the meshing of the gear and the rack. However, limited by the small space inside the track, the module of the gear and the rack is relatively small, and their ability to bear tensile or compressive forces is small, resulting in a short service life. Summary of the Utility Model

[0005] In order to overcome the defects in the prior art, the embodiments of the utility model provide a guiding mechanism with a self-locking function and a four-way shuttle vehicle, which have the advantages of strong load-bearing capacity and long service life.

[0006] The embodiments of the present application disclose: a guiding mechanism with a self-locking function, which is installed on the vehicle body of a four-way shuttle vehicle and includes:

[0007] A mounting seat for connecting with the vehicle body;

[0008] An electric push rod fixedly connected to the vehicle body;

[0009] A sliding seat slidably connected to the mounting seat;

[0010] A self-locking link mechanism installed on the mounting seat for connecting the output shaft of the electric push rod and the sliding seat;

[0011] A guiding wheel rotatably connected to the lower part of the sliding seat.

[0012] Specifically, the self-locking link mechanism includes a first linkage rod, a second linkage rod, a third linkage rod, and a fourth linkage rod; one end of the first linkage rod is connected to the output shaft of the electric push rod, and the other end of the first linkage rod is hinged to one end of the second linkage rod; one end of the third linkage rod is hinged to the mounting base, the other end of the third linkage rod is hinged to one end of the fourth linkage rod, and the other end of the fourth linkage rod is hinged to the sliding seat; the other end of the second linkage rod is hinged to the third linkage rod.

[0013] Specifically, the third linkage rod and the mounting base have a first connection point, the third linkage rod and the second linkage rod have a second connection point, the third linkage rod and the fourth linkage rod have a third connection point, and the second connection point is located between the first connection point and the third connection point.

[0014] Specifically, a sliding shaft is connected to the mounting base, the sliding shaft passes through the inside of the sliding seat, and a lead-free bearing for sliding connection with the sliding shaft is sleeved on the sliding seat.

[0015] Specifically, a bearing is embedded inside the guide wheel, and the guide wheel is connected to the sliding seat through the bearing.

[0016] Specifically, the electric push rod is connected to the vehicle body through a bracket.

[0017] The embodiment of the present application also discloses: a four-way shuttle car, including a vehicle body and a guiding mechanism with a self-locking function as described in this embodiment, and the guiding mechanism with a self-locking function is installed on the vehicle body.

[0018] The present utility model has at least the following beneficial effects:

[0019] 1. Self-locking is formed among several linkage rods of the self-locking link mechanism, which can effectively extend the service life of other components (such as the electric push rod).

[0020] 2. By using a lead-free bearing to connect the sliding seat and the sliding shaft, the sliding of the sliding seat can be smooth without jamming, the guide wheel can accurately reach both sides of the track for guiding, and the sliding mode of the lead-free bearing enables the guiding mechanism to bear a large lateral force and maintain structural stability, which can extend the service life of the mechanism.

[0021] To make the above and other objects, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a guiding mechanism with a self-locking function installed on a vehicle body in an embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of a guiding mechanism with a self-locking function from one perspective in an embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of a guiding mechanism with a self-locking function from another perspective in an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of a self-locking link mechanism in an embodiment of the present invention;

[0027] Figure 5 It is a connection schematic diagram of a second linkage rod, a third linkage rod, and a fourth linkage rod in an embodiment of the present invention.

[0028] The reference numerals of the above drawings: 1, mounting seat; 2, electric push rod; 3, sliding seat; 4, self-locking link mechanism; 41, first linkage rod; 42, second linkage rod; 43, third linkage rod; 44, fourth linkage rod; 5, guiding wheel; 6, sliding shaft; 7, bearing; 8, bracket; vehicle body 10. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "below", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being below and obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0032] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of this application.

[0033] In addition, the terms "first", "second", etc. are only used for distinction in description and have no special meaning.

[0034] As Figure 1 shown, the guiding mechanism with a self-locking function of this embodiment is installed on the cross beam of the four-way shuttle vehicle body 10. There is a groove on the cross beam of the vehicle body 10, and the guiding mechanism is arranged in the groove.

[0035] Combined Figure 1 and Figure 2As shown, the guide mechanism with self-locking function of this embodiment mainly includes: a mounting seat 1, an electric push rod 2, a slide seat 3, a self-locking connecting rod mechanism 4 and a guide wheel 5. Among them, the mounting seat 1 is used as the overall supporting structure of the guide mechanism, which is used to connect with the vehicle body 10 and is also used to install and support other components; the electric push rod 2 is fixedly connected to the vehicle body 10, and is used to drive the guide wheel 5 to extend into and exit the track of the main channel; the slide seat 3 is used to connect the mounting seat 1 and the guide wheel 5. Specifically, the guide wheel 5 can be rotatably connected to the bottom of the slide seat 3, and the slide seat 3 can be slidably connected to the mounting seat 1. The self-locking connecting rod mechanism 4 is installed on the mounting seat 1 to connect the output shaft of the electric push rod 2 and the slide seat 3. With the above scheme, when the output shaft of the electric push rod 2 is extended and retracted, the self-locking connecting rod mechanism 4 connected to the output shaft moves, and the self-locking connecting rod mechanism 4 drives the slide seat 3 to move up and down relative to the mounting seat 1, so that the guide wheel 5 can extend into and exit the track of the main channel.

[0036] Specifically, combined Figures 2 to 4 As shown, the self-locking linkage mechanism 4 of this embodiment includes a first linkage rod 41, a second linkage rod 42, a third linkage rod 43 and a fourth linkage rod 44. Among them, one end of the first linkage rod 41 is connected to the output shaft of the electric push rod 2, the other end of the first linkage rod 41 is hinged to one end of the second linkage rod 42, and the other end of the second linkage rod is hinged to the third linkage rod 43; one end of the third linkage rod 43 is hinged to the mounting seat 1, the other end of the third linkage rod 43 is hinged to one end of the fourth linkage rod 44, and the other end of the fourth linkage rod 44 is hinged to the slide seat 3.

[0037] Furthermore, if Figure 4 As shown, if the connection between the third linkage rod 43 and the mounting seat 1 is defined as the first connection, the connection between the third linkage rod 43 and the second linkage rod 42 is defined as the second connection, and the connection between the third linkage rod 43 and the fourth linkage rod 44 is defined as the third connection, the second connection of this embodiment is located between the first connection and the third connection. With the above scheme, when the electric push rod 2 extends to the bottom of the guide wheel 5 and contacts the guide rail, an inverted triangle is formed between the third linkage rod 43 and the fourth linkage rod 44 and self-locking is formed. At this time, the third linkage rod 43 abuts against the side wall of the groove of the cross beam of the vehicle body 10. When the guide wheel 5 is subjected to an upward or downward force, due to the self-locking of the connecting rod, the force will not be transmitted to the electric push rod 2, the self-locking connecting rod mechanism 4 itself is in a stable and inactive state, the guide wheel 5 will not leave the track, and at the same time, it can also protect the electric push rod 2.

[0038] like Figure 1As shown in the figure, a sliding shaft 6 is connected to the mounting base 1 of this embodiment. The sliding shaft 6 penetrates through the interior of the sliding seat 3, and a lead-free bearing (not shown) for sliding connection with the sliding shaft 6 is sleeved inside the sliding seat 3. With the above solution, the lead-free bearing can ensure that the sliding seat 3 slides up and down smoothly without jamming, enabling the guide wheel 5 to accurately reach both sides of the track for guiding. Moreover, the sliding mode of the lead-free bearing enables the guiding mechanism to withstand a large lateral force and maintain structural stability, thus extending the service life of the mechanism.

[0039] As Figure 5 shown in the figure, the guide wheel 5 of this embodiment has a hollow structure, and a bearing 7 is embedded inside it. The guide wheel 5 is connected to the sliding seat 3 through this bearing 7.

[0040] As Figure 1 shown in the figure, the electric push rod 2 of this embodiment is connected to the vehicle body 10 through a bracket 8.

[0041] In summary, the working process of the guiding mechanism with a self-locking function in this embodiment is as follows: When the four-way shuttle runs in the main channel, the output shaft of the electric push rod 2 extends, causing the guide wheel 5 to extend into the track of the main channel. As the four-way shuttle runs in the main channel, the guide wheel 5 rolls into contact with the inner side wall of the track, playing a guiding role. When the four-way shuttle switches to running in the cargo lane, the output shaft of the electric push rod 2 retracts, and the guide wheel 5 moves upward to avoid interfering with the track of the cargo lane, without affecting the running of the four-way shuttle in the cargo lane.

[0042] In the present invention, specific embodiments are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, based on the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A guiding mechanism with a self-locking function is installed on the vehicle body of a four-way shuttle vehicle, and is characterized in that Comprising: A mounting base for connecting with the vehicle body; An electric push rod fixedly connected to the vehicle body; A sliding seat slidably connected to the mounting base; A self-locking link mechanism mounted on the mounting base for connecting the output shaft of the electric push rod and the sliding seat; A guide wheel rotatably connected to the lower part of the sliding seat.

2. The guiding mechanism with a self-locking function according to claim 1, characterized in that, The self-locking link mechanism includes a first linkage rod, a second linkage rod, a third linkage rod and a fourth linkage rod; one end of the first linkage rod is connected to the output shaft of the electric push rod, and the other end of the first linkage rod is hinged to one end of the second linkage rod; one end of the third linkage rod is hinged to the mounting base, the other end of the third linkage rod is hinged to one end of the fourth linkage rod, and the other end of the fourth linkage rod is hinged to the sliding seat; the other end of the second linkage rod is hinged to the third linkage rod.

3. The guiding mechanism with a self-locking function according to claim 2, characterized in that, The third linkage rod and the mounting base have a first connection point, the third linkage rod and the second linkage rod have a second connection point, the third linkage rod and the fourth linkage rod have a third connection point, and the second connection point is located between the first connection point and the third connection point.

4. The guiding mechanism with a self-locking function according to claim 1, characterized in that, A sliding shaft is connected to the mounting base, the sliding shaft passes through the inside of the sliding seat, and a lead-free bearing for slidably connecting with the sliding shaft is sleeved on the sliding seat.

5. The guiding mechanism with a self-locking function according to claim 1, characterized in that, A bearing is embedded inside the guide wheel, and the guide wheel is connected to the sliding seat through the bearing.

6. The guiding mechanism with a self-locking function according to claim 1, characterized in that, The electric push rod is connected to the vehicle body through a bracket.

7. A four-way shuttle vehicle, characterized in that, Comprising a vehicle body and a guiding mechanism with self-locking function according to any one of claims 1 to 6, and the guiding mechanism with self-locking function is mounted on the vehicle body.

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