Walking mechanism of stacking machine

Abstract

The invention relates to the technical field of stackers, and particularly discloses a stacker walking mechanism which comprises a base and a guide sliding rail which are fixedly connected, a platform is arranged on the guide sliding rail in a reciprocating sliding mode, and a buffering mechanism is arranged on the base. The buffering mechanism comprises a shielding cover rotationally connected to the base, a protection plate elastically arranged on the base in a sliding mode and a linkage piece connected to the base in a sliding mode and linked with the shielding cover. When the platform is close to the initial position, the push-pull rod fixedly installed on the platform impacts the linkage piece to slide towards the outside of the base to drive the linkage piece to drive the shielding cover to rotate so that the shielding cover can cover the guide sliding rail while extruding the protection plate to elastically slide. When the platform moves to the initial position, the impact force of the platform is consumed by the buffering mechanism to protect the motor, and the impact force consumed by the platform can be used for driving the buffering mechanism to better prevent dust from falling on the guide sliding rail to reduce abrasion between the sliding block and the guide sliding rail when the stacking machine does not work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stacker, in particular to a walking mechanism of stacker. BACKGROUND

[0002] The walking mechanism of stacker is a core functional component in the automated warehouse, which is used to drive the stacker to move along the set track to realize the storage and retrieval of goods.

[0003] Since the walking mechanism of stacker is driven by the motor to rotate the gear on the rack, the inertia of the mechanical hand and the electric box installed on the platform is large due to the large weight, which easily causes damage to the motor when the platform stops moving. Therefore, the prior art discloses a patent with application number CN202320171267.1 and the name of "a walking mechanism of stacker", which includes a rack, a guide rail, a rack, a bottom plate, a driving motor and a blocking assembly. The blocking assembly includes a driving cylinder and a blocking block, the blocking block has a blocking part that can extend into the gap between the teeth of the rack. When the bottom plate needs to be stopped suddenly, the extension shaft of the driving cylinder is controlled to extend, so that the blocking block moves towards the direction of the rack, and the blocking part is engaged with the rack, thereby limiting the bottom plate, overcoming the impact of inertia on the motor, and effectively reducing the damage to the motor.

[0004] But in the actual work process, the existing walking mechanism has the common shortcomings: because the walking track of the platform is along the length direction of the guide rail, and because the stacker is in the workshop, it is difficult to meet the requirements of a dust-free workshop, when the stacker does not work for a long time, the dust in the workshop space will continue to fall on the guide rail, when the walking mechanism is started again, the existence of dust will greatly increase the wear between the sliding block and the guide rail, thereby reducing the service life of the sliding block and the guide rail, in order to prevent dust from accumulating on the guide rail when the stacker is not working, a dust cover is usually fixedly installed to shield the guide rail, but the dust cover will hinder the operation of the platform and hinder the maintenance work such as oiling of the guide rail in the later period, in order to make the dust cover not hinder the operation of the platform and facilitate the maintenance work such as oiling in the later period, the dust cover must leave a large enough space in the length direction of the guide rail, and the space is left, and the corresponding position of the guide rail in the entire length direction is exposed, which still contacts with the dust, thereby resulting in poor dustproof effect. Moreover, because the mechanical hand and the electric box are fixedly installed on the platform, when the platform moves to the initial position and suddenly stops walking, it will have a large impact force (i.e. inertia force), which will be transferred to the motor, thereby easily damaging the motor, in order to reduce the impact force of the platform and thereby reduce the damage to the motor, a buffer mechanism such as an elastic buffer mechanism for collision of the stacker or a locking mechanism as in the above-mentioned patent is usually installed, the purpose is to reduce the running speed of the platform, so as to consume part of the impact force of the platform, thereby reducing the damage to the motor, but the existing buffer mechanism can consume the impact force of the platform and thereby protect the motor, but the impact force consumed by the platform is wasted. Therefore, how to utilize the buffer mechanism to consume the impact force of the platform to protect the motor when the platform moves to the initial position, and how to utilize the impact force of the platform to drive the buffer mechanism to better prevent dust from falling on the guide rail when the stacker is not working to reduce the wear between the sliding block and the guide rail are technical problems to be solved. SUMMARY

[0005] The present application aims to provide a stacker walking mechanism to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a stacker walking mechanism, comprising a fixedly connected base and a guide rail, a platform is reciprocally slidably arranged on the guide rail, a buffer mechanism is arranged on the base, The buffer mechanism comprises a shielding cover rotatably connected to the base, a protective plate elastically slidably arranged on the base, and a linkage slidably connected to the base and linked with the shielding cover; When the platform is close to the initial position, the push-pull rod fixedly installed on the platform hits the linkage to slide to the outside of the base, drives the linkage to rotate the shielding cover to make the shielding cover extrude the elastic sliding of the protection plate and cover the guide slide rail at the same time; When the platform is far away from the initial position, the push-pull rod pulls the linkage to slide to the inside of the base to make the shielding cover rotate and open.

[0007] The above-mentioned stacker walking mechanism, a plurality of support rods are elastically inserted into the base, and the top of the plurality of support rods is abutted after the shielding cover is rotated and opened.

[0008] The above-mentioned stacker walking mechanism, a plurality of first roller assemblies are installed on the platform, and the first roller assemblies are extruded and matched with the top of the opened shielding cover in the moving process of the platform, so that the opened shielding cover shares the downward pressure borne by the guide slide rail.

[0009] The above-mentioned stacker walking mechanism, the protection plate is arc-shaped, the outer convex arc surface of the protection plate faces away from the corresponding guide slide rail, and the height of the shielding cover and the protection plate is greater than that of the guide slide rail when the shielding cover is opened, and the guide slide rail is located between the shielding cover and the protection plate to protect the left and right sides of the guide slide rail.

[0010] The above-mentioned stacker walking mechanism, the linkage comprises a hitting plate, a power input end and a power output end, the power input end is rotationally connected with the hitting plate, and the power output end is fixedly connected with the hitting plate, a baffle limiting the hitting plate is fixedly installed on the base, the hitting plate is located between the baffle and the base, and the power input end is in push-pull cooperation with the push-pull rod.

[0011] The above-mentioned stacker walking mechanism, the power input end comprises a pull plate, a push plate and a limb plate which are fixedly connected and arranged in a circumferential direction, the free end of the push plate extends to the outside of the free end of the pull plate, and the connection portions of the pull plate, the push plate and the limb plate are rotationally connected with a plug-in seat fixedly installed on the hitting plate through a pin shaft.

[0012] The above-mentioned stacker walking mechanism, the free end of the limb plate is rotationally installed with a rotating roller in abutting cooperation with the baffle.

[0013] The above-mentioned stacker walking mechanism, the power output end of the linkage comprises a longitudinal slide plate in sliding connection with the base, the longitudinal slide plate is connected with the hitting plate, a transverse slide plate is slidingly arranged on the base, the longitudinal slide plate is linked with the shielding cover through the transverse slide plate, when the push-pull rod hits the power input end, the longitudinal slide plate is pulled to slide by the hitting plate, the transverse slide plate is pushed to slide by the longitudinal slide plate, so that the transverse slide plate drives the shielding cover to rotate.

[0014] The rotating shaft of the shielding cover is fixedly installed with a plurality of gears, and the transverse sliding plate is fixedly installed with a plurality of row gears corresponding to the plurality of gears.

[0015] The impact plate is fixedly installed with an upper auxiliary plate, the upper auxiliary plate is fixedly installed with an upper sliding block, the baffle is fixedly installed with a lower auxiliary plate, the lower auxiliary plate is fixedly installed with an upper sliding rail in sliding cooperation with the upper sliding block, and the power input end is located between the upper sliding rail and the guide sliding rail.

[0016] Compared with the prior art, the present application has the following beneficial effects: In the present application, through the improvement of the buffering mechanism, when the platform returns to the initial position, the platform collides with the linkage in the buffering mechanism, the linkage drives the shielding cover in the buffering mechanism to rotate towards the protective plate after the collision, the protective plate is elastically slidably arranged, in the process of rotating of the shielding cover, the shielding cover collides with the protective plate and presses down the protective plate to elastically slide downward, the elastic sliding resistance of the protective plate is used to realize the consumption of the impact force of the platform to reduce the inertia of the platform when stopping moving to protect the driving motor, and the corresponding guide sliding rail is covered, based on the 'Fang' shaped structure of the shielding cover, the top surface, the left side and the right side of the guide sliding rail are covered, so that the guide sliding rail has better dustproof effect. It can be seen that, on the basis of protecting the motor by using the buffering mechanism to consume the impact force of the platform when the platform moves to the initial position, the impact force consumed by the platform is also used to drive the buffering mechanism to better prevent dust from falling on the guide sliding rail when the stacking machine is not working, so as to reduce the wear between the sliding block and the guide sliding rail, and the defects in the prior art can be effectively solved. In the present application, in addition to the shielding cover in the buffering mechanism playing a role of shielding dust on the guide sliding rail, the shielding cover also ingeniously supports the platform when the shielding cover is in the open state, so as to play a role of sharing the downward pressure borne by the guide sliding rail, to reduce the friction force between the guide sliding rail and the guide sliding block, to further reduce the wear of the guide sliding rail, to improve the service life of the guide sliding rail, and to make the shielding cover play an unexpected technical effect. In the actual cargo transportation process, sand and stones fall on the cargo, when the cargo with sand and stones falling on the top is moved to the stacking machine, the sand and stones are easy to fall and splash on the guide sliding rail to make the solid particles left by the sand and stones splash on the guide sliding rail, causing the wear of the guide sliding rail to increase when the guide sliding block passes through, and in the present application, when the sand and stones fall from the cargo, the sand and stones are blocked by the protective plate and the shielding cover in the open state, and cannot splash on the guide sliding rail, so that the shielding cover and the protective plate jointly protect the guide sliding rail, and it can be seen that the shielding cover and the protective plate in the present application also play a role of protecting the guide sliding rail. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A three-dimensional structural diagram of the stacker crane traveling mechanism, the robotic arm assembly, and the electrical box when the platform is not in its initial position, as provided in this embodiment of the invention; Figure 2 Provided for embodiments of the present invention Figure 1 A magnified structural diagram of part A in the diagram; Figure 3 Provided for embodiments of the present invention Figure 1 A schematic diagram of the stacker crane's walking mechanism after removing the robotic arm components and the electrical box; Figure 4 Provided for embodiments of the present invention Figure 3 A schematic diagram of the enlarged structure of part B in the diagram; Figure 5 Provided for embodiments of the present invention Figure 3 Another perspective structural diagram of the stacker crane's traveling mechanism; Figure 6 Provided for embodiments of the present invention Figure 5 A schematic diagram of the enlarged structure of part C in the diagram; Figure 7 This is a partial structural diagram of the baffle, impact plate, power input end and connecting plate being separated from the base according to an embodiment of the present invention; Figure 8 This is a partial structural diagram of the end plate near the buffer mechanism being separated from the base according to an embodiment of the present invention; Figure 9 A schematic diagram of the structure between the power output end of the linkage component and the transverse sliding plate, the shield, and the protective plate provided in an embodiment of the present invention; Figure 10 Provided for embodiments of the present invention Figure 9 A diagram illustrating the split structure in the diagram; Figure 11 Provided for embodiments of the present invention Figure 10 A schematic diagram of the enlarged structure of part D in the diagram; Figure 12 This is a top view of the structure when the position of the second roller assembly corresponds to the plane of the inner groove in an embodiment of the present invention; Figure 13 Provided for embodiments of the present invention Figure 12 A magnified structural diagram of part E in the diagram; Figure 14Contrast structure schematic diagram of the platform provided by the embodiment of the present application not being in the initial position and the platform being in the initial position; Figure 15 Contrast structure schematic diagram of the platform provided by the embodiment of the present application not being in the initial position and the platform being in the initial position; Figure 14 Enlarged structure schematic diagram of the F part in the platform not being in the initial position; Figure 16 Enlarged structure schematic diagram of the F part in the platform not being in the initial position; Figure 14 Enlarged structure schematic diagram of the G part in the platform being in the initial position; Figure 17 Enlarged structure schematic diagram of the F part in the platform not being in the initial position; Figure 18 Enlarged structure schematic diagram of the F part in the platform not being in the initial position; Figure 17 Enlarged structure schematic diagram of the F part in the platform not being in the initial position; Figure 19 Enlarged structure schematic diagram of the F part in the platform not being in the initial position.

[0019] Mark explanation: 1, base; 101, arc-shaped groove; 102, vertical groove; 103, connecting plate; 2, shielding cover; 201, rotating shaft; 202, gear; 3, protection plate; 4, arc-shaped compression spring; 5, longitudinal sliding plate; 501, lower sliding block; 502, second roller assembly; 6, transverse sliding plate; 601, guide groove; 602, row of teeth; 603, inner recess; 6031, flat surface; 6032, inclined surface; 7, support rod; 8, power input end; 801, pull plate; 802, push plate; 803, limb plate; 804, pin shaft; 805, rotating roller; 9, impact plate; 901, upper auxiliary plate; 902, upper sliding block; 903, plug-in seat; 904, notch; 10, baffle; 1001, lower auxiliary plate; 1002, upper sliding rail; 11, push-pull rod; 12, fixed plate; 13, upper and lower support plate; 14, guide sliding rail; 15, guide sliding block; 16, first roller assembly; 17, platform; 18, mechanical hand assembly; 19, electric box; 20, rack; 21, driving motor; 2101, walking gear; 22, end plate; 2201, avoiding hole; 23, lower sliding rail; 24, transverse sliding rail; 25, support compression spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0021] Please refer to Figures 1-19The embodiment provides a walking mechanism of a stacker, which comprises a fixedly connected base 1 and a guide slide rail 14, a platform 17 is arranged on the guide slide rail 14 and is arranged to reciprocatingly slide, and a buffer mechanism is arranged on the base 1. The buffer mechanism comprises a shielding cover 2 which is rotationally connected to the base 1, a protection plate 3 which is elastically and slidably arranged on the base 1, and a linkage member which is slidably connected to the base 1 and is linked with the shielding cover 2. When the platform 17 is close to the initial position, a push-pull rod 11 which is fixedly arranged on the platform 17 hits the linkage member to slide to the outside of the base 1, drives the linkage member to drive the shielding cover 2 to rotate, so that the shielding cover 2 extrudes the protection plate 3 to elastically slide and covers the guide slide rail 14. When the platform 17 is away from the initial position, the push-pull rod 11 pulls the linkage member to slide to the inside of the base 1, so that the shielding cover 2 rotates to open.

[0022] The walking mechanism of the stacker is used for driving the reciprocating movement of the stacker, so that the conveying of goods is realized. The positions and directions related in the embodiment are relative to the drawings. The initial position related in the embodiment refers to the position of the walking mechanism of the stacker before the stacker conveys goods or when the stacker is not working. The initial position is usually located at a roadway opening. At this time, the hitting plate 9 abuts against the baffle 10, and the rotating roller 805 abuts against the side surface of the hitting plate 9. Specifically, the number of the guide slide rails 14 is one or more, preferably two. The two guide slide rails 14 are fixedly arranged on the top of the base 1 in parallel. At least one guide sliding block 15 is slidably arranged on each guide slide rail 14. The plurality of guide sliding blocks 15 are fixedly arranged on the bottom of the platform 17. The sliding connection of the guide sliding blocks 15 and the guide slide rails 14 realizes the sliding of the platform 17 and the guide slide rails 14. The mechanical hand assembly 18 and the electric box 19 are fixedly arranged on the platform 17. The mechanical hand assembly 18 and the electric box 19 are prior art, and details are not described herein. The driving motor 21 is fixedly arranged on the platform 17. The walking gear 2101 is coaxially fixedly arranged on the output shaft of the driving motor 21. The rack 20 is fixedly arranged on the top of the base 1 and is engaged with the walking gear 2101. The rack 20 is parallel to the guide slide rail 14. The driving motor 21 can be positively rotated and reversely rotated. Based on the engagement of the walking gear 2101 and the rack 20, the driving motor 21 is started to be positively rotated and reversely rotated to drive the walking gear 2101 to synchronously rotate with the output shaft of the driving motor 21, so as to drive the platform 17 to reciprocatingly slide along the guide slide rail 14. The specific structure and operation process of the driving motor 21 and the rack 20 are prior art, and details are not described herein. The buffer mechanism is arranged at the end of the base 1. The buffer mechanism in the embodiment can collide with the platform 17 walking to the initial position, so as to buffer the platform 17, consume the impact force of the platform 17, and also use the consumed impact force of the platform 17 to change the structure state of the buffer mechanism, so that the buffer mechanism can shield dust for the guide slide rail.

[0023] The buffering mechanism comprises the shielding covers 2, the number of the shielding covers 2 is two and corresponds to the two guide rails 14 one by one, the two guide rails 14 are located between the two shielding covers 2, the two shielding covers 2 are symmetrically arranged, the shielding cover 2 is in the shape of a Chinese character and is parallel to the guide rail 14, the rotating shaft 201 is fixedly inserted on the shielding cover 2, the rotating shaft 201 is rotationally connected with the base 1, so as to realize the rotation connection between the shielding cover 2 and the base 1, the shielding cover 2 is located at the top of the base 1, when the goods need to be transported, the driving motor 21 is started to drive the platform 17 to move away from the initial position, at this time, the shielding cover 2 is in an open state, the guide rail 14 is exposed outside, and the shielding cover 2 is staggered with the platform 17, the mechanical arm assembly 18 and the electric box 19 in the width direction of the guide rail 14, so that the shielding cover 2 does not hinder the movement of the platform 17, the mechanical arm assembly 18 and the electric box 19; when the platform 17 moves back to the initial position, the shielding cover 2 is staggered with the platform 17, the mechanical arm assembly 18 and the electric box 19 in the length direction of the guide rail 14, and the shielding cover 2 is driven to rotate from the open state to the closed state by the impact force consumed by the platform 17, in this process, the shielding cover 2 collides with the top of the protective plate 3 on one side and extrudes the protective plate 3 to elastically slide downward to consume the impact force of the platform 17 by the elastic sliding resistance of the protective plate 3, and covers the corresponding guide rail 14 on the other side, based on the shielding cover 2 in the shape of a Chinese character, the top surface, the left side and the right side of the guide rail 14 are covered, compared with the prior art, the guide rail 14 does not have space in the length direction, because the shielding cover 2 is automatically opened when the platform 17 moves to transport the goods, and does not hinder the movement of the platform 17, so that the guide rail 14 can be better shielded in the length direction by the shielding cover 2 when the stacker is not working, thus having a better dustproof effect on the guide rail 14. Thus, the buffering mechanism in the application not only realizes the buffering of the platform 17, thereby protecting the driving motor 21, but also realizes the shielding of the guide rail 14, so that the guide rail 14 is covered during the non-working period of the stacker, thereby better preventing dust from falling on the guide rail 14. When the goods need to be transported, the platform 17 moves away from the initial position, the push-pull rod 11 first pulls the linkage to slide into the base 1, at this time, the shielding cover 2 is driven to rotate from the closed state to the open state based on the elastic sliding force of the protective plate 3, in this process, the platform 17, the mechanical arm assembly 18 and the electric box 19 are staggered with the shielding cover 2 in the length direction of the guide rail 14, so that the platform 17, the mechanical arm assembly 18 and the electric box 19 do not hinder the rotation of the shielding cover 2 to the open state, and then the platform 17 moves above the shielding cover 2, the platform 17 is staggered with the shielding cover 2 in the height direction, so that the shielding cover 2 does not hinder the movement of the platform 17.

[0024] In the process of returning to the initial position, the rotation force of the shielding cover 2 is derived from the impact force of the platform 17, which is first transmitted to the linkage, which is in sliding connection with the base 1 and linked with the shielding cover 2. When the platform 17 hits the linkage to make the linkage slide towards the outside of the base 1, the linkage drives the shielding cover 2 to rotate towards the protective plate 3, so that the shielding cover 2 collides with the protective plate 3 and presses the protective plate 3 to slide downward elastically, and covers the guide rail 14 at the same time.

[0025] The number of protective plates 3 is two and corresponds to two shielding covers 2 one by one. The two protective plates 3 are located between the two guide rails 14, and the protective plate 3 is staggered in the height direction with the platform 17 and staggered in the height direction and the width direction of the guide rail 14 with the guide block 15, so that the protective plate 3 will not hinder the operation of the platform 17. The protective plate 3 is arc-shaped, and the axis of the protective plate 3 is collinear with the axis of the rotating shaft 201. The base 1 is provided with an arc-shaped groove 101 concentric with the protective plate 3. The number of arc-shaped grooves 101 is the same as that of the protective plate 3 and is in one-to-one sliding insertion with the protective plate 3. The protective plate 3 slides along the arc-shaped groove 101 to make the protective plate 3 rotate along its own axis when sliding. When the end surface of the shielding cover 2 collides with the end surface of the protective plate 3, the end surface of the shielding cover 2 is in contact with the end surface of the protective plate 3, and the end surface of the shielding cover 2 is always in contact with the end surface of the protective plate 3 when the shielding cover 2 presses the protective plate 3 to slide downward. When the top surface of the protective plate 3 is flush with the top surface of the base 1, the shielding cover 2 stops rotating, and the shielding cover 2 completes the closing work at this time, so that the arc-shaped compression spring 4 is more fully shielded. A plurality of arc-shaped compression springs 4 are arranged between the inner wall of the arc-shaped groove 101 and the 303. One end of the arc-shaped compression spring 4 is fixedly connected with the bottom surface of the protective plate 3, and the other end is fixedly connected with the inner wall of the arc-shaped groove 101. The elastic sliding of the protective plate 3 is realized based on the elastic force of the arc-shaped compression spring 4.

[0026] From the above structure, it can be seen that, in the present application, through the improvement of the buffering mechanism, when the platform 17 returns to the initial position, the platform 17 collides with the linkage in the buffering mechanism, and after the collision, the linkage drives the shielding cover 2 in the buffering mechanism to rotate towards the protective plate 3, and the protective plate 3 is elastically slidably arranged, and in the process of rotating the shielding cover 2, the shielding cover 2 collides with the protective plate 3 and presses down the protective plate 3 to elastically slide down, and the elastic sliding resistance of the protective plate 3 is used to realize the consumption of the impact force of the platform 17 to reduce the inertia of the platform 17 when it stops moving to protect the driving motor 21, and the corresponding guide slide rail 14 is covered, based on the “F” shaped structure of the shielding cover 2, so that the top surface, left side and right side of the guide slide rail 14 are covered, so that the guide slide rail 14 has better dustproof effect. It can be seen that, on the basis of the present application, the impact force of the platform is consumed by the buffering mechanism when the platform moves to the initial position to protect the motor, and the impact force consumed by the platform is used to drive the buffering mechanism to better prevent dust from falling on the guide slide rail when the stacking machine does not work to reduce the wear between the sliding block and the guide slide rail, which can effectively solve the problems in the prior art.

[0027] In the embodiment, a plurality of support rods 7 are elastically inserted into the base 1, and the shielding cover 2 collides with the top of the plurality of support rods 7 after being rotated and opened. Specifically, the base 1 is provided with two groups of vertical grooves 102 corresponding to two shielding covers 2, and each group of vertical grooves 102 has a plurality of vertical grooves 102, and each vertical groove 102 is slidably inserted with a support rod 7. A support spring 25 is installed between the support rod 7 and the corresponding vertical groove 102, and the support spring 25 is located in the vertical groove 102. One end of the support spring 25 is fixedly connected with the bottom of the support rod 7, and the other end is fixedly connected with the inside of the vertical groove 102. The top of the support rod 7 is fixedly installed with a rubber pad (not shown in the figure), and the rubber pad protrudes outside the vertical groove 102. When the shielding cover 2 is rotated from the closed state to the open state, the shielding cover 2 collides with the rubber pad on the top of the plurality of support rods 7. Based on the elastic force of the support spring 25 and the setting of the rubber pad, the support rod 7 plays a role in buffering the shielding cover 2.

[0028] Further, a plurality of first roller assemblies 16 are installed on the platform 17, the first roller assemblies 16 comprise a first wheel frame and a first wheel connected in rotation, and the first wheel of the first roller assembly 16 is in extrusion fit with the top of the opened shielding cover 2 in the moving process of the platform 17, so as to make the opened shielding cover 2 share the downward pressure borne by the guide rail 14. Specifically, the first roller assemblies 16 are divided into two groups, the first wheel frames of the two groups of first roller assemblies 16 are fixedly installed on the left and right sides of the platform 17 one by one, and the first wheels on the two groups of first roller assemblies 16 are one-to-one corresponding to the two shielding covers 2. When the driving motor 21 drives the platform 17 to move from the initial position to the remote position, the platform 17 first pulls the linkage through the push-pull rod 11 to make the linkage slide towards the inside of the base 1, at this time the elastic force of the arc-shaped compression spring 4 is released and pushes the protective plate 3 to slide upwards to make the protective plate 3 push the shielding cover 2 to rotate from the closed state to the opened state, then the shielding cover 2 abuts against the top of the support rod 7 to limit the shielding cover 2, and then with the continuous movement of the platform 17, the first wheels of a plurality of first roller assemblies 16 in the two groups of first roller assemblies 16 are moved one by one to the top of the shielding cover 2 and extrude the shielding cover 2 downwards, so that the shielding cover 2 extrudes the support rod 7 to compress the support compression spring 25, at this time the shielding cover 2 supports the first roller assembly 16 under the support action of the support compression spring 25, and the first roller assembly 16 is fixedly installed on the platform 17, so that the shielding cover 2 supports the platform 17. Since only the guide rail 14 supports the platform 17 in the prior art, the downward pressure borne by the guide rail 14 is large, so that the friction between the guide rail 14 and the guide block 15 is large, which increases the wear of the guide rail 14. In the embodiment, the shielding cover 2 in the buffer mechanism not only plays a role in shielding dust for the guide rail 14, but also supports the platform 17 when the shielding cover 2 is in the opened state, thereby playing a role in sharing the downward pressure borne by the guide rail 14, so as to reduce the friction between the guide rail 14 and the guide block 15, further reduce the wear of the guide rail 14, improve the service life of the guide rail 14, and make the shielding cover 2 achieve unexpected technical effects.

[0029] In the embodiment, the protective plate 3 is arc-shaped, the outer convex arc surface of the protective plate 3 faces away from the corresponding guide slide rail 14, when the shielding cover 2 is opened, the height of the shielding cover 2 and the protective plate 3 are both greater than the guide slide rail 14, and the guide slide rail 14 is located between the shielding cover 2 and the protective plate 3 so as to protect the left and right sides of the guide slide rail 14. In the actual cargo transportation process, sand and stones fall on the cargo, when the cargo with sand and stones falling thereon is moved to the stacking machine, the sand and stones are easy to fall and splash on the guide slide rail 14, so that the sand and stones splash and leave solid particles adhered on the guide slide rail 14, which causes the guide slide rail 14 to be worn when the guide slide block 15 passes. In the present application, when sand and stones fall from the cargo, the sand and stones are blocked by the protective plate 3 and in the opened state, and cannot splash on the guide slide rail 14, so that the shielding cover 2 and the protective plate 3 jointly protect the guide slide rail 14. It can be seen that the shielding cover 2 and the protective plate 3 in the present application also have the effect of protecting the guide slide rail 14.

[0030] In the embodiment, the linkage member includes the impact plate 9, the power input end 8, and the power output end. The power input end 8 is rotationally connected with the impact plate 9, and the power output end is fixedly connected with the impact plate 9. The base 1 is fixedly installed with the baffle 10 limiting the impact plate 9 through two connecting plates 103. The two connecting plates 103 are fixedly installed on the two sides of the base 1 and fixedly connected with the two sides of the baffle 10. The impact plate 9 is located between the baffle 10 and the base 1. The power input end 8 is in push-pull cooperation with the push-pull rod 11. The power input end 8 is two and symmetrically rotationally installed on the impact plate 9. The fixed plate 12 is fixedly installed on the platform 17 and fixedly connected with the electric box 19. The two groups of upper and lower supporting plates 13 are fixedly installed on the fixed plate 12. The two groups of upper and lower supporting plates 13 are rotationally installed with the push-pull rod 11. The two push-pull rods 11 are in one-to-one push-pull cooperation with the two power input ends 8 of the linkage member, so as to improve the force balance of the linkage member. The power output end of the linkage member is also two and in one-to-one linkage with the two shielding covers 2.

[0031] The power input end 8 comprises a fixedly connected and circumferentially arranged pull plate 801, a push plate 802, and a limb plate 803, and the free end of the limb plate 803 is rotatably installed with a rotating roller 805 abutting against the side surface of the baffle 10. The free end of the push plate 802 extends to the outside of the free end of the pull plate 801, so that when the platform 17 is not in the initial position, the push-pull rod 11 is misaligned with the pull plate 801 but not misaligned with the push plate 802, so that when the platform 17 drives the push-pull rod 11 to move towards the power input end 8, the push-pull rod 11 will hit the push plate 802 after passing the pull plate 801, and the connection between the pull plate 801, the push plate 802, and the limb plate 803 is rotatably connected to the plug-in seat 903 fixedly installed on the impact plate 9 through the pin shaft 804, and when the push-pull rod 11 hits the push plate 802, it drives the push plate 802, the pull plate 801, and the limb plate 803 to rotate around the pin shaft 804 until the push plate 802 abuts against the side surface of the impact plate 9, at which time the pull plate 801 is not misaligned with the push-pull rod 11, so that when the push-pull rod 11 moves away from the power input end 8, the push-pull rod 11 abuts against the side surface of the pull plate 801 and drives the pull plate 801, the push plate 802, and the limb plate 803 to rotate in the opposite direction around the pin shaft 804 until the push-pull rod 11 is misaligned with the pull plate 801, so that the push-pull rod 11 is separated from the power input end 8. When the push plate 802 abuts against the side surface of the impact plate 9, the platform 17 continues to move with the push-pull rod 11, so that the push plate 802 cannot continue to rotate, at which time the push plate 802 drives the impact plate 9 to move towards the baffle 10 until the impact plate 9 collides with the baffle 10, at which time the rotating roller 805 also abuts against the side surface of the impact plate 9, at which time the platform 17 is in the initial position. In the process of moving the impact plate 9 driven by the push plate 802, the power output end of the linkage slides towards the outside of the base 1 to drive the shielding cover 2 to rotate towards the protective plate 3 to achieve closing. When the platform 17 moves away from the initial position, the platform 17 abuts against the pull plate 801 and drives the pull plate 801 to rotate around the pin shaft 804, and the rotation of the pull plate 801 drives the push plate 802 and the limb plate 803 to rotate synchronously, and the rotation of the limb plate 803 drives the rotating roller 805 to roll on the side surface of the baffle 10, and since the baffle 10 is fixedly installed, the limb plate 803 drives the impact plate 9 to continuously move away from the baffle 10 until the push-pull rod 11 is misaligned with the pull plate 801, and in this process, the power output end of the linkage slides towards the inside of the base 1 to drive the shielding cover 2 to rotate away from the protective plate 3 to achieve opening.

[0032] More specifically, the pin shaft 804 is rotatably inserted into the socket 903, and the pin shaft 804 is fixedly installed or rotatably inserted into the connection between the pull plate 801, the push plate 802 and the limb plate 803. The impact plate 9 is provided with a notch 904 corresponding to each of the two limb plates 803 on both sides of the impact plate 9, and the limb plate 803 penetrates through the corresponding notch 904. The inner wall of the notch 904 on both sides of the impact plate 9 is fixedly attached with a rubber layer (not shown in the figure), and the rubber layer is pressed against the top surface and the bottom surface of the limb plate 803 so that the limb plate 803 has a large friction force when it penetrates through the notch 904 on the impact plate 9. When the push-pull rod 11 moves away from the linkage to pull the pull plate 801 to rotate, until the push-pull rod 11 is misaligned with the pull plate 801, the friction force generated between the limb plate 803 and the rubber layer based on the extrusion between them makes the limb plate 803 not rotate, thereby making the pull plate 801 remain misaligned with the push-pull rod 11, so that the push-pull rod 11 will not contact the pull plate 801 when it moves towards the linkage next time.

[0033] The power output end of the linkage includes a longitudinal sliding plate 5 that is in sliding connection with the base 1, and the longitudinal sliding plate 5 is fixedly connected or rotatably connected with the impact plate 9. As long as the impact plate 9 can move to drive the longitudinal sliding plate 5 to move synchronously, the longitudinal sliding plate 5 can slide towards the outside of the base 1 when the impact plate 9 is driven to move by the push plate 802, and the longitudinal sliding plate 5 can slide towards the inside of the base 1 when the impact plate 9 moves away from the baffle 10 under the rotation force of the limb plate 803.

[0034] A horizontal sliding plate 6 is slidably mounted on the base 1. The vertical sliding plate 5 is linked to the shield 2 through the horizontal sliding plate 6. When the platform 17 drives the push-pull rod 11 to impact the power input end 8, it drives the impact plate 9 to pull the vertical sliding plate 5 to slide towards the outside of the base 1. At this time, the vertical sliding plate 5 pushes the horizontal sliding plate 6 to slide so that the horizontal sliding plate 6 drives the shield 2 to rotate towards the protective plate 3. Specifically, two lower slide rails 23, corresponding one-to-one with the longitudinal slide plate 5 in the two power output ends of the linkage component, are fixedly installed on the base 1. Multiple lower slide blocks 501, which are slidably inserted into the lower slide rails 23, are fixedly installed on the bottom of the longitudinal slide plate 5. The sliding connection between the longitudinal slide plate 5 and the base 1 is achieved by the sliding insertion of the lower slide blocks 501 and the lower slide rails 23. Two sets of transverse slide rails 24, corresponding one-to-one with the transverse slide plate 6 in the two power output ends of the linkage component, are fixedly installed on the base 1. Each set of transverse slide rails 24 has multiple transverse slide rails 24 arranged in an array along the length direction of the base 1. Multiple guide grooves 601, which are slidably inserted into the bottom of the transverse slide plate 6, are corresponding one-to-one with the multiple transverse slide rails 24. The sliding connection between the transverse slide plate 6 and the base 1 is achieved by the sliding insertion of the transverse slide rails 24 and the guide grooves 601. The longitudinal slide plate 5 slides along the length of the lower slide rail 23, and the transverse slide plate 6 slides along the length of the transverse slide rail 24. The length of the transverse slide rail 24 is perpendicular to the length of the guide slide rail 14, and the length of the lower slide rail 23 is parallel to the length of the base 1, so that the sliding direction of the transverse slide plate 6 is perpendicular to the sliding direction of the longitudinal slide plate 5.

[0035] Furthermore, multiple gears 202 are fixedly mounted on the rotating shaft 201 of the shield 2. These gears 202 are coaxial with the shield 2. Multiple toothed racks 602 are fixedly mounted on the transverse slide plate 6, each meshing with one of the gears 202. When the transverse slide plate 6 slides, the meshing of the toothed racks 602 with the gears 202 causes the transverse slide plate 6 to rotate. Similarly, when the shield 2 rotates, it also causes the transverse slide plate 6 to slide. By setting multiple gears 202 and multiple toothed racks 602, the force points of the shield 2 are increased, making it easier for the shield 2 to be driven to rotate by the transverse slide plate 6.

[0036] The specific implementation manner that the longitudinal sliding plate 5 drives the transverse sliding plate 6 to slide is that a plurality of second roller assembly 502 are fixedly installed on the side, close to the transverse sliding plate 6, of the longitudinal sliding plate 5, the plurality of second roller assembly 502 are equidistantly arranged along the length direction of the longitudinal sliding plate 5, the second roller assembly 502 comprises a second wheel frame and a second wheel which are rotationally connected, the second wheel frame of the second roller assembly 502 is fixedly installed on the side of the longitudinal sliding plate 5, the second wheel on the second roller assembly 502 is in a horizontal state, i.e. the axis of the second wheel on the second roller assembly 502 is in a vertical direction, the side, close to the longitudinal sliding plate 5, of the transverse sliding plate 6 is formed with an inner groove 603 corresponding to the plurality of second roller assembly 502 one by one, the inner wall of the inner groove 603 comprises a plane 6031 and an inclined surface 6032 which are arranged in sequence, and the inclined surface 6032 is located between the plane 6031 and the side, close to the longitudinal sliding plate 5, of the transverse sliding plate 6. The second wheel on the second roller assembly 502 is in two position states corresponding to the plane 6031 and abutting against the side, close to the longitudinal sliding plate 5, of the transverse sliding plate 6.When the platform 17 needs to move away from the initial position to the far place, the platform 17 drives the push-pull rod 11 to pull the power input end 8 to make the impact plate 9 move away from the baffle 10 until the push-pull rod 11 is disengaged from the pull plate 801, in the process, the impact plate 9 drives the longitudinal slide plate 5 to slide to the inside of the base 1, so that the second wheels on the second roller assembly 502 correspond to the plane 6031, at this time, the transverse slide plate 6 has a space to slide towards the longitudinal slide plate 5, based on the elastic force of the arc-shaped compression spring 4, the protective plate 3 pushes the shielding cover 2 to rotate away from the protective plate 3, in the process, based on the meshing of the gear 202 and the row of teeth 602, the shielding cover 2 drives the transverse slide plate 6 to slide along the transverse slide rail 24 to the longitudinal slide plate 5, so that the plane 6031 continuously approaches the second wheels on the second roller assembly 502, until the shielding cover 2 and the supporting rod 7 abut, the plane 6031 and the second roller assembly 502 are still not abutted, in the process, the shielding cover 2 is automatically rotated from the closed state to the open state; when the platform 17 drives the push-pull rod 11 to impact the power input end 8, the push-pull rod 11 drives the push plate 802 to push the impact plate 9 to move towards the baffle 10, the impact plate 9 drives the longitudinal slide plate 5 to slide towards the outside of the base 1, the longitudinal slide plate 5 drives the plurality of second roller assemblies 502 to move synchronously, so that the second wheels on the second roller assembly 502 gradually move from the position corresponding to the plane 6031 to the inclined surface 6032 and abut with the inclined surface 6032, based on the inclined design of the inclined surface 6032, the second roller assembly 502 pushes the transverse slide plate 6 to slide along the transverse slide rail 24 away from the longitudinal slide plate 5, based on the meshing of the row of teeth 602 and the gear 202, when the transverse slide plate 6 slides away from the longitudinal slide plate 5, the shielding cover 2 is driven to rotate towards the protective plate 3 and continuously press down the protective plate 3 to elastically slide, when the second wheels on the second roller assembly 502 move from the inclined surface 6032 to the side of the transverse slide plate 6 close to the longitudinal slide plate 5, the shielding cover 2 pushes the protective plate 3 to elastically slide down to the top surface of the protective plate 3 flush with the top surface of the base 1, the side of the transverse slide plate 6 close to the longitudinal slide plate 5 is perpendicular to the axis of the second wheels on the second roller assembly 502, at this time, the second roller assembly 502 limits the transverse slide plate 6, so that the transverse slide plate 6 cannot continue to move towards the longitudinal slide plate 5, so that the compression elastic force of the arc-shaped compression spring 4 is locked, and the shielding cover 2 remains in the state of covering the guide slide rail 14.

[0037] In the embodiment, the impact plate 9 is fixedly installed with an upper auxiliary plate 901, the upper auxiliary plate 901 is fixedly installed with an upper sliding block 902, the baffle 10 is fixedly installed with a lower auxiliary plate 1001, the lower auxiliary plate 1001 is fixedly installed with an upper sliding rail 1002 in sliding cooperation with the upper sliding block 902, and the power input end 8 is located between the upper sliding rail 1002 and the guide sliding rail 14. Specifically, the upper auxiliary plate 901 is fixedly installed at the top of the impact plate 9, the number of the upper sliding block 902 is one or more, the upper sliding block 902 is fixedly installed below the upper auxiliary plate 901, the number of the upper sliding rail 1002 is the same as that of the upper sliding block 902 and is in one-to-one corresponding sliding insertion, and by locating the power input end 8 between the upper sliding rail 1002 and the guide sliding rail 14, when the push-pull rod 11 impacts and pulls the linkage, the upper and lower ends of the linkage are more balanced in stress, so that the stability of the linkage when sliding is improved.

[0038] In the embodiment, the base 1 is fixedly installed with end plates 22 at both ends, both ends of the rotating shaft 201 are rotationally connected with the two end plates 22 in one-to-one correspondence, the end plate 22 close to the buffer mechanism is provided with avoiding holes 2201 corresponding to the two longitudinal sliding plates 5, and the longitudinal sliding plate 5 penetrates through the corresponding avoiding hole 2201.

[0039] When the push-pull rod 11 is staggered with the pull plate 801, the impact plate 9 abuts against or approaches the end plate 22, so that the end plate 22 limits the impact plate 9, and then the position of the second roller assembly 502 corresponds to the plane 6031.

[0040] It should be noted that the electric equipment involved in the present application can be powered by a battery or an external power source, and the present application is provided with a control system for controlling the operation of the entire device.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “installation”, “provided with”, “connection” and the like should be understood in a broad sense, for example, “connection” can be fixed connection, can be detachable connection, or integrally connected; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stacker walking mechanism, comprising a fixedly connected base (1) and a guide rail (14), a platform (17) being reciprocally slidably arranged on the guide rail (14), and a buffer mechanism being arranged on the base (1), characterized in that: the buffer mechanism comprises a shielding cover (2) rotatably connected to the base (1), a protection plate (3) elastically slidably arranged on the base (1), and a linkage member slidably connected to the base (1) and linked with the shielding cover (2); when the platform (17) is close to an initial position, a push-pull rod (11) fixedly installed on the platform (17) strikes the linkage member to slide outward of the base (1) to drive the linkage member to rotate the shielding cover (2) to make the shielding cover (2) extrude the protection plate (3) to elastically slide while covering the guide rail (14); when the platform (17) is away from the initial position, the push-pull rod (11) pulls the linkage member to slide inward of the base (1) to make the shielding cover (2) rotate to open. A plurality of support rods (7) are elastically inserted into the base (1), and the shielding cover (2) abuts against the top of the plurality of support rods (7) after being rotated to open.

2. The stacker travel mechanism of claim 1, wherein: A plurality of first roller assemblies (16) are installed on the platform (17), and the first roller assemblies (16) extrude the top of the shielding cover (2) after being opened in the moving process of the platform (17) to make the shielding cover (2) after being opened share the downward pressure borne by the guide rail (14).

3. The stacker travel mechanism of claim 2, wherein: The protection plate (3) is arc-shaped, the outer convex arc surface of the protection plate (3) faces away from the corresponding guide rail (14), and the heights of the shielding cover (2) and the protection plate (3) are both greater than that of the guide rail (14) when the shielding cover (2) is opened, and the guide rail (14) is located between the shielding cover (2) and the protection plate (3) to protect the left and right sides of the guide rail (14).

4. The stacker travel mechanism of claim 1, wherein: The linkage member comprises a striking plate (9), a power input end (8), and a power output end, the power input end (8) is rotatably connected with the striking plate (9), and the power output end is fixedly connected with the striking plate (9), a baffle (10) is fixedly installed on the base (1) to limit the striking plate (9), the striking plate (9) is located between the baffle (10) and the base (1), and the power input end (8) is in push-pull cooperation with the push-pull rod (11).

5. The stacker travel mechanism of claim 1, wherein: The power input end (8) comprises a pull plate (801), a push plate (802), and a limb plate (803) fixedly connected and arranged in a circumferential direction, the free end of the push plate (802) extends to the outside of the free end of the pull plate (801), and the connection portions of the pull plate (801), the push plate (802), and the limb plate (803) are rotatably connected with a plug-in seat (903) fixedly installed on the striking plate (9) through a pin shaft (804).

6. The stacker travel mechanism of claim 5, wherein: A rotating roller (805) in abutting cooperation with the baffle (10) is rotatably installed at the free end of the limb plate (803).

7. The stacker travel mechanism of claim 6, wherein: ​ 8. The stacker travel mechanism of claim 5, wherein: The power output end of the linkage comprises a longitudinal sliding plate (5) in sliding connection with the base (1), the longitudinal sliding plate (5) is connected with an impact plate (9), a transverse sliding plate (6) is arranged on the base (1) in sliding mode, the longitudinal sliding plate (5) is linked with the shielding cover (2) through the transverse sliding plate (6), when the push-pull rod (11) impacts the power input end (8), the impact plate (9) is pulled to slide the longitudinal sliding plate (5), the longitudinal sliding plate (5) pushes the transverse sliding plate (6) to slide so that the transverse sliding plate (6) drives the shielding cover (2) to rotate.

9. The stacker travel mechanism of claim 8, wherein: A plurality of gear wheels (202) are fixedly installed on the rotating shaft (201) of the shielding cover (2), a plurality of gear racks (602) are fixedly installed on the transverse sliding plate (6) and are in one-to-one correspondence with the plurality of gear wheels (202).

10. The stacker travel mechanism of claim 5, wherein: The impact plate (9) is fixedly installed with an upper auxiliary plate (901), the upper auxiliary plate (901) is fixedly installed with an upper sliding block (902), the baffle (10) is fixedly installed with a lower auxiliary plate (1001), the lower auxiliary plate (1001) is fixedly installed with an upper sliding rail (1002) in sliding cooperation with the upper sliding block (902), and the power input end (8) is located between the upper sliding rail (1002) and the guide sliding rail (14).

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