A four-way shuttle vehicle for logistics warehousing

Abstract

The present invention relates to the field of logistics warehousing and handling equipment, and discloses a four-way shuttle for logistics warehousing, including a shuttle body, a gear lifting mechanism and a lifting plate mechanism, the shuttle body includes a lifting motor assembly, the gear lifting mechanism includes a gear assembly and a lifting shaft, the gear assembly includes a power gear and a lifting gear, the lifting motor assembly drives the power gear to rotate and then drives the lifting gear to rotate, the lifting shaft is clamped at the rim position of the lifting gear and the axis of the lifting shaft is parallel to the axis of the lifting gear; the lifting plate mechanism includes a lifting side plate with a horizontal limit groove, the axis direction of the lifting shaft is perpendicular to the plane where the lifting side plate is located, the lifting shaft abuts against the limit groove and the lifting shaft reciprocates along the length direction of the limit groove. The present invention realizes the lifting of goods by driving the gear system with a motor, solves the problem of complex lifting structure and high manufacturing cost, and has the advantages of simple structure and low cost.

Description

Technical Field

[0001] The invention relates to the technical field of logistics warehousing and handling equipment, and in particular to a four-way shuttle vehicle for logistics warehousing. Background Art

[0002] With the rise of my country's manufacturing industry, the logistics industry has also developed rapidly, and warehousing has received more and more attention from manufacturers and society. Warehousing is an important part of modern logistics and plays a vital role in the logistics system. Efficient and reasonable warehousing can help manufacturers speed up the flow of materials, reduce costs, ensure the smooth progress of production, and achieve effective control and management of resources.

[0003] Warehousing is an important part of production activities and develops with the development of production. The development of warehousing has gone through different historical periods and stages, from the original manual warehousing to the current intelligent warehousing. Through the support of various high-tech technologies, the efficiency of warehousing has been greatly improved. Automated transport carts are often needed in intelligent logistics warehousing.

[0004] For example, the Chinese patent "An Intelligent Warehouse Transporter" with the authorization announcement number CN107128634B discloses an intelligent warehouse transporter, including a transporter body and a navigation control system; the transporter body is provided with a loading and unloading device and a road wheel device for steering and moving the transporter body; the transporter body includes a transporter bottom frame; the loading and unloading device includes a loading rack; the loading rack is provided on the transporter bottom frame, and two-way movable forks are respectively provided on the opposite sides of the loading rack, and the two-way movable forks are movably connected to the loading rack. This invention enables the goods to be transported to the loading rack of the intelligent logistics robot through the mechanical arm of the intelligent logistics robot, that is, the two-way movable fork, and after arriving at the target area, the goods are transported from the loading rack of the intelligent logistics robot to the target rack through the mechanical arm, thereby realizing accurate and efficient loading and unloading of goods.

[0005] The above-mentioned intelligent storage truck uses a mechanical arm to lift the goods, which is relatively expensive. Other cargo lifting methods include hydraulic lifting and cam lifting. However, the maintenance costs of storage trucks made according to these two solutions are still very high during use, and the manufacturing cost is relatively high, so there is room for improvement. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a four-way shuttle for logistics warehousing, which lifts the goods by the shuttle through a motor-driven gear system, avoiding the use of hydraulic systems or mechanical arms and other devices with complex structures and high manufacturing costs. It has the advantages of simple structure, reliable operation, low maintenance cost, etc., and is convenient for large-scale promotion and application.

[0007] To achieve the above object, the technical solution of the present invention is:

[0008] A four-way shuttle car for logistics warehousing, comprising a shuttle car body, the shuttle car body comprising a lifting motor assembly and a lifting power main shaft, the lifting motor assembly drives the lifting power main shaft to rotate, and also comprises a gear lifting mechanism and a lifting plate mechanism; the gear lifting mechanism comprises a transmission case, a gear assembly and a lifting shaft, the transmission case is fixed to the shuttle car body, the gear assembly is arranged inside the transmission case, the gear assembly comprises a power gear and a lifting gear, the lifting power main shaft drives the power gear to rotate, the power gear drives the lifting gear to rotate, the lifting shaft is clamped at the rim position of the lifting gear and the axis of the lifting shaft is parallel to the axis of the lifting gear; the lifting plate mechanism comprises a lifting side plate, a limiting groove is provided on the lifting side plate, the length direction of the limiting groove is horizontal, the axis direction of the lifting shaft is perpendicular to the plane where the lifting side plate is located, the lifting shaft abuts against the limiting groove and the lifting shaft slides back and forth along the length direction of the limiting groove.

[0009] By adopting the above technical solution, when the shuttle car body is working in the warehouse, when it is necessary to lift or put down the goods, the lifting motor assembly is powered on to realize forward or reverse rotation, the lifting motor assembly drives the lifting power main shaft to rotate, the lifting power main shaft drives the power gear in the gear lifting mechanism to rotate, and the power gear drives the lifting gear to rotate. Since the lifting shaft is clamped at the rim position of the lifting gear, the rotation of the lifting gear will drive the lifting shaft to make an approximate circular motion around the center of the lifting gear. Since the lifting side plate is provided with a horizontally arranged limit groove and the lifting shaft is located in the limit groove, when the lifting gear drives the lifting shaft to make an approximate circular motion around the center of the lifting gear, the displacement of the lifting shaft in the horizontal direction is converted into a relative sliding of the lifting shaft in the limit groove, and the displacement of the lifting shaft in the vertical direction is converted into a displacement of the lifting side plate in the vertical direction, so that the lifting and putting down of the goods is realized in this way. The present invention realizes the lifting of goods by the shuttle car by driving the gear assembly through the lifting motor assembly. The power transmission is smooth and reliable, and the gear assembly has the advantages of simple structure, reliable operation and low maintenance cost. It avoids the use of devices with complex structure and high manufacturing cost such as hydraulic system or mechanical arm, and effectively reduces the use and manufacturing cost of the shuttle car.

[0010] The present invention is further configured as follows: the gear assembly also includes a transmission gear, the lifting gear includes a first lifting gear and a second lifting gear, the power gear is meshed with the first lifting gear and the transmission gear at the same time, the transmission gear is meshed with the power gear and the second lifting gear at the same time, the transmission gear has the same pitch circle diameter, module and number of teeth as the first lifting gear and the second lifting gear, and a lifting shaft is each clamped on the first lifting gear and the second lifting gear.

[0011] By adopting the above technical solution, when the power gear rotates, it will drive the first lifting gear and the transmission gear to rotate synchronously. Since the transmission gear is meshed with the power gear and the second lifting gear at the same time, the power gear will drive the second lifting gear to rotate through the transmission gear while driving the first lifting gear to rotate. Since the pitch circle diameter, module, and number of teeth of the transmission gear are the same as those of the first lifting gear and the second lifting gear, the rotation of the power gear will cause the first lifting gear and the second lifting gear to rotate synchronously. As a result, the lifting shafts on the first lifting gear and the second lifting gear can achieve synchronous displacement in the vertical direction, and then each lifting shaft bears a smaller load when driving the lifting side plate to move, thereby improving the rigidity and durability of the equipment, and at the same time increasing the allowable cargo weight of the shuttle within a certain range.

[0012] The present invention is further configured as follows: the positions of the two lifting shafts on the first lifting gear and the second lifting gear are symmetrically arranged with respect to the center line of the shuttle body in the length direction of the lifting shaft.

[0013] By adopting the above technical solution, when the shuttle car lifts goods, the weight of the goods is evenly distributed on the two lifting shafts, avoiding the premature failure of a specific lifting shaft due to bearing more load, resulting in inconsistent service life of the two lifting shafts, thereby simplifying maintenance operations and saving maintenance costs.

[0014] The present invention is further configured as follows: a set of gear lifting mechanisms and a lifting plate mechanism are respectively provided at both ends of the lifting power main shaft of the shuttle body, and the lifting power main shaft drives the two sets of gear lifting mechanisms to act synchronously.

[0015] By adopting the above technical solution, two sets of gear lifting mechanisms and lifting plate mechanisms are provided on the shuttle body to achieve synchronous lifting of the goods, so that each set of gear lifting mechanisms and lifting plate mechanisms bears a smaller load when lifting the goods, thereby further improving the rigidity and durability of the equipment, while increasing the allowable cargo weight of the shuttle within a certain range.

[0016] The present invention is further configured as follows: the positions of the two groups of the gear lifting mechanisms and the lifting plate mechanisms are symmetrically arranged about the center line of the shuttle body in a direction perpendicular to the length of the lifting power main shaft.

[0017] By adopting the above technical solution, when the shuttle car lifts goods, the weight of the goods is evenly distributed on the two sets of gear lifting mechanisms and lifting plate mechanisms, avoiding premature failure of a specific set of gear lifting mechanisms and lifting plate mechanisms due to bearing more loads, resulting in inconsistent service life of the two sets of gear lifting mechanisms and lifting plate mechanisms, thereby further simplifying maintenance operations and saving maintenance costs.

[0018] The present invention is further configured as follows: the lifting plate mechanism also includes a lifting fixing plate, two of the lifting fixing plates are parallely fixed to the two ends of two parallel lifting side plates, and the two ends of the lifting shaft slide in the limiting grooves on the two lifting side plates respectively.

[0019] By adopting the above technical solution, since the two ends of the lifting shaft are respectively abutted against the limit grooves on the two lifting side plates, the lifting shaft will drive the frame structure composed of two lifting fixing plates and two lifting side plates fixedly connected to produce displacement in the vertical direction. Both ends of the lifting shaft bear the load at the same time, which is conducive to improving the structural rigidity of the equipment and extending the service life of the equipment.

[0020] The present invention is further configured as follows: the lifting plate mechanism also includes a lifting rib plate, the lifting rib plate is parallel to the lifting fixed plate and is fixedly connected to the two lifting side plates at the same time, and the upper surface of the lifting rib plate and the upper surface of the lifting side plate are at the same horizontal height.

[0021] By adopting the above technical solution, the setting of the lifting rib plate further improves the structural strength of the frame structure composed of two lifting fixed plates and two lifting side plates fixedly connected, and at the same time, the upper surface of the lifting rib plate and the upper surface of the lifting side plate are located at the same horizontal height, so that when the lifting side plate contacts the cargo, the lifting rib plate will also contact the cargo at the same time, thereby increasing the contact area between the lifting plate mechanism and the cargo, and making the weight of the cargo more evenly distributed on the lifting plate mechanism.

[0022] The present invention is further configured as follows: it also includes a limiting guide rail, which is vertically fixed on the shuttle body, and the lifting plate mechanism also includes a sliding shaft, one end of which is fixedly connected to the lifting fixed plate and the other end of the sliding shaft is located inside the limiting guide rail and reciprocates in the vertical direction along the limiting guide rail.

[0023] By adopting the above technical solution, when the lifting shaft drives the frame structure composed of two lifting fixed plates and two lifting side plates fixedly connected to each other to move, since the sliding shaft fixedly connected to the lifting fixed plate is located inside the limiting guide rail and can only reciprocate in the vertical direction along the limiting guide rail, and the limiting guide rail is directly fixed on the shuttle body, it effectively avoids shaking and vibration when lifting and transporting goods, improves the stability of the shuttle when transporting goods, and reduces mechanical wear between components.

[0024] The present invention is further configured as follows: the lifting plate mechanism also includes a cone sleeve assembly, the cone sleeve assembly includes a cone sleeve support plate and a lifting cone sleeve, the cone sleeve support plate is horizontally fixed to the upper surfaces of the two lifting side plates, and the lifting cone sleeve is fixed to the upper surface of the cone sleeve support plate.

[0025] By adopting the above technical solution, the cone sleeve support plate is fixed on the two lifting side plates, and the lifting cone sleeve is fixed on the cone sleeve support plate, which further increases the contact area between the lifting plate mechanism and the cargo. At the same time, the setting of the cone sleeve effectively reduces the possibility of the cargo sliding and falling on the shuttle car during lifting and transportation, thereby improving the safety and reliability of transportation.

[0026] The present invention is further configured as follows: the gear lifting mechanism also includes a lifting bearing, the inner ring of the lifting bearing is sleeved on the lifting shaft, and the outer ring of the lifting bearing abuts against the limiting groove.

[0027] By adopting the above technical solution, when the lifting gear drives the lifting shaft to make approximately circular motion around the center of the lifting gear, the lifting shaft has both horizontal and vertical displacements relative to the horizontally arranged limit groove. The setting of the lifting bearing converts part of the sliding friction of the lifting shaft in the limit groove into rolling friction between the inner and outer rings of the lifting bearing, and converts the other part of the friction into sliding friction between the outer ring of the lifting bearing and the limit groove, thereby providing effective protection for the lifting shaft. At the same time, since the lifting bearing can be directly replaced during maintenance, the maintenance operation is simplified and the work efficiency is improved.

[0028] In summary, the beneficial effects achieved by the present invention are as follows:

[0029] (1) The present invention drives the gear assembly to rotate through the lifting motor assembly, thereby driving the lifting shaft to displace in the horizontal and vertical directions at the same time. The lifting shaft and the lifting side plate are matched to absorb and offset the displacement of the lifting shaft in the horizontal direction, while retaining the displacement of the lifting shaft in the vertical direction to achieve the lifting of the goods by the shuttle vehicle. The power transmission during the transmission process is stable and reliable, and the gear assembly has the advantages of simple structure, reliable operation, and low maintenance cost, which effectively reduces the use and manufacturing costs of the shuttle vehicle;

[0030] (2) When the shuttle lifts the cargo, the weight of the cargo is evenly distributed on two sets of gear lifting mechanisms and lifting plate mechanisms evenly arranged on the shuttle, thereby improving the rigidity and durability of the equipment and increasing the allowable cargo weight of the shuttle within a certain range;

[0031] (3) The sliding shaft fixedly connected to the lifting fixed plate is located inside the limit guide rail and can only reciprocate in the vertical direction along the limit guide rail. At the same time, the limit guide rail is directly fixed on the shuttle body, which effectively avoids shaking and vibration when lifting and transporting goods, improves the stability of the shuttle when transporting goods, and reduces the mechanical wear between the components, thereby increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Assembly drawing of a four-way shuttle for cold chain;

[0034] Figure 2 A top view of a four-way shuttle for cold chain;

[0035] Figure 3 It is a structural schematic diagram of the gear lifting mechanism; Figure 4 It is a structural schematic diagram of the lifting plate mechanism.

[0036] Reference numerals

[0037] 1. Shuttle body; 11. Lifting motor assembly; 12. Lifting reduction box assembly; 13. Lifting power main shaft; 14. Main track wheel; 15. Sub-track wheel; 2. Limiting guide rail; 3. Gear lifting mechanism; 31. Transmission box; 311. Transmission box support plate; 32. Gear assembly; 321. Power gear; 322. Transmission gear; 323. First lifting gear; 324. Second lifting gear; 33. Lifting shaft; 331. Engaging block; 34. Lifting bearing; 4. Lifting plate mechanism; 41. Lifting side plate; 411. Limiting groove; 42. Lifting fixed plate; 43. Lifting rib plate; 44. Weight reduction hole; 45. Sliding shaft; 46. Cone sleeve assembly; 461. Cone sleeve support plate; 462. Lifting cone sleeve. DETAILED DESCRIPTION

[0038] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1

[0040] As attached Figure 1-4 As shown, a four-way shuttle vehicle for logistics warehousing includes a shuttle vehicle body 1, a limiting guide rail 2 fixed on the shuttle vehicle body 1, and a gear lifting mechanism 3 and a lifting plate mechanism 4 installed on the shuttle vehicle body 1 for lifting goods.

[0041] The shuttle body 1 is a rectangular structure as a whole, including a lifting motor assembly 11, a lifting reduction box assembly 12 and a lifting power main shaft 13. The lifting motor assembly 11 is fixed on the shuttle body 1 and rotates forward or reverse under control. The power output by the lifting motor assembly 11 is reduced in speed and amplified in torque by the lifting reduction box assembly 12 to drive the lifting power main shaft 13 to rotate along its own axis.

[0042] The shuttle body 1 also includes main rail wheels 14 and sub-rail wheels 15. The main rail wheels 14 are installed on both sides of the shuttle body 1 in the length direction of the lifting power main shaft 13. There are four main rail wheels 14, two of which are installed on each side of the shuttle body 1. The main rail wheels 14 are driven to travel on the main rail of the warehouse.

[0043] The sub-rail wheels 15 are installed on both sides of the shuttle body 1 in a direction perpendicular to the length of the lifting power main shaft 13. There are eight main rail wheels 14, four of which are installed on each side of the shuttle body 1. The sub-rail wheels 15 are driven to travel on the sub-rails of the warehouse.

[0044] The gear lifting mechanism 3 includes a transmission housing 31 , a gear assembly 32 and a lifting shaft 33 .

[0045] The transmission box 31 is fixed on the shuttle body 1, and includes a transmission box support plate 311. The transmission box support plate 311 is a rectangular plate, horizontally fixed on the bottom plate of the shuttle body 1, and in this embodiment, the fixing method is bolt connection.

[0046] The transmission box 31 is hollow inside to accommodate the gear assembly 32 and provide support and protection for the gear assembly 32. The bottom of the transmission box 31 is welded and fixed to the upper surface of the transmission box support plate 311. The provision of the transmission box support plate 311 expands the contact area between the transmission box 31 and the shuttle body 1, effectively preventing the transmission box 31 from causing excessive local load on the shuttle body 1.

[0047] The gear assembly 32 is disposed inside the transmission housing 31. The gear assembly 32 includes a power gear 321, a transmission gear 322 and a lifting gear. In this embodiment, the number of lifting gears in each gear assembly 32 is two, which are respectively recorded as a first lifting gear 323 and a second lifting gear 324.

[0048] The lifting power main shaft 13 transmits power to the power gear 321 inside the transmission box 31 through the coupling and drives the power gear 321 to rotate. The power gear 321 is meshed with the first lifting gear 323 and the transmission gear 322 at the same time, so when the power gear 321 rotates, it will drive the first lifting gear 323 and the transmission gear 322 to rotate synchronously.

[0049] The transmission gear 322 is located between the power gear 321 and the second lifting gear 324 and meshes with the power gear 321 and the second lifting gear 324 at the same time. Therefore, when the power gear 321 drives the first lifting gear 323 to rotate, it will also drive the second lifting gear 324 to rotate through the transmission gear 322.

[0050] The transmission gear 322 has the same pitch circle diameter, module, and number of teeth as the first lifting gear 323 and the second lifting gear 324. The module of a gear indicates the size of the gear teeth, and the module is the ratio of the pitch circle pitch to the pi; the pitch circle diameter is the reference diameter of the gear, and the pitch circle diameter is equal to the product of the number of teeth and the module. Therefore, the rotation of the power gear 321 will enable the first lifting gear 323 and the second lifting gear 324 to achieve synchronous rotation, and the angular velocity and linear velocity of the first lifting gear 323 and the second lifting gear 324 are the same, so that the lifting shafts 33 on the first lifting gear 323 and the second lifting gear 324 achieve synchronous displacement in the vertical direction.

[0051] The lifting shaft 33 is columnar, and the first lifting gear 323 and the second lifting gear 324 are each clamped with a lifting shaft 33 and the lifting shaft 33 is clamped at the wheel rim position of the first lifting gear 323 and the second lifting gear 324. The axis of the lifting shaft 33 is parallel to the axis of the first lifting gear 323 or the second lifting gear 324.

[0052] The positions of the two lifting shafts 33 on the first lifting gear 323 and the second lifting gear 324 are symmetrically arranged with respect to the center line of the shuttle body 1 in the length direction of the lifting shaft 33, so that when the shuttle lifts goods, the weight of the goods is evenly distributed on the two lifting shafts 33, thereby avoiding premature failure of a specific lifting shaft 33 due to bearing more load, resulting in inconsistent service life of the two lifting shafts 33, thereby simplifying maintenance operations and saving maintenance costs.

[0053] In this embodiment, a rectangular parallelepiped meshing block 331 is provided on each lifting shaft 33, and the center line of the meshing block 331 in the length direction of the lifting shaft 33 is located on the axis of the lifting shaft 33. A rectangular groove matching the meshing block 331 is provided at the corresponding wheel rim positions of the first lifting gear 323 and the second lifting gear 324.

[0054] The first lifting gear 323 and the second lifting gear 324 are fixedly engaged with the meshing block 331 on the lifting shaft 33 through the rectangular grooves provided at the wheel rims, thereby effectively preventing the lifting shaft 33 engaged at the wheel rims of the first lifting gear 323 and the second lifting gear 324 from slipping.

[0055] The lifting plate mechanism 4 comprises a lifting side plate 41, a lifting fixing plate 42 and a lifting rib plate 43. The lifting plate mechanism 4 directly contacts the goods and cooperates with the lifting shaft 33 to lift the goods.

[0056] The lifting side plate 41 is a rectangular plate, and its length direction is perpendicular to the length direction of the lifting shaft 33. The width of the lifting side plate 41 does not exceed the height of the shuttle body 1. The lifting fixing plate 42 and the lifting rib plate 43 are both rectangular plates, and their lengths are the same as the height of the lifting side plate 41.

[0057] The same set of lifting plate mechanisms 4 includes two lifting side plates 41 arranged in parallel with each other, two lifting fixed plates 42 arranged in parallel with each other, and two lifting rib plates 43 arranged in parallel with each other. The two lifting fixed plates 42 are fixed in parallel to the two ends of the two lifting side plates 41, so that the two lifting fixed plates 42 and the two lifting side plates 41 are fixedly connected to form a rectangular frame structure. At the same time, the two lifting rib plates 43 are parallel to the lifting fixed plates 42 and are fixedly connected to the two lifting side plates 41 at the same time. The two lifting rib plates 43 are evenly arranged along the length direction of the lifting side plates 41, which effectively improves the structural strength of the frame structure composed of the two lifting fixed plates 42 and the two lifting side plates 41.

[0058] The axial direction of the lifting shaft 33 is perpendicular to the plane where the lifting side plate 41 is located. Two limit slots 411 at the same height are provided on each lifting side plate 41. The length direction of the limit slot 411 is horizontal, and the lifting shaft 33 abuts against the limit slot 411 and the lifting shaft 33 reciprocates along the length direction of the limit slot 411. And because the two lifting side plates 41 are arranged in parallel, the two ends of the lifting shaft 33 reciprocate in the limit slots 411 on the two lifting side plates 41.

[0059] When the lifting shaft 33 drives the lifting side plate 41 to move, since the lifting shaft 33 on the first lifting gear 323 and the second lifting gear 324 simultaneously supports the lifting side plate 41, the load borne by any one lifting shaft 33 is smaller, thereby improving the rigidity and durability of the equipment, and at the same time increasing the allowable cargo weight of the shuttle within a certain range.

[0060] Since both ends of the lifting shaft 33 are respectively abutted against the limiting grooves 411 on the two lifting side plates 41, the lifting shaft 33 will drive the frame structure consisting of the two lifting fixing plates 42 and the two lifting side plates 41 to move in the vertical direction. Both ends of the lifting shaft 33 bear the load at the same time, which is beneficial to improving the structural rigidity of the equipment and extending the service life of the equipment.

[0061] The lifting plate mechanism 4 further includes a lightening hole 44 , a sliding shaft 45 and a cone sleeve assembly 46 .

[0062] The weight-reducing holes 44 are circular through holes, which are evenly distributed on the lifting side plates 41, the lifting fixing plates 42 and the lifting rib plates 43, and are helpful to reduce the overall weight of the shuttle while ensuring the structural strength of the shuttle.

[0063] The upper surface of the lifting rib 43 is at the same horizontal height as the upper surface of the lifting side plate 41, so that when the lifting side plate 41 contacts the cargo, the lifting rib 43 will also contact the cargo at the same time, thereby increasing the contact area between the lifting plate mechanism 4 and the cargo, making the weight of the cargo more evenly distributed on the lifting plate mechanism 4.

[0064] The cone sleeve assembly 46 includes a cone sleeve support plate 461 and a lifting cone sleeve 462. The cone sleeve support plate 461 is a rectangular plate. The two cone sleeve support plates 461 are horizontally fixed to the upper surfaces of the two lifting side plates 41 and are located at both ends of the lifting side plates 41 in the length direction.

[0065] The lifting cone sleeve 462 is a truncated cone-shaped protrusion, which is horizontally fixed to the upper surface of the cone sleeve support plate 461, further increasing the contact area between the lifting plate mechanism 4 and the goods. At the same time, the setting of the cone sleeve effectively reduces the possibility of the goods sliding and falling on the shuttle vehicle during lifting and transportation, thereby improving the safety and reliability of transportation.

[0066] In this embodiment, the limiting guide rail 2 is vertically fixed on the shuttle body 1 .

[0067] The sliding shaft 45 is columnar and horizontally arranged, one end of which is fixedly connected to the lifting fixed plate 42 and the other end of the sliding shaft 45 is located inside the limiting guide rail 2 and reciprocates in the vertical direction along the limiting guide rail 2. Two sliding shafts 45 are fixedly connected to each lifting fixed plate 42, thereby effectively avoiding the shaking and vibration phenomenon when lifting and transporting goods, improving the stability of the shuttle when transporting goods, and reducing the mechanical wear between the components.

[0068] The gear lifting mechanism 3 in this embodiment further includes a lifting bearing 34. Each lifting shaft 33 is provided with a lifting bearing 34 at both ends. The lifting bearing 34 is preferably a deep groove ball bearing. The inner ring of the lifting bearing 34 is sleeved on the lifting shaft 33, and the outer ring of the lifting bearing 34 abuts against the limiting groove 411.

[0069] When the lifting gear drives the lifting shaft 33 to make approximately circular motion around the center of the lifting gear, the lifting shaft 33 has both horizontal and vertical displacements relative to the horizontally arranged limit groove 411. The lifting bearing 34 converts a part of the sliding friction of the lifting shaft 33 in the limit groove 411 into rolling friction between the inner and outer rings of the lifting bearing 34, and converts another part of the friction into sliding friction between the outer ring of the lifting bearing 34 and the limit groove 411, thereby providing effective protection for the lifting shaft 33. At the same time, the lifting bearing 34 can be directly replaced during maintenance.

[0070] The shuttle body 1 in this embodiment is provided with a set of gear lifting mechanisms 3 and lifting plate mechanisms 4 at both ends of the lifting power main shaft 13, and the positions of the two sets of gear lifting mechanisms 3 and lifting plate mechanisms 4 are symmetrically arranged about the center line of the shuttle body 1 in the direction perpendicular to the length of the lifting power main shaft 13. The lifting power main shaft 13 drives the two sets of gear lifting mechanisms 3 to act synchronously, and the two sets of gear lifting mechanisms 3 and lifting plate mechanisms 4 can lift the goods synchronously, so that each set of gear lifting mechanisms 3 and lifting plate mechanisms 4 bears a smaller load when lifting the goods. At the same time, because the weight of the goods is evenly distributed on the two sets of gear lifting mechanisms 3 and lifting plate mechanisms 4, it is avoided that a specific set of gear lifting mechanisms 3 and lifting plate mechanisms 4 fails prematurely due to bearing more load.

[0071] The implementation principle of the above embodiment is:

[0072] During the operation of the cold chain four-way shuttle in the warehouse, when the goods need to be lifted or put down, the lifting motor assembly 11 is powered on to realize forward or reverse rotation, and the power output by the lifting motor assembly 11 is reduced in speed and amplified in torque through the lifting reduction box assembly 12 to drive the lifting power main shaft 13 to rotate along its own axis, and the lifting power main shaft 13 drives the power gear 321 in the gear lifting mechanism 3 to rotate, and the power gear 321 drives the first lifting gear 323 and the second lifting gear 324 to rotate synchronously;

[0073] Since the lifting shaft 33 is engaged with the rim of the lifting gear through the meshing block 331, the rotation of the lifting gear drives the lifting shaft 33 to approximately perform circular motion around the center of the lifting gear. Since the lifting side plate 41 is provided with a horizontally arranged limit groove 411 and the lifting shaft 33 is located in the limit groove 411, when the first lifting gear 323 and the second lifting gear 324 drive the lifting shaft 33 to approximately perform circular motion around the center of the first lifting gear 323 and the second lifting gear 324, the horizontal displacement of the lifting shaft 33 is converted into the relative sliding of the lifting shaft 33 in the limit groove 411, and the vertical displacement of the lifting shaft 33 is converted into the vertical displacement of the lifting side plate 41, thereby realizing the lifting and lowering of the goods.

[0074] Although preferred embodiments of the present invention have been described, additional changes and modifications may be made to these embodiments by those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A four-way shuttle vehicle for logistics warehousing, comprising a shuttle vehicle body, wherein the shuttle vehicle body comprises a lifting motor assembly and a lifting power main shaft, wherein the lifting motor assembly drives the lifting power main shaft to rotate, and wherein: Also included are a gear lifting mechanism and a lifting plate mechanism; The gear lifting mechanism includes a transmission box, a gear assembly and a lifting shaft, the transmission box is fixed to the shuttle body, the gear assembly is arranged inside the transmission box, the gear assembly includes a power gear and a lifting gear, the lifting power main shaft drives the power gear to rotate, the power gear drives the lifting gear to rotate, the lifting shaft is clamped at the rim position of the lifting gear and the axis of the lifting shaft is parallel to the axis of the lifting gear; The lifting plate mechanism comprises a lifting side plate, a limiting groove is provided on the lifting side plate, the length direction of the limiting groove is horizontal, the axis direction of the lifting shaft is perpendicular to the plane where the lifting side plate is located, the lifting shaft abuts against the limiting groove and the lifting shaft reciprocates along the length direction of the limiting groove; The gear assembly also includes a transmission gear, and the lifting gear includes a first lifting gear and a second lifting gear. The power gear is meshed with the first lifting gear and the transmission gear at the same time, and the transmission gear is meshed with the power gear and the second lifting gear at the same time. The transmission gear has the same pitch circle diameter, module, and number of teeth as the first lifting gear and the second lifting gear, and a lifting shaft is each clamped on the first lifting gear and the second lifting gear.

2. A four-way shuttle vehicle for logistics warehousing according to claim 1, characterized in that: The positions of the two lifting shafts on the first lifting gear and the second lifting gear are symmetrically arranged with respect to the center line of the shuttle body in the length direction of the lifting shaft.

3. A four-way shuttle vehicle for logistics warehousing according to claim 1, characterized in that: The shuttle body is provided with a set of gear lifting mechanisms and a lifting plate mechanism at both ends of the lifting power main shaft, and the lifting power main shaft drives the two sets of gear lifting mechanisms to act synchronously.

4. A four-way shuttle vehicle for logistics warehousing according to claim 3, characterized in that: The positions of the two groups of gear lifting mechanisms and lifting plate mechanisms are symmetrically arranged about the center line of the shuttle body in a direction perpendicular to the length of the lifting power main shaft.

5. A four-way shuttle vehicle for logistics warehousing according to claim 1, characterized in that: The lifting plate mechanism also includes a lifting fixing plate. The two lifting fixing plates are fixed in parallel to the two ends of the two lifting side plates arranged in parallel. The two ends of the lifting shaft slide in the limiting grooves on the two lifting side plates respectively.

6. A four-way shuttle vehicle for logistics warehousing according to claim 5, characterized in that: The lifting plate mechanism also includes a lifting rib plate, which is parallel to the lifting fixed plate and fixedly connected to the two lifting side plates at the same time. The upper surface of the lifting rib plate and the upper surface of the lifting side plate are located at the same horizontal height.

7. A four-way shuttle vehicle for logistics warehousing according to claim 5, characterized in that: It also includes a limiting guide rail, which is vertically fixed on the shuttle body. The lifting plate mechanism also includes a sliding shaft, one end of which is fixedly connected to the lifting fixed plate and the other end of the sliding shaft is located inside the limiting guide rail and reciprocates in the vertical direction along the limiting guide rail.

8. A four-way shuttle vehicle for logistics warehousing according to claim 5, characterized in that: The lifting plate mechanism also includes a cone sleeve assembly, which includes a cone sleeve support plate and a lifting cone sleeve. The cone sleeve support plate is horizontally fixed to the upper surfaces of the two lifting side plates, and the lifting cone sleeve is fixed to the upper surface of the cone sleeve support plate.

9. A four-way shuttle vehicle for logistics warehousing according to claim 1, characterized in that: The gear lifting mechanism further comprises a lifting bearing, the inner ring of the lifting bearing is sleeved on the lifting shaft, and the outer ring of the lifting bearing abuts against the limiting groove.

Images