Driving wheel for three-dimensional garage four-way vehicle

Abstract

The driving wheel comprises a wheel body, the wheel body is connected with a clutch flange shaft fixed to a power shaft through a clutch pin, the clutch pin is movably connected with the clutch flange shaft, and connection between the wheel body and the power shaft can be controlled to be disconnected through the clutch pin. The wheel body disconnected from the power shaft can freely rotate relative to the power shaft. The four-way vehicle has the advantages that the wheel body is connected with the power shaft by matching the clutch pin in the clutch mechanism with the clutch flange shaft fixed on the power shaft, the power shaft drives the wheel body to rotate during use, normal power output and operation of the four-way vehicle are guaranteed, when the four-way vehicle breaks down, the clutch pin is rotated, the clutch pin can retreat from the clutch flange shaft, and the service life of the four-way vehicle is prolonged. The connection between the wheel body and the power shaft is disconnected, the wheel body is converted into a free wheel which is not restrained by the power shaft and freely rotates, the four-way vehicle is conveniently dragged to move out, and the problems that after an existing four-way vehicle breaks down in a three-dimensional garage, wheels cannot rotate, and the four-way vehicle is difficult to move out are solved.

Description

Technical Field

[0001] The invention specifically relates to a driving wheel for a four-way vehicle in a stereoscopic garage. Background Art

[0002] With the continuous development of the warehousing industry, higher and higher requirements are placed on the utilization rate of material flow storage warehouse space, which makes it the direction of development to arrange more shelves in the plane of the storage warehouse, arrange more shelf compartments in the height direction, and minimize the space occupied by the loading and unloading channels.

[0003] At present, the three-dimensional warehouse structure mode with one loading and unloading lane between two rows of shelves is gradually developing into a mode with a main lane of slightly larger size for loading and unloading and multiple sub-lanes of slightly smaller size vertically connected to it for storing shelves. This structural mode greatly reduces the space occupied by the loading and unloading lanes.

[0004] In order to improve the utilization rate of the material flow storage warehouse space, the shelves are generally multi-layered and three-dimensional. At the same time, in order to improve the efficiency of loading and unloading, there are multiple four-way carts in the three-dimensional warehouse, and the multiple layers are densely running. Once a four-way cart breaks down and cannot move, especially when loaded with goods, it is a very difficult task to move the four-way cart out of the warehouse. At present, the work of moving the four-way cart out mainly relies on using a wire rope to forcibly drag the four-way cart together with the goods it carries, or to lift the four-way cart up, place another small car under it, and move the four-way cart out as a whole.

[0005] For the first removal method, since the wheels are covered with polyurethane rubber and the active wheels cannot rotate when the four-way vehicle fails, the vehicle has a large drag resistance, which may cause damage to the active wheels and even the power system of the four-way vehicle.

[0006] For the second removal method, manual labor is required to lift up the four-way vehicle together with the cargo, and lifting up the four-way vehicle and its cargo is relatively complicated, and the operation process is time-consuming, which affects the normal loading and unloading of the stereoscopic warehouse. Summary of the invention

[0007] The technical problem to be solved by the present invention is that after the existing four-way vehicle mentioned in the background technology breaks down in the stereoscopic warehouse, the driving wheels cannot rotate and the four-way vehicle is difficult to move out.

[0008] In view of the above technical problems, a driving wheel for a four-way vehicle in a stereoscopic warehouse is proposed; when the four-way vehicle fails, the driving wheel can release the connection between the driving wheel and the power shaft, and convert the driving wheel into a "free wheel" that is not constrained by the power shaft and can rotate freely, so as to facilitate the removal of the failed four-way vehicle; it is specifically achieved through the following technical scheme: a driving wheel for a four-way vehicle in a stereoscopic warehouse, comprising a sub-alley driving wheel and a main-alley driving wheel, wherein the sub-alley driving wheel and the main-alley driving wheel are connected to the power shaft on the four-way vehicle to transmit power, and is characterized in that: the sub-alley driving wheel and the main-alley driving wheel both include a wheel body, the wheel body is arranged on the power shaft through a clutch flange shaft, the clutch flange shaft can controllably disconnect the wheel body from the power shaft, and the wheel body disconnected from the power shaft can rotate freely relative to the power shaft.

[0009] Preferably, the sub-lane driving wheel and the main lane driving wheel also include a clutch mechanism and a connecting mechanism. The clutch mechanism is fixed on the power shaft through the connecting mechanism, and the wheel body is connected to the clutch mechanism. The wheel body is connected to the power shaft under the action of the clutch mechanism to achieve linkage, and the clutch flange shaft in the clutch mechanism can controllably disconnect the connection between the wheel body and the power shaft. The clutch mechanism and the connecting mechanism are arranged to connect the wheel body and the power shaft, which facilitates the power shaft to drive the wheel body to rotate, thereby ensuring normal power output and operation of the four-way vehicle.

[0010] Preferably, the connecting mechanism comprises a flange limit sleeve, which is connected to the power shaft through a fixed key; the clutch mechanism comprises a clutch pin and a fixed pin screw, one end of the clutch pin is screwed on the clutch flange shaft, and the other end is movably inserted in the wheel body, and rotating the clutch pin can release the cooperation between the clutch pin and the clutch flange shaft, and the fixed pin screw is arranged on the wheel body, and the clutch pin that releases the cooperation with the clutch flange shaft is screwed on the fixed pin screw. The arrangement of the clutch pin facilitates the control of the connection between the clutch flange shaft and the wheel body, which ensures the normal power output and operation of the four-way vehicle, and at the same time, when the four-way vehicle fails, the wheel body can be converted into a freely movable "free wheel" to facilitate the removal of the failed vehicle.

[0011] Preferably, a guide hole is provided inside the clutch pin, the guide hole is coaxial with the fixed pin screw, and a section of the fixed pin screw is inserted into the guide hole, and a reset spring is sleeved on the outside of the fixed pin screw, one end of the reset spring is against the bottom surface of the guide hole and contacts the clutch pin. The reset spring is arranged so that after the clutch pin is separated from the fixed pin screw, the thread at the end of the clutch pin can be close to the thread in the mounting hole of the clutch flange shaft, thereby facilitating the installation and reset of the clutch pin.

[0012] Preferably, the clutch flange shaft comprises a clutch pin mounting hole and a second fixed keyway, a clutch pin with one end inserted in the wheel body is movably arranged in the clutch pin mounting hole, the second fixed keyway is arranged on the inner wall of the clutch flange shaft, the clutch flange shaft is connected with the flange limit sleeve and the power shaft through the second fixed keyway, and the second fixed keyway penetrates the clutch flange shaft axially along the clutch flange shaft, the clutch flange shaft can connect the four-way vehicle and the power shaft during normal operation of the four-way vehicle, thereby ensuring normal power output and operation of the four-way vehicle, and when the four-way vehicle fails, the coordination with the wheel body can be released, so that the wheel body is converted into a "free wheel" that can rotate freely without being constrained by the power shaft, thereby facilitating the removal of the four-way vehicle.

[0013] Preferably, a sliding sleeve is provided between the clutch flange shaft and the wheel body, and the wheel body disconnected from the power shaft rotates freely along the sliding sleeve. Such an arrangement prevents the wheel body from wearing the clutch flange shaft when it rotates freely.

[0014] The present invention also discloses a driving wheel for a four-way vehicle in a stereoscopic warehouse, comprising a driving wheel, wherein the driving wheel comprises a wheel body, a clutch mechanism and a connecting mechanism, wherein the clutch mechanism is fixed to a power shaft via the connecting mechanism, the wheel body is connected to the clutch mechanism, and the wheel body is connected to the power shaft under the action of the clutch mechanism, and the clutch mechanism can controllably disconnect the wheel body from the power shaft, and the wheel body disconnected from the power shaft can rotate freely relative to the power shaft.

[0015] Preferably, the connecting mechanism comprises a flange limit sleeve, which is connected to the power shaft through a fixed key; the clutch mechanism comprises a clutch pin and a fixed pin screw, one end of the clutch pin is screwed on the clutch flange shaft, and the other end is movably inserted in the wheel body, and rotating the clutch pin can release the cooperation between the clutch pin and the clutch flange shaft, and the fixed pin screw is arranged on the wheel body, and the clutch pin that releases the cooperation with the clutch flange shaft is screwed on the fixed pin screw. The arrangement of the clutch pin facilitates the control of the connection between the clutch flange shaft and the wheel body, which ensures the normal power output and operation of the four-way vehicle, and at the same time, when the four-way vehicle fails, the wheel body can be converted into a freely movable "free wheel" to facilitate the removal of the failed vehicle.

[0016] Preferably, a guide hole is provided inside the clutch pin, the guide hole is coaxial with the fixed pin screw, and a section of the fixed pin screw is inserted into the guide hole, and a reset spring is sleeved on the outside of the fixed pin screw, one end of the reset spring is against the bottom surface of the guide hole and contacts the clutch pin. The reset spring is arranged so that after the clutch pin is separated from the fixed pin screw, the thread at the end of the clutch pin can be close to the thread in the mounting hole of the clutch flange shaft, thereby facilitating the installation and reset of the clutch pin.

[0017] Preferably, the clutch flange shaft comprises a clutch pin mounting hole and a second fixed keyway, a clutch pin with one end inserted in the wheel body is movably arranged in the clutch pin mounting hole, the second fixed keyway is arranged on the inner wall of the clutch flange shaft, the clutch flange shaft is connected with the flange limit sleeve and the power shaft through the second fixed keyway, and the second fixed keyway penetrates the clutch flange shaft axially along the clutch flange shaft, the clutch flange shaft can connect the four-way vehicle and the power shaft during normal operation of the four-way vehicle, thereby ensuring normal power output and operation of the four-way vehicle, and when the four-way vehicle fails, the coordination with the wheel body can be released, so that the wheel body is converted into a "free wheel" that can rotate freely without being constrained by the power shaft, thereby facilitating the removal of the four-way vehicle.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention utilizes a connecting mechanism and a clutch mechanism to connect the wheel body with the power shaft. When the four-way vehicle is in use, the power shaft can be used to drive the wheel body to rotate, thereby ensuring normal power output and operation of the four-way vehicle. The disconnectable connection between the external clutch flange shaft and the wheel body in the clutch mechanism is utilized so that when the four-way vehicle fails, after the clutch flange shaft and the wheel body are released, the wheel body can rotate freely without being constrained by the power shaft, thereby facilitating the removal of the four-way vehicle. The technical solution of the present invention can make the four-way vehicle a small trailer in which all wheels can roll freely without adding external facilities, thereby greatly facilitating the movement of the failed vehicle in the warehouse, facilitating the removal of the failed vehicle, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the clutch mechanism and the connecting mechanism installed on the driving wheel of the sub-lane; Figure 2 This is a partial cross-sectional view of the driving wheel of the sub-lane; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is the exploded view of the driving wheel in the sub-lane; Figure 6 It is a three-dimensional schematic diagram of the main body of the wheel in the driving wheel of the sub-lane; Figure 7 It is a three-dimensional schematic diagram of the clutch flange axis; Figure 8 It is a partial cross-sectional view of the wheel body and the clutch flange shaft in the sub-lane driving wheel after the mating is released; Fig. 9 This is a partial cross-sectional view of the driving wheel of the main lane; Fig.10 It is a partial cross-sectional view of the main roadway driving wheel body and the clutch flange shaft after the mating is released; Fig.11 This is the explosion diagram of the driving wheel in the main lane; Fig.12 A schematic diagram of the physical strength after the main lane driving wheels and the sub-lane driving wheels are installed on the four-way vehicle; Description of the accompanying drawings: 1-wheel body, 11-mounting ring, 12-fixed screw mounting hole, 13-sliding sleeve limit platform, 14-fixed screw, 15-clutch pin limit hole, 16-clutch pin sliding hole, 2-clutch mechanism, 201-clutch flange shaft, 202-fixed pin screw, 203-clutch pin, 204-sliding sleeve, 205-clutch pin mounting hole, 206-functional hole, 207-second fixed keyway, 208-fixed key, 209-reset spring, 210-limit platform, 211- Guide hole, 212-fixed pin screw fixing hole, 213-clutch pin adjustment hole, 3-connecting mechanism, 31-flange limiting sleeve, 32-bridge sprocket, 33-limiting flange, 34-fixed pin screw mounting hole, 35-fixed key fixing hole, 36-fixed screw connecting hole, 4-power shaft, 41-first fixed keyway, 42-transmission gear, 43-wheel fixing nut, 5-installation mechanism, 51-wheel fixing frame, 52-bearing, 53-limiting sleeve, 6-sub-lane driving wheel, 7-main lane driving wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the attached embodiment of the present invention Figure 1-12 , the technical solutions in the embodiments of the present invention are described in detail. Example 1

[0021] like Figure 1 , 2 As shown in 12, a driving wheel for a four-way vehicle in a stereoscopic warehouse includes a sub-alley driving wheel 6 and a main-alley driving wheel 7, wherein the sub-alley driving wheel 6 and the main-alley driving wheel 7 are connected to the four-way vehicle via a mounting mechanism 5, and the sub-alley driving wheel 6 and the main-alley driving wheel 7 both include a wheel body 1, a clutch mechanism 2 and a connecting mechanism 3, and the wheel body 1 is connected to a power shaft 4 on the four-way vehicle via the clutch mechanism 2 and the connecting mechanism 3.

[0022] The main function of the sub-alley driving wheel 6 is to drive the four-way vehicle to move in a narrow sub-alley. There are a total of 8 sub-alley wheels on the four-way vehicle, of which one is connected to each end of the power shaft on the sub-alley, which is the sub-alley driving wheel 6, and the other 6 are driven wheels, which are connected to the sub-alley driving wheel 6 through a chain.

[0023] The main function of the main lane driving wheel 7 is to drive the four-way vehicle to move in the slightly wider main lane. There are a total of 4 main lane wheels on the four-way vehicle, one of which is connected to each end of the power shaft on the main lane, which is the main lane driving wheel 7, and the other two are driven wheels, which are connected to the main lane driving wheel 7 through a chain. The sub-lane driving wheel 6 and the main lane driving wheel 7 have similar structures. The main difference lies in the difference in the clutch mechanism 2. Because the sub-lane is narrower and the main lane is slightly wider, the main difference between the two is that the clutch mechanism 2 on the main lane driving wheel 7 has fewer parts than the clutch mechanism 2 on the sub-lane driving wheel 6, that is, the main lane driving wheel 7 is a simplification of the sub-lane driving wheel 6. The specific differences are explained in detail below.

[0024] The clutch mechanism 2 is arranged to disconnect the connection between the wheel body 1 in the sub-lane driving wheel 6 or the main lane driving wheel 7 and the power shaft 4 on the four-way vehicle when the four-way vehicle fails, so that the wheel body 1 is converted into a "free wheel" that can rotate freely without being constrained by the power shaft, thereby facilitating the removal of the four-way vehicle.

[0025] The function of the connecting mechanism 3 is to connect the clutch structure 2 connected to the wheel body 1 in the sub-lane driving wheel 6 or the main lane driving wheel 7 with the power shaft 4 on the four-way vehicle. When the four-way vehicle is in use, the power shaft 4 can drive the wheel body 1 to rotate, thereby ensuring the normal power output and operation of the four-way vehicle.

[0026] like Figure 1 , 5 As shown in , 6 and 11, the wheel body 1 is a circular metal wheel as a whole. In order to reduce shock and increase service life, a layer of polyurethane rubber is wrapped around the wheel body 1. In order to facilitate the connection between the wheel body 1 and the power shaft 4, a circular ring is protruded on the circular inner wall of the wheel body 1, and this ring is named as the mounting ring 11.

[0027] In order to facilitate the installation of the wheel body 1 and the clutch mechanism 2, six circular through holes are spaced apart on the annular end face of the mounting ring 11, three of which are countersunk holes, named as fixed screw mounting holes 12, and a bolt is passed through the fixed screw mounting hole 12, named as a fixed screw 14, and the wheel body 1 is connected to the bridge sprocket 32 ​​on the connecting mechanism 3 through the fixed screw 14.

[0028] The other three holes distributed at intervals on the mounting ring 11 are clutch flange shaft connecting holes, among which each clutch flange shaft connecting hole on the wheel body 1 in the sub-lane driving wheel is a two-section hole, that is, the diameter of the outer section hole is smaller than the diameter of the inner section hole. The outer section hole is named the clutch pin sliding hole 16, and the inner section hole is named the clutch pin limiting hole 15. One end of the clutch pin 203 in the clutch mechanism 2 can be inserted into this clutch flange shaft connecting hole.

[0029] Different from the clutch flange shaft connecting hole on the wheel body 1 in the sub-alley driving wheel, the clutch flange shaft connecting hole on the wheel body 1 in the main lane driving wheel is a round hole with an internal thread. The clutch flange shaft 201 in the clutch mechanism 2 is directly connected to the wheel body 1 through screws. Because the main lane is slightly wider, the screws connecting the clutch flange shaft 201 and the wheel body 1 can be disassembled and removed, so an ordinary screw connection method is used. However, the sub-alley is narrow, and the distance between the sub-alley driving wheel 6 and the sub-alley wall is small. The screws cannot be removed using this method. Therefore, a clutch pin 203 that can be received in the wheel body 1 is used to fix the wheel body 1 and the clutch flange shaft 201.

[0030] Definition: In this embodiment, the four-way vehicle is taken as a reference, and the direction from the sub-lane driving wheel 6 or the main lane driving wheel 7 to the four-way vehicle is the inner direction, and the opposite direction is the outer direction.

[0031] For the sake of distinction, this embodiment will be described below by taking the sub-lane driving wheel 6 as an example: like Figure 1 , 2 As shown in Figures , 3, 4, 5, 6 and 7, the clutch mechanism 2 in the sub-tunnel driving wheel 6 includes a clutch flange shaft 201, a fixed pin screw 202 and a clutch pin 203. The clutch flange shaft 201 is connected to the power shaft 4 through the connecting mechanism 3, the wheel body 1 is connected to the clutch flange shaft 201 through the clutch pin 203, the fixed pin screw 202 is connected to the bridge sprocket 32 ​​on the connecting mechanism 3, and the end of the fixed pin screw 202 is inserted into the wheel body 1.

[0032] The clutch flange shaft 201 is welded by a circular sleeve and an annular flange, and 6 circular through holes are spaced apart on the annular flange of the clutch flange shaft 201. Three of the spaced apart circular through holes are named clutch pin mounting holes 205 and the other three holes are named functional holes 206. The clutch pin mounting hole 205 corresponds to the clutch pin sliding hole 16 on the wheel body 1, and the functional hole 206 corresponds to the fixing screw mounting hole 12 on the wheel body 1. In order to facilitate the fixation of the wheel body 1, the size of the functional hole 206 is larger than the size of the fixing screw 14, that is, the fixing screw 14 can pass through the functional hole 206 to be connected with the wheel body 1.

[0033] In order to facilitate the installation of the clutch pin 203 , an internal thread is provided on the clutch pin installation hole 205 , and the connection between the clutch pin 203 and the clutch pin installation hole 205 can be released through the internal thread.

[0034] In order to facilitate the connection and installation of the clutch flange shaft 201 and the power shaft 4, a groove with a rectangular cross-section is opened on the inner wall of the sleeve in the clutch flange shaft 201, and this groove is named the second fixed key groove 207. In order to facilitate the installation of the clutch flange shaft 201, the second fixed key groove 207 is opened along the axial direction of the clutch flange shaft 201 and runs through both ends of the clutch flange shaft 201. The clutch flange shaft 201 is installed on the power shaft 4 through the second fixed key groove 207 using a fixed key 208. No relative movement can occur between the clutch flange shaft 201 fixed on the power shaft 4 and the power shaft 4.

[0035] like Figure 2 , 4 As shown in , 5 and 8, the clutch pin 203 is a cylindrical metal rod, and an external thread is provided on the outer wall of the outer section of the clutch pin 203. The clutch pin 203 cooperates with the clutch pin mounting hole 205 through the external thread and is installed on the clutch flange shaft 201.

[0036] In order to limit the position of the clutch pin 203, an annular boss is protruding perpendicularly to the outer wall on the outer wall of the inner end of the clutch pin 203, and this boss is named a limit platform 210. The outer diameter of the limit platform 210 is the same as the diameter of the clutch pin limit hole 15 on the mounting ring 11. When the clutch pin 203 is tightened on the clutch flange shaft 201, the end face of the limit platform 210 abuts against the bottom surface of the clutch pin limit hole 15 to prevent the clutch flange shaft 201 from shaking after being connected to the wheel body 1. A part of the clutch pin 203 connecting the clutch flange shaft 201 and the wheel body 1 is inside the clutch flange shaft 201, and the other part is inside the wheel body 1.

[0037] In order to facilitate the adjustment of the tightness of the clutch pin 203, a groove with a regular hexagonal cross-section is opened on the outer end face of the clutch pin 203, perpendicular to the end face, and this groove is named the clutch pin adjustment hole 213. The hexagonal wrench can be inserted into the clutch pin adjustment hole 213, and the clutch pin 203 can be rotated by the hexagonal wrench to retract the entire clutch pin 203 into the wheel body 1, thereby releasing the cooperation between the wheel body 1 and the clutch flange shaft 201, and converting the wheel body 1 into a "free wheel" that can rotate freely and is not constrained by the power shaft 4.

[0038] When the wheel body 1 is in contact with the clutch flange shaft 201, in order to fix the clutch pin 203 that exits the clutch flange shaft 201 and prevent the clutch pin 203 from moving and getting stuck in the clutch flange shaft 201 and damaging parts when the wheel body 1 rolls, a guide hole 211 is opened at the inner end of the clutch pin 203, and a fixed pin screw fixing hole 212 that is connected to the clutch pin adjustment hole 213 is opened on the bottom surface of the guide hole 211. When the clutch pin 203 exits the clutch flange shaft 201, the fixed pin screw fixing hole 212 can be screwed onto the end of the fixed pin screw 202 to fix the position and prevent the clutch pin 203 from being displaced when the wheel body 1 rolls.

[0039] When the clutch pin 203 screwed on the fixed pin screw 202 needs to be installed on the clutch flange shaft 201, in order to facilitate the thread at the end of the clutch pin 203 to be close to the thread on the clutch pin mounting hole 205 on the clutch flange shaft 201, a return spring 209 is inserted into the guide hole 211 in the clutch pin 203. One end of the return spring 209 is against the bottom surface of the guide hole 211, and the other end is sleeved on the fixed pin screw 202 and against the end surface of the bridge sprocket 32. The setting of the return spring 209 ensures that the end thread of the clutch pin 203 can be close to the thread on the clutch pin mounting hole 205 on the clutch flange shaft 201 during installation, which is convenient for installation.

[0040] When the wheel body 1 is converted into a "free wheel" that can rotate freely without being constrained by the power shaft, in order to prevent damage due to wear, an annular sleeve is sleeved on the clutch flange shaft 201, and this sleeve is named a sliding sleeve 204. The sliding sleeve 204 is made of ductile iron that has been carburized and has self-lubricating ability. When the wheel body 1 is converted into a "free wheel", it can rotate freely around the sliding sleeve 204. At the same time, in order to limit the sliding sleeve 204, a section of an annular sliding sleeve limit platform 13 is protruded perpendicular to the inner wall at the inner wall of the outer end face of the mounting ring 11 on the wheel body 1.

[0041] The main difference between the sub-lane driving wheel 6 and the main lane driving wheel 7 lies in the difference between the clutch mechanism 2 and the clutch flange shaft connecting hole on the wheel body 1. For the sake of distinction, this embodiment will be described by taking the main lane driving wheel 7 as an example from now on: like Fig. 9 , 10 As shown in FIG. 11 , the clutch mechanism 2 in the main lane driving wheel 7 includes a clutch flange shaft 201 , the clutch flange shaft 201 is connected to the power shaft 4 through a connecting mechanism 3 , and the wheel body 1 is connected to the clutch flange shaft 201 through screws.

[0042] The clutch flange shaft 201 on the main lane driving wheel 7 is welded by a circular sleeve and an annular flange, and 6 circular through holes are spaced apart on the annular flange of the clutch flange shaft 201, three of which are named functional holes 206, and the functional holes 206 correspond to the positions of the fixing screw mounting holes 12 on the wheel body 1, and in order to facilitate the fixation of the wheel body 1, the size of the functional hole 206 is larger than the size of the fixing screw 14, that is, the fixing screw 14 can pass through the functional hole 206 to connect with the wheel body 1, and the other three holes are connected with the threaded clutch flange shaft connecting holes on the wheel body 1 on the main lane driving wheel 7 to complete the connection between the clutch flange shaft 201 and the wheel body 1.

[0043] In order to facilitate the connection between the clutch flange shaft 201 and the power shaft 4, a groove with a rectangular cross-section is opened on the inner wall of the sleeve in the clutch flange shaft 201, and this groove is named the second fixed key groove 207. In order to facilitate the installation of the clutch flange shaft 201, the second fixed key groove 207 is opened along the axial direction of the clutch flange shaft 201 and runs through both ends of the clutch flange shaft 201. The clutch flange shaft 201 is installed on the power shaft 4 through the second fixed key groove 207 and using the fixed key 208.

[0044] When the wheel body 1 is converted into a "free wheel" that can rotate freely without being constrained by the power shaft, in order to prevent damage due to wear, an annular sleeve is sleeved on the clutch flange shaft 201, and this sleeve is named a sliding sleeve 204. The sliding sleeve 204 is made of ductile iron that has been carburized and has self-lubricating ability. When the wheel body 1 is converted into a "free wheel", it can rotate freely around the sliding sleeve 204. At the same time, in order to limit the sliding sleeve 204, a section of an annular sliding sleeve limit platform 13 is protruded perpendicular to the inner wall at the inner wall of the outer end face of the mounting ring 11 on the wheel body 1.

[0045] This is the introduction to the clutch mechanism 2 in the main lane driving wheel 7. The subsequent connecting mechanism and the mounting mechanism are the same.

[0046] like Figure 2 , 4 As shown in FIGS. 5 and 8 , the connecting mechanism 3 includes a flange limiting sleeve 31 and a bridge sprocket 32 ​​. The bridge sprocket 32 ​​is connected to the wheel body 1 via a fixing screw 14 . The flange limiting sleeve 31 for limiting the position of the clutch flange shaft 201 is sleeved on the power shaft 4 .

[0047] The flange limiting sleeve 31 is welded by a circular sleeve and an annular limiting flange 33 , and the inner end surface of the limiting flange 33 contacts the outer end surface of the clutch flange shaft 201 to prevent the clutch flange shaft 201 from displacement.

[0048] In order to facilitate the connection between the flange limit sleeve 31 and the power shaft 4, a rectangular through hole is opened on the sleeve of the flange limit sleeve 31 perpendicular to the sleeve and penetrates the single side wall of the sleeve. This through hole is named as a fixed key fixing hole 35. In order to facilitate the installation of the flange limit sleeve 31, the fixed key fixing hole 35 penetrates the inner end surface of the flange limit sleeve 31, that is, the inner end of the fixed key fixing hole 35 on the flange limit sleeve 31 is connected to the outside world. The flange limit sleeve 31 can be inserted into the fixed key 208 on the power shaft 4 through this fixed key fixing hole 35 to limit the position of the flange limit sleeve 31.

[0049] The bridge sprocket 32 ​​is an existing sprocket, and its main function is to connect with several other auxiliary driven wheels on the four-way vehicle through a chain. When it travels to the interface of the stereoscopic warehouse frame (commonly known as the bridge), the sub-lane driving wheel 6 or the main lane driving wheel 7 as the driving wheel is suspended in the air, and the driven wheel connected by the chain and in a non-suspended state can rotate normally to ensure the smooth movement of the four-way vehicle.

[0050] Six circular through holes are evenly opened on the circular end face of the bridge sprocket 32, and internal threads are opened on the inner walls of the circular through holes. Three of the through holes that are spaced apart are named as fixed pin screw mounting holes 34, and the fixed pin screw 202 is screwed into the fixed pin screw mounting holes 34. The other three holes are named as fixed screw connecting holes 36. The fixed screw 14 passes through the fixed screw mounting hole 12 on the mounting ring 11 and is screwed into the fixed screw connecting hole 36, thereby completing the connection and fixation between the wheel body 1 and the bridge sprocket 32.

[0051] like Figure 1 and 5 As shown, the power shaft 4 is a cylindrical shaft rod, and its main function is to connect with the driving part in the four-way vehicle to provide power support for the wheel body 1.

[0052] A transmission gear 42 is connected to one end of the power shaft 4 through a key, and the transmission gear 42 is meshed with the driving part inside the four-way car. A key groove is recessed perpendicular to the power shaft 4 on the arc surface at the other end of the power shaft 4, and this key groove is named the first fixed key groove 41. The flange limit sleeve 31 and the clutch flange shaft 201 are connected to the power shaft 4 through the first fixed key groove 41.

[0053] In order to facilitate the fixation of the wheel body 1, an external thread is opened on the end of the power shaft 4 close to the first fixed key groove 41, and a wheel fixing nut 43 is screwed on the thread. The wheel fixing nut 43 can restrict the wheel body 1 to the power shaft 4 to prevent the wheel body 1 from falling off the power shaft 4 during the use of the four-way vehicle.

[0054] like Figure 1 , 2As shown in Figure 5, the mounting mechanism 5 includes a wheel fixing frame 51, a bearing 52 and a limiting sleeve 53. The wheel fixing frame 51 is a fixing plate with a rectangular cross section. A bearing mounting ring is convexly provided on the middle part of the wheel fixing frame 51. The outer ring of the bearing 52 is fixed in the bearing mounting ring and the two move synchronously. The inner ring of the bearing 52 is fixed on the power shaft 4 and rotates with the power shaft 4. The main function of the wheel fixing frame 51 is to fix the power shaft 4 on the four-way vehicle.

[0055] In order to limit the position of the wheel body 1, a limit sleeve 53 is sleeved on the power shaft 4. The limit sleeve 53 includes a sleeve and a flange. The end of the sleeve is pressed against the bearing 52 through a gasket, and the flange end is pressed against the inner end face of the wheel body 1 and the clutch flange shaft 201 to prevent the wheel body 1 and the clutch flange shaft 201 from displacement.

[0056] The process of converting the sub-lane driving wheel 6 into a "freewheel" and the "freewheel" into a "non-freewheel" in this embodiment is as follows: when the four-way vehicle fails and cannot be moved, first use a smaller reciprocating ratchet wrench with an inner hexagonal wrench that matches the clutch pin adjustment hole 213 to insert it into the clutch pin adjustment hole 213 on the clutch pin 203, and then rotate the reciprocating ratchet wrench to move the clutch pin 203 out of the clutch pin mounting hole 205 until the clutch pin 203 rotates onto the fixed pin screw 202. At this time, the clutch pin 203 withdraws from the clutch flange shaft 201, and the return spring 209 is compressed. At this time, the wheel body 1 on the sub-lane driving wheel 6 is released from the clutch flange shaft 201. At this time, the wheel body 1 in the sub-lane driving wheel 6 is not constrained by the power shaft 4 and can rotate freely relative to the power shaft 4. At this time, the sub-lane driving wheel 6 is converted into a "freewheel".

[0057] When the sub-alley driving wheel 6 needs to be converted from a "free wheel" to a "non-free wheel", the clutch pin 203 can be rotated in the reverse direction. At this time, under the action of the return spring 209, the end thread of the clutch pin 203 is closely attached to the thread on the clutch pin mounting hole 205 on the clutch flange shaft 201, and the clutch pin 203 can accurately enter the clutch pin mounting hole 205 in the clutch flange shaft 201. At this time, the wheel body 1 is constrained by the power shaft 4, and rotates and stops under the action of the power shaft 4. At this time, the sub-alley driving wheel 6 is converted to a "non-free wheel".

[0058] The process of converting the main lane driving wheel 7 to a "free wheel" and the "free wheel" to a "non-free wheel" in this embodiment is as follows: when the four-way vehicle fails and cannot be moved, the bolts connected to the wheel body 1 can be removed by using a wrench. At this time, the wheel body 1 on the main lane driving wheel 7 is disconnected from the clutch flange shaft 201. At this time, the wheel body 1 in the main lane driving wheel 7 is not constrained by the power shaft 4 and can rotate relative to the power shaft 4. At this time, the main lane driving wheel 7 is converted into a "free wheel"; When the main lane driving wheel 7 needs to be converted from a "free wheel" to a "non-free wheel", the removed connecting bolts are screwed on to connect the clutch flange shaft 201 to the wheel body 1. At this time, the wheel body 1 is constrained by the power shaft 4 and rotates and stops under the action of the power shaft 4. At this time, the main lane driving wheel 7 is converted to a "non-free wheel". Example 2

[0059] The present application also discloses a driving wheel for a four-way vehicle in a stereoscopic warehouse, including a driving wheel, which includes a wheel body 1, and the wheel body 1 is connected to a clutch mechanism 2 installed on a power shaft 4 through a connecting mechanism 3. The clutch mechanism 2 can disconnect the connection between the wheel body 1 and the power shaft 4 when the four-way vehicle fails, and convert the wheel body 1 into a freely movable "free wheel" to facilitate the towing out of the failed four-way vehicle.

[0060] The driving wheel can be used as the driving wheel for the four-way vehicle to move in the sub-lane and the main lane at the same time. Due to the small spacing between the sub-lane, if the main lane driving wheel 7 in Example 1 replaces the original sub-lane driving wheel 6, then when the four-way vehicle fails in the sub-lane, it is impossible to release the clutch flange shaft 201 in the main lane driving wheel 7 and the wheel body 1 in the small space. Therefore, the main lane driving wheel 7 in Example 1 cannot be used as the sub-lane driving wheel 6.

[0061] The driving wheel provided in the present embodiment 2 can be used in both the sub-lane and the main lane. The driving wheel is exactly the same as the sub-lane driving wheel 6 in the embodiment 1. The normal movement of the four-way vehicle can be realized through the driving wheel. When the four-way vehicle fails, the rotating clutch pin 203 can release the connection between the wheel body 1 and the power shaft 4 in the driving wheel. At this time, the wheel body 1 is not constrained by the power shaft 4 and can rotate freely, so that the failed four-way vehicle can be moved out of the lane conveniently.

[0062] The driving wheel is exactly the same as the sub-tunnel driving wheel 6 in Example 1, both of which include a wheel body 1, a clutch mechanism 2 and a connecting mechanism 3. The clutch mechanism 2 is connected to the power shaft on the four-way vehicle through the connecting mechanism 3. The wheel body 1 is connected to the power shaft 4 by screwing the clutch pin 203 on the clutch flange shaft 201 into the clutch flange shaft 201 to achieve linkage. The clutch pin 203 withdraws from the clutch flange shaft 201, which can disconnect the connection between the wheel body 1 and the power shaft 1, thereby achieving free rotation of the wheel body 1.

[0063] In this embodiment, regarding the installation position of the driving wheel on the four-way vehicle and the connection relationship with the driven wheel, there are a total of 4 driving wheels installed on the four-way vehicle, two of which are respectively connected to the sub-lane power shaft on the four-way vehicle, and the other two are respectively connected to the main lane power shaft on the four-way vehicle, and the connection method is to use a connecting mechanism 3; After the driving wheel is set on the power shaft 4, the driven wheel is connected to the bridge sprocket 32 ​​on the driving wheel by a chain, and the rotation of the driving wheel can drive the driven wheel to rotate.

[0064] The process of converting the active wheel to a "freewheel" and the "freewheel" to a "non-freewheel" in this embodiment is as follows: when the four-way vehicle fails and cannot be moved, firstly, a reciprocating ratchet wrench with a smaller size and a hexagonal wrench that matches the clutch pin adjustment hole 213 is inserted into the clutch pin adjustment hole 213 on the clutch pin 203 in the active wheel, and then the reciprocating ratchet wrench is rotated to move the clutch pin 203 out of the clutch pin mounting hole 205 until the clutch pin 203 is rotated onto the fixed pin screw 202. At this time, the clutch pin 203 is withdrawn from the clutch flange shaft 201, and the return spring 209 is compressed. At this time, the wheel body 1 on the active wheel is disconnected from the clutch flange shaft 201. At this time, the wheel body is not constrained by the power shaft 4 and can rotate freely relative to the power shaft 4; When the driving wheel needs to be converted from a "free wheel" to a "non-free wheel", the clutch pin 203 can be rotated in the opposite direction. At this time, under the action of the return spring 209, the end thread of the clutch pin 203 is closely attached to the thread on the clutch pin mounting hole 205 on the clutch flange shaft 201, and the clutch pin 203 can accurately enter the clutch pin mounting hole 205 in the clutch flange shaft 201. At this time, the wheel body 1 is constrained by the power shaft 4, and rotates and stops under the action of the power shaft 4. At this time, the driving wheel is converted to a "non-free wheel".

[0065] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A driving wheel for a four-way vehicle in a three-dimensional warehouse, comprising a sub-lane driving wheel (6) and a main lane driving wheel (7), wherein the sub-lane driving wheel (6) and the main lane driving wheel (7) are connected to a power shaft (4) on the four-way vehicle to transmit power, characterized in that: The sub-lane driving wheel (6) and the main lane driving wheel (7) both comprise a wheel body (1), wherein the wheel body (1) is arranged on a power shaft (4) via a clutch flange shaft (201), wherein the clutch flange shaft (201) can controllably disconnect the wheel body (1) from the power shaft (4), and the wheel body (1) disconnected from the power shaft (4) can freely rotate relative to the power shaft (4).

2. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 1 is characterized in that: The sub-lane driving wheel (6) and the main lane driving wheel (7) further comprise a clutch mechanism (2) and a connection mechanism (3); the clutch mechanism (2) is fixed to the power shaft (4) via the connection mechanism (3); the wheel body (1) is connected to the clutch mechanism (2); the wheel body (1) is connected to the power shaft (4) under the action of the clutch mechanism (2) to achieve linkage; and a clutch flange shaft (201) in the clutch mechanism (2) can controllably disconnect the connection between the wheel body (1) and the power shaft (4).

3. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 2 is characterized in that: The connection mechanism (3) comprises a flange limiting sleeve (31), wherein the flange limiting sleeve (31) is connected to the power shaft (4) via a fixed key (208); The clutch mechanism (2) comprises a clutch pin (203) and a fixed pin screw (202); one end of the clutch pin (203) is screwed onto the clutch flange shaft (201), and the other end is movably inserted into the wheel body (1); the clutch pin (203) can be released from the clutch flange shaft (201) by rotating the clutch pin (203); the fixed pin screw (202) is arranged on the wheel body (1); the clutch pin (203) that is released from the clutch flange shaft (201) is screwed onto the fixed pin screw (202).

4. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 3 is characterized in that: A guide hole (211) is provided inside the clutch pin (203), the guide hole (211) being coaxial with the pin fixing screw rod (202), and a section of the pin fixing screw rod (202) is inserted into the guide hole (211), and a return spring (209) is sleeved outside the pin fixing screw rod (202), one end of the return spring (209) abuts against the bottom surface of the guide hole (211) and contacts the clutch pin (203).

5. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 1 is characterized in that: The clutch flange shaft (201) comprises a clutch pin mounting hole (205) and a second fixed keyway (207); a clutch pin (203) with one end inserted into the wheel body (1) is movably arranged in the clutch pin mounting hole (205); the second fixed keyway (207) is arranged on the inner wall of the clutch flange shaft (201); the clutch flange shaft (201) is connected to the flange limit sleeve (31) and the power shaft (4) via the second fixed keyway (207); and the second fixed keyway (207) penetrates the clutch flange shaft (201) along the axial direction of the clutch flange shaft (201).

6. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 1 is characterized in that: A sliding sleeve (204) is provided between the clutch flange shaft (201) and the wheel body (1), and the wheel body (1) disconnected from the power shaft (4) rotates freely along the sliding sleeve (204).

7. A driving wheel for a four-way vehicle in a three-dimensional warehouse, characterized in that: The invention comprises a driving wheel, wherein the driving wheel comprises a wheel body (1), a clutch mechanism (2) and a connecting mechanism (3); the clutch mechanism (2) is fixed to a power shaft (4) via the connecting mechanism (3); the wheel body (1) is connected to the clutch mechanism (2); the wheel body (1) is connected to the power shaft (4) under the action of the clutch mechanism (2); the clutch mechanism (2) can controllably disconnect the wheel body (1) from the power shaft (4); and the wheel body (1) disconnected from the power shaft (4) can rotate freely relative to the power shaft (4).

8. The driving wheel for the four-way vehicle in the three-dimensional storage according to claim 7 is characterized in that: The connection mechanism (3) comprises a flange limiting sleeve (31), wherein the flange limiting sleeve (31) is connected to the power shaft (4) via a fixed key (208); The clutch mechanism (2) comprises a clutch pin (203) and a fixed pin screw (202); one end of the clutch pin (203) is screwed onto the clutch flange shaft (201), and the other end is movably inserted into the wheel body (1); the clutch pin (203) can be released from the clutch flange shaft (201) by rotating the clutch pin (203); the fixed pin screw (202) is arranged on the wheel body (1); the clutch pin (203) that is released from the clutch flange shaft (201) is screwed onto the fixed pin screw (202).

9. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 8, characterized in that: A guide hole (211) is provided inside the clutch pin (203), the guide hole (211) being coaxial with the pin fixing screw rod (202), and a section of the pin fixing screw rod (202) is inserted into the guide hole (211), and a return spring (209) is sleeved outside the pin fixing screw rod (202), one end of the return spring (209) abuts against the bottom surface of the guide hole (211) and contacts the clutch pin (203).

10. The driving wheel for the four-way vehicle in the three-dimensional warehouse according to claim 8, characterized in that: The clutch flange shaft (201) comprises a clutch pin mounting hole (205) and a second fixed keyway (207); a clutch pin (203) with one end inserted into the wheel body (1) is movably arranged in the clutch pin mounting hole (205); the second fixed keyway (207) is arranged on the inner wall of the clutch flange shaft (201); the clutch flange shaft (201) is connected to the flange limit sleeve (31) and the power shaft (4) via the second fixed keyway (207); and the second fixed keyway (207) penetrates the clutch flange shaft (201) along the axial direction of the clutch flange shaft (201).

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