Lifting structure

Abstract

The invention discloses a lifting structure, relates to the technical field of carrying, and aims to improve the stability of the lifting structure. Comprising a driving part, driving pulleys and transmission belts. A mounting channel penetrating through the driving pulley in the axial direction of the driving pulley is formed in the driving pulley. The driving part is used for driving the driving pulley to rotate. One end of the transmission belt is fixed with the driving pulley, and the other end is used for hanging a to-be-hoisted object. And a connecting channel communicated with the mounting channel is formed in the peripheral wall of the driving pulley, and a transition cambered surface is further formed on the peripheral wall of the driving pulley. The connecting channel is provided with a first side wall and a second side wall which are arranged in sequence in the circumferential direction of the driving pulley, and the transition cambered surface is connected with the first side wall. The distance between the transition cambered surface and the axis of the driving pulley is gradually increased in the direction from the first side wall to the transition cambered surface. One end of the transmission belt extends into the mounting channel through the connecting channel, and the side face, close to the peripheral wall of the driving pulley, of the transmission belt makes contact with the transition arc face. The lifting device is used for lifting and conveying materials.

Description

Technical Field

[0001] The present invention relates to the field of material handling, and in particular, to a lifting structure. Background Art

[0002] As an important device in the material conveying system, the lifting structure is widely used in the field of material conveying. A lifting device is composed of multiple lifting structures to lift and convey materials.

[0003] In the related art, a lifting structure is usually composed of a pulley and a belt. One end of the belt is connected to the pulley, and the other end of the belt is used for hoisting materials. The driving device drives the pulley to rotate, so that the belt is wound around the pulley to realize the hoisting of materials. In this structure, an installation cavity is formed on the pulley, a rotating shaft connected to the driving device is arranged inside the installation cavity, and an opening communicating with the installation cavity is also formed on the pulley. One end of the belt extends into the installation cavity through the opening and is connected to the rotating shaft. And in order to facilitate the processing of the opening, the axis of the opening is usually perpendicular to the axis of the rotating shaft.

[0004] However, with the above structure, when the belt is wound around the pulley, after the belt winds around the pulley for one circle, along the circumferential direction of the pulley, there is a large height difference between the belt on one side of the opening and the belt on the other side of the opening. Therefore, when winding the second circle, the belt will shake due to the above height difference after passing through the opening, thus affecting the stability of the lifting structure. Summary of the Invention

[0005] An embodiment of the present invention provides a lifting structure to improve the stability of the lifting structure.

[0006] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0007] In a first aspect, the present application provides a lifting structure, including a driving member, a driving pulley, and a transmission belt. An installation channel is formed on the driving pulley, and the installation channel penetrates through the driving pulley along the axial direction of the driving pulley. The driving member is connected to the driving pulley and is used for driving the driving pulley to rotate. One end of the transmission belt is fixed to the driving pulley, and the other end of the transmission belt is used for hanging the object to be hoisted. Wherein, a connection channel communicating with the installation channel is formed on the peripheral wall of the driving pulley, and a transition arc surface is also formed on the peripheral wall of the driving pulley. Along the circumferential direction of the driving pulley, the connection channel has a first side wall and a second side wall arranged in sequence, and the transition arc surface is connected to the first side wall. Along the direction from the first side wall to the transition arc surface, the distance between the transition arc surface and the axis of the driving pulley gradually increases. One end of the transmission belt extends into the installation channel through the connection channel, and the side surface of the transmission belt close to the peripheral wall of the driving pulley contacts the transition arc surface.

[0008] Through the above arrangement, since the distance between the transition arc surface and the axis of the active pulley gradually increases in the direction of the transition arc surface pointing to the first side wall, the distance from the peripheral wall of the active pulley to the axis of the active pulley will be greater than the distance from the transition arc surface to the axis of the active pulley. In this way, when the transmission belt is wound around the active pulley, after the transmission belt is passed around the active pulley for one circle, the difference between the distance between the transmission belt near the first side wall and the axis of the active pulley and the distance between the transmission belt near the second side wall and the axis of the active pulley is smaller. Therefore, when the transmission belt is wound around the second circle, the transmission belt can smoothly transition on the peripheral wall of the active pulley without causing large shaking of the transmission belt, thereby ensuring the stability of the lifting structure.

[0009] In some embodiments of the present application, the wall surface of the first side wall is a first curved surface, and the first curved surface is tangent to the transition curved surface.

[0010] In this way, the transmission belt can enter the installation channel more smoothly when passing through the connecting channel, thereby reducing the degree of wear on the contact portion between the transmission belt and the first side wall, extending the service life of the transmission belt, and ensuring the stability of the lifting structure.

[0011] In some embodiments of the present application, the lifting structure further includes a connecting shaft and a first connecting member. The connecting shaft is disposed in the installation channel and connected to the active pulley, the axis of the connecting shaft coincides with the axis of the active pulley, and the output shaft of the driving member is connected to the connecting shaft. One end of the transmission belt is fixed to the connecting shaft through the first connecting member.

[0012] In this way, the transmission belt can be fixed to the active pulley. When the driving member drives the active pulley to rotate to wrap the transmission belt around the active pulley, the transmission belt can be stably wrapped around the peripheral wall of the active pulley, and then the transmission belt can be retracted and released by the rotation of the active pulley, thereby realizing the lifting and transportation of the hoisted object.

[0013] In some embodiments of the present application, the first connecting member includes a pressing plate and a first fastener. The first fastener is located in the installation channel, and one end of the transmission belt is located between the pressing plate and the peripheral wall of the connecting shaft. The first fastener passes through the pressing plate and the transmission belt and is threadedly connected to the connecting shaft.

[0014] In this way, the pressing plate and the first connecting member cooperate to fix one end of the transmission belt and the part in contact with the pressing plate, so that one end of the transmission belt can be more stably fixed to the connecting shaft, thereby further ensuring the stability of the lifting structure.

[0015] In some embodiments of the present application, a section of the transmission belt located between the pressing plate and the connecting channel and close to the side surface of the connecting shaft contacts the peripheral wall surface of the connecting shaft.

[0016] In this way, after one end of the transmission belt is fixed to the connecting shaft, the transition between the part of the transmission belt located in the installation channel and the part located on the circumferential wall of the driving pulley is relatively smooth, so that the wear of the transmission belt during operation can be reduced, the service life of the transmission belt can be extended, and the stability of the lifting structure can be ensured.

[0017] In some embodiments of the present application, the lifting structure further includes a guiding member. The guiding member includes a mounting portion, a first driven pulley, and a second driven pulley. The first driven pulley is rotatably connected to the mounting portion, and the rotation axis of the first driven pulley is parallel to the rotation axis of the driving pulley. The second driven pulley is rotatably connected to the mounting portion and is spaced apart from the driven pulley, and the rotation axis of the second driven pulley is parallel to the rotation axis of the driving pulley. The other end of the transmission belt passes through the gap between the first driven pulley and the second driven pulley and is in contact with both the first driven pulley and the second driven pulley.

[0018] With the above arrangement, when the transmission belt is affected by the air flow in the air, the first driven pulley and the second driven pulley can clamp the transmission belt.

[0019] So that the transmission belt is in a relatively stable state after passing through the gap between the first driven pulley and the second driven pulley, so that the resistance received by the transmission belt when winding on the driving pulley is small, thereby improving the stability of the transmission belt when winding on the driving pulley.

[0020] Moreover, by clamping the transmission belt with the first driven pulley and the second driven pulley, the amplitude of the shaking of the transmission belt can also be reduced, so that the transmission belt can stably lift and transport the object to be lifted, thereby ensuring the stability of the lifting structure.

[0021] In addition, by providing the first driven pulley and the second driven pulley, the transmission belt can lift and transport the object to be lifted in the vertical direction from the position where the first driven pulley and the second driven pulley are located. In this way, by changing the installation position of the guiding member, the transmission belt can be used to lift and transport the objects to be lifted at different positions. In this way, by respectively arranging the guiding member and the driving pulley at appropriate positions, it is convenient to increase the functions of the lifting structure and improve the applicability of the lifting structure.

[0022] In some embodiments of the present application, the lifting structure further includes a fixing member. The fixing member includes a supporting member and a moving member. The supporting member is used for connecting with the transport plate. The moving member is connected to the other end of the transmission belt and is connected to the supporting member, and the moving member can move relative to the supporting member in the vertical direction.

[0023] In this way, when using the lifting structure to lift and convey the transport plate, by adjusting the moving member, the moving member moves vertically relative to the supporting member, thereby adjusting the height of the part of the transport plate connected to the fixing member, so as to adjust the parallelism between the transport plate and the horizontal plane, ensuring that when lifting and conveying the object to be lifted, the transport plate can stably support the object to be lifted, and further ensuring the stable progress of the lifting and conveying work.

[0024] In some embodiments of the present application, the moving member includes a connecting portion and a first protruding portion. The connecting portion is connected to the other end of the transmission belt. The first protruding portion is connected to the connecting portion, and a first threaded hole extending in the vertical direction is provided on the first protruding portion.

[0025] The supporting member includes a supporting plate and a second protruding portion. The supporting plate is connected to the transport plate. The second protruding portion is connected to the supporting plate and is arranged vertically with the first protruding portion. A second threaded hole extending in the vertical direction is provided on the second protruding portion.

[0026] The fixing member further includes a second fastening member, and the second fastening member passes through the first threaded hole and the second threaded hole and is screwed to both the first threaded hole and the second threaded hole.

[0027] In this way, by screwing the second fastening member, the connection positions of the first protruding portion and the second protruding portion with the second fastening member can be adjusted, so that the distance between the first protruding portion and the second protruding portion can be changed, thereby adjusting the position of the moving member relative to the supporting member, and thus adjusting the height of the part of the transport plate connected to the fixing member, so as to adjust the parallelism between the transport plate and the horizontal plane, ensuring the stable progress of the lifting and conveying work.

[0028] In some embodiments of the present application, the connecting portion includes a first connecting plate and a second connecting plate. The first protruding portion is connected to the first connecting plate. In the thickness direction of the transmission belt, the second connecting plate is located on one side of the first connecting plate, and the other end of the transmission belt is located between the first connecting plate and the second connecting plate. The fixing member further includes a third fastening member, and the third fastening member passes through the second connecting plate and is connected to the first connecting plate to fix the other end of the transmission belt between the first connecting plate and the second connecting plate.

[0029] And / or, an adjustment hole extending horizontally through the supporting plate is provided on the supporting plate, and the adjustment hole extends in the vertical direction. The fixing member further includes a fourth fastening member, and the fourth fastening member passes through the adjustment hole and is screwed to the connecting portion.

[0030] In this way, the first connecting plate and the second connecting plate can clamp the other end of the transmission belt, and through the fastening action of the third fastening member, the other end of the transmission belt can be stably fixed between the first connecting plate and the second connecting plate, so that the transmission belt can drive the fixing member to lift, thereby realizing the function of the transmission belt to lift and convey the object to be lifted.

[0031] Moreover, when adjusting the third fastener to change the distance between the first protrusion and the second protrusion, the fourth fastener can be loosened, and the moving part can drive the fourth fastener to move vertically in the adjustment hole, so that the moving part and the adjustment hole limit the movement process of the moving part, thereby improving the stability of the adjustment of the moving part. In addition, after the adjustment of the moving part is completed, the fourth fastener can be tightened to connect the support plate and the connecting part, thereby increasing the firmness of the connection between the support plate and the connecting part.

[0032] In a second aspect, the present application further provides a lifting device, including at least one of the above-mentioned lifting structures and a transport plate. At least one of the above-mentioned lifting structures. The transport plate is connected to the other end of the conveyor belt.

[0033] In this way, multiple lifting structures cooperate with each other. By adjusting multiple fixing parts, the transport plate can be adjusted to be parallel to the horizontal plane more conveniently, so as to stably support the object to be lifted, ensuring the lifting and conveying function of the lifting device. At the same time, multiple lifting structures cooperate with each other, enabling the structure of the lifting device for the object to be lifted to be more stable, so as to better lift and convey the object to be lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic external structure diagram of the lifting structure provided by the embodiment of the present application;

[0035] Figure 2 is a schematic external structure diagram of the driving pulley and the connecting shaft provided by the embodiment of the present application;

[0036] Figure 3 is a schematic cross-sectional view of the lifting structure provided by the embodiment of the present application;

[0037] Figure 4 is Figure 3 a partial enlarged schematic view of part A in

[0038] Figure 5 is a schematic external structure diagram of a fixing part provided by the embodiment of the present application;

[0039] Figure 6 is another schematic external structure diagram of a fixing part provided by the embodiment of the present application;

[0040] Figure 7 is a schematic external structure diagram of the lifting device provided by the embodiment of the present application.

[0041] Reference numerals: 10 - lifting device; 1 - lifting structure; 11 - driving member; 12 - driving pulley; 121 - installation channel; 122 - connecting channel; 1221 - first side wall; 1222 - second side wall; 123 - transition arc surface; 13 - transmission belt; 14 - connecting shaft; 15 - first connecting member; 151 - pressing piece; 152 - first fastener; 16 - guiding member; 161 - installation portion; 162 - first driven pulley; 163 - second driven pulley; 164 - belt tearing sensor; 17 - fixing member; 171 - supporting member; 1711 - supporting plate; 171A - adjusting hole; 1712 - second protruding portion; 172 - moving member; 1721 - connecting portion; 172A - first connecting plate; 172B - second connecting plate; 1722 - first protruding portion; 173 - second fastener; 174 - third fastener; 175 - fourth fastener; 176 - nut; 177 - fifth fastener; 2 - transport plate; K - gap. Detailed implementation manners

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0044] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0045] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0046] As an important device in the material handling system, the lifting device is widely used in the field of material handling. The material is placed on the transport plate and then lifted and transported.

[0047] Among them, the lifting device can be used for the transportation of wafer cassettes. As an important material for manufacturing silicon semiconductor circuits, wafers are widely used in the semiconductor field. After being produced, the wafers are loaded into wafer cassettes and then transported to the storage area. To improve the transportation efficiency of wafer cassettes, the cooperation of tracks and overhead cranes is usually used to transport wafer cassettes.

[0048] Since the wafer cassette is generally located on the ground while the overhead crane is in the air, usually a lifting device is needed to transport the wafer cassette from the ground to the overhead crane, and then the overhead crane is started. The overhead crane can move on the track to transport the wafer cassette to the storage area.

[0049] Of course, the lifting device can also be used for the transportation of other materials or devices.

[0050] Based on this, the present application provides a lifting structure, as Figure 1 shown. The lifting structure 1 includes a driving member 11, a driving pulley 12, and a transmission belt 13. As Figure 2 shown, an installation channel 121 is formed on the driving pulley 12, and the installation channel 121 axially penetrates the driving pulley 12. The driving member 11 is connected to the driving pulley 12 and is used to drive the driving pulley 12 to rotate. One end of the transmission belt 13 is fixed to the driving pulley 12, and the other end of the transmission belt 13 is used to hang the object to be lifted.

[0051] In some examples, the driving member 11 is connected to the overhead crane, and the overhead crane drives the driving member 11, the driving pulley 12, the transmission belt 13, and the object to be lifted to move, so as to transport the object to be lifted to the required position.

[0052] In some examples, the driving member 11 includes a motor, and the output shaft of the motor is connected to the driving pulley 12.

[0053] Exemplarily, the transmission belt 13 can be a belt or a flat belt made of rubber or nylon.

[0054] In this way, the driving member 11 can drive the driving pulley 12 to rotate, so as to wind the transmission belt 13 around the driving pulley 12 or release the transmission belt 13 from the pulley, thereby enabling the other end of the transmission belt 13 to drive the object to be lifted to move up and down, realizing the lifting and transportation of the object to be lifted.

[0055] In the related art, an installation cavity is formed on the driving pulley 12, and an opening communicating with the installation cavity is formed. One end of the belt extends into the installation cavity through the opening and is fixed to the driving pulley 12. And in order to facilitate the machining of the opening, the axis of the opening is usually perpendicular to the axis of the rotating shaft.

[0056] However, with the above structure, when the belt is wound around the pulley, after the belt winds around the pulley for one circle, along the circumferential direction of the pulley, there is a large height difference between the belt on one side of the opening and the belt on the other side of the opening. Therefore, when winding the second circle, the belt will shake due to the above height difference after passing through the opening, thereby affecting the stability of the lifting structure 1.

[0057] Based on this, as Figure 2 、 Figure 3 shown, in the lifting structure 1 provided in the present application, a connection channel 122 communicating with the installation channel 121 is opened on the peripheral wall of the driving pulley 12, and a transition arc surface 123 is further formed on the peripheral wall of the driving pulley 12. As Figure 4 shown, along the circumferential direction of the driving pulley, the connection channel 122 has a first side wall 1221 and a second side wall 1222 arranged in sequence, and the transition arc surface 123 is connected to the first side wall 1221. Along the direction from the first side wall 1221 to the transition arc surface 123, the distance between the transition arc surface 123 and the axis of the driving pulley 12 gradually increases. One end of the transmission belt 13 extends into the installation channel 121 through the connection channel 122, and the side surface of the transmission belt 13 close to the peripheral wall of the driving pulley 12 contacts the transition arc surface 123.

[0058] It can be understood that the transition arc surface 123 protrudes in the direction from the axis of the driving pulley 12 to the peripheral wall of the driving pulley 12.

[0059] With the above arrangement, since along the direction from the first side wall 1221 to the transition arc surface 123, the distance between the transition arc surface 123 and the axis of the driving pulley 12 gradually increases, the distance from the peripheral wall of the driving pulley 12 to the axis of the driving pulley 12 will be greater than the distance from the transition arc surface 123 to the axis of the driving pulley 12. In this way, when the transmission belt 13 is wound around the driving pulley 12, after the transmission belt 13 winds around the driving pulley 12 for one circle, the difference between the distance from the transmission belt 13 near the first side wall 1221 to the axis of the driving pulley 12 and the distance from the transmission belt 13 near the second side wall 1222 to the axis of the driving pulley 12 is small. Thus, when the transmission belt 13 winds around the second circle, the transmission belt 13 can smoothly transition on the peripheral wall of the driving pulley 12 without causing large shaking of the transmission belt 13, thereby ensuring the stability of the lifting structure 1.

[0060] In some other embodiments, the above-mentioned transition arc surface 123 is a transition inclined surface, which can also enable the transmission belt 13 to pass through the connection channel 122 more stably, but preferably it is the transition arc surface 123.

[0061] Since the transmission belt 13 contacts the first side wall 1221 when entering the installation channel 121 through the connection channel 122, the part of the transmission belt 13 in contact with the first side wall 1221 will be worn. In some embodiments, as Figure 4 shown, the wall surface of the first side wall 1221 is a first arc surface, and the first arc surface is tangent to the transition arc surface 123.

[0062] It can be understood that the protruding direction of the first arc surface is the same as that of the transition arc surface 123.

[0063] In this way, when the transmission belt 13 enters the installation channel 121 through the connection channel 122, it can enter the installation channel 121 more smoothly, thereby reducing the degree of wear of the part of the transmission belt 13 in contact with the first side wall 1221, extending the service life of the transmission belt 13, and ensuring the stability of the lifting structure 1.

[0064] In some examples, the transition arc surface 123 forms the first side wall 1221.

[0065] In order to fix the transmission belt 13 to the driving pulley 12, in some embodiments, as Figure 2 、 Figure 3 shown, the above-mentioned lifting structure 1 further includes a connecting shaft 14 and a first connecting member 15. The connecting shaft 14 is arranged in the installation channel 121 and is connected to the driving pulley 12. The axis of the connecting shaft 14 coincides with the axis of the driving pulley 12, and the driving member 11 is connected to the connecting shaft 14. One end of the transmission belt 13 is fixed to the connecting shaft 14 through the first connecting member 15.

[0066] Exemplarily, the first connecting member 15 can be a screw. A through hole is provided at one end of the transmission belt 13 extending into the installation channel 121, a screw hole is provided on the connecting shaft 14, and the screw passes through the through hole on the transmission belt 13 and is screwed into the screw hole on the connecting shaft 14.

[0067] Alternatively, the first connecting member 15 can also be a bolt, and the bolt passes through the through hole of the transmission belt 13 and is connected to the connecting shaft 14.

[0068] In some examples, a fixing channel is provided on the connecting shaft 14, the axis of the fixing channel coincides with the axis of the connecting shaft 14, and the output shaft of the motor extends into the fixing channel and is connected to the connecting shaft 14.

[0069] In this way, the transmission belt 13 can be fixed to the driving pulley 12. When the driving member 11 drives the driving pulley 12 to rotate and winds the transmission belt 13 around the driving pulley 12, the transmission belt 13 can be stably wound around the circumferential wall of the driving pulley 12. Then, the rotation of the driving pulley 12 is used to wind and unwind the transmission belt 13, thereby realizing the lifting and conveying of the object to be hoisted.

[0070] On the basis of the above, in order to enable the end of the transmission belt 13 extending into the installation channel 121 to be more stably fixed to the connecting shaft 14, in some embodiments, as Figure 3 shown, the first connecting member 15 includes a pressing piece 151 and a first fastening member 152. The first fastening member 152 is located in the installation channel 121, and one end of the transmission belt 13 is located between the pressing piece 151 and the circumferential wall of the connecting shaft 14. The first fastening member 152 passes through the pressing piece 151 and the transmission belt 13 and is screwed to the connecting shaft 14.

[0071] Exemplarily, the first fastening member 152 can be a screw or a bolt.

[0072] Exemplarily, one or more first fastening members 152 can be provided.

[0073] Exemplarily, the material of the pressing piece 151 can be metal or rubber, etc. In this way, the cooperation between the pressing piece 151 and the first connecting member 15 can fix the part of the end of the transmission belt 13 in contact with the pressing piece 151, so that one end of the transmission belt 13 can be more stably fixed to the connecting shaft 14, thereby further ensuring the stability of the lifting structure 1.

[0074] In order to prevent the end of the transmission belt 13 from being worn after contacting the end of the pressing piece 151, in some embodiments, as Figure 3 shown, a section of the transmission belt 13 located between the pressing piece 151 and the connecting channel 122 and close to the side of the connecting shaft 14 is in contact with the circumferential wall surface of the connecting shaft 14.

[0075] In this way, after one end of the transmission belt 13 is fixed to the connecting shaft 14, the transition between the part of the transmission belt 13 located in the installation channel 121 and the part located on the circumferential wall of the driving pulley 12 is relatively smooth, thereby preventing the transmission belt 13 from being worn during operation, prolonging the service life of the transmission belt 13, and ensuring the stability of the lifting structure 1.

[0076] Since the transmission belt 13 is exposed to the air during the process of lifting and conveying the object to be hoisted, the transmission belt 13 will be affected by the air flow in the air, resulting in shaking. Furthermore, it will cause a large resistance when the transmission belt 13 is wound around the driving pulley 12, affecting the stability of the lifting structure 1.

[0077] To avoid the above problems, in some embodiments, such as Figure 3 shown, the lifting structure 1 further includes a guiding member 16. The guiding member 16 includes a mounting portion 161, a first driven pulley 162, and a second driven pulley 163. The first driven pulley 162 is rotatably connected to the mounting portion 161, and the rotation axis of the first driven pulley 162 is parallel to the rotation axis of the driving pulley 12. The second driven pulley 163 is rotatably connected to the mounting portion 161 and is spaced apart from the driven pulley. The rotation axis of the second driven pulley 163 is parallel to the rotation axis of the driving pulley 12. The other end of the transmission belt 13 passes through the gap K between the first driven pulley 162 and the second driven pulley 163 and is in contact with both the first driven pulley 162 and the second driven pulley 163.

[0078] It can be understood that the guiding member 16 and the driving pulley 12 are arranged at intervals in the horizontal direction.

[0079] With the above arrangement, when the transmission belt 13 is affected by the air flow in the air, the first driven pulley 162 and the second driven pulley 163 can clamp the transmission belt 13, so that the transmission belt 13 is in a relatively stable state after passing through the gap K between the first driven pulley 162 and the second driven pulley 163, thereby reducing the resistance when the transmission belt 13 is wound around the driving pulley 12 and improving the stability of the transmission belt 13 when it is wound around the driving pulley 12.

[0080] Moreover, by clamping the transmission belt 13 with the first driven pulley 162 and the second driven pulley 163, the amplitude of the shaking of the transmission belt 13 can also be reduced, so that the transmission belt 13 can stably lift and transport the object to be lifted, thereby ensuring the stability of the lifting structure 1.

[0081] In addition, by providing the first driven pulley 162 and the second driven pulley 163, the transmission belt 13 can lift and transport the object to be lifted in the vertical direction from the position where the first driven pulley 162 and the second driven pulley 163 are located. In this way, by changing the installation position of the guiding member 16, the transmission belt 13 can lift and transport the objects to be lifted at different positions. Thus, by respectively arranging the guiding member 16 and the driving pulley 12 at appropriate positions, it is convenient to increase the functions of the lifting structure 1 and improve the applicability of the lifting structure 1.

[0082] In some examples, a first rotating shaft is provided on the first driven pulley 162, a first mounting hole is provided on the mounting portion 161, and the first rotating shaft is rotatably connected to the first mounting hole. A second rotating shaft is provided on the second driven pulley 163, a second mounting hole is provided on the mounting portion 161, and the second rotating shaft is rotatably connected to the second mounting hole.

[0083] In some examples, only one mounting portion 161 is provided.

[0084] In some other examples, there are two installation parts 161. The first driven pulley 162 and the second driven pulley 163 are rotatably connected between the two installation parts 161, and the transmission belt 13 passes through the gap K between the first driven pulley 162 and the second driven pulley 163 between the two installation parts 161. In this way, the transmission belt 13 can be limited by the two installation parts 161 to prevent the transmission belt 13 from slipping out of the gap K between the first driven pulley 162 and the second driven pulley 163.

[0085] Moreover, by supporting the first driven pulley 162 from the opposite ends of the first driven pulley 162 and supporting the second driven pulley 163 from the opposite ends of the second driven pulley 163 by the two installation parts 161, the rotation process of the first driven pulley 162 and the second driven pulley 163 can be made more stable, so that the clamping of the transmission belt 13 by the first driven pulley 162 and the second driven pulley 163 can be made more stable, thereby improving the stability of the lifting structure 1.

[0086] Among them, the installation part 161 can be an installation plate, an installation frame, or an installation block, etc.

[0087] In some examples, the guide member 16 further includes a belt tearing sensor 164, and the belt tearing sensor 164 is used to detect whether the transmission belt 13 is broken, which is convenient for the staff to understand the working condition of the lifting structure 1.

[0088] In order to enable the transmission belt 13 to stably lift and transport the object to be lifted, in some embodiments, as Figure 3 shown, the lifting structure 1 further includes a fixing member 17, and the fixing member 17 includes a support member 171 and a moving member 172. The support member 171 is used to connect with the transport plate 2. The moving member 172 is connected to the other end of the transmission belt 13 and is connected to the support member 171, and the moving member 172 can move relative to the support member 171 in the vertical direction.

[0089] It should be noted that the lifting structure 1 can be used alone to lift the object to be lifted, or can be used in cooperation with other devices to lift the object to be lifted.

[0090] Exemplarily, the lifting structure 1 and other devices cooperate to lift the object to be lifted. At this time, the transport plate 2 can be used to carry the object to be lifted, and then the lifting structure 1 and other devices are used to lift and transport the transport plate 2.

[0091] Or, the lifting structure 1 and other devices can also be directly fixed to the object to be lifted to directly lift and transport the object to be lifted.

[0092] In this way, when the lifting structure 1 is used to lift and convey the transport plate 2, by adjusting the moving member 172, the moving member 172 moves relative to the supporting member 171 in the vertical direction, so as to adjust the height of the position where the transport plate 2 is connected to the supporting member 171, thereby adjusting the parallelism between the transport plate 2 and the horizontal plane, ensuring that when lifting and conveying the object to be lifted, the transport plate 2 can stably support the object to be lifted, and further ensuring the stable progress of the lifting and conveying work.

[0093] It can be understood that other devices can be the above-mentioned lifting structure 1, or can be a lifting device or a lifting equipment different from the above-mentioned lifting structure 1.

[0094] Exemplarily, a plurality of mounting holes can be arranged on the supporting member 171 in the vertical direction, and by connecting the moving member 172 to different mounting holes, the relative position between the moving member 172 and the supporting member 171 can be adjusted, that is, the moving member 172 can be moved relative to the supporting member 171 in the vertical direction.

[0095] Exemplarily, as Figure 5 shown, the moving member 172 includes a connecting portion 1721 and a first protruding portion 1722. The connecting portion 1721 is connected to the other end of the transmission belt 13. The first protruding portion 1722 is connected to the connecting portion 1721, and a first threaded hole extending in the vertical direction is formed in the first protruding portion 1722 ( Figure 5 not shown in the figure). The supporting member 171 includes a supporting plate 1711 and a second protruding portion 1712. The supporting plate 1711 is connected to the transport plate 2. The second protruding portion 1712 is connected to the supporting plate 1711 and is arranged vertically with the first protruding portion 1722. A second threaded hole extending in the vertical direction is formed in the second protruding portion 1712 ( Figure 5 not shown in the figure).

[0096] The fixing member 17 further includes a second fastener 173. The second fastener 173 passes through the first threaded hole and the second threaded hole and is screwed to both the first threaded hole and the second threaded hole.

[0097] Exemplarily, one first protruding portion 1722, one second protruding portion 1712 and one second fastener 173 can be provided.

[0098] Alternatively, a plurality of first protruding portions 1722, a plurality of second protruding portions 1712 and a plurality of second fasteners 173 can also be provided. The plurality of first protruding portions 1722 correspond to the plurality of second protruding portions 1712 one by one, and the plurality of second protruding portions 1712 correspond to the plurality of second fasteners 173 one by one; one second fastener 173 passes through one first threaded hole and one second threaded hole and is screwed to one first threaded hole and one second threaded hole.

[0099] Exemplarily, the second fastener 173 can be a screw, a bolt, or a screw rod.

[0100] In this way, by screwing the second fastener 173, the connection positions of the first protrusion 1722 and the second protrusion 1712 with the second fastener 173 can be adjusted, so that the distance between the first protrusion 1722 and the second protrusion 1712 can be changed, thereby adjusting the position of the moving member 172 relative to the supporting member 171, and then adjusting the height of the connection part of the transport plate 2 with the fixing member 17, so as to adjust the parallelism of the transport plate 2 with the horizontal plane and ensure the stable progress of the lifting and conveying work.

[0101] Exemplarily, the first protrusion 1722 can be located above the second protrusion 1712, or the first protrusion 1722 can be located below the second protrusion 1712.

[0102] Wherein, the first protrusion 1722 can be a bump or a protruding plate; the second protrusion 1712 can be a bump or a protruding plate.

[0103] Exemplarily, the connecting portion 1721 can be located above the supporting plate 1711, or the connecting portion 1721 can also be located on one side of the supporting plate 1711 in the horizontal direction.

[0104] In some examples, the supporting plate 1711 includes a vertical plate and a horizontal plate, and the vertical plate and the horizontal plate are connected together to form an "L" shape. The connecting portion 1721 and the supporting plate 1711 are arranged in the horizontal direction, the connecting portion 1721 is located above the horizontal plate, and the first protrusion 1722 is located below the second protrusion 1712. In this way, the first protrusion 1722 can move between the second protrusion 1712 and the horizontal plate, so that the second protrusion 1712 and the horizontal plate limit the first protrusion 1722 up and down, preventing the second fastener 173 from falling off the first threaded hole due to excessive movement of the moving member 172 and ensuring the stability of the lifting structure 1.

[0105] In some examples, the fixing member 17 further includes a nut 176, the nut 176 is sleeved on the second fastener 173 and is screwed with the second fastener 173, the nut 176 is located above the second protrusion 1712, and the second protrusion 1712 is located above the first protrusion 1722.

[0106] In this way, after the relative positions of the moving member 172 and the supporting member 171 are adjusted, the nut 176 can be rotated so that the nut 176 abuts against the second protrusion 1712, thereby making the connection between the second fastener 173 and the first protrusion 1722 stable and the connection between the second fastener 173 and the second protrusion 1712 stable, ensuring the stability of the lifting structure 1.

[0107] In some embodiments, the connecting portion 1721 may be a connecting block, and one end of the conveyor belt 13 for hanging the object to be hoisted is fixed to the connecting block by bolts, screws, rivets, etc., so as to realize the connection between the connecting portion 1721 and the conveyor belt 13.

[0108] In some other embodiments, as Figure 5 shown, the connecting portion 1721 includes a first connecting plate 172A and a second connecting plate 172B. The first protruding portion 1722 is connected to the first connecting plate 172A. The second connecting plate 172B is located on one side of the first connecting plate 172A along the thickness direction of the conveyor belt 13, and the other end of the conveyor belt 13 is located between the first connecting plate 172A and the second connecting plate 172B. The fixing member 17 further includes a third fastener 174, and the third fastener 174 passes through the second connecting plate 172B and is connected to the first connecting plate 172A, so that the first connecting plate 172A and the second connecting plate 172B fix the other end of the conveyor belt 13.

[0109] Exemplarily, the third fastener 174 may be a screw or a bolt.

[0110] In this way, the first connecting plate 172A and the second connecting plate 172B can clamp the other end of the conveyor belt 13 connected to the moving member 172, and through the fastening action of the third fastener 174, the other end of the conveyor belt 13 connected to the moving member 172 can be stably fixed between the first connecting plate 172A and the second connecting plate 172B, so that the conveyor belt 13 can drive the fixing member 17 to lift, thereby realizing the lifting and conveying function of the conveyor belt 13 for the object to be hoisted.

[0111] In some examples, the fixing member 17 further includes a plurality of fifth fasteners 177, and the plurality of fifth fasteners 177 sequentially pass through the second connecting plate 172B and the conveyor belt 13 and are connected to the first connecting plate 172A. In this way, the conveyor belt 13 can be more stably fixed between the first connecting plate 172A and the second connecting plate 172B.

[0112] In some embodiments, as Figure 6 shown, the support plate 1711 is provided with an adjustment hole 171A penetrating the support plate 1711 in the horizontal direction, and the adjustment hole 171A extends in the vertical direction. The fixing member 17 further includes a fourth fastener 175, and the fourth fastener 175 passes through the adjustment hole 171A and is screwed to the connecting portion 1721.

[0113] Exemplarily, the fourth fastener 175 may be a screw or a bolt.

[0114] Exemplarily, the fourth fastener 175 may be provided with one or a plurality.

[0115] In this way, when adjusting the third fastener 174 to change the distance between the first protruding portion 1722 and the second protruding portion 1712, the fourth fastener 175 can be loosened. The moving member 172 can drive the fourth fastener 175 to move vertically in the adjustment hole 171A, so that the moving member 172 and the adjustment hole 171A limit the movement process of the moving member 172, thereby improving the stability of the adjustment of the moving member 172. In addition, after the adjustment of the moving member 172 is completed, the fourth fastener 175 can be tightened to connect the support plate 1711 and the connecting portion 1721, thereby increasing the firmness of the connection between the support plate 1711 and the connecting portion 1721.

[0116] Based on the above solution, the present application further provides a lifting device, as Figure 7 shown. The lifting device includes at least one of the above-mentioned lifting structures 1 and a transport plate 2, and the transport plate 2 is connected to the other end of the transmission belt 13.

[0117] Wherein, the number of the lifting structures 1 can be one or multiple, such as two, three, four, etc.

[0118] When there are multiple lifting structures 1, each lifting structure 1 is connected to a different position of the transport plate 2. The multiple lifting structures 1 cooperate with each other. By adjusting the fixing members 17 of each lifting structure 1, the height of each position of the transport plate 2 can be conveniently adjusted, so that the levelness of the transport plate 2 can be conveniently adjusted, so that the lifting device 10 can stably support the object to be lifted, ensuring the lifting and conveying function of the lifting device. At the same time, the multiple lifting structures 1 cooperate with each other, enabling the structure of the lifting device for the object to be lifted to be more stable, so as to better lift and convey the object to be lifted.

[0119] In some examples, as Figure 7 shown, the lifting device includes three lifting structures 1. The guiding members 16 of each lifting structure 1 are all located above the transport plate 2, and the three transmission belts 13 are arranged in a triangle and connected to the transport plate 2.

[0120] In this way, the three lifting structures 1 can cooperate with each other to keep the transport plate 2 horizontal and stably support the object to be lifted, so that the lifting device can stably lift and convey the object to be lifted.

[0121] In addition, when one end of the transmission belt 13 extending into the installation channel 121 is at the limit position, that is, when there is no transmission belt 13 wound around the driving pulley 12 at this time, the transmission belt 13 is in a taut state. At the moment of starting and stopping of the driving member 11, the driving pulley 12 will apply a large force to one end of the transmission belt 13, causing the transmission belt 13 to shake and deform. At this time, the fixing member 17 can be adjusted to make the transmission belt 13 in a relaxed state, reducing the magnitude of the force received by one end of the transmission belt 13 when the driving member 11 starts and stops, so as to improve the service life of the transmission belt 13 and ensure the stability of the lifting device.

[0122] In the description of this specification, the specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0123] As described above, the above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A lifting structure, characterized in that, it includes, a driving member; a driving pulley, an installation channel is formed on the driving pulley, and the installation channel axially penetrates the driving pulley along the axis of the driving pulley; the driving member is connected to the driving pulley for driving the driving pulley to rotate; a transmission belt, one end of the transmission belt is fixed to the driving pulley, and the other end of the transmission belt is used for hanging an object to be hoisted; wherein, a connection channel communicating with the installation channel is opened on the peripheral wall of the driving pulley, and a transition arc surface is further formed on the peripheral wall of the driving pulley; along the circumferential direction of the driving pulley, the connection channel has a first side wall and a second side wall arranged in sequence, and the transition arc surface is connected to the first side wall; along the direction from the first side wall to the transition arc surface, the distance between the transition arc surface and the axis of the driving pulley gradually increases; one end of the transmission belt extends into the installation channel through the connection channel, and the side surface of the transmission belt close to the peripheral wall of the driving pulley contacts the transition arc surface.

2. The lifting structure according to claim 1, characterized in that, the wall surface of the first side wall is a first arc surface, and the first arc surface is tangent to the transition arc surface.

3. The lifting structure according to claim 1 or 2, characterized in that, the lifting structure further includes: a connecting shaft, which is arranged in the installation channel and is connected to the driving pulley, the axis of the connecting shaft coincides with the axis of the driving pulley, and the driving member is connected to the connecting shaft; a first connecting member, one end of the transmission belt is fixed to the connecting shaft through the first connecting member.

4. The lifting structure according to claim 3, characterized in that, the first connecting member includes: a pressing piece, the first fastener is located in the installation channel, and one end of the transmission belt is located between the pressing piece and the peripheral wall of the connecting shaft; a first fastener, the first fastener passes through the pressing piece and the transmission belt and is screwed to the connecting shaft.

5. The lifting structure according to claim 4, characterized in that, the side surface of the transmission belt between the pressing piece and the connection channel close to the connecting shaft contacts the peripheral wall surface of the connecting shaft.

6. The lifting structure according to claim 1 or 2, characterized in that, the lifting structure further includes a guiding member; the guiding member includes: an installation part; a first driven pulley, which is rotatably connected to the installation part, and the rotation axis of the first driven pulley is parallel to the rotation axis of the driving pulley; a second driven pulley, which is rotatably connected to the installation part and is spaced from the driven pulley, and the rotation axis of the second driven pulley is parallel to the rotation axis of the driving pulley; the other end of the transmission belt passes through the gap between the first driven pulley and the second driven pulley and contacts both the first driven pulley and the second driven pulley.

7. The lifting structure according to claim 1 or 2, characterized in that, the lifting structure further includes a fixing member, and the fixing member includes: a supporting member for connecting with a transport plate; The moving member is connected to the other end of the conveyor belt and is connected to the support member. The moving member is capable of moving relative to the support member in the vertical direction.

8. The lifting structure according to claim 7, wherein, the moving member includes: a connecting portion connected to the other end of the conveyor belt; a first protruding portion connected to the connecting portion, and a first threaded hole extending in the vertical direction is formed in the first protruding portion; the support member includes: a support plate connected to the transport plate; a second protruding portion connected to the support plate and arranged in the vertical direction with the first protruding portion; a second threaded hole extending in the vertical direction is formed in the second protruding portion, the fixing member further includes a second fastener, and the second fastener passes through the first threaded hole and the second threaded hole and is screwed to both the first threaded hole and the second threaded hole.

9. The lifting structure according to claim 8, wherein, the connecting portion includes: a first connecting plate, and the first protruding portion is connected to the first connecting plate; a second connecting plate, in the thickness direction of the conveyor belt, the second connecting plate is located on one side of the first connecting plate, and the other end of the conveyor belt is located between the first connecting plate and the second connecting plate; the fixing member further includes a third fastener, and the third fastener passes through the second connecting plate and is connected to the first connecting plate to fix the other end of the conveyor belt by the first connecting plate and the second connecting plate; and / or, an adjustment hole extending in the horizontal direction and passing through the support plate is formed in the support plate, and the adjustment hole extends in the vertical direction; the fixing member further includes a fourth fastener, and the fourth fastener passes through the adjustment hole and is screwed to the connecting portion.

10. A lifting device, wherein, it includes: at least one lifting structure according to any one of claims 1-9; a transport plate connected to the other end of the conveyor belt.

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