Jacking device and vehicle
By designing non-parallel limiting parts in the hoisting device, the problem of jamming caused by the loading platform of the hoisting device is solved, and a more stable and accurate material lifting is achieved.
Patent Information
- Application Number
- CN202422231857.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-10
AI Technical Summary
During operation, existing hoisting devices are prone to the problem of linear slide rail stagnation due to the loading platform being loaded.
The limiting member design is adopted so that the arrangement direction of the at least two limiting members is not parallel to the central axis of the middle articulation shaft, and the tilt of the hoisting platform is restricted by the limiting member to avoid stagnation.
It effectively avoids the lifting platform tilting under biased load, prevents stagnation, and improves the stability and movement accuracy of the device.
Smart Images
Figure CN223134030U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of mobile robots, and particularly relates to a lifting device and a vehicle. Background Art
[0002] With the rapid development of industrial automation, an automated guided vehicle (AGV) not only has efficient and accurate movement capabilities, but also can carry goods under various complex working conditions, and is widely used in various fields such as logistics warehousing and production line automation.
[0003] Among them, the body height of a latent lifting type AGV is low, so it can drive under a storage shelf, use a lifting device to lift the shelf, and move the shelf to a designated position. The lifting device for realizing the lifting of goods is the core of the latent lifting type AGV.
[0004] Currently, there are various lifting devices that can realize the lifting function. Among them, the link lifting device is widely used because of its low manufacturing cost and low original height. In the prior art, the link lifting device realizes the lifting function of goods through two linked link mechanisms and two linear slide rails arranged along the axis direction of the hinge axis. However, this kind of lifting device is prone to jamming of the linear slide rails due to uneven loading on the load platform during operation. Summary of the Utility Model
[0005] The present application provides a lifting device and a vehicle, which are used to solve the problem that the linear slide rails of the lifting device are prone to jamming due to uneven loading on the load platform during operation.
[0006] To achieve the above object, the present application adopts the following technical solutions:
[0007] In a first aspect, the present application provides a lifting device, which may include: a base, a lifting platform, a link mechanism, a power member, and a limiting member. The link mechanism is arranged between the base and the lifting platform. The link mechanism may include a first link and a second link. The first link is hinged to the base through a lower hinge axis, the second link is hinged to the lifting platform through an upper hinge axis, the first link and the second link are hinged through a middle hinge axis, and the axial directions of the upper hinge axis, the middle hinge axis, and the lower hinge axis are the same. The power member acts on the link mechanism to drive the lifting platform to move in a first direction, where the first direction is the arrangement direction of the lifting platform and the base. The limiting member may include a first limiting member and a second limiting member. Both the first limiting member and the second limiting member may include a first limiting portion and a second limiting portion. The first limiting portion is connected to the base, the second limiting portion is connected to the lifting platform, and the first limiting portion and the second limiting portion can move relatively in the first direction. The straight lines of the first limiting member and the second limiting member intersect with the central axis of the middle hinge axis. That is, the arrangement direction of the first limiting member and the second limiting member is not parallel to the central axis of the middle hinge axis.
[0008] Since the arrangement directions of the first limiting member and the second limiting member in this application are not parallel to the central axis of the middle hinge, thus, when the lifting platform is lifted or lowered, the plane formed by the moving directions of the first limiting portion or the second limiting portion of the two limiting members (i.e., the first limiting member and the second limiting member) is not parallel to the hinge axis. Compared with the related art where two linear sliding rails are arranged along the axial direction of the hinge axis, when the goods are unevenly loaded, if the goods drive the lifting platform to rotate and tilt around the axis of the hinge, the first limiting member and the second limiting member of the embodiment of this application can limit the tilt of the lifting platform, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform due to uneven loading of the goods.
[0009] In some embodiments of this application, the lifting platform includes a first side and a second side arranged along the axial direction of the middle hinge axis. The second limiting portion of the first limiting member is connected to the first side, and the second limiting portion of the second limiting member is connected to the second side. In this way, the first limiting member and the second limiting member are respectively arranged on both sides along the axial direction of the middle hinge axis. When the lifting platform is lifted or lowered, the plane formed by the moving directions of the first limiting portion or the second limiting portion of the first limiting member and the second limiting member is not parallel to the middle hinge axis. When the goods are unevenly loaded, if the goods drive the lifting platform to rotate and tilt around the axis of the hinge, the first limiting member and the second limiting member can limit the tilt of the lifting platform, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform due to uneven loading of the goods.
[0010] In some embodiments of this application, the limiting member further includes a third limiting member and a fourth limiting member. Both the third limiting member and the fourth limiting member can include a first limiting portion connected to the base and a second limiting portion connected to the lifting platform. Among them, the straight lines of the third limiting member and the fourth limiting member intersect with the central axis of the middle hinge axis. The third limiting member is connected to the first side, and the fourth limiting member is connected to the second side.
[0011] In this way, when the goods are unevenly loaded, if the goods drive the lifting platform to rotate and tilt around the axis of the hinge, the first limiting member, the second limiting member, the third limiting member, and the fourth limiting member of the embodiment of this application can all limit the tilt of the lifting platform, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform due to uneven loading of the goods.
[0012] In some embodiments of this application, the arrangement directions of the second limiting member and the third limiting member can be consistent with the central axis of the middle hinge axis, and the arrangement directions of the first limiting member and the fourth limiting member can also be consistent with the central axis of the middle hinge axis.
[0013] In this way, the arrangement directions of the second limiting member and the third limiting member can be parallel to the central axis of the middle hinge axis, and the arrangement directions of the first limiting member and the fourth limiting member can also be parallel to the central axis of the middle hinge axis, making the structural arrangement of the lifting device more orderly and beautiful.
[0014] In some embodiments of the present application, the first limiting member and the second limiting member may further include a third limiting portion, and the third limiting portion is slidably connected to both the first limiting portion and the second limiting portion along a first direction.
[0015] In this way, the first limiting portion and the second limiting portion can form two support points on the third limiting portion, which can improve the stability of the limiting member. At the same time, both the first limiting portion and the second limiting portion can cooperate with the third limiting portion to slide, and two contact surfaces can be formed, so that the pressure can be dispersed to each contact surface, thereby reducing the wear and damage of the limiting member.
[0016] In some embodiments of the present application, the first limiting portion and the second limiting portion may include one of a slider and a limiting slide rail. The limiting slide rail extends along the first direction, and the slider can cooperate with the limiting slide rail to slide within the limiting slide rail. The third limiting portion may include the other of the slider and the limiting slide rail.
[0017] In this way, both the first limiting portion and the second limiting portion can slide along the first direction in the third limiting portion, so that the lifting table can slide relative to the base along the first direction. At the same time, the slider and the slide rail cooperate with high precision, which can ensure the precision and stability of the movement of the slider on the slide rail.
[0018] In some embodiments of the present application, the first limiting portion and the second limiting portion may include one of a protrusion and a limiting chute. The limiting chute extends along the first direction, and the protrusion can cooperate with the limiting chute to slide within the limiting chute. The third limiting portion may include the other of the protrusion and the limiting chute.
[0019] In this way, both the first limiting portion and the second limiting portion can slide relative to the third limiting portion along the first direction, so that the lifting table can slide relative to the base along the first direction. At the same time, the protrusion and the chute cooperate with a simple structure and are easy to install, and can efficiently transmit power and motion.
[0020] In some embodiments of the present application, both the first limiting member and the second limiting member may include a support portion, and the support portion is disposed between the second limiting portion and the base, or the support portion is disposed between the first limiting portion and the lifting table.
[0021] In this way, when the lifting table suddenly drops due to a fault, the support portion can prevent the second limiting portion from directly colliding with the base, or the first limiting portion from directly colliding with the lifting table, thereby avoiding damage caused by the collision.
[0022] In some embodiments of the present application, both the first limiting member and the second limiting member include a buffer member, and the buffer member is disposed between the second limiting portion and the base, or the buffer member is disposed between the first limiting portion and the lifting table.
[0023] In this way, when the lifting platform suddenly descends due to a fault, the buffer can buffer the collision between the second limiting part and the base, or between the first limiting part and the lifting platform, avoiding damage caused by vibration or impact.
[0024] In some embodiments of the present application, the link mechanism may include a first link mechanism and a second link mechanism. Both the first link mechanism and the second link mechanism may include a first link and a second link. The first link mechanism and the second link mechanism are arranged at intervals in the second direction, the second direction is perpendicular to the axial direction of the middle hinge axis and perpendicular to the first direction.
[0025] In this way, both the first link mechanism and the second link mechanism can provide a fulcrum for the lifting platform, dispersing the load of the lifting platform, so that the movement of the lifting platform is more stable.
[0026] In some embodiments of the present application, the link mechanism may further include a lifting link. One end of the lifting link is hinged to the middle hinge axis of the first link mechanism, and the other end is hinged to the middle hinge axis of the second link mechanism.
[0027] In this way, the power member can drive the first link mechanism to move. The lifting link can transmit the movement of the first middle hinge axis to the second middle hinge axis, so that the second link mechanism moves synchronously with the first link mechanism, thereby driving the lifting platform to move in the first direction. In this way, the stability of power transmission can be improved and the power transmission efficiency can be enhanced.
[0028] In some embodiments of the present application, the lifting link may include a first lifting link and a second lifting link. The first lifting link and the second lifting link are arranged at intervals along the central axis direction of the middle hinge axis.
[0029] In this way, both the first lifting link and the second lifting link can transmit the movement of the first middle hinge axis to the second middle hinge axis, making the transmission more stable.
[0030] In some embodiments of the present application, both the first limiting member and the second limiting member may be arranged between the first lifting link and the second lifting link.
[0031] In this way, the spatial layout requirements of the lifting device in the central axis direction of the middle hinge axis can be reduced.
[0032] In some embodiments of the present application, the power member may include a driving device and a transmission device. The transmission device is connected between the driving device and the middle hinge axis.
[0033] The driving device can provide power. Since the transmission device is connected between the driving device and the middle hinge axis, the power can be transmitted from the driving device to the middle hinge axis. The middle hinge axis drives the link mechanism to move, so that the lifting platform can move in the first direction.
[0034] In some embodiments of the present application, the driving device may include a motor, and the transmission device may include a crank coaxially arranged with the output shaft of the motor, and a transmission connecting rod hinged to the middle hinge shaft.
[0035] In this way, the crank, the transmission connecting rod and the first connecting rod act together to form a crank-rocker mechanism. The crank is the driving member. The motor can drive the crank to rotate around the output shaft. The connecting rod is connected between the crank and the first connecting rod to transmit the motion to the first connecting rod. The first connecting rod acts as a rocker and makes a variable-speed reciprocating swing. The first connecting rod reciprocates and drives the jacking connecting rod to move in both the first direction and the second direction at the same time. Since the limiting member is connected between the base and the jacking table and can only move in the first direction, the jacking table can only move in the first direction. Therefore, the jacking connecting rod drives the second connecting rod to move, thereby driving the jacking table to move in the first direction.
[0036] In a second aspect, the present application also provides a vehicle including the above-mentioned jacking device. It should be noted that the technical effects brought by the implementation manners in the second aspect can refer to the technical effects brought by the corresponding implementation manners in the first aspect, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The drawings are used to provide a further understanding of the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present application to explain the technical solutions of the present invention and do not constitute a limitation to the technical solutions of the present invention.
[0038] Figure 1 It is an exploded view of a jacking device provided by an embodiment of the present application;
[0039] Figure 2 is Figure 1 one of the schematic structural diagrams of the jacking device shown;
[0040] Figure 3 is Figure 2 an enlarged view of the jacking device shown at A;
[0041] Figure 4 is Figure 2 one of the schematic structural diagrams of the jacking device in the jacking state;
[0042] Figure 5 is Figure 1 the other schematic structural diagram of the jacking device shown;
[0043] Figure 6 is Figure 5 one of the schematic structural diagrams of the jacking device in the jacking state.
[0044] Reference numerals: 100, jacking device;
[0045] 11. Base; 12. Lifting platform; 13. Link mechanism; 13A. First link mechanism; 13B. Second link mechanism; 131. First link; 132. Second link; 133. Middle hinge shaft; 133A. First middle hinge shaft; 133B. Second middle hinge shaft; 134. Lifting link; 134A. First lifting link; 134B. Second lifting link; 14. Power component; 141. Driving device; 141A. Motor; 142. Transmission device; 1421. Crank; 1422. Transmission link; 15. Limiting component; 15A. First limiting component; 15B. Second limiting component; 15C. Third limiting component; 15D. Fourth limiting component; 151. First limiting part; 1511. First slider; 152. Second limiting part; 1521. Second slider; 153. Third limiting part; 1531. Limiting slide rail; 154. Support part. Detailed implementation mode
[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.
[0047] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0048] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It 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 cannot be understood as a limitation to the present invention.
[0049] 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 application, unless otherwise stated, "at least one" means one or more, and "a plurality" means two or more.
[0050] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when describing pipelines, the terms "connected" and "coupled" used in this application have the meaning of conduction. The specific meaning needs to be understood in combination with the context.
[0051] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.
[0052] With the progress of technology and industrial upgrading, the automation and intelligence of industrial production are constantly improving. Automated Guided Vehicles (AGVs) are widely used in the fields of logistics warehousing or intelligent production due to their ability to efficiently and accurately transport materials.
[0053] As a key component of an AGV for lifting and lowering materials, when the AGV travels to a designated position, the lifting device lifts the material from the ground or other equipment as needed. The AGV transports it to the target position, and then the lifting device lowers the material to complete the transportation. The link-type lifting device has a low cost, a fast lifting speed, and a low original height, and can better lurk under the shelf for transportation.
[0054] In the prior art, the lifting device usually uses two connected link mechanisms and two linear slide rails arranged along the axis of the hinge shaft to achieve the lifting function of the goods. However, in the operation process of this lifting device, the linear slide rails are prone to jamming due to uneven loading of the load platform.
[0055] Based on this, the present application provides a lifting device, which may include a base, a lifting platform, a link mechanism, a power member, and a limiting member. The link mechanism includes a first link and a second link. The first link is hinged to the base through a lower hinge shaft, the second link is hinged to the lifting platform through an upper hinge shaft, and the first link and the second link are hinged through a middle hinge shaft. The power member provides power to the link mechanism, thereby driving the lifting platform to move along the arrangement direction of the lifting platform and the base, and further realizing the lifting and lowering of the material. The limiting member is also connected between the base and the lifting platform. The limiting member may be provided in multiple numbers, and the connection line between at least two limiting members intersects the central axis of the hinge shaft in the link mechanism, that is, the arrangement direction of at least two limiting members is not parallel to the central axis of the middle hinge shaft. In this way, when the lifting platform is lifted and lowered, the plane formed by the straight line where the two limiting members are located is not parallel to the hinge shaft. Compared with the related art in which two linear slide rails are arranged along the axial direction of the hinge shaft, when the goods are eccentrically loaded, if the goods drive the lifting platform to rotate and tilt around the axis of the hinge shaft, the two limiting members in the embodiment of the present application can limit the tilting of the lifting platform, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform due to eccentric loading of the goods.
[0056] Please refer to Figure 1 , Figure 1 FIG. is an exploded view of a lifting device 100 provided by an embodiment of the present application. The lifting device 100 may include a base 11, a lifting platform 12, a link mechanism 13, a power member 14, and a limiting member 15.
[0057] The link mechanism 13 is disposed between the base 11 and the lifting platform 12. The link mechanism 13 may include a first link 131 and a second link 132. The first link 131 is hinged to the base 11 through a lower hinge shaft, the second link 132 is hinged to the lifting platform 12 through an upper hinge shaft, and the first link 131 and the second link 132 are hinged through a middle hinge shaft 133. The axial directions of the upper hinge shaft, the middle hinge shaft 133, and the lower hinge shaft are the same.
[0058] Among them, the axial directions of the upper hinge shaft, the middle hinge shaft 133, and the lower hinge shaft being the same are not limited to being absolutely the same, but also include being approximately the same, that is, the axial directions of the upper hinge shaft, the middle hinge shaft 133, and the lower hinge shaft being approximately the same is sufficient. Exemplarily, the axial angle between the upper hinge shaft and the middle hinge shaft 133, the upper hinge shaft and the lower hinge shaft, or the middle hinge shaft 133 and the lower hinge shaft being less than 10° can be considered approximately the same.
[0059] The power member 14 acts on the link mechanism 13 to drive the lifting platform 12 to move in a first direction, where the first direction is the arrangement direction of the lifting platform 12 and the base 11.
[0060] The limiting member 15 may include a first limiting member 15A and a second limiting member 15B. Both the first limiting member 15A and the second limiting member 15B may include a first limiting portion 151 and a second limiting portion 152. The first limiting portion 151 is connected to the base 11, and the second limiting portion 152 is connected to the lifting platform 12. The first limiting portion 151 and the second limiting portion 152 can move relative to each other in a first direction. The straight line passing through the first limiting member 15A and the second limiting member 15B intersects the central axis of the middle hinge shaft 133. That is, the arrangement direction of the first limiting member 15A and the second limiting member 15B is not parallel to the central axis of the middle hinge shaft 133.
[0061] Since in this application, the arrangement direction of the first limiting member 15A and the second limiting member 15B is not parallel to the central axis of the middle hinge shaft 133. Thus, when the lifting platform 12 moves up and down, the plane formed by the moving directions of the first limiting portion 151 or the second limiting portion 152 of the two limiting members (i.e., the first limiting member 15A and the second limiting member 15B) is not parallel to the middle hinge shaft 133. Compared with the related art where two linear slide rails are arranged along the axial direction of the hinge shaft, when the goods are unevenly loaded, if the goods drive the lifting platform 12 to rotate and tilt around the axis of the hinge shaft, the first limiting member 15A and the second limiting member 15B of the embodiment of this application can limit the tilt of the lifting platform 12, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform 12 due to uneven loading of the goods.
[0062] In some embodiments of this application, the lifting platform 12 includes a first side and a second side arranged along the axial direction of the middle hinge shaft 133. The second limiting portion 152 of the first limiting member 15A is connected to the first side, and the second limiting portion 152 of the second limiting member 15B is connected to the second side.
[0063] In this way, the first limiting member 15A and the second limiting member 15B are respectively arranged on both sides along the axial direction of the middle hinge shaft 133. When the lifting platform 12 moves up and down, the plane formed by the moving directions of the first limiting portion 151 or the second limiting portion 152 of the first limiting member 15A and the second limiting member 15B is not parallel to the middle hinge shaft 133. When the goods are unevenly loaded, if the goods drive the lifting platform 12 to rotate and tilt around the axis of the hinge shaft, the first limiting member 15A and the second limiting member 15B can limit the tilt of the lifting platform 12, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform 12 due to uneven loading of the goods.
[0064] In some embodiments of the present application, the limiting member 15 further includes a third limiting member 15C and a fourth limiting member 15D. Both the third limiting member 15C and the fourth limiting member 15D may include a first limiting portion 151 connected to the base 11 and a second limiting portion 152 connected to the lifting platform 12. Among them, the straight line passing through the third limiting member 15C and the fourth limiting member 15D intersects the central axis of the middle hinge shaft 133. The third limiting member 15C is connected to the first side, and the fourth limiting member 15D is connected to the second side.
[0065] The straight line passing through the third limiting member 15C and the fourth limiting member 15D intersects the central axis of the middle hinge shaft 133. That is, the arrangement direction of the third limiting member 15C and the fourth limiting member 15D is not parallel to the central axis of the middle hinge shaft 133. Thus, when the lifting platform 12 moves up and down, the plane formed by the moving directions of the first limiting portion 151 or the second limiting portion 152 of the third limiting member 15C and the fourth limiting member 15D is not parallel to the middle hinge shaft 133.
[0066] In addition, both the first limiting member 15A and the third limiting member 15C are connected to the first side. When the lifting platform 12 moves up and down, the plane formed by the moving directions of the first limiting portion 151 and the second limiting portion 152 of the first limiting member 15A and the third limiting member 15C is not parallel to the middle hinge shaft 133. Both the second limiting member 15B and the fourth limiting member 15D are connected to the second side. When the lifting platform 12 moves up and down, the plane formed by the moving directions of the first limiting portion 151 and the second limiting portion 152 of the second limiting member 15B and the fourth limiting member 15D is not parallel to the middle hinge shaft 133.
[0067] In this way, when there is an eccentric load on the goods, if the goods drive the lifting platform 12 to rotate and tilt around the axis of the hinge shaft, the first limiting member 15A, the second limiting member 15B, the third limiting member 15C, and the fourth limiting member 15D in the embodiments of the present application can all limit the tilt of the lifting platform 12, thereby avoiding the jamming phenomenon that occurs during the movement of the lifting platform 12 due to eccentric loading of the goods.
[0068] In some embodiments of the present application, the arrangement direction of the second limiting member 15B and the third limiting member 15C may be consistent with the central axis of the middle hinge shaft 133, and the arrangement direction of the first limiting member 15A and the fourth limiting member 15D may also be consistent with the central axis of the middle hinge shaft 133.
[0069] In this way, the arrangement direction of the second limiting member 15B and the third limiting member 15C can be parallel to the central axis of the middle hinge shaft 133, and the arrangement direction of the first limiting member 15A and the fourth limiting member 15D can also be parallel to the central axis of the middle hinge shaft 133, making the structural arrangement of the lifting device 100 more orderly and beautiful.
[0070] Among them, the first limiting part 151 and the second limiting part 152 can be any combination of cooperating components that can achieve linear motion, and the present application does not limit this.
[0071] In some embodiments, the first limiting part 151 can be one of a slider and a limiting slide rail, and the second limiting part 152 can be the other of the slider and the limiting slide rail. Among them, the limiting slide rail extends along the first direction, and the slider can cooperate with the limiting slide rail for the slider to linearly slide along the first direction in the limiting slide rail. At the same time, the cooperation between the slider and the slide rail has relatively high precision, which can ensure the precision and stability of the slider moving on the slide rail.
[0072] In some embodiments, the first limiting part 151 can be one of a convex part and a limiting chute, and the second limiting part 152 can be the other of the convex part and the limiting chute. Among them, the limiting chute extends along the first direction, and the convex part can cooperate with the limiting slide rail for the convex part to linearly slide along the first direction in the limiting slide rail. At the same time, the cooperation between the convex part and the chute has a simple structure, is convenient for installation, and can efficiently transmit power and motion.
[0073] In some embodiments, the first limiting part 151 can be one of an optical axis and an optical axis bushing, and the second limiting part 152 can be the other of the optical axis and the optical axis bushing. Among them, the optical axis extends along the first direction, and the optical axis bushing can cooperate with the optical axis for the optical axis bushing to sleeved on the optical axis and linearly slide along the first direction. At the same time, due to the relatively low friction coefficient between the optical axis and the optical axis bushing, during the relative motion process, there is less energy loss, higher operating efficiency, less wear, and longer service life.
[0074] In some embodiments, the first limiting part 151 can be one of a linear bearing and a linear shaft or a lead screw, and the second limiting part 152 can be the other of the linear bearing and the linear shaft or the lead screw. Among them, the linear shaft or the lead screw extends along the first direction, and the linear bearing can cooperate with the linear shaft or the lead screw for the linear bearing to sleeved on the linear shaft or the lead screw and linearly slide along the first direction. At the same time, through the cooperation of the inner and outer rings and the rolling of the rolling elements of the linear bearing, a stable linear motion path is provided for the linear shaft, and the guiding property is better. The linear bearing can reduce the friction and wear between the linear shaft and the bearing, thereby extending the service life of the equipment.
[0075] In some embodiments provided by the present application, the first limiting member 15A and the second limiting member 15B can further include a third limiting part 153, and the third limiting part 153 is slidably connected to both the first limiting part 151 and the second limiting part 152 along the first direction.
[0076] Wherein, the first limiting part 151 and the second limiting part 152 are respectively slidably connected to two ends of the third limiting part 153, and both can perform linear motion along the third limiting part 153.
[0077] In this way, the first limiting part 151 and the second limiting part 152 form two support points on the third limiting part 153, which can improve the stability of the limiting member 15. At the same time, both the first limiting part 151 and the second limiting part 152 cooperate with the third limiting part 153 to slide, and two contact surfaces can be formed, and the pressure can be dispersed to each contact surface, thereby reducing the wear and damage of the limiting member 15.
[0078] The first limiting part 151 and the third limiting part 153, and the second limiting part 152 and the third limiting part 153 can be any combination of mutually cooperating combined elements capable of linear motion, and the present application does not limit this.
[0079] Optionally, the first limiting part 151 and the second limiting part 152 can be one of the above-mentioned slider and limiting slide rail, and the third limiting part can be the other of the slider and the limiting slide rail.
[0080] Exemplarily, as Figure 1 shown, the third limiting part 153 can be a limiting slide rail 1531, the first limiting part 151 can be a first slider 1511, and the second limiting part 152 can be a second slider 1521. In this way, both the first slider 1511 and the second slider 1521 can slide in the limiting slide rail 1531 along the first direction, so that the lifting table 12 can slide relative to the base 11 along the first direction.
[0081] Optionally, the first limiting part 151 and the second limiting part 152 can be one of the above-mentioned convex part and limiting chute, and the third limiting part can be the other of the convex part and the limiting chute.
[0082] Optionally, the first limiting part 151 and the second limiting part 152 can be one of the above-mentioned optical axis and optical axis bushing, and the third limiting part can be the other of the optical axis and the optical axis bushing.
[0083] Optionally, the first limiting part 151 and the second limiting part 152 can be one of the above-mentioned linear bearing and linear shaft, and the third limiting part can be the other of the linear bearing and the linear shaft.
[0084] It can be understood that the third limiting member 15C and the fourth limiting member 15D can also include the third limiting part 153, and its structure and effect can refer to the third limiting part 153 in the first limiting member 15A and the second limiting member 15B, which will not be elaborated here.
[0085] Please refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 2 is Figure 1 one of the structural schematic diagrams of the lifting device 100 shown in Figure 3 is Figure 2 the enlarged view of the lifting device 100 at A shown in Figure 4 is Figure 2 the structural schematic diagram of the lifting device 100 in the lifted state shown in
[0086] In this way, when the lifting table 12 suddenly drops due to a failure, the support portion 154 is arranged between the second limiting portion 152 and the base 11, which can prevent the second limiting portion 152 from directly colliding with the base 11, thereby avoiding damage caused by the collision.
[0087] In some other embodiments provided by the present application, the support portion 154 can also be arranged between the first limiting portion 151 and the lifting table 12. In this way, when the lifting table 12 suddenly drops due to a failure, it can prevent the first limiting portion 151 from directly colliding with the lifting table 12, thereby avoiding damage caused by the collision.
[0088] It can be understood that the third limiting member 15C and the fourth limiting member 15D can also include the support portion 154, and its structure and effect can refer to the support portion 154 in the first limiting member 15A and the second limiting member 15B, which will not be elaborated here.
[0089] In some embodiments provided by the present application, both the first limiting member 15A and the second limiting member 15B can include a buffer member. Wherein, the buffer member can be a structure or material capable of elastic deformation. Exemplarily, the buffer member can be a spring, rubber, foam, polymer or liquid buffer material, and can be specifically selected according to actual situations, and the present application does not limit this.
[0090] The buffer member can be arranged between the second limiting portion 152 and the base 11, or can also be arranged between the first limiting portion 151 and the lifting table 12.
[0091] In this way, when the lifting table 12 suddenly drops due to a failure, the buffer member can buffer the collision between the second limiting portion 152 and the base 11, or between the first limiting portion 151 and the lifting table 12, and avoid damage caused by vibration or impact.
[0092] It can be understood that when the first limiting member 15A and the second limiting member 15B include the supporting portion 154, the buffer member can be disposed between the second limiting portion 152 and the supporting portion 154, or can be disposed between the first limiting portion 151 and the supporting portion 154.
[0093] In this way, when the jacking table 12 suddenly drops due to a failure, the buffer member can buffer the collision between the second limiting portion 152 and the supporting portion 154, or between the first limiting portion 151 and the supporting portion 154, to avoid damage caused by vibration or impact.
[0094] It can be understood that the third limiting member 15C and the fourth limiting member 15D can also include the buffer member, and the structure and effect thereof can refer to the buffer member in the first limiting member 15A and the second limiting member 15B, which will not be elaborated herein.
[0095] Please refer to Figure 1 、 Figure 5 and Figure 6 , Figure 5 is Figure 1 the second schematic structural view of the jacking device 100 shown in Figure 6 is Figure 5 the schematic structural view of the jacking device in the jacking state shown in. In some embodiments of the present application, the link mechanism 13 can include a first link mechanism 13A and a second link mechanism 13B, and both the first link mechanism 13A and the second link mechanism 13B can include a first link 131 and a second link 132.
[0096] Wherein, the first link mechanism 13A and the second link mechanism 13B can be arranged at intervals along the second direction, and the second direction is a direction perpendicular to the central axis of the middle hinge shaft 133 and perpendicular to the first direction.
[0097] In this way, both the first link mechanism 13A and the second link mechanism 13B can provide a fulcrum for the jacking table 12 to disperse the load of the jacking table 12, so that the movement of the jacking table 12 is more stable.
[0098] Please continue to refer to Figure 1 . In some embodiments of the present application, the link mechanism 13 further includes a jacking link 134, one end of the jacking link 134 is hinged to the first middle hinge shaft 133A of the first link mechanism 13A, and the other end is hinged to the second middle hinge shaft 133B of the second link mechanism 13B.
[0099] In this way, the power member 14 can drive the first link mechanism 13A to move. The lifting link 134 can transmit the movement of the first middle hinge shaft 133A to the second middle hinge shaft 133B, so that the second link mechanism 13B moves synchronously with the first link mechanism 13A, thereby driving the lifting platform 12 to move in the first direction. In this way, the stability of power transmission can be improved and the transmission efficiency of power can be enhanced.
[0100] In some embodiments, a plurality of lifting links 134 may be provided, and the plurality of lifting links 134 are arranged at intervals along the central axis direction of the middle hinge shaft. Exemplarily, the lifting link 134 may include a first lifting link 134A and a second lifting link 134B. In this way, both the first lifting link 134A and the second lifting link 134B can transmit the movement of the first middle hinge shaft 133A to the second middle hinge shaft 133B, which can make the transmission more stable.
[0101] In some embodiments, both the first limiting member 15A and the second limiting member 15B are arranged between the first lifting link 134A and the second lifting link 134B. In this way, the space layout requirement of the lifting device 100 in the central axis direction of the middle hinge shaft can be reduced.
[0102] In some embodiments of the present application, the power member 14 may include a driving device 141 and a transmission device 142, and the transmission device 142 is connected between the driving device 141 and the middle hinge shaft 133.
[0103] The driving device 141 can provide power. Since the transmission device 142 is connected between the driving device 141 and the middle hinge shaft 133, the power can be transmitted from the driving device 141 to the middle hinge shaft 133, and the middle hinge shaft 133 drives the link mechanism 13 to move, so that the lifting platform 12 can move in the first direction.
[0104] In some embodiments of the present application, the driving device 141 may include a motor 141A, and the transmission device 142 may include a crank 1421 coaxially arranged with the output shaft of the motor 141A and a transmission link 1422 hinged to the middle hinge shaft 133.
[0105] In this way, the crank 1421, the transmission connecting rod 1422 and the first connecting rod 131 act together to form a crank-rocker mechanism. The crank 1421 is the driving member, and the motor 141A can drive the crank 1421 to rotate around the output shaft. The connecting rod 1422 is connected between the crank 1421 and the first connecting rod 131 to transmit the motion to the first connecting rod 131. The first connecting rod 131 acts as a rocker and makes a variable-speed reciprocating swing. The first connecting rod 131 reciprocates, driving the lifting connecting rod 134 to move in the first direction and the second direction at the same time. Since the limiting member 15 is connected between the base 11 and the lifting table 12 and the limiting member 15 can only move in the first direction, the lifting table 12 can only move in the first direction. Therefore, the lifting connecting rod 134 drives the second connecting rod 132 to move, thereby driving the lifting table 12 to move in the first direction.
[0106] The embodiment of the present application also provides a vehicle, which may include a lifting device 100. In this way, the vehicle can control the rotation of the motor 141A, thereby controlling the lifting and lowering of the lifting table 12, and further lifting, transporting and lowering the material.
[0107] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A jacking device, characterized in that, Comprising: A base (11); A lifting platform (12); A link mechanism (13) provided between the lifting platform (12) and the base (11); the link mechanism (13) includes a first link (131) and a second link (132) hinged by a middle hinge shaft (133), and the first link (131) is hinged to the base (11) by a lower hinge shaft, the second link (132) is hinged to the lifting platform (12) by an upper hinge shaft, and the axial directions of the upper hinge shaft, the middle hinge shaft (133), and the lower hinge shaft are the same; A power member (14) acting on the link mechanism (13) to drive the lifting platform (12) to move in a first direction, and the first direction is the arrangement direction of the lifting platform (12) and the base (11); A limiting member (15), including a first limiting member (15A) and a second limiting member (15B), both the first limiting member (15A) and the second limiting member (15B) include a first limiting portion (151) connected to the base (11) and a second limiting portion (152) connected to the lifting platform (12), and the first limiting portion (151) and the second limiting portion (152) can move relatively in the first direction; the straight line passing through the first limiting member (15A) and the second limiting member (15B) intersects the central axis of the middle hinge shaft (133).
2. The jacking device according to claim 1, wherein, The lifting platform (12) includes a first side and a second side arranged along the axial direction of the middle hinge shaft (133), and the second limiting portion (152) of the first limiting member (15A) is connected to the first side, and the second limiting portion (152) of the second limiting member (15B) is connected to the second side.
3. The jacking device according to claim 2, wherein, The limiting member (15) further includes a third limiting member (15C) and a fourth limiting member (15D), both the third limiting member (15C) and the fourth limiting member (15D) include a first limiting portion (151) connected to the base (11) and a second limiting portion (152) connected to the lifting platform (12); The straight line passing through the third limiting member (15C) and the fourth limiting member (15D) intersects the central axis of the middle hinge shaft (133); The third limiting member (15C) is connected to the first side, and the fourth limiting member (15D) is connected to the second side.
4. The jacking device according to claim 3, characterized in that, The arrangement direction of the second limiting member (15B) and the third limiting member (15C) is the same as the central axis of the middle hinge shaft (133); and / or, the arrangement direction of the first limiting member (15A) and the fourth limiting member (15D) is the same as the central axis of the middle hinge shaft (133).
5. The jacking device according to claim 1, characterized in that, The first limiting member (15A) and the second limiting member (15B) further include a third limiting portion (153), and the third limiting portion (153) is slidably connected to both the first limiting portion (151) and the second limiting portion (152) in the first direction.
6. The jacking device according to claim 5, wherein, The first limiting portion (151) and the second limiting portion (152) include one of a slider and a limiting slide rail. The limiting slide rail extends along the first direction, and the slider is engaged with the limiting slide rail to slide within the limiting slide rail; The third limiting portion (153) includes the other of the slider and the limiting slide rail.
7. The jacking device according to claim 5, characterized in that, The first limiting portion (151) and the second limiting portion (152) include one of a protruding portion and a limiting chute. The limiting chute extends along the first direction, and the protruding portion can be engaged with the limiting chute to slide within the limiting chute; The third limiting portion (153) includes the other of the protruding portion and the limiting chute.
8. The jacking device according to any one of claims 1-7, characterized in that, Both the first limiting member (15A) and the second limiting member (15B) include a supporting portion (154). The supporting portion (154) is disposed between the second limiting portion (152) and the base (11), or the supporting portion (154) is disposed between the first limiting portion (151) and the lifting table (12).
9. The jacking device according to any one of claims 1-7, characterized in that, Both the first limiting member (15A) and the second limiting member (15B) include a buffer member. The buffer member is disposed between the second limiting portion (152) and the base (11), or the buffer member is disposed between the first limiting portion (151) and the lifting table (12).
10. The jacking device according to any one of claims 1-7, characterized in that, The link mechanism (13) includes: a first link mechanism (13A) and a second link mechanism (13B). Both the first link mechanism (13A) and the second link mechanism (13B) include the first link (131) and the second link (132); The first link mechanism (13A) and the second link mechanism (13B) are spaced apart along a second direction. The second direction is perpendicular to the axial direction of the middle hinge shaft (133) and perpendicular to the first direction.
11. The lifting device according to claim 10, wherein The link mechanism (13) further includes a lifting link (134). One end of the lifting link (134) is hinged to the middle hinge shaft (133) of the first link mechanism (13A), and the other end is hinged to the middle hinge shaft (133) of the second link mechanism (13B).
12. The jacking device according to claim 11, wherein The lifting link (134) includes a first lifting link (134A) and a second lifting link (134B). The first lifting link (134A) and the second lifting link (134B) are spaced apart along the central axis direction of the middle hinge shaft (133).
13. The jacking device according to claim 12, characterized in that, Both the first limiting member (15A) and the second limiting member (15B) are disposed between the first lifting link (134A) and the second lifting link (134B).
14. The jacking device according to any one of claims 1-7, characterized in that, The power member (14) includes: A driving device (141); A transmission device (142) connected between the driving device (141) and the middle hinge shaft (133).
15. The jacking device according to claim 14, characterized in that, The driving device (141) includes a motor (141A); The transmission device (142) includes a crank (1421) coaxially arranged with the output shaft of the motor (141A), and a transmission connecting rod (1422) hinged to the middle hinge shaft (133).
16. A vehicle, characterized in that, It includes the jacking device according to any one of the above claims 1-15.