A stacker guide mechanism guard
By designing a protective device for the stacker crane's guide mechanism, the safety risks and equipment damage caused by the exposure of the guide structure were solved, achieving complete enclosure of the contact area between the guide wheel and the guide rail, thus improving operational safety and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYUN HONGHE TOBACCO (GRP) CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-08-04
AI Technical Summary
In the prior art, the exposure of the stacker crane's guide structure leads to operator safety risks and equipment damage problems, including mechanical injuries and wear and jamming caused by dust intrusion.
Design a protective device for the guide mechanism of a stacker crane. Two protective covers cover the guide wheels and fit into the guide rail cuts to form a complete enclosure, blocking the intrusion of impurities and the risk of personnel contact.
It effectively isolates operators from the risk of contact with high-speed moving parts, prevents dust and impurities from entering, improves equipment safety and operational reliability, extends equipment life and reduces maintenance costs.
Smart Images
Figure CN224590672U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mechanical equipment safety protection technology, and in particular to a protective device for a stacker crane guide mechanism, which is especially suitable for situations such as carton stackers in cigarette manufacturing workshops that require vertical lifting and guiding and where there are personnel operation safety risks and equipment protection needs. Background Technology
[0002] In the cardboard stacker system of the cigarette factory's tobacco processing workshop, such as Figure 1 As shown, the vertical lifting motion of the stacker crane relies on the guide wheels (300) installed at the four corners of its loading platform (200) rolling along the V-shaped working surface of the fixed vertical guide rail (100). Specifically, the guide wheels (300) are fixed to the loading platform (200) by connectors, and the V-shaped grooves on their wheels contact and roll with the working surface of the guide rail (100), thereby ensuring the stability and accuracy of the loading platform (200) during the lifting process.
[0003] However, the core components of this guiding structure—the V-shaped contact surface of the guide wheel (300), the V-shaped working surface of the guide rail (100), and the rolling contact area between them—are completely exposed during equipment operation. This exposure directly leads to significant safety hazards and equipment operation and maintenance challenges: on the one hand, when operators remove cartons or perform equipment maintenance near the stacker crane, they are highly susceptible to serious mechanical injuries such as squeezing and cutting due to accidental contact with the gap or rotating parts between the high-speed rotating guide wheel and guide rail by their limbs (especially their hands); on the other hand, the open environment allows external impurities such as dust, paper scraps, and oil to penetrate into the groove of the guide wheel without hindrance and adhere to the V-shaped contact surface of the guide wheel and the V-shaped working surface of the guide rail, causing abnormal wear, increased rolling resistance, and even jamming. This not only disrupts the stability and positioning accuracy of the stacker crane's lifting and lowering but also significantly shortens the service life of the guide wheel and guide rail. The personnel safety risks and equipment damage problems caused by the above-mentioned structural exposure not only threaten safe production but also significantly increase maintenance costs and reduce overall production efficiency due to frequent equipment maintenance, component replacement, and unplanned downtime.
[0004] Therefore, this application proposes a protective device for the guide mechanism of a stacker crane, which can effectively cover the V-shaped contact surface of the guide wheel and the V-shaped working surface contact area with the guide rail, ensuring the safety of operators, extending the service life of equipment, improving production efficiency and reducing operating costs. Utility Model Content
[0005] The main objective of this application is to provide a protective device for the guide mechanism of a stacker crane, which aims to solve the technical problems of personnel safety risks and equipment damage caused by structural exposure in the prior art.
[0006] To achieve the above objectives, this application provides the following technical solution: A protective device for a stacker crane's guiding mechanism, the stacker crane including an upright guide rail, a loading platform that moves up and down along the guide rail, and guide wheels disposed on the loading platform, the sidewalls of the guide wheels forming a V-shaped contact surface, and the guide rail having a V-shaped working surface adapted to the V-shaped contact surface; wherein, the protective device includes: Two protective covers are respectively located at both ends of the guide wheel's movement direction, and grooves are provided at the ends of the two protective covers that are close to each other; The mounting structure is located at the end of the protective cover away from the guide rail; The protective cover has a cutout on the side adjacent to the guide rail, and the outline of the cutout matches the V-shaped working surface. When the two protective covers are installed in place, the ends of the two protective covers that are close to each other abut against each other, so that the two grooves together surround and cover the guide wheel, and the two cutouts together cover the contact area between the V-shaped contact surface and the V-shaped working surface.
[0007] As a further improvement to this application, the protective cover includes: A horizontal baffle is provided at one end in the direction of movement of the guide wheel; A vertical baffle is perpendicularly connected to the end of the horizontal baffle that is furthest from the guide rail; An arc-shaped protective plate, the center of curvature of which coincides with the axis of the guide wheel, is connected at one end to the end of the horizontal baffle adjacent to the guide rail; Two side baffles are symmetrically arranged at both ends of the guide wheel axial direction, respectively connecting the horizontal baffle and the arc-shaped protective plate, and forming two slots with the vertical baffle respectively; The arc-shaped protective plate, the vertical baffle, and the two side baffles together define the groove, which is connected to two slots respectively.
[0008] As a further improvement of this application, the cut is located at the end of the arc-shaped protective plate adjacent to the guide rail, and its projection in the horizontal plane is a 90° V-shaped groove, which matches the cross-sectional profile of the V-shaped working surface of the guide rail.
[0009] As a further improvement of this application, the side baffle is provided with a semi-circular notch at one end near the axis of the guide wheel, the radius of which is equal to the radius of the guide wheel shaft; when the two protective covers are installed in place, the two semi-circular notches corresponding to the position are arranged opposite each other, together surrounding the end of the guide wheel shaft and forming a radial gap.
[0010] As a further improvement of this application, the installation structure includes: a U-shaped clamp and a locking member. The closed end of the U-shaped clamp is vertically fixed to the end of the horizontal baffle away from the guide rail via a connecting plate. The open end of the U-shaped clamp consists of two parallel clamping arms. The locking member passes through the two clamping arms. Tightening the locking member can cause the two clamping arms to press against the connecting part of the loading platform.
[0011] As a further improvement of this application, the locking element is a wing screw, and the clamping arm is provided with a threaded hole that mates with the wing screw.
[0012] The technical solution provided in this application may include the following beneficial effects: During use, the guide wheel is enclosed by the grooves of two protective covers, and the cuts precisely match the V-shaped working surface of the guide rail. This protective device achieves complete sealing and coverage of the V-shaped contact surface of the guide wheel and its rolling contact area with the guide rail. It not only completely isolates the risk of operators accidentally contacting high-speed moving parts, but also effectively prevents dust, paper scraps and other impurities from entering the guide mechanism, thereby simultaneously improving the safety and reliability of equipment operation. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a three-dimensional structural diagram of a stacker crane guide mechanism that includes protective devices; Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the protective shield Figure 1 ; Figure 3 This is a three-dimensional structural diagram of a protective device for a stacker crane's guiding mechanism; Figure 4 yes Figure 3 A three-dimensional structural diagram of the installation structure in the middle; Figure label: 100. Guide rail; 200. Cargo platform; 300. Guide wheels; 1. Protective cover; 11. Horizontal baffle; 12. Vertical baffle; 13. Arc-shaped protective plate; 14. Side baffle; 141. Semi-circular notch; 15. Connecting plate; 2. Installation structure; 21. U-shaped clamp; 22. Locking component; 3. Groove; 4. Cutout; 5. Slot. Detailed Implementation
[0015] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0017] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0018] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0019] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0020] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
[0021] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
[0022] Figure 1 An embodiment of a stacker crane guide mechanism protection device of this application is shown, see [link to relevant documentation]. Figure 1 In this embodiment, the stacker crane includes an upright guide rail 100, a loading platform 200 that moves up and down along the guide rail 100, and guide wheels 300 provided on the loading platform 200. The sidewalls of the guide wheels 300 form a V-shaped contact surface, and the guide rail 100 is provided with a V-shaped working surface that is adapted to the V-shaped contact surface. The protective device includes two protective covers 1 respectively provided at both ends of the guide wheel 300 in the direction of movement, and an installation structure 2 at the end of the protective cover 1 away from the guide rail 100.
[0023] Specifically, see Figure 1The two protective covers 1 each have a groove 3 at their adjacent ends, and a cut 4 on the side of the protective cover 1 adjacent to the guide rail 100. The outline of the cut 4 matches the V-shaped working surface. When the two protective covers 1 are installed in place, their adjacent ends abut each other, so that the two grooves 3 together enclose and cover the guide wheel 300, and the two cuts 4 together cover the contact area between the V-shaped contact surface and the V-shaped working surface. This solution, by using the grooves 3 of the two protective covers 1 to enclose and cover the guide wheel 300, and by using the cut 4 to precisely match the V-shaped working surface of the guide rail 100, achieves a complete closed coverage of the V-shaped contact surface of the guide wheel 300 and its rolling contact area with the guide rail 100. This not only completely isolates the risk of operators accidentally contacting high-speed moving parts, but also effectively prevents dust, paper scraps, and other impurities from entering the guide mechanism, thereby simultaneously improving the operational safety and reliability of the equipment.
[0024] Further, see Figure 2 The protective cover 1 includes a horizontal baffle 11, a vertical baffle 12, an arc-shaped protective plate 13, and two side baffles 14. The horizontal baffle 11 is located at one end of the guide wheel 300 in the direction of movement. The vertical baffle 12 is perpendicularly connected to the end of the horizontal baffle 11 away from the guide rail 100. The curvature center of the arc-shaped protective plate 13 coincides with the axis of the guide wheel 300, and one end of it is connected to the end of the horizontal baffle 11 adjacent to the guide rail 100. The two side baffles 14 are symmetrically arranged at both ends of the guide wheel 300 in the axial direction and are respectively connected to the horizontal baffle 11 and the arc-shaped protective plate 13. They also form two slots 5 with the vertical baffle 12 to respectively engage the support plates on both sides of the guide wheel in the axial direction. The arc-shaped protective plate 13, the vertical baffle 12, and the two side baffles 14 together define a groove 3, which is connected to the two slots 5. Through the coordinated design of the horizontal baffle 11, the vertical baffle 12 and the arc-shaped protective plate 13, and with the addition of symmetrical side baffles 14 to form a closed groove 3 covering the guide wheel 300, the protective cover 1 achieves all-round physical isolation of the axial, radial and rotational contact surfaces of the guide wheel 300. While eliminating the risk of accidental contact by personnel, it completely prevents dust and impurities from intruding into the core contact area of the guide mechanism.
[0025] Further, see Figure 3 The cut 4 is located at the end of the arc-shaped protective plate 13 adjacent to the guide rail 100. Its projection in the horizontal plane is a 90° V-shaped groove, which matches the cross-sectional profile of the V-shaped working surface of the guide rail 100. After installation, the protective cover 1 forms a seamless geometric sealing interface with the guide rail 100, completely blocking the possibility of dust entering the contact area of the guide wheel 300 from the joint between the protective cover 1 and the guide rail 100, while avoiding frictional interference between the protective cover 1 and the moving parts due to profile deviation.
[0026] Further, see Figure 3The side baffle 14 has a semi-circular notch 141 at one end adjacent to the axis of the guide wheel 300, the radius of which is equal to the radius of the guide wheel 300 shaft. When the two protective covers 1 are installed in place, the two semi-circular notches 141 at the corresponding positions are positioned opposite each other, together surrounding the end of the guide wheel 300 shaft and forming a radial gap. A non-contact physical isolation barrier is constructed around the rotation area of the shaft, completely eliminating the risk of operator's limbs or tools accidentally entering the end of the shaft and causing injury, while also preventing dust from entering the bearing interior along the shaft gap.
[0027] Optionally, the protective cover 1 is made of stainless steel with a thickness of 1mm, which can meet the strength and rigidity requirements of the protective cover 1.
[0028] Further, see Figure 3 and Figure 4 The installation structure 2 includes a U-shaped clamp 21 and a locking element 22. The closed end of the U-shaped clamp 21 is vertically fixed to the end of the horizontal baffle 11 away from the guide rail 100 via a connecting plate 15. The open end of the U-shaped clamp 21 consists of two parallel clamping arms. The locking element 22 passes through the two clamping arms, and tightening the locking element 22 can press the two clamping arms against the connecting part of the loading platform 200. This allows for quick assembly and disassembly of the protective cover 1 by a single person without modifying the original connecting part of the loading platform 200. At the same time, the clamping arm pressing mechanism ensures the anti-loosening stability of the protective device under the high-frequency vibration conditions of the stacker crane.
[0029] Optionally, the locking member 22 is a wing screw, and the clamping arm is provided with a threaded hole that mates with the wing screw.
[0030] In this embodiment, the protective device adopts a symmetrical split-type protective cover 1 structure. A closed groove 3 is formed by the combination of a horizontal baffle 11, a vertical baffle 12, and an arc-shaped protective plate 13, completely covering the guide wheel 300. Simultaneously, the 90° V-shaped cut 4 at the end of the arc-shaped protective plate 13 dynamically matches the V-shaped working surface of the guide rail 100, achieving a geometric seal. This design completely blocks the path of dust intrusion into the contact surface between the guide wheel 300 and the guide rail 100, significantly reducing the risk of dust intrusion and wear on the guide wheel 300. The semi-circular notch 141 (radius matching the shaft size) added to the end of the side baffle 14 surrounds the end of the shaft and retains a radial gap when the two covers are assembled, constructing a contactless isolation barrier. This simultaneously eliminates the risk of injury from accidental contact with the high-speed shaft and blocks the channel for dust to enter the bearing axially, effectively extending the bearing cleaning cycle. Mounting structure 2 employs a U-shaped clamp 21 and a wing screw locking design. The clamp arm's elastic deformation presses firmly against the connecting part of the loading platform 200, adapting to certain thickness tolerances and maintaining stability under high-frequency vibration conditions, preventing the protective cover 1 from loosening and falling off. The wing screws enable tool-free operation, significantly reducing single-person disassembly and assembly time and substantially improving maintenance efficiency. In terms of compatibility, the device requires no modification to the original structure of the loading platform 200, is compatible with the modification of multiple brands of stacker cranes, and effectively extends the service life of the guide wheels 300.
[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by this application; the dimensions of the drawings are not related to the specific physical object, and the physical object dimensions can be arbitrarily changed.
Claims
1. A protection device for a guide mechanism of a stacker, the stacker comprising upright rails (100), a carrier platform (200) that is raised and lowered along the rails (100), and a guide wheel (300) provided on the carrier platform (200), a side wall of the guide wheel (300) forming a V-shaped contact surface, the rails (100) being provided with a V-shaped working surface that matches the V-shaped contact surface; characterized in that, The protective device includes: Two protective covers (1) are respectively located at both ends of the guide wheel (300) in the direction of movement, and grooves (3) are provided at the ends of the two protective covers (1) that are close to each other. The mounting structure (2) is located at the end of the protective cover (1) away from the guide rail (100); The protective cover (1) has a cut (4) on one side adjacent to the guide rail (100), and the outline of the cut (4) matches the V-shaped working surface. When the two protective covers (1) are installed in place, the ends of the two protective covers (1) approach each other and abut, so that the two grooves (3) together surround and cover the guide wheel (300), and the two cuts (4) together cover the contact area between the V-shaped contact surface and the V-shaped working surface.
2. The guard of claim 1, wherein The protective cover (1) includes: A horizontal baffle (11) is provided at one end of the guide wheel (300) in the direction of movement; A vertical baffle (12) is perpendicularly connected to the end of the horizontal baffle (11) away from the guide rail (100); The arc-shaped protective plate (13) has its curvature center coincide with the axis of the guide wheel (300), and one end is connected to the end of the horizontal baffle (11) adjacent to the guide rail (100); Two side baffles (14) are symmetrically arranged at both ends of the axial direction of the guide wheel (300), respectively connecting the horizontal baffle (11) and the arc-shaped protective plate (13), and forming two slots (5) between them and the vertical baffle (12). The arc-shaped protective plate (13), the vertical baffle (12) and the two side baffles (14) together define the groove (3), and the groove (3) is connected to the two slots (5) respectively.
3. The guard of claim 2, wherein, The cut (4) is located at the end of the arc-shaped protective plate (13) near the guide rail (100), and its projection in the horizontal plane is a 90° V-shaped groove, which matches the cross-sectional profile of the V-shaped working surface of the guide rail (100).
4. The guard of claim 2, wherein The side baffle (14) has a semi-circular notch (141) at one end near the axis of the guide wheel (300), the radius of which is equal to the radius of the guide wheel (300) shaft. When the two protective covers (1) are installed in place, the two semi-circular notches (141) corresponding to the position are set opposite each other, together surrounding the end of the guide wheel (300) shaft and forming a radial gap.
5. The guard of claim 2, wherein The mounting structure (2) includes a U-shaped clamp (21) and a locking member (22). The closed end of the U-shaped clamp (21) is vertically fixed to the end of the horizontal baffle (11) away from the guide rail (100) via a connecting plate (15). The open end of the U-shaped clamp (21) consists of two parallel clamping arms. The locking member (22) passes through the two clamping arms. Tightening the locking member (22) can cause the two clamping arms to press against the connecting part of the loading platform (200).
6. The guard of claim 5, wherein, The locking element (22) is a wing screw, and the clamping arm is provided with a threaded hole that mates with the wing screw.