Mechanical cantilever lifting mechanism

Abstract

The application provides a mechanical cantilever lifting mechanism, which comprises a lifting column, a counterweight assembly installed above the lifting column, a driving sprocket assembly, a cantilever assembly, a linear slide rail, a driven sprocket assembly and a transmission chain assembly, the counterweight assembly is used for balancing the lifting of the cantilever assembly, the driving sprocket assembly and the transmission chain assembly are used for driving the cantilever assembly to move up and down, the cantilever assembly is used for rotating synchronously with the material after pressing the material, and the linear slide rail plays a guiding role on the cantilever assembly. The mechanical cantilever lifting mechanism is pure mechanical and power-free, the use requirement can be met through simple manual operation, various complex circuits are not needed, and the mechanical cantilever lifting mechanism is extremely suitable for use in a simple and power-free environment.

Description

Technical Field

[0001] This invention belongs to the field of mechanical equipment, and in particular relates to a mechanical cantilever lifting mechanism. Background Technology

[0002] The existing technology uses a motor to drive the elevator and uses a transmission method such as a ball screw or a gear rack to achieve the up-down and left-right adjustment. This method can achieve automated operation, which is convenient and labor-saving, but it requires an electric drive and complex wiring. However, it cannot be implemented in simple, non-powered environments or environments that may damage electronic components (such as X-ray exposure). Summary of the Invention

[0003] In view of this, the present invention aims to provide a mechanical cantilever lifting mechanism to solve the problem that existing lifting mechanisms cannot be used in environments without power or in environments that may damage electronic components.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows: A mechanical cantilever lifting mechanism includes a lifting column and a counterweight assembly mounted on top of it, a drive sprocket assembly, a cantilever assembly, a linear guide rail, a driven sprocket assembly, and a transmission chain assembly. The counterweight assembly is used to balance the lifting and lowering of the cantilever assembly; The drive sprocket assembly and the transmission chain assembly work together to drive the cantilever assembly to move up and down; The cantilever assembly is used to hold down the material and rotate synchronously with it. The linear guide rails serve to guide the cantilever assembly.

[0005] Furthermore, the counterweight component is a counterweight block, one end of which is slidably connected to the lifting column, and the other end is connected to the cantilever component through a transmission chain assembly.

[0006] Furthermore, the active sprocket assembly includes a welded body and a descending locking ratchet, an ascending locking ratchet, and a sprocket mounted on one side. The descending locking ratchet and the ascending locking ratchet are arranged side by side. The descending locking ratchet is controlled to rotate by a descending locking ratchet hook, and the ascending locking ratchet is controlled to rotate by an ascending locking ratchet hook. The sprocket, the descending locking ratchet, and the ascending locking ratchet work together through the chain of the transmission chain assembly to drive the cantilever unit. An active handwheel is mounted on the other side of the welded body, and the active handwheel is locked by a locking unit.

[0007] Furthermore, the lowering locking ratchet is located on one side of the lowering locking ratchet hook, and the lowering locking ratchet hook is rotatably connected to the mounting plate below it to control whether the lowering locking ratchet rotates.

[0008] Furthermore, a pressure spring is installed between the lowering locking ratchet hook and the mounting plate, and a lowering locking ratchet pressure shaft is installed on the side of the lowering locking ratchet hook away from the mounting plate. The lowering locking ratchet pressure shaft is limited by a locking plate.

[0009] Furthermore, both the rising ratchet pressure shaft locking plate and the falling ratchet pressure shaft locking plate are rotatably connected to the protective shell outside the drive sprocket assembly.

[0010] Furthermore, the locking unit includes an active rotating shaft cable fixing block and an active rotating shaft cable fixing handwheel. The rotating shaft of the active handwheel passes through the active rotating shaft cable fixing handwheel and the welded body and is fixedly connected to the descending locking ratchet and the ascending locking ratchet. An active rotating shaft cable fixing block is installed above the active rotating shaft cable fixing handwheel for locking the rotating shaft of the active handwheel.

[0011] Furthermore, the sprocket is also fixedly connected to the chain tensioning mechanism.

[0012] Furthermore, the cantilever unit includes a body and a guide rail mounted on it. A sliding seat that can reciprocate along the guide rail is provided above the guide rail, and a locking handle for limiting the position is provided on one side of the sliding seat.

[0013] Furthermore, the bottom of the body is provided with a groove, and a connecting shaft is installed below the sliding seat. After the connecting shaft passes through the groove of the body, a rotating pressure head is installed through a combined bearing.

[0014] Compared with existing technologies, the mechanical cantilever lifting mechanism of the present invention has the following advantages: (1) The mechanical cantilever lifting mechanism described in this invention is a purely mechanical, non-powered structure. It can meet the usage requirements through simple manual operation without adding various complex circuits, making it extremely suitable for use in simple, non-powered environments.

[0015] (2) The mechanical cantilever lifting mechanism of the present invention, by adding a counterweight component, not only makes the lifting of the mechanism more stable and safe, but also saves effort for manual operation.

[0016] (3) The mechanical cantilever lifting mechanism described in this invention has a double ratchet structure that not only prevents the cantilever from rising due to the reaction force when pressing materials, but also ensures the safety of the lifting operation through cooperation with the counterweight component, and there is no risk of sudden fall due to misoperation such as slipping or applying force in the opposite direction. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1This is a schematic diagram of the mechanical cantilever lifting mechanism described in an embodiment of the present invention; Figure 2 This is a schematic diagram of the active sprocket assembly described in an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the active sprocket assembly described in an embodiment of the present invention. Figure 2 ; Figure 4 This is a cross-sectional view of the mechanical cantilever lifting mechanism described in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of section A; Figure 6 This is a schematic diagram of the cantilever assembly described in an embodiment of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the cantilever assembly described in an embodiment of the present invention. Figure 2 .

[0018] Explanation of reference numerals in the attached figures: 1-Lifting column; 2-Counterweight assembly; 3-Drive sprocket assembly; 31-Welded body; 32-Drive handwheel; 33-Lowering locking ratchet; 34-Rising locking ratchet; 35-Sprocket; 36-Rising locking ratchet hook; 37-Lowering locking ratchet hook; 38-Rising locking ratchet pressure shaft; 39-Lowering locking ratchet pressure shaft; 310-Pressure spring; 312-Driven rotating shaft cable fixing block; 311-Driven rotating shaft cable fixing handwheel; 313-Chain tensioning mechanism; 314-Rising ratchet pressure shaft locking plate; 15-Lower ratchet pressure shaft locking plate; 4-Cantilever assembly; 41-Body; 42-Guide rail; 43-Locking handle; 44-Sliding seat; 45-Connecting shaft; 46-Combined bearing; 47-Rotating pressure head; 5-Linear slide rail; 6-Driven sprocket assembly; 7-Transmission chain assembly. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] A mechanical cantilever lifting mechanism, such as Figures 1 to 7 As shown, it includes a lifting column 1 and a counterweight assembly 2, a drive sprocket assembly 3, a cantilever assembly 4, a linear guide rail 5, a driven sprocket assembly 6, and a transmission chain assembly 7 mounted on top of it. The counterweight assembly 2 is used to balance the lifting and lowering of the cantilever assembly 4; The drive sprocket assembly 3 and the transmission chain assembly 7 work together to drive the cantilever assembly 4 to move up and down. Cantilever assembly 4 is used to press down on the material and rotate synchronously with the material; The linear guide rail 5 serves as a guide for the cantilever assembly 4.

[0024] The lifting column 1 forms the main body of the machine, using a square wide flange and square tube welded together for greater stability. The counterweight assembly 2 works in conjunction with the cantilever for balanced lifting. Since the cantilever itself has a certain weight, and lifting is done manually, this counterweight mechanism is added to reduce effort during operation, balancing the forces at both ends. This not only saves effort but also makes the lifting action more stable. The counterweight assembly 2 is preferably a counterweight block, with one end slidably connected to the lifting column 1 and the other end fixedly connected to the transmission chain assembly 7. The other end of the transmission chain assembly 7 is also connected to the cantilever assembly 4. The linear guide rail 5 provides guiding sliding; the driven sprocket assembly 6 transmits and guides the chain.

[0025] The drive sprocket assembly 3 includes a welded body 31 and a descending locking ratchet 33, a rising locking ratchet 34, a sprocket 35, a rising locking ratchet hook 36, a descending locking ratchet hook 37, a rising locking ratchet pressure shaft 38, a descending locking ratchet pressure shaft 39, and a pressure spring 310 mounted on one side thereon. The descending locking ratchet 33 and the rising locking ratchet 34 are arranged side by side. The descending locking ratchet 33 is controlled to rotate by the descending locking ratchet hook 37. Specifically, the descending locking ratchet 33 is located on one side of the descending locking ratchet hook 37, and the descending locking ratchet hook 37 is located below it. The mounting plate is rotatably connected to control whether the lowering locking ratchet 33 rotates; preferably, a pressure spring 310 is also installed between the lowering locking ratchet hook 37 and the mounting plate, and a lowering locking ratchet pressure shaft 39 is also installed on the side of the lowering locking ratchet hook 37 away from the mounting plate, and the lowering locking ratchet pressure shaft 39 is limited by the lowering ratchet pressure shaft locking plate 315; the upper locking ratchet 34 is controlled to rotate by the upper locking ratchet hook 36, specifically, the upper locking ratchet 34 is located on one side of the upper locking ratchet hook 36, and the upper locking ratchet hook 36 is connected to its lower side. The connecting plate provided is rotatably connected to control whether the rising locking ratchet 34 rotates; preferably, a pressure spring is also installed between the rising locking ratchet hook 36 and the connecting plate, and a rising locking ratchet pressure shaft 38 is also fixedly installed on the side of the rising locking ratchet hook 36 away from the connecting plate, and the rising locking ratchet pressure shaft 38 is limited by the rising ratchet pressure shaft locking plate 314; both the rising ratchet pressure shaft locking plate 314 and the falling ratchet pressure shaft locking plate 315 are rotatably connected to the protective shell outside the drive sprocket assembly 3, preferably, the sprocket 35 is also fixedly connected to the chain tensioner. Mechanism 313, with sprocket 35, descending locking ratchet 33, and ascending locking ratchet 34, drives the cantilever unit 4 via the chain of transmission chain assembly 7. On the other side of welded body 31, an active handwheel 32, an active shaft cable fixing block 312, and an active shaft cable fixing handwheel 311 are installed. The shaft of the active handwheel 32 passes through the active shaft cable fixing block 312 and welded body 31 and is fixedly connected to the descending locking ratchet 33 and ascending locking ratchet 34. The active shaft cable fixing block 312 is installed above the active shaft cable fixing handwheel 311 to lock the shaft of the active handwheel 32. The active sprocket assembly 3 is the main drive unit of the machine. By cranking the active handwheel 32, the sprocket 35 is driven to rotate, pulling the chain of transmission chain assembly 7. The chain connects to the cantilever unit 4, thereby causing the cantilever unit 4 to move up and down.

[0026] The specific working principle is as follows: When the cantilever needs to be raised, press one end of the lifting locking ratchet shaft 38. The movable end of the lifting locking ratchet shaft 38 drives the end of the lifting locking ratchet hook 36 to descend, causing the hook of the lifting locking ratchet hook 36 to disengage from the lifting locking ratchet 34, i.e., the lifting locking ratchet 34 is not limited. Rotate the lifting ratchet shaft locking plate 314 so that the lifting ratchet shaft locking plate 314 limits the lifting locking ratchet shaft 38, and the lowering locking ratchet shaft 39 remains stationary. At this time, it is possible to... By cranking the drive handwheel 32, the rotation of the drive handwheel 32 drives the upward locking ratchet 34 to rotate. The upward locking ratchet 34, in conjunction with the chain of the transmission chain assembly 7, drives the cantilever unit 4 to rise. Conversely, when the cantilever needs to be lowered, pressing down the lowering locking ratchet pressure shaft 39 causes the movable end of the lowering locking ratchet pressure shaft 39 to drive the end of the lowering locking ratchet hook 37 to descend, causing the hook of the lowering locking ratchet hook 37 to disengage from the lowering locking ratchet 33, i.e., preventing the lowering locking ratchet 33 from being engaged. 3. Limiting: Rotating the lowering ratchet pressure shaft locking plate 315 locks the lowering locking ratchet pressure shaft 39. Rotating the rising ratchet pressure shaft locking plate 314 causes the movable end of the rising locking ratchet pressure shaft 38 to return to its initial position under the elastic force of the pressure spring. This, in turn, causes the end of the rising locking ratchet hook 36 to rise, fixing the hook of the rising locking ratchet hook 36 to the rising locking ratchet 34. At this time, cranking the drive handwheel 32 causes the lowering locking ratchet 33 to rotate. The lowering locking ratchet 33, in conjunction with the chain of the transmission chain assembly 7, drives the cantilever unit 4 to descend. After the cantilever unit 4 is driven to the designated position, the rising ratchet pressure shaft locking plate 314 and the lowering ratchet pressure shaft locking plate 315 are both opened. At this time, the lowering locking ratchet 33 and the rising locking ratchet 34 are locked. Then, the active rotating shaft cable fixing handwheel 311 is tightened, which drives the active rotating shaft cable fixing block 311 to lock the rotating shaft of the active handwheel 32, so that the active handwheel 32 cannot rotate.

[0027] The cantilever unit 4 includes a body 41, a guide rail 42, a locking handle 43, a sliding seat 44, a connecting shaft 45, a combined bearing 46, and a rotating pressure head 47. The guide rail 42 is mounted on top of the body 41, and a sliding seat 44 that can reciprocate along the guide rail 42 is located on top of the guide rail 42. A locking handle 43 for limiting the position is located on one side of the sliding seat 44. The cantilever assembly 4 can be manually adjusted for the pressure point position via a linear slide rail 5. A combined bearing is installed at the pressure head to achieve synchronous rotation with the material after it is pressed.

[0028] In one or more embodiments, the bottom of the body 41 is provided with a groove, and a connecting shaft 45 is installed below the sliding seat 44. After the connecting shaft 45 passes through the groove of the body 41, a rotating pressure head 47 is installed through a combined bearing 46.

[0029] The working principle of cantilever unit 4 is as follows: By manually adjusting the sliding seat 44 to the required position, the movement of the sliding seat 44 will drive the rotating pressure head 47 to move. Locking the locking handle 43 will fix the sliding seat 44. The combined bearing 46 is a thrust ball needle bearing, which is subjected to axial pressure and radial rotational force to ensure that the rotating pressure head 47 can rotate synchronously with the material when pressing it.

[0030] The working principle of a mechanical cantilever lifting mechanism: According to the set height of the material, the height of the cantilever mechanism 4 is adjusted by the cooperation of the active sprocket assembly 3 and the transmission chain assembly 7. According to the position of the material, the position of the sliding seat 44 in the cantilever mechanism 4 is adjusted so that the material is located below the rotating pressure head 47 and the material is pressed. The material is located on the slide of the production line. When the material rotates with the slide, the rotating pressure head 47 can still press the material.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mechanical cantilever lifting mechanism, characterized in that: This includes the lifting column and the drive sprocket assembly, cantilever assembly, linear guide rail, driven sprocket assembly, and drive chain assembly mounted on top of it. The drive sprocket assembly and the transmission chain assembly work together to drive the cantilever assembly to move up and down; The cantilever assembly is used to hold down the material and rotate synchronously with it. The linear guide rail serves to guide the cantilever assembly; It also includes a counterweight assembly, which is used to balance the lifting and lowering of the cantilever assembly; The drive sprocket assembly includes a welded body and a descending locking ratchet, a rising locking ratchet, and a sprocket mounted on one side. The descending locking ratchet and the rising locking ratchet are arranged side by side. The descending locking ratchet is controlled to rotate by a descending locking ratchet hook, and the rising locking ratchet is controlled to rotate by a rising locking ratchet hook. The sprocket, the descending locking ratchet, and the rising locking ratchet work together through the chain of the transmission chain assembly to drive the cantilever unit. An active handwheel is mounted on the other side of the welded body, and the active handwheel is locked by a locking unit. The locking unit includes an active shaft cable fixing block and an active shaft cable fixing handwheel. The shaft of the active handwheel passes through the active shaft cable fixing block and the welded body and is fixedly connected to the descending locking ratchet and the ascending locking ratchet. The active shaft cable fixing block is installed above the active shaft cable fixing handwheel to lock the shaft of the active handwheel. The cantilever unit includes a main body and a guide rail mounted on it. A sliding seat that can reciprocate along the guide rail is provided on the upper part of the guide rail, and a locking handle for limiting the position is provided on one side of the sliding seat. The bottom of the main body is provided with a groove, and a connecting shaft is installed below the sliding seat. After the connecting shaft passes through the groove of the main body, the rotating pressure head is installed through the combined bearing.

2. The mechanical cantilever lifting mechanism according to claim 1, characterized in that: The lowering locking ratchet is located on one side of the lowering locking ratchet hook. The lowering locking ratchet hook is rotatably connected to the mounting plate below it to control whether the lowering locking ratchet rotates.

3. The mechanical cantilever lifting mechanism according to claim 1, characterized in that: A pressure spring is also installed between the lowering locking ratchet hook and the mounting plate. A lowering locking ratchet pressure shaft is also installed on the side of the lowering locking ratchet hook away from the mounting plate. The lowering locking ratchet pressure shaft is limited by the lowering ratchet pressure shaft locking plate.

4. The mechanical cantilever lifting mechanism according to claim 3, characterized in that: The descending ratchet pressure shaft locking plate is rotatably connected to the protective shell outside the drive sprocket assembly.

5. A mechanical cantilever lifting mechanism according to claim 1, characterized in that: The sprocket is also fixedly connected to the chain tensioning mechanism.

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