Variable-pitch driving device for clamping pallet fork
By designing a variable distance drive device for clamping forks, the combination of variable distance motor, coupling and universal coupling is used to solve the problems of complex structure and redundant stroke of existing clamping forks, efficient and low-energy-consuming variable distance operation, and extend the motor service life.
Patent Information
- Application Number
- CN202421494152.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing clamp forks have complex variable distance structure, resulting in difficulty in maintenance, high failure rate, and redundant stroke problems, which increases energy consumption and operating costs, and affects the service life and safety hazards of the motor.
A variable distance drive device for clamping forks is designed, including a variable distance motor, coupling, universal coupling and clamping connector. Through the coordination of the rotary shaft and the pin shaft, the reciprocating movement of the variable distance guide plate is realized to ensure one-way rotation of the motor and avoid forward and reverse rotation operations.
The reciprocating and variable distance operation of small stroke variable-distance clamping forks is realized, ensuring one-way operation of the motor, reducing failure rate and energy consumption, extending the motor service life, and improving the continuity and efficiency of warehousing operations.
Smart Images
Figure CN222684212U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automated warehousing equipment, in particular to a variable-pitch driving device for clamping cargo forks. Background Art
[0002] The clamping fork is a light-load box-type material transfer tool. It plays an important role in the field of intelligent warehousing, especially in intensive box-type storage environments. The main function of this tool is to achieve reciprocating distance between the forks within a certain range of travel to meet the handling needs of materials of different sizes.
[0003] In order to achieve the adjustability of the spacing, the clamping fork usually adopts a variety of driving methods and a guide slider to drive the fork body to move. The mainstream variable pitch forms on the market mainly include the synchronous belt drive form connecting the two forks or the screw drive form directly connecting the two forks in parallel. However, these variable pitch forms have some obvious defects.
[0004] First, their structures are relatively complex, which not only increases manufacturing costs but also makes maintenance more difficult. At the same time, complex structures are also prone to increased failure rates, which affects the continuity and efficiency of warehousing operations. Secondly, since the variable pitch stroke under specified working conditions is generally small, conventional variable pitch forms often have the problem of stroke redundancy. This means that in most cases, the drive system needs to consume additional energy to complete unnecessary movements, thereby increasing energy consumption and operating costs. In addition, due to the reciprocating cycle of variable pitch operations, the motor needs to frequently perform forward and reverse operations. This not only has a serious impact on the service life of the motor, but may also cause safety hazards. Especially in high-speed and high-frequency operating environments, the risk of motor failure will increase significantly.
[0005] In summary, in order to solve the above problems, it is urgent to develop a variable pitch drive device for clamping forks. Utility Model Content
[0006] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a variable pitch drive device for a clamping fork, thereby realizing the reciprocating variable pitch operation of a small-stroke variable pitch clamping hook fork and ensuring unidirectional rotation of the motor without the need for changing direction and starting and stopping.
[0007] The technical solution adopted by the utility model is as follows: a variable pitch drive device for clamping forks, including a variable pitch motor, the output end of the variable pitch motor is connected to the variable pitch unit through a coupling; the structure of the variable pitch unit is: including a first variable pitch component and a second variable pitch component, a universal coupling is arranged between the first variable pitch component and the second variable pitch component, the contact end of the first variable pitch component and the universal coupling and the contact end of the second variable pitch component and the universal coupling are connected through a clamping connector; when the output end of the variable pitch motor rotates, it drives the first variable pitch component and the second variable pitch component to move toward or in the opposite direction, and changes the distance between the first variable pitch component and the second variable pitch component.
[0008] As a further improvement of the above technical solution:
[0009] Preferably, one end of the second pitch-changing assembly is connected to the pitch-changing motor via a coupling, and the other end of the second pitch-changing assembly is connected to a universal coupling; the other end of the universal coupling is connected to the first pitch-changing assembly.
[0010] Preferably, the first variable distance assembly and the second variable distance assembly are of the same structure and are arranged symmetrically at 180° in the horizontal direction.
[0011] Preferably, the structure of the first pitch changing assembly is: it includes a pitch changing guide plate, which is assembled on a rotating shaft; there is a pin at the bottom of the pitch changing guide plate extending downward in the vertical direction; a rotating groove is spirally arranged on the rotating shaft along the rotation direction; and the pin extends into the rotating groove.
[0012] Preferably, the top of the pin shaft is assembled in the hexagonal nut, and the other end surface of the hexagonal nut is fixed to the bottom surface of the variable pitch guide plate.
[0013] Preferably, a mounting seat is arranged around the rotating shaft at the bottom of the variable pitch guide plate, and a reserved hole is arranged on the mounting seat; the reserved hole is threadedly connected to a hexagonal head bolt for tightening and limiting.
[0014] Preferably, the end of the rotary shaft is connected to the clamping connector.
[0015] The beneficial effects of the utility model are as follows:
[0016] The utility model has a compact structure. When the integral rotary shaft rotates, the pin shaft in contact with the rotary groove on the rotary shaft can be pushed to move toward or away from each other, thereby realizing the reciprocating motion of the variable pitch guide plate. During the process, the variable pitch motor does not need to rotate forward or reverse. The relative arrangement of the rotary shaft ensures that the two variable pitch components can alternately move toward or away from each other when the motor runs in one direction.
[0017] The utility model also has the following advantages:
[0018] (1) The utility model can be adapted to different variable pitch working conditions by matching universal couplings of different lengths and sizes;
[0019] (2) The design of the slewing groove on the slewing shaft of the utility model cooperates with the pin shaft to drive the guide plate to move, which can fully ensure the stroke of the variable pitch operation, thereby avoiding the generation of large redundancy. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] Figure 2 It is an axonometric drawing of the present utility model.
[0022] Figure 3 It is a structural schematic diagram of the first variable pitch component of the utility model.
[0023] Figure 4 for Figure 3 main view.
[0024] Among them: 1. Universal coupling; 2. Pitch-changing motor; 3. First pitch-changing assembly; 4. Second pitch-changing assembly; 5. Clamping connector; 6. Coupling;
[0025] 301. Hexagon head bolt; 302. Hexagon nut; 303. Variable pitch guide plate; 304. Rotary shaft; 305. Rotary groove; 306. Pin shaft. DETAILED DESCRIPTION
[0026] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.
[0027] like Figure 1 to Figure 3 As shown, the variable pitch drive device for clamping forks of this embodiment includes a variable pitch motor 2, and the output end of the variable pitch motor 2 is connected to the variable pitch unit through a coupling 6; the structure of the variable pitch unit is: including a first variable pitch component 3 and a second variable pitch component 4, a universal coupling 1 is arranged between the first variable pitch component 3 and the second variable pitch component 4, and the contact end of the first variable pitch component 3 and the universal coupling 1 and the contact end of the second variable pitch component 4 and the universal coupling 1 are connected through a clamping connector 5; when the output end of the variable pitch motor 2 rotates, it drives the first variable pitch component 3 and the second variable pitch component 4 to move toward or in the opposite direction, and changes the distance between the first variable pitch component 3 and the second variable pitch component 4.
[0028] In this embodiment, one end of the second pitch-changing assembly 4 is connected to the pitch-changing motor 2 through the coupling 6 , and the other end of the second pitch-changing assembly 4 is connected to the universal coupling 1 ; the other end of the universal coupling 1 is connected to the first pitch-changing assembly 3 .
[0029] In this embodiment, the first variable pitch assembly 3 and the second variable pitch assembly 4 are of the same structure arranged 180° symmetrically in the horizontal direction; specifically, the first variable pitch assembly 3 and the second variable pitch assembly 4 are both fixed in the initial position by tightening and limiting the hexagonal head bolts 301.
[0030] In this embodiment, the structure of the first pitch changing assembly 3 is as follows: it includes a pitch changing guide plate 303, which is assembled on a rotating shaft 304; a pin shaft 306 is provided at the bottom of the pitch changing guide plate 303 in a vertical downward direction; a rotating groove 305 is spirally arranged on the rotating shaft 304 in the direction of rotation; and the pin shaft 306 extends into the rotating groove 305.
[0031] In this embodiment, the top of the pin shaft 306 is assembled in the hexagonal nut 302 , and the other end surface of the hexagonal nut 302 is fixed to the bottom surface of the variable pitch guide plate 303 .
[0032] In this embodiment, a mounting seat is arranged around the rotary shaft 304 at the bottom of the variable pitch guide plate 303, and a reserved hole is arranged on the mounting seat; the reserved hole is threadedly connected with a hexagonal head bolt 301 for tightening and limiting.
[0033] In this embodiment, the end of the rotary shaft 304 is connected to the clamping connector 5 .
[0034] The overall structure of the utility model is reasonable and the operation process is simple. The working process is as follows:
[0035] The first pitch-changing assembly 3 and the second pitch-changing assembly 4 are connected by two clamping connectors 5 and a universal coupling 1 to ensure that the first pitch-changing assembly 3 and the second pitch-changing assembly 4 rotate synchronously; the end of the second pitch-changing assembly 4 is connected to the pitch-changing motor 2 assembly through a coupling 6 to provide power for the entire pitch-changing drive device;
[0036] When the pitch changing operation is carried out, after loosening the hexagonal head bolt 301 tightening the side plane of the rotating shaft 304, the pitch changing motor 2 assembly provides rotational power, and the rotating shafts 304 at both ends rotate synchronously driven by the clamping connector 5 and the universal joint 1, and push the pin shaft 306 in contact with the rotating groove 305 on the rotating shaft 304 to move along the axial direction of the rotating shaft 304, and finally drive the pitch changing guide plate 303 to move to realize the pitch changing operation.
[0037] The utility model provides structurally identical rotary grooves 305 on the rotary shafts 304 at both ends and arranges them relatively. When the rotary shafts 304 rotate, the pins 306 in contact with the rotary grooves 305 on the rotary shafts 304 can be pushed to move toward or in the opposite direction, thereby realizing the reciprocating motion of the variable pitch guide plate 303. The utility model has low assembly difficulty and a wide range of applications.
[0038] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.
Claims
1. A variable pitch drive device for a clamping fork, characterized in that: It comprises a variable pitch motor (2), the output end of the variable pitch motor (2) being connected to the variable pitch unit via a coupling (6); The structure of the pitch changing unit is as follows: it comprises a first pitch changing component (3) and a second pitch changing component (4); a universal coupling (1) is arranged between the first pitch changing component (3) and the second pitch changing component (4); the contact ends of the first pitch changing component (3) and the universal coupling (1) and the contact ends of the second pitch changing component (4) and the universal coupling (1) are connected via a clamping connector (5); When the output end of the pitch-changing motor (2) rotates, it drives the first pitch-changing component (3) and the second pitch-changing component (4) to move toward or in the opposite direction, and changes the distance between the first pitch-changing component (3) and the second pitch-changing component (4).
2. The variable pitch drive device for a clamping fork according to claim 1, characterized in that: One end of the second pitch-changing component (4) is connected to the pitch-changing motor (2) via a coupling (6), and the other end of the second pitch-changing component (4) is connected to the universal coupling (1); The other end of the universal coupling (1) is connected to the first pitch-changing component (3).
3. The variable pitch drive device for a clamping fork according to claim 1, characterized in that: The first variable distance assembly (3) and the second variable distance assembly (4) are of the same structure and are arranged symmetrically at 180° in the horizontal direction.
4. The variable pitch drive device for a clamping fork according to claim 3, characterized in that: The structure of the first pitch-changing assembly (3) is as follows: it comprises a pitch-changing guide plate (303), wherein the pitch-changing guide plate (303) is assembled on a rotary shaft (304); A pin shaft (306) is arranged at the bottom of the variable pitch guide plate (303) downward in the vertical direction; The rotary shaft (304) is provided with a rotary groove (305) in a spiral shape along the rotation direction; The pin shaft (306) extends into the rotary groove (305).
5. The variable pitch drive device for a clamping fork according to claim 4, characterized in that: The top of the pin shaft (306) is assembled in the hexagonal nut (302), and the other end surface of the hexagonal nut (302) is fixed to the bottom surface of the variable pitch guide plate (303).
6. The variable pitch drive device for a clamping fork according to claim 4, characterized in that: A mounting seat is arranged at the bottom of the variable pitch guide plate (303) around the rotary shaft (304), and a reserved hole is arranged on the mounting seat; The reserved hole is threadedly connected to a hexagonal head bolt (301) for tightening and limiting.
7. The variable pitch driving device for a clamping fork according to claim 4, characterized in that: The end of the rotary shaft (304) is connected to the clamping connector (5).