An automatic lifting telescopic fork

Abstract

The utility model relates to a kind of automatic lifting telescopic fork, it is related to fork technical field, including hoisting mechanism, telescopic mechanism is fixed on hoisting mechanism top surface, and telescopic mechanism end is fixed with supporting mechanism.In the telescopic to certain distance after three telescopic frame and two telescopic frame, the abutment rod on three telescopic frame and two telescopic frame will abut and drive telescopic insert frame, and will drive the support frame on telescopic insert frame along with insert track slide, when telescopic insert frame in support frame and insert track abut, the abutment rod and telescopic insert frame abutment force increase will drive telescopic insert frame to move up and compress spring, telescopic insert frame end and abutment rod separate, spring drives telescopic insert frame to be inserted in insert track, and support frame can extend to support three telescopic frame and two telescopic frame, reduce the metal fatigue generated by three telescopic frame and two telescopic frame, increase the service life of three telescopic frame and two telescopic frame, to increase the service life of telescopic fork.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, specifically to an automatic lifting and telescopic forklift. Background Technology

[0002] The fork extension mechanism is a key actuator of the stacker crane in an automated storage and retrieval system (AS / RS), employing a three-level nested mechanical structure design. This mechanism achieves bidirectional cargo storage and retrieval through differential extension, and is installed at the front of the loading platform, forming a complete warehousing equipment system together with the lifting mechanism and the running mechanism.

[0003] The telescopic fork structure consists of three components: fixed forks, intermediate forks, and main forks. Long-term use can easily lead to mechanical wear, requiring regular maintenance to ensure operational stability.

[0004] In the use of existing telescopic forks, the three-stage components rely mainly on their own material strength to support the goods. However, with prolonged use, as the extension length of the three-stage components gradually increases, the end pressure of the three-stage components will increase. This will greatly increase the pressure at both ends of the three-stage components. When the pressure at both ends of the three-stage components is too high, it will cause increased metal fatigue of the telescopic fork, which will shorten the service life of the telescopic fork and greatly reduce the service life of the three-stage components of the telescopic fork. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing an automatic lifting and telescopic fork.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a lifting mechanism, wherein a telescopic mechanism is installed and fixed on the top surface of the lifting mechanism, and a support mechanism is installed and fixed at the end of the telescopic mechanism; The support mechanism includes a fixed frame that is fixed to the lifting mechanism. A secondary telescopic frame is slidably connected inside the fixed frame. A tertiary telescopic frame is slidably connected to the secondary telescopic frame. Multiple plug-in rails are fixed to the top surfaces of the fixed frame and the secondary telescopic frame by bolts. A support frame is slidably connected to the plug-in rails. A telescopic plug-in frame is slidably connected inside the support frame. Two springs are fixed to the top surface of the telescopic plug-in frame. The telescopic insert frame has two rotating rollers rotatably connected to its end, and the two rotating rollers are slidably fitted with abutment rods.

[0007] The beneficial effects of this utility model are as follows: After the three-stage telescopic frame and the two-stage telescopic frame extend to a certain distance, the abutting rods on the three-stage telescopic frame and the two-stage telescopic frame will abut against and drive the telescopic insert frame, and will drive the support frame on the telescopic insert frame to slide out along the insertion track. When the telescopic insert frame inside the support frame abuts against the insertion track, the abutting force between the abutting rod and the telescopic insert frame increases, which will drive the telescopic insert frame to move upward to compress the spring. In this way, the support frame will continue to move a distance, and the end of the telescopic insert frame will separate from the abutting rod. In this way, the spring will drive the telescopic insert frame to insert into the insertion track, and the support frame can extend to support the three-stage telescopic frame and the two-stage telescopic frame, reduce the metal fatigue generated by the three-stage telescopic frame and the two-stage telescopic frame, increase the service life of the three-stage telescopic frame and the two-stage telescopic frame, and thus increase the service life of the telescopic forks.

[0008] Furthermore, the upper end of the abutment rod is welded and fixed to the secondary telescopic frame and the tertiary telescopic frame, the upper end of the spring is connected and fixed to the inner wall of the support frame, the end of the support frame has a triangular structure, the lower end of the abutment rod has a trapezoidal structure, and the telescopic insertion frame is inserted and matched with the insertion track. The triangular structure at the end of the support frame can make the support more stable, and the trapezoidal structure at the lower end of the abutment rod can drive the telescopic insertion frame to move more smoothly.

[0009] Furthermore, the top surface of the support frame slides in conjunction with the secondary and tertiary telescopic frames via a sliding roller, which can reduce the friction between the support frame and the secondary and tertiary telescopic frames.

[0010] Furthermore, the telescopic mechanism includes multiple primary gears rotatably connected to the secondary telescopic frame via bearing seats. Two primary gears are meshed with racks, and two primary gears are fixedly connected with synchronous teeth. A synchronous belt meshes with the synchronous teeth. A secondary gear meshes with the lower synchronous teeth. A control motor is mounted on the lower primary gear. The control motor is controlled by a PLC. The PLC drives the control motor to drive the primary gear to mesh with the racks on the tertiary telescopic frame, thereby driving the tertiary telescopic frame to extend. Simultaneously, the secondary gear on the primary gear drives the synchronous teeth, which in turn drive the lower synchronous teeth to rotate via the synchronous belt. The lower synchronous teeth then drive the lower primary gear to rotate in the opposite direction, thus driving the middle secondary telescopic frame to extend synchronously. This completes the synchronous extension and retraction of the secondary and tertiary telescopic frames.

[0011] Furthermore, the secondary gear is connected to the control motor through the primary gear, and the rack is connected and fixed to the fixed frame and the tertiary telescopic frame. The secondary gear can drive the lower primary gear and the upper primary gear to rotate synchronously in opposite directions through the synchronous teeth and synchronous belt.

[0012] Furthermore, the lower synchronous tooth is extended in length and simultaneously engages with two synchronous belts. The lower synchronous tooth is rotatably connected to the fixed frame. The extended length of the lower synchronous tooth and simultaneous engagement with two synchronous belts can synchronously drive the synchronous teeth at both ends. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the fixed frame of this utility model; Figure 3 This is a cross-sectional view of the support frame of this utility model; Figure 4 This is a structural diagram of the telescopic insert frame of this utility model; Figure 5 This is a structural diagram of the rack and pinion of this utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Lifting mechanism; 2. Telescopic mechanism; 21. Primary gear; 22. Rack; 23. Synchronous gear; 24. Synchronous belt; 25. Secondary gear; 26. Control motor; 3. Support mechanism; 31. Fixed frame; 32. Secondary telescopic frame; 33. Tertiary telescopic frame; 34. Insertion rail; 35. Support frame; 351. Sliding roller; 36. Telescopic insertion frame; 37. Spring; 38. Rotating roller; 39. Abutment rod. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] In the description of this application, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0017] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0018] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0019] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0020] Example 1 Figure 1 A structural diagram of an automatic lifting and telescopic fork provided for an embodiment of this utility model, as shown below. Figure 1 , Figure 2 and Figure 3The lifting mechanism 1 shown has a telescopic mechanism 2 fixedly mounted on its top surface, and a support mechanism 3 fixedly mounted on the end of the telescopic mechanism 2. The support mechanism 3 includes a fixed frame 31 fixedly mounted to the lifting mechanism 1. A secondary telescopic frame 32 is slidably connected inside the fixed frame 31, and a tertiary telescopic frame 33 is slidably connected to the secondary telescopic frame 32. Multiple plug-in rails 34 are fixedly connected to the top surfaces of both the fixed frame 31 and the secondary telescopic frame 32 by bolts. A support frame 35 is slidably connected to the plug-in rails 34. A telescopic plug-in frame 36 is slidably connected inside the support frame 35. Two springs 37 are fixedly connected to the top surface of the telescopic plug-in frame 36. Two rotating rollers 38 are rotatably connected to the end of the telescopic plug-in frame 36, and abutment rods 39 are slidably engaged on the two rotating rollers 38.

[0021] Figure 3 This is a cross-sectional view of the support frame of this utility model. Figure 3 As shown, the upper end of the abutment rod 39 is welded and fixed to the secondary telescopic frame 32 and the tertiary telescopic frame 33. The upper end of the spring 37 is connected and fixed to the inner wall of the support frame 35. The end of the support frame 35 has a triangular structure, and the lower end of the abutment rod 39 has a trapezoidal structure. The telescopic insertion frame 36 is inserted and matched with the insertion rail 34. The triangular structure at the end of the support frame 35 can make the support more stable, and the trapezoidal structure at the lower end of the abutment rod 39 can drive the telescopic insertion frame 36 to move more smoothly.

[0022] Figure 4 This is a structural diagram of the telescopic insert frame of this utility model. Figure 4 As shown, the top surface of the support frame 35 is slidably engaged with the secondary telescopic frame 32 and the tertiary telescopic frame 33 via the sliding roller 351. The sliding roller 351 can reduce the friction between the support frame 35 and the secondary telescopic frame 32 and the tertiary telescopic frame 33.

[0023] Figure 5 This is a structural diagram of the rack of this utility model. Figure 5 As shown, the telescopic mechanism 2 includes multiple primary gears 21 rotatably connected to the secondary telescopic frame 32 via bearing seats. Two primary gears 21 are meshed with racks 22, and two primary gears 21 are fixedly connected with synchronous gears 23. Synchronous belts 24 are meshed with synchronous gears 23. A secondary gear 25 is meshed with the lower synchronous gear 23. A control motor 26 is mounted and fixed on the lower primary gear 21. The control motor 26 is controlled by a PLC. The PLC drives the control motor 26 to drive the primary gear 21 to mesh with the racks 22 on the tertiary telescopic frame 33, thereby driving the tertiary telescopic frame 33 to extend. At the same time, the secondary gear 25 on the primary gear 21 drives the synchronous gears 23, thereby driving the lower synchronous gears 23 to rotate via the synchronous belt 24. In this way, the lower synchronous gears 23 drive the lower primary gear 21 to rotate in the opposite direction, thus driving the middle secondary telescopic frame 32 to extend synchronously. This completes the synchronous extension and retraction of the secondary telescopic frame 32 and the tertiary telescopic frame 33.

[0024] The secondary gear 25 is connected to the control motor 26 through the primary gear 21. The rack 22 is connected and fixed to the fixed frame 31 and the tertiary telescopic frame 33. The secondary gear 25 can drive the lower primary gear 21 to rotate synchronously in the opposite direction to the upper primary gear 21 through the synchronous gear 23 and the synchronous belt 24.

[0025] The lower synchronous tooth 23 is extended in length and simultaneously engages with two synchronous belts 24. The lower synchronous tooth 23 is rotatably connected to the fixed frame 31. The extended length of the lower synchronous tooth 23 and simultaneous engagement with two synchronous belts 24 can synchronously drive the synchronous teeth 23 at both ends.

[0026] Working principle: The PLC drives the motor 26 to drive the primary gear 21, which in turn drives the rack 22 on the tertiary telescopic frame 33 to extend. Simultaneously, the secondary gear 25 on the primary gear 21 drives the synchronous gear 23, which in turn drives the lower synchronous gear 23 to rotate via the synchronous belt 24. This lower synchronous gear 23 then drives the lower primary gear 21 to rotate in the opposite direction, thus driving the secondary telescopic frame 32 in the middle to extend synchronously. This completes the synchronous extension and retraction of the secondary and tertiary telescopic frames 32 and 33. After the secondary and tertiary telescopic frames 33 and 32 have extended to a certain distance, the abutment rods 39 on the secondary and tertiary telescopic frames 33 abut against and drive the telescopic insert frame 36, which in turn drives... The support frame 35 on the telescopic insert frame 36 slides out along the insertion rail 34. When the telescopic insert frame 36 inside the support frame 35 abuts against the insertion rail 34, the increased contact force between the abutting rod 39 and the telescopic insert frame 36 will cause the telescopic insert frame 36 to move upward to compress the spring 37. In this way, the support frame 35 will continue to move a distance, and the end of the telescopic insert frame 36 will separate from the abutting rod 39. Then, the spring 37 will drive the telescopic insert frame 36 to insert into the insertion rail 34. In this way, the support frame 35 can extend to support the third-stage telescopic frame 33 and the second-stage telescopic frame 32, reduce the metal fatigue generated by the third-stage telescopic frame 33 and the second-stage telescopic frame 32, increase the service life of the third-stage telescopic frame 33 and the second-stage telescopic frame 32, and thus increase the service life of the telescopic forks.

[0027] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. An automatic lifting and telescopic fork, characterized in that, include: A lifting mechanism (1) is provided, and a telescopic mechanism (2) is fixedly installed on the top surface of the lifting mechanism (1). A support mechanism (3) is fixedly installed at the end of the telescopic mechanism (2). The support mechanism (3) includes a fixed frame (31) that is fixed to the lifting mechanism (1). A secondary telescopic frame (32) is slidably connected inside the fixed frame (31). A tertiary telescopic frame (33) is slidably connected on the secondary telescopic frame (32). Multiple plug-in rails (34) are fixed to the top surfaces of the fixed frame (31) and the secondary telescopic frame (32) by bolts. A support frame (35) is slidably connected on the plug-in rails (34). A telescopic plug-in frame (36) is slidably connected inside the support frame (35). Two springs (37) are fixed to the top surface of the telescopic plug-in frame (36). The telescopic insert frame (36) has two rotating rollers (38) rotatably connected to its end, and the two rotating rollers (38) are slidably fitted with abutment rods (39).

2. The automatic lifting and telescopic fork according to claim 1, characterized in that, The upper end of the abutment rod (39) is welded and fixed to the secondary telescopic frame (32) and the tertiary telescopic frame (33). The upper end of the spring (37) is connected and fixed to the inner wall of the support frame (35). The end of the support frame (35) is triangular. The lower end of the abutment rod (39) is trapezoidal. The telescopic insertion frame (36) is inserted and matched with the insertion track (34).

3. The automatic lifting and telescopic fork according to claim 1, characterized in that, The top surface of the support frame (35) slides in cooperation with the secondary telescopic frame (32) and the tertiary telescopic frame (33) via a sliding roller (351).

4. The automatic lifting and telescopic fork according to claim 1, characterized in that, The telescopic mechanism (2) includes multiple primary gears (21) rotatably connected to the secondary telescopic frame (32) via bearing seats, and racks (22) mesh on two of the primary gears (21).

5. The automatic lifting and telescopic fork according to claim 4, characterized in that, Synchronous teeth (23) are fixedly connected to the two primary gears (21), and a synchronous belt (24) is meshed on the synchronous teeth (23).

6. The automatic lifting and telescopic fork according to claim 5, characterized in that, A secondary gear (25) is meshed on one of the lower synchronizing teeth (23).

7. The automatic lifting and telescopic fork according to claim 6, characterized in that, A control motor (26) is mounted and fixed on the first-stage gear (21) located below.

8. The automatic lifting and telescopic fork according to claim 7, characterized in that, The secondary gear (25) is connected to the control motor (26) through the primary gear (21), and the rack (22) is connected and fixed to the fixed frame (31) and the tertiary telescopic frame (33).

9. The automatic lifting and telescopic fork according to claim 8, characterized in that, The lower synchronous tooth (23) is extended in length and simultaneously engages two synchronous belts (24).

10. The automatic lifting and telescopic fork according to claim 9, characterized in that, The synchronizing gear (23) located below is rotatably connected to the fixed frame (31).

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