New energy electric forklift high-strength lifting mechanism

Abstract

The utility model relates to the technical field of electric forklifts, in particular to a high-strength lifting mechanism of a new energy electric forklift, which comprises a gantry, a transmission case, a console, a lifting frame, a guide wheel roller, a lifting frame, a movable pulley, a chain, a lifting mechanism and an adjusting mechanism. Part of devices can offset the mass of part of cargoes through the balancing weight through the movable pulley block, power output of the lifting mechanism can be reduced conveniently, part of devices can adjust the balance weight pulled by the lifting frame according to the mass of the cargoes through the adjusting mechanism, and therefore part of devices can lift the cargoes with low energy consumption. And the stability and adjustability of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric forklifts, in particular to a high-strength lifting mechanism for a new energy electric forklift. Background Technique

[0002] New energy generally refers to renewable energy developed and utilized on the basis of new technologies. At present, new energy technologies generally convert exploitable renewable energy into electric energy for various equipment to operate. A new energy electric forklift refers to a forklift that operates with new energy power supply. Forklifts generally drive goods for handling through a lifting mechanism and are mostly used in places such as docks and warehouses.

[0003] The existing device mainly drives the fork to lift and lower through components such as hydraulic cylinders. Most of the existing technologies are similar to a fork lifting mechanism of a forklift. The structure with the patent number CN213537169U includes a support frame, a power component and a detection device. By setting a driving oil cylinder and a lifting wheel, the driving oil cylinder is used to drive the lifting wheel to move upward, and a chain is arranged on the lifting wheel to drive the fork frame to move upward, finally realizing the lifting of the fork. At the same time, with the cooperation of a wire rope encoder and a wire reel, the lifting height of the fork can be measured more intuitively, which is convenient for the driver's operation and judgment. However, there are still places where this device can be optimized.

[0004] The existing device mainly drives the fork to slide up and down directly through hydraulic optimization, making it difficult for some devices to sway and lift the goods through counterweights, resulting in the need to configure high-strength power mechanisms for some devices. At the same time, it is difficult for some devices to adjust the counterweight according to the mass of the goods, resulting in the difficulty of some devices in lifting heavier goods, reducing the working efficiency and practicability of the device. Therefore, in order to solve the above problems, a high-strength lifting mechanism for a new energy electric forklift is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-strength lifting mechanism for a new energy electric forklift, so as to solve the problem in the above background technique that the existing device in the existing technology mainly drives the fork to slide up and down directly through hydraulic optimization, making it difficult for some devices to sway and lift the goods through counterweights, resulting in the need to configure high-strength power mechanisms for some devices. At the same time, it is difficult for some devices to adjust the counterweight according to the mass of the goods, resulting in the difficulty of some devices in lifting heavier goods.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-strength lifting mechanism for a new energy electric forklift, including a gantry. A transmission box is fixedly connected to the top of the gantry. A control console is fixedly connected to the middle of the right side of the gantry. A lifting frame is inserted on the outer wall of the limiting rod inside the gantry. A guiding wheel roller is movably connected above the inner wall of the gantry. A lifting frame is arranged on the front side inside the gantry. Two movable pulleys are fixedly connected to the upper sides of the lifting frame. A chain is fixedly connected to the upper part of the inner wall of the gantry. The other end of the chain is fixedly connected to the two sides of the top of the lifting frame. The outer wall of the chain is sequentially meshed with the outer walls of the movable pulley and the guiding wheel roller;

[0007] An elevating mechanism is arranged inside the transmission box. The elevating mechanism includes a servo motor. The bottom of the servo motor is fixedly connected to the middle of the top of the transmission box. An adjusting mechanism is arranged below the lifting frame. The adjusting mechanism includes limiting side plates. The tops of the limiting side plates are fixedly connected to the two sides of the bottom of the lifting frame.

[0008] Preferably, a transmission shaft is fixedly connected to the middle of the bottom of the servo motor. The bottom end of the transmission shaft passes through the transmission box and is fixedly connected to a first bevel gear.

[0009] Preferably, a second bevel gear is meshed below the first bevel gear. A transmission worm is fixedly connected to the inner wall of the second bevel gear. The two ends of the transmission worm are movably connected to the inner wall of the transmission box.

[0010] Preferably, two transmission worm wheels are meshed on both sides of the outer wall of the transmission worm. A transmission screw is fixedly connected to the middle of the bottom of the transmission worm wheel. The bottom end of the transmission screw passes through the top of the gantry and is movably connected to the bottom of the inner wall of the gantry. A lifting screw sleeve is threadedly connected to the outer wall of the transmission screw. The outer wall of the lifting screw sleeve is fixedly connected to the middle parts of the two sides of the lifting frame.

[0011] Preferably, a counterweight plate is arranged between the limiting side plates. A pin is inserted on the outer side of the limiting side plates.

[0012] Preferably, clamping grooves corresponding to the pin are formed on both sides of the counterweight plate. Adjusting holes corresponding to the pin are formed on the limiting side plates.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model realizes the lifting of the lifting frame through structures such as a servo motor, a transmission shaft, a first bevel gear, a second bevel gear, a transmission worm, a transmission worm wheel, a transmission screw rod and a lifting screw sleeve in the lifting mechanism. By starting the servo motor through the console to drive the transmission shaft and the first bevel gear to rotate with limited position, the first bevel gear meshes to drive the second bevel gear and the transmission worm to rotate with limited position, the transmission worm meshes to drive the transmission worm wheel and the transmission screw rod to rotate with limited position, and the transmission screw rod drives the lifting screw sleeve, the lifting frame and the movable pulley to slide up and down, so that the end of the chain drives the lifting frame to slide up and down, realizing the lifting of the lifting frame. Some devices can offset part of the mass of the goods through counterweights, which is convenient for reducing the power output of the lifting mechanism and improving the stability and practicability of the device.

[0015] 2. The utility model realizes the counterweight adjustment of the lifting frame through structures such as a limit side plate, a counterweight plate, a pin, a card slot and an adjustment hole in the adjustment mechanism. By lowering the lifting frame to the bottom through the lifting mechanism, selecting the appropriate number of counterweight plates corresponding to the mass of the target goods, passing the pin through the adjustment hole and placing it in the card slot of the lowermost counterweight plate, the lifting frame can pull the corresponding number of counterweight plates, realizing the counterweight adjustment of the lifting frame, improving the adjustability and practicability of the device. Some devices can adjust the counterweight pulled by the lifting frame according to the mass of the goods, so that some devices can lift the goods with low energy consumption, improving the adjustability and practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front side view three-dimensional structure diagram of the utility model;

[0017] Figure 2 is the front view sectional three-dimensional structure diagram of the utility model;

[0018] Figure 3 is the partial front view sectional three-dimensional structure diagram of the transmission box and the lifting mechanism of the utility model;

[0019] Figure 4 is the partial side view sectional three-dimensional structure diagram of the lifting plate and the adjustment mechanism of the utility model.

[0020] In the figure: 11, gantry; 12, transmission box; 13, console; 14, lifting frame; 15, guide wheel roller; 16, lifting frame; 17, movable pulley; 18, chain; 2, lifting mechanism; 21, servo motor; 22, transmission shaft; 23, first bevel gear; 24, second bevel gear; 25, transmission worm; 26, transmission worm wheel; 27, transmission screw rod; 28, lifting screw sleeve; 3, adjustment mechanism; 31, limit side plate; 32, counterweight plate; 33, pin; 34, card slot; 35, adjustment hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present invention:

[0023] A high-strength lifting mechanism for a new energy electric forklift, including a gantry 11, a transmission box 12 is fixedly connected to the top of the gantry 11, a control console 13 is fixedly connected to the middle of the right side of the gantry 11, a lifting frame 14 is inserted on the outer wall of the limiting rod inside the gantry 11, a guiding wheel roller 15 is movably connected above the inner wall of the gantry 11, a lifting frame 16 is arranged on the front side inside the gantry 11, two sides above the lifting frame 16 are fixedly connected with movable pulleys 17, a chain 18 is fixedly connected above the inner wall of the gantry 11, the other end of the chain 18 is fixedly connected to both sides of the top of the lifting frame 14, and the outer wall of the chain 18 is sequentially meshed and connected to the outer walls of the movable pulley 17 and the guiding wheel roller 15. Through the design of the movable pulley 17 and the chain 18, it is realized that the movement path of the lifting frame 16 is half of that of the lifting frame 14, which is convenient for the placement of the traction mechanism;

[0024] An elevating mechanism 2 is arranged inside the transmission box 12. The elevating mechanism 2 includes a servo motor 21. The bottom of the servo motor 21 is fixedly connected to the middle of the top of the transmission box 12. A transmission shaft 22 is fixedly connected to the middle of the bottom of the servo motor 21. The bottom end of the transmission shaft 22 passes through the transmission box 12 and is fixedly connected with a first bevel gear 23. Through this design, it is realized that the servo motor 21 drives the first bevel gear 23 to rotate in a limited way. A second bevel gear 24 is meshed below the first bevel gear 23. A transmission worm 25 is fixedly connected to the inner wall of the second bevel gear 24. Both ends of the transmission worm 25 are movably connected to the inner wall of the transmission box 12. Through this design, it is realized that the second bevel gear 24 drives the transmission worm 25 to rotate in a limited way. Both sides of the outer wall of the transmission worm 25 are meshed with a transmission worm gear 26. A transmission screw 27 is fixedly connected to the middle of the bottom of the transmission worm gear 26. The bottom end of the transmission screw 27 passes through the top of the gantry 11 and is movably connected to the bottom of the inner wall of the gantry 11. A lifting screw sleeve 28 is threadedly connected to the outer wall of the transmission screw 27. The outer wall of the lifting screw sleeve 28 is fixedly connected to the middle of both sides of the lifting frame 16. Through this design, it is realized that the lifting screw sleeve 28 drives the lifting frame 16 to slide up and down.

[0025] Below the lifting frame 16 is provided with an adjusting mechanism 3. The adjusting mechanism 3 includes limit side plates 31. The tops of the limit side plates 31 are fixedly connected to both sides of the bottom of the lifting frame 16. Between the limit side plates 31 is provided a counterweight plate 32. A latch 33 is inserted outside the limit side plates 31. Through this design, the counterweight plate 32 is limited at the bottom of the lifting frame 16. Card slots 34 corresponding to the latch 33 are opened on both sides of the counterweight plate 32, and adjustment holes 35 corresponding to the latch 33 are opened on the limit side plates 31. Through this design, the lifting frame 16 can pull the corresponding number of counterweight plates 32 according to the mass of the lifted goods.

[0026] Working principle: When it is necessary to lift or lower the lifting frame 14, first start the servo motor 21 through the control console 13. The servo motor 21 drives the transmission shaft 22 to rotate in a limited way. The transmission shaft 22 drives the first bevel gear 23 to rotate synchronously. The first bevel gear 23 meshes with and drives the second bevel gear 24 to rotate. The second bevel gear 24 drives the transmission worm 25 to rotate in a limited way. The transmission worm 25 meshes with and drives the transmission worm gear 26 to rotate. The transmission worm gear 26 drives the transmission screw 27 to rotate in a limited way. The transmission screw 27 drives the lifting nut 28 to slide up and down. The lifting nut 28 drives the lifting frame 16 and the movable pulley 17 to slide synchronously, so that the end of the chain 18 drives the lifting frame 14 to slide up and down, realizing the lifting and lowering operation of the lifting frame 14.

[0027] When it is necessary to adjust the counterweight of the lifting frame 16, first lower the lifting frame 16 to the bottom through the lifting mechanism 2. Select the appropriate number of counterweight plates 32 corresponding to the mass of the target goods. Pass the latch 33 through the adjustment hole 35 and place it in the card slot 34 of the lowermost counterweight plate 32, so that the lifting frame 16 can pull the corresponding number of counterweight plates 32, realizing the counterweight adjustment operation of the lifting frame 16, and the operation ends here.

[0028] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention according to the instructions of the drawings and the above; however, any slight changes, modifications and evolutions made by those skilled in the art within the scope of the technical solution of the present invention using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A high-strength lifting mechanism for a new energy electric forklift, comprising a door frame (11), characterized in that: A transmission box (12) is fixedly connected to the top of the gantry (11), a control console (13) is fixedly connected to the middle of the right side of the gantry (11), a lifting frame (14) is inserted on the outer wall of the internal limit rod of the gantry (11), a guide roller (15) is movably connected to the upper part of the inner wall of the gantry (11), a lifting frame (16) is provided on the inner front side of the gantry (11), movable pulleys (17) are fixedly connected to the upper two sides of the lifting frame (16), a chain (18) is fixedly connected to the upper part of the inner wall of the gantry (11), the other end of the chain (18) is fixedly connected to the upper two sides of the lifting frame (14), and the outer wall of the chain (18) is meshedly connected to the outer walls of the movable pulley (17) and the guide roller (15) in sequence; A lifting mechanism (2) is provided inside the transmission box (12), the lifting mechanism (2) comprising a servo motor (21), the bottom of the servo motor (21) being fixedly connected to the middle of the top of the transmission box (12), an adjustment mechanism (3) is provided below the lifting frame (16), the adjustment mechanism (3) comprising a limiting side plate (31), the top of the limiting side plate (31) being fixedly connected to both sides of the bottom of the lifting frame (16).

2. According to claim 1, a high-strength lifting mechanism for a new energy electric forklift is characterized in that: A transmission shaft (22) is fixedly connected to the middle of the bottom of the servo motor (21), and the bottom end of the transmission shaft (22) passes through the transmission box (12) and is fixedly connected to a first bevel gear (23).

3. A high-strength lifting mechanism for a new energy electric forklift according to claim 2, characterized in that: A second bevel gear (24) is meshingly connected below the first bevel gear (23), a transmission worm (25) is fixedly connected to the inner wall of the second bevel gear (24), and two ends of the transmission worm (25) are movably connected to the inner wall of the transmission box (12).

4. A high-strength lifting mechanism for a new energy electric forklift according to claim 3, characterized in that: The outer walls of the transmission worm (25) are meshedly connected with transmission worm wheels (26), the middle of the bottom of the transmission worm wheel (26) is fixedly connected with a transmission screw (27), the bottom end of the transmission screw (27) passes through the top of the door frame (11) and is movably connected to the bottom of the inner wall of the door frame (11), the outer wall of the transmission screw (27) is threadedly connected with a lifting screw sleeve (28), and the outer wall of the lifting screw sleeve (28) is fixedly connected to the middle of both sides of the lifting frame (16).

5. The high-strength lifting mechanism for a new energy electric forklift according to claim 1 is characterized in that: A counterweight plate (32) is provided between the position-limiting side plates (31), and a latch (33) is inserted into the outer side of the position-limiting side plates (31).

6. A high-strength lifting mechanism for a new energy electric forklift according to claim 5, characterized in that: The counterweight plate (32) has slots (34) corresponding to the latch pin (33) on both sides, and the limiting side plate (31) has an adjustment hole (35) corresponding to the latch pin (33).

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