Efficient energy-saving forklift

Abstract

The invention relates to the technical field of forklift equipment, and discloses an efficient energy-saving forklift which comprises a frame, a stand column is installed on the frame, a fork bucket is slidably connected to the stand column, a lifting mechanism is arranged on the stand column and used for controlling self-locking type ascending and descending of the fork bucket, a control cabinet is arranged in the frame, and the control cabinet is used for controlling the fork bucket to ascend and descend in a self-locking mode. And a storage battery is arranged in the control cabinet. According to the efficient and energy-saving forklift, through the arranged lifting mechanism, an oil cylinder type structure in a traditional mode is converted into a worm and a worm gear which are of a motor rotation type, and by means of the connection driving mode of the worm and the worm gear, firstly, the lifted height can be self-locked, and power or energy consumption does not need to be provided for controlling the supporting force of the oil cylinder after being pressed; and the transportation stability of lifted goods can be kept while energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of forklift equipment, in particular to a high-efficiency energy-saving forklift. Background Art

[0002] A forklift is an industrial handling vehicle, which refers to various wheeled handling vehicles for loading, unloading, stacking and short-distance transportation of palletized goods. Industrial handling vehicles are widely used in ports, stations, airports, freight yards, factory workshops, warehouses, circulation centers and distribution centers, etc., and can enter cabins, carriages and containers to load, unload and transport palletized goods. Forklifts are indispensable equipment for pallet transportation and container transportation. Currently, forklifts are divided into fuel-powered and electric energy-saving types.

[0003] At present, when traditional forklifts are in operation, their lifting mechanisms generally use oil cylinders for lifting after picking up the goods to achieve transportation. The size of the oil cylinder directly determines the upper limit of the weight of the object that the forklift can pick up. However, when forklifts are currently transferring materials, they use electric or hydraulic methods to lift and transfer materials, which requires excessive energy consumption to keep the materials from sliding on the fork bucket. Because the forklift is in the driving stage when transferring, when there is material on the fork bucket during driving, it is necessary to ensure that its height does not slide and hit the ground, so a certain amount of energy consumption needs to be provided to maintain its constant height. In addition, for the traditional lifting mechanism, the hydraulic cylinder has a large pressure on the cylinder body under long-term pressure, which is prone to oil leakage, as well as unstable lifting and unstable height maintenance. Therefore, an efficient and energy-saving forklift is proposed to solve the above-mentioned problems. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a high-efficiency energy-saving forklift, which solves the problems raised in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an energy-efficient forklift, comprising a frame, a column mounted on the frame, a fork bucket slidably connected to the column, a lifting mechanism provided on the column, the lifting mechanism being used to control the self-locking rise and fall of the fork bucket, a control cabinet provided inside the frame, a battery provided inside the control cabinet; the lifting mechanism comprising a driving device and a lifting device, the driving device driving the lifting device to perform secondary extension and retraction, utilizing the lifting of the fork bucket to achieve material lifting operations, and the driving device being electrically connected to the battery.

[0008] Preferably, the driving device includes a driving motor, which is electrically connected to a battery through a control component, and is mounted on a column. An output end of the driving motor is connected to a driving rod, and a worm sleeve is fixedly connected to the driving rod. Two worm wheels are meshed on the worm sleeve, and the worm wheel is connected to a lifting device.

[0009] Preferably, the lifting device includes a toothed plate, one side of which is meshed with the worm gear, the top of which is fixedly connected to a lifting plate, one side of which is connected to a chain via a connecting plate, and one end of the chain is connected to the fork bucket.

[0010] Preferably, the chain is rotatably connected to a sprocket, and the sprocket is rotatably connected to an upper frame via an axle rod, a positioning rod is fixedly connected to the upper frame, the bottom of the positioning rod is movably connected to the inside of a driving rod, a spiral groove is provided on the positioning rod, a sliding pin is slidably connected to the spiral groove, one end of the sliding pin is fixedly connected to a rotating sleeve, the rotating sleeve is rotatably connected to a lifting plate, the bottom of the rotating sleeve is connected to an intermediate gear, and the intermediate gear is slidably connected to the positioning rod.

[0011] Preferably, the surface of the intermediate gear is meshed with a mating gear, the interior of the mating gear is fixedly connected with an internal thread sleeve, the internal thread of the internal thread sleeve is connected with a lifting screw, one end of the lifting screw is connected to the upper frame, the surface of the lifting screw is slidably connected with a fixing plate, and the fixing plate is fixed on the column.

[0012] Preferably, a guide rod is slidably connected inside the tooth plate, and the guide rod is fixed inside the column. A sleeve is also provided on the column, and the two worm gears are rotatably connected to the sleeve through a shaft.

[0013] Preferably, an oil bottle is inserted into the sleeve, one end of the oil bottle abuts against the upper surface of the worm sleeve, the top of the worm sleeve is provided with an oil inlet, the surface of the worm sleeve is provided with a plurality of oil flow ports, and the oil flow ports are connected to the oil inlet.

[0014] Preferably, a seat trigger assembly is also included, which includes a seat, a plurality of vertical rods are connected to the bottom of the seat, the vertical rods are slidably connected to the control cabinet, a large spring is sleeved on the surface of the vertical rod, the top of the large spring is connected to the seat, and the bottom of the large spring is connected to the control cabinet.

[0015] Preferably, a pressure rod is connected to the bottom of the seat, a trigger rod is provided below the pressure rod, the trigger rod is slidably connected to the control cabinet, a small spring is sleeved on the trigger rod, one end of the small spring is connected to the control cabinet, and the trigger rod is electrically connected to the ignition button inside the frame through a wire.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a high-efficiency and energy-saving forklift, which has the following beneficial effects:

[0018] 1. This high-efficiency and energy-saving forklift converts the traditional oil cylinder structure into a motor-rotated worm and worm wheel through the setting of the lifting mechanism. The connection drive mode of the worm and worm wheel can firstly self-lock the height after lifting, and there is no need to provide electricity or energy consumption to control the supporting force of the compressed oil cylinder, so as to save energy consumption and maintain the transportation stability of the lifted goods.

[0019] 2. This high-efficiency and energy-saving forklift converts the rotational force of the motor into a two-stage retractable height structure through the provided lifting device, which can drive the forklift bucket to rise to a higher height to adapt to forklift operations at different heights.

[0020] 3. This high-efficiency energy-saving forklift has a trigger rod. The ignition key of the forklift can only be started when the operator sits on the seat. After the operator gets off the forklift, the trigger key is separated from the pressure rod, and the entire forklift will automatically shut down. This avoids safety problems caused by malfunction of the touch rod after the operator gets off the forklift, saves a certain amount of energy for the forklift, and achieves energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency energy-saving forklift proposed by the present invention;

[0022] Figure 2 A schematic diagram of the connection structure of a lifting mechanism and a frame of a high-efficiency energy-saving forklift proposed by the present invention;

[0023] Figure 3 A schematic diagram of the connection structure between a column and a sheath of a high-efficiency energy-saving forklift proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the lifting mechanism structure of a high-efficiency energy-saving forklift proposed by the present invention;

[0025] Figure 5 A schematic diagram of a positioning rod connection structure of a high-efficiency energy-saving forklift proposed by the present invention;

[0026] Figure 6 A schematic diagram of the connection structure of an intermediate gear and a matching gear of a high-efficiency energy-saving forklift proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the oil bottle connection structure of a high-efficiency energy-saving forklift proposed by the present invention;

[0028] Figure 8This is a schematic diagram of a seat trigger assembly of a high-efficiency and energy-saving forklift proposed by the present invention.

[0029] In the figure: 1, frame; 2, lifting mechanism; 201, driving motor; 202, driving rod; 203, worm sleeve; 204, worm wheel; 205, tooth plate; 206, chain; 207, sprocket; 208, guide rod; 209, upper frame; 210, lifting plate; 211, connecting plate; 212, intermediate gear; 213, fixing plate; 214, spiral groove; 215, rotating sleeve; 216, matching gear; 217, inner thread sleeve; 218, lifting screw; 219, positioning rod; 220, sliding pin; 221, oil flow port; 222, oil bottle; 223, sheath; 224, oil inlet; 3, seat trigger assembly; 301, seat; 302, vertical pole; 303, pressure rod; 304, trigger rod; 305, small spring; 306, large spring; 4, fork bucket; 5, control cabinet; 6, column. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 8 A high-efficiency and energy-saving forklift includes a frame 1, a column 6 is mounted on the frame 1, a fork bucket 4 is slidably connected to the column 6, a lifting mechanism 2 is arranged on the column 6, and the lifting mechanism 2 is used to control the self-locking rise and fall of the fork bucket 4. A control cabinet 5 is arranged inside the frame 1, and a battery is arranged inside the control cabinet 5. The lifting mechanism 2 includes a driving device and a lifting device, the driving device drives the lifting device to perform secondary extension and retraction, and the lifting of the fork bucket 4 is used to realize the lifting of materials, and the driving device is electrically connected to the battery.

[0032] In this embodiment, the driving device includes a driving motor 201, which is electrically connected to a battery through a control member, and is mounted on a column 6. The output end of the driving motor 201 is connected to a driving rod 202, and a worm sleeve 203 is fixedly connected to the driving rod 202. Two worm wheels 204 are meshed on the worm sleeve 203, and the worm wheels 204 are connected to the lifting device. Further, the lifting device includes a toothed plate 205, one side of the toothed plate 205 is meshed with the worm wheel 204, and the top of the toothed plate 205 is fixedly connected to a lifting plate 210, and one side of the lifting plate 210 is connected to a chain 206 through a connecting plate 211, and one end of the chain 206 is connected to the fork bucket 4. By controlling the rotation of the driving motor 201, the driving rod 202 will be driven to rotate, and the rotation of the driving rod 202 will drive the rotation of the worm sleeve 203, and the engagement principle of the worm gear will drive the rotation of the worm wheel 204, and after meshing with the tooth plate 205, the tooth plates 205 on both sides will be driven to rise, and the rise of the tooth plate 205 will drive the synchronous lifting of the entire chain 206, and then drive the lifting operation of the fork bucket 4.

[0033] In addition, a sprocket 207 is rotatably connected to the chain 206, and the sprocket 207 is rotatably connected to the upper frame 209 through an axle rod. A positioning rod 219 is fixedly connected inside the upper frame 209, and the bottom of the positioning rod 219 is movably connected to the inside of the driving rod 202. A spiral groove 214 is opened on the positioning rod 219, and a sliding pin 220 is slidably connected to the spiral groove 214. One end of the sliding pin 220 is fixedly connected to a rotating sleeve 215, and the rotating sleeve 215 is rotatably connected to the lifting plate 210. The bottom of the rotating sleeve 215 is connected to an intermediate gear 212, and the intermediate gear 212 is slidably connected to the positioning rod 219. The surface of the intermediate gear 212 is meshed with a matching gear 216, and an inner threaded sleeve 217 is fixedly connected to the inside of the matching gear 216. The inner threaded sleeve 217 is connected to a lifting screw rod 218, one end of which is connected to the upper frame 209, and a fixed plate 213 is slidably connected to the surface of the lifting screw rod 218, and the fixed plate 213 is fixed to the column 6. The guide rod 208 is slidably connected to the inside of the column 6, and a sleeve 223 is also provided on the column 6, and two worm gears 204 are rotatably connected to the sleeve 223 through the shaft. The rise of the tooth plate 205 will drive the synchronous rise of the lifting plate 210, and the rotating sleeve 215 connected to the lifting plate 210 will move upward, but the sliding pin 220 inside the rotating sleeve 215 will slide in the spiral groove 214 provided on the surface of the positioning rod 219 during the rising process, thereby controlling the rotating sleeve 215 to rotate during the rising process, thereby driving the intermediate gear 212 connected thereto to rotate, and utilizing the meshing of the gears to rotate the matching gear 216, and then driving the rotation of the internal inner screw sleeve 217, which is connected to the lifting screw rod 218 by thread, and at this time, the lifting screw rod 218 will be extended again on the lifting plate 210, thereby driving the sprocket wheel 207 on the side to rise, and then driving the fork bucket 4 under the chain 206 to be lifted to a higher height. Therefore, the overall secondary extension is achieved, thereby driving the fork bucket 4 to achieve a higher height lifting operation.

[0034] In addition, an oil bottle 222 is inserted into the sleeve 223, one end of the oil bottle 222 abuts against the upper surface of the worm sleeve 203, an oil inlet 224 is provided at the top of the worm sleeve 203, and a plurality of oil flow ports 221 are provided on the surface of the worm sleeve 203, and the oil flow ports 221 are connected to the oil inlet 224. When the forklift is operating, the worm sleeve 203 will control the oil inlet 224 to be connected with the oil bottle 222 every time it rotates one circle, and the internal lubricating oil will enter the worm sleeve 203 through the position of the oil inlet 224 and then flow out from the plurality of oil flow ports 221, thereby forming a lubricating effect on the worm sleeve 203 and the worm wheel 204. In order to prevent long-term leakage, an oil inlet 224 is set, and then when the worm sleeve 223 rotates one circle, it will be connected once, and the lubricating oil will flow in, and the rest of the parts will be in abutment state to achieve oil blocking.

[0035] It is worth noting that the seat trigger assembly 3 is also included. The seat trigger assembly 3 includes a seat 301. The bottom of the seat 301 is connected to a plurality of vertical rods 302. The vertical rods 302 are slidably connected to the control cabinet 5. The surface of the vertical rods 302 is sleeved with a large spring 306. The top of the large spring 306 is connected to the seat 301, and the bottom of the large spring 306 is connected to the control cabinet 5. The multiple large springs 306 under the seat 301 can also provide a certain degree of vehicle driving buffer for the driver, thereby improving the driver's comfort. The bottom of the seat 301 is connected to a pressure rod 303. A trigger rod 304 is arranged below the pressure rod 303. The trigger rod 304 is slidably connected to the control cabinet 5. A small spring 305 is sleeved on the trigger rod 304. One end of the small spring 305 is connected to the control cabinet 5. The trigger rod 304 is electrically connected to the ignition key inside the frame 1 through a wire. When the operator sits on the seat 301, the operator will be moved downward by the gravity of the operator, which will squeeze the large spring 306, and then control the downward movement of the pressure rod 303 to contact the trigger rod 304, and control the trigger rod 304 to move downward. At this time, the electronic control module of the forklift will be connected, and the operator will start the ignition key to start the forklift. The purpose of this is to control that there is always someone on the seat 301, because in actual operation, many forklift drivers will leave the forklift and manually control the position of the materials, forgetting to turn off the power of the forklift. At this time, the vehicle is in an unmanned state. If the joystick malfunctions, the forklift will be out of control directly, causing great losses.

[0036] Working principle: when the forklift is in use, first, when the operator sits on the seat 301, the operator will be moved down by the gravity of the operator, which will squeeze the large spring 306, and then control the downward movement of the pressure rod 303 to contact the trigger rod 304, and resist the control trigger rod 304 to move downward. At this time, the electronic control module of the forklift will be connected, and the operator will start the ignition key again, and the forklift will start. The purpose of this is to control that there is always someone on the seat 301, because in actual operation, many forklift drivers will leave the forklift and manually control the position of the material, forgetting to turn off the power of the forklift. At this time, the vehicle is in an unmanned state. If the joystick malfunctions, the forklift will directly lose control, causing great losses, and when the driver leaves the driving position and the forklift is turned off, it will also save a certain degree of forklift energy consumption and avoid fuel consumption in a long-term standby state. At the same time, using multiple large springs 306 under the seat 301, it can also provide a certain degree of vehicle driving buffer for the driver, improving the driver's comfort. While the vibration of the vehicle causes the pressure rod 303 to move up and down, the small spring 305 at the bottom will always provide elastic force to control the upward movement of the trigger rod 304 to form a pressure contact with the pressure rod 303. After that, the operator controls the rotation of the drive motor 201, which will drive the rotation of the drive rod 202, and the rotation of the drive rod 202 will drive the rotation of the worm sleeve 203, and the worm gear 204 will be driven to rotate by the meshing principle of the worm gear, and after meshing with the tooth plate 205, the tooth plates 205 on both sides will be driven to rise, and the rise of the tooth plate 205 will drive the synchronous rise of the lifting plate 210, and the rotating sleeve 215 connected to the lifting plate 210 will move upward, but the sliding pin 220 inside the rotating sleeve 215 will be on the positioning rod 219 during the rising process. The rotating sleeve 215 can slide in the spiral groove 214 provided on the surface of the forklift 210, thereby controlling the rotating sleeve 215 to rotate during the rising process, thereby driving the intermediate gear 212 connected thereto to rotate. When the intermediate gear 212 rotates, it will drive the matching gear 216 meshing therewith to rotate, and then drive the internal inner screw sleeve 217 to rotate, and after being threadedly connected with the lifting screw rod 218, the lifting screw rod 218 will extend again on the lifting plate 210, thereby driving the sprocket wheel 207 on the side to rise, and then driving the fork bucket 4 under the chain 206 to be lifted to a high degree. Finally, the forklift's forklift operation is realized. The whole process utilizes the meshing self-locking principle of the worm gear, and can be self-locked after the forklift is lifted to a certain height. There is no need to use other energy consumption to maintain pressure like the traditional oil cylinder or electric component, so as to achieve energy saving while ensuring the stability after forking the material. In addition, the whole process utilizes the rotation force to indirectly drive the lifting of the material. Compared with the traditional oil cylinder, it is more labor-saving, has lower requirements on equipment, and has lower production costs.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A high-efficiency energy-saving forklift, characterized by: The vehicle comprises a frame (1), a column (6) is mounted on the frame (1), a fork bucket (4) is slidably connected to the column (6), a lifting mechanism (2) is arranged on the column (6), the lifting mechanism (2) is used to control the self-locking rise and fall of the fork bucket (4), a control cabinet (5) is arranged inside the frame (1), and a storage battery is arranged inside the control cabinet (5); The lifting mechanism (2) comprises a driving device and a lifting device, wherein the driving device drives the lifting device to perform secondary extension and retraction, and utilizes the lifting of the fork bucket (4) to achieve a material lifting operation, and the driving device is electrically connected to a battery.

2. The energy-efficient forklift according to claim 1, characterized in that: The driving device comprises a driving motor (201), the driving motor (201) is electrically connected to a storage battery via a control component, the driving motor (201) is mounted on a column (6), an output end of the driving motor (201) is connected to a driving rod (202), a worm sleeve (203) is fixedly connected to the driving rod (202), two worm wheels (204) are meshed on the worm sleeve (203), and the worm wheel (204) is connected to a lifting device.

3. The energy-efficient forklift according to claim 2, characterized in that: The lifting device comprises a toothed plate (205), one side of the toothed plate (205) is meshed with a worm gear (204), the top of the toothed plate (205) is fixedly connected with a lifting plate (210), one side of the lifting plate (210) is connected with a chain (206) via a connecting plate (211), and one end of the chain (206) is connected to a fork bucket (4).

4. The energy-efficient forklift according to claim 3, characterized in that: The chain (206) is rotatably connected to a sprocket (207), and the sprocket (207) is rotatably connected to an upper frame (209) via an axle rod. A positioning rod (219) is fixedly connected inside the upper frame (209), and the bottom of the positioning rod (219) is movably connected to the inside of the driving rod (202). A spiral groove (214) is provided on the positioning rod (219), and a sliding pin (220) is slidably connected to the spiral groove (214). One end of the sliding pin (220) is fixedly connected to a rotating sleeve (215), and the rotating sleeve (215) is rotatably connected to the lifting plate (210). The bottom of the rotating sleeve (215) is connected to an intermediate gear (212), and the intermediate gear (212) is slidably connected to the positioning rod (219).

5. The energy-efficient forklift according to claim 4, characterized in that: The surface of the intermediate gear (212) is meshed with a matching gear (216), the interior of the matching gear (216) is fixedly connected with an internal threaded sleeve (217), the internal thread of the internal threaded sleeve (217) is connected with a lifting screw rod (218), one end of the lifting screw rod (218) is connected to the upper frame (209), the surface of the lifting screw rod (218) is slidably connected with a fixing plate (213), and the fixing plate (213) is fixed on the column (6).

6. The energy-efficient forklift according to claim 5, characterized in that: The tooth plate (205) is slidably connected to a guide rod (208), which is fixed inside the column (6). A sleeve (223) is also provided on the column (6), and the two worm wheels (204) are rotatably connected to the sleeve (223) via a shaft.

7. The energy-efficient forklift according to claim 6, characterized in that: An oil bottle (222) is inserted into the sleeve (223), one end of the oil bottle (222) abuts against the upper surface of the worm sleeve (203), an oil inlet (224) is provided at the top of the worm sleeve (203), and a plurality of oil flow ports (221) are provided on the surface of the worm sleeve (203), and the oil flow ports (221) are connected to the oil inlet (224).

8. The energy-efficient forklift according to claim 1, characterized in that: The invention also comprises a seat trigger assembly (3), wherein the seat trigger assembly (3) comprises a seat (301), the bottom of the seat (301) is connected to a plurality of vertical rods (302), the vertical rods (302) are slidably connected to a control cabinet (5), a large spring (306) is sleeved on the surface of the vertical rod (302), the top of the large spring (306) is connected to the seat (301), and the bottom of the large spring (306) is connected to the control cabinet (5).

9. The energy-efficient forklift according to claim 8, characterized in that: The bottom of the seat (301) is connected to a pressure rod (303), a trigger rod (304) is arranged below the pressure rod (303), the trigger rod (304) is slidably connected to a control cabinet (5), a small spring (305) is sleeved on the trigger rod (304), one end of the small spring (305) is connected to the control cabinet (5), and the trigger rod (304) is electrically connected to an ignition key inside the frame (1) through a wire.

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