Electric forklift integrating transferring and unwinding functions

Abstract

The utility model relates to the technical field of transportation equipment, and discloses an electric forklift integrating transferring and unwinding functions, which comprises a forklift main body, the forklift main body comprises a fork arm frame assembly, a lifting assembly for driving the fork arm frame assembly to lift and a power system, and an unwinding motor is arranged on a motor mounting table at the top of the forklift main body. An output shaft of the unwinding motor is sleeved with an unwinding connector, and the unwinding connector is used for being connected with a cable reel so as to drive the cable reel to rotate relative to the fork arm frame assembly; the connecting position of the unwinding motor and the motor mounting table is adjustable, when the unwinding motor is located at the transfer position, the projection of the outermost end of the unwinding connector is located in the motor mounting table, and when the unwinding motor is located at the unwinding position, the outermost end of the unwinding connector protrudes out of the motor mounting table. The unwinding motor is integrated on the electric forklift, the electric forklift achieves transferring and unwinding of the cable reel, the structure is simple, the cost is low, operation is easy and convenient, and the unwinding efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, and more specifically, to an electric forklift integrating the functions of transportation and unwinding. Background Art

[0002] In the prior art, the transportation and unwinding process of a cable reel is as follows: manually or using machinery such as an electric forklift to transport the unwinding rack from the unwinding rack placement area to the operation station; using an electric forklift to transport the cable reel to the operation; using a hoist, crane, etc. to hoist the cable reel onto the unwinding rack; manually or using a motor to drive the unwinding rack to drive the cable reel to rotate, so that the cable is released from the cable reel for subsequent assembly operations.

[0003] The above transportation and unwinding process has a cumbersome operation process, requires multiple loading and unloading and handling operations, has a large workload, consumes a large amount of manpower and time, has low efficiency, and requires a variety of mechanical equipment, resulting in high equipment costs and high management and maintenance complexity.

[0004] In summary, how to provide a cable reel transportation and unwinding device with simple operation and low cost is an urgent problem to be solved by those skilled in the art at present. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide an electric forklift integrating the functions of transportation and unwinding, integrating the unwinding motor on the electric forklift, which can realize the transportation and unwinding of the cable reel by using the electric forklift, has a simple structure, low cost, simple operation and high unwinding efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric forklift integrating the functions of transportation and unwinding, including a forklift body, the forklift body includes a fork arm frame assembly, a lifting assembly for driving the fork arm frame assembly to lift, and a power system. A unwinding motor is provided on the motor mounting table at the top of the forklift body. A unwinding connection head is sleeved on the output shaft of the unwinding motor. The unwinding connection head is used to connect with the cable reel to drive the cable reel to rotate relative to the fork arm frame assembly;

[0008] The connection position of the unwinding motor and the motor mounting table is adjustable. When the unwinding motor is in the transportation position, the projection of the outermost end of the unwinding connection head is located within the motor mounting table. When the unwinding motor is in the unwinding position, the outermost end of the unwinding connection head protrudes from the motor mounting table.

[0009] Preferably, one of the motor base of the unwinding motor and the motor mounting table is provided with a guide rail and / or a chute, and the other is provided with a slider that slidably cooperates with the guide rail and / or the chute. The guide rail and the chute are arranged along the extending direction of the fork arm frame assembly.

[0010] Preferably, it further includes a locking member for fixing the relative positions of the unwinding motor and the motor mounting table. The motor mounting table is provided with positioning holes for mounting the locking member at both ends of the guide rail and / or the chute, and the motor base of the unwinding motor is provided with connection holes for mounting the locking member.

[0011] Preferably, an electric push rod is provided between the motor base of the unwinding motor and the motor mounting table. The fixed end of the electric push rod is connected to the motor mounting table, and the moving end of the electric push rod is connected to the motor base of the unwinding motor.

[0012] Preferably, the axis of the unwinding motor is horizontally arranged, and the axis of the unwinding motor is located in the vertical symmetry plane of the two fork arms of the fork arm frame assembly.

[0013] Preferably, a connecting shaft is provided on the side of the unwinding connector relatively far from the unwinding motor, and the connecting shaft is key-connected to the mounting hole on the end face of the cable reel.

[0014] Preferably, the unwinding connector includes an air shaft, and the air shaft is used for interference fit connection with the mounting hole on the end face of the cable reel.

[0015] Preferably, both ends of the two fork arms of the fork arm frame assembly in the extending direction are provided with recessed portions, and the recessed portions are arranged lower than the surface of the fork arms. When the recessed portions are in contact with the outer peripheral surfaces of the end plates at both ends of the cable reel, there is a gap between the fork arms and the main body of the cable reel.

[0016] Preferably, the recessed portion includes a roller arranged along the extending direction of the fork arm, and the roller is rotatably arranged in the roller groove of the fork arm through a rotating shaft.

[0017] Preferably, the roller is connected to a roller motor, and the roller motor is used to drive the roller to rotate around the rotating shaft.

[0018] The electric forklift integrating the functions of transportation and unwinding provided by the present invention integrates the unwinding motor on the electric forklift, uses the fork arm frame assembly to support and transport the cable reel, and uses the unwinding motor to drive the cable reel to rotate to realize the unwinding of the cable. It not only reduces the number of devices required for transportation and unwinding, reduces the equipment cost, but also avoids frequent loading and unloading operations, is easy to operate, and has high unwinding efficiency. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0020] Figure 1 Structural schematic diagram of a specific embodiment of an electric forklift integrating transfer and unwinding functions provided by the present invention;

[0021] Figure 2 Structural schematic diagram of the fork arm frame assembly;

[0022] Figure 3 Structural schematic diagram of the lifting assembly, power system, and motor mounting platform;

[0023] Figure 4 Structural schematic diagram of the unwinding motor and unwinding connector;

[0024] Figure 5 Assembly schematic diagram of the electric forklift integrating transfer and unwinding functions and the cable reel.

[0025] Figures 1 - 5 In:

[0026] 10 - Fork arm frame assembly; 101 - Fork arm; 102 - Roller; 103 - Guide wheel; 20 - Lifting assembly; 201 - Guide bracket; 30 - Power system; 40 - Motor mounting platform; 401 - Guide rail; 50 - Unwinding motor; 501 - Motor seat; 502 - Slide block; 60 - Unwinding connector; 70 - Cable reel. Detailed implementation manners

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the 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 of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] The core of the present invention is to provide an electric forklift integrating transfer and unwinding functions, integrating the unwinding motor on the electric forklift, which can use the electric forklift to realize the transfer and unwinding of the cable reel, with simple structure, low cost, convenient operation, and high unwinding efficiency.

[0029] The electric forklift with integrated transfer and unwinding functions provided by the utility model includes a forklift main body, which includes a fork arm frame assembly 10, a lifting assembly 20 for driving the lifting of the fork arm frame assembly 10, and a power system 30. A unwind motor 50 is provided on the motor mounting table 40 at the top of the forklift main body. A unwind connection head 60 is sleeved on the output shaft of the unwind motor 50. The unwind connection head 60 is used to connect with a cable reel 70 to drive the cable reel 70 to rotate relative to the fork arm frame assembly 10.

[0030] The connection position of the unwind motor 50 and the motor mounting table 40 is adjustable. When the unwind motor 50 is in the transfer position, the projection of the outermost end of the unwind connection head 60 is located within the motor mounting table 40. When the unwind motor 50 is in the unwind position, the outermost end of the unwind connection head 60 protrudes from the motor mounting table 40.

[0031] Among them, the fork arm frame assembly 10 is connected to the mobile end of the lifting assembly 20, and the lifting assembly 20 is connected to the power system 30, so that the power system 30 can control the lifting of the fork arm frame assembly 10 through the lifting assembly 20. To avoid deviation during the lifting process, the guide wheels 103 of the fork arm frame assembly 10 are slidably arranged within the guide brackets 201 of the lifting assembly 20.

[0032] The specific structures, shapes, sizes, etc. of the fork arm frame assembly 10, the lifting assembly 20, and the power system 30 can be determined with reference to existing electric forklifts according to the actual production needs, and will not be elaborated here.

[0033] The unwind motor 50 is arranged on the motor mounting table 40 at the top of the forklift main body. The unwind motor 50 can move relative to the motor mounting table 40 between the transfer position and the unwind position. The above movement can be a linear motion or a rotational motion; the above movement can be manually driven or driven by a linear motor, a servo motor, etc.

[0034] The unwind motor 50 is connected to the cable reel 70 through the unwind connection head 60. When the unwind motor 50 rotates, the output shaft of the unwind motor 50 drives the unwind connection head 60 to rotate, and then drives the cable reel 70 connected to the unwind connection head 60 to rotate, realizing the unwinding of the cable reel 70.

[0035] In order to avoid the cable reel 70 colliding with the forklift main body during rotation, it is necessary to set a gap between the inner side of the cable reel 70, which is relatively close to the unwind motor 50, and the forklift main body when the cable reel 70 rotates. Therefore, the outermost end of the unwind connection head 60 needs to protrude from the motor mounting table 40 when unwinding.

[0036] When the electric forklift is transferring or lifting goods, in order to prevent the protruding unwind connection head 60 from affecting the normal operation of the electric forklift, it is necessary to move the unwind motor 50 to the transfer position so that the projection of the outermost end of the unwind connection head 60 is located within the motor mounting table 40.

[0037] The rotational clearance between the cable reel 70 and the forklift body is determined by the length of the unwinding connector 60 protruding from the motor mounting platform 40 and the matching length of the cable reel 70 and the unwinding connector 60 in actual production. Therefore, the matching length of the cable reel 70 and the unwinding connector 60 can be determined according to the load range of the cable reel 70, and then the length of the unwinding connector 60 protruding from the motor mounting platform 40 can be determined according to the designed rotational clearance of the cable reel 70.

[0038] When the cable reel 70 needs to be unwound, first, the unwinding motor 50 is controlled to move to the transfer position, the fork arm assembly 10 is controlled to fork the cable reel 70 to be unwound, and the electric forklift is used to transfer it to the work station; then the unwinding motor 50 is controlled to move to the unwinding position, and the unwinding connector 60 and the cable reel 70 are connected; finally, the unwinding motor 50 is controlled to rotate, and the unwinding motor 50 is used to drive the cable reel 70 to rotate to achieve unwinding.

[0039] In this embodiment, the unwinding motor 50 is integrated into the electric forklift, the fork arm frame assembly 10 is used to support and transport the cable reel 70, and the unwinding motor 50 is used to drive the cable reel 70 to rotate to achieve the unwinding of the cable. This not only reduces the number of equipment required for transportation and unwinding, reduces equipment costs, and avoids frequent loading and unloading operations. The operation is simple and the unwinding efficiency is high.

[0040] Preferably, in order to ensure that the two forks 101 of the fork arm frame assembly 10 are relatively evenly stressed when the cable reel 70 rotates, the axis of the unwinding motor 50 can be set horizontally, and the axis of the unwinding motor 50 is located in the vertical symmetry plane of the two forks 101 of the fork arm frame assembly 10, so that the cable reel 70 is symmetrically placed on the two forks 101, which is conducive to relatively even stress on the two forks 101.

[0041] On the basis of the above embodiment, in order to facilitate the guiding of the movement of the unwinding motor 50, one of the motor seat 501 of the unwinding motor 50 and the motor mounting platform 40 can be provided with a guide rail 401 and / or a slide groove, and the other is provided with a slider 502 that slides with the guide rail 401 and / or the slide groove, and the guide rail 401 and the slide groove are arranged along the extension direction of the fork arm frame assembly 10.

[0042] Considering that linear guides and linear slide grooves are usually simpler to process and have lower costs than arc guides and arc slide grooves, it is preferred to set the guide rails 401 and the slide grooves as linear guide rails and linear slide grooves, that is, the guide rails 401 and the slide grooves are set along the extension direction of the fork arm assembly 10.

[0043] When one of the motor seat 501 of the unwinding motor 50 and the motor mounting platform 40 is provided with a guide rail 401, a slider 502 provided on the other is provided with a slide groove, and the guide rail 401 is slidably installed in the slide groove of the slider 502;

[0044] When a chute is provided in either the motor base 501 of the unwinding motor 50 or the motor mounting table 40, a slider 502 provided on the other is slidably mounted in the above chute.

[0045] The specific shapes, structures, and dimensions of the guide rail 401, the chute, and the slider 502 are determined according to the requirements in actual production, such as the size of the motor mounting table 40, the axial length of the unwinding motor 50, and the axial length of the unwinding connector 60, etc., and will not be elaborated here;

[0046] There may be only one guide rail 401 and chute, or there may be two as shown in Figure 1 , and of course there may be multiple; Considering the guiding and limiting effect and manufacturing cost comprehensively, it is preferred to set two parallel guide rails 401 on the motor mounting table 40, and the motor base 501 of the unwinding motor 50 is provided with a slider 502 that slidably cooperates with the guide rail 401.

[0047] In this embodiment, a sliding connection structure is provided between the motor base 501 of the unwinding motor 50 and the motor mounting table 40, and the above sliding connection structure is used to limit the moving direction of the unwinding motor 50 to prevent the unwinding motor 50 from deviating when moving between the transfer position and the unwinding position.

[0048] On the basis of the above embodiment, in order to prevent the unwinding motor 50 from shifting during transfer or unwinding, a locking member for fixing the relative positions of the unwinding motor 50 and the motor mounting table 40 may also be provided. The motor mounting table 40 is provided with positioning holes for installing the locking member at both ends of the guide rail 401 and / or the chute, and the motor base 501 of the unwinding motor 50 is provided with connection holes for installing the locking member.

[0049] The locking member can be specifically set as a positioning pin, a locking bolt, etc. When the locking member is set as a positioning pin, the positioning holes on the motor mounting table 40 and the connection holes on the motor base 501 are both set as through holes; when the locking member is set as a locking bolt, the positioning holes on the motor mounting table 40 are set as bolt holes, and the connection holes on the motor base 501 can be set as either through holes or bolt holes.

[0050] On the basis of the above embodiment, in order to facilitate the movement of the unwinding motor 50, an electric push rod can be provided between the motor base 501 of the unwinding motor 50 and the motor mounting table 40. The fixed end of the electric push rod is connected to the motor mounting table 40, and the moving end of the electric push rod is connected to the motor base 501 of the unwinding motor 50.

[0051] Please refer to Figure 1 , when the electric push rod is provided at one end of the motor mounting table 40 relatively far from the fork arm frame assembly 10, controlling the electric push rod to extend, the electric push rod can push the unwinding motor 50 to move in the direction relatively close to the fork arm frame assembly 10 until the unwinding motor 50 moves to the unwinding position;

[0052] Conversely, when controlling the electric push rod to shorten, the electric push rod can drive the unwinding motor 50 to move in a direction relatively away from the fork arm frame assembly 10 until the unwinding motor 50 moves to the transfer position. At this time, the projection of the outermost end of the unwinding connector 60 is located within the motor mounting table 40.

[0053] Of course, the electric push rod can also be replaced with a linear power mechanism with similar functions such as a telescopic cylinder or a linear motor.

[0054] Based on the above embodiments, the connection method between the unwinding connector 60 and the cable reel 70 is defined. A connecting shaft is provided on the side of the unwinding connector 60 relatively away from the unwinding motor 50. The connecting shaft is key-connected to the mounting hole on the end face of the cable reel 70. Therefore, the unwinding connector 60 can drive the cable reel 70 to rotate synchronously.

[0055] The key connection between the connecting shaft of the unwinding connector 60 and the cable reel 70 can be a flat key connection or a spline connection. The specific structure, shape, and size of the keyway are determined according to the dimensions of the connecting shaft and the cable reel 70 in actual production based on the design connection strength check calculation.

[0056] In addition, the unwinding connector 60 can also be set as an air shaft, which is used for interference fit connection with the mounting hole on the end face of the cable reel 70, and drives the cable reel 70 and the unwinding connector 60 to rotate synchronously by means of interference fit.

[0057] Based on the above embodiments, in order to stably arrange the cable reel 70 on the fork arm frame assembly 10, recessed portions are provided at both ends of the two fork arms 101 of the fork arm frame assembly 10 in the extending direction. The recessed portions are arranged lower than the surface of the fork arm 101. When the recessed portions are in contact with the outer peripheral surfaces of the end plates provided at both ends of the cable reel 70, there is a gap between the fork arm 101 and the main body of the cable reel 70.

[0058] Please refer to Figure 2 , the recessed portions of the fork arm 101 are used to contact the outer peripheral surfaces of the end plates of the cable reel 70. The recessed portions can axially limit the end plates of the cable reel 70, restricting the axial movement of the cable reel 70 during transportation, lifting, and unwinding, thereby improving the stability and reliability of the cable reel 70.

[0059] In this embodiment, axially limiting the end plates at both ends of the cable reel 70 by using the recessed portions significantly reduces the axial movement of the cable reel 70 during transportation, lifting, and unwinding, which is beneficial to improving the assembly stability and reliability of the cable reel 70;

[0060] At the same time, the recessed portions are arranged lower than the surface of the fork arm 101, which will not affect the normal transportation of other goods.

[0061] The recessed part can be only a limit groove structure provided on the fork arm 101. To reduce the frictional force between the recessed part and the cable reel 70, it is preferably set that the recessed part includes a roller 102 arranged along the extending direction of the fork arm 101. The roller 102 is rotatably arranged in the roller groove of the fork arm 101 through a rotating shaft. The roller 102 can change the sliding friction between the recessed part and the cable reel 70 into rolling friction, which is beneficial to reducing the power consumption required for the unwinding motor 50 to drive the cable reel 70.

[0062] Furthermore, the roller 102 can be connected to a roller motor. The roller motor is used to drive the roller 102 to rotate around the rotating shaft, and the roller motor is used to drive the roller 102 to rotate to further reduce the frictional force.

[0063] Of course, the roller 102 can also be replaced with a roller, a roller wheel or other similar structures.

[0064] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0065] The above has introduced in detail the electric forklift integrating the functions of transshipment and unwinding provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. An electric forklift with integrated transfer and unwinding functions, characterized in that: The forklift comprises a forklift body, the forklift body comprising a fork arm frame assembly (10), a lifting assembly (20) and a power system (30) for driving the fork arm frame assembly (10) to rise and fall, a motor mounting platform (40) on the top of the forklift body being provided with an unwinding motor (50), an output shaft sleeve of the unwinding motor (50) being provided with an unwinding connector (60), the unwinding connector (60) being used to connect to a cable drum (70) so as to drive the cable drum (70) to rotate relative to the fork arm frame assembly (10); The connection position between the unwinding motor (50) and the motor mounting platform (40) is adjustable; when the unwinding motor (50) is in the transfer position, the projection of the outermost end of the unwinding connector (60) is located inside the motor mounting platform (40); and when the unwinding motor (50) is in the unwinding position, the outermost end of the unwinding connector (60) protrudes from the motor mounting platform (40).

2. The electric forklift with integrated transfer and unwinding functions according to claim 1, characterized in that: One of the motor seat (501) of the unwinding motor (50) and the motor mounting platform (40) is provided with a guide rail (401) and / or a slide groove, and the other is provided with a slider (502) slidably matched with the guide rail (401) and / or the slide groove, and the guide rail (401) and the slide groove are arranged along the extension direction of the fork arm frame assembly (10).

3. The electric forklift with integrated transfer and unwinding functions according to claim 2, characterized in that: It also includes a locking member for fixing the relative position of the unwinding motor (50) and the motor mounting platform (40), the motor mounting platform (40) is provided with positioning holes for installing the locking member at both ends of the guide rail (401) and / or the slide groove, and the motor seat (501) of the unwinding motor (50) is provided with a connecting hole for installing the locking member.

4. The electric forklift with integrated transfer and unwinding functions according to claim 2, characterized in that: An electric push rod is provided between the motor seat (501) of the unwinding motor (50) and the motor mounting platform (40); a fixed end of the electric push rod is connected to the motor mounting platform (40), and a movable end of the electric push rod is connected to the motor seat (501) of the unwinding motor (50).

5. The electric forklift with integrated transfer and unwinding functions according to any one of claims 1 to 4, characterized in that: The axis of the unwinding motor (50) is arranged horizontally, and the axis of the unwinding motor (50) is located within the vertical symmetry plane of the two forks (101) of the fork arm frame assembly (10).

6. The electric forklift with integrated transfer and unwinding functions according to claim 5, characterized in that: A connecting shaft is provided on a side of the unwinding connector (60) relatively far from the unwinding motor (50), and the connecting shaft is key-connected to a mounting hole on an end surface of the cable drum (70).

7. The electric forklift with integrated transfer and unwinding functions according to claim 5, characterized in that: The unwinding connector (60) comprises an inflatable shaft, and the inflatable shaft is used to be connected to the mounting hole on the end surface of the cable drum (70) by interference fit.

8. The electric forklift with integrated transfer and unwinding functions according to any one of claims 1 to 4, characterized in that: Both ends of the two forks (101) of the fork arm frame assembly (10) in the extension direction are provided with recessed portions, the recessed portions being arranged lower than the surface of the fork arms (101), and when the recessed portions abut against the outer peripheral surfaces of the end plates at both ends of the cable drum (70), a gap exists between the fork arms (101) and the main body of the cable drum (70).

9. The electric forklift with integrated transfer and unwinding functions according to claim 8, characterized in that: The recessed portion comprises a roller (102) arranged along the extension direction of the fork arm (101); the roller (102) is rotatably arranged in a roller groove of the fork arm (101) via a rotating shaft.

10. The electric forklift with integrated transfer and unwinding functions according to claim 9, characterized in that: The roller (102) is connected to a roller motor, and the roller motor is used to drive the roller (102) to rotate around the rotating shaft.

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