pallet truck powertrain, pallet truck

Abstract

This utility model relates to a powertrain for a pallet truck, including a base, a hydraulic system, a drive system, and a controller. The controller is located on the right side of the base. A drive wheel is mounted on the lower end of the base via an axle, with both ends of the axle engaging with the base. The drive motor is positioned left-right on the base, with its left side serving as the output terminal and connected to a reduction gear, and its right side serving as the wiring terminal and electrically connected to the controller. A pallet truck includes a fork carriage with a connecting rod wheel assembly below it. The powertrain employs the aforementioned pallet truck powertrain, with a load-bearing bridge mounted on the cylinder block of the powertrain, the load-bearing bridge being hinged to the connecting rod wheel assembly. The wiring between the drive motor and the controller is shortened; the solenoid valve wire can pass through a first through-hole, eliminating the need for exposed wiring and facilitating its routing.

Description

Technical Field

[0001] This utility model relates to the field of material handling equipment, specifically to a powertrain for a material handling vehicle and the material handling vehicle itself. Background Technology

[0002] The powertrain of a pallet truck is a core component of the pallet truck. It integrates a drive system and a hydraulic system. The drive system controls the rotation of the drive wheels, while the hydraulic system drives the hydraulic cylinders to lift and lower, thereby realizing the lifting and lowering operation of the fork carriage.

[0003] Existing powertrains typically integrate various electrical components such as controllers, hydraulic motors, drive motors, and solenoid valves on their mounting base, and are connected to the controller via wires. Referring to prior patent CN221296055U (Powertrain on a transport vehicle and the transport vehicle itself), current powertrains mainly suffer from the following problems: an unreasonable overall layout design leads to excessively long and messy wiring; furthermore, the drive wheels use a single-sided support method via the axle, resulting in insufficient support strength. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a powertrain for a transport vehicle and a transport vehicle, thereby solving the technical problems of unreasonable design of the current transport vehicle powertrain, which leads to messy wiring on the powertrain and low support strength due to the use of single-sided support for the drive wheels.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] First aspect:

[0007] A powertrain for a transport vehicle is provided, including...

[0008] Seat, hydraulic system, drive system, and controller;

[0009] The controller is located on the right side of the base;

[0010] The drive system includes a drive motor, a drive wheel, and a reduction gear. The drive wheel is mounted on the lower end of the seat via an axle, and both ends of the axle are engaged with the seat.

[0011] The drive motor is arranged in a left-right orientation on the base, with its left side being the output end and connected to the reduction gear for transmission, and its right side being the wiring end and connected to the controller for electrical connection.

[0012] Furthermore, the seat body includes a middle seat, a left seat, and a right seat, and the controller is located on the right side of the middle seat;

[0013] The drive wheel is mounted between the left and right seats via an axle. The left seat extends toward the rear of the middle seat to form a motor mounting plate. A drive motor is mounted on the right side of the motor mounting plate. The reduction gear is located on the left side of the left seat and the left side of the motor mounting plate.

[0014] Furthermore, a first through hole is provided on the motor mounting plate for threading the solenoid valve wire.

[0015] Furthermore, a second through hole is provided on the rear side of the controller housing for passing through the drive motor wires.

[0016] Furthermore, a third through hole is provided on the front side of the controller housing for threading the handle power cord through.

[0017] Furthermore, a handle seat and a cylinder seat are provided on the intermediate seat.

[0018] The second aspect:

[0019] Provide a transport vehicle, including

[0020] A fork carriage, with a linkage wheel assembly disposed below the fork carriage;

[0021] The powertrain adopts the aforementioned transport vehicle powertrain, wherein a load-bearing bridge is provided on the cylinder block of the powertrain, and the load-bearing bridge is hinged to the connecting rod wheel assembly.

[0022] The beneficial effects of this utility model are:

[0023] 1. The drive wheels are supported on the seat body at both ends of the wheel axle, which significantly improves the support strength and running stability;

[0024] 2. The drive motor is arranged in a left-right direction, so that its wiring terminals are close to the controller, thus shortening the length of the wires between the two;

[0025] 3. By setting the first through hole, the second through hole, and the third through hole, respectively, the solenoid valve wire, the drive motor wire, and the handle power cable are respectively used to make the wire arrangement neater and more orderly, avoiding exposure and mess. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 and Figure 2 This is a schematic diagram of the powertrain of the transport vehicle of this utility model;

[0028] Figure 3 and Figure 4 This is a schematic diagram of the base;

[0029] Figure 5 This is a diagram of a transport vehicle;

[0030] Among them, 1. base body, 11. middle base, 12. left base, 13. right base, 14. motor mounting plate;

[0031] 2. Drive system; 21. Drive motor; 22. Drive wheel; 23. Reduction gear.

[0032] 3. Hydraulic system; 31. Hydraulic motor; 32. Oil tank; 33. Solenoid valve; 34. Hydraulic cylinder.

[0033] 4. Controller; 41. Housing; 42. Cover plate;

[0034] 51. First perforation; 52. Second perforation; 53. Third perforation;

[0035] 61. Fork carriage; 62. Linkage wheel assembly; 63. Load-bearing axle. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] This application provides a powertrain for a transport vehicle, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0038] To address the technical problems in existing transport vehicle powertrains, such as haphazard wiring and low support strength due to single-sided support of the drive wheel 22, an embodiment of this application provides a transport vehicle powertrain. This is described in detail below.

[0039] like Figures 1 to 4 As shown, a powertrain for a transport vehicle includes...

[0040] 1. Seat body; 3. Hydraulic system; 2. Drive system; and 4. Controller.

[0041] The controller 4 is located on the right side of the base 1;

[0042] The drive system 2 includes a drive motor 21, a drive wheel 22 and a reduction device 23. The drive wheel 22 is mounted on the lower end of the base 1 via a wheel axle, and both ends of the wheel axle are engaged with the base 1.

[0043] The drive motor 21 is arranged in a left-right direction on the base 1. Its left side is the output end and is connected to the speed reduction device 23 for transmission, and its right side is the wiring end and is connected to the controller 4 for electrical connection.

[0044] Specifically, as an optional implementation method in this embodiment, such as Figure 3 and Figure 4 As shown, the seat 1 includes a middle seat 11, a left seat 12 and a right seat 13, and the controller 4 is located on the right side of the middle seat 11;

[0045] The drive wheel 22 is mounted between the left seat 12 and the right seat 13 via a wheel axle. The left seat 12 extends toward the rear of the middle seat 11 to form a motor mounting plate 14. A drive motor 21 is mounted on the right side of the motor mounting plate 14. The reduction device 23 is located on the left side of the left seat 12 and the motor mounting plate 14.

[0046] In this embodiment, a handle seat and a cylinder seat are provided on the intermediate seat 11. The handle seat and the cylinder seat are integrally formed with the intermediate seat 11. The handle seat is connected to a handle connector, and a hydraulic cylinder 34 is installed inside the cylinder seat.

[0047] In this embodiment, the hydraulic system 3 includes a hydraulic motor 31, an oil tank 32, a gear pump assembly (not shown in the figure), a solenoid valve 33, and a hydraulic cylinder 34. The hydraulic cylinder 34 is housed in a cylinder seat, the oil tank 32 is located outside the left side seat 12, the gear pump assembly is housed in the oil tank 32 and forms an oil circuit connection with the hydraulic cylinder 34, while also forming a transmission connection with the hydraulic motor 31. The solenoid valve 33 connects the hydraulic cylinder 34 and the oil tank 32, and is used to unload oil from the hydraulic cylinder 34. During operation, the drive motor 21 drives the gear pump assembly to work, and the gear pump assembly delivers hydraulic oil to the hydraulic cylinder 34, causing the hydraulic cylinder 34 to lift, thereby raising the forklift 61 of the pallet truck. The solenoid valve 33 is controlled by the controller 4. When the solenoid valve 33 connects the hydraulic cylinder 34 and the oil tank 32, the hydraulic cylinder 34 lowers.

[0048] The left end of the drive motor 21 is directly connected to the gear pump assembly, while the right end of the drive motor 21 extends into the housing 41 of the controller 4, facilitating its connection to the control panel inside the controller 4.

[0049] In this embodiment, as Figure 3 As shown, the controller 4 includes a housing 41, a cover plate 42, and a control panel. The housing 41 is structured together with the intermediate base 11. The cover plate 42 is mounted on the housing 41 by screws. The control panel is located inside the housing 41. A motor hole is provided on the right side of the intermediate housing, and the hydraulic motor 31 extends into the housing 41 from the motor hole.

[0050] Specifically, as an optional implementation method in this embodiment, such as Figures 1 to 4As shown, a first through hole 51 is provided on the motor mounting plate 14. The solenoid valve 33 is installed on the left side seat 12, and the wire connecting the solenoid valve 33 and the controller 4 passes through the first through hole 51, which provides a lot of constraint on the wire.

[0051] Specifically, as an optional implementation method in this embodiment, such as Figures 1 to 4 As shown, a second through hole 52 is provided on the rear side of the housing 41 of the controller 4. The second through hole 52 is located next to the wiring terminal of the drive motor 21, and the wires of the drive motor 21 wiring terminal can almost directly enter the controller 4, greatly reducing the exposed wires at this point.

[0052] Specifically, as an optional implementation method in this embodiment, such as Figures 1 to 4 As shown, a third through hole 53 for threading the handle power cord is provided on the front side of the housing 41 of the controller 4. The third through hole 53 is close to the handle base, and the wires extending from the handle can be directly threaded into the controller 4 through the third through hole 53, which facilitates wiring here.

[0053] In this embodiment, the reduction gear 23 is prior art; for details, please refer to the prior art document CN221296055U - Powertrain and transport vehicle on a transport vehicle. The reduction gear 23 consists of multiple reduction gear sets.

[0054] In this embodiment, as Figures 1 to 4 As shown, the motor mounting plate 14 and the left seat 12 are on the same plane, forming a stepped opening between the motor mounting plate 14 and the rear side of the middle seat 11. This stepped opening can be used to install the drive motor 21, optimizing the entire powertrain structure and shortening the distance between the drive motor 21 and the controller 4. In contrast, in the powertrain and transport vehicle of the prior patent CN221296055U, the controller 4 and drive motor 21 are distributed left and right on the seat 1. This structure inevitably requires the drive motor 21's wires to cross the entire powertrain to connect to the controller 4, resulting in more exposed wires and affecting the overall user experience. Furthermore, in the prior patent, the drive wheel 22 uses single-sided support, which is insufficient in strength. In this embodiment, the drive wheel 22 is mounted between the left seat 12 and the right seat 13 via an axle, with support at both ends of the axle, making the drive wheel 22 more stable.

[0055] Another embodiment of this application provides a transport vehicle. This will be described in detail below.

[0056] like Figure 5 As shown, a transport vehicle includes

[0057] A fork carriage 61, with a connecting wheel assembly 62 disposed below the fork carriage 61;

[0058] The powertrain adopts the aforementioned transport vehicle powertrain, wherein a bearing bridge 63 is provided on the cylinder block of the powertrain, and the bearing bridge 63 is hinged to the connecting rod wheel assembly 62 to realize power transmission and support.

[0059] All the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0060] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 utility model based on the specific circumstances.

[0061] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0063] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0064] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0065] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A powertrain for a transport vehicle, characterized in that, include Seat, hydraulic system, drive system, and controller; The controller is located on the right side of the base; The drive system includes a drive motor, a drive wheel, and a reduction gear. The drive wheel is mounted on the lower end of the seat via an axle, and both ends of the axle are engaged with the seat. The drive motor is arranged in a left-right orientation on the base, with its left side being the output end and connected to the reduction gear for transmission, and its right side being the wiring end and connected to the controller for electrical connection.

2. The powertrain for the transport vehicle according to claim 1, characterized in that, The seat includes a middle seat, a left seat, and a right seat, and the controller is located on the right side of the middle seat; The drive wheel is mounted between the left and right seats via an axle. The left seat extends toward the rear of the middle seat to form a motor mounting plate. A drive motor is mounted on the right side of the motor mounting plate. The reduction gear is located on the left side of the left seat and the left side of the motor mounting plate.

3. The powertrain for the transport vehicle according to claim 1, characterized in that, The motor mounting plate has a first through hole for threading the solenoid valve wire.

4. The powertrain for the transport vehicle according to claim 1, characterized in that, The controller housing has a second through hole on the rear side for threading the drive motor wires.

5. The powertrain for the transport vehicle according to claim 1, characterized in that, The controller housing has a third through hole on the front side for threading the handle power cord.

6. The powertrain for the transport vehicle according to claim 1, characterized in that, The intermediate seat is provided with a handle seat and a cylinder seat.

7. A transport vehicle, characterized in that, include A fork carriage, with a linkage wheel assembly disposed below the fork carriage; The powertrain adopts the transport vehicle powertrain according to any one of claims 1-6, wherein a load-bearing bridge is provided on the cylinder block of the powertrain, and the load-bearing bridge is hinged to the connecting rod wheel assembly.

Images