A manual disassembly and assembly tool cart for engine range extenders

Abstract

A manual engine range extender assembly / disassembly tool cart, belonging to the technical field of engine assembly equipment. The cart frame has omnidirectional brake wheels and fixed wheels. The frame has two linear slide rail assemblies, both connected to a moving platform. An adjustment mechanism is located on one side of the upper end of the moving platform, and a generator mounting plate is located on the other side. The generator mounting plate has multiple support rods. The moving platform is connected to a lead screw transmission mechanism via a nut bracket, and the lead screw transmission mechanism is fixedly connected to the frame. An engine mounting plate is located on the other side of the upper end of the frame, and it also has multiple support rods. The engine mounting plate works in conjunction with multiple engine pressure plate mechanisms, all of which are fixed to the frame. This manual engine range extender assembly / disassembly tool cart, through a series of precise mechanism and component designs, achieves rapid and accurate engine assembly / disassembly and fixation, greatly improving work efficiency and assembly / disassembly accuracy.

Description

Technical Field

[0001] This utility model belongs to the technical field of engine assembly equipment, specifically a manual disassembly and assembly tool cart for engine range extenders. Background Technology

[0002] The assembly process of engine range extenders faces numerous challenges in manufacturing and maintenance. On one hand, the motor rotor, employing a permanent magnet structure and mounted at the rear end of the engine crankshaft, generates significant magnetic torsional moments during the assembly of the rotor and stator. This greatly increases the difficulty of assembly, demanding extremely high precision in assembly processes and tools. On the other hand, traditional, simple disassembly and assembly tools are insufficient to meet the increasingly stringent assembly standards during the assembly and subsequent maintenance of range extenders. These simple tools are prone to scratching the copper wires in the stator coils during operation, affecting product quality, leading to low efficiency in manual assembly, complex and cumbersome procedures, and high safety risks. This severely limits the assembly precision and final product quality of the range extender. Utility Model Content

[0003] To address the problems existing in the background art, this utility model provides a manual disassembly and assembly tool cart for engine range extenders.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a manual disassembly and assembly tool cart for an engine range extender, comprising a frame, an adjustment mechanism, a mobile platform, a generator mounting plate 1, a nut bracket, an engine mounting plate 2, an engine pressure plate mechanism, a screw transmission mechanism, two universal brake wheels, two fixed wheels, two linear slide rail assemblies, multiple support rods 1 and multiple support rods 2.

[0005] The lower end of the frame is equipped with a universal brake wheel and a fixed wheel. Two linear slide rail assemblies are located on one side of the upper end of the frame, both of which are connected to the lower end of the moving platform. An adjustment mechanism is located on one side of the upper end of the moving platform, and a vertically mounted generator mounting plate is located on the other side. Multiple horizontal support rods are mounted on the generator mounting plate. The lower end of the moving platform is connected to a screw drive mechanism via a nut bracket. The screw drive mechanism is fixedly connected to the upper end of the frame and positioned between the two linear slide rail assemblies. An engine mounting plate is located on the other side of the upper end of the frame, with multiple support rods. The engine mounting plate works in conjunction with multiple engine pressure plate mechanisms, all of which are fixed to the frame.

[0006] The lead screw transmission mechanism includes a trapezoidal lead screw, a lead screw nut, a handwheel, a semi-circular key, a bolt, a washer, and two bearing seats;

[0007] The two ends of the trapezoidal lead screw are rotatably connected to the corresponding bearing seats. Both bearing seats are fixedly connected to the vehicle frame. The lead screw nut is threadedly connected to the trapezoidal lead screw and is located between the two bearing seats. The lead screw nut is fixedly connected to the nut bracket. The trapezoidal lead screw and the handwheel are limited by a semi-circular key and fixedly connected by a bolt. A washer is fitted on the bolt.

[0008] The adjustment mechanism includes a top rod and a base;

[0009] The base is fixedly connected to the upper end of the mobile platform and is set in a corresponding manner with the generator mounting plate. The base is provided with threaded holes, and the outer wall of the top rod is provided with external threads. The top rod is threadedly connected to the threaded holes.

[0010] Each of the aforementioned engine pressure plate mechanisms includes an internally threaded tube, a pressure plate, and two bolts;

[0011] The internally threaded tube is vertically arranged and fixedly connected to the vehicle frame. The pressure plate has an elongated hole along its length. The bolt 2 rotates through the elongated hole and is threadedly connected to the internally threaded tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Precise positioning and support: The engine is placed on the engine mounting plate 2, and multiple support rods 2 are connected to the engine cylinder block support holes, providing the engine with preliminary and precise positioning and support, which helps to facilitate the smooth progress of subsequent disassembly and assembly operations.

[0014] 2. Secure and reliable fixation: The engine is fixed by multiple engine pressure plate mechanisms. By adjusting the position of the pressure plate on the long hole and tightening it with bolts, the engine can be firmly fixed, avoiding engine shaking or displacement during disassembly and assembly, and ensuring operational safety.

[0015] 3. Flexible Position Adjustment: The position of the moving platform can be flexibly adjusted via the screw drive mechanism. Turning the handwheel rotates the trapezoidal screw, which in turn drives the screw nut to move horizontally. The screw nut is connected to the moving platform through the nut bracket, thereby driving the moving platform to move along the linear slide rail assembly closer to the engine for convenient subsequent docking operations.

[0016] 4. Precise and efficient docking: When the mobile platform approaches the engine, multiple support rods on the generator mounting plate at its upper end precisely dock with the engine rotor, limiting the magnetic torsional moment between the stator and rotor, ensuring that the stator and rotor maintain an appropriate fit clearance during installation, ensuring the normal operation of the engine range extender, and improving the accuracy of disassembly and assembly.

[0017] 5. Convenient height fine-tuning: The generator height can be finely adjusted through the adjustment mechanism. By rotating the top rod, the external thread and the threaded connection between the top rod and the threaded hole of the base are used to achieve lifting and lowering. The operation is simple and can better meet the height requirements during the disassembly and assembly of the engine range extender.

[0018] In summary, this engine range extender manual disassembly and assembly tool cart, through a series of precise mechanism and component designs, enables rapid and accurate disassembly, assembly, and fixation of the engine, greatly improving work efficiency and disassembly accuracy. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is the left view of this utility model;

[0022] Figure 4 This is a schematic diagram of the lead screw transmission mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjustment mechanism of this utility model. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0025] This embodiment describes a manual disassembly and assembly tool cart for an engine range extender, including a frame 1, an adjustment mechanism 5, a moving platform 4, a generator mounting plate 1 6, a nut bracket 8, an engine mounting plate 2 9, an engine pressure plate mechanism 10, a lead screw transmission mechanism 11, two universal brake wheels 2, two fixed wheels 3, two linear slide rail assemblies 7, multiple support rods 1 24 and multiple support rods 25.

[0026] The lower end of the frame 1 is provided with two universal brake wheels 2 and two fixed wheels 3. The upper end of the frame 1 is provided with two linear slide rail assemblies 7. The two linear slide rail assemblies 7 are both connected to the lower end of the moving platform 4. The upper end of the moving platform 4 is provided with an adjustment mechanism 5. The other upper end of the moving platform 4 is provided with a vertically arranged generator mounting plate 6. The generator mounting plate 6 is provided with multiple horizontal support rods 24. The lower end of the moving platform 4 is connected to the lead screw transmission mechanism 11 through a nut bracket 8. The lead screw transmission mechanism 11 is fixedly connected to the upper end of the frame 1 and is set between the two linear slide rail assemblies 7. The other upper end of the frame 1 is provided with an engine mounting plate 9. The engine mounting plate 9 is provided with multiple support rods 25. The engine mounting plate 9 is used in conjunction with multiple engine pressure plate mechanisms 10. The multiple engine pressure plate mechanisms 10 are all fixed on the frame 1.

[0027] The lead screw transmission mechanism 11 includes a trapezoidal lead screw 12, a lead screw nut 13, a handwheel 15, a semi-circular key 16, a bolt 17, a washer 18, and two bearing seats 14.

[0028] The trapezoidal lead screw 12 is rotatably connected to the corresponding bearing seats 14 at both ends. Both bearing seats 14 are fixedly connected to the frame 1. The lead screw nut 13 is threadedly connected to the trapezoidal lead screw 12 and is disposed between the two bearing seats 14. The lead screw nut 13 is fixedly connected to the nut bracket 8. The trapezoidal lead screw 12 is inserted into the handwheel 15 through a semi-circular key 16 for positioning and fixedly connected through a bolt 17. A washer 18 is fitted on the bolt 17.

[0029] The adjustment mechanism 5 includes a top rod 19 and a base 20;

[0030] The base 20 is fixedly connected to the upper end of the mobile platform 4 and is correspondingly set with the generator mounting plate 6. The base 20 is provided with a threaded hole, and the outer wall of the top rod 19 is provided with an external thread. The top rod 19 is threadedly connected to the threaded hole.

[0031] Each of the engine pressure plate mechanisms 10 includes an internally threaded tube 21, a pressure plate 22, and a bolt 23; the internally threaded tube 21 is vertically arranged and fixedly connected to the vehicle frame 1, the pressure plate 22 has an elongated hole along its length, and the bolt 23 rotates through the elongated hole and is threadedly connected to the internally threaded tube 21.

[0032] When using this utility model, firstly, the engine is placed on the engine mounting plate 29. At this time, multiple support rods 25 are connected to the cylinder block support holes of the engine, providing a preliminary positioning and support for the engine.

[0033] Next, the engine is fixed by multiple engine pressure plate mechanisms 10. The internal threaded tube 21 is set vertically and fixedly connected to the frame 1. The pressure plate 22 is engaged with the bolt 23 through the long hole provided along its length. The bolt 23 rotates through the long hole and is threadedly connected to the internal threaded tube 21. By adjusting the position of the pressure plate 22 on the long hole and tightening it with the bolt 23, the engine can be firmly fixed.

[0034] Then, the position of the moving platform 4 is adjusted by the lead screw transmission mechanism 11, and the handwheel 15 is turned to make the trapezoidal lead screw 12 rotate. Since the lead screw nut 13 is threadedly connected to the trapezoidal lead screw 12, the lead screw nut 13 will move horizontally. The lead screw nut 13 is connected to the moving platform 4 through the nut bracket 8, so it can drive the moving platform 4 to move along the linear slide rail assembly 7 and move closer to the engine.

[0035] As the mobile platform 4 approaches the engine, multiple support rods 24 on the vertically mounted generator mounting plate 6 at its upper end will dock with the engine rotor. The main function of these support rods 24 is to limit the magnetic torsional moment between the stator and the rotor, ensuring that an appropriate fit clearance is maintained when the stator and the rotor are installed, thereby ensuring the normal operation of the engine range extender.

[0036] Finally, the height of the generator is finely adjusted by adjusting mechanism 5. By rotating the top rod 19, which has external threads on its outer wall and is threadedly connected to the threaded hole on the base 20, the height of the generator can be finely adjusted.

[0037] In summary, this engine range extender manual disassembly and assembly tool cart, through a series of precise mechanism and component designs, enables rapid and accurate disassembly, assembly, and fixation of the engine, greatly improving work efficiency and disassembly accuracy.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A manual disassembly and assembly tool cart for engine range extenders, characterized in that: Includes a frame (1), an adjustment mechanism (5), a moving platform (4), a generator mounting plate one (6), a nut bracket (8), an engine mounting plate two (9), an engine pressure plate mechanism (10), a screw drive mechanism (11), two universal brake wheels (2), two fixed wheels (3), two linear slide rail assemblies (7), multiple support rods one (24) and multiple support rods two (25); The lower end of the frame (1) is provided with two universal brake wheels (2) and two fixed wheels (3). The upper end of the frame (1) is provided with two linear slide rail assemblies (7), both of which are connected to the lower end of the moving platform (4). The upper end of the moving platform (4) is provided with an adjustment mechanism (5), and the other upper end of the moving platform (4) is provided with a vertically mounted generator mounting plate (6). The generator mounting plate (6) is horizontally provided with multiple support rods (24). The lower end of the moving platform (4)... The end is connected to the lead screw transmission mechanism (11) through the nut bracket (8). The lead screw transmission mechanism (11) is fixedly connected to the upper end of the frame (1) and is set between two linear slide rail assemblies (7). An engine mounting plate two (9) is provided on the other side of the upper end of the frame (1). Multiple support rods two (25) are provided on the engine mounting plate two (9). The engine mounting plate two (9) is used in conjunction with multiple engine pressure plate mechanisms (10). The multiple engine pressure plate mechanisms (10) are all fixed on the frame (1).

2. The engine range extender manual disassembly and assembly tool cart according to claim 1, characterized in that: The lead screw transmission mechanism (11) includes a trapezoidal lead screw (12), a lead screw nut (13), a handwheel (15), a semi-circular key (16), a bolt (17), a washer (18), and two bearing seats (14); The trapezoidal lead screw (12) is rotatably connected to the corresponding bearing seats (14) at both ends. Both bearing seats (14) are fixedly connected to the frame (1). The lead screw nut (13) is threadedly connected to the trapezoidal lead screw (12) and is located between the two bearing seats (14). The lead screw nut (13) is fixedly connected to the nut bracket (8). The trapezoidal lead screw (12) is inserted into the handwheel (15) through a semi-circular key (16) and fixedly connected through a bolt (17). A washer (18) is fitted on the bolt (17).

3. The engine range extender manual disassembly and assembly tool cart according to claim 1, characterized in that: The adjustment mechanism (5) includes a top rod (19) and a base (20); The base (20) is fixedly connected to the upper end of the mobile platform (4) and is correspondingly set with the generator mounting plate (6). The base (20) is provided with a threaded hole, and the outer wall of the top rod (19) is provided with an external thread. The top rod (19) is threadedly connected to the threaded hole.

4. The engine range extender manual disassembly and assembly tool cart according to claim 1, characterized in that: Each of the engine pressure plate mechanisms (10) includes an internal threaded tube (21), a pressure plate (22), and a bolt (23); the internal threaded tube (21) is vertically arranged and fixedly connected to the frame (1); the pressure plate (22) has an elongated hole along its length; the bolt (23) rotates through the elongated hole and is threadedly connected to the internal threaded tube (21).

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