Front-end transmission wheel train of automobile transverse engine

Abstract

The utility model provides a front end transmission wheel train of an automobile transverse engine, and belongs to the technical field of automobile engine structures. According to the system, through the structural design of the transmission belt tensioning part, the problems that in the prior art, a front-end transmission wheel train of an automobile engine is relatively complex in structure, large in operation difficulty during installation and maintenance and low in efficiency are solved. The transmission belt tensioning part comprises a second adjusting column, one side of the generator is movably connected, and the other side of the generator is fixedly provided with the second adjusting column; the adjusting plate is fixedly connected to the water pump, a second adjusting groove is formed in the adjusting plate, and the second adjusting column is movably installed in the second adjusting groove; and the second fixing piece is used for fixedly mounting the generator. One side of the generator is hinged to the engine body, and the second adjusting groove is an arc-shaped groove. When the generator rotates around one side of the generator, the movement track of the second adjusting column is an arc-shaped track along the second adjusting groove.

Description

Technical Field

[0001] This utility model belongs to the field of automotive engine structure technology, and in particular relates to a front-end transmission wheel system for a transversely mounted automotive engine. Background Technology

[0002] For microvans / light commercial vehicles, the engines need to balance economy, low maintenance costs, and reliability, so transversely mounted gasoline engines are generally chosen. The front drive train of this type of engine is the power core of the engine's auxiliary equipment; it is compact in design, functionally integrated, and relatively simple to maintain.

[0003] The front-end drive system transmits the crankshaft's power to the water pump wheel and generator wheel via a drive belt. The water pump wheel drives the coolant circulation, and the engine wheel drives the generator to generate electricity.

[0004] The drive belt tensioner (i.e., tensioning device) of the front drive pulley system is a key component to ensure that the drive belt (such as a multi-ribbed belt or toothed belt) maintains proper tension; it prevents belt slippage, vibration or premature wear by adjusting the belt tension.

[0005] The existing tensioning device for front-end drive pulley systems generally adds a tensioning pulley that contacts the drive belt, and adjusts the tension of the drive belt by rotating or sliding. This type of tensioning pulley requires the cooperation of several other components to achieve the tensioning function, such as hydraulic oil-driven pistons, guide rails, and buckles. This structure is complex, which makes it difficult for operators to operate, whether during assembly in production or after failure in use, resulting in low production or maintenance efficiency. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a front-end transmission gear train for a transversely mounted automobile engine, which solves the problems of relatively complex structure of the front-end transmission gear train of automobile engines, and the high difficulty and low efficiency in installation and maintenance.

[0007] To achieve the above and other related objectives, this utility model provides a front-end drivetrain for a transversely mounted automotive engine, including a drive belt tensioning part for adjusting the tension of the drive belt; the drive belt tensioning part includes:

[0008] The second adjusting column is movably connected to one side of the generator and fixedly installed on the other side;

[0009] An adjusting plate is fixed to the water pump, and a second adjusting groove is provided on it. The second adjusting column is movably installed in the second adjusting groove.

[0010] The second fastener securely mounts the generator.

[0011] As described above, the front drive gear train of a transversely mounted automobile engine according to this utility model has at least the following beneficial effects:

[0012] The front drive train of this transversely mounted engine is movably connected to one side of the generator, while a second adjusting column is fixedly installed on the other side. An adjusting plate is fixedly connected to the water pump, and a second adjusting groove is opened on the adjusting plate. The second adjusting column is movably installed in the second adjusting groove, and the generator is fixedly installed by the second fixing component. This structural design only requires an additional adjusting plate to realize the function of the drive belt tensioner, eliminating the need for additional parts. Moreover, when installing or repairing the drive belt tensioner, the operator only needs to move the motor to the correct position in the second adjusting groove, and then fix the motor with the second fixing component. The operation is simple and does not require additional tools. This solves the problem that the front drive train structure of the existing car engine is relatively complex, and the operation is difficult and inefficient during installation and repair. Attached Figure Description

[0013] Figure 1 The diagram shown is a schematic of the front drive gear train of a transversely mounted automobile engine according to this utility model.

[0014] Figure 2 The diagram shown is a schematic of the front-end driver system of this utility model.

[0015] Figure 3 The diagram shown is a schematic of the timing belt pulley system of this utility model.

[0016] Figure 4 The diagram shown is a schematic of the timing belt tensioning part of this utility model.

[0017] Component designation explanation

[0018] Timing belt pulley system 1, timing belt tensioning part 11, first adjusting column 111, adjusting seat 112, first adjusting groove 113, tensioning wheel 114, first fixing part 115, auxiliary plate 116, positioning hole 117, auxiliary positioning groove 118, support seat 119, timing belt 12, crankshaft timing belt pulley 13, intake pulley 14, exhaust pulley 15, idler pulley 16;

[0019] Front-end transmission wheel system 2, transmission belt tensioning part 21, second adjusting column 211, adjusting plate 212, second adjusting groove 213, second fixing part 215, transmission belt 22, water pump wheel 23, generator wheel 24, crankshaft drive pulley 25. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0021] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0022] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0023] Please see Figure 1 and Figure 2 This utility model provides a front drive train 2 for a transversely mounted automobile engine. The front drive train 2 and the timing belt pulley system 1 form a front drive system and are mounted on the same side of the crankshaft. The timing belt pulley system 1 includes a timing belt tensioning part 11 for adjusting the tension of the timing belt 12, and the front drive train 2 includes a transmission belt tensioning part 21 for adjusting the tension of the transmission belt 22. The following sections will discuss the differences between the timing belt tensioning part 11 and the transmission belt tensioning part 21 and the prior art.

[0024] We will first introduce the timing belt tensioner 11, which includes:

[0025] like Figure 3 and Figure 4 The first adjusting column 111 shown is fixedly installed.

[0026] like Figure 4 The adjustment seat 112 shown has a first adjustment groove 113, which is movably fitted onto the first adjustment column 111.

[0027] like Figure 4 The tension wheel 114 shown is rotatably mounted on the adjusting seat 112, and the outer wall of the tension wheel 114 is engaged with the transmission belt 22.

[0028] like Figure 4 The first fixing member 115 shown securely installs the adjusting seat 112.

[0029] The timing belt tensioner 11 described above is not only simple in structure, but also easy to install or repair. The operator only needs to use a pry bar to hold the tensioner 114, and the tensioner 114, along with the adjusting seat 112, moves along the length of the adjusting groove to the correct position. At this time, the first adjusting post 111 acts as a limit. Then the first fixing part 115 can be installed. The operation is simple and does not require special tools.

[0030] We will now describe the transmission belt tensioner 21, which includes:

[0031] like Figure 1 The second adjusting column 211 shown is movably connected to one side of the generator and fixedly installed on the other side.

[0032] like Figure 1 The adjustment plate 212 shown is fixed to the water pump and has a second adjustment groove 213. The second adjustment column 211 is movably installed in the second adjustment groove 213.

[0033] like Figure 1 The second fastener 215 shown is used to securely install the generator.

[0034] The aforementioned transmission belt tensioning part 21 only requires the addition of an adjustment plate 212 to achieve the function of the transmission belt tensioning part 21, without the need for additional parts. At the same time, when installing or repairing the transmission belt tensioning part 21, the operator only needs to turn the motor to move the second adjustment column 211 to the correct position in the second adjustment groove 213, and then fix the motor by the second fixing part 215. The operation is simple and does not require additional tools.

[0035] In summary, the structural design of the timing belt tensioner 11 and the drive belt tensioner 21 ensures that the front-end drive system of the transverse engine of this vehicle no longer faces the problem of the relatively complex structure of the tensioning device of the existing automobile engine, which requires more auxiliary tools for installation and maintenance.

[0036] In another implementation, please refer to Figure 3 and Figure 4An auxiliary plate 116 is fixed to the bottom side of the adjusting seat 112. A positioning hole 117 is provided on the auxiliary plate 116. The movement trajectory of the adjusting seat 112 is an arc movement with the center of the positioning hole 117 as the center. That is, the tensioning wheel 114 moves in an arc with the center of the positioning hole 117 as the center. When the operator uses a common workshop pry bar, the positioning hole 117 is the fulcrum of the pry bar, and the operator can more easily adjust the tensioning wheel 114 into place. A positioning pin can be installed in the positioning hole 117 to connect the auxiliary plate 116 and the engine body.

[0037] In another implementation, please refer to the figure. Figure 3 and Figure 4 The auxiliary plate 116 is also provided with an auxiliary positioning groove 118. The auxiliary positioning groove 118 and the positioning hole 117 are located at both ends of the auxiliary plate 116, respectively. When the operator installs the timing belt tensioner 11, a tension spring can be used to assist in the installation. One end of the tension spring hooks into the auxiliary positioning groove 118, and the other end of the tension spring hooks into a place on the engine body that can be hooked, such as a bolt for fastening. The auxiliary positioning groove 118 is simple to process, but it can play a very good auxiliary role during installation.

[0038] In another implementation, please refer to Figure 4 The tensioning wheel 114 is rotatably mounted on the adjusting seat 112 via a bearing to minimize the friction of the tensioning wheel 114.

[0039] In another implementation, please refer to the figure. Figure 3 and Figure 4 The timing belt tensioner 11 also includes a support seat 119, which is fixedly mounted on the engine body. The first adjusting column 111 is fixedly mounted on the support seat 119. The upper part of the first adjusting column 111 is provided with threads, and the first fixing member 115 is a nut. The adjusting seat 112 is fixed by tightening the nut on the first adjusting column 111. This embodiment provides a relatively stable structural form for fixing the first adjusting column 111 with the first fixing member 115.

[0040] In another implementation, please refer to the figure. Figure 1 One side of the generator is hinged to the engine body, and the second adjustment groove 213 is an arc-shaped groove. When the generator rotates around one side, the movement trajectory of the second adjustment column 211 is along the arc-shaped trajectory of the second adjustment groove 213. Similarly, this embodiment provides a specific structural form for the rotation of the motor in the transmission belt tensioning part 21. The second adjustment groove 213 is designed as an arc-shaped groove, and the movement trajectory of the second adjustment column 211 is along the arc-shaped trajectory of the second adjustment groove 213. Compared with linear motion, the motion is smoother, easier to achieve, and less prone to interference.

[0041] In another implementation, please refer to Figure 1 Both the second fixing member 215 and the first fixing member 115 are nuts. The second adjusting column 211 is also provided with threads. The generator is fixed by tightening the nut on the second adjusting column 211. The fixing method of the nut is simple, and the nut is a standard part, which is easy to operate during installation or maintenance.

[0042] In another implementation, please refer to Figure 1 and Figure 4 The timing belt 12 is toothed and transmits power from the crankshaft to the intake and exhaust camshafts. The timing belt system 1 also includes: a crankshaft timing belt pulley 13, mounted on the crankshaft and meshing with the timing belt 12, which is the power source; an intake pulley 14, mounted on the intake camshaft and meshing with the timing belt 12, which controls the opening and closing of the intake valves; and an exhaust pulley 15, mounted on the intake camshaft and meshing with the timing belt 12, which controls the opening and closing of the exhaust valves. The timing belt system 1 is the "metronome" of the engine, directly determining the valve timing accuracy and engine life. Its core value lies in low cost, low noise, and lightweight design, but it requires regular maintenance to avoid the risk of belt breakage. At the same time, the timing belt system 1 also drives other auxiliary devices, such as water pumps, generators, and oil pumps.

[0043] In another implementation, please refer to Figure 3 The crankshaft timing pulley 13 has an even number of teeth, specifically 18 teeth; the intake pulley 14 and the exhaust pulley 15 both have twice the number of teeth as the crankshaft timing pulley 13, i.e., 36 teeth; the timing belt 12 has an odd number of teeth, which results in more even force distribution compared to the even-numbered timing belt 12; at the same time, because of the combination of the even-numbered timing belt 12 and the odd-numbered timing belt, the meshing cycle is asymmetrical, which can effectively reduce the risk of resonance.

[0044] In another implementation, please refer to Figure 1 The transverse engine mentioned in this article, like a common transverse engine, is equipped with an engine crankshaft. This crankshaft is responsible for transmitting the engine's power to the water pump impeller and generator, etc. The water pump is equipped with a corresponding water pump impeller 23, and the generator is equipped with a corresponding generator impeller 24. This transmission process requires the use of a drive belt 22. The drive belt 22 used in this embodiment is wedge-shaped, which transmits the power of the crankshaft to the water pump impeller 23 on the water pump and the generator impeller 24 on the generator. The front-end transmission wheel system 2 includes a crankshaft drive pulley 25, which is installed on the crankshaft and cooperates with the drive belt 22, ensuring the reliable realization of the engine's cooling, power supply, and lubrication functions.

[0045] In other implementations, such as Figure 3As shown, the timing belt pulley system 1 also includes an idler pulley 16, which changes the direction of the timing belt 12, reduces friction, and prevents the timing belt 12 from directly wrapping around other components.

[0046] In summary, this utility model, through a structure where a second adjusting column 211 is movably connected to one side of the generator and fixedly installed on the other side, and an adjusting plate 212 is fixedly connected to the water pump, with a second adjusting groove 213 formed on the adjusting plate 212, and the second adjusting column 211 is movably installed in the second adjusting groove 213, and the generator is fixedly installed by the second fixing member 215, achieves the function of the transmission belt tensioning part 21 with only the addition of an adjusting plate 212, eliminating the need for additional parts. Moreover, when installing or maintaining the transmission belt tensioning part 21, the operator only needs to move the motor to allow the second adjusting column 211 to move to the correct position in the second adjusting groove 213, and then fix the motor with the second fixing member 215. The operation is simple and requires no additional tools. It solves the problem that the front-end transmission wheel system structure of automobile engines is relatively complex, making installation and maintenance difficult and inefficient. Therefore, this utility model effectively overcomes the shortcomings of the prior art and has high industrial application value.

[0047] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A front-end drivetrain for a transversely mounted automotive engine, comprising a drive belt tensioning section for adjusting the tension of the drive belt; characterized in that, The transmission belt tensioning part includes: The second adjusting column is movably connected to one side of the generator and fixedly installed on the other side; An adjusting plate is fixed to the water pump, and a second adjusting groove is provided on it. The second adjusting column is movably installed in the second adjusting groove. The second fastener securely mounts the generator.

2. The front drive train of a transversely mounted automobile engine according to claim 1, characterized in that: One side of the generator is hinged to the engine body of the transversely mounted engine of the automobile, and the second adjustment groove is an arc-shaped groove. When the generator rotates around one side, the movement trajectory of the second adjusting column is an arc-shaped trajectory along the second adjusting groove.

3. The front drive train of a transversely mounted automobile engine according to claim 1, characterized in that: The second fixing component is a nut, and the second adjusting column is threaded. The generator is fixed by tightening the nut onto the second adjusting column.

4. The front drive train of a transversely mounted automobile engine according to claim 1, characterized in that: The drive belt is wedge-shaped and transmits the power from the engine crankshaft to the water pump impeller on the water pump and the generator impeller on the generator. It also includes a crankshaft drive pulley, which is mounted on the crankshaft and engages with the drive belt.

5. The front drive train of a transversely mounted automobile engine according to claim 1, characterized in that: The timing belt pulley system is mounted on the same side of the engine crankshaft as the engine timing belt pulley system; the timing belt pulley system includes a timing belt tensioner for adjusting the timing belt tension, the timing belt tensioner including: The first adjusting column is fixedly installed. The adjusting seat has a first adjusting groove, which is movably fitted onto the first adjusting column; The tensioning wheel is rotatably mounted on the adjusting seat, and the outer wall of the tensioning wheel cooperates with the transmission belt; The first fixing component securely installs the adjusting seat.

6. The front drive train of a transversely mounted automobile engine according to claim 5, characterized in that: An auxiliary plate is fixed to the bottom side of the adjusting seat. A positioning hole is provided on the auxiliary plate. The movement trajectory of the adjusting seat is an arc movement with the center of the positioning hole as the center. The auxiliary plate is also provided with an auxiliary positioning groove, and the auxiliary positioning groove and the positioning hole are respectively located at both ends of the auxiliary plate.

7. The front drive train of a transversely mounted automobile engine according to claim 5, characterized in that: The tensioning wheel is rotatably mounted on the adjusting seat via a bearing.

8. The front drive train of a transversely mounted automobile engine according to claim 5, characterized in that: The timing belt tensioning part also includes a support seat, which is fixedly installed on the engine body, and the first adjusting column is fixedly installed on the support seat; The upper part of the first adjusting column is provided with threads, and the first fixing component is a nut; The adjusting seat is fixed by tightening the nut onto the first adjusting column.

9. The front drive train of a transversely mounted automobile engine according to claim 5, characterized in that: The timing belt is toothed and transmits power from the crankshaft to the intake camshaft and exhaust camshaft. The timing belt pulley system also includes: A crankshaft timing belt pulley is mounted on the crankshaft and meshes with the timing belt; An intake pulley is mounted on the intake camshaft and meshes with the timing belt to control the opening and closing of the intake valve; An exhaust pulley is mounted on the intake camshaft and meshes with the timing belt to control the opening and closing of the exhaust valve.

10. The front drive train of a transversely mounted automobile engine according to claim 9, characterized in that: The crankshaft timing pulley has an even number of teeth, the intake pulley and the exhaust pulley each have twice the number of teeth as the crankshaft timing pulley, and the timing belt has an odd number of teeth.

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