Self-adjusting motorcycle engine tensioner

Abstract

The utility model relates to the technical field of motorcycle engine assemblies, and discloses a self-adjusting motorcycle engine tensioner which comprises a mechanical self-adjusting tensioning mechanism, an electric control mechanism is arranged at the bottom end of the mechanical self-adjusting tensioning mechanism, the mechanical self-adjusting tensioning mechanism comprises a base, a sliding groove is formed in the middle of the bottom end of the base, and the electric control mechanism is arranged in the sliding groove. Two limiting strips are fixedly connected to the upper end of the inner side wall of the sliding groove in a front-back symmetry mode, and an adjusting assembly and a tensioning assembly are slidably installed in the sliding groove and the two limiting strips. By arranging the electronic control system, the driving rod can be accurately controlled in real time in combination with sensor signals such as the rotating speed and the load of an engine, the driving rod can rapidly drive the driving screw to rotate, rapid adjustment of the tensioning degree of the tensioner is carried out, the response speed of the tensioner is increased, and adjustment hysteresis is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motorcycle engine assembly technical field, concretely is self -adjusting motorcycle engine tensioner. BACKGROUND

[0002] Self -adjusting motorcycle engine tensioner is the important part in motorcycle engine timing system, and it includes mechanical self -adjusting tensioner, and usually relies on spring, gear and so on mechanical structure to adjust tensioning force. Such as spring type tensioner, utilizes the spring elasticity to push the tensioning wheel or tensioning block. When the chain or the belt is elongated, the spring is further compressed, and the spring elasticity increases, thereby increasing the tensioning force, when the chain or the belt is contracted, the spring elasticity makes the tensioner automatically adjust, keeps the tensioning force balance.

[0003] The existing self -adjusting motorcycle engine tensioner still has the following problems when using: response speed lag, no matter hydraulic or mechanical self -adjusting tensioner, when the engine condition changes sharply, such as from idle speed instantaneously pulls high speed, the adjustment of tensioner can exist certain lag, leads to the tensioning degree of timing chain or belt to appear in short time, influences the power output and stability of engine. UTILITY MODEL CONTENTS

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides self -adjusting motorcycle engine tensioner, solves the problem raised in background art.

[0006] (II) technical scheme

[0007] To realize the above -mentioned purpose, the utility model provides the following technical scheme: self -adjusting motorcycle engine tensioner, including mechanical self -adjusting tensioning mechanism, the mechanical self -adjusting tensioning mechanism bottom end is equipped with electric control mechanism, the mechanical self -adjusting tensioning mechanism includes a base, the base bottom end middle part is equipped with the sliding slot, the sliding slot inner wall upper end is symmetrically fixedly connected with two limit strips, the sliding slot and two limit strips are slidably installed with adjusting assembly and tensioning assembly, the electric control mechanism includes the base bottom end one side symmetrically fixedly connected with two supports, two the support bottom end is fixedly installed with same drive motor, the drive motor other end is provided with control host computer, the adjusting assembly includes a drive screw, the hexagonal groove of drive screw one end is slidably embedded with drive rod, the drive rod one end and drive motor one side drive end between setting up belt transmission mechanism.

[0008] As a further scheme of the utility model: the belt drive mechanism includes one pulley fixedly connected to the driving end of the driving motor on one side, and another pulley fixedly connected to one end of the driving rod, and the two pulleys are connected through a transmission belt sleeved on the outer side.

[0009] As a further scheme of the utility model: the adjusting assembly further includes an adjusting block slidingly connected between the two limiting strips, a through hole is formed in one end of the sliding groove for the driving screw to pass through, a threaded matching ring for the driving screw to be threadedly connected is fixedly connected to one end of the sliding groove and located at the through hole opening, the tensioning assembly further includes a sliding block slidingly connected in the sliding groove, the sliding block and the adjusting block are connected through a spring, a wheel carrier is fixedly connected to the top end of the sliding block, and a strip-shaped groove is formed in the top end of the base for the wheel carrier to move horizontally.

[0010] As a further scheme of the utility model: the tensioning assembly is provided with a pressure sensor, the pressure sensor is fixedly assembled on the outer side of the wheel carrier, a tensioning wheel is rotatably assembled on the outer side of the pressure sensor, and the other end of the control host is provided with a wireless receiver matched with the pressure sensor.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、In the utility model, the electronic control system is configured, sensor signals such as the rotating speed and load of the engine can be combined, the driving rod can be controlled in real time and accurately, the driving rod can drive the driving screw to rotate quickly, the tensioning degree of the tensioner can be adjusted quickly, the response speed of the tensioner is improved, and the adjustment hysteresis is reduced.

[0013] 2、In the utility model, the pressure sensor is arranged on the wheel carrier of the tensioning wheel, the tensioning wheel is rotatably assembled on the outer side of the pressure sensor, the pressure sensor can monitor the pressure change at the tensioning wheel in real time, and the pressure data can be quickly transmitted to the control host of the electric control mechanism, so that the tensioning wheel pressure change can be adjusted quickly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 3 It is the three-dimensional view of the mechanical self-adjusting tensioning mechanism of the utility model;

[0017] Figure 4 It is the three-dimensional view of the electric control mechanism of the utility model.

[0018] In the figure: 1, mechanical self-adjusting tensioning mechanism; 2, electric control mechanism; 11, base; 12, sliding groove; 13, limiting strip; 14, through hole; 15, threaded cooperation ring; 16, driving screw; 17, adjusting block; 18, sliding block; 19, wheel carrier; 110, spring; 111, pressure sensor; 112, tensioning wheel; 21, support; 22, driving motor; 23, control host; 24, wireless receiver; 25, pulley; 26, transmission belt; 27, driving rod. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0020] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Please refer to Figures 1-4The utility model discloses a self -adjusting motorcycle engine tensioner, including mechanical self -adjusting tensioning mechanism 1, mechanical self -adjusting tensioning mechanism 1 bottom end is equipped with electric control mechanism 2, mechanical self -adjusting tensioning mechanism 1 includes a base 11, and the middle part of the bottom end of base 11 is provided with a sliding slot 12, and two limit strips 13 are fixedly connected to the upper end of the inner side wall of sliding slot 12 in a front -to -back symmetry, and the adjusting assembly and the tensioning assembly are slidably installed in sliding slot 12 and two limit strips 13, electric control mechanism 2 includes the base 11 bottom end one side and is fixedly connected with two supports 21 in a front -to -back symmetry, and the bottom end of two supports 21 is fixedly installed with same drive motor 22, and the other end of drive motor 22 is provided with control host computer 23, and the adjusting assembly includes a drive screw 16, and the hexagonal groove of one end of drive screw 16 is slidably embedded with drive rod 27, and the drive rod 27 one end and one side drive end between drive motor 22 are provided with belt transmission mechanism, and the whole is provided with electronic control system, that is, electric control mechanism 2, which can combine the speed, load and other sensor signals of engine, and the drive rod 27 is rotated in real time accurately, and the drive rod 27 can quickly drive drive screw 16 to rotate, and the tensioning degree of tensioner is adjusted quickly, and the response speed of tensioner is improved, and the adjustment hysteresis is reduced.

[0023] The belt transmission mechanism includes a pulley 25 fixedly connected to one side of the drive end of the drive motor 22, and another pulley 25 fixedly connected to one end of the drive rod 27, and the two pulleys 25 are connected by a transmission belt 26 sleeved on the outer side thereof, and the drive motor 22 can drive the drive rod 27 to rotate through the belt transmission mechanism.

[0024] The adjusting assembly further includes an adjusting block 17 slidably connected between the two limit strips 13, and a through hole 14 is formed in one end of the sliding slot 12 for the drive screw 16 to pass through, and a threaded fitting ring 15 is fixedly connected to one end of the sliding slot 12 and located at the opening of the through hole 14 for the drive screw 16 to be threadedly connected, and the tensioning assembly further includes a sliding block 18 slidably connected in the sliding slot 12, and the sliding block 18 and the adjusting block 17 are connected by a spring 110, and a wheel carrier 19 is fixedly connected to the top end of the sliding block 18, and a strip-shaped slot is formed in the top end of the base 11 for the wheel carrier 19 to move horizontally, and the spring 110 can push the sliding block 18, i.e. the wheel carrier 19, to move, and the tensioning wheel 112 is rotatably assembled on the wheel carrier 19, and after a chain or a belt is assembled on the tensioning wheel 112, when the chain or the belt is elongated, the spring 110 is further compressed, the spring force is increased, and thus the tensioning force is increased, and when the chain or the belt is contracted, the spring 110 is automatically adjusted by the spring force to keep the tensioning force balanced, and the drive screw 16 can be driven to rotate by the drive rod 27, and the adjusting block 17 can be moved, and since the adjusting block 17 and the sliding block 18 are connected by the spring 110, the active tensioning degree can be adjusted.

[0025] The tensioning assembly is provided with a pressure sensor 111 fixedly arranged outside the wheel frame 19, a tensioning wheel 112 rotatably arranged outside the pressure sensor 111, and a wireless receiver 24 of the control host 23 matched with the pressure sensor 111, the pressure sensor 111 is arranged on the wheel frame 19 of the tensioning wheel 112, the tensioning wheel 112 is rotatably arranged outside the pressure sensor 111, the pressure sensor 111 can monitor the pressure change of the tensioning wheel 112 in real time and quickly transmit the pressure data to the control host 23 of the electric control mechanism 2, so that the tensioning wheel 112 pressure change can be quickly adjusted.

[0026] The working principle of the utility model is: the spring 110 can push the sliding block 18, that is, the movement of the tensioning wheel 112 rotatably arranged on the wheel frame 19, after the chain or the belt is arranged on the tensioning wheel 112, when the chain or the belt is stretched, the spring 110 is further compressed, the spring force is increased, so that the tensioning force is increased, when the chain or the belt is contracted, the spring 110 spring force makes the tensioner automatically adjust, keeps the tensioning force balance, because the whole is provided with an electronic control system, that is, the electric control mechanism 2, the driving rod 27 can be accurately controlled in real time, that is, the driving motor 22 can drive the driving rod 27 to rotate through the belt transmission mechanism, the driving screw 16 can be driven to rotate through the driving rod 27, the adjusting block 17 can be moved, because the adjusting block 17 and the sliding block 18 are connected through the spring 110, the active tensioning degree can be adjusted, that is, the tensioning degree of the tensioner can be quickly adjusted, the response speed of the tensioner is improved, the adjustment hysteresis is reduced, in addition, the pressure sensor 111 can monitor the pressure change of the tensioning wheel 112 in real time and quickly transmit the pressure data to the control host 23 of the electric control mechanism 2, so that the tensioning wheel 112 pressure change can be quickly adjusted.

[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A self-adjusting motorcycle engine tensioner comprising a mechanical self-adjusting tensioning mechanism (1), the bottom end of which is provided with an electric control mechanism (2); characterized in that The mechanical self-adjusting tensioning mechanism (1) comprises a base (11), the middle of the bottom end of which is provided with a sliding groove (12), the inner side wall of the sliding groove (12) is fixedly connected with two limiting strips (13) in a front-rear symmetrical manner, and the sliding groove (12) and the two limiting strips (13) are slidably connected with an adjusting assembly and a tensioning assembly; The electric control mechanism (2) comprises two brackets (21) fixedly connected to the bottom end of the base (11) in a front-rear symmetrical manner, and the same drive motor (22) is fixedly installed at the bottom end of the two brackets (21), and the drive motor (22) is provided with a control host (23) at the other end; The tensioning assembly is provided with a pressure sensor (111), and the control host (23) is provided with a wireless receiver (24) matched with the pressure sensor (111) at the other end; The adjusting assembly comprises a drive screw (16), and the hexagonal groove at one end of the drive screw (16) is slidably connected with a drive rod (27), and the drive rod (27) is provided with a belt drive mechanism between one end and the drive end of the drive motor (22).

2. A self-adjusting motorcycle engine tensioner as in claim 1, wherein: The belt drive mechanism comprises a pulley (25) fixedly connected to the drive end of the drive motor (22), and the belt drive mechanism further comprises another pulley (25) fixedly connected to one end of the drive rod (27).

3. A self-adjusting motorcycle engine tensioner as in claim 2, wherein: The two pulleys (25) are connected by a transmission belt (26) sleeved on the outer side thereof.

4. The self-adjusting motorcycle engine tensioner of claim 1, wherein: The adjusting assembly further comprises an adjusting block (17) slidably connected between the two limiting strips (13).

5. The self-adjusting motorcycle engine tensioner of claim 1, wherein: One end of the sliding groove (12) is provided with a through hole (14) for the drive screw (16) to pass through, and the sliding groove (12) is fixedly connected with a threaded matching ring (15) for the threaded connection of the drive screw (16) at one end and at the opening of the through hole (14).

6. The self-adjusting motorcycle engine tensioner of claim 1, wherein: The tensioning assembly further comprises a sliding block (18) slidably connected in the sliding groove (12), the sliding block (18) and the adjusting block (17) are connected by a spring (110), the top end of the sliding block (18) is fixedly connected with a wheel carrier (19), and the top end of the base (11) is provided with a strip-shaped groove for the horizontal movement of the wheel carrier (19).

7. The self-adjusting motorcycle engine tensioner of claim 1, wherein: The pressure sensor (111) is fixedly assembled on the outer side of the wheel carrier (19), and the pressure sensor (111) is rotatably assembled with a tensioning wheel (112) on the outer side.

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