CN210178840U - Two-way relevant formula tensioning ware device - Google Patents
Two-way relevant formula tensioning ware device Download PDFInfo
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- CN210178840U CN210178840U CN201920724822.2U CN201920724822U CN210178840U CN 210178840 U CN210178840 U CN 210178840U CN 201920724822 U CN201920724822 U CN 201920724822U CN 210178840 U CN210178840 U CN 210178840U
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Abstract
The utility model belongs to new energy automobile design field especially relates to a two-way relevant formula tensioning ware device. It includes: the base comprises an annular base plate and a pivoting device, and the pivoting device is arranged on the annular base plate; the pivoting device is provided with a first tensioning arm in a matching way, and the first tensioning arm can rotate around the axis line of the pivoting device; the first tensioning arm is provided with a second tensioning arm in a matching way, and the second tensioning arm is pivotally arranged on the first tensioning arm through a bushing; the first tensioning arm and the second tensioning arm are in bidirectional association through a first damping device, one end of the first damping device is connected with the first tensioning arm, and the other end of the first damping device is connected with the second tensioning arm; and a second damping device is also arranged between the first tensioning arm and the base. The utility model discloses the flexible variable that arouses when can realize quick compensation belt elasticity switches rapidly maintains belt tension stably to reduce system's vibration and noise ensure that MGU effectively and work steadily under different modes.
Description
Technical Field
The utility model belongs to new energy automobile design field especially relates to a two-way relevant formula tensioning ware device.
Background
The global energy crisis is deepened continuously, the environmental pollution is aggravated increasingly, and the traditional power is driven by stricter regulations, the technologies of MHEV (48V-BSG), HEV, PHEV, RE, EV, FLEX and the like are adopted gradually, wherein the 48V-BSG can be upgraded on the traditional ICE (internal combustion engine) and the oil saving rate is 10% -14%. Meanwhile, the technology has low cost and short period, and is a widely used technical route for OEMs at home and abroad at present. This technology uses an all-in-one Motor Generator Unit (MGU), a two-way linked tensioner (BSG), and a high performance belt.
BSG accessory drive systems typically have four modes of operation: electric power assisting, starting, energy recovery and automatic starting and stopping are realized, several modes are often switched with each other, the operation condition is complex, and the tightness state is often required to be rapidly switched by belt sections arranged on two sides of the MGU, so that different telescopic variables are generated, and the stability of the belt tension is maintained. Meanwhile, in order to improve NVH (Noise, Vibration, Harshness) performance, a damping device is often required to reduce Vibration, Noise, and the like of the belt segment.
In order to solve the problems of the existing damping device and prolong the service life, two unidirectional automatic tensioners with damping mechanisms are usually adopted in the traditional BSG accessory drive system. The method meets the requirement of maintaining stable tension of the belt to a certain extent, but has the following disadvantages: the two tensioners are high in cost, the belt tension of an accessory system is high, the swing amplitude of the tensioners is large, the output torque attenuation is fast, the service life is short, NVH complaints are many, and the design service life cannot be met; when the MGU is used as a starting motor, the tight edge tension is abnormally large, and the service life of a pulley bearing is influenced if the wrap angle of the tight edge tensioner is not limited; during the four mode transition of the MGU, the tight and slack strand lengths change very quickly and the two independent tensioners do not compensate quickly to ensure the proper tension required by the system.
For example, the patent of the invention of the bidirectional tensioner applied to the BSG gear train and the automobile engine system, which is disclosed by the Chinese patent office in 2019, 1, 18 and the invention is granted with the publication number of CN106122400B, the tensioner adopts two tensioner arms which are arranged in a swinging mode, the tensioner arms are connected by a torsion spring to generate elastic tension, the two sides of the motor are tensioned, and the two sides of the motor are suitable for the interchange of the elastic sides of the transmission belt in different working states. But their tensioner has limited speed response and limited tensioner arm stability.
Disclosure of Invention
For solving current tensioning ware response speed slow, can't realize quick compensation in order to ensure the required appropriate tension scheduling problem of system, the utility model provides a two-way relevant formula tensioning ware device. It is to achieve the following objectives: firstly, the compensation speed of the belt is improved, the tension stability of the belt is maintained due to the expansion variable caused by the rapid switching of the tightness state of the rapid compensation belt, and the proper tension of the system can be ensured in the running process; secondly, the shock of the tensioning arm is absorbed and delayed through the arrangement of the damping device, the vibration and the noise of the system are reduced, the stability of the whole device is ensured, and the service life is prolonged; thirdly, the whole device is convenient to fix and install, and the applicability and the practicability are improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a two-way associative tensioner device comprising:
the base comprises an annular base plate and a pivoting device, and the pivoting device is arranged on the annular base plate;
the pivoting device is provided with a first tensioning arm in a matching way, and the first tensioning arm can rotate around the axis line of the pivoting device;
the first tensioning arm is provided with a second tensioning arm in a matching way, and the second tensioning arm is pivotally arranged on the first tensioning arm through a bushing;
the number of the bushings is two, namely a first bushing and a second bushing;
the first tensioning arm and the second tensioning arm are in bidirectional association through a first damping device, one end of the first damping device is connected with the first tensioning arm, and the other end of the first damping device is connected with the second tensioning arm;
and a second damping device is also arranged between the first tensioning arm and the base.
Preferably, the pivoting device comprises a hollow circular truncated cone fixedly arranged on the upper end surface of the annular base plate and a pre-tightening circular truncated cone fixedly arranged on the upper end surface of the hollow circular truncated cone; the hollow round table and the pre-tightening round table are equal in inner diameter and are coaxially arranged.
Preferably, the second damping device comprises a pre-tightening bushing, a damping plate, a first cover plate and a spring element; the inner circular surface of the pre-tightening bush is in pivot fit with the outer end surface of the hollow circular truncated cone of the base pivot device in a coaxial manner; the damping plate, the first cover plate and the spring part are hollow in the middle and are respectively provided with a through hole which is coaxially matched with the outer circular surface of the hollow circular truncated cone of the base, and the inner diameters of the through holes are equal; the damping plate is arranged between the first cover plate and the base of the first tensioning arm; the first cover plate is sleeved between the spring part and the damping plate; the spring element is any one of a belleville spring or a wave spring, is sleeved between the annular base plate and the first cover plate of the base in a pre-compression state, and generates continuous axial positive pressure.
Preferably, the first tensioning arm comprises a base plate rotatable about the base pivot, a first boss to mount the first tensioning wheel, a second boss to connect the first damping device and a third boss to mount the second tensioning arm; the outer edge of the bottom plate is in a triangular ring shape, and the inner circular surface of the bottom plate is coaxially sleeved on the outer circular surface of the pre-tightening circular table of the base and can rotate around the center of the base pivoting device; the upper end face of the bottom plate is circumferentially and uniformly provided with a first boss, a second boss and a third boss.
Preferably, the second tensioning arm is divided into a first force arm and a second force arm, the inner ends of the first force arm and the second force arm are connected, a pivot hole is formed in the joint, the bushing is sleeved on the pivot hole, and the first tensioning arm is matched with the third boss of the first tensioning arm through the bushing installed on the pivot hole to realize pivotable connection; the outer end of the first force arm is provided with a tensioning arm connecting hole, and the outer end of the second force arm is provided with a tensioning wheel mounting platform.
Preferably, the first damping rotating shaft comprises a hydraulic element and a spiral spring; the two ends of the hydraulic component are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole is connected with the second boss of the first tensioning arm in a pivoting mode through a bolt, and the second mounting hole is connected with the tensioning arm connecting hole in the first force arm of the second tensioning arm in a pivoting mode through a bolt.
Preferably, the first bushing and the second bushing are arranged opposite to each other up and down and are pivotally mounted between the second tensioning arm pivot hole and the third boss of the first tensioning arm; the first bushing and the second bushing are identical in shape and size, the cross sections of the first bushing and the second bushing are L-shaped, and the symmetric centers of the first bushing and the second bushing are superposed with the axial line of the third boss of the first tensioning arm; the first bushing and the second bushing are interference mounted between the pivot hole and the third boss.
Preferably, a first boss of the first tensioning arm is provided with a first tensioning wheel which can rotate relative to the axial lead of the first boss; a second tensioning wheel capable of rotating relative to the tensioning wheel mounting table is arranged on the tensioning wheel mounting table of the second tensioning arm; the upper end faces of the first tensioning wheel and the second tensioning wheel are flush.
Preferably, the annular base plate is provided with a through hole matched with the MGU motor casing and is fixedly installed on the MGU casing through a bolt.
The utility model has the advantages that:
1) the utility model discloses two-way relevant formula tensioning ware device can realize that the quick compensation belt maintains belt tension stably owing to the flexible variable that arouses when the elasticity state switches rapidly, reduces the risk of skidding to provide abundant damping torque in time through two damping device, absorb and postpone the impact of tensioning arm, reduce systematic vibration and noise, thereby guarantee MGU effectively and work steadily under different modes, improve car NVH performance and the dynamic response of system;
2) the base of this scheme passes through the bolt fastening, and the spatial arrangement of being convenient for to can be through changing the engine front end annex train overall arrangement of bolt hole position with the adaptation difference, thereby help optimizing reasonable overall arrangement and vehicle focus overall arrangement in the engine compartment, impel the lightweight process of car.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded view of the component of FIG. 1;
FIG. 3 is a schematic structural view of a first tensioning arm;
FIG. 4 is a schematic structural view of a base;
FIG. 5 is a schematic diagram of a second tensioning arm;
FIG. 6 is a schematic cross-sectional view of a middle portion of a second damping device;
FIG. 7 is a schematic representation of a BSG train in an automatic start stop mode or an energy recovery motor mode;
FIG. 8 is a schematic representation of the BSG train in a starter motor mode or a boost mode;
in the figure: the tensioner device comprises a bidirectional associated tensioner device 1, a load wheel 2, a belt 3, a driving wheel 4, a base 20, an annular base plate 21, a pivoting device 22, a hollow circular truncated cone 23, a pre-tightening circular truncated cone 24, a first tensioning arm 30, a first boss 31, a bottom plate 32, a second boss 33, a third boss 34, a first damping device 40, a first mounting hole 41, a hydraulic element 42, a spiral spring 43, a second mounting hole 44, a second tensioning arm 50, a press ring 51, a first bushing 52, a second bushing 53, a tensioning arm connecting hole 54, a first force arm 55, a pivoting hole 56, a second force arm 57, a tensioning wheel mounting table 58, a second tensioning wheel 60, a second damping device 70, a second cover plate 71, a pre-tightening bushing 72, a damping plate 73, a first cover plate 74, a spring piece 75 and a first tensioning wheel 80.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Furthermore, the embodiments of the invention referred to in the following description are generally only examples of a part of the invention, and not all examples, and it is obvious that various changes and modifications may be made to the invention by those skilled in the art without departing from the spirit and scope of the invention, so that the invention is intended to include these changes and modifications if they fall within the scope of the claims and their equivalents. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
Examples
A two-way associative tensioner device 1 as shown in figures 1 to 6, comprising:
the base 20 is used for carrying and mounting various components and comprises an annular base plate 21 and a pivoting device 22;
a through hole matched with the MGU motor shell is hollowed in the middle of the annular base plate 21 and fixed on the MGU motor shell through a bolt, and four rectangular limiting grooves with the same shape are evenly distributed on the outer edge of the annular base plate 21;
the pivoting device 22 is arranged on the upper end face of the annular base plate 21 and consists of a pre-tightening circular truncated cone 24 and a hollow circular truncated cone 23, the hollow circular truncated cone 23 is arranged on the upper end face of the annular base plate 21 and is fixedly installed, and the pre-tightening circular truncated cone 24 is fixedly installed on the upper end face of the hollow circular truncated cone 23;
the pre-tightening round platform 24 and the hollow round platform 23 are coaxially arranged and have the same inner diameter, and the outer diameter of the pre-tightening round platform 24 is smaller than that of the hollow round platform 23;
the first tensioning arm 30 is sleeved on the pivoting device 22, and the first tensioning arm 30 can rotate around the axis of the pivoting device 22;
the first tensioning arm 30 comprises a bottom plate 32 capable of rotating around the center of the base pivoting device 22, a first boss 31 for mounting the first tensioning wheel 80, a second boss 33 for connecting the first damping device 70 and a third boss 34 for mounting the second tensioning arm 50, the bottom plate 32 is used for being mounted in a sleeving manner by matching with the pivoting device 22, an inner circular surface of the bottom plate coaxially sleeves the outer circular surface of the base pre-tightening circular table 24 and can rotate around the center of the base pivoting device 22;
the outer edge of the bottom plate 32 is in a triangular ring shape, the lower end face of the bottom plate is coaxially matched with the damping plate 73, the first boss 31, the second boss 33 and the third boss 34 are uniformly arranged in the circumferential direction, the three bosses are all arranged on the upper end face of the bottom plate 32, and the base plate is provided with a through hole matched with the pre-tightening round table 24;
the horizontal cross sections of the first boss 31, the second boss 33 and the third boss 34 are all circles;
the first boss 31 is provided with a first tensioning wheel 80 which can rotate relative to the axial lead of the first boss 31, and the second boss 33 is pivotably connected with the first mounting hole 41 of the first damping device 40 through a bolt;
the second tensioning arm 50 is sleeved on the third boss 34 of the first tensioning arm 30, and the second tensioning arm 50 can rotate relative to the center of the third boss 34;
the second tensioning arm 50 is a long special-shaped piece as shown in fig. 5, the second tensioning arm 50 is divided into a first tensioning arm 55 and a second tensioning arm 57 along the length direction thereof, the inner ends of the first tensioning arm 55 and the second tensioning arm 57 are connected with each other, a through hole type pivot hole 56 is arranged at the joint of the inner ends, a tensioning arm connecting hole 54 is arranged at the outer end of the first tensioning arm 55, and a tensioning wheel mounting platform 58 is arranged at the outer end of the second tensioning arm 57;
the second tensioning arm 50 is pivotally mounted through the first bushing 52 and the second bushing 53 mounted in the pivot hole 56, and the third boss 34 of the first tensioning arm 30, and after mounting, the second tensioning arm 50 can rotate relative to the center of the third boss 34 of the first tensioning arm 30;
the first bushing 52 and the second bushing 53 have the same shape and size, and have an L-shaped cross section, and the centers of symmetry of the first bushing 52 and the second bushing coincide with the axis of the third boss 34 of the first tensioning arm 30, and then are pivotally sleeved between the third boss 34 of the first tensioning arm 30 and the pivot hole 56 of the second tensioning arm 50; the first bush 52 and the second bush 53 are oppositely arranged up and down, the upper end face of the flange of the first bush 52 is matched with the supporting surface of the third boss 34 of the first tensioning arm, and the upper end face of the flange of the second bush 53 is matched with the end face of a compression ring 51;
the press ring 51 is a cylinder with a through hole, and is used for realizing the axial limit of the first bush 52 and the second bush 53;
a second tensioning wheel 60 which can rotate relative to the tensioning wheel mounting platform 58 is arranged on the tensioning wheel mounting platform 58;
the first damping means 40 comprises a hydraulic element 42 and a helical spring 43, the first damping means 40 being capable of generating a damping force and a spring force for absorbing and retarding the vibrational impact of the tensioning arm;
the hydraulic component 42 is a piston type hydraulic damping component, a first mounting hole 41 and a second mounting hole 44 are respectively arranged at two ends of the hydraulic component 42, the first mounting hole 41 is connected with the second boss 33 of the first tensioning arm 30 in a pivoting mode through a bolt, and the second mounting hole 44 is connected with the tensioning arm connecting hole 54 on the first force arm 55 of the second tensioning arm 50 in a pivoting mode through a bolt;
the coil spring 43 is mounted between the first mounting hole 41 and the second mounting hole 44 of the hydraulic component 42 in a pre-compressed state at the time of assembly;
the first tensioning arm 30 and the second tensioning arm 50 are in a bidirectional relationship by means of a first damping device 40, and a damping friction torque and a spring torque are obtained;
the second damping device 70 comprises a pre-tightening bushing 72, a damping plate 73, a first cover plate 74 and a spring element 75 in sequence from top to bottom, wherein the elastic element is used for continuously generating positive axial pressure between the base 20 and the first tensioning arm 30;
the spring element 75 is preferably any one of a wave spring or a belleville spring, and as shown in fig. 2, the spring element 75 is a wave spring;
the inner circular surface of the pre-tightening bush 72 and the outer circular surface of the hollow circular truncated cone 23 of the pivoting device 22 of the base 20 are in coaxial pivoting fit, and the flange surface and the outer circular surface of the pre-tightening bush 72 are respectively matched with the upper end surface and the inner circular surface of the bottom plate 32 of the first tensioning arm 30;
the outer edge of the first cover plate 74 is provided with four rectangular bosses which are the same in shape and size and protrude downwards, the rectangular bosses are matched with the limiting grooves on the annular base plate 21 of the base 20, the middle part of the first cover plate 74 is hollow, and the end surface of the inner ring of the first cover plate is in concentric fit with the end surface of the outer ring of the hollow circular truncated cone 23 of the base 20;
the damping plate 73 is arranged between the first cover plate 74 and the base of the first tensioning arm 30, and the damping plate 73 is made of wear-resistant materials and is used for increasing friction force and damping force;
the spring member 75, which in this embodiment is a wave spring, is disposed in a pre-compressed state between the annular base plate 21 of the base 20 and the first cover plate 74 to generate a continuous positive axial pressure;
the pre-tightening bush 72 is in interference fit with the hollow circular truncated cone 23 of the pivoting device 22 of the base 20, the inner circle end face of the pre-tightening bush 72 is in interference fit with the outer circle end face of the hollow circular truncated cone 23, the shaft shoulder and the outer circle end face of the pre-tightening bush 72 are in interference fit with the end face of the first tensioning arm 30, namely the outer circle end face and the shaft shoulder end face of the pre-tightening bush 72 are in interference fit with the inner circle end face and the upper end face of the bottom plate 32 of the second tensioning arm 50, and the lower end face of the bottom plate 32 of the;
the upper end of the pre-tightening bush 72 is also provided with a second cover plate 71, the second cover plate 71 is a cylinder with a through hole and used for realizing axial limiting of the pre-tightening bush 72, and the inner circle end surface of the second cover plate 71 is matched with the outer circle end surface of the pre-tightening circular truncated cone 24;
when the second damping device 70 is in operation: the wave spring is firstly installed between the annular base plate 21 of the base 20 and the first cover plate 74 in a pre-compressed state, and can generate continuous pre-tightening force; when the integrated two-way correlated tensioner device 1 works, the damping plate 73 and the pre-tightening bushing 72 can rotate relative to the bottom plate 32 of the first tensioning arm 30 and the first cover plate 74 of the second damping device 70, and generate frictional resistance under the pre-tightening force of the wave spring to form frictional damping, so that the wave spring can compensate the wear variation of the damping plate 73, the flange surface of the pre-tightening bushing 72 and the bottom plate 32 of the first tensioning arm 30, and ensure that continuous positive pressure can be generated.
The upper end surfaces of the first tensioning wheel 80 and the second tensioning wheel 60 are flush, and the two end surfaces can be always kept on the same plane in work and are parallel to the end surface of the annular base plate 21 of the base 20.
When in use:
as shown in fig. 7 and 8, it is a gear train layout diagram of a typical FEAD system (front end accessory drive system) in a static state, the system is composed of a driving wheel 4 (such as a crank wheel), a belt 3, a load wheel 2 (such as an air conditioner belt wheel), an MGU motor and a two-way associated tensioner device 1, when the FEAD is in operation, the two-way associated tensioner device 1 can quickly compensate the stretching variable of the belt 3 on both sides of the MGU motor, maintain the proper tension of the belt 3, and ensure the efficient switching and stable operation of the whole system under different modes;
four kinds of operating modes of MGU motor often need switch each other, and operating condition is complicated, and when the 3 sections of belt of MGU motor both sides often need switch the elasticity state rapidly, this can cause very big impact to the system, influence system's stability, in order to solve this problem, the utility model discloses well two-way relevant formula tensioning ware device 1 guarantees that the tension of 3 sections of belt of MGU motor both sides belt can obtain the compensation rapidly, maintains stably to arrange first damping device 40 and second damping device 70, the vibration of decay system improves the NVH performance, wherein, this two-way relevant formula tensioning ware device 1's theory of operation is as follows:
when the motor is in an automatic start-stop mode or an energy recovery mode, the MGU motor serves as a driving part, the belt section 3 on the left side of the MGU motor is a tight edge, and the belt section 3 on the right side of the MGU motor is a loose edge. At this time, the first tensioner pulley 80 of the first tensioner arm 30 is under tension from the tight-side belt 3, moving in a direction away from the center of the MGU motor, pushing the base plate 32 of the first tensioner arm 30 to rotate about the center of the hollow circular truncated cone 23 of the pivot unit 22 of the base 20, and under the link effect of the first damping unit 40, pushing the second tensioner arm 50 to rotate about the center of the third boss 34 of the first tensioner arm 30, and then the second tensioner pulley 60 on the second tensioner arm 50 biases the right belt 3 band of the MGU motor to increase the tension of the band appropriately.
When the motor is in a starting mode or an electric power-assisted mode, the MGU motor serves as a driven part, the belt section of the left side belt 3 is a loose edge, and the belt section of the right side belt 3 is a tight edge. At this time, the second tensioning pulley 60 of the second tensioning arm 50 is subjected to the tension of the belt 3, moves in a direction away from the center of the MGU motor, pushes the second tensioning arm 50 to rotate around the center of the third boss 34 of the first tensioning arm 30, and pushes the bottom plate 32 of the first tensioning arm 30 to rotate around the center of the hollow round table 23 of the pivoting means 22 of the base 20 under the link effect of the first damping means 40, and then the first tensioning wheel 80 mounted on the first boss 31 of the first tensioning arm 30 biases the left side belt 3 band segment of the MGU motor to increase the tension of the segment appropriately.
Claims (9)
1. A two-way associative tensioner device, comprising:
the base comprises an annular base plate and a pivoting device, and the pivoting device is arranged on the annular base plate;
the pivoting device is provided with a first tensioning arm in a matching way, and the first tensioning arm can rotate around the axis line of the pivoting device;
the first tensioning arm is provided with a second tensioning arm in a matching way, and the second tensioning arm is pivotally arranged on the first tensioning arm through a bushing;
the number of the bushings is two, namely a first bushing and a second bushing;
the first tensioning arm and the second tensioning arm are in bidirectional association through a first damping device, one end of the first damping device is connected with the first tensioning arm, and the other end of the first damping device is connected with the second tensioning arm;
and a second damping device is also arranged between the first tensioning arm and the base.
2. The two-way associative tensioner device according to claim 1, wherein said pivoting means comprises a hollow truncated cone fixedly mounted on an upper end surface of said annular base plate and a pre-tightening truncated cone fixedly mounted on an upper end surface of said hollow truncated cone; the hollow round table and the pre-tightening round table are equal in inner diameter and are coaxially arranged.
3. A two way associative tensioner device according to claim 2, wherein said second damping means comprises a preloaded bushing, a damping plate, a first cover plate and a spring member; the inner circular surface of the pre-tightening bush is in pivot fit with the outer end surface of the hollow circular truncated cone of the base pivot device in a coaxial manner; the damping plate, the first cover plate and the spring part are hollow in the middle and are respectively provided with a through hole which is coaxially matched with the outer circular surface of the hollow circular truncated cone of the base, and the inner diameters of the through holes are equal; the damping plate is arranged between the first cover plate and the base of the first tensioning arm; the first cover plate is sleeved between the spring part and the damping plate; the spring element is any one of a belleville spring or a wave spring, is sleeved between the annular base plate and the first cover plate of the base in a pre-compression state, and generates continuous axial positive pressure.
4. A two way associative tensioner device according to claim 1, wherein said first tensioning arm includes a base plate rotatable about said base pivot means center, a first boss for mounting a first tensioning wheel, a second boss for coupling to a first damping means, and a third boss for mounting a second tensioning arm; the outer edge of the bottom plate is in a triangular ring shape, and the inner circular surface of the bottom plate is coaxially sleeved on the outer circular surface of the pre-tightening circular table of the base and can rotate around the center of the base pivoting device; the upper end face of the bottom plate is circumferentially and uniformly provided with a first boss, a second boss and a third boss.
5. The device of claim 4, wherein the second tensioning arm is divided into a first force arm and a second force arm, the inner ends of the first force arm and the second force arm are connected, a pivot hole is formed at the joint, a bushing is sleeved on the pivot hole, and the first tensioning arm is in pivotable connection with the third boss of the first tensioning arm through the bushing installed on the pivot hole; the outer end of the first force arm is provided with a tensioning arm connecting hole, and the outer end of the second force arm is provided with a tensioning wheel mounting platform.
6. A two way associative tensioner device according to claim 5, wherein said first damping spindle comprises a hydraulic element and a coil spring; the two ends of the hydraulic component are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole is connected with the second boss of the first tensioning arm in a pivoting mode through a bolt, and the second mounting hole is connected with the tensioning arm connecting hole in the first force arm of the second tensioning arm in a pivoting mode through a bolt.
7. A two way associative tensioner device according to claim 5, wherein said first bushing and said second bushing are disposed in opposing relation one to the other and pivotally mounted between said second tensioning arm pivot bore and said first tensioning arm third boss; the first bushing and the second bushing are identical in shape and size, the cross sections of the first bushing and the second bushing are L-shaped, and the symmetric centers of the first bushing and the second bushing are superposed with the axial line of the third boss of the first tensioning arm; the first bushing and the second bushing are interference mounted between the pivot hole and the third boss.
8. A two way associative tensioner device according to claim 5, wherein said first boss of said first tensioning arm has mounted thereon a first tensioning wheel rotatable about said first boss axis; a second tensioning wheel capable of rotating relative to the tensioning wheel mounting table is arranged on the tensioning wheel mounting table of the second tensioning arm; the upper end faces of the first tensioning wheel and the second tensioning wheel are flush.
9. A two way associative tensioner device according to claim 1, wherein said annular base plate is provided with a through hole which mates with the MGU motor housing and is fixedly mounted to the MGU motor housing by means of bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920724822.2U CN210178840U (en) | 2019-05-20 | 2019-05-20 | Two-way relevant formula tensioning ware device |
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| CN201920724822.2U CN210178840U (en) | 2019-05-20 | 2019-05-20 | Two-way relevant formula tensioning ware device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230675A (en) * | 2019-05-20 | 2019-09-13 | 宁波丰茂远东橡胶有限公司 | A kind of bi-directional association formula tensioner apparatus |
| CN111720502A (en) * | 2020-07-10 | 2020-09-29 | 宁波丰茂远东橡胶有限公司 | Two-way tensioning device |
| CN113969962A (en) * | 2020-07-22 | 2022-01-25 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
-
2019
- 2019-05-20 CN CN201920724822.2U patent/CN210178840U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230675A (en) * | 2019-05-20 | 2019-09-13 | 宁波丰茂远东橡胶有限公司 | A kind of bi-directional association formula tensioner apparatus |
| CN111720502A (en) * | 2020-07-10 | 2020-09-29 | 宁波丰茂远东橡胶有限公司 | Two-way tensioning device |
| CN111720502B (en) * | 2020-07-10 | 2022-05-24 | 宁波丰茂远东橡胶有限公司 | Two-way tensioning device |
| CN113969962A (en) * | 2020-07-22 | 2022-01-25 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
| CN113969962B (en) * | 2020-07-22 | 2023-11-21 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
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Address after: 315400 ce10, Far East Industrial City, Yuyao Economic Development Zone, Ningbo City, Zhejiang Province Patentee after: Zhejiang Fengmao Technology Co.,Ltd. Address before: 315400 ce10, Far East Industrial City, Yuyao Economic Development Zone, Ningbo City, Zhejiang Province Patentee before: Ningbo Fengmao Far-East Rubber Co.,Ltd. |