A VVT gear

Abstract

The utility model provides a VVT gear, including an auxiliary reset component and a main body component; the auxiliary reset component includes a fixed block, a groove, a slide slot, a slider, a telescopic rod, a first spring, a plunger, a baffle and a through hole; a through hole is provided on one side of the fixed block, a slide slot is provided on the inner side wall of the through hole, one side of the slider is slidably connected to the inside of the slide slot, one side of the fixed block is provided with a groove, one side of the baffle is installed in the inside of the groove, and the outer side wall of the telescopic rod is installed in the inside of the through hole. The utility model plays a guiding role on the plunger through the arrangement of the slide slot, the slider, the telescopic rod and the first spring. When the plunger is in a compressed state for a long time, the first spring will not be over-compressed through the arrangement of the telescopic rod. By using it in conjunction with the slider and the slide slot, the first spring will not experience elastic fatigue after long-term use, thereby extending the service life of the VVT ​​gear.

Description

Technical Field

[0001] The utility model relates to a gear, in particular to a VVT gear, and belongs to the technical field of automobile accessories. Background Art

[0002] The VVT ​​variable valve timing system adjusts the phase of the engine cam through the control and execution system it is equipped with, so that the time of valve opening and closing changes with the change of engine speed, so as to improve the charging efficiency and increase the engine power. The phase change of the cam mainly depends on the camshaft connected to it, and the camshaft changes through the VVT ​​gear connected to it. If the camshaft wants to change, hydraulic oil needs to enter the oil channel in the VVT ​​gear to form oil pressure, which will form pressure on the positioning pin inside the VVT ​​gear so that it will no longer be embedded in the lock hole. Then the camshaft can start to rotate. In the state without oil pressure, the positioning pin is embedded in the lock hole by the elastic force of the spring, and the camshaft will not rotate relative to the VVT ​​gear.

[0003] A Chinese patent publication (publication number: CN207111193U) discloses a VVT gear, which solves the problems of the existing VVT gear not responding quickly enough. The VVT ​​gear includes a sprocket, a rotor, a sealing gasket and an annular sealing plate. The rotor is located in the sprocket and a positioning pin and a spring are provided in the rotor. The sealing plate is located on one side of the sprocket, and the sealing gasket is located on the other side of the sprocket. A number of bolts evenly distributed circumferentially pass through the sealing gasket, the sprocket and the sealing plate in sequence. The sealing plate has a locking hole. The spring provides elastic force so that the end of the positioning pin extends out of the rotor and is located in the locking hole. The sealing plate is fixedly connected to a sealing plate cover that covers it. A torsion spring is provided between the sealing plate cover and the sealing plate. One end of the torsion spring is passed through the sealing plate cover, and the other end of the torsion spring is bent into the inner circle of the sealing plate and the end of the torsion spring is plugged into the rotor with an interference fit. The utility model has the advantages of fast response, etc. When the engine is used for a long time, the spring will be in a compressed state for a long time, which may easily cause the positioning pin to fail to fix the valve body, resulting in damage to the VVT ​​gear. For this reason, a VVT gear is proposed. Utility Model Content

[0004] In view of this, the utility model provides a VVT gear to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a VVT gear comprises an auxiliary reset component and a main body component;

[0006] The auxiliary reset assembly includes a fixed block, a groove, a slide slot, a slider, a telescopic rod, a first spring, a plunger, a baffle and a through hole;

[0007] A through hole is provided on one side of the fixed block, a sliding groove is provided on the inner wall of the through hole, one side of the slider is slidably connected to the inside of the sliding groove, a groove is provided on one side of the fixed block, one side of the baffle is installed in the inside of the groove, and the outer side wall of the telescopic rod is installed in the inside of the through hole.

[0008] Further preferably, an outer side wall of the telescopic rod is sleeved with a first spring, and a piston rod of the telescopic rod is fixedly connected to one side of the plunger.

[0009] Further preferably, one side of the slider is fixedly connected to one end of the plunger.

[0010] Further preferably, the main body assembly includes a shell, a sprocket, a fixing hole, a blade, a valve body, a bearing, a return spring, a fixing screw, a rear cover and a front cover; one side of the fixing block is fixedly connected to the inner wall of the shell, and the outer wall of the plunger is installed inside the valve body.

[0011] Further preferably, a fixing hole is opened on one side of the shell, a sprocket is installed on the outer side wall of the shell, one end of the valve body is rotatably connected to the inside of the shell, and a blade is installed on the outer side wall of the valve body.

[0012] Further preferably, a bearing is installed inside the valve body, a return spring is sleeved on the outer wall of the bearing, a rear cover is installed on one side of the shell, a front cover is installed on the other side of the shell, and a fixing screw is installed on one side of the front cover.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0014] The utility model plays a guiding role for the plunger by arranging the slide groove, the slider, the telescopic rod and the first spring. When the plunger is in a compressed state for a long time, the telescopic rod is arranged so that the first spring will not be over-compressed. By cooperating with the slider and the slide groove, the first spring will not suffer from elastic fatigue after long-term use, thereby extending the service life of the VVT ​​gear.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is the internal structure diagram of the utility model;

[0018] Figure 2 It is a structural diagram of the utility model;

[0019] Figure 3 It is a side view structural diagram of the utility model;

[0020] Figure 4 This is a structural diagram of the auxiliary reset component of the utility model;

[0021] Figure 5 This is a supplementary diagram of the auxiliary reset component structure of the utility model.

[0022] Figure numerals: 101, auxiliary reset assembly; 10, fixing block; 11, groove; 12, slide groove; 13, slider; 14, telescopic rod; 15, first spring; 16, plunger; 17, baffle; 18, through hole; 201, main body assembly; 20, housing; 21, sprocket; 22, fixing hole; 23, blade; 24, valve body; 25, bearing; 26, return spring; 27, fixing screw; 28, rear cover; 29, front cover. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, the embodiment of the utility model provides a VVT gear, including an auxiliary reset component 101 and a main body component 201;

[0026] The auxiliary reset assembly 101 includes a fixed block 10, a groove 11, a slide slot 12, a slider 13, a telescopic rod 14, a first spring 15, a plunger 16, a baffle 17 and a through hole 18;

[0027] A through hole 18 is provided on one side of the fixed block 10, a slide groove 12 is provided on the inner wall of the through hole 18, one side of the slider 13 is slidably connected to the inside of the slide groove 12, a groove 11 is provided on one side of the fixed block 10, one side of the baffle 17 is installed in the inside of the groove 11, and the outer wall of the telescopic rod 14 is installed in the inside of the through hole 18.

[0028] In one embodiment, a first spring 15 is sleeved on the outer wall of the telescopic rod 14, and the piston rod of the telescopic rod 14 is fixedly connected to one side of the plunger 16. The setting of the telescopic rod 14 fixes the first spring 15, and the setting of the telescopic rod 14 fixes the plunger 16.

[0029] In one embodiment, one side of the slider 13 is fixedly connected to one end of the plunger 16. Through the arrangement of the slide groove 12 and the slider 13, a guiding effect is played on the plunger 16 to prevent the VVT ​​gear from being severely worn internally after long-term use and the plunger 16 from being unable to be retracted.

[0030] In one embodiment, the main body component 201 includes a shell 20, a sprocket 21, a fixing hole 22, a blade 23, a valve body 24, a bearing 25, a return spring 26, a fixing screw 27, a rear cover 28 and a front cover 29; one side of the fixing block 10 is fixedly connected to the inner wall of the shell 20, and the outer wall of the plunger 16 is installed inside the valve body 24. Through the setting of the shell 20, the fixing block 10 is fixed, and through the setting of the valve body 24, the plunger 16 is fixed.

[0031] In one embodiment, a fixing hole 22 is opened on one side of the shell 20, a sprocket 21 is installed on the outer wall of the shell 20, one end of the valve body 24 is rotatably connected to the interior of the shell 20, and a blade 23 is installed on the outer wall of the valve body 24. Through the setting of the shell 20, the sprocket 21 is fixed. When the VVT ​​gear is working, the VVT ​​solenoid valve introduces the oil pressure into the VVT ​​mechanism, and the oil pressure pushes the plunger 16 back into the shell 20. The plunger 16 releases the fixation of the shell 20. As the oil pressure increases, the oil enters the interior of the VVT ​​gear. As the oil enters, the valve body 24 will slowly be turned to an angle, so that the valve body 24 drives the blade 23 to rotate, thereby realizing the early opening of the valve, thereby realizing the increase of engine power.

[0032] In one embodiment, a bearing 25 is installed inside the valve body 24, and a return spring 26 is sleeved on the outer wall of the bearing 25. A rear cover 28 is installed on one side of the shell 20, and a front cover 29 is installed on the other side of the shell 20. A fixing screw 27 is installed on one side of the front cover 29. The setting of the valve body 24 fixes the bearing 25, and the setting of the bearing 25 fixes the return spring 26. The setting of the shell 20 fixes the rear cover 28 and the front cover 29.

[0033] The utility model is in operation: when not in operation, the plunger 16 fixes the sprocket 21 and the valve body 24; when in operation, the VVT ​​solenoid valve introduces the oil pressure into the VVT ​​mechanism, and the oil pressure pushes the plunger 16 back into the housing 20, and the plunger 16 releases the fixation to the housing 20; as the oil pressure increases, the oil enters the interior of the VVT ​​gear; as the oil enters, the valve body 24 is slowly turned to an angle, so that the valve body 24 drives the blade 23 to rotate, and the valve is opened in advance, thereby increasing the engine power; the arrangement of the slide groove 12, the slider 13, the telescopic rod 14 and the first spring 15 plays a guiding role on the plunger 16; when the plunger 16 is in a compressed state for a long time, the arrangement of the telescopic rod 14 prevents the first spring 15 from being over-compressed; and by being used in conjunction with the slider 13 and the slide groove 12, the first spring 15 will not experience elastic fatigue after long-term use, thereby extending the service life of the VVT ​​gear.

[0034] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A VVT gear, characterized in that: It comprises an auxiliary reset component (101) and a main body component (201); The auxiliary reset assembly (101) comprises a fixed block (10), a groove (11), a sliding groove (12), a sliding block (13), a telescopic rod (14), a first spring (15), a plunger (16), a baffle (17) and a through hole (18); A through hole (18) is provided on one side of the fixed block (10), a sliding groove (12) is provided on the inner side wall of the through hole (18), one side of the sliding block (13) is slidably connected to the inside of the sliding groove (12), a groove (11) is provided on one side of the fixed block (10), one side of the baffle (17) is installed in the inside of the groove (11), and the outer side wall of the telescopic rod (14) is installed in the inside of the through hole (18).

2. A VVT gear according to claim 1, characterized in that: The outer side wall of the telescopic rod (14) is sleeved with a first spring (15), and the piston rod of the telescopic rod (14) is fixedly connected to one side of the plunger (16).

3. A VVT gear according to claim 2, characterized in that: One side of the slider (13) is fixedly connected to one end of the plunger (16).

4. A VVT gear according to claim 2, characterized in that: The main body assembly (201) comprises a housing (20), a sprocket (21), a fixing hole (22), a blade (23), a valve body (24), a bearing (25), a return spring (26), a fixing screw (27), a rear cover (28) and a front cover (29); one side of the fixing block (10) is fixedly connected to the inner wall of the housing (20), and the outer wall of the plunger (16) is installed inside the valve body (24).

5. A VVT gear according to claim 4, characterized in that: A fixing hole (22) is provided on one side of the shell (20), a sprocket (21) is installed on the outer wall of the shell (20), one end of the valve body (24) is rotatably connected to the inside of the shell (20), and a blade (23) is installed on the outer wall of the valve body (24).

6. A VVT gear according to claim 5, characterized in that: A bearing (25) is installed inside the valve body (24), and a return spring (26) is sleeved on the outer wall of the bearing (25). A rear cover (28) is installed on one side of the shell (20), and a front cover (29) is installed on the other side of the shell (20), and a fixing screw (27) is installed on one side of the front cover (29).

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