Abnormal sound clearance adjusting structure of engine

Abstract

The utility model belongs to the technical field of engines, and particularly relates to an abnormal sound clearance adjusting structure of an engine. One end of the first pin shaft is inserted in a first pin shaft hole of the first turbine clamp, the first pin shaft between the bypass valve connecting piece and the bypass valve pull rod is clamped in an open groove of the first turbine clamp, and the elastic pressing plate is arranged on the end face of the first pin shaft in a pressing mode to axially clamp the bypass valve pull rod connecting piece and the bypass valve pull rod. One end of a second pin shaft is sleeved in a second pin shaft hole of the second turbine clip, and the other end of the second turbine clip is propped against the bypass valve pull rod support, so that the bypass valve pull rod and the bypass valve pull rod support are axially limited between the limiting convex edge and the other end of the second turbine clip; a gap between the bypass valve connecting piece and the bypass valve pull rod and a gap between the bypass valve pull rod and the bypass valve pull rod support are eliminated through the first turbine clamp and the second turbine clamp respectively, and when the rotating speed of an engine reaches 1300-1500, no metal abnormal sound exists in the front of the engine.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine technical field, especially point to a kind of engine abnormal sound gap adjustment structure. BACKGROUND

[0002] BMW new X1, X3 and part MINI model, configuration B38 or B48 model engine, when throttle to 1300-1500 rev, engine front will have metallic abnormal sound sound of da, da, da. As shown in Figure Figure 1 The shell of the engine is provided with a bypass valve 1, a bypass valve pull rod connecting piece 2, a bypass valve pull rod 3, a bypass valve pull rod support 4 and an adjusting motor fixing support 5. One end of the bypass valve pull rod connecting piece 2 is connected with the bypass valve 1, the other end is rotatably connected with one end of the bypass valve pull rod 3 through a first pin shaft 6, the other end of the bypass valve pull rod 3 is rotatably connected with one end of the bypass valve pull rod support 4 through a second pin shaft 7, and the other end of the bypass valve pull rod support 4 is fixedly arranged on the adjusting motor fixing support 5. It is found through detection that the abnormal sound is caused by the collision between the bypass valve pull rod 3 and the bypass valve pull rod connecting piece 2 due to the gap, and the collision between the bypass valve pull rod 3 and the bypass valve pull rod support 4 due to the gap. This abnormal sound can greatly reduce the driving experience, especially for some inexperienced drivers, who will think that the car is out of order and be in panic, affecting the driving safety. SUMMARY

[0003] The utility model aims at providing an engine abnormal sound gap adjustment structure for eliminating metallic abnormal sound sound when throttle to 1300-1500 rev.

[0004] The utility model is implemented as follows:

[0005] The application relates to an engine abnormal sound gap adjusting structure, which comprises an engine, a bypass valve, a bypass valve pull rod connecting piece connected with the bypass valve and arranged outside an engine shell, a first pin shaft connecting one end of a bypass valve pull rod with the bypass valve pull rod connecting piece, a bypass valve pull rod support connected with the other end of the bypass valve pull rod through a second pin shaft with a limiting protruding edge, a first turbine clamp sleeved on the first pin shaft, the first turbine clamp comprising a folded elastic body, a first pin shaft hole arranged at one end of the elastic body, an elastic pressing plate arranged on one side of the first pin shaft hole and extending into the first pin shaft hole, an open slot arranged at the other end of the elastic body, one end of the first pin shaft being inserted into the first pin shaft hole, the first pin shaft being clamped in the open slot between the bypass valve pull rod connecting piece and the bypass valve pull rod, and the elastic pressing plate being pressed against the end surface of the first pin shaft to axially clamp and limit the bypass valve pull rod connecting piece and the bypass valve pull rod, a second turbine clamp sleeved on the second pin shaft, the second turbine clamp comprising a folded elastic body, a second pin shaft hole arranged at one end of the elastic body, one end of the second pin shaft being sleeved in the second pin shaft hole and the other end being tightly pressed against the bypass valve pull rod support, and the bypass valve pull rod and the bypass valve pull rod support being axially limited between the limiting protruding edge and the other end of the second turbine clamp.

[0006] In the engine abnormal sound gap adjusting structure, the first turbine clamp and the second turbine clamp are made of metal materials.

[0007] In the engine abnormal sound gap adjusting structure, one end of the first turbine clamp is provided with a first bending part bent outward.

[0008] In the engine abnormal sound gap adjusting structure, one end of the second turbine clamp is provided with a second bending part bent outward.

[0009] In the engine abnormal sound gap adjusting structure, the outer end of the elastic pressing plate of the first turbine clamp is provided with a third bending part bent outward.

[0010] In the engine abnormal sound gap adjusting structure, the other end of the first turbine clamp is in a semicircular ring shape, and the inside of the semicircular ring is an open slot.

[0011] Compared with the prior art, the engine abnormal sound gap adjusting structure has the following advantages:

[0012] The utility model discloses a first pin shaft, second pin shaft's structure, designed first turbine card and second turbine card, and through first turbine card and second turbine card respectively eliminate the gap between by -pass valve pull rod connecting piece and by -pass valve pull rod, the gap between by -pass valve pull rod, by -pass valve pull rod support, when engine reaches 1300-1500 speed, engine front also will not have da, da, da's metal abnormal sound, greatly promoted the driving experience and driving safety. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the schematic diagram of background technology;

[0014] Figure 2 It is the schematic diagram of the utility model;

[0015] Figure 3 It is the schematic diagram of second turbine card of the utility model.

[0016] Figure 1 In it: 1, by -pass valve;2, by -pass valve pull rod connecting piece;3, by -pass valve pull rod;4, by -pass valve pull rod support;5, adjusting motor fixed support;6, first pin shaft;7, second pin shaft.

[0017] Figures 2-3 In it: 10, by -pass valve;11, by -pass valve pull rod connecting piece;12, first pin shaft;13, by -pass valve pull rod;14, second pin shaft;15, by -pass valve pull rod support;16, adjusting motor fixed support;17, first turbine card;18, elastic pressing plate;19, second turbine card;20, second pin shaft hole;21, first bending part;22, second bending part;23, third bending part. DETAILED DESCRIPTION

[0018] The utility model will be further described with specific embodiment below, refer to Figure 2 -3:

[0019] The utility model provides a kind of engine abnormal sound gap adjustment structure, the engine abnormal sound gap adjustment structure includes engine, the engine includes bypass valve 10, bypass valve pull rod connecting piece 11 connected with bypass valve 10 is provided outside engine housing, bypass valve pull rod connecting piece 11 is connected with the one end of bypass valve pull rod 13 by first pin shaft 12, the other end of bypass valve pull rod 13 is connected with bypass valve pull rod support 15 by second pin shaft 14 with limit lobe, bypass valve pull rod support 15 is connected on adjusting motor fixed support 16, first turbine clip 17 is sleeved on first pin shaft 12, first turbine clip 17 includes the elastic body of being set to fold, first pin shaft hole is provided at the one end of elastic body, elastic pressing plate 18 is provided at the side of first pin shaft hole, elastic pressing plate 18 is inserted into first pin shaft hole, the other end of elastic body is provided with open slot, the one end of first pin shaft 12 is inserted in first pin shaft hole, first pin shaft 12 is clamped in open slot between bypass valve pull rod connecting piece 11 and bypass valve pull rod 13, and the end surface of first pin shaft 12 is pressed in bypass valve pull rod connecting piece 11 and bypass valve pull rod 13 with elastic pressing plate 18 and is axially clamped and limited, second turbine clip 19 is sleeved on second pin shaft 14, second turbine clip 19 includes the elastic body of being set to fold, second pin shaft hole 20 is provided at the one end of elastic body, the one end of second pin shaft 14 is sleeved in second pin shaft hole 20, the other end is tightly pressed on bypass valve pull rod support 15, bypass valve pull rod 13, bypass valve pull rod support 15 is axially limited between limit lobe and the other end of second turbine clip.

[0020] The utility model discloses in combination with the structure of first pin shaft and second pin shaft, designs first turbine clip 17 and second turbine clip 19, and eliminates the gap between bypass valve pull rod connecting piece 11 and bypass valve pull rod 13, the gap between bypass valve pull rod 13 and bypass valve pull rod support 15 by first turbine clip 17 and second turbine clip 19 respectively, when engine reaches 1300-1500 revs, the engine front part also does not have metallic abnormal sound sound of da, da, da, greatly improves driving experience and driving safety.

[0021] Further, the first turbine clip 17 and the second turbine clip 19 are made of metal material, which has good elasticity and long service life.

[0022] To improve the pressure, one end of the first turbine clip 17 is provided with a first bending portion 21 bent outward, so that the one end of the first turbine clip 17 presses the one end of the bypass valve pull rod 13 more tightly.

[0023] Similarly, one end of the second turbine clip 19 is provided with a second bending portion 22 bent outward, so that the one end of the second turbine clip 19 presses the other end of the bypass valve pull rod more tightly.

[0024] The utility model discloses the elastic pressing plate 18 of first turbine clamp 17's outer end is provided with the third bending part 23 that bends to the outside, makes elastic pressing plate 18 press the one end of bypass valve pull rod 13 and the bypass valve pull rod connecting piece 11 press more tightly.

[0025] In order to facilitate installation, the other end of the first turbine clamp is a semicircular ring with a diameter greater than that of the first pin shaft 12, and the inside of the semicircular ring is an open slot.

[0026] The above embodiment is only one of the preferred embodiments of the utility model, and does not limit the scope of the utility model, so: all equivalent changes made according to the shape, structure and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. An engine abnormal sound gap adjusting structure, comprising an engine, the engine comprising a bypass valve (10), a bypass valve rod connecting piece (11) connected with the bypass valve (10) is arranged outside an engine housing, the bypass valve rod connecting piece (11) is connected with one end of a bypass valve rod (13) through a first pin shaft (12), the other end of the bypass valve rod (13) is connected with a bypass valve rod support (15) through a second pin shaft (14) with a limiting convex edge, and the bypass valve rod support (15) is connected on an adjusting motor fixed support (16), characterized in that: The first pin shaft (12) is sleeved with a first turbine clamp (17), the first turbine clamp (17) comprises a folded elastic body, a first pin shaft hole is arranged at one end of the elastic body, a elastic pressing plate (18) is arranged at one side of the first pin shaft hole, the elastic pressing plate (18) extends into the first pin shaft hole, an open slot is arranged at the other end of the elastic body, one end of the first pin shaft (12) is inserted into the first pin shaft hole, the first pin shaft (12) between the bypass valve pull rod connecting piece (11) and the bypass valve pull rod (13) is clamped in the open slot, and the elastic pressing plate (18) is pressed at the end of the first pin shaft to axially clamp and limit the bypass valve pull rod connecting piece (11) and the bypass valve pull rod (13), the second pin shaft (14) is sleeved with a second turbine clamp (19), the second turbine clamp (19) comprises a folded elastic body, a second pin shaft hole (20) is arranged at one end of the elastic body, one end of the second pin shaft (14) is sleeved in the second pin shaft hole (20), and the other end is tightly pressed on the bypass valve pull rod support (15), so that the bypass valve pull rod (13) and the bypass valve pull rod support (15) are axially limited between the limiting convex edge and the other end of the second turbine clamp (19).

2. The engine abnormal sound gap adjusting structure according to claim 1, characterized by: The first turbine clamp (17) and the second turbine clamp (19) are both made of metal material.

3. The engine abnormal sound gap adjusting structure according to claim 1, characterized by: One end of the first turbine clamp (17) is provided with a first bending (21) bent outward.

4. The engine rattle clearance adjustment structure according to claim 1, characterized by: One end of the second turbine clamp is provided with a second bending part (22) bent outward.

5. The engine rattle clearance adjustment structure according to claim 1, characterized by: The outer end of the elastic pressing plate (18) of the first turbine clamp (17) is provided with a third bending part (23) bent outward.

6. The engine rattle clearance adjustment structure according to claim 1, characterized by: The other end of the first turbine clamp (17) is a semicircular ring, and the inside of the semicircular ring is an open slot.

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