Clutch control mechanism capable of blocking scrap iron

Abstract

The utility model relates to a clutch control mechanism capable of blocking scrap iron, and provides the clutch control mechanism capable of blocking the scrap iron in order to solve the problems that a large gap exists between an existing clutch control mechanism and an input shaft of a gearbox, and the scrap iron is prone to being adsorbed to a speed measuring sensor. Wherein the clutch control mechanism is arranged between the clutch body and the gearbox front end cover, the clutch control mechanism is connected with the gearbox front end cover through a bolt, a through hole is formed in the center of the clutch control mechanism, and a gearbox input shaft penetrates through the through hole in the clutch control mechanism to be connected with a driven disc of the clutch. An annular groove is formed in the end, close to one end of the gearbox front end cover, of the inner wall of the through hole of the clutch control mechanism, an annular sealing ring is arranged in the annular groove, the outer diameter of the annular sealing ring is matched with the outer diameter of the annular groove, and a gap exists between the annular sealing ring and the gearbox input shaft.

Description

Technical Field

[0001] The utility model relates to a clutch operating mechanism of an integrated AMT, and particularly to a clutch operating mechanism capable of blocking iron filings. Background Art

[0002] At present, the integrated AMT adopts a central clutch operating mechanism (hereinafter referred to as CCA). The input shaft of the gearbox passes through the middle of the CCA and is connected to the driven disc of the clutch, and then the CCA is connected to the front end cover of the gearbox by bolts. A speed sensor is installed on the gearbox. Since there is a large gap between the CCA and the input shaft of the gearbox, iron filings are easily adsorbed on the speed sensor through this gap, resulting in sensor failure.

[0003] Chinese Patent No.: 201220018382.7, patent name: A gearbox capable of removing worn iron filings. By setting screw holes at the bottom of the gearbox body, installing screws in the screw holes, and setting strong magnetic materials in the screws to adsorb the iron filings in the gearbox body. It can be seen that after the iron filings enter the gearbox body, they are adsorbed by the strong magnetic materials. Since the speed sensor is installed on the gearbox, when the gap size between the CCA and the input shaft of the gearbox is large, this device cannot completely ensure that there are no residual iron filings on the speed sensor. If the iron filings pass through the gap between the CCA and the input shaft of the gearbox, it will cause certain damage to the speed sensor set on the gearbox, resulting in sensor failure and affecting the normal use of the gearbox. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that there is a large gap between the existing central clutch operating mechanism (CCA) and the input shaft of the gearbox, and iron filings are easily adsorbed on the speed sensor, and to propose a clutch operating mechanism capable of blocking iron filings.

[0005] To achieve the above purpose, the technical solution proposed by the utility model is as follows:

[0006] A clutch operating mechanism capable of blocking iron filings, wherein the clutch operating mechanism is arranged between the clutch body and the front end cover of the gearbox. The clutch operating mechanism and the front end cover of the gearbox are connected by bolts. A through hole is opened at the central position of the clutch operating mechanism. The input shaft of the gearbox passes through the through hole on the clutch operating mechanism and is connected to the driven disc of the clutch. The special feature is that:

[0007] An annular groove is opened at the end of the inner wall of the through hole of the clutch operating mechanism close to the front end cover of the gearbox. An annular sealing ring is arranged in the annular groove. The outer diameter of the annular sealing ring is adapted to the outer diameter of the annular groove. There is a gap between the annular sealing ring and the input shaft of the gearbox.

[0008] Further, the minimum distance between the inner diameter of the annular sealing ring and the transmission input shaft is not greater than 0.4 mm.

[0009] Further, the axial depth of the annular groove is 2 mm.

[0010] Further, the minimum distance between the inner diameter of the annular sealing ring and the transmission input shaft is 0.1 mm.

[0011] Further, the difference between the outer diameter of the annular groove and the through-hole diameter is not less than 5 mm.

[0012] Further, the difference between the outer diameter of the annular groove and the through-hole diameter is 10 mm.

[0013] Further, the annular sealing ring is adhered to the annular groove by anaerobic adhesive.

[0014] Advantages of the utility model:

[0015] 【1】The structure of the clutch operating mechanism capable of blocking iron filings of the utility model is simple and the cost is low. The annular gasket arranged on the clutch operating mechanism can effectively block the iron filings from entering the transmission through the gap between the clutch operating mechanism and the transmission input shaft, effectively avoiding the iron filings from being adsorbed to the speed measurement sensor.

[0016] 【2】The utility model does not need to change the structure of the transmission body, nor does it need to change the overall installation process of the mechanism. Without changing the overall structure of the transmission, it blocks the iron filings from entering the transmission with low cost and simple structure, reduces the failure rate of the speed measurement sensor, effectively saves the production cost and improves the production efficiency. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of a clutch operating mechanism capable of blocking iron filings of the utility model;

[0018] Figure 2 is a schematic installation position diagram of the annular gasket in the embodiment of the utility model;

[0019] Figure 3 is an exploded schematic installation structure diagram of the annular groove and the annular gasket in the embodiment of the utility model; Reference numerals:

[0020] 1 - Clutch operating mechanism, 2 - Transmission input shaft, 3 - Front end cover of the transmission, 4 - Annular groove, 5 - Annular sealing ring, 6 - Through hole, 7 - Speed measurement sensor. Detailed implementation manners

[0021] As Figure 1As shown in the figure, a clutch operating mechanism capable of blocking iron filings, wherein the clutch operating mechanism 1 is arranged between the clutch body and the front end cover 3 of the gearbox. The clutch operating mechanism 1 is connected to the front end cover 3 of the gearbox by bolts. A through hole 6 is provided at the center position of the clutch operating mechanism 1. The input shaft 2 of the gearbox passes through the through hole 6 on the clutch operating mechanism 1 and is connected to the driven disc of the clutch. A speed sensor 7 is installed on the front end cover 3 of the gearbox;

[0022] As Figure 2 and Figure 3 shown in the figure, an annular groove 4 is provided at the end of the inner wall of the through hole 6 of the clutch operating mechanism 1 connected to the front end cover 3 of the gearbox. An annular sealing ring 5 is arranged in the annular groove 4. The annular sealing ring 5 is adhered to the annular groove 4 by anaerobic adhesive. The outer diameter of the annular sealing ring 5 is adapted to the outer diameter of the annular groove 4. There is a gap between the annular sealing ring 5 and the input shaft 2 of the gearbox. The minimum distance between the inner diameter of the annular sealing ring 5 and the input shaft 2 of the gearbox is not greater than 0.4 mm.

[0023] In the present utility model, the diameter of the through hole 6 on the clutch operating mechanism 1 is 63 mm, and the maximum diameter of the shaft diameter on the input shaft 2 of the gearbox is 49.6 mm. An annular groove 4 is provided on the side of the clutch operating mechanism 1 connected to the front end cover 3 of the gearbox by milling. The outer diameter of the annular groove 4 is 73 mm, and the depth is 2 mm. The outer diameter of the annular sealing ring 5 adhered to the annular groove 4 is 73 mm, the inner diameter is 50 mm, and the thickness is 2 mm. This structure realizes the blocking of iron filings at a low cost without changing the structure of the gearbox, avoids the iron filings being adsorbed onto the speed sensor 7, and reduces the damage rate of the speed sensor 7.

Claims

1. A clutch operating mechanism capable of blocking iron filings, wherein the clutch operating mechanism (1) is arranged between the clutch body and the front end cover (3) of the gearbox. The clutch operating mechanism (1) is bolted to the front end cover (3) of the gearbox. A through hole (6) is provided at the central position of the clutch operating mechanism (1). The input shaft (2) of the gearbox passes through the through hole (6) on the clutch operating mechanism (1) and is connected to the driven disc of the clutch. It is characterized in that: An annular groove (4) is provided at the end of the inner wall of the through hole (6) of the clutch operating mechanism (1) near the front end cover (3) of the gearbox. An annular sealing ring (5) is arranged in the annular groove (4). The outer diameter of the annular sealing ring (5) is adapted to the outer diameter of the annular groove (4). There is a gap between the annular sealing ring (5) and the input shaft (2) of the gearbox.

2. The clutch operating mechanism capable of blocking iron filings according to claim 1, characterized in that: The minimum distance between the inner diameter of the annular sealing ring (5) and the input shaft (2) of the gearbox is not greater than 0.4 mm.

3. The clutch operating mechanism capable of blocking iron filings according to claim 2, characterized in that: The axial depth of the annular groove (4) is 2 mm.

4. The clutch operating mechanism capable of blocking iron filings according to claim 3, characterized in that: The minimum distance between the inner diameter of the annular sealing ring (5) and the input shaft (2) of the gearbox is 0.1 mm.

5. The clutch operating mechanism capable of blocking iron filings according to claim 4, characterized in that: The difference between the outer diameter of the annular groove (4) and the diameter of the through hole (6) is not less than 5 mm.

6. The clutch operating mechanism capable of blocking iron filings according to claim 5, characterized in that: The difference between the outer diameter of the annular groove (4) and the diameter of the through hole (6) is 10 mm.

7. The clutch operating mechanism capable of blocking iron filings according to claim 1, characterized in that: The annular sealing ring (5) is adhered to the annular groove (4) by anaerobic adhesive.

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