Limiting bearing adapter sleeve for automobile transmission shaft

Abstract

The utility model relates to the technical field of bearing adapter sleeves, in particular to a limiting bearing adapter sleeve for an automobile transmission shaft. According to the technical scheme, the locking device comprises a first locking nut, a meshing groove, a fastening bush, a second locking nut and a notch, a first external thread and a second external thread are arranged at the positions, close to the two ends, of the outer surface of the fastening bush correspondingly, and a conical surface is arranged on the portion, between the first external thread and the second external thread, of the outer surface of the fastening bush; a first locking nut and a first locking washer are connected to the positions, located at the first external threads, of the outer surface of the fastening bush in a sleeving mode, and a second locking nut and a second locking washer are connected to the positions, located at the second external threads, of the outer surface of the fastening bush in a sleeving mode. According to the utility model, the bearing on the automobile transmission shaft can be prevented from moving, so that the power transmission stability of the transmission shaft is improved, the abrasion of the bearing is reduced, the service life of the bearing is prolonged, and the bearing is convenient to disassemble and overhaul.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing tight bush technology field, concretely is a kind of limiting bearing tight bush for automobile transmission shaft. BACKGROUND

[0002] Bearing tight bush is the most commonly used component when bearing with taper hole is positioned on cylindrical shaft, this kind of shaft sleeve can be used for optical axis, also can be used for stepped shaft, tight bush is composed of tight bushing, locking nut and locking washer (or locking card) and other parts, its main function includes fixed bearing, transmission torque, improve transmission efficiency and facilitate the installation and disassembly of bearing.

[0003] At present, bearing tight bush for automobile transmission shaft and play the limiting effect in the process of using, due to the vibration of automobile driving process is larger, and the environment used is more complex, easy to contact rainwater and silt and other objects, so bearing can appear to run away due to vibration, and in the long-term use process, due to bearing contact with rainwater and rust, it is not easy to be disassembled from tight bush in the process of overhaul, for this purpose, we propose a kind of limiting bearing tight bush for automobile transmission shaft. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of limiting bearing tight bush for automobile transmission shaft, with the advantages that the bearing on automobile transmission shaft can be avoided to run away, so as to improve the stability of power transmission of transmission shaft, also reduce the wear of bearing, prolong the service life of bearing, simultaneously facilitate the disassembly and overhaul of bearing, solve the problem that bearing tight bush for automobile transmission shaft and play the limiting effect in the process of using, due to the vibration of automobile driving process is larger, and the environment used is more complex, easy to contact rainwater and silt and other objects, so bearing can appear to run away due to vibration, and in the long-term use process, due to bearing contact with rainwater and rust, it is not easy to be disassembled from tight bush in the process of overhaul.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of limiting bearing tight bush for automobile transmission shaft, including first locking nut, engagement groove, tight bushing, second locking nut and slot, the first outer thread and the second outer thread are respectively provided with on the outer surface of the tight bushing close to two end positions, taper surface is provided with between the first outer thread and the second outer thread on the outer surface of the tight bushing, the first locking nut and the first locking washer are sleeved with on the outer surface of the tight bushing at the first outer thread position, the second locking nut and the second locking washer are sleeved with on the outer surface of the tight bushing at the second outer thread position.

[0006] Preferably, the outer surface of the tight bushing is provided with slot, and the slot extends to both ends of the tight bushing.

[0007] Preferably, the first locking washer and the second locking washer are provided with limiting protruding blocks on the inner walls, and the limiting protruding blocks are located inside the notches.

[0008] Preferably, the first locking nut and the second locking nut are provided with a plurality of engagement grooves on the outer surfaces in an annular array and equidistantly arranged.

[0009] Preferably, the first locking washer and the second locking washer are provided with a plurality of washer teeth on the outer surfaces in an annular array and equidistantly arranged.

[0010] Preferably, the outer surface edges of each washer tooth are provided with a round corner.

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

[0012] 1. The utility model discloses a locking washer and a locking nut are arranged on the outer surface of the tight bushing, and the first locking nut and the first locking washer are arranged on one end of the tight bushing, and the second locking nut and the second locking washer are arranged on the other end of the tight bushing, so that the bearing on the automobile transmission shaft is fixed on the tight bushing, and the bearing is fixed on the tight bushing through the first locking nut and the first locking washer, and the bearing is fixed on the tight bushing through the second locking nut and the second locking washer, so that the bearing is fixed on the tight bushing through the first locking nut and the first locking washer, and the bearing is fixed on the tight bushing through the second locking nut and the second locking washer.

[0013] 2. The utility model discloses a round corner, which is convenient for bending the washer teeth in the engagement groove. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Fig. 2This is a partial three-dimensional structural diagram of the locking bushing of this utility model;

[0016] Fig. 3 This is a partial three-dimensional structural diagram of the first locking washer of this utility model.

[0017] Reference numerals: 1. First locking nut; 2. First locking washer; 3. Engaging groove; 4. Second locking washer; 5. Set bushing; 6. Second locking nut; 7. First external thread; 8. Tapered surface; 9. Second external thread; 10. Groove; 11. Washer tooth; 12. Limiting protrusion; 13. Rounded corner. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] like Figs. 1-3 As shown, the present invention proposes a limiting bearing locking sleeve for automotive drive shafts, comprising a first locking nut 1, a meshing groove 3, a locking bushing 5, a second locking nut 6, and a slot 10. The outer surface of the locking bushing 5 is provided with a slot 10, which extends to both ends of the locking bushing 5. The outer surface of the locking bushing 5 is provided with a first external thread 7 and a second external thread 9 near both ends, respectively. A tapered surface 8 is provided on the outer surface of the locking bushing 5 between the first external thread 7 and the second external thread 9. The outer diameter of the locking bushing 5 near the first external thread 7 is smaller than that near the second external thread 9. The first locking nut 1 and the first locking washer 2 are sleeved on the outer surface of the locking bushing 5 at the position of the first external thread 7, and the second locking nut 6 and the second locking washer 4 are sleeved on the outer surface of the locking bushing 5 at the position of the second external thread 9.

[0020] The first locking washer 2 and the second locking washer 4 are provided with limiting protruding blocks 12 on inner walls, the limiting protruding blocks 12 are located inside the notches 10, the limiting protruding blocks 12 limit the first locking washer 2 and the second locking washer 4, so that the first locking washer 2 and the second locking washer 4 are prevented from rotating, the first locking nut 1 and the second locking nut 6 are provided with a plurality of engagement grooves 3 equidistantly arranged in an annular array on outer surfaces, a wrench is matched with the engagement grooves 3 to rotate the first locking nut 1 and the second locking nut 6, the first locking washer 2 and the second locking washer 4 are provided with a plurality of washer teeth 11 equidistantly arranged in an annular array on outer surfaces, the washer teeth 11 are bent to enter the engagement grooves 3, so that the rotation of the first locking nut 1 and the second locking nut 6 is limited, the first locking nut 1 and the second locking nut 6 are locked and fixed, and loosening is prevented, and each washer tooth 11 is provided with a round corner 13 at an edge position of an outer surface, when the washer tooth 11 is bent to enter the engagement groove 3, the round corner 13 allows an insertion gap to exist between the edge portion of the washer tooth 11 and an inner wall of the engagement groove 3, a screwdriver or the like is inserted between the engagement groove 3 and the washer tooth 11 through the gap, and the washer tooth 11 in the engagement groove 3 is bent out.

[0021] In use, the clamping bush 5 is sleeved on the automobile transmission shaft, the bearing with the conical hole is sleeved on the outer surface of the clamping bush 5, then the first locking nut 1 and the first locking washer 2 are sleeved on the clamping bush 5, the first locking washer 2 is located between the first locking nut 1 and the bearing, the first locking nut 1 is fixed on the clamping bush 5 through the first external thread 7, the conical hole in the bearing and the conical surface 8 are attached together, so that the clamping bush 5 is fixed on the automobile transmission shaft, at the same time, the bearing is also fixed on the clamping bush 5 through the first locking nut 1 and the first locking washer 2, then the second locking nut 6 and the second locking washer 4 are sleeved on the other end of the clamping bush 5, so that the bearing is fixed on both sides, and the bearing is prevented from moving due to automobile vibration, when the bearing is disassembled and maintained, the first locking nut 1 and the first locking washer 2 are disassembled first, then the second locking nut 6 is continuously rotated, so that the bearing is pushed by the second locking nut 6, and the bearing is removed from the clamping bush 5.

[0022] The above specific embodiments are only several preferred embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the above specific embodiments can be improved and combined in multiple alternative manners by the person skilled in the art.

Claims

1. A limited bearing lock bush for automotive propeller shafts, comprising a first lock nut (1), a snap groove (3), a lock bush (5), a second lock nut (6) and a notch (10), characterized in that: The outer surface of the tight bushing (5) is provided with a first external thread (7) and a second external thread (9) near both ends, respectively, a tapered surface (8) is arranged between the first external thread (7) and the second external thread (9) on the outer surface of the tight bushing (5), a first locking nut (1) and a first locking washer (2) are sleeved on the outer surface of the tight bushing (5) at the position of the first external thread (7), and a second locking nut (6) and a second locking washer (4) are sleeved on the outer surface of the tight bushing (5) at the position of the second external thread (9).

2. The retaining sleeve of claim 1, wherein: The outer surface of the tight bushing (5) is provided with a notch (10), and the notch (10) extends to both ends of the tight bushing (5).

3. The retaining sleeve of claim 1, wherein: The inner wall of the first locking washer (2) and the second locking washer (4) is provided with a limiting protruding block (12), and the limiting protruding block (12) is located inside the notch (10).

4. The retaining sleeve of claim 1, wherein: The outer surface of the first locking nut (1) and the second locking nut (6) is evenly provided with a plurality of engagement grooves (3) in a ring array at equal intervals.

5. The retaining sleeve of claim 1, wherein: The outer surface of the first locking washer (2) and the second locking washer (4) is evenly provided with a plurality of washer teeth (11) in a ring array at equal intervals.

6. The retaining sleeve of claim 5, wherein: The outer surface edge of each washer tooth (11) is provided with a round corner (13).

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