CN216009303U - Spline clutch - Google Patents

Abstract

The utility model discloses a spline clutch, which adopts a large-shaft-diameter wide-tooth meshing gear to transmit power, adopts a rice-shaped spline gear for pneumatic meshing of gears, has good guiding meshing effect when the gears are meshed, and is convenient for pushing a gear sleeve to be meshed with and separated from the gears. When the gear sleeve is separated from the gear, a plurality of groups of springs are uniformly distributed, and the gear sleeve is reset by utilizing the elasticity of the compression springs; the bearing for the shaft is used by adopting a single bearing group with a large shaft diameter, so that the bearing is more stable in the operation process and has stronger loading capacity. The shell is integrally arranged, so that the entering of external dust is reduced, and the service life is prolonged.

Description

Spline clutch

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to a spline clutch.

Background

In recent years, with the rapid development of economy in China, the living standard of people is greatly improved. People pay more and more attention to the urban sanitation and road cleaning degree, and environmental health departments in various places put urgent demands on the improvement of the mechanization degree of urban road cleaning operation. Therefore, the problems of continuous deep research and technological innovation on the existing sweeping machine are urgently solved. The whole sweeping machine is divided into seven systems: the device comprises a chassis system, an auxiliary engine system, a gas circuit system, a hydraulic system, a disc brush assembly, an auxiliary frame assembly and a carriage structure assembly. The auxiliary engine provides power source for various working devices of the vehicle, wherein one power is transmitted to the fan through a belt by a centrifugal clutch to complete the suction operation, and the other power output is that the working devices are controlled by a single-stage gear transmission device through a pneumatic system.

The clutch which is used in the existing market and has the defects of complex structure and troublesome operation, is inconvenient to install when a shaft is connected with a shaft sleeve, is easy to generate dislocation when a cylinder pushes a gear to be meshed, causes the meshed gear to be blocked and requires high precision of the matched gear. And the central load capacity is smaller, so that the service lives of the engine and the fan are short, frequent maintenance is required, and the starting capacity is poor. The novel multifunctional electric fan has the advantages that the novel multifunctional electric fan is easy to damage, difficult to install and maintain in the using process, and the like, and the problems that a plurality of shells are connected in a stepped mode, dust is easy to enter and the like are solved in the shell aspect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of complex installation, inconvenient maintenance and complex structure. Adopt big shaft diameter composite gear axle on the center pin, load carrying capacity is strong, and the operation is stable and has solved the less defect of above-mentioned load, and the dust ring adopts the integral type structure, more easy to assemble, and dustproof effect is better. The inner bearing adopts a single large-shaft-diameter bearing to replace the existing double bearings.

At gear engagement department, adopt the connected mode of spline direction tooth cover, solve foretell meshing dislocation, the dead scheduling problem of gear card that leads to, limiting displacement's jump ring adopts double helix jump ring, further plays limiting displacement, has effectually prevented that ordinary jump ring easily drops off the problem.

In order to achieve the purpose, the utility model adopts the following technical scheme: a spline clutch comprises an outer belt pulley (1), an upper shell (2), a limiting block (3), a bolt (4), a top cover (5), a small dust ring (6), a spiral clamp spring (7), a gear shaft (8), a return spring (9), a bearing (10), a shaft (11), an inner gear sleeve (12), spline teeth (13), a return spring limiting hole (14), a wedge connection (15), a key groove (16) and a large dust ring (17);

the device utilizes the belt pulley to drive the outer belt pulley (1) through the power generated by the auxiliary engine of the automobile, and the outer belt pulley (1) is fixedly connected with the inner gear sleeve (12) through a key; spline teeth (13) arranged inside the inner gear sleeve (12) are meshed with the gear shaft (8) to drive the gear shaft (8) to rotate; the gear shaft (8) is fixed on the shaft (11), and the shaft (11) is connected with a key through a key slot (16); a return spring limiting hole (14) is formed in the limiting block, one end of the return spring (9) is fixedly connected, and the other end of the return spring (9) is in contact with the end face of the gear shaft (8); the outer belt wheel (1) is connected with a shaft (11) through a bearing (10); the bearing (10) fixes the axial position by using the spiral clamp spring (7), and the spiral clamp spring (7) is buckled with a clamping groove arranged on the shaft (11); one end of the outer belt wheel (1) is connected with the upper shell (2) through a wedge connection (15) to form a concave-convex surface, and the other end of the outer belt wheel is sealed with the shaft (11) through a large dust ring (17); the upper shell (2) is connected with the end part of the shaft and is hermetically connected by a small dustproof ring (6); the upper end of the upper shell (2) is connected with a top cover (5) through a bolt (4); go up casing (2) and utilize cascaded bearing overall arrangement, stopper (3) separate the bearing position and are connected with axle (11).

The utility model has the beneficial effects that: the bearing is single-group by adopting the large-shaft-diameter spline teeth and the large-shaft-diameter spline teeth, so that the whole load-carrying capacity is stronger, the operation is more stable, the failure rate is reduced, the sealing performance of the integrated shell is stronger, the external dust is effectively prevented from entering, and the service life is prolonged.

Drawings

FIG. 1 is a cross-sectional view of the present invention.

FIG. 2 is an enlarged view of a portion of the gear engagement of the present invention.

FIG. 3 is an enlarged view of the integral housing engagement of the present invention.

Figure 4 is a side view of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a spline clutch comprises an outer belt pulley 1, an upper shell 2, a limiting block 3, a bolt 4, a top cover 5, a small dust ring 6, a spiral clamp spring 7, a gear shaft 8, a return spring 9, a bearing 10, a shaft 11, an inner gear sleeve 12, spline teeth 13, a return spring limiting hole 14, a wedge connection 15, a key groove 16 and a large dust ring 17.

According to the utility model, the belt pulley is utilized to drive the outer belt pulley 1 by power generated by the automobile auxiliary engine, the outer belt pulley 1 is fixedly connected with the inner gear sleeve 12 through a key, the air cylinder generates air pressure to push the gear shaft 8, the spline teeth 13 arranged in the inner gear sleeve 12 are meshed with the gear shaft 8 to drive the gear shaft 8 to rotate, the gear shaft 8 is fixed on the shaft 11, and the shaft 11 is connected with the key through the key slot 16 to drive the fan to work. One end of the reset spring 9 is fixedly connected with a reset spring limiting hole 14 arranged on the limiting block, the other end of the reset spring 9 is in contact with the end face of the gear shaft 8, when the cylinder is disconnected, the reset spring 9 flicks the gear shaft 8, the gear is disconnected from being meshed, and the whole clutch stops working. The outer pulley 1 is connected to a shaft 11 through a bearing 10, and when the gear is disconnected, idling is realized. The bearing 10 utilizes the spiral jump ring 7 to fix the axial position, and the spiral jump ring 7 is buckled with the epaxial draw-in groove that sets up. One end of the outer belt wheel 1 is connected with the connecting part of the upper shell 2 by a concave-convex surface through a wedge connection 15, and the other end is sealed with the shaft 11 by a large dust ring 17. The upper shell 2 is connected with the end part of the shaft and is hermetically connected by a small dustproof ring 6. The top end of the clutch and the upper end of the upper shell 2 are connected with a top cover 5 through bolts 4. Go up casing 2 and utilize cascaded bearing overall arrangement, stopper 3 separates the bearing position and is connected with the axle.

The principle is as follows:

the belt wheel is connected with an auxiliary engine of the sweeper through a belt connection to drive the belt wheel to rotate, and when the clutch needs to work, the air cylinder is connected to push the outer gear shaft to be meshed with the spline teeth of the inner gear sleeve, so that the shaft of the clutch is driven to rotate, and the shaft drives an external accessory to work. When the accessory needs to stop working, the air cylinder is disconnected, the outer gear shaft is bounced off by the reset spring fixed on the limiting block, the outer gear shaft is disconnected from and meshed with the spline teeth of the inner gear sleeve, the belt pulley idles, and the accessory stops working. The outside casing passes through the bearing and is connected fixedly with the hub connection, passes through the concave-convex surface cooperation with the belt pulley and is connected, neither influences the rotation of belt pulley, the entering of the external dust of prevention that also can be fine. And dust blocking rings are arranged at two ends of the clutch to better isolate the external environment. The bearing and the shaft are connected by adopting the spiral snap spring, so that a larger axial force is resisted, and the generation of clutch faults is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (1)

1. A spline clutch is characterized by comprising an outer belt pulley (1), an upper shell (2), a limiting block (3), a bolt (4), a top cover (5), a small dust ring (6), a spiral clamp spring (7), a gear shaft (8), a reset spring (9), a bearing (10), a shaft (11), an inner gear sleeve (12), spline teeth (13), a reset spring limiting hole (14), a wedge connection (15), a key groove (16) and a large dust ring (17);

the device utilizes the belt pulley to drive the outer belt pulley (1) through the power generated by the auxiliary engine of the automobile, and the outer belt pulley (1) is fixedly connected with the inner gear sleeve (12) through a key; spline teeth (13) arranged inside the inner gear sleeve (12) are meshed with the gear shaft (8) to drive the gear shaft (8) to rotate; the gear shaft (8) is fixed on the shaft (11), and the shaft (11) is connected with a key through a key slot (16); a return spring limiting hole (14) is formed in the limiting block, one end of the return spring (9) is fixedly connected, and the other end of the return spring (9) is in contact with the end face of the gear shaft (8); the outer belt wheel (1) is connected with a shaft (11) through a bearing (10); the bearing (10) fixes the axial position by using the spiral clamp spring (7), and the spiral clamp spring (7) is buckled with a clamping groove arranged on the shaft (11); one end of the outer belt wheel (1) is connected with the upper shell (2) through a wedge connection (15) to form a concave-convex surface, and the other end of the outer belt wheel is sealed with the shaft (11) through a large dust ring (17); the upper shell (2) is connected with the end part of the shaft and is hermetically connected by a small dustproof ring (6); the upper end of the upper shell (2) is connected with a top cover (5) through a bolt (4); go up casing (2) and utilize cascaded bearing overall arrangement, stopper (3) separate the bearing position and are connected with axle (11).

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