CN216478387U

CN216478387U - Engineering machine tool is with durable sprocket shaft of easily installing

Info

Publication number: CN216478387U
Application number: CN202122444562.3U
Authority: CN
Inventors: 王德忠; 何玉才; 王明晖
Original assignee: Yancheng Huanyu Automotive Parts Manufacturing Co ltd
Current assignee: Yancheng Huanyu Automotive Parts Manufacturing Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-05-10
Anticipated expiration: 2031-09-25

Abstract

The utility model discloses a durable and easily-installed chain wheel shaft for engineering machinery, which comprises a flange, a first shaft section, a first spline, a second shaft section, a second spline and a shaft head, wherein the first shaft section, the second shaft section and the shaft head are coaxially arranged, the shaft diameters are sequentially reduced, the flange is coaxially arranged at one end of the first shaft section, the first spline is arranged on the first shaft section, the second spline is arranged on the second shaft section, external threads are arranged on the outer end surface of the shaft head, and an involute spline is arranged on the chain wheel shaft; the diameter of the tooth root of the spline is consistent with that of the connecting shaft section, so that the rapid assembly of the chain wheel shaft is realized, the assembly efficiency is improved, and the teeth on the spline are prevented from being damaged in the assembly process.

Description

Engineering machine tool is with durable sprocket shaft of easily installing

Technical Field

The utility model relates to the field of engineering equipment accessories, in particular to a durable and easily-installed chain wheel shaft for engineering machinery.

Background

The chain wheel shaft is used as an important component in the technical field of mechanical equipment, and is required to be used as a transmission part in a plurality of devices, and the chain wheel shaft is also one of key factors influencing the safe and reliable operation of a transmission machine. A sprocket shaft is a mechanical part that supports and rotates with a rotating part to transmit motion, torque or bending moment, and is typically a metal round bar, with various sections that may have different diameters. The sprocket shaft among the prior art can transmit axial force at the working process, and the sprocket shaft warp easily, influences work normal use, and the sprocket shaft is according to stress concentration, and in practical application, fracture damage often appears in the spline section of installation cooperation and transmission torque, has the potential safety hazard. In order to solve the above problems, scientific research institutions and scientific personnel of enterprises continuously research and explore, and improve and innovate by using modern science and technology, although the technology is advanced, the technical problems which are not overcome in practical application still exist.

Disclosure of Invention

The utility model aims to overcome the defects and provides a durable and easily-installed chain wheel shaft for engineering machinery, which is provided with an involute spline, has the advantages of strong bearing capacity, easy automatic centering and high installation precision, and is beneficial to prolonging the service life of the chain wheel shaft; the diameter of the tooth root of the spline is consistent with that of the connecting shaft section, so that the rapid assembly of the chain wheel shaft is realized, the assembly efficiency is improved, and the teeth on the spline are prevented from being damaged in the assembly process.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides an engineering machine tool is with durable sprocket shaft of easily installing, which comprises a flange, first shaft segment, first spline, the second shaft segment, the second spline, the spindle nose, first shaft segment, the coaxial setting of second shaft segment and spindle nose, and the axle diameter reduces in proper order, the coaxial one end that sets up at first shaft segment of flange, be equipped with the screw hole on the flange, be equipped with first spline on the outer terminal surface that is close to second shaft segment department on the first shaft segment, the tooth root diameter of first spline is unanimous with the diameter of second shaft segment, be equipped with the second spline on the outer terminal surface that is close to spindle nose department on the second shaft segment, the tooth root diameter of second spline is unanimous with the diameter of spindle nose, be equipped with the external screw thread on the outer terminal surface of spindle nose.

Preferably, the first spline is a 30 ° involute spline.

Preferably, the second spline is a 30 ° involute spline.

The technical principle adopted by the utility model for solving the technical problems is as follows: aiming at the defects of the chain wheel shaft in the prior art, the involute type spline is arranged on the outer edges of the first shaft section and the second shaft section, has the advantages of strong bearing capacity, easiness in automatic centering and high mounting precision, and is beneficial to increasing the rigidity of the shaft, so that the maximum torsion moment born by the spline section of the chain wheel shaft is greatly improved, and the service life of the chain wheel shaft is greatly prolonged. When the shaft diameter is designed, the diameter of the tooth root of the first spline is consistent with that of the second shaft section, the diameter of the tooth root of the second spline is consistent with that of the shaft head, and in the assembling process, the chain wheel is guided into the chain wheel shaft through the shaft head and the smooth surface on the second shaft section, so that the teeth of the internal spline on the chain wheel are automatically aligned with the teeth of the first spline and the second spline along the shaft head and the second shaft section. In the assembling process, the shaft head and the first shaft section at the end part of the chain wheel shaft are contacted with the chain wheel, the chain wheel is pushed along the first shaft section of the chain wheel shaft, the first shaft section guides the teeth on the inner wall of the chain wheel to be smoothly meshed with the first spline, and the first spline teeth of the chain wheel shaft and the tooth groove on the inner wall of the chain wheel can generate a trace axial automatic alignment action along with the pushing of the chain wheel shaft, so that the quick and accurate assembling of the first spline of the chain wheel shaft and the chain wheel is realized. The assembly process of the second spline is the same as the principle of the first spline, and the shaft head of the chain wheel shaft pushes the chain wheel to be assembled with the second spline, so that the whole assembly process is completed.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the involute splines are arranged on the outer edges of the first shaft section and the second shaft section, so that the involute splines have the advantages of strong bearing capacity, easiness in automatic centering and high installation precision, the maximum torsion moment born by the spline sections of the chain wheel shaft is greatly improved, and the service life of the shaft head of the transmission shaft is greatly prolonged.

(2) The diameter of the tooth root of the first spline is consistent with that of the second shaft section, and the diameter of the tooth root of the second spline is consistent with that of the shaft head, so that the chain wheel is convenient to mount, a tighter chain wheel can conveniently slide in, the chain wheel and the chain wheel shaft can be conveniently mounted and fixed, and the chain wheel is prevented from slipping and loosening.

(3) The utility model can transmit excessive load and power, has high axial rigidity, high feeding speed, high precision, scientific and reasonable design, convenient installation and long service life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the right-view structure of the present invention;

in the figure: 1. a flange; 11. a threaded hole, 2 and a first shaft section; 3. a first spline; 4. a second shaft section; 5. a second spline; 6. the shaft head.

Detailed Description

The utility model is further described below with reference to the following figures and examples:

in fig. 1 and 2, the durable and easily-installed chain wheel shaft for the engineering machinery comprises a flange 1, a first shaft section 2, a first spline 3, a second shaft section 4, a second spline 5 and a shaft head 6, wherein the first shaft section 2, the second shaft section 4 and the shaft head 6 are coaxially arranged, the shaft diameters of the first shaft section 2, the second shaft section 4 and the shaft head 6 are sequentially reduced, the flange 1 is coaxially arranged at one end of the first shaft section 2, a threaded hole 11 is formed in the flange 4, the first spline 3 is arranged on the outer end face, close to the second shaft section 4, of the first shaft section 2, the first spline 3 is a 30-degree involute spline, the diameter of a tooth root of the first spline 3 is consistent with that of the second shaft section 4, and the chain wheel is conveniently guided into the chain wheel shaft through smooth faces on the shaft head 6 and the second shaft section 4 in the assembling process, so that teeth of the internal spline on the chain wheel are automatically aligned with the teeth of the first spline 3 along the shaft head 6 and the second shaft section 4. The second spline 5 is arranged on the outer end face of the second shaft section 4 close to the shaft head 6, the second spline 5 is a 30-degree involute spline, the diameter of the tooth root of the second spline 5 is consistent with that of the shaft head 6, in the assembling process, the shaft head 6 at the end part of the chain wheel shaft is in contact with the chain wheel, the chain wheel is pushed along the shaft head 6 of the chain wheel shaft, the teeth on the inner wall of the chain wheel are guided by the shaft head 6 to be smoothly meshed with the second spline 5, the teeth on the second spline 5 of the chain wheel shaft and the tooth grooves on the inner wall of the chain wheel can generate a micro axial automatic alignment action along with the pushing of the chain wheel shaft, and therefore the quick and accurate assembling of the second spline 5 of the chain wheel shaft and the chain wheel is realized. External threads are arranged on the outer end face of the shaft head 6. The involute splines are arranged on the outer edges of the first shaft section 2 and the second shaft section 4, have the advantages of strong bearing capacity, easy automatic centering and high installation precision, and are beneficial to increasing the rigidity of the shaft, so that the maximum torsion moment born by the spline sections of the chain wheel shaft is greatly improved, and the service life of the chain wheel shaft is greatly prolonged.

Claims

1. The utility model provides an engineering machine tool is with durable sprocket shaft of easily installing, includes flange, first shaft part, first spline, second shaft part, second spline, spindle nose, its characterized in that: first shaft section, the coaxial setting of second shaft section and spindle nose, and the axle diameter reduces in proper order, the coaxial one end that sets up at first shaft section of flange, be equipped with the screw hole on the flange, be equipped with first spline on the outer terminal surface that is close to second shaft section department on the first shaft section, the tooth root diameter of first spline is unanimous with the diameter of second shaft section, be equipped with the second spline on the outer terminal surface that is close to spindle nose department on the second shaft section, the tooth root diameter of second spline is unanimous with the diameter of spindle nose, be equipped with the external screw thread on the outer terminal surface of spindle nose.

2. The durable and easily-installed chain wheel shaft for the engineering machinery as claimed in claim 1, wherein: the first spline is a 30-degree involute spline.

3. The durable and easily-installed chain wheel shaft for the engineering machinery as claimed in claim 1, wherein: the second spline is a 30-degree involute spline.