Wear-resistant transmission shaft head

Abstract

The utility model relates to the technical field of shaft heads, and discloses a wear-resistant transmission shaft head which comprises a connecting shaft, a shaft head seat is fixedly mounted at the top end of the connecting shaft, and a supporting shaft is fixedly mounted on the top side of the shaft head seat. When the spline column on the outer side of the spline shaft is damaged and needs to be replaced, the connecting bolt is rotated and taken down, then the fixing plate is taken down, the damaged spline column is conveniently pulled out from the inner side of the mounting groove, then a new spline column is clamped and mounted, mounting is convenient and fast, overall maintenance of the shaft head is avoided, and the cost is reduced. In addition, the connecting stability between the spline shaft and the spline column is improved by clamping and fixing the riveting sleeve on the bottom side of the fixing plate with the first riveting groove and the second riveting groove, the outer side of the spline column and the outer side of the limiting spline are coated with the nanometer polymerization ceramic wear-resistant coatings correspondingly, and the spline column made of the high manganese steel material is matched, so that the service life of the spline shaft is prolonged, and the service life of the spline shaft is prolonged. And the overall wear resistance and the service life of the transmission shaft head are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft heads, in particular to a wear-resistant transmission shaft head. Background Art

[0002] The shaft head is an important component in the transmission shaft structure. One end of the shaft head with splines is connected to the telescopic sleeve of the transmission shaft, and the other end is connected to the shaft tube of the transmission shaft. The distance change of the system is achieved by sliding between the splines.

[0003] During the use of the shaft head, the splines of the shaft head and the splines in the telescopic sleeve often slide and rub against each other, which is prone to wear. Long-term use can easily lead to severe wear and damage, reducing the service life. In addition, during use, the excessive torque generated can easily cause excessive torque on the connection parts of the splines, causing cracking and damage. Repair and replacement are troublesome and time-consuming, and the overall replacement leads to increased cost of use. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a wear-resistant transmission shaft head, which has high overall wear resistance and stability, and is convenient for replacing splines, improving maintenance efficiency and convenience, while reducing the cost of use, thereby solving the above technical problems.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant transmission shaft head, comprising a connecting shaft, a shaft head seat is fixedly installed on the top end of the connecting shaft, a support shaft is fixedly installed on the top side of the shaft head seat, a limit seat is fixedly installed on the top end of the support shaft, a spline shaft is provided on the top side of the limit seat, a spline column is installed on the outer side of the spline shaft through snap-fitting, a fixing plate is installed on the top side of the spline shaft through snap-fitting, and a connecting bolt is connected between the fixing plate and the spline shaft through a threaded connection.

[0008] Preferably, the shaft head seat is a convex structure, and a reinforcement rod is fixedly installed between the shaft head seat and the limit seat. There are a total of six reinforcement rods that are arranged in a circular and equidistant manner and installed between the shaft head seat and the limit seat.

[0009] Through the above technical solution, under the action of six reinforcement rods installed in an equidistant arrangement in a ring, the stability of the support part is improved, thereby avoiding breakage at the connection part between the shaft head seat and the limit seat, which leads to a reduction in service life.

[0010] Preferably, a plurality of groups of limiting splines are arranged in an equidistant annular pattern on the inner side of the top side of the limiting seat, and limiting spline grooves are provided between the splines. A positioning groove is provided on the inner side of the limiting seat, and a spline shaft is fixed to the inner side of the positioning groove by welding.

[0011] Through the above technical solution, under the action of the limit seat and the limit spline, it is beneficial to limit one end of the shaft body that needs to be connected, thereby improving the stability and torque bearing capacity after connection, and further improving the service life of the transmission shaft head.

[0012] Preferably, an installation groove is provided on the outer side of the spline shaft, and the size and shape of the installation groove match the spline column respectively. A No. 1 rivet groove is provided on the top side of the spline shaft, and a threaded hole is provided on the top side of the spline shaft. A positioning seat is fixedly installed on the bottom side of the spline shaft, and the size and shape of the positioning seat match the positioning groove.

[0013] Through the above technical solution, when the spline column on the outside of the spline shaft is damaged and needs to be replaced, the damaged spline column is pulled out from the inside of the installation groove, and then the new spline column is snap-fitted and installed. The installation is convenient and quick, avoiding the overall maintenance of the shaft head, which increases the cost of use.

[0014] Preferably, the spline column is slightly wider than the mounting groove, and there are a number of spline columns, which are arranged in a circular and equidistant manner and installed on the inner side of the mounting groove. A No. 2 rivet groove is provided on the top side of the spline column, and the outer sides of the spline column and the limiting spline are respectively coated with a nano-polymer ceramic wear-resistant coating, and the spline column is made of high manganese steel.

[0015] Through the above technical solution, during use, since the outer sides of the spline column and the limit spline are respectively coated with nano-polymer ceramic wear-resistant coatings, and are matched with the spline column made of high manganese steel material, the wear resistance and anti-extrusion properties of the high manganese steel material and the nano-polymer ceramic wear-resistant coating are beneficial to improving the overall wear resistance and service life of the transmission shaft head.

[0016] Preferably, a rivet sleeve is fixedly installed on the bottom side of the fixing plate, and the size and shape of the rivet sleeve respectively match the No. 2 rivet groove and the No. 1 rivet groove, and a through hole is opened on the top side of the fixing plate, and the size and shape of the through hole match the connecting bolt.

[0017] Through the above technical solution, during the disassembly, assembly and replacement process, the rivet sleeve on the bottom side of the fixed plate is engaged and fixed with the No. 1 rivet groove and the No. 2 rivet groove, thereby improving the connection stability between the spline shaft and the spline column, and by rotating and removing the connecting bolts, and then removing the fixed plate, the damaged spline column can be quickly and easily replaced.

[0018] Compared with the prior art, the present invention provides a wear-resistant transmission shaft head with the following beneficial effects:

[0019] 1. The utility model clamps and connects the shaft body to be connected with the spline column on the outside of the spline shaft and the limiting spline on the inside of the limiting seat through the splines provided inside and outside, so that the connection is convenient and quick. Under the action of the limiting seat and the limiting spline, it is beneficial to limit one end of the shaft body to be connected, thereby improving the stability and torque bearing capacity after the connection, and further improving the service life. In addition, since the outer sides of the spline column and the limiting spline are respectively coated with nano-polymer ceramic wear-resistant coatings, and the spline column is made of high manganese steel material, it is beneficial to improve the wear resistance and service life of the entire transmission shaft head.

[0020] 2. When the spline column on the outside of the spline shaft is damaged and needs to be replaced, the utility model can be used to rotate and remove the connecting bolts, and then remove the fixing plate, so that the damaged spline column can be easily pulled out from the inside of the installation groove, and then the new spline column can be snap-fitted and installed. The installation is convenient and quick, avoiding the need for overall maintenance of the shaft head, which leads to increased use costs. In addition, the rivet sleeve on the bottom side of the fixing plate is snap-fitted and fixed with the No. 1 rivet groove and the No. 2 rivet groove, thereby improving the connection stability between the spline shaft and the spline column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the limit seat of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the spline shaft and the fixed plate of the utility model;

[0025] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the spline shaft of the utility model.

[0026] Among them: 1. Connecting shaft; 2. Shaft head seat; 3. Support shaft; 4. Limit seat; 5. Spline shaft; 6. Spline column; 7. Fixing plate; 8. Connecting bolt; 301. Reinforcement rod; 401. Limit spline; 402. Limit spline groove; 403. Positioning groove; 501. Mounting groove; 502. No. 1 rivet groove; 503. Threaded hole; 504. Positioning seat; 601. No. 2 rivet groove; 701. Riveting sleeve; 702. Through hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1:

[0029] like Figure 1-5 As shown, the utility model provides a wear-resistant transmission shaft head, including a connecting shaft 1, a shaft head seat 2 is fixedly installed on the top of the connecting shaft 1, a support shaft 3 is fixedly installed on the top side of the shaft head seat 2, a limit seat 4 is fixedly installed on the top of the support shaft 3, a spline shaft 5 is provided on the top side of the limit seat 4, a spline column 6 is installed on the outer side of the spline shaft 5 through snap-fitting, a fixing plate 7 is installed on the top side of the spline shaft 5 through snap-fitting, and a connecting bolt 8 is threadedly connected between the fixing plate 7 and the spline shaft 5.

[0030] Specifically, the shaft head seat 2 has a convex structure, and a reinforcement rod 301 is fixedly installed between the shaft head seat 2 and the limit seat 4. A total of six reinforcement rods 301 are arranged in a circular and equidistant manner and installed between the shaft head seat 2 and the limit seat 4. The advantage is that the six reinforcement rods 301 arranged in a circular and equidistant manner are conducive to improving the stability of the support part, thereby avoiding the connection between the shaft head seat 2 and the limit seat 4 from breaking, which leads to a reduction in service life.

[0031] Specifically, the top of the limit seat 4 is provided with a plurality of equidistantly arranged groups of limit splines 401 in a circular pattern. Limit spline grooves 402 are provided between the splines 401. A positioning groove 403 is provided on the inside of the limit seat 4. The spline shaft 5 is welded to the inside of the positioning groove 403. Advantageously, the limit seat 4 and the limit splines 401 facilitate positioning of one end of the shaft to be connected, thereby improving the stability and torque resistance of the connection.

[0032] Specifically, the outer side of the spline shaft 5 begins to have a mounting groove 501, the size and shape of which match the spline column 6. The top side of the spline shaft 5 is provided with a No. 1 rivet groove 502, the top side of the spline shaft 5 is provided with a threaded hole 503, and the bottom side of the spline shaft 5 is fixedly mounted with a positioning seat 504, the size and shape of which match the positioning groove 403. The advantage is that the spline column 6 can be removed from the inner side of the mounting groove 501 and then a new spline column 6 is snapped in and installed, which is convenient and quick, avoiding the need for repairing the entire shaft head, which would increase the cost of use.

[0033] Example 2:

[0034] like Figure 1-5As shown, as an improvement to the previous embodiment. Specifically, the spline column 6 is slightly wider than the installation groove 501, and there are a total of several spline columns 6, which are respectively arranged in a circular and equidistant manner and installed on the inner side of the installation groove 501. The top side of the spline column 6 is provided with a No. 2 rivet groove 601, and the outer sides of the spline column 6 and the limiting spline 401 are respectively coated with a nano-polymer ceramic wear-resistant coating, and the spline column 6 is made of high manganese steel material. The advantage is that since the outer sides of the spline column 6 and the limiting spline 401 are respectively coated with a nano-polymer ceramic wear-resistant coating, combined with the spline column 6 made of high manganese steel material, the wear resistance and service life of the transmission shaft head as a whole are improved according to the wear-resistant and anti-extrusion properties of the high manganese steel material and the nano-polymer ceramic wear-resistant coating.

[0035] Specifically, a rivet sleeve 701 is fixedly mounted on the bottom side of the fixing plate 7. The size and shape of the rivet sleeve 701 match the No. 2 rivet groove 601 and the No. 1 rivet groove 502, respectively. A through hole 702 is formed on the top side of the fixing plate 7. The size and shape of the through hole 702 match the size and shape of the connecting bolt 8. Advantageously, the rivet sleeve 701 on the bottom side of the fixing plate 7 is engaged and fixed with the No. 1 rivet groove 502 and the No. 2 rivet groove 601, thereby improving the connection stability between the spline shaft 5 and the spline column 6. Furthermore, by rotating and removing the connecting bolt 8 and then removing the fixing plate 7, a damaged spline column 6 can be quickly and easily replaced.

[0036] When in use, the shaft body to be connected is respectively clamped and connected with the spline column 6 on the outside of the spline shaft 5 and the limiting spline 401 on the inside of the limiting seat 4 through the splines arranged inside and outside, so as to be convenient and quick to connect and use, and under the action of the limiting seat 4 and the limiting spline 401, it is beneficial to limit one end of the shaft body to be connected, thereby improving the stability and torsion bearing capacity after connection, and further improving the service life. In addition, since the outer sides of the spline column 6 and the limiting spline 401 are respectively coated with nano-polymer ceramic wear-resistant coatings, and the spline column 6 made of high manganese steel material is matched, there is It is beneficial to improve the overall wear resistance and service life of the transmission shaft head. When the spline column 6 on the outside of the spline shaft 5 is damaged and needs to be replaced, the connecting bolt 8 is rotated and removed, and then the fixing plate 7 is removed, so that the damaged spline column 6 can be easily pulled out from the inside of the installation groove 501, and then the new spline column 6 can be snap-fitted and installed. The installation is convenient and quick, avoiding the overall maintenance of the shaft head, which leads to increased use costs. In addition, the rivet sleeve 701 on the bottom side of the fixing plate 7 is snap-fitted and fixed with the No. 1 rivet groove 502 and the No. 2 rivet groove 601, thereby improving the connection stability between the spline shaft 5 and the spline column 6.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant transmission shaft head, comprising a connecting shaft (1), characterized in that: The top end of the connecting shaft (1) is fixedly mounted with a shaft head seat (2), the top side of the shaft head seat (2) is fixedly mounted with a support shaft (3), the top end of the support shaft (3) is fixedly mounted with a limit seat (4), the top side of the limit seat (4) is provided with a spline shaft (5), the outer side of the spline shaft (5) is mounted with a spline column (6) by snap-fitting, the top side of the spline shaft (5) is mounted with a fixing plate (7) by snap-fitting, and a connecting bolt (8) is connected between the fixing plate (7) and the spline shaft (5) by threaded connection.

2. The wear-resistant transmission shaft head according to claim 1, characterized in that: The shaft head seat (2) is a convex structure, and a reinforcement rod (301) is fixedly installed between the shaft head seat (2) and the limit seat (4). The reinforcement rods (301) are provided with six pieces and are arranged in an annular manner and equidistantly between the shaft head seat (2) and the limit seat (4).

3. The wear-resistant transmission shaft head according to claim 1, characterized in that: A plurality of groups of limiting splines (401) are arranged in an equidistant manner in an annular pattern on the inner side of the top side of the limiting seat (4), and limiting spline grooves (402) are provided between the splines (401). A positioning groove (403) is provided on the inner side of the limiting seat (4), and a spline shaft (5) is fixed to the inner side of the positioning groove (403) by welding.

4. The wear-resistant transmission shaft head according to claim 3, characterized in that: The outer side of the spline shaft (5) is provided with a mounting groove (501), the size and shape of the mounting groove (501) respectively match the spline column (6), the top side of the spline shaft (5) is provided with a No. 1 rivet groove (502), the top side of the spline shaft (5) is provided with a threaded hole (503), and the bottom side of the spline shaft (5) is fixedly provided with a positioning seat (504), the size and shape of the positioning seat (504) match the positioning groove (403).

5. The wear-resistant transmission shaft head according to claim 4, characterized in that: The spline column (6) is slightly wider than the installation groove (501), and a plurality of spline columns (6) are provided, which are respectively arranged in an annular manner and equidistantly installed on the inner side of the installation groove (501). A second rivet groove (601) is opened on the top side of the spline column (6). The outer sides of the spline column (6) and the limiting spline (401) are respectively coated with a nano-polymer ceramic wear-resistant coating. The spline column (6) is made of high manganese steel.

6. The wear-resistant transmission shaft head according to claim 5, characterized in that: A riveting sleeve (701) is fixedly installed on the bottom side of the fixing plate (7), and the size and shape of the riveting sleeve (701) respectively match the No. 2 riveting groove (601) and the No. 1 riveting groove (502), and a through hole (702) is opened on the top side of the fixing plate (7), and the size and shape of the through hole (702) match the connecting bolt (8).

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