Motor spline housing

Abstract

The utility model discloses a motor spline housing, and relates to the field of mechanical parts. The device comprises a sleeve with a central through hole, an internal spline is arranged on the inner wall of the sleeve, and chamfers are arranged at the two ends of the inner wall of the sleeve; the outer wall of the sleeve is sleeved with a protective sleeve, the two ends of the protective sleeve protrude out of the two ends of the sleeve, the outer wall of the protective sleeve is sleeved with a thermal shrinkage rubber sleeve, the two ends of the thermal shrinkage rubber sleeve protrude out of the two ends of the protective sleeve, and hoops are arranged at the two ends of the thermal shrinkage rubber sleeve. The utility model has the beneficial effects that the chamfers are arranged at the two ends of the spline housing to provide guide surfaces for assembly and improve the assembly smoothness, the protective sleeve and the thermal shrinkage rubber sleeve are additionally arranged outside the spline housing to prevent the spline housing from being exposed and damaged, and the thermal shrinkage rubber sleeve is contracted and attached to the shaft to prevent impurities from invading into the spline housing, so that the service life of the spline housing is prolonged. The use safety is improved; and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to mechanical accessories, in particular to a motor spline sleeve. Background Art

[0002] When the motor is in use, a spline sleeve is used to transfer the torque generated by its operation to the shaft or other transmission parts that mesh with it through its internal splines. The commonly used spline sleeve is a sleeve with a central through hole with an internal spline, and its structure is simple. However, when the spline sleeve is connected to other transmission shafts, the matching setting of the spline sleeve and the transmission shaft requires accurate center docking of the spline sleeve and the transmission shaft during assembly to ensure smooth assembly, otherwise it will cause assembly problems. At the same time, the single structure of the spline sleeve and its direct exposure to the use environment during use are easy to be damaged, and impurities are easily invaded into the spline sleeve, affecting its performance and reducing its service life. Utility Model Content

[0003] The utility model provides a motor spline sleeve to solve the technical problems of poor assembly, easy damage and easy intrusion of impurities in the spline sleeve. Chamfers are set at both ends of the spline sleeve to provide guide surfaces for assembly, thereby improving the smoothness of assembly. The protective sleeve and heat shrink rubber sleeve are added to the outside of the spline sleeve to prevent the spline sleeve from being exposed and damaged, and the shrinkage of the heat shrink rubber sleeve fits on the shaft to prevent impurities from intruding into the spline sleeve, thereby improving the safety of use and extending its service life.

[0004] The technical solution adopted by the utility model is: to provide a motor spline sleeve, including a sleeve provided with a central through hole, the inner wall of the sleeve is provided with an internal spline, and both ends of the inner wall of the sleeve are provided with chamfers; the outer wall of the sleeve is provided with a protective sleeve, and both ends of the protective sleeve protrude from the two ends of the sleeve, the outer wall of the protective sleeve is provided with a heat shrinkable rubber sleeve, and both ends of the heat shrinkable rubber sleeve protrude from the two ends of the protective sleeve, and both ends of the heat shrinkable rubber sleeve are provided with clamps.

[0005] The chamfers set at both ends of the sleeve provide guide surfaces for the assembly of other transmission shafts, which helps to insert other transmission shafts into the sleeve and accurately align the center of the sleeve, thereby improving the simplicity and efficiency of assembly. A protective sleeve is added to the outside of the sleeve, which can withstand and absorb external impact force, improve the protection effect of the spline sleeve and avoid damage. The two ends of the protective sleeve protrude from the two ends of the sleeve, thereby avoiding exposure of the two ends of the sleeve and ensuring the protection effect of the two ends of the sleeve. A heat shrinkable rubber sleeve is provided on the protective sleeve. After the sleeve is assembled with the motor shaft and other transmission shafts, the heat shrinkable rubber sleeve is heated to shrink and fit on the surface of the sleeve. In addition, the two ends of the heat shrinkable rubber sleeve protrude from the two ends of the protective sleeve, so that its two ends also shrink and fit on the motor shaft and other transmission shafts, thereby sealing the two ends of the sleeve, avoiding impurities from invading the sleeve, improving the protection effect of the spline sleeve, and extending its service life. By adding clamps at both ends of the heat shrinkable rubber sleeve, the assembly effect of the heat shrinkable rubber sleeve is enhanced and the reliability of use is improved.

[0006] To further optimize the technical solution, the outer wall of the sleeve is provided with an external thread, the inner wall of the protective sleeve is provided with an internal thread, and the protective sleeve is threadedly connected to the sleeve.

[0007] The protective sleeve is sleeved on the sleeve in a threaded connection manner, which is easy to assemble and stable and reliable to use.

[0008] To further optimize the technical solution, the protective cover is made of rubber.

[0009] The rubber protective sleeve improves the sealing performance with the spline sleeve and effectively protects against moisture and chemical corrosion, extending the service life of the spline sleeve. The rubber material has good shock absorption and sound absorption effects, reducing the vibration and noise of the spline sleeve during operation.

[0010] To further optimize the technical solution, the surface of the heat shrinkable rubber sleeve is provided with a color code.

[0011] Color coding is used to classify and identify spline sleeves, and in subsequent maintenance, operators can quickly find the correct spline sleeve based on the color coding.

[0012] To further optimize the technical solution, the clamp includes a rubber strip, one end of which is fixedly connected to a buckle, and the other end of the rubber strip passes through the buckle and is locked and fixed on the buckle by means of a locking member.

[0013] After the rubber strip is wound around the outer wall of the heat shrinkable rubber sleeve, its free end is passed through the buckle, and the rubber strip is tightened to tighten the heat shrinkable rubber sleeve, and then it is locked and fixed with a locking piece, so the heat shrinkable rubber sleeve is fixed. The operation is simple and flexible to use, and the rubber strip avoids damage to the heat shrinkable rubber sleeve, so it is safe to use.

[0014] To further optimize the technical solution, the locking member includes a tightening bolt threadably connected to the buckle, and the tightening bolt penetrates into the buckle and abuts against the rubber strip.

[0015] The locking piece abuts and fixes the rubber strip by utilizing a tightening bolt connected to the snap thread, which is easy to operate and reliable to use.

[0016] The beneficial effects of the utility model are:

[0017] 1. Chamfers are set at both ends of the spline sleeve, which extend into the sleeve at an acute angle, thereby providing a guide surface for the assembly of the motor shaft and other transmission shafts, helping other transmission shafts to be inserted into the sleeve and accurately align the center of the sleeve, thereby improving the simplicity and efficiency of assembly;

[0018] 2. The sleeve is threadedly connected to the protective sleeve, which is used to withstand and absorb external impact force to avoid damage to the sleeve. The rubber material of the protective sleeve enhances the sealing of the sleeve, effectively prevents moisture and chemical corrosion, and prolongs the service life of the spline sleeve. The rubber material has good shock absorption and sound absorption effects, reducing the vibration and noise of the spline sleeve during operation. The two ends of the protective sleeve protrude from the two ends of the sleeve to avoid protection at both ends of the sleeve, thereby ensuring the protection effect of both ends;

[0019] 3. After the spline sleeve is assembled with the motor shaft and the transmission shaft, the heat shrinkable rubber sleeve outside the protective sleeve is heated to shrink and fit on the outer surface of the protective sleeve. At the same time, the two ends protruding from the protective sleeve shrink and fit on the motor shaft and the transmission shaft, thereby sealing the two ends of the spline sleeve to prevent impurities from invading the spline sleeve, enhancing the protection effect of the spline sleeve and prolonging the service life. In addition, the surface of the heat shrinkable rubber sleeve is color-coded to classify and identify the spline sleeve, thereby improving the flexibility of use.

[0020] 4. After the heat shrinkable rubber sleeve is shrunk on the motor shaft and the transmission shaft, the rubber strip is wound around the heat shrinkable rubber sleeve, and the free end of the rubber sleeve is passed through the buckle, and the rubber strip is tightened to shrink the heat shrinkable rubber sleeve. After tightening the heat shrinkable rubber sleeve, tighten the bolts to fix the rubber strip, so as to fix the heat shrinkable rubber sleeve and improve its reliability. The rubber strip can avoid damage to the heat shrinkable rubber sleeve, which is safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the use structure of the motor spline sleeve of this embodiment;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the motor spline sleeve of this embodiment;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the sleeve and the protective cover of this embodiment;

[0024] Figure 4Schematic diagram of the structure of the clamp of this embodiment.

[0025] In the figure, 1, sleeve; 101, internal spline; 102, chamfer; 103, external thread; 2, protective sleeve; 201, internal thread; 3, heat shrink rubber sleeve; 4, clamp; 401, rubber strip; 402, buckle; 403, tightening bolt. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Please refer to the attached Figure 2 , Attachment Figure 3 A motor spline sleeve comprises a sleeve 1 provided with a central through hole, an inner spline 101 is provided on the inner wall of the sleeve 1, and chamfers 102 are provided at both ends of the inner wall of the sleeve 1, and the chamfers 102 extend inward from the two ends of the sleeve 1 at an acute angle, thereby forming a closing structure. When the spline sleeve is transferred, the chamfers 102 on the sleeve 1 provide a guide surface for other transmission components, which helps to more accurately align the center with other transmission components, thereby making the assembly faster and more efficient;

[0028] Please refer to the attached Figure 2 , Attachment Figure 3 The outer wall of the spline sleeve is provided with a protective sleeve 2, the outer wall of the sleeve 1 is provided with an external thread 103, and the inner wall of the protective sleeve 2 is provided with an internal thread 201. The protective sleeve 2 and the sleeve 1 are sleeved in a threaded connection manner, which is easy to assemble and improves the stability of its sleeve assembly. The protective sleeve 2 provides protection for the spline sleeve to prevent the spline sleeve from being damaged. The protective sleeve 2 can be made of rubber material. The rubber protective sleeve 2 improves the sealing performance with the spline sleeve and effectively protects against moisture and chemical corrosion, extending the service life of the spline sleeve. The rubber material has good shock absorption and sound absorption effects, reducing the vibration and noise of the spline sleeve during operation. Both ends of the protective sleeve 2 protrude from the two ends of the spline sleeve to avoid the two ends of the spline sleeve from being exposed, thereby ensuring the protection effect on both ends of the spline sleeve.

[0029] Please refer to the attached Figure 1 , Attachment Figure 2 The outer wall of the protective sleeve 2 is provided with a heat shrinkable rubber sleeve 3. After the spline sleeve is assembled with the transmission component, the heat shrinkable rubber sleeve 3 is heated to shrink and fit on the surface of the protective sleeve 2. Both ends of the heat shrinkable rubber sleeve 3 protrude from both ends of the protective sleeve 2, and fit on the surface of the motor shaft and other transmission shafts, so as to seal the two ends of the spline sleeve, prevent impurities from invading the spline sleeve and causing damage to it, improve the safety of the spline sleeve, make the surface of the spline sleeve neat, and improve its aesthetics. The surface of the heat shrinkable rubber sleeve 3 can be customized with color coding for classification and identification of the spline sleeve, and in subsequent maintenance, the operator can quickly find the correct spline sleeve according to the color coding;

[0030] Please refer to the attached Figure 1 , Attachment Figure 4 After the heat shrinkable rubber sleeve 3 is shrunk and fitted on the shaft, a clamp 4 is provided at both ends of the heat shrinkable rubber sleeve 3. The clamp 4 includes a rubber strip 401 wound along the surface of the heat shrinkable rubber sleeve 3. One end of the rubber strip 401 is fixedly connected with a buckle 402. The other end of the rubber strip 401 passes through the buckle 402 and is tightened to shrink the diameter of the rubber strip 401 to tighten the heat shrinkable rubber sleeve 3. Then, a locking member is used to lock the rubber strip 401. The locking member can be a tightening bolt 403, which is tightened on the buckle 402. After the tightening bolt 403 abuts against the rubber strip 401, the rubber strip 401 is locked. The rubber strip 401 is easy to operate to shrink and tighten the heat shrinkable rubber sleeve 3, and it avoids damage to the heat shrinkable rubber sleeve 3. It is safe and flexible to use.

[0031] The working principle of the motor spline sleeve is as follows: chamfers 102 are provided at both ends of the spline sleeve, and the chamfers 102 extend from the end faces of the two ends of the spline sleeve to the inner wall of the spline sleeve at an acute angle. The chamfers 102 provide guide surfaces for the assembly of other transmission shafts, which help to align them with other transmission components more accurately, thereby making the assembly faster and more efficient. The outer wall of the spline sleeve is provided with a protective sleeve 2, which can withstand external force damage such as impact, improve the protection effect on the spline sleeve, and the two ends of the protective sleeve 2 protrude from the two ends of the spline sleeve, thereby avoiding exposure of the two ends of the spline sleeve and ensuring the protection effect on the two ends. At the same time, the outer wall of the protective sleeve 2 is provided with a heat shrinkable rubber sleeve 3, and the spline sleeve and the motor After the output shaft and other transmission shafts are assembled, the heat shrinkable rubber sleeve 3 is heated to shrink and fit on the surface of the protective sleeve 2, and its two ends protrude from the two ends of the protective sleeve 2 respectively. During the shrinking process, it fits on the motor shaft and other transmission shafts, thereby sealing the two ends of the spline sleeve to prevent impurities from invading the spline sleeve, improving its safety in use and extending its service life. Hoops 4 are provided at both ends of the heat shrinkable rubber sleeve 3. After the rubber strip 401 is wound around the heat shrinkable rubber sleeve 3, the free end of the rubber strip 401 passes through the buckle 402, and after shrinking and tightening on the heat shrinkable rubber sleeve 3, the tightening bolt 403 tightens it, thereby enhancing the sealing effect and the tightening and positioning effect of the heat shrinkable rubber sleeve 3, and making it more reliable to use.

Claims

1. A motor spline sleeve, comprising a sleeve (1) provided with a central through hole, wherein the inner wall of the sleeve (1) is provided with an internal spline (101), characterized in that: Both ends of the inner wall of the sleeve (1) are provided with chamfers (102); the outer wall of the sleeve (1) is provided with a protective sleeve (2), both ends of the protective sleeve (2) protrude from both ends of the sleeve (1); the outer wall of the protective sleeve (2) is provided with a heat shrinkable rubber sleeve (3), both ends of the heat shrinkable rubber sleeve (3) protrude from both ends of the protective sleeve (2), and both ends of the heat shrinkable rubber sleeve (3) are provided with clamps (4).

2. A motor spline sleeve according to claim 1, characterized in that: The outer wall of the sleeve (1) is provided with an external thread (103), the inner wall of the protective sleeve (2) is provided with an internal thread (201), and the protective sleeve (2) is threadedly connected to the sleeve (1).

3. A motor spline sleeve according to claim 2, characterized in that: The protective cover (2) is made of rubber.

4. The motor spline sleeve according to claim 1, characterized in that: The surface of the heat shrinkable rubber sleeve (3) is provided with color coding.

5. The motor spline sleeve according to claim 1, characterized in that: The clamp (4) comprises a rubber strip (401), one end of which is fixedly connected to a buckle (402), and the other end of which passes through the buckle (402) and is locked and fixed on the buckle (402) by means of a locking member.

6. The motor spline sleeve according to claim 5, characterized in that: The locking member comprises a tightening bolt (403) threadedly connected to the buckle (402), and the tightening bolt (403) penetrates into the buckle (402) and abuts against the rubber strip (401).

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