Spline transmission structure of motor main shaft

Abstract

The utility model discloses a motor main shaft spline transmission structure which comprises a main shaft body arranged on a plunger motor. A connecting rod is arranged on the main shaft body, a movable sleeve is arranged on the connecting rod, a plurality of groups of spline grooves are uniformly formed in the movable sleeve, a clamping assembly is arranged on the main shaft body, and the movable sleeve is arranged on the connecting rod in a sleeving manner and is matched with the clamping assembly, so that the movable sleeve is positioned on the main shaft body; the main shaft has the advantages that the movable sleeve is evenly provided with the multiple sets of spline grooves and is positioned on the main shaft body, the movable sleeve is driven to rotate when the main shaft body rotates, then power is transmitted through rotation of the multiple sets of spline grooves, and the transmission efficiency is improved; and meanwhile, the movable sleeve and the clamping assembly are used in cooperation, accurate positioning of the movable sleeve on the main shaft body is ensured, and the stability and reliability of the whole transmission structure are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motor main shaft spline transmission structure. BACKGROUND

[0002] In the field of modern industry and mechanical engineering, the plunger motor is widely used in hydraulic systems, mechanical transmission systems and other occasions requiring precise control of rotary motion as an important power transmission component. The plunger motor converts hydraulic energy into mechanical energy through its internal plunger and cylinder structure to realize rotary motion. In the design of the plunger motor, a spline groove is generally provided on the main shaft for power transmission, but the existing spline groove is directly provided on the main shaft and is an integral structure, which is not convenient for subsequent replacement and maintenance. In view of this, the utility model provides a motor main shaft spline transmission structure to solve the above problems. SUMMARY

[0003] The utility model aims at providing a motor main shaft spline transmission structure to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A motor main shaft spline transmission structure, comprising a main shaft body, the main shaft body is arranged on the plunger motor;

[0006] The main shaft body is provided with a connecting rod, the connecting rod is provided with a movable sleeve, a plurality of groups of spline grooves are uniformly provided on the movable sleeve, the main shaft body is provided with a clamping assembly, the movable sleeve is sleeved on the connecting rod and cooperates with the clamping assembly, so that the movable sleeve is positioned on the main shaft body.

[0007] As an improvement of the above technical scheme, the movable sleeve is provided with a first movable cavity and a second movable cavity;

[0008] The connecting rod is adapted to the first movable cavity, the connecting rod is arranged in the first movable cavity, the clamping assembly is adapted to the second movable cavity, and the clamping assembly is arranged in the second movable cavity.

[0009] As an improvement of the above technical scheme, a limiting rod is arranged in the first movable cavity;

[0010] A limiting hole is formed in the connecting rod, the limiting hole is adapted to the limiting rod, the connecting rod is arranged in the first movable cavity, and the limiting rod extends into the limiting hole.

[0011] As an improvement of the above technical scheme, the cross section of the connecting rod and the first movable cavity is polygonal, and the cross section of the limiting rod and the limiting hole is polygonal.

[0012] As the improvement of the above technical scheme, the clamping assembly comprises a clamping ring, which is sleeved on the outer wall of the main shaft body.

[0013] A plurality of sets of deformation plates are arranged on the clamping ring, and the plurality of sets of deformation plates are arranged in an annular array on the clamping ring and extend into the second movable cavity to limit the movable sleeve.

[0014] As the improvement of the above technical scheme, a deformation cavity is arranged between the inner wall of the deformation plate and the outer wall of the main shaft body.

[0015] An extrusion block is arranged on the deformation plate, and the extrusion block is in contact with the inner wall of the second movable cavity, so that the deformation plate deforms towards the deformation cavity.

[0016] As the improvement of the above technical scheme, an extrusion ring groove is formed in the inner wall of the second movable cavity, the extrusion ring groove is matched with the extrusion block, and the extrusion block is arranged in the extrusion ring groove to limit the movable sleeve.

[0017] As the improvement of the above technical scheme, the extrusion block is provided with an extrusion inclined surface.

[0018] An active inclined surface is arranged on the port of the movable sleeve, the extrusion inclined surface is matched with the active inclined surface, and the extrusion inclined surface is in contact with the active inclined surface, so that the deformation plate deforms towards the deformation cavity.

[0019] Compared with the prior art, the utility model has the advantages of:

[0020] By uniformly arranging a plurality of sets of spline grooves in the movable sleeve and positioning the movable sleeve on the main shaft body, the main shaft body is driven to rotate when the main shaft body rotates, and then power is transmitted through the rotation of the plurality of sets of spline grooves, thereby improving the transmission efficiency; meanwhile, the movable sleeve is used in cooperation with the clamping assembly to ensure accurate positioning of the movable sleeve on the main shaft body, thereby enhancing the stability and reliability of the entire transmission structure; moreover, the movable sleeve is first sleeved on the outer wall of the connecting rod and then contacts and is positioned by the clamping assembly, thereby simplifying the assembly process, reducing the assembly difficulty and cost, improving the assembly efficiency, facilitating installation of different spline grooves on the main shaft body, and greatly improving the overall practicability on the basis of facilitating replacement. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is a connection schematic view of the motor main shaft and the movable sleeve of the utility model;

[0023] Figure 3 It is a structural schematic view of the movable sleeve of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the motor spindle of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A;

[0026] Figure 6 This is a front view of the motor spindle of this utility model;

[0027] Figure 7 This utility model Figure 6 Sectional view of BB;

[0028] Figure 8 This utility model Figure 7 A magnified structural diagram at point C.

[0029] In the figure: 10, piston motor; 20, spindle body; 21, connecting rod; 22, limiting hole; 30, movable sleeve; 31, spline groove; 32, first movable cavity; 33, second movable cavity; 34, limiting rod; 35, movable inclined surface; 36, extrusion ring groove; 40, snap-fit ​​assembly; 41, deformation plate; 42, snap-fit ​​ring; 43, extrusion block; 44, extrusion inclined surface; 50, deformation cavity. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example:

[0032] like Figures 1-8 As shown, this embodiment proposes a motor spindle spline transmission structure, including a spindle body 20, which is mounted on a piston motor 10.

[0033] A connecting rod 21 is provided on the spindle body 20, and a movable sleeve 30 is provided on the connecting rod 21. Multiple sets of spline grooves 31 are evenly provided on the movable sleeve 30. A snap-fit ​​assembly 40 is provided on the spindle body 20. The movable sleeve 30 is fitted on the connecting rod 21 and cooperates with the snap-fit ​​assembly 40, so that the movable sleeve 30 is positioned on the spindle body 20.

[0034] In use of the main shaft body 20, the movable sleeve 30 is first sleeved on the outer wall of the connecting rod 21, and the clamping assembly 40 is in contact with the movable sleeve 30. Through cooperation of the clamping assembly 40 and the movable sleeve 30, the movable sleeve 30 is positioned on the main shaft body 20, so that the spline groove 31 is positioned on the main shaft body 20. When the main shaft body 20 rotates, the movable sleeve 30 rotates, so that the multiple sets of spline grooves 31 rotate to transmit power.

[0035] By uniformly providing the movable sleeve 30 with multiple sets of spline grooves 31 and positioning the movable sleeve 30 on the main shaft body 20, the main shaft body 20 rotates to drive the movable sleeve 30 to rotate, and the multiple sets of spline grooves 31 rotate to transmit power, thereby improving the transmission efficiency. Meanwhile, the movable sleeve 30 is used in cooperation with the clamping assembly 40 to ensure accurate positioning of the movable sleeve 30 on the main shaft body 20, thereby enhancing the stability and reliability of the entire transmission structure. Moreover, the movable sleeve 30 is first sleeved on the outer wall of the connecting rod 21, and then contacts and is positioned with the clamping assembly 40, which simplifies the assembly process, reduces the assembly difficulty and cost, improves the assembly efficiency, and facilitates installation of different spline grooves 31 on the main shaft body 20, thereby greatly improving the overall practicability on the basis of facilitating replacement.

[0036] Specifically, the movable sleeve 30 is provided with a first movable cavity 32 and a second movable cavity 33.

[0037] The connecting rod 21 is adapted to the first movable cavity 32, and the connecting rod 21 is arranged in the first movable cavity 32. The clamping assembly 40 is adapted to the second movable cavity 33, and the clamping assembly 40 is arranged in the second movable cavity 33.

[0038] Specifically, the first movable cavity 32 is provided with a limiting rod 34.

[0039] The connecting rod 21 is provided with a limiting hole 22, and the limiting hole 22 is adapted to the limiting rod 34. The connecting rod 21 is arranged in the first movable cavity 32, so that the limiting rod 34 extends into the limiting hole 22.

[0040] Specifically, the connecting rod 21 and the first movable cavity 32 are both polygonal in cross section, and the limiting rod 34 and the limiting hole 22 are both polygonal in cross section.

[0041] In installation of the movable sleeve 30, the limiting rod 34 is aligned with the limiting hole 22, so that the connecting rod 21 is aligned with the first movable cavity 32. Then the movable sleeve 30 is pushed to move towards the connecting rod 21 until the limiting rod 34 is completely arranged in the limiting hole 22 and the connecting rod 21 is completely arranged in the first movable cavity 32.

[0042] Of course, since the connecting rod 21, the first movable cavity 32, the limiting rod 34 and the limiting hole 22 are all polygonal in cross section, when the main shaft body 20 rotates, the movable sleeve 30 can be conveniently driven to rotate.

[0043] Specifically, the clamping assembly 40 comprises a clamping ring 42, which is sleeved on the outer wall of the main shaft body 20.

[0044] A plurality of sets of deformation plates 41 are arranged on the clamping ring 42, and the plurality of sets of deformation plates 41 are arranged in an annular array on the clamping ring 42, and the plurality of sets of deformation plates 41 extend into the second movable cavity 33 to limit the movable sleeve 30.

[0045] Specifically, a deformation cavity 50 is arranged between the inner wall of the deformation plate 41 and the outer wall of the main shaft body 20.

[0046] An extrusion block 43 is arranged on the deformation plate 41, and the extrusion block 43 is in contact with the inner wall of the second movable cavity 33, so that the deformation plate 41 deforms towards the deformation cavity 50.

[0047] Specifically, an extrusion ring groove 36 is formed in the inner wall of the second movable cavity 33, the extrusion ring groove 36 is matched with the extrusion block 43, and the extrusion block 43 is arranged in the extrusion ring groove 36 to limit the movable sleeve 30.

[0048] In this embodiment, when the movable sleeve 30 is displaced towards the connecting rod 21, the port of the movable sleeve 30 extrudes the extrusion block 43, so that the deformation plate 41 deforms towards the deformation cavity 50, so that the extrusion block 43 is in contact with the inner wall of the second movable cavity 33, and when the limiting rod 34 is completely arranged in the limiting hole 22, the extrusion block 43 is arranged in the extrusion ring groove 36, thereby completing the installation and positioning process of the movable sleeve 30.

[0049] Specifically, the extrusion block 43 is provided with an extrusion inclined surface 44.

[0050] The port of the movable sleeve 30 is provided with a movable inclined surface 35, the extrusion inclined surface 44 is matched with the movable inclined surface 35, and the extrusion inclined surface 44 is in contact with the movable inclined surface 35, so that the deformation plate 41 deforms towards the deformation cavity 50.

[0051] In this embodiment, when the movable sleeve 30 is displaced, the movable inclined surface 35 is in contact with the extrusion inclined surface 44, so that the extrusion block 43 and the deformation plate 41 deform towards the main shaft body 20, so that the extrusion block 43 can quickly extend into the extrusion ring groove 36.

[0052] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor spindle spline drive arrangement, characterized by: Including the main shaft body (20), the main shaft body (20) is arranged on the plunger motor (10); The main shaft body (20) is provided with a connecting rod (21), the connecting rod (21) is provided with a movable sleeve (30), a plurality of groups of spline grooves (31) are uniformly formed in the movable sleeve (30), the main shaft body (20) is provided with a clamping assembly (40), the movable sleeve (30) is sleeved on the connecting rod (21) and cooperates with the clamping assembly (40), so that the movable sleeve (30) is positioned on the main shaft body (20).

2. A motor spindle spline drive according to claim 1, characterized in that: The movable sleeve (30) is provided with a first movable cavity (32) and a second movable cavity (33); The connecting rod (21) is matched with the first movable cavity (32), and the connecting rod (21) is arranged in the first movable cavity (32); the clamping assembly (40) is matched with the second movable cavity (33), and the clamping assembly (40) is arranged in the second movable cavity (33).

3. A motor spindle spline drive according to claim 2, characterized in that: The first movable cavity (32) is provided with a limiting rod (34); The connecting rod (21) is provided with a limiting hole (22), the limiting hole (22) is matched with the limiting rod (34), and the connecting rod (21) is arranged in the first movable cavity (32), so that the limiting rod (34) extends into the limiting hole (22).

4. A motor spindle spline drive according to claim 3, characterized in that: The connecting rod (21) and the first movable cavity (32) are both polygonal in cross section, and the limiting rod (34) and the limiting hole (22) are both polygonal in cross section.

5. A motor spindle spline drive according to claim 4, characterized in that: The clamping assembly (40) comprises a clamping ring (42), and the clamping ring (42) is sleeved on the outer wall of the main shaft body (20); A plurality of groups of deformation plates (41) are arranged on the clamping ring (42) in an annular array, and the plurality of groups of deformation plates (41) extend into the second movable cavity (33) to limit the movable sleeve (30).

6. A motor spindle spline drive according to claim 5, characterized in that: A deformation cavity (50) is arranged between the inner wall of the deformation plate (41) and the outer wall of the main shaft body (20); An extrusion block (43) is arranged on the deformation plate (41), the extrusion block (43) is in contact with the inner wall of the second movable cavity (33), and the deformation plate (41) is deformed towards the deformation cavity (50).

7. A motor spindle spline drive according to claim 6, characterized in that: An extrusion ring groove (36) is formed in the inner wall of the second movable cavity (33), the extrusion ring groove (36) is matched with the extrusion block (43), and the extrusion block (43) is arranged in the extrusion ring groove (36) to limit the movable sleeve (30).

8. A motor spindle spline drive according to claim 7, characterized in that: The extrusion block (43) is provided with an extrusion inclined surface (44); An active inclined surface (35) is formed in the port of the movable sleeve (30), the extrusion inclined surface (44) is matched with the active inclined surface (35), the extrusion inclined surface (44) is in contact with the active inclined surface (35), and the deformation plate (41) is deformed towards the deformation cavity (50).

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