Plunger motor spindle with spline transmission structure

Abstract

The utility model discloses a plunger motor main shaft with a spline transmission structure, which comprises a main shaft body, a connecting sleeve is sleeved on the main shaft body, and a plurality of groups of spline grooves are uniformly arranged on the outer wall of the connecting sleeve; two sets of connecting grooves are formed in the outer wall of the main shaft body, two sets of connecting blocks are fixedly arranged on the inner wall of the connecting sleeve, the two sets of connecting blocks are matched with the two sets of connecting grooves in position, locking assemblies are further arranged in the connecting grooves, and the locking assemblies are matched with the connecting grooves, so that the connecting blocks are always arranged in the connecting grooves; the main shaft has the advantages that the connecting sleeve is arranged on the main shaft body, the spline groove is formed in the outer wall of the connecting sleeve, integration of a spline transmission structure is achieved, the transmission efficiency and operation stability of the main shaft body of the plunger motor are improved, the corresponding spline groove can be replaced according to the actual situation, and the service life of the main shaft is prolonged. And the adaptability of the main shaft body is improved.

Description

Technical Field

[0001] The utility model relates to a plunger motor main shaft with a spline transmission structure. Background Art

[0002] A plunger motor is a device that converts hydraulic energy into mechanical energy and is widely used in various industrial and mobile applications, such as construction machinery, oilfield equipment, ships, and aerospace. The core components of a plunger motor include one or more plungers, which reciprocate within the motor under the pressure of hydraulic oil. This mechanical conversion converts the hydraulic energy provided by the hydraulic pump into mechanical energy, thereby driving the load's rotation.

[0003] In traditional plunger motor designs, a spline groove is generally provided on the main shaft for power transmission. However, the existing spline groove is directly provided on the main shaft and needs to be replaced when damaged. In view of this, the present invention proposes a plunger motor main shaft with a spline transmission structure to solve the above problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a plunger motor spindle with a spline transmission structure to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A plunger motor spindle with a spline transmission structure is provided on the plunger motor and comprises a spindle body, a connecting sleeve is sleeved on the spindle body, and a plurality of spline grooves are evenly formed on the outer wall of the connecting sleeve;

[0007] Two groups of connecting grooves are provided on the outer wall of the main shaft body, and two groups of connecting blocks are fixedly provided on the inner wall of the connecting sleeve. The two groups of connecting blocks are respectively matched with the positions of the two groups of connecting grooves. A locking assembly is also provided in the connecting groove, and the locking assembly cooperates with the connecting groove so that the connecting block is always placed in the connecting groove.

[0008] As an improvement of the above technical solution, two groups of rotation grooves are further provided on the outer wall of the main shaft body, the two groups of rotation grooves are matched with the positions of the two groups of connection grooves respectively, and the rotation grooves are connected to the connection grooves.

[0009] As an improvement of the above technical solution, the rotating groove is provided with two sets of rotating side walls, and the main shaft body rotates so that the rotating side walls come into contact with the connecting block, driving the connecting sleeve to rotate.

[0010] As an improvement of the above technical solution, the locking assembly includes a locking block, which is adapted to the connecting groove and is slidably arranged in the connecting groove;

[0011] The locking block is placed in the connecting groove to lock the connecting block in the rotating groove.

[0012] As an improvement to the above technical solution, mounting grooves are provided on the inner walls on both sides of the connecting groove, and two sets of mounting plates are symmetrically provided on the locking block, and the two sets of mounting plates are slidably provided in the two sets of mounting grooves respectively;

[0013] Mounting bolts are provided between the mounting plate and the inner wall of the mounting groove.

[0014] As an improvement to the above technical solution, a locking hole is provided on the connecting sleeve, the locking hole matches the size of the locking block, and two groups of mounting holes are provided on the locking hole, the two groups of mounting holes match the size of the two groups of mounting plates;

[0015] The locking block enters into the connecting groove through the locking hole.

[0016] As an improvement to the above technical solution, the locking hole and the connecting block are arranged on the same plane.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] By arranging a connecting sleeve on the main shaft body and opening a spline groove on the outer wall of the connecting sleeve, the integration of the spline transmission structure is realized, thereby improving the transmission efficiency and operating stability of the main shaft body of the plunger motor. In addition, the corresponding spline groove can be replaced according to actual conditions, thereby improving the adaptability of the main shaft body.

[0019] By opening two sets of connecting grooves on the outer wall of the main shaft body and fixing two sets of connecting blocks on the inner wall of the connecting sleeve, the connecting blocks are matched with the connecting groove positions, and the use of locking components ensures that the connecting blocks are always fixed in the connecting grooves, thereby enhancing the reliability and durability of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the main shaft body of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the main shaft body of the utility model from another angle;

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 5 This is a schematic diagram of the internal structure of the connecting sleeve of the utility model;

[0025] Figure 6This is a schematic structural diagram of the locking assembly of the utility model;

[0026] Figure 7 This is the front view of the utility model;

[0027] Figure 8 For this utility model Figure 7 Cross-sectional view of the middle BB;

[0028] Figure 9 For this utility model Figure 8 Schematic diagram of the enlarged structure at point B in the middle.

[0029] In the figure: 10, plunger motor; 20, spindle body; 21, rotating groove; 22, rotating side wall; 23, mounting groove; 24, connecting groove; 30, connecting sleeve; 31, spline groove; 32, locking hole; 33, connecting block; 34, mounting hole; 40, locking assembly; 41, locking block; 42, mounting plate; 43, mounting bolt. DETAILED DESCRIPTION

[0030] 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.

[0031] Example:

[0032] like Figure 1-8 As shown, this embodiment proposes a plunger motor spindle with a spline transmission structure, which is arranged on a plunger motor 10 and includes a spindle body 20. A connecting sleeve 30 is sleeved on the spindle body 20, and a plurality of spline grooves 31 are evenly formed on the outer wall of the connecting sleeve 30.

[0033] Two groups of connecting grooves 24 are provided on the outer wall of the main shaft body 20, and two groups of connecting blocks 33 are fixedly provided on the inner wall of the connecting sleeve 30. The two groups of connecting blocks 33 are respectively matched with the positions of the two groups of connecting grooves 24. A locking assembly 40 is also provided in the connecting groove 24. The locking assembly 40 cooperates with the connecting groove 24 so that the connecting block 33 is always placed in the connecting groove 24.

[0034] In this embodiment, when the spline groove 31 needs to be opened on the main shaft body 20, the connecting block 33 on the connecting sleeve 30 is aligned with the connecting groove 24, and the connecting sleeve 30 is pushed to move so that the connecting block 33 is placed in the connecting groove 24. Then, the locking assembly 40 is placed in the connecting groove 24. The locking assembly 40 locks the connecting block 33 so that the connecting block 33 is always placed in the connecting groove 24, thereby ensuring that the spline groove 31 on the connecting sleeve 30 is always placed on the main shaft body 20.

[0035] By providing a connecting sleeve 30 on the main shaft body 20 and forming a spline groove 31 on the outer wall of the connecting sleeve 30, the integration of the spline transmission structure is achieved, thereby improving the transmission efficiency and operating stability of the main shaft body 20 of the plunger motor 10. In addition, the corresponding spline groove 31 can be replaced according to actual conditions, thereby improving the adaptability of the main shaft body 20.

[0036] By opening two sets of connecting grooves 24 on the outer wall of the main shaft body 20 and fixing two sets of connecting blocks 33 on the inner wall of the connecting sleeve 30, the positions of the connecting blocks 33 and the connecting grooves 24 are matched, and the use of the locking assembly 40 is combined to ensure that the connecting blocks 33 are always fixed in the connecting grooves 24, thereby enhancing the reliability and durability of the entire structure.

[0037] Specifically, two groups of rotation grooves 21 are further formed on the outer wall of the main shaft body 20 . The two groups of rotation grooves 21 are matched with the two groups of connection grooves 24 respectively, and the rotation grooves 21 are communicated with the connection grooves 24 .

[0038] Specifically, the rotating groove 21 is provided with two sets of rotating side walls 22 . The main shaft body 20 rotates so that the rotating side walls 22 come into contact with the connecting block 33 , thereby driving the connecting sleeve 30 to rotate.

[0039] In this embodiment, the design of the rotating side wall 22 enables the main shaft body 20 to effectively contact the connecting block 33 when rotating, thereby driving the connecting sleeve 30 to rotate. This design optimizes the power transmission path and improves the transmission efficiency. Moreover, this design can be used as a buffer mechanism to reduce the mechanical stress caused by rapid rotation, so as to increase the service life of the plunger motor 10. Of course, the length of the rotating groove 21 can be set according to actual conditions.

[0040] Specifically, the locking assembly 40 includes a locking block 41, which is adapted to the connecting groove 24 and is slidably disposed in the connecting groove 24;

[0041] The locking block 41 is placed in the connecting groove 24 to lock the connecting block 33 in the rotating groove 21 .

[0042] Specifically, mounting grooves 23 are provided on the inner walls of both sides of the connecting groove 24, and two groups of mounting plates 42 are symmetrically provided on the locking block 41. The two groups of mounting plates 42 are slidably provided in the two groups of mounting grooves 23 respectively.

[0043] Mounting bolts 43 are provided between the mounting plate 42 and the inner wall of the mounting groove 23 .

[0044] In this embodiment, when the connecting block 33 slides into the rotating groove 21 through the connecting groove 24, the locking block 41 is placed in the connecting groove 24, the mounting plate 42 is placed in the mounting groove 23, and the locking block 41 is pushed to move in the connecting groove 24 until the mounting plate 42 moves to the bottom of the mounting groove 23. Then, the mounting plate 42 is connected to the bottom of the mounting groove 23 by the mounting bolt 43, so that the locking block 41 is stably placed in the connecting groove 24, so that the locking block 41 is stably placed in the connecting groove 24 to lock the connecting block 33.

[0045] Of course, when the mounting plate 42 is placed at the bottom of the mounting groove 23, the locking block 41 is displaced to the intersection of the rotating groove 21 and the connecting groove 24, filling the original connecting groove 24 position in the rotating groove 21, so that the inner wall of the rotating groove 21 is on a relatively smooth surface, thereby preventing the connecting block 33 from entering the connecting groove 24 when the spindle body 20 rotates forward and reverse, thereby affecting the normal transmission process.

[0046] Specifically, the connecting sleeve 30 is provided with a locking hole 32 , the locking hole 32 matches the size of the locking block 41 , and the locking hole 32 is provided with two groups of mounting holes 34 , the two groups of mounting holes 34 match the size of the two groups of mounting plates 42 ;

[0047] The locking block 41 enters into the connecting groove 24 through the locking hole 32 .

[0048] In this embodiment, when the locking block 41 is installed, the locking block 41 can be inserted into the connecting groove 24 through the locking hole 32 .

[0049] Specifically, the locking hole 32 and the connecting block 33 are arranged on the same plane.

[0050] In this embodiment, since the locking hole 32 and the connecting block 33 are on the same plane, when the locking block 41 needs to be disassembled, the connecting sleeve 30 is rotated to align the locking hole 32 with the connecting groove 24, so that the connecting block 33 rotates in the rotating groove 21 and aligns with the connecting groove 24. When the locking block 41 is removed, the connecting sleeve 30 is directly pulled to make the connecting block 33 enter the connecting groove 24, so that the connecting sleeve 30 can be quickly disassembled.

[0051] 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 plunger motor spindle with a spline transmission structure, arranged on a plunger motor (10), characterized in that: It comprises a main shaft body (20), a connecting sleeve (30) is sleeved on the main shaft body (20), and a plurality of groups of spline grooves (31) are evenly formed on the outer wall of the connecting sleeve (30); Two groups of connecting grooves (24) are formed on the outer wall of the main shaft body (20), and two groups of connecting blocks (33) are fixedly formed on the inner wall of the connecting sleeve (30). The two groups of connecting blocks (33) are respectively matched with the positions of the two groups of connecting grooves (24). A locking assembly (40) is also provided in the connecting groove (24). The locking assembly (40) cooperates with the connecting groove (24) so ​​that the connecting block (33) is always placed in the connecting groove (24).

2. The plunger motor spindle with a spline transmission structure according to claim 1, characterized in that: Two groups of rotation grooves (21) are further provided on the outer wall of the main shaft body (20), and the two groups of rotation grooves (21) are respectively matched with the positions of the two groups of connection grooves (24), and the rotation grooves (21) are communicated with the connection grooves (24).

3. The plunger motor spindle with a spline transmission structure according to claim 2, characterized in that: The rotating groove (21) is provided with two groups of rotating side walls (22), and the main shaft body (20) rotates so that the rotating side walls (22) contact the connecting block (33), thereby driving the connecting sleeve (30) to rotate.

4. The plunger motor spindle with a spline transmission structure according to claim 3, characterized in that: The locking assembly (40) includes a locking block (41), the locking block (41) is adapted to the connecting groove (24), and the locking block (41) is slidably disposed in the connecting groove (24); The locking block (41) is placed in the connecting groove (24) to lock the connecting block (33) in the rotating groove (21).

5. The plunger motor spindle with a spline transmission structure according to claim 4, characterized in that: Mounting grooves (23) are provided on the inner walls of both sides of the connecting groove (24), and two groups of mounting plates (42) are symmetrically provided on the locking block (41), and the two groups of mounting plates (42) are slidably provided in the two groups of mounting grooves (23) respectively; Mounting bolts (43) are provided between the mounting plate (42) and the inner wall of the mounting groove (23).

6. The plunger motor spindle with a spline transmission structure according to claim 5, characterized in that: The connecting sleeve (30) is provided with a locking hole (32), the locking hole (32) matches the size of the locking block (41), and the locking hole (32) is provided with two groups of mounting holes (34), the two groups of mounting holes (34) match the size of the two groups of mounting plates (42); The locking block (41) enters the connecting groove (24) through the locking hole (32).

7. The plunger motor spindle with a spline transmission structure according to claim 6, characterized in that: The locking hole (32) and the connecting block (33) are arranged on the same plane.

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