An assembly structure of an electric motor and a hydraulic pump

Abstract

The utility model relates to motor and hydraulic pump technical field especially relates to a kind of motor and the assembly structure of hydraulic pump.The utility model includes pedestal, and the one end of pedestal top is fixed with motor by bolt, and the other end of pedestal top is fixed with hydraulic pump, and the one end of motor is provided with output shaft, and the side close to output shaft of hydraulic pump is provided with input shaft, and butt joint mechanism is assembled between input shaft and output shaft.The utility model is by the structural design of butt joint mechanism and adjusting mechanism, so that the device is convenient for the stable connection and convenient disassembly of output shaft and input shaft, and the setting of base is simultaneously matched, so that the integrity of motor and hydraulic pump is good, power transmission is more stable in the process of use, the flexibility of the device is improved, and by the structural design of limiting mechanism, the position of motor can be secondarily limited, which is beneficial to increase the stability of the device.

Description

Technical Field

[0001] This utility model relates to the field of electric motor and hydraulic pump technology, and in particular to an assembly structure for an electric motor and hydraulic pump. Background Technology

[0002] In practical applications, electric motors and hydraulic pumps are typically used in combination. The electric motor supplies power to the hydraulic pump, which in turn delivers hydraulic oil to meet external demands for high-pressure hydraulic oil. The component connecting the electric motor and the hydraulic pump is called a connector. This connector consists of two parts: the electric motor and the hydraulic pump. The electric motor has a housing and a power output shaft extending into the housing; the hydraulic pump has a housing and a power input shaft extending into the housing, which is connected to the electric motor's power output shaft.

[0003] For example, a connection device between an electric motor and a hydraulic pump, disclosed in publication number CN204003497U, belongs to the field of machinery. It includes an electric motor, a hydraulic pump, and a connection device. The electric motor includes a shaft and a housing, and the hydraulic pump includes a splined shaft and a pump body. The connection device comprises a bushing, an annular coupling, and a cover-shaped connector. One end of the cover-shaped connector is fixed to the electric motor housing, and the other end is fixed to the hydraulic pump body. The bushing and the annular coupling are sealed inside the cover-shaped connector.

[0004] In summary, the existing technology has the following technical problems: during use, the output shaft of the electric motor and the input shaft of the hydraulic pump lack an overall connection, which can lead to unstable connection and difficulty in disassembly and assembly of the output shaft and input shaft later on. Therefore, we propose an assembly structure for the electric motor and hydraulic pump. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly structure for an electric motor and a hydraulic pump to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An assembly structure for an electric motor and a hydraulic pump includes a base, with an electric motor fixed to one end of the top of the base by bolts, and a hydraulic pump fixed to the other end of the top of the base. An output shaft is provided at one end of the electric motor, and an input shaft is provided on the side of the hydraulic pump near the output shaft. A docking mechanism is assembled between the input shaft and the output shaft for connecting the output shaft and the input shaft.

[0008] Preferably, the docking mechanism includes a connecting shaft, a bushing, a gasket, and a guide shaft. The end of the input shaft away from the hydraulic pump is fixed to the connecting shaft, and the end of the output shaft near the input shaft is fixed to the guide shaft. A gasket is slidably connected to the outer side of the guide shaft, and a bushing is fixed to one side of the gasket. The inner side of the bushing is transitionally fitted with the connecting shaft.

[0009] Preferably, an adjustment mechanism is assembled between the motor and the gasket.

[0010] Preferably, the adjusting mechanism includes a first hollow cylinder, a second hollow cylinder, an outer sleeve, a locking sleeve, and locking plates. The first hollow cylinder is rotatably connected to one end of the motor and located outside the output shaft. The outer sleeve is fixed to the outside of the first hollow cylinder. The second hollow cylinder is slidably connected to the inside of the first hollow cylinder. A strip-shaped protrusion is fixed to the inside of the first hollow cylinder. The strip-shaped protrusion is slidably connected to the outside of the second hollow cylinder. The locking sleeve is threaded to the outside of the outer sleeve. Multiple locking plates are evenly distributed and integrally fixed to one end of the outer sleeve.

[0011] Preferably, one end of the inner side of the locking sleeve is provided with an oblique annular protrusion, and one end of the locking piece is provided with an inclined surface, the inclined surface being in close contact with the oblique annular protrusion.

[0012] Preferably, an auxiliary seat is fixed to one end of the bottom of the motor, the auxiliary seat is in close contact with the base, a positioning seat is fixed to the top of the base near the auxiliary seat, and a limit mechanism is assembled between the positioning seat and the auxiliary seat.

[0013] Preferably, the limiting mechanism includes a vertical column, a through hole, a movable sleeve, a threaded rod, and an L-shaped guide groove. The top of the positioning seat is fixed with a vertical column, the inner side of the positioning seat has a through hole, the inner side of the through hole is slidably connected to a movable sleeve, the inner side of the movable sleeve is threadedly connected to a threaded rod, the outer side of the movable sleeve has an L-shaped guide groove, and the L-shaped guide groove is slidably connected to the vertical column.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0016] 1. Through the structural design of the docking mechanism and the adjustment mechanism, this utility model makes it easy to stably connect and conveniently disassemble the output shaft and the input shaft. At the same time, with the base setting, the overall integrity of the motor and hydraulic pump is good, the power transmission is more stable during use, and the flexibility of this device is improved.

[0017] 2. Through the structural design of the limiting mechanism, this utility model enables the device to perform secondary limiting of the position of the motor, which helps to increase the stability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the output shaft and the guide shaft of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the first hollow cylinder, the second hollow cylinder, and the locking sleeve of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the outer sleeve and the locking plate of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the positioning seat of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Base; 2. Motor; 3. Hydraulic pump; 4. Output shaft; 5. Input shaft; 6. Connecting shaft; 7. Bushing; 8. Gasket; 9. Guide shaft; 10. First hollow cylinder; 11. Second hollow cylinder; 12. Outer sleeve; 13. Locking sleeve; 14. Locking plate; 15. Oblique annular protrusion; 16. Positioning seat; 17. Auxiliary seat; 18. Vertical column; 19. Through hole; 20. Movable sleeve; 21. Threaded rod; 22. L-shaped guide groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Example 1

[0028] Reference Figure 1-4An assembly structure for an electric motor and a hydraulic pump includes a base 1. An electric motor 2 is fixed to one end of the top of the base 1 by bolts, and a hydraulic pump 3 is fixed to the other end of the top of the base 1. An output shaft 4 is provided at one end of the electric motor 2, and an input shaft 5 is provided on the side of the hydraulic pump 3 near the output shaft 4. A docking mechanism is assembled between the input shaft 5 and the output shaft 4 for connecting the output shaft 4 and the input shaft 5.

[0029] The docking mechanism includes a connecting shaft 6, a bushing 7, a gasket 8, and a guide shaft 9. The end of the input shaft 5 away from the hydraulic pump 3 is fixed with the connecting shaft 6, and the end of the output shaft 4 near the input shaft 5 is fixed with the guide shaft 9. The outer side of the guide shaft 9 is slidably connected with the gasket 8, and the bushing 7 is fixed on one side of the gasket 8. The inner side of the bushing 7 is transitionally fitted with the connecting shaft 6. Anti-reverse protrusions are provided on both sides of the guide shaft 9, and the anti-reverse protrusions are slidably connected with the gasket 8.

[0030] An adjustment mechanism is installed between the motor 2 and the shim 8. By adjusting the position of the shim 8, the bushing 7 can be moved easily, enabling convenient assembly and disassembly with the connecting shaft 6. The driving adjustment mechanism includes a first hollow cylinder 10, a second hollow cylinder 11, an outer sleeve 12, a locking sleeve 13, and locking plates 14. The first hollow cylinder 10 is rotatably connected to one end of the motor 2, located outside the output shaft 4. The outer sleeve 12 is fixed to the outside of the first hollow cylinder 10. The second hollow cylinder 11 is slidably connected to the inside of the first hollow cylinder 10. A strip-shaped protrusion is fixed to the inside of the first hollow cylinder 10 and slidably connected to the outside of the second hollow cylinder 11. The locking sleeve 13 is threaded to the outside of the outer sleeve 12. Multiple locking plates 14 are evenly distributed and integrally fixed to one end of the outer sleeve 12. Vertical stripes are evenly distributed on the side of the locking plates 14 near the second hollow cylinder 11. Vertical stripes are also provided on the outside of the second hollow cylinder 11. The rotation of the second hollow cylinder 11 is limited by the engagement between the vertical stripes.

[0031] One end of the inner side of the locking sleeve 13 is provided with an oblique annular protrusion 15, and one end of the locking piece 14 is provided with an inclined surface. The inclined surface is in close contact with the oblique annular protrusion 15. When the locking sleeve 13 moves along the outer side of the outer sleeve 12, the oblique annular protrusion 15 contacts the locking piece 14. Under the guidance of the inclined surface, one end of the locking piece 14 deforms and bends towards the second hollow cylinder 11 until the locking piece 14 is tightly fitted with the second hollow cylinder 11, thereby fixing the second hollow cylinder 11.

[0032] Example 2

[0033] Further optimizations to Example 1, specifically, such as... Figure 1 and Figure 5As shown, an auxiliary seat 17 is fixed at one end of the bottom of the motor 2. The auxiliary seat 17 is in close contact with the base 1. A positioning seat 16 is fixed at the top of the base 1 and near the auxiliary seat 17. A limit mechanism is assembled between the positioning seat 16 and the auxiliary seat 17.

[0034] The limiting mechanism includes a vertical column 18, a through hole 19, a movable sleeve 20, a threaded rod 21, and an L-shaped guide groove 22. The top of the positioning seat 16 is fixed with the vertical column 18. A through hole 19 is provided on the inner side of the positioning seat 16. A movable sleeve 20 is slidably connected to the inner side of the through hole 19. A threaded rod 21 is threadedly connected to the inner side of the movable sleeve 20. An L-shaped guide groove 22 is provided on the outer side of the movable sleeve 20. The L-shaped guide groove 22 consists of a transverse groove and a longitudinal groove. The L-shaped guide groove 22 connects with the vertical column 18. The vertical column 18 is slidably connected, and both the transverse groove and the longitudinal groove are slidably connected to the vertical column 18. When it is necessary to limit the auxiliary seat 17, the movable sleeve 20 is pushed along the inside of the through hole 19 so that the transverse groove of the movable sleeve 20 is synchronously engaged with the vertical column 18. When the vertical column 18 contacts the longitudinal groove, the movable sleeve 20 is rotated so that the end of the vertical column 18 contacts the end of the longitudinal groove. Then the threaded rod 21 is rotated so that one end of the threaded rod 21 is in close contact with the auxiliary seat 17.

[0035] In summary:

[0036] This utility model addresses the technical problem that, in existing technologies, the output shaft of the electric motor and the input shaft of the hydraulic pump lack an integrated connection after connection, leading to unstable connection and difficulty in disassembly / reassembly later on. The present invention employs the technical solutions described in the above embodiments. Furthermore, the implementation process of the above technical solutions is as follows:

[0037] During use, after axially aligning the output shaft 4 and input shaft 5, pull the second hollow cylinder 11 to move it along the outer side of the strip-shaped protrusion. This causes the second hollow cylinder 11 to move the gasket 8 and bushing 7 towards the connecting shaft 6, thereby connecting the bushing 7 to the connecting shaft 6. Then, tighten the locking sleeve 13 so that the oblique annular protrusion 15 contacts the inclined surface on the locking piece 14, thereby making the locking piece 14 fit and contact the second hollow cylinder 11, thus securing the second hollow cylinder 11. This allows the input shaft 5 and output shaft 4 to be connected, facilitating power transmission.

[0038] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0039] 1. Through the structural design of the docking mechanism and the adjustment mechanism, this utility model makes it easy to stably connect and conveniently disassemble the output shaft 4 and the input shaft 5. At the same time, with the setting of the base 1, the motor 2 and the hydraulic pump 3 have good integrity, and the power transmission is more stable during use, which improves the flexibility of this device.

[0040] 2. Through the structural design of the limiting mechanism, this utility model enables the device to perform secondary limiting on the position of the motor 2, which helps to increase the stability of the device.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An assembly structure for an electric motor and a hydraulic pump, characterized in that, Includes a base (1), one end of the top of the base (1) is fixed with an electric motor (2) by bolts, the other end of the top of the base (1) is fixed with a hydraulic pump (3), one end of the electric motor (2) is provided with an output shaft (4), the side of the hydraulic pump (3) near the output shaft (4) is provided with an input shaft (5), and a docking mechanism is assembled between the input shaft (5) and the output shaft (4), the docking mechanism is used for the connection between the output shaft (4) and the input shaft (5).

2. The assembly structure of the electric motor and hydraulic pump according to claim 1, characterized in that, The docking mechanism includes a connecting shaft (6), a bushing (7), a gasket (8), and a guide shaft (9). The end of the input shaft (5) away from the hydraulic pump (3) is fixed with the connecting shaft (6), and the end of the output shaft (4) near the input shaft (5) is fixed with the guide shaft (9). The outer side of the guide shaft (9) is slidably connected with the gasket (8), and the bushing (7) is fixed on one side of the gasket (8). The inner side of the bushing (7) is transitionally fitted with the connecting shaft (6).

3. The assembly structure of the electric motor and hydraulic pump according to claim 2, characterized in that, An adjustment mechanism is assembled between the motor (2) and the gasket (8).

4. The assembly structure of the electric motor and hydraulic pump according to claim 3, characterized in that, The adjustment mechanism includes a first hollow cylinder (10), a second hollow cylinder (11), an outer sleeve (12), a locking sleeve (13), and locking plates (14). The first hollow cylinder (10) is rotatably connected to one end of the motor (2) and located outside the output shaft (4). The outer sleeve (12) is fixed to the outside of the first hollow cylinder (10). The second hollow cylinder (11) is slidably connected to the inside of the first hollow cylinder (10). A strip-shaped protrusion is fixed to the inside of the first hollow cylinder (10). The strip-shaped protrusion is slidably connected to the outside of the second hollow cylinder (11). The locking sleeve (13) is threaded to the outside of the outer sleeve (12). Multiple locking plates (14) are evenly distributed and integrally fixed to one end of the outer sleeve (12).

5. The assembly structure of the electric motor and hydraulic pump according to claim 4, characterized in that, One end of the inner side of the locking sleeve (13) is provided with an oblique annular protrusion (15), and one end of the locking piece (14) is provided with an inclined surface, which is in contact with the oblique annular protrusion (15).

6. The assembly structure of the electric motor and hydraulic pump according to claim 1, characterized in that, An auxiliary seat (17) is fixed at one end of the bottom of the motor (2). The auxiliary seat (17) is in close contact with the base (1). A positioning seat (16) is fixed at the top of the base (1) and near the auxiliary seat (17). A limit mechanism is assembled between the positioning seat (16) and the auxiliary seat (17).

7. The assembly structure of the electric motor and hydraulic pump according to claim 6, characterized in that, The limiting mechanism includes a vertical column (18), a through hole (19), a movable sleeve (20), a threaded rod (21), and an L-shaped guide groove (22). The top of the positioning seat (16) is fixed with the vertical column (18). The inner side of the positioning seat (16) is provided with a through hole (19). The inner side of the through hole (19) is slidably connected with the movable sleeve (20). The inner side of the movable sleeve (20) is threadedly connected with the threaded rod (21). The outer side of the movable sleeve (20) is provided with an L-shaped guide groove (22). The L-shaped guide groove (22) is slidably connected with the vertical column (18).

Images