Hydraulic oil pump convenient for shaft end connection

Abstract

The utility model discloses a hydraulic oil pump convenient for shaft end connection, which relates to the technical field of hydraulic oil pumps and comprises an oil pump body, a flange structure is sleeved outside a rotating shaft of the oil pump body, and a transmission structure is mounted at the tail of the flange structure; the flange structure comprises an oil pump flange and two positioning pins. The oil pump flange is connected with a rotating shaft of the oil pump body through a key, and two positioning holes are formed in the side face of the rotating shaft of the oil pump body and the side face of the oil pump flange. The driving end of the motor is connected with the rotating shaft of the hydraulic oil pump through the steel cable, rigid torque transmission of the coupler is converted into pulling transmission of the steel cable, even if the axis of the driving end of the motor does not coincide with the axis of the rotating shaft of the hydraulic oil pump, transmission can still be effectively carried out, and meanwhile vibration can be avoided. And the stability of the system is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil pumps, in particular to a hydraulic oil pump which is convenient for shaft end connection. Background Art

[0002] The hydraulic oil pump is the power source in the hydraulic system. The hydraulic oil pump we choose must meet the hydraulic system's requirements for pressure and flow. At the same time, we must also fully consider reliability, life, maintainability, etc. so that the selected hydraulic oil pump can operate for a long time in the hydraulic system; there are many types of hydraulic oil pumps and their characteristics are also very different; hydraulic oil pumps include vane pumps, gear pumps, plunger pumps and screw pumps. Vane pumps, gear pumps and plunger pumps are generally used in the market.

[0003] The hydraulic oil pump needs to be driven by an external power source, usually an electric motor. The common method is to connect the driving end of the motor and the rotating shaft of the hydraulic oil pump through a coupling. Due to assembly errors, the axis of the motor driving end and the axis of the hydraulic oil pump rotating shaft cannot be completely overlapped. Therefore, the two are directly connected through a coupling, which will cause eccentricity, resulting in vibration of the mechanical structure during operation, leading to instability of the overall system. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a hydraulic oil pump that is easy to connect the shaft end. Its advantages are that the utility model connects the driving end of the motor and the rotating shaft of the hydraulic oil pump through a steel cable, converts the rigid torque transmission of the coupling into the pulling transmission of the steel cable, and even if the axis of the driving end of the motor and the axis of the rotating shaft of the hydraulic oil pump do not coincide, the transmission can still be effectively performed, and the occurrence of vibration can also be avoided, effectively ensuring the stability of the system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic oil pump that is easy to connect to the shaft end comprises: an oil pump body, a flange structure is sleeved on the outside of the rotating shaft of the oil pump body, and a transmission structure is installed at the tail of the flange structure; the flange structure comprises: an oil pump flange and two locating pins; the oil pump flange and the rotating shaft of the oil pump body are connected by a key, and two locating holes are provided on the side of the rotating shaft of the oil pump body, and two locating holes are provided on the side of the oil pump flange, and the two locating pins are inserted into the locating holes of the rotating shaft of the oil pump body and the locating holes of the oil pump flange at the same time, and eight transmission holes are provided on the front of the oil pump flange.

[0007] The utility model is further configured that the transmission structure includes: eight transmission steel cables and a transmission flange; the eight transmission steel cables are respectively inserted into eight transmission holes of the oil pump flange, and the transmission flange is sleeved on the outside of the eight transmission steel cables.

[0008] The utility model is further configured that stoppers are respectively installed at both ends of the eight transmission cables.

[0009] The utility model is further configured that anti-friction blocks are installed inside the eight transmission steel cables.

[0010] The utility model is further configured that the transmission steel cable and the transmission flange are directly provided with transmission pads.

[0011] The utility model is further configured that transmission pads are respectively arranged in the eight transmission holes of the oil pump flange.

[0012] The beneficial effects of the utility model are as follows: the utility model connects the driving end of the motor and the rotating shaft of the hydraulic oil pump through a steel cable, and converts the rigid torque transmission of the coupling into the pulling transmission of the steel cable. Even if the axis center of the motor driving end and the axis center of the rotating shaft of the hydraulic oil pump do not coincide, transmission can still be effectively performed, and vibration can be avoided, thereby effectively ensuring the stability of the system.

[0013] The hydraulic oil pump which is easy to connect to the shaft end is provided with a transmission structure. The transmission structure can transmit the torque of the motor to the flange structure, so as to drive the oil pump body to work. The transmission structure can transmit when the driving end of the motor and the rotating shaft of the oil pump body are not on the same axis. On the premise of effectively transmitting the torque, it can also play a shock-absorbing effect, thereby enhancing the stability of the hydraulic system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first overall structural schematic diagram of a hydraulic oil pump that is convenient for shaft end connection proposed by the utility model;

[0015] Figure 2 A second overall structural schematic diagram of a hydraulic oil pump that is convenient for shaft end connection proposed by the utility model;

[0016] Figure 3 This is a partial structural schematic diagram of a hydraulic oil pump that is convenient for shaft end connection proposed by the utility model;

[0017] Figure 4 The utility model is a partial structural exploded schematic diagram of a hydraulic oil pump which is convenient for shaft end connection.

[0018] In the figure: 1. Oil pump body; 2. Oil pump flange; 3. Locating pin; 4. Transmission cable; 5. Transmission flange; 6. Stopper; 7. Anti-friction block; 8. Transmission pad. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0022] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0023] Reference Figure 1-4 , a hydraulic oil pump that is convenient for shaft end connection, comprising: an oil pump body 1, a flange structure is sleeved on the outside of the rotating shaft of the oil pump body 1, and a transmission structure is installed at the tail of the flange structure; the flange structure comprises: an oil pump flange 2 and two locating pins 3; the oil pump flange 2 and the rotating shaft of the oil pump body 1 are connected by a key, and two locating holes are provided on the side of the rotating shaft of the oil pump body 1, and two locating holes are provided on the side of the oil pump flange 2, and the two locating pins 3 are inserted into the locating holes of the rotating shaft of the oil pump body 1 and the locating holes of the oil pump flange 2 at the same time, and eight transmission holes are provided on the front of the oil pump flange 2, and transmission pads 8 are respectively provided in the eight transmission holes of the oil pump flange 2, and the flange structure can install the rotating shaft of the oil pump body 1 and facilitate the installation of the transmission structure.

[0024] Specifically, the transmission structure includes: eight transmission steel cables 4 and a transmission flange 5; the eight transmission steel cables 4 are respectively inserted into the eight transmission holes of the oil pump flange 2, the transmission flange 5 is mounted on the outside of the eight transmission steel cables 4, the two ends of the eight transmission steel cables 4 are respectively installed with block 6, the interior of the eight transmission steel cables 4 is installed with anti-friction block 7, the transmission steel cables 4 and the transmission flange 5 are directly provided with transmission pads 8, the transmission structure can transmit the torque of the motor to the flange structure, so as to drive the oil pump body 1 to work, the transmission structure can transmit when the driving end of the motor and the rotating shaft of the oil pump body 1 are not on the same axis, and on the premise of effectively transmitting the torque, it can also play a shock-absorbing effect, thereby enhancing the stability of the hydraulic system operation.

[0025] Working principle: When using the utility model, the operator first installs the driving end of the motor inside the transmission flange 5 through a key. When the driving end of the motor rotates, it will drive the transmission flange 5 to rotate, and the eight transmission cables 4 installed inside the transmission flange 5 will shift at the same time. Under the pulling of the eight transmission cables 4, the oil pump flange 2 starts to rotate, and the key connection can drive the rotating shaft of the oil pump body 1 to rotate, so that the hydraulic system starts working. The anti-friction block 7 can prevent the eight transmission cables 4 from contacting each other and causing damage, and the transmission pad 8 can prevent the eight transmission cables 4 from friction damage to the oil pump flange 2 and the transmission flange 5. At the same time, the block 6 can ensure that the pulling force of the eight transmission cables 4 is effectively transmitted.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic oil pump that is convenient for shaft end connection, comprising: The oil pump body (1) is characterized in that a flange structure is sleeved on the outside of the rotating shaft of the oil pump body (1), and a transmission structure is installed at the rear of the flange structure; The flange structure comprises: an oil pump flange (2) and two positioning pins (3); The oil pump flange (2) and the rotating shaft of the oil pump body (1) are connected by a key, and two positioning holes are provided on the side of the rotating shaft of the oil pump body (1), and two positioning holes are provided on the side of the oil pump flange (2). The two positioning pins (3) are simultaneously inserted into the positioning holes of the rotating shaft of the oil pump body (1) and the positioning holes of the oil pump flange (2), and eight transmission holes are provided on the front of the oil pump flange (2).

2. A hydraulic oil pump that facilitates shaft end connection according to claim 1, characterized in that: The transmission structure comprises: eight transmission steel cables (4) and a transmission flange (5); The eight transmission steel cables (4) are respectively inserted into the eight transmission holes of the oil pump flange (2), and the transmission flange (5) is sleeved on the outside of the eight transmission steel cables (4).

3. A hydraulic oil pump that facilitates shaft end connection according to claim 2, characterized in that: Stoppers (6) are respectively installed at both ends of the eight transmission cables (4).

4. A hydraulic oil pump for easy shaft end connection according to claim 2, characterized in that: Anti-friction blocks (7) are installed inside the eight transmission steel cables (4).

5. A hydraulic oil pump that facilitates shaft end connection according to claim 2, characterized in that: The transmission steel cable (4) and the transmission flange (5) are directly provided with a transmission pad (8).

6. A hydraulic oil pump that facilitates shaft end connection according to claim 1, characterized in that: Transmission pads (8) are respectively arranged in the eight transmission holes of the oil pump flange (2).

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