Oil pump shell and novel aviation oil pump

Abstract

The utility model relates to the technical field of oil pumps, and provides an oil pump shell and a novel aviation oil pump, the oil pump shell is provided with a threading space and an installation space, the installation space is eccentrically arranged relative to the axis of the oil pump shell, the threading space is communicated with the installation space and located on one side of the installation space, and the threading space is used for containing a power line. The motor is detachably arranged in the installation space, and the power line is connected with the motor. According to the technical scheme, the problems that in the prior art, wiring harnesses are exposed, an aviation plug is externally arranged, the aviation plug is connected with an aviation power line, an aviation oil pump power line and a plug are externally arranged, the power line and the plug are not fixed, and the power line is prone to aging after being used for a long time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pumps, and in particular to an oil pump housing and a novel aviation oil pump. Background Art

[0002] During the use of aircraft engines, they rely on oil pumps to provide working fluid (aviation fuel). The service life and reliability of the oil pump directly affect the engine's endurance and subsequent maintenance costs. The existing miniature aviation oil pumps (integrated oil pumps) use motor housings to protect the motors, the wiring harness is exposed, the aviation plug is external and connected to the aviation power cord, the aviation oil pump power cord and plug are external, and there are no fixing measures for the power cord and plug. The power cord is prone to aging due to long-term use, and the plug solder is easily oxidized and falls off due to external force, which affects the service life. Utility Model Content

[0003] The utility model provides an oil pump housing and a novel aviation oil pump, which solve the problems in the related art of leakage of wiring harness, external aviation plug connected to aviation power line, external aviation oil pump power line and plug, no fixing measures for the power line and plug, and easy aging of the power line after long-term use.

[0004] The technical solution of the utility model is as follows: an oil pump housing, comprising:

[0005] The oil pump housing has a threading space and an installation space, the installation space is eccentrically arranged relative to the axis of the oil pump housing, the threading space is connected to the installation space and is located on one side of the installation space, and the threading space is used to accommodate a power cord.

[0006] Optionally, a partition is further included, which is arranged in the installation space to divide the threading space into a plurality of wire grooves, and the wire grooves are parallel to the axial direction of the oil pump housing.

[0007] Optionally, the wire groove is a dovetail groove, and the groove edge of the wire groove is an arc-shaped fillet.

[0008] A novel aviation oil pump, comprising the oil pump housing described in any one of the above, and further comprising:

[0009] a motor, wherein the motor is detachably arranged in the installation space,

[0010] A power line is connected to the motor.

[0011] Optionally, the oil pump housing has an end cover, the end cover has a perforation, and further comprises:

[0012] An adapter plate, the adapter plate is arranged on one side of the motor, the adapter plate has a first connector and a second connector, and the power line is connected to the first connector;

[0013] A plug is connected to the second connector and extends through the through hole to the outside of the oil pump housing.

[0014] Optionally, the first connector and the second connector are located on the same side of the adapter plate and on a side of the adapter plate away from the motor; the adapter plate has a wire passing opening, and the power cord passes through the wire passing opening to be connected to the first connector.

[0015] Optionally, the motor has an output end and further comprises:

[0016] An oil pump body, the oil pump body being arranged on the output end and being located in the installation space;

[0017] An oil pump cover is arranged on a side of the oil pump body away from the motor.

[0018] Optionally, it also includes:

[0019] A partition, which is arranged in the installation space and divides the threading space into a plurality of wire troughs;

[0020] A conductor rod, which is used to guide the power cord, is arranged in the threading space, is provided at both ends of the conductor trough, and is arranged parallel to the arrangement direction of the conductor trough; the conductor rod is located on a side of the conductor trough close to the installation space.

[0021] Optionally, the conductor rod has an annular wire trough, and a plurality of the annular wire troughs are arranged in sequence.

[0022] Optionally, the power cord has a first radial segment, an axial segment and a second radial segment, the first radial segment, the axial segment and the second radial segment are connected in sequence, the first radial segment bypasses the conductor rod on one side, and the second radial segment bypasses the conductor rod on the other side.

[0023] The working principle and beneficial effects of the utility model are:

[0024] 1. In the utility model, the oil pump housing realizes the reasonable layout of the motor and its power cord by setting an eccentric installation space and a connected threading space, avoiding the conflict between the wiring harness and the internal components of the oil pump in the traditional design, reducing the space occupation, and improving the compactness of the overall structure. The design of the threading space allows the power cord to be hidden inside the oil pump housing, effectively preventing the wiring harness from being affected by the external environment (such as oil, dust, mechanical collision, etc.) during operation, and improving the safety and reliability of the electrical system. The structural design of the eccentric installation space and the threading space makes the installation, inspection, maintenance and other work of the motor and its power cord more convenient, reducing maintenance costs and improving work efficiency.

[0025] 2. In the utility model, the motor is detachably arranged in the installation space, and the power cord is connected to it through the threading space, forming an integrated design of the motor, power cord and oil pump housing, simplifying the overall structure, reducing the use of external wiring harnesses, and improving the integration and aesthetics of the equipment. When the motor or power cord needs to be inspected, maintained or replaced, the motor can be removed from the installation space by removing the relevant fasteners, or the power cord can be conveniently replaced through the threading space, which greatly simplifies the maintenance work and improves the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0027] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0029] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of I in the figure;

[0030] Figure 4 This is a schematic diagram of the structure of the oil pump housing of the utility model (with a partition);

[0031] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure of I in the figure;

[0032] Figure 6 This is a schematic diagram of the oil pump housing structure of the utility model (without partition);

[0033] In the figure: 1, oil pump housing; 101, threading space; 102, installation space; 2, power cord; 201, first radial section; 202, axial section; 203, second radial section; 3, partition; 4, wire duct; 5, motor; 501, output end; 6, end cover; 601, perforation; 7, adapter plate; 701, first connector; 702, second connector; 703, wire port; 8, plug; 9, oil pump body; 10, oil pump cover; 11, wire rod; 1101, annular wire duct. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0036] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] Example 1

[0039] Reference Figure 4~Figure 6 , which is the first embodiment of the utility model, proposes an oil pump housing 1, including: an oil pump housing 1, the oil pump housing 1 has a threading space 101 and an installation space 102, the installation space 102 is eccentrically arranged relative to the axis of the oil pump housing 1, the threading space 101 is connected to the installation space 102, and is located on one side of the installation space 102, and the threading space 101 is used to accommodate the power cord 2.

[0040] In this embodiment, the threading space 101 is intended to accommodate the wiring harness to prevent the wiring harness from being directly exposed to the outside of the oil pump housing 1. The shape of the threading space 101 matches the specification of the wiring harness, and the installation space 102 is eccentrically arranged relative to the axis of the oil pump housing 1, reserving installation positions for core components such as the motor 5. The eccentric layout allows the motor 5 and the auxiliary electrical equipment to be installed on one side of the oil pump housing 1, freeing up space on the other side to set the threading space 101, so that the wiring harness of the motor 5 can be concealed in the housing, avoiding direct exposure of the wiring harness to the external environment, reducing the risk of mechanical damage and electromagnetic interference to the wiring harness, and also improving the overall aesthetics and integration of the oil pump. Due to the eccentric design, the motor 5 and the auxiliary electrical equipment are arranged in a centralized manner, reducing the material consumption of the housing in the corresponding area, and optimizing the stress distribution of the housing, allowing the use of thinner wall thickness or lighter materials while ensuring structural strength, thereby effectively reducing the weight of the oil pump housing 1. This is crucial for aviation applications that pursue lightweight, and helps to improve the fuel efficiency, range and load capacity of aircraft. The novel aviation oil pump housing 1 provided in this embodiment successfully solves the problem of concealed arrangement of the wiring harness of the motor 5 inside the aviation oil pump through the design of the threading space 101 and the layout of the eccentric installation space 102, significantly reduces the weight of the housing, improves the overall integration, safety and flight performance of the oil pump, and is suitable for high-end application scenarios such as various aircraft engines and aircraft hydraulic systems;

[0041] Furthermore, it also includes a partition 3, which is arranged in the installation space 102 to divide the threading space 101 into a plurality of wire grooves 4, and the wire grooves 4 are parallel to the axial direction of the oil pump housing 1; the wire grooves 4 are dovetail grooves, and the groove edges of the wire grooves 4 are arc-shaped fillets.

[0042] The partition 3 is arranged in the installation space 102 of the oil pump housing 1, and is integrally formed with the oil pump housing 1 or fixed by screws, welding, etc. The partition 3 fits tightly with the inner wall of the oil pump housing 1 to form a plurality of dovetail groove-shaped wire grooves 4 parallel to the axial direction of the oil pump housing 1. The dovetail groove-shaped wire groove 4 provides a dedicated, non-slip wiring fixing channel for the power cord 2. The arc-shaped rounded corner design reduces the friction between the cable and the groove wall, protects the cable insulation layer, and prolongs the service life. The design of the dovetail groove-shaped wire groove 4 can also effectively prevent foreign matter such as oil and dust from entering the power cord 2, thereby improving the safety of the electrical system.

[0043] Example 2

[0044] Reference Figure 1~Figure 3 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that: a novel aviation oil pump based on an oil pump housing 1 is proposed, and further comprises: a motor 5, the motor 5 is detachably arranged in the installation space 102, and a power line 2, the power line 2 is connected to the motor 5;

[0045] In this embodiment, the motor 5 is detachably disposed in the eccentric mounting space 102 of the oil pump housing 1 and fixed to the housing by bolts, buckles, etc. One end of the power cord 2 is connected to the motor 5, and the other end passes through the threading space 101 of the oil pump housing 1. If a partition 3 and a dovetail groove-shaped wire groove 4 are provided inside the oil pump housing 1, the power cord 2 is embedded in the dovetail groove according to a preset path, and is fixed by utilizing the anti-slip properties of the dovetail groove, thereby protecting the power cord 2 from mechanical damage and oil erosion.

[0046] Furthermore, the oil pump housing 1 has an end cover 6, the end cover 6 has a through hole 601, and further includes:

[0047] The adapter plate 7 is arranged on one side of the motor 5, and the adapter plate 7 has a first connector 701 and a second connector 702, and the power line 2 is connected to the first connector 701;

[0048] The plug 8 is connected to the second connector 702 and extends through the through hole 601 to the outside of the oil pump housing 1 .

[0049] In this embodiment, the adapter plate 7 is arranged on one side of the motor 5 and is fixed to the motor 5 by bolts, buckles and other connection methods. The adapter plate 7 is provided with a first connector 701 and a second connector 702, the first connector 701 is connected to the power cord 2, and the second connector 702 is connected to the plug 8. The design of the adapter plate 7 makes the connection between the power cord 2 and the plug 8 more compact and orderly, reduces the space occupied by the wiring harness inside the housing, and is convenient for maintenance. One end of the power cord 2 is connected to the first connector 701 on the adapter plate 7, and the connection method can be plug-in, welding, crimping, etc., to ensure a firm connection and good electrical performance. The plug 8 is connected to the second connector 702 on the adapter plate 7. The connected plug 8 extends to the outside of the oil pump housing 1 through the perforation 601 on the end cover 6, and docks with the socket of the external power system to achieve power access. Working process: During the assembly process, the adapter plate 7 is first installed on one side of the motor 5, and then the power cord 2 is connected to the first connector 701 on the adapter plate 7, and then the plug 8 is connected to the second connector 702 on the adapter plate 7. Install the end cover 6, lead the plug 8 through the perforation 601 on the end cover 6, and connect it to the external power supply system. During the operation of the oil pump, the power cord 2 transfers the electric energy from the external power supply system to the motor 5 safely and efficiently through the first connector 701, the second connector 702 and the plug 8, so as to drive the oil pump to work. When maintenance or replacement of the power cord 2 and the plug 8 is required, it is convenient to operate by simply opening the end cover 6. The new aviation oil pump provided in this embodiment realizes the convenient and safe connection between the power cord 2 and the external power supply system through the design of the end cover 6, the adapter plate 7, the first connector 701, the second connector 702 and the plug 8, thereby improving the maintainability of the oil pump system and further enhancing the convenience and reliability of the oil pump in the aviation industry.

[0050] Furthermore, the first connector 701 and the second connector 702 are located on the same side of the adapter plate 7 and on the side of the adapter plate 7 away from the motor 5; the adapter plate 7 has a wire opening 703, and the power cord 2 passes through the wire opening 703 to connect with the first connector 701.

[0051] In this embodiment, the first connector 701 and the second connector 702 are located on the same side of the adapter plate 7, and on the side of the adapter plate 7 away from the motor 5. This design makes the connection between the power cord 2 and the plug 8 more centralized, avoids the wiring harness being tangled between the adapter plate 7 and the motor 5, helps to reduce the internal space occupied by the oil pump housing 1, improves space utilization, and is convenient for observation and maintenance. The adapter plate 7 is provided with a wire opening 703. After the power cord 2 is led out from one side of the motor 5 through the threading space 101 of the oil pump housing 1, it passes through the wire opening 703 of the adapter plate 7 and is connected to the first connector 701. The design of the wire opening 703 makes the direction of the power cord 2 on the adapter plate 7 clear and orderly, avoids the bending and folding of the wiring harness on the adapter plate 7, reduces the risk of mechanical damage to the wiring harness, and improves the safety of the electrical system.

[0052] Furthermore, the motor 5 has an output end 501 , and also includes: an oil pump body 9 , which is arranged on the output end 501 and located in the installation space 102 ; and an oil pump cover 10 , which is arranged on a side of the oil pump body 9 away from the motor 5 .

[0053] In this embodiment, the oil pump body 9 is disposed on the output end 501 of the motor 5, and is connected to the shaft of the motor 5 by a coupling or a direct key connection, etc., to receive the power input of the motor 5. The oil pump body 9 includes key components such as a pump chamber, an impeller, a pump housing, an oil suction port, and an oil discharge port, which convert the rotational kinetic energy of the motor 5 into hydraulic energy, and provide the required hydraulic power for the aircraft hydraulic system.

[0054] Furthermore, it also includes: a partition 3, which is arranged in the installation space 102 to divide the threading space 101 into a plurality of wire troughs 4; a wire rod 11, which is used to guide the power cord 2, and is arranged in the threading space 101, and the wire rods 11 are arranged at both ends of the wire trough 4, and the wire rods 11 are arranged parallel to the arrangement direction of the wire trough 4; the wire rod 11 is located on the side of the wire trough 4 close to the installation space 102.

[0055] The conductor rod 11 has an annular wire groove 1101, and a plurality of the annular wire grooves 1101 are arranged in sequence.

[0056] The power cord 2 has a first radial section 201, an axial section 202 and a second radial section 203, which are connected in sequence. The first radial section 201 bypasses the conductor rod 11 on one side, and the second radial section 203 bypasses the conductor rod 11 on the other side.

[0057] In this embodiment, the partition 3 is arranged in the installation space 102 of the oil pump housing 1, and the threading space 101 is divided into a plurality of wire grooves 4, providing a dedicated wiring channel for the power cord 2, avoiding the disorderly interweaving of the wire harness inside the housing, which is conducive to reducing the internal space occupied by the oil pump housing 1, improving the space utilization rate, and facilitating observation and maintenance. The wire rod 11 is arranged in the threading space 101, located on the side of the wire groove 4 close to the installation space 102, and is used to guide the power cord 2. The wire rod 11 is provided with an annular wire groove 1101, and the annular wire groove 1101 is arranged in sequence. The power cord 2 can be arranged in an orderly manner along the annular wire groove 1101, avoiding the wire harness from sliding and loosening on the wire rod 11, and improving the safety of the electrical system. The power cord 2 has a first radial section 201, an axial section 202 and a second radial section 203, and the first radial section 201, the axial section 202 and the second radial section 203 are connected in sequence. The first radial section 201 bypasses the conductor rod 11 on one side, and the second radial section 203 bypasses the conductor rod 11 on the other side. The power cord 2 is fixed to the conductor rod 11 in this way, which prevents the wiring harness from shaking or loosening inside the housing and improves the stability of the electrical system.

[0058] Working process: During the assembly process, the partition 3 is first installed in the installation space 102 of the oil pump housing 1 to form the wire groove 4. Then, the wire rod 11 is installed in the threading space 101, and the power cord 2 is laid along the annular wire groove 1101 on the wire rod 11. The first radial section 201 bypasses the wire rod 11 on one side, and the second radial section 203 bypasses the wire rod 11 on the other side. The power cord 2 is fixed to the wire rod 11 in this way. During the operation of the oil pump, the power cord 2 is guided by the wire rod 11 and the annular wire groove 1101 to safely and efficiently transfer electrical energy from the external power supply system to the motor 5 to drive the oil pump to work. When maintenance or replacement of the power cord 2 is required, only the end cover 6 needs to be opened to conveniently observe the layout of the power cord 2, which is convenient for operation. The novel aviation oil pump provided in this embodiment realizes orderly and safe wiring of the power cord 2 inside the oil pump housing 1 through the special structural design of the partition 3, the wire trough 4, the wire rod 11, the annular wire trough 1101 and the power cord 2, thereby improving the integration and safety of the oil pump system and further enhancing the convenience and reliability of the oil pump in the aviation industry.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An oil pump housing, characterized in that: include: An oil pump housing (1), the oil pump housing (1) having a threading space (101) and an installation space (102), the installation space (102) being eccentrically arranged relative to the axis of the oil pump housing (1), the threading space (101) being connected to the installation space (102) and being located on one side of the installation space (102), the threading space (101) being used to accommodate a power cord (2).

2. The oil pump housing according to claim 1, characterized in that: It also includes a partition plate (3), which is arranged in the installation space (102) to divide the threading space (101) into a plurality of wire grooves (4), and the wire grooves (4) are parallel to the axial direction of the oil pump housing (1).

3. An oil pump housing according to claim 2, characterized in that: The wire groove (4) is a dovetail groove, and the groove edge of the wire groove (4) is an arc-shaped fillet.

4. A new type of aviation oil pump, characterized in that: The oil pump housing according to any one of claims 1 to 3 further comprises: a motor (5), the motor (5) being detachably arranged in the installation space (102); A power line (2), wherein the power line (2) is connected to the motor (5).

5. A novel aviation oil pump according to claim 4, characterized in that: The oil pump housing (1) has an end cover (6), the end cover (6) has a through hole (601), and further comprises: an adapter plate (7), the adapter plate (7) being arranged on one side of the motor (5), the adapter plate (7) having a first connector (701) and a second connector (702), the power line (2) being connected to the first connector (701); A plug (8), the plug (8) being connected to the second connector (702) and extending through the through hole (601) to the outside of the oil pump housing (1).

6. A novel aviation oil pump according to claim 5, characterized in that: The first connector (701) and the second connector (702) are located on the same side of the adapter plate (7), and are located on a side of the adapter plate (7) away from the motor (5); the adapter plate (7) has a wire passing opening (703), and the power line (2) passes through the wire passing opening (703) to be connected to the first connector (701).

7. A novel aviation oil pump according to claim 4, characterized in that: The motor (5) has an output end (501) and further comprises: An oil pump body (9), the oil pump body (9) being arranged on the output end (501) and located in the installation space (102); An oil pump cover (10) is arranged on a side of the oil pump body (9) away from the motor (5).

8. A novel aviation oil pump according to claim 4, characterized in that: Also includes: A partition (3), the partition (3) being arranged in the installation space (102) and dividing the threading space (101) into a plurality of wire ducts (4); A conductor rod (11), the conductor rod (11) being used to guide the power cord (2), the conductor rod (11) being arranged in the wire threading space (101), the conductor rods (11) being arranged at both ends of the conductor trough (4), the conductor rod (11) being arranged parallel to the arrangement direction of the conductor trough (4); the conductor rod (11) being located on a side of the conductor trough (4) close to the installation space (102).

9. A novel aviation oil pump according to claim 8, characterized in that: The conductor rod (11) has an annular wire groove (1101), and the annular wire groove (1101) is composed of a plurality of wire grooves arranged in sequence.

10. A novel aviation oil pump according to claim 8, characterized in that: The power line (2) comprises a first radial section (201), an axial section (202) and a second radial section (203); the first radial section (201), the axial section (202) and the second radial section (203) are connected in sequence; the first radial section (201) bypasses the conductor rod (11) on one side, and the second radial section (203) bypasses the conductor rod (11) on the other side.

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