Gear grinding machining equipment for inner rotor of lubricating oil pump assembly

Abstract

The utility model discloses gear grinding machining equipment for an inner rotor of a lubricating oil pump assembly, and belongs to the field of mechanical and electrical installation. According to the technical scheme, a working table is arranged above a main machine frame in a matched mode, an axial correction chassis is arranged in the center of the working table in a matched mode, a machining rotating shaft penetrates through the center of the axial correction chassis, and a machining driving motor is arranged at the bottom of the machining rotating shaft in a matched mode. Mounting bottom supports are arranged on the upper portion of the workbench in a matched mode, the mounting bottom supports are symmetrically arranged on the two sides of the machining rotating shaft, and gear grinding output components are arranged on the upper portions of the mounting bottom supports in a matched mode. In the working process, the gear grinding machining precision of the inner rotor is improved, and the comprehensive machining precision is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical installation, and in particular to a gear grinding equipment for the internal rotor of a lubricating oil pump assembly. Background Technology

[0002] The internal rotor of a lubricating oil pump is a core component of an automotive hydraulic system, and its tooth surface accuracy directly affects the pump's sealing performance and operating efficiency. Traditional internal rotor gear grinding equipment suffers from the following problems:

[0003] During operation, the single-sided grinding of this equipment results in long processing times and frequent shutdowns for adjustments. Furthermore, uneven coolant spraying during grinding can easily lead to workpiece thermal deformation. Grinding debris is also difficult to clean in a timely manner, affecting the processing environment and equipment lifespan. To address these issues, this invention proposes a high-precision internal rotor gear grinding equipment integrating dual-grinding output, automatic lubrication, and waste material recycling. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art by providing a grinding equipment for the internal rotor of a lubricating oil pump assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gear grinding machine for an internal rotor of a lubricating oil pump assembly includes a main frame, a worktable mounted on top of the main frame, an axial alignment chassis mounted at the center of the worktable, a machining shaft extending through the center of the axial alignment chassis, a machining drive motor mounted at the bottom of the machining shaft, mounting supports mounted above the worktable, symmetrically positioned on both sides of the machining shaft, gear grinding output components mounted above the mounting supports, and a power supply motor mounted above each gear grinding output component.

[0007] Preferably, a lateral limiting component is provided at the rear side of the machining spindle, the lateral limiting component is provided at the rear side of the gear grinding output component, and the lateral limiting component is fixedly installed above the worktable.

[0008] Preferably, the grinding output component includes an upper fixing plate, a rear limiting plate, an oil reservoir, a micro oil pump, a grinding disc, and an oil injection outlet. The upper fixing plate is configured to cooperate with the output end of the power supply motor. The rear limiting plate is configured to cooperate with the outer side of the upper fixing plate. The oil reservoir is configured to cooperate with the outer side of the rear limiting plate. The micro oil pump is configured to cooperate with the inner side of the oil reservoir. The grinding disc and the oil injection outlet are configured to cooperate with the other side of the oil reservoir. The oil injection outlet is engaged with the front side of the grinding disc.

[0009] Preferably, a stabilizing turntable and a coupling are coaxially arranged at the bottom of the machining shaft, the stabilizing turntable is configured to cooperate with the machining drive motor, and a coupling is arranged above the stabilizing turntable.

[0010] Preferably, a protective bushing is provided above the axial correction chassis, and the protective bushing is coaxially fitted with the machining shaft. Two symmetrically arranged internal gear machining molds are provided above the protective bushing. The internal gear machining molds are coaxially mounted on the machining shaft, and their positions correspond to the gear grinding output component. An upper limit block is coaxially provided above the internal gear machining molds.

[0011] Preferably, the workbench is provided with a waste material groove hole, and a waste material storage box is provided below the waste material groove hole, and the waste material storage box is snapped into place below the workbench.

[0012] Compared with the prior art, this utility model provides a grinding equipment for the internal rotor of a lubricating oil pump assembly, which has the following beneficial effects:

[0013] 1. This device uses dual grinding components for synchronous grinding, which improves the grinding accuracy of the inner rotor during operation and effectively improves the overall machining accuracy.

[0014] 2. During the processing, the device's integrated lubrication system can reduce grinding temperature, automatically recycle waste materials, and reduce wear during equipment use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the gear grinding output component in a specific embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the component structure for machining the rotating shaft in a specific embodiment of this utility model.

[0018] In the diagram: 1. Main frame; 2. Scrap storage box; 3. Worktable; 4. Scrap groove hole; 5. Machining drive motor; 6. Machining shaft; 7. Axial correction chassis; 8. Mounting base; 9. Grinding output component; 10. Power supply motor; 11. Lateral limiting component; 101. Upper fixing plate; 102. Rear limiting plate; 103. Oil storage tank; 104. Miniature oil pump; 105. Grinding disc; 106. Oil injection outlet hole; 201. Stabilizing turntable; 202. Coupling; 203. Protective bushing; 204. Internal gear machining mold; 205. Upper limit block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1:

[0022] Reference Figure 1-3 A grinding machine for the inner rotor of a lubricating oil pump assembly, wherein the grinding machine for the inner rotor of the lubricating oil pump in this embodiment includes:

[0023] Main frame 1: Made of high-strength steel welded together, with anti-vibration pads at the bottom to ensure the stability of equipment operation.

[0024] Worktable 3: Horizontally fixed on top of the main frame 1, with a finely ground surface, and an axial correction base 7 at its center. The axial correction base 7 is a circular metal disc with a machining shaft 6 installed through its center. The machining shaft 6 is driven to rotate by a machining drive motor 5 at the bottom, with a motor power of 2.2kW and an adjustable speed range of 0-3000rpm.

[0025] Mounting bases 8 are symmetrically arranged on both sides of the machining shaft 6 and fixed to the worktable 3 by bolts. Each mounting base 8 has a grinding output component 9 mounted on top. The grinding output component 9 is driven by a power supply motor 10 with a power of 1.5kW, and is connected to the grinding output component 9 via belt drive.

[0026] Furthermore, the gear grinding output component 9 includes:

[0027] Upper fixing plate 101: connected to the output end of the power supply motor 10 via a keyway to ensure stable power transmission.

[0028] Rear limiting plate 102: welded to the outside of the upper fixing plate 101, used to support the oil storage tank 103 and the grinding disc 105.

[0029] Oil storage tank 103: with a volume of 2L, a built-in micro oil pump 104, an oil pump flow rate of 0.5L / min, and connected to the oil filling outlet 106 via a hose.

[0030] Grinding disc 105: Made of diamond grinding wheel, 80mm in diameter and 10mm thick, it is bolted to the side wall of oil reservoir 103. Its front oil outlet holes 106 are arranged in a ring array, with a hole diameter of 1mm, ensuring uniform lubricant coverage of the machined surface. This device integrates lubrication and grinding functions, reducing equipment downtime and improving machining accuracy and surface finish.

[0031] Furthermore, the bottom of the machining shaft 6 is connected to the machining drive motor 5 via a coupling 202. The coupling 202 is a flexible, perforated type, which can absorb vibration and compensate for axial misalignment. A stabilizing turntable 201 is installed above the coupling 202. The stabilizing turntable 201 has a diameter of 200mm and a thickness of 30mm, and is made of cast iron. It reduces vibration during high-speed rotation by increasing the moment of inertia. The radial runout of the machining shaft 6 is ≤0.01mm at a speed of 3000rpm, ensuring the positioning accuracy of the internal gear machining mold 204.

[0032] Example 2:

[0033] Reference Figure 1-3 Similar to Embodiment 1, but with a further improvement, the lateral limiting component 11 is an L-shaped steel plate, fixed to the rear side of the worktable 3 by bolts, and its front end is provided with a polyurethane buffer pad to limit the lateral displacement of the gear grinding output component 9. The protective bushing 203 is made of copper alloy and is sleeved on the outside of the machining shaft 6 to prevent grinding debris from entering the shaft gap and extend the equipment life.

[0034] Example 3:

[0035] Reference Figure 1-3 Similar to Example 1, but with a further improvement, the waste storage box 2 has a drawer-type structure with a volume of 50L and is equipped with casters at the bottom for easy removal and cleaning. The waste groove hole 4 is funnel-shaped, with the diameter gradually decreasing from the surface of the workbench downwards to prevent waste from accumulating and clogging.

[0036] The working principle of this device is as follows:

[0037] Workpiece installation: Place the inner rotor workpiece to be processed on the axial correction chassis 7, and perform coaxial positioning and clamping through the protective bushing 203 and the upper limit block 205.

[0038] Start processing: The processing drive motor 5 drives the processing shaft 6 to rotate the internal gear processing mold 204. At the same time, the grinding output components 9 on both sides grind the internal teeth of the workpiece synchronously under the drive of the power supply motor 10.

[0039] Lubrication and cooling: The miniature oil pump 104 of the gear grinding output component 9 draws lubricating oil from the oil reservoir 103 and sprays it into the contact area between the grinding disc 105 and the workpiece through the oil injection outlet 106, thereby reducing the grinding temperature and removing debris.

[0040] Waste collection: The waste generated during grinding falls into the waste storage box 2 below through the waste groove hole 4 on the worktable 3, realizing automatic cleaning.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gear grinding apparatus for an inner rotor of a lubricating oil pump assembly, characterized by, Including the main frame (1), the workbench (3) is arranged on the upper position of the main frame (1), the axial correction base (7) is arranged on the center position of the workbench (3), the machining rotating shaft (6) is arranged through the center position of the axial correction base (7), the machining driving motor (5) is arranged on the bottom position of the machining rotating shaft (6), the mounting bottom support (8) is arranged on the upper position of the workbench (3), the mounting bottom support (8) is arranged on the both sides of the machining rotating shaft (6), the gear grinding output component (9) is arranged on the upper position of the mounting bottom support (8), the gear grinding output component (9) is arranged on the both sides of the machining rotating shaft (6), and the energy supply motor (10) is arranged on the upper position of the gear grinding output component (9).

2. A device for gear grinding of an inner rotor of a lubricating oil pump assembly according to claim 1, characterized in that The transverse limiting component (11) is arranged on the rear side of the machining rotating shaft (6), the transverse limiting component (11) is arranged on the rear side of the gear grinding output component (9), and the transverse limiting component (11) is fixedly installed on the upper position of the workbench (3).

3. A gear grinding apparatus for an inner rotor of a lubricating oil pump assembly as set forth in claim 1, wherein The gear grinding output component (9) comprises an upper fixed plate (101), a rear limiting plate (102), an oil tank (103), a micro oil pump (104), a gear grinding disc (105) and an oil injection output hole (106), the upper fixed plate (101) is arranged on the output end of the energy supply motor (10), the rear limiting plate (102) is arranged on the outer side of the upper fixed plate (101), the oil tank (103) is arranged on the outer side of the rear limiting plate (102), the micro oil pump (104) is arranged on the inner side of the oil tank (103), the gear grinding disc (105) and the oil injection output hole (106) are arranged on the other side of the oil tank (103), and the oil injection output hole (106) is clamped on the front side of the gear grinding disc (105).

4. A device for gear grinding of an inner rotor of a lubricating oil pump assembly according to claim 1, characterized in that The stable rotating disc (201) and the shaft coupling (202) are coaxially arranged on the bottom position of the machining rotating shaft (6), the stable rotating disc (201) is arranged on the machining driving motor (5), and the shaft coupling (202) is arranged on the upper position of the stable rotating disc (201).

5. A device for gear grinding of an inner rotor of a lubricating oil pump assembly according to claim 2, characterized in that The protection shaft sleeve (203) is arranged on the upper position of the axial correction base (7), the protection shaft sleeve (203) is coaxially arranged on the machining rotating shaft (6), two symmetrical inner tooth machining molds (204) are arranged on the upper position of the protection shaft sleeve (203), the inner tooth machining mold (204) is coaxially arranged on the machining rotating shaft (6), the position of the inner tooth machining mold (204) corresponds to the gear grinding output component (9), and the upper limiting block (205) is coaxially arranged on the upper position of the inner tooth machining mold (204).

6. A gear grinding apparatus for an inner rotor of a lubricating oil pump assembly as set forth in claim 1, wherein The waste groove hole (4) is arranged on the workbench (3), the waste storage box (2) is arranged on the lower position of the waste groove hole (4), and the waste storage box (2) is clamped on the lower position of the workbench (3).

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