Oiling mechanism of oiling machine
By using gear pumps instead of plunger pumps in oil injection machines, the problems of many wearable parts and short service life of plunger pumps are solved, and low maintenance and low cost oil injection effects are achieved.
Patent Information
- Application Number
- CN202421654097.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The plunger pumps used in existing oil injection machines have many wearable parts under frequent high pressure working conditions, which shortens the service life and is high maintenance cost.
A gear pump is used instead of the plunger pump, and the first gear and second gear in the gear pump body are driven by a servo motor to achieve the extraction and transportation of butter.
The gear pump has a simple structure, is maintenance-free, and has a low cost of use, which extends the service life of the equipment.
Smart Images

Figure CN222773018U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil injection machines, in particular to an oil injection mechanism of an oil injection machine. Background Art
[0002] Oiling machines are mainly used to transport lubricating oil in the lubrication systems of various mechanical equipment. The products are widely used in the lubrication systems of mechanical equipment in various industries such as CNC machinery, machining centers, elevators, production lines, machine tools, forging, casting, textiles, plastics, woodworking, rubber, mining, metallurgy, construction, printing, food, etc., as well as centralized lubrication systems of automobile chassis.
[0003] At present, most oiling machines use a plunger pump to transport butter to complete the oiling work. However, the plunger pump is in a frequent high-pressure working state for a long time, which makes the plunger pump accessories have many vulnerable parts, shortens the service life, and has high maintenance and use costs. Utility Model Content
[0004] The purpose of the utility model is to provide an oil injection mechanism of an oil injection machine to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil injection mechanism of an oil injection machine, comprising a gear pump body, the upper end of the gear pump body is detachably connected to a mounting seat by bolts, the upper end of the mounting seat is fixedly connected to a servo motor by a reducer, the output end of the servo motor is fixedly connected to a drive shaft, the lower end of the drive shaft is vertically rotatably connected to the inside of the gear pump body, a first gear is sleeved on the outer side of the lower end of the drive shaft and is fixedly connected, the first gear is meshingly connected to a second gear, the second gear is rotatably connected to the inside of the gear pump body by installing a vertical shaft, one side of the gear pump body is fixedly connected to a ball valve by an exhaust pipe, and the other side of the gear pump body is fixedly connected to an oil injection pipe.
[0006] Preferably, the installation vertical shaft vertically penetrates through and is fixedly connected to the middle of the second gear, and the upper and lower ends of the installation vertical shaft are rotatably connected to the inside of the gear pump body.
[0007] Preferably, the first gear and the second gear are located on the same horizontal plane and are symmetrically arranged front to back, and the first gear is located behind the second gear.
[0008] Preferably, the exhaust pipe and the oil filling pipe are arranged horizontally and symmetrically and are both connected to the interior of the gear pump body.
[0009] Preferably, an oil inlet is provided at the lower end of the gear pump body.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model utilizes a gear pump instead of a plunger pump to extract butter, transports the butter to the oil filling pipe, and performs oil filling, while the gear pump has a simple structure, is maintenance-free, and has a low cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the dismantling structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the connection structure between the first gear and the second gear of the utility model;
[0013] Figure 3 It is a schematic diagram of the external structure of the utility model;
[0014] Figure 4 This is a schematic diagram of the installation structure of the first gear and the second gear in the gear pump body of the utility model.
[0015] In the figure: 1, gear pump body; 2, mounting seat; 3, reducer; 4, servo motor; 5, drive shaft; 6, first gear; 7, mounting vertical shaft; 8, second gear; 9, exhaust pipe; 10, ball valve; 11, oil injection pipe. The first gear and the second gear meshing motion DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-4 The utility model provides a technical solution: an oil injection mechanism of an oil injection machine, comprising a gear pump body 1, an oil inlet is opened at the lower end of the gear pump body 1, the upper end of the gear pump body 1 is detachably connected with a mounting seat 2 by bolts, the upper end of the mounting seat 2 is fixedly connected with a servo motor 4 by a reducer 3, a driving shaft 5 is fixedly connected to the output end of the servo motor 4, the lower end of the driving shaft 5 is vertically rotatably connected to the inside of the gear pump body 1, a first gear 6 is sleeved and fixedly connected to the outside of the lower end of the driving shaft 5, the first gear 6 is meshingly connected with a second gear 8, the second gear 8 is rotatably connected to the inside of the gear pump body 1 by installing a vertical shaft 7, a ball valve 10 is fixedly connected to one side of the gear pump body 1 through an exhaust pipe 9, and an oil injection pipe 11 is fixedly connected to the other side of the gear pump body 1.
[0018] The exhaust pipe 9 and the oil filling pipe 11 are horizontally symmetrically arranged and are both communicated with the interior of the gear pump body 1, so as to facilitate the extraction of air in the gear pump body 1 and the discharge of butter in the gear pump body 1. The installation vertical shaft 7 vertically penetrates and is fixedly connected to the middle of the second gear 8. The upper and lower ends of the installation vertical shaft 7 are rotatably connected to the interior of the gear pump body 1, so as to facilitate the support of the second gear 8 inside the gear pump body 1. The first gear 6 and the second gear 8 are located on the same horizontal plane and are symmetrically arranged front to back. The first gear 6 is located behind the second gear 8, so as to facilitate the first gear 6 to drive the second gear 8 to rotate and transport butter.
[0019] Specifically, when using the utility model, the gear pump body 1 is fixed on the oil pressure plate of the oil injection machine, the circuit is turned on, the air between the oil pressure plate and the butter is discharged through the ball valve 10, the servo motor 4 is started, the servo motor 4 rotates the drive shaft 5, and the drive shaft 5 drives the first gear 6 to drive the second gear 8 to rotate inside the gear pump body 1. During this process, the closed volume on the side where the first gear 6 and the second gear 8 exit the meshing increases to form an oil suction chamber, and the closed volume on the side where they enter the meshing decreases to form an oil pressure chamber. The heated butter in the oil barrel will enter the oil suction chamber through the oil inlet at the lower end of the gear pump body 1, and be discharged into the oil injection pipe 11 from the oil outlet connected to the oil pressure chamber.
[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An oil injection mechanism of an oil injection machine, characterized in that: The invention comprises a gear pump body (1), the upper end of the gear pump body (1) is detachably connected to a mounting seat (2) by means of bolts, the upper end of the mounting seat (2) is fixedly connected to a servo motor (4) by means of a reducer (3), the output end of the servo motor (4) is fixedly connected to a drive shaft (5), the lower end of the drive shaft (5) is vertically rotatably connected to the inside of the gear pump body (1), a first gear (6) is sleeved on the outer side of the lower end of the drive shaft (5) and is fixedly connected, the first gear (6) is meshingly connected to a second gear (8), the second gear (8) is rotatably connected to the inside of the gear pump body (1) by means of a mounting vertical shaft (7), one side of the gear pump body (1) is fixedly connected to a ball valve (10) by means of an exhaust pipe (9), and the other side of the gear pump body (1) is fixedly connected to an oil filling pipe (11).
2. The oil injection mechanism of an oil injection machine according to claim 1, characterized in that: The mounting vertical shaft (7) vertically penetrates and is fixedly connected to the middle of the second gear (8), and the upper and lower ends of the mounting vertical shaft (7) are both rotatably connected to the inside of the gear pump body (1).
3. The oil injection mechanism of an oil injection machine according to claim 1, characterized in that: The first gear (6) and the second gear (8) are located on the same horizontal plane and are arranged symmetrically in front and back, and the first gear (6) is located behind the second gear (8).
4. The oil injection mechanism of an oil injection machine according to claim 1, characterized in that: The exhaust pipe (9) and the oil injection pipe (11) are arranged horizontally and symmetrically and are both communicated with the interior of the gear pump body (1).
5. The oil injection mechanism of an oil injection machine according to claim 1, characterized in that: An oil inlet is provided at the lower end of the gear pump body (1).