Needle bearing oiling device

Abstract

The utility model relates to a needle bearing oiling device which is provided with a machine frame, guide strips are fixed on a platen face of the machine frame at intervals, a material channel with two open ends is formed in the space between the guide strips, a needle bearing to be filled with grease moves along the material channel, an oiling rod capable of doing lifting motion is arranged above the material channel, and the oiling rod is connected with the machine frame. The oil injection rod is provided with an axial cavity for storing lubricating grease, and oil injection holes for injecting the lubricating grease into the inner ring of the needle bearing are evenly formed in the bottom of the oil injection rod in the circumferential direction. According to the needle bearing oiling device, the needle bearings are arranged in the material channel and move to the oiling position along the material channel, the oiling rod capable of doing lifting motion descends to be inserted into the needle bearings, lubricating grease is injected into inner holes of the needle bearings through the oiling holes, and therefore automatic operation of needle bearing oiling is achieved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing manufacturing, in particular to an oil injection device for a needle roller bearing. Background Art

[0002] A needle roller bearing is a roller bearing with cylindrical rollers. Although the needle rollers have a small cross-section, the overall bearing still has a high load-bearing capacity. Due to the compact radial structure of the needle roller bearing, it is particularly suitable for support structures where the radial installation size is restricted, such as inside the support rods of household seats, office seats, etc.

[0003] To ensure the lubrication of the bearing after long-term use, generally, lubricating grease needs to be injected into the bearing after the needle roller bearing is manufactured. However, there are a large number of bearings produced in batches. Relying solely on manual operation to apply lubricating grease into the bearing is obviously inefficient and has a large working intensity. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides an oil injection device for a needle roller bearing that is convenient, fast, and can effectively improve work efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problem is: an oil injection device for a needle roller bearing, which has a frame. Guide strips are fixedly spaced on the tabletop of the frame. The space between the guide strips forms a material channel that is open at both ends. The needle roller bearing to be filled with grease moves along the material channel. An oil injection rod that can move up and down is arranged above the material channel. The oil injection rod has an axial cavity for storing lubricating grease, and oil injection holes for injecting lubricating grease into the inner hole of the needle roller bearing are circumferentially arranged at the bottom of the oil injection rod.

[0006] Notches that are perpendicular to and of the same width as the material channel are formed on the guide strips outside the material channel. The outside of the notches is connected to a conveying channel for externally conveying the needle roller bearing, and the inside of the notches is connected to the material channel.

[0007] A pushing cylinder is installed on the tabletop of the frame at the rear end of the material channel. A pushing block is fixedly connected to the end of the piston rod of the pushing cylinder. The side of the pushing block facing the material channel has an inner arc surface that matches the outer peripheral surface of the needle roller bearing.

[0008] A first guide wheel is rotatably arranged inside the guide strip on the inner side of the material channel, and two second guide wheels that cooperate with the first guide wheel to abut against the outer side surface of the needle roller bearing are arranged side by side inside the guide strip on the outer side of the material channel.

[0009] On the machine frame table board beside the material channel, there is a driving mechanism for driving the lifting movement of the oil injection rod. The driving mechanism includes a bottom plate fixed on the machine frame table board. A pair of guide rods are fixedly spaced on the bottom plate. The top of the guide rods is fixed with a mounting plate. An elevating cylinder is fixed on the mounting plate. A lifting plate is slidably arranged on the guide rods. The piston rod of the elevating cylinder is fixedly connected with the lifting plate. The oil injection rod is fixedly connected to one end of the lifting plate.

[0010] A guide sleeve that is slidably matched with the guide rod is installed on the lifting plate.

[0011] A metering valve is installed on the lifting plate. The outlet end of the metering valve is connected to the axial cavity of the oil injection rod. The inlet end pipeline of the metering valve is connected to the pressurized lubricating grease.

[0012] The beneficial effect of the present utility model is that the present utility model arranges the needle roller bearings in the material channel and moves them along the material channel to the oil injection position. The oil injection rod that can make a lifting movement descends and inserts into the needle roller bearings, and the lubricating grease is injected into the inner hole of the needle roller bearings through the oil injection holes, thereby realizing the automated operation of oil injection for the needle roller bearings and improving the work efficiency. Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is a partially enlarged schematic structural diagram of the present utility model at the oil injection position.

[0016] In the figure: 1. Machine frame, 2. Guide strip, 3. Material channel, 4. Needle roller bearing, 5. Oil injection rod, 5-1. Oil injection hole, 6. Notch, 7. Pushing cylinder, 8. Pushing block, 8-1. Inner arc surface, 9. First guide wheel, 10. Second guide wheel, 11. Bottom plate, 12. Guide rod, 13. Mounting plate, 14. Elevating cylinder, 15. Lifting plate, 16. Guide sleeve, 17. Metering valve. Detailed Embodiments

[0017] Now, the present utility model will be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0018] As Figure 1 、 Figure 2A needle roller bearing oil injection device shown in the figure includes a frame 1 with a table board surface. On the table board surface of the frame 1, two guiding bars 2 are fixed at intervals, and the space between the two guiding bars 2 forms a material channel 3 that is open at both the front and rear ends. On the guiding bar 2 outside the material channel 3, there is a notch 6 that is perpendicular to and of the same width as the material channel 3. The outside of the notch 6 is connected to a conveying channel for conveying the needle roller bearing 4 externally, and the inside of the notch 6 is connected to the material channel 3.

[0019] On the table board surface of the frame 1 at the rear end of the material channel 3, a pushing cylinder 7 is installed. The end of the piston rod of the pushing cylinder 7 is fixedly connected with a pushing block 8. The side surface of the pushing block 8 facing the material channel 3 has an inner arc surface 8-1 that matches the outer peripheral surface of the needle roller bearing 4. The needle roller bearing 4 to be filled with grease moves along the material channel 3 to the oil injection position. Above this oil injection position, there is an oil injection rod 5 that can move up and down. The outer diameter of the oil injection rod 5 has a clearance fit with the inner hole of the needle roller bearing 4. The oil injection rod 5 has an axial cavity for storing lubricating grease, and oil injection holes 5-1 for injecting lubricating grease into the inner hole of the needle roller bearing 4 are evenly arranged circumferentially at the bottom of the oil injection rod 5.

[0020] On the table board surface of the frame 1 beside the material channel 3, a driving mechanism for driving the up and down movement of the oil injection rod 5 is provided. The driving mechanism includes a bottom plate 11 fixed on the table board surface of the frame 1. A pair of guiding rods 12 are fixed at intervals on the bottom plate 11. The top of the guiding rods 12 is fixed with a mounting plate 13. An elevating cylinder 14 is fixed on the mounting plate 13. An elevating plate 15 is slidably arranged on the guiding rods 12. A guiding sleeve 16 that is slidably matched with the guiding rods 12 is installed on the elevating plate 15. The piston rod of the elevating cylinder 14 is fixedly connected with the elevating plate 15. The oil injection rod 5 is fixedly connected to one end of the elevating plate 15. A metering valve 17 is installed on the elevating plate 15. The outlet end of the metering valve 17 is connected to the axial cavity of the oil injection rod 5, and the inlet end pipeline of the metering valve 17 is connected to the pressurized lubricating grease.

[0021] Inside the guiding bar 2 on the inner side of the material channel 3 where the oil injection position is located, a first guiding wheel 9 is rotatably arranged. Inside the guiding bar 2 on the outer side of the material channel 3, two second guiding wheels 10 that cooperate with the first guiding wheel 9 to abut against the outer side surface of the needle roller bearing 4 are arranged side by side.

[0022] The needle roller bearings 4 arranged by the vibrating bowl are conveyed along the conveying channel to the notch 6 and then enter the material channel 3. The feeding cylinder 7 that makes a reciprocating telescopic motion pushes the needle roller bearings 4 entering the material channel 3 forward in sequence through the feeding block 8. The front needle roller bearings 4 are pushed forward by the needle roller bearings 4 arranged behind. When the foremost needle roller bearing 4 reaches the lubricating position, it is clamped by the first guide wheel 9 and the second guide wheel 10. At this moment, the lifting cylinder 14 pushes the lifting plate 15 downward, and the lower end of the lubricating rod 5 is pushed into the inner hole of the needle roller bearing 4. At this instant, the metering valve 17 acts, and the lubricating grease is injected into the needle roller bearing 4 through the lubricating hole 5-1. The needle roller bearings with grease are pushed by the subsequent moving needle roller bearings 4 and move along the material channel 3 towards the blanking port in front of the material channel 3, thereby completing the lubricating process of the needle roller bearings 4. By repeating this process, the lubricating operation of all the inner parts of the needle roller bearings 4 can be completed, thus realizing the automated lubricating operation of the needle roller bearings 4 and improving the work efficiency.

[0023] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A needle bearing oiling device, comprising a frame (1), characterized in that: Guide strips (2) are fixed at intervals on the table surface of the frame (1), and the space between the guide strips (2) forms a material channel (3) with two ends open. The needle bearing (4) to be filled with grease moves along the material channel. An oil injection rod (5) capable of lifting and lowering movement is provided above the material channel (3). The oil injection rod (5) has an axial cavity for storing lubricating grease, and oil injection holes (5-1) for injecting lubricating grease into the inner hole of the needle bearing (4) are provided around the bottom of the oil injection rod (5).

2. The needle bearing oiling device according to claim 1, characterized in that: A notch (6) perpendicular to the material channel (3) and having the same width as the material channel (3) is provided on the guide strip (2) outside the material channel (3). The outer side of the notch (6) is connected to the transmission channel of the external transmission needle roller bearing (4), and the inner side of the notch (6) is connected to the material channel (3).

3. The needle bearing oiling device according to claim 2, characterized in that: A pushing cylinder (7) is installed on the table surface of the frame (1) at the rear end of the material channel (3), and a pushing block (8) is fixedly connected to the end of the piston rod of the pushing cylinder (7). The side of the pushing block (8) facing the material channel (3) has an inner arc surface (8-1) matching the outer peripheral surface of the needle bearing (4).

4. The needle bearing oiling device according to claim 3, characterized in that: A first guide wheel (9) is rotatably arranged in the guide strip (2) on the inner side of the material channel (3), and two second guide wheels (10) are arranged side by side in the guide strip (2) on the outer side of the material channel (3) to cooperate with the first guide wheel (9) and to abut against the outer side of the needle bearing (4).

5. The needle bearing oiling device according to claim 1, characterized in that: A driving mechanism for driving the oil injection rod (5) to move up and down is provided on the table surface of the frame (1) beside the material channel (3), and the driving mechanism includes a bottom plate (11) fixed on the table surface of the frame (1), a pair of guide rods (12) are fixed on the bottom plate (11) at a distance, a mounting plate (13) is fixed on the top of the guide rod (12), a lifting cylinder (14) is fixed on the mounting plate (13), a lifting plate (15) is slidably provided on the guide rod (12), a piston rod of the lifting cylinder (14) is fixedly connected to the lifting plate (15), and the oil injection rod (5) is fixedly connected to one end of the lifting plate (15).

6. The needle bearing oiling device according to claim 5, characterized in that: The lifting plate (15) is provided with a guide sleeve (16) which is slidably matched with the guide rod (12).

7. The needle bearing oiling device according to claim 5, characterized in that: A metering valve (17) is installed on the lifting plate (15), the outlet end of the metering valve (17) is connected to the axial cavity of the oil injection rod (5), and the inlet end pipeline of the metering valve (17) is connected to the pressurized lubricating grease.

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