Cam divider with lubricating oil convenient to replace

By using an independent pipeline design and an automated lubricating oil replacement system, the problems of impurity deposition and cross-contamination during the lubricating oil replacement process in traditional cam dividers are solved, achieving efficient and convenient lubricating oil replacement and ensuring equipment cleanliness and reliability.

CN224079564UActive Publication Date: 2026-04-03KUNSHAN NOHITO PRECISION MACHINERY AUTOMATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional cam dividers suffer from impurity deposition and cross-contamination during lubrication oil changes, affecting equipment accuracy and lifespan.

Method used

The system features separate old lubricating oil discharge lines and new lubricating oil pump in lines, enabling automated replacement via No. 1 and No. 2 oil pumps. It is also equipped with a controller and electric heating wire to improve fluidity and cleanliness.

Benefits of technology

It automates and simplifies lubricant replacement, avoids cross-contamination of impurities, improves equipment reliability and service life, and reduces labor costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224079564U_ABST
Patent Text Reader

Abstract

The cam divider comprises a cam divider body, an oil storage tank, a waste oil tank, a first oil pump and a second oil pump, the oil storage tank, the waste oil tank, the first oil pump and the second oil pump are all arranged on the back face of the cam divider body, and the first oil pump and the second oil pump are arranged between the oil storage tank and the waste oil tank. The first oil pump is located over the second oil pump. By designing the old lubricating oil discharging pipeline and the new lubricating oil pumping pipeline which are independent, automation and convenience of the lubricating oil replacement process are achieved, an operator can replace the lubricating oil only through simple operation of the controller, time and labor cost are greatly saved, and in the replacement process, the replacement efficiency is greatly improved. When new lubricating oil is pumped in, the interior of the cam divider body can be rinsed, impurities accumulated at the bottom are effectively washed away, cleanliness of the interior of the divider is guaranteed, the reliability of equipment is improved, and the service life of the equipment is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of cam divider technology, specifically to a cam divider that facilitates lubrication oil replacement. Background Technology

[0002] A cam divider, also known as a cam indexer or intermittent divider in engineering, is a high-precision rotary device widely used in various automated mechanical equipment. It mainly consists of key components such as a cam, indexing plate, and rollers. Through the seamless meshing of the cam on the input shaft and the indexing plate on the output shaft, continuous rotary motion is converted into intermittent stepping output motion. This mechanical transmission method has advantages such as high precision, smooth operation, and high reliability, playing a vital role in many industries including automated production lines, machine tool processing, packaging machinery, and printing machinery. The high-speed rotation of the internal parts of the cam divider generates a large amount of heat and friction; therefore, good lubrication is a key factor in ensuring the normal operation of the divider and extending its service life. Traditional cam dividers require manual oil changes, a complex, tedious, time-consuming, and labor-intensive process.

[0003] The patented high-low speed cam divider, disclosed in announcement number CN222011609U, replaces the lubricating oil in the high-low speed cam divider body by draining the lubricating oil from the storage mechanism into the high-low speed cam divider body through an oil changing mechanism, thereby reducing the workload of workers and improving the convenience of oil changing.

[0004] Although the aforementioned high- and low-speed cam divider achieves automatic lubricant replacement by introducing a storage mechanism, an oil changing mechanism, and a drying mechanism, improving the practicality and convenience of the equipment, its specific structural design has some shortcomings that warrant further optimization and improvement. For example, because one end of the three-way valve communicates with the interior of the high- and low-speed cam divider body, the top end of the three-way valve communicates with the interior of the storage tank, and the bottom end of the three-way valve communicates with the interior of the waste bin, this design means that both the discharge of the old lubricant and the pumping in of the new lubricant must pass through the three-way valve. During the discharge of the old lubricant, impurities in the oil may accumulate inside or at the valve itself. When new lubricant is pumped in, these residual impurities may be carried back into the interior of the high- and low-speed cam divider body. Once these impurities enter the body, they may accelerate the wear of parts, affecting the divider's accuracy and lifespan, and even causing malfunctions.

[0005] Therefore, it is necessary to invent a cam divider that facilitates lubrication oil replacement to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a cam divider that facilitates lubrication oil replacement, thereby solving the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cam divider for easy lubrication oil replacement, comprising a cam divider body, an oil storage tank, a waste oil tank, a first oil pump, and a second oil pump. The oil storage tank, waste oil tank, first oil pump, and second oil pump are all located on the back of the cam divider body. The first oil pump and second oil pump are positioned between the oil storage tank and the waste oil tank, with the first oil pump located directly above the second oil pump. An oil inlet is fixedly connected to the top of the oil storage tank, and an oil outlet is fixedly connected to the bottom of the oil storage tank. The waste oil tank... The top is fixedly connected with an inlet and outlet oil pipe. The input end of the No. 1 oil pump is equipped with a No. 1 oil suction pipe, and the input end of the No. 1 oil suction pipe is connected to the outlet oil pipe. The output end of the No. 1 oil pump is equipped with a No. 1 pump oil pipe, and the output end of the No. 1 pump oil pipe extends into the body of the cam divider. The input end of the No. 2 oil pump is equipped with a No. 2 oil suction pipe, and the input end of the No. 2 oil suction pipe extends into the body of the cam divider. The output end of the No. 2 oil pump is equipped with a No. 2 pump oil pipe, and the output end of the No. 2 pump oil pipe is connected to the inlet and outlet oil pipes.

[0008] By integrating components such as oil storage tanks, waste oil tanks, No. 1 oil pump, and No. 2 oil pump, the automatic replacement of lubricating oil is achieved, improving the maintenance efficiency and convenience of the equipment.

[0009] Preferably, the output end of the No. 1 pump oil pipe is attached to the top inner surface of the cam divider body, and the input end of the No. 2 sucker pipe is attached to the bottom inner surface of the cam divider body.

[0010] The output end of the No. 1 pump oil pipe is set to fit against the top surface of the cam divider body, so that when the new lubricating oil is pumped in, it can flush the inside of the cam divider body from top to bottom, making it easier to flush away the impurities accumulated at the bottom; the input end of the No. 2 oil suction pipe is set to fit against the bottom surface of the cam divider body, making it easier to drain the old lubricating fluid inside the cam divider body as cleanly as possible.

[0011] Preferably, a controller is installed on the back of the cam divider body, and both the No. 1 oil pump and the No. 2 oil pump are electrically connected to the controller.

[0012] By electrically connecting the controller to the oil pump, automatic control of the oil pump is achieved, improving the automation level and ease of operation of the equipment.

[0013] Preferably, control valves are installed in the middle of the No. 1 oil extraction pipe, the No. 1 pump oil pipe, the No. 2 oil extraction pipe, and the No. 2 pump oil pipe.

[0014] The design of the control valves allows each pipeline to be controlled independently, facilitating precise operation and maintenance, and improving the flexibility and reliability of the equipment.

[0015] Preferably, a first loading sleeve and a second loading sleeve are installed on the back of the cam divider body, the oil storage tank is movably inserted into the first loading sleeve, and the waste oil tank is movably inserted into the second loading sleeve.

[0016] The design of No. 1 and No. 2 loading sleeves enables the rapid installation and disassembly of oil storage tanks and waste oil tanks, facilitating the replacement and maintenance of lubricating oil and improving the maintainability and ease of use of the equipment.

[0017] Preferably, the bottom of the first loading sleeve is provided with a through hole, the through hole is matched with the oil outlet, and the bottom end of the oil outlet passes through the through hole and extends to the bottom of the first loading sleeve.

[0018] The through hole at the bottom of the No. 1 loading sleeve matches the oil outlet port, a design that allows the oil outlet port to extend directly to the bottom of the loading sleeve.

[0019] Preferably, both the oil storage tank and the waste oil tank are equipped with locking movable parts, and both the first loading sleeve and the second loading sleeve are equipped with locking fixed parts. The locking movable parts on the surface of the oil storage tank are engaged with the locking fixed parts on the surface of the first loading sleeve, and the locking movable parts on the surface of the waste oil tank are engaged with the locking fixed parts on the surface of the second loading sleeve.

[0020] The locking movable parts installed on the surface of the oil storage tank and waste oil tank engage with the locking fixing parts on the surface of the No. 1 loading sleeve and the No. 2 loading sleeve. This design facilitates quick positioning and fixing of the oil storage tank and waste oil tank.

[0021] Preferably, the inner wall of the first loading sleeve is provided with a hollow interlayer, and an electric heating wire is spirally arranged inside the hollow interlayer. The electric heating wire is electrically connected to the controller.

[0022] The hollow interlayer inside the wall of the No. 1 loading sleeve is equipped with an electric heating wire spirally installed. This design allows the electric heating wire to be energized and heated by a controller, thereby heating the lubricating oil in the oil storage tank and improving the fluidity and pumping efficiency of the lubricating oil.

[0023] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0024] 1. By designing independent old lubricating oil discharge pipelines and new lubricating oil pumping pipelines, the lubricating oil replacement process is automated and convenient. Operators can easily replace the lubricating oil by simply operating the controller, which greatly saves time and labor costs. During the replacement process, when the new lubricating oil is pumped in, it can clean the inside of the cam divider body, effectively flushing away impurities accumulated at the bottom, ensuring the cleanliness of the divider's interior, and improving the reliability and service life of the equipment.

[0025] 2. Both the oil storage tank and the waste oil tank are fastened to the No. 1 loading sleeve and the No. 2 loading sleeve by means of locking movable parts and locking fixed parts, which facilitates disassembly and replacement and makes subsequent cleaning easier;

[0026] 3. An electric heating wire is spirally installed in the hollow jacket inside the No. 1 loading sleeve. The electric heating wire is electrically connected to the controller. The controller can control the electric heating wire to generate heat, thereby heating the lubricating oil in the oil storage tank to improve its fluidity and facilitate pumping. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention from the rear view.

[0028] Figure 2 This is a schematic diagram of the overall structure of the present invention from a frontal view.

[0029] Figure 3 This is a schematic diagram of the structure of the oil storage tank of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the waste oil tank of this utility model;

[0031] Figure 5 This is a cross-sectional view of the No. 1 loading sleeve of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Cam divider body; 2. Oil storage tank; 3. Waste oil tank; 4. No. 1 oil pump; 5. No. 2 oil pump; 6. Oil injection port; 7. Oil outlet port; 8. Inlet and outlet oil ports; 9. No. 1 oil extraction pipe; 10. No. 1 pump oil pipe; 11. No. 2 oil extraction pipe; 12. No. 2 pump oil pipe; 13. Controller; 14. No. 1 loading sleeve; 15. No. 2 loading sleeve; 16. Through hole; 17. Locking movable part; 18. Locking fixing part; 19. Hollow sandwich layer; 20. Electric heating wire. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] This utility model provides, for example Figure 1-5The cam divider shown is a cam divider body 1 for easy lubrication oil replacement, comprising an oil reservoir 2, a waste oil tank 3, a first oil pump 4, and a second oil pump 5. The oil reservoir 2, waste oil tank 3, first oil pump 4, and second oil pump 5 are all located on the back of the cam divider body 1. The first oil pump 4 and second oil pump 5 are positioned between the oil reservoir 2 and the waste oil tank 3, with the first oil pump 4 located directly above the second oil pump 5. An oil inlet 6 is fixedly connected to the top of the oil reservoir 2, and an oil outlet 7 is fixedly connected to the bottom of the oil reservoir 2. An inlet and outlet port 7 are fixedly connected to the top of the waste oil tank 3. Oil pipe port 8, No. 1 oil suction pipe 9 is installed at the input end of No. 1 oil pump 4, and the input end of No. 1 oil suction pipe 9 is connected to oil outlet port 7. No. 1 pump oil pipe 10 is installed at the output end of No. 1 oil pump 4, and the output end of No. 1 pump oil pipe 10 extends into the body 1 of cam divider. No. 2 oil suction pipe 11 is installed at the input end of No. 2 oil pump 5, and the input end of No. 2 oil suction pipe 11 extends into the body 1 of cam divider. No. 2 pump oil pipe 12 is installed at the output end of No. 2 oil pump 5, and the output end of No. 2 pump oil pipe 12 is connected to inlet and outlet oil pipe ports 8.

[0036] In one aspect of this embodiment, the output end of the No. 1 pump oil pipe 10 is attached to the inner top surface of the cam divider body 1, and the input end of the No. 2 suction oil pipe 11 is attached to the inner bottom surface of the cam divider body 1. A controller 13 is installed on the back of the cam divider body 1. The No. 1 oil pump 4 and the No. 2 oil pump 5 are both electrically connected to the controller 13. Control valves are installed in the middle of the No. 1 suction oil pipe 9, the No. 1 pump oil pipe 10, the No. 2 suction oil pipe 11, and the No. 2 pump oil pipe 12. A No. 1 loading sleeve 14 and a No. 2 loading sleeve 15 are installed on the back of the cam divider body 1. The oil storage tank 2 is movably inserted into the No. 1 loading sleeve 14, and the waste oil tank 3 is movably inserted into the No. 2 loading sleeve 15. The bottom of the No. 1 loading sleeve 14 has an opening. Through hole 16, which matches oil outlet 7, with the bottom end of oil outlet 7 passing through through hole 16 and extending to below No. 1 loading sleeve 14. Locking movable parts 17 are installed on the surfaces of oil storage tank 2 and waste oil tank 3. Locking fixing parts 18 are installed on the surfaces of No. 1 loading sleeve 14 and No. 2 loading sleeve 15. Locking movable parts 17 on the surface of oil storage tank 2 are engaged with locking fixing parts 18 on the surface of No. 1 loading sleeve 14. Locking movable parts 17 on the surface of waste oil tank 3 are engaged with locking fixing parts 18 on the surface of No. 2 loading sleeve 15. A hollow interlayer 19 is provided inside the cylinder wall of No. 1 loading sleeve 14. An electric heating wire 20 is spirally arranged inside the hollow interlayer 19. The electric heating wire 20 is electrically connected to the controller 13.

[0037] The No. 1 oil pump 4, No. 2 oil pump 5, controller 13 and electric heating wire 20 mentioned above are all existing technology products, and their specific structures and functions will not be described in detail here.

[0038] Working principle of this utility model:

[0039] Refer to the instruction manual appendix Figure 1-5 When using this utility model, firstly, new lubricating oil is injected into the oil storage tank 2 through the oil injection port 6. When it is necessary to replace the lubricating oil in the cam divider body 1, the operator can control the relevant components to operate through the controller 13.

[0040] Specifically, first start the No. 2 oil pump 5 and open the control valve on the relevant pipeline. Then, extract the old lubricating oil inside the cam divider body 1 through the No. 2 oil extraction pipe 11 and discharge it into the waste oil tank 3 through the No. 2 pump oil pipe 12 for subsequent centralized treatment.

[0041] After the old lubricating oil is drained, keep oil pump 5 running. Then, start oil pump 4 and open the control valves on the relevant pipelines. Draw new lubricating oil from oil storage tank 2 through oil extraction pipe 9 and pump it into the cam divider body 1 through pump pipe 10. During the pumping process, the new lubricating oil will flush the bottom surface of the cam divider body 1 from top to bottom, washing away the impurities accumulated at the bottom and ensuring the cleanliness of the inside of the cam divider body 1. The lubricating oil used for flushing will also be pumped into waste oil tank 3 by oil pump 5 for subsequent centralized treatment.

[0042] After the rinsing is completed, first close the control valves of oil pump 5 and its related pipelines, and keep oil pump 4 open. New lubricating oil can continue to be injected into the cam divider body 1 to ensure that its interior is full of new lubricating oil. Then close the control valves of oil pump 4 and its related pipelines.

[0043] During the entire lubricating oil replacement process, since the discharge of old lubricating oil and the pumping in of new lubricating oil are handled by two separate pipelines that do not interfere with each other, cross-contamination of impurities can be effectively avoided.

[0044] In addition, both the oil storage tank 2 and the waste oil tank 3 are fastened to the first loading sleeve 14 and the second loading sleeve 15 by the locking movable part 17 and the locking fixed part 18, which facilitates disassembly and replacement. At the same time, an electric heating wire 20 is spirally arranged in the hollow interlayer 19 inside the first loading sleeve 14. The electric heating wire 20 is electrically connected to the controller 13. The controller 13 can control the electric heating wire 20 to be energized and heated, thereby heating the lubricating oil in the oil storage tank 2 to improve its fluidity and facilitate pumping.

Claims

1. A cam divider for easy lubrication oil replacement, comprising a cam divider body (1), an oil reservoir (2), a waste oil reservoir (3), a first oil pump (4), and a second oil pump (5), characterized in that: The oil storage tank (2), waste oil tank (3), No. 1 oil pump (4), and No. 2 oil pump (5) are all located on the back of the cam divider body (1). The No. 1 oil pump (4) and No. 2 oil pump (5) are located between the oil storage tank (2) and the waste oil tank (3). The No. 1 oil pump (4) is located directly above the No. 2 oil pump (5). The top of the oil storage tank (2) is fixedly connected to an oil injection port (6), and the bottom of the oil storage tank (2) is fixedly connected to an oil outlet port (7). The top of the waste oil tank (3) is fixedly connected to an inlet and outlet port (8). The input end of the No. 1 oil pump (4) is equipped with a No. 1 oil extraction pipe. 9) The input end of the first oil extraction pipe (9) is connected to the oil outlet (7). The output end of the first oil pump (4) is equipped with a first pump oil pipe (10). The output end of the first pump oil pipe (10) extends into the body of the cam divider (1). The input end of the second oil pump (5) is equipped with a second oil extraction pipe (11). The input end of the second oil extraction pipe (11) extends into the body of the cam divider (1). The output end of the second oil pump (5) is equipped with a second pump oil pipe (12). The output end of the second pump oil pipe (12) is connected to the inlet and outlet oil ports (8).

2. The cam divider for easy lubrication oil replacement according to claim 1, characterized in that: The output end of the No. 1 pump oil pipe (10) is attached to the inner top surface of the cam divider body (1), and the input end of the No. 2 oil pipe (11) is attached to the inner bottom surface of the cam divider body (1).

3. A cam divider for easy lubrication oil replacement according to claim 1, characterized in that: The cam divider body (1) has a controller (13) installed on the back, and the No. 1 oil pump (4) and the No. 2 oil pump (5) are both electrically connected to the controller (13).

4. A cam divider for easy lubrication oil replacement according to claim 1, characterized in that: Control valves are installed in the middle of the No. 1 oil extraction pipe (9), the No. 1 pump oil pipe (10), the No. 2 oil extraction pipe (11), and the No. 2 pump oil pipe (12).

5. A cam divider for easy lubrication oil replacement according to claim 3, characterized in that: The cam divider body (1) has a first loading sleeve (14) and a second loading sleeve (15) installed on its back. The oil storage tank (2) is movably inserted into the first loading sleeve (14), and the waste oil tank (3) is movably inserted into the second loading sleeve (15).

6. A cam divider for easy lubrication oil replacement according to claim 5, characterized in that: The first loading sleeve (14) has a through hole (16) at the bottom, which matches the oil outlet (7). The bottom end of the oil outlet (7) passes through the through hole (16) and extends to the bottom of the first loading sleeve (14).

7. A cam divider for easy lubrication oil replacement according to claim 5, characterized in that: Both the oil storage tank (2) and the waste oil tank (3) are equipped with locking movable parts (17), and both the first loading sleeve (14) and the second loading sleeve (15) are equipped with locking fixing parts (18). The locking movable parts (17) on the surface of the oil storage tank (2) are engaged with the locking fixing parts (18) on the surface of the first loading sleeve (14), and the locking movable parts (17) on the surface of the waste oil tank (3) are engaged with the locking fixing parts (18) on the surface of the second loading sleeve (15).

8. A cam divider for easy lubrication oil replacement according to claim 5, characterized in that: The first loading sleeve (14) has a hollow interlayer (19) inside its cylinder wall. An electric heating wire (20) is spirally arranged inside the hollow interlayer (19). The electric heating wire (20) is electrically connected to the controller (13).

Citation Information

Patent Citations

  • High and low speed cam divider

    CN222011609U