Automatic lubricating device for gang saw
By using an automatic lubrication device in the guide assembly and lubrication supply system, the problems of complex electrical control systems and unstable manual oiling in the existing technology are solved, realizing efficient lubrication and stable operation of the gang saw equipment, and improving sawing accuracy and equipment intelligence level.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
The existing lubrication methods for steel sawing equipment rely on complex electronic control systems, which increases costs and the risk of failure. Manual lubrication is unstable, leading to unstable equipment operation and high maintenance costs.
Design an automatic lubrication device for gang saws, including a guide assembly, a lubrication supply system, and a triggering mechanism. The automatic lubrication of the guide sleeve is achieved by using gravity and a self-resetting plunger pump. The triggering mechanism precisely triggers the plunger pump to supply a metered amount of lubricating oil when the saw blade driver rises to the top.
It improves sawing accuracy and equipment stability, reduces wear, lowers maintenance costs, and achieves automated and precise control of lubrication, avoiding the uncertainty of manual intervention.
Smart Images

Figure CN224390643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel production equipment, and in particular to an automatic lubrication device for gang saws. Background Technology
[0002] In the steel production industry, steel sawing equipment is a key component of many production lines, especially when sawing rows of steel pipes or other steel products in batches, where gang saws play an indispensable role. During the operation of gang saws, ensuring proper lubrication of all components is crucial, particularly the guide sleeves, which directly affects the stability and smoothness of the equipment's operation.
[0003] Existing lubrication methods have significant drawbacks. Traditional lubrication equipment mostly relies on electronic control systems to control the lubricating oil pump, which complicates the equipment structure, increases procurement costs, and raises the difficulty and expense of subsequent maintenance. Furthermore, electronic control systems are susceptible to interference from various factors, increasing the risk of equipment failure. Another common method is manual lubrication, which requires a significant investment of time and effort from operators. The frequency and quality of manual lubrication are difficult to maintain consistently, and untimely or uneven lubrication can lead to insufficient lubrication of the guide sleeve, resulting in jamming, affecting normal equipment operation, reducing production efficiency, and increasing maintenance costs. Therefore, developing a simple, reliable device that requires no complex electronic control system and enables automatic lubrication is urgently needed. Utility Model Content
[0004] The purpose of this invention is to provide an automatic lubrication device for gang saws to solve the problems existing in the prior art. It has a simple structure and is easy to use. It can achieve automatic lubrication of the guide sleeve of the gang saw without introducing a complex electrical control system, thereby effectively improving the stability of the gang saw equipment operation.
[0005] To achieve the above objectives, this utility model provides the following solution:
[0006] This utility model provides an automatic lubrication device for gang saws, comprising: a guide assembly, a lubrication supply system, and a triggering mechanism. The guide assembly includes a pair of guide columns and a guide sleeve fitted thereon, the outer side of which is fixedly connected to a saw blade driver. The lubrication supply system includes an oil reservoir, a plunger pump, and two lubrication oil pipes. The oil reservoir is installed on top of the saw blade driver to store lubricating oil. The plunger pump is installed on top of the oil reservoir, and its inlet is connected to the oil reservoir. Its outlet is connected to the lubrication oil pipes to deliver a fixed amount of lubricating oil to the guide sleeve. The triggering mechanism is installed on the guide columns so that when the saw blade driver rises to a set top position, the triggering mechanism contacts the plunger pump, pressurizes it, and causes the plunger pump to supply a fixed amount of hydraulic oil to the guide sleeve.
[0007] Preferably, the plunger pump is a self-resetting plunger pump that automatically resets when the saw blade driver descends.
[0008] Preferably, the lubricating oil pipe is an oil-resistant flexible hose, with its two ends sealed and connected to the upper end of the guide sleeve and the oil outlet of the plunger pump, respectively.
[0009] Preferably, the triggering mechanism is a pressure plate, which is horizontally arranged and vertically fixedly connected to the guide column so as to contact the plunger pump and apply pressure when the saw blade driver rises to the top preset position.
[0010] Preferably, the pressure plate is a 15mm thick steel plate and is fixed to a preset position on the upper part of the guide column by bolts.
[0011] Preferably, the oil reservoir is a transparent oil cup structure with a removable oil filling cap on top.
[0012] Preferably, the oil inlet of the plunger pump is provided with a first check valve that opens toward the plunger pump, and the oil outlet of the plunger pump is provided with a second check valve that opens toward the lubricating oil pipe.
[0013] The present invention achieves the following technical advantages over the prior art:
[0014] This invention provides an automatic lubrication device for gang saws. The guide post and guide sleeve in the guide assembly precisely guide the saw blade driver, ensuring it moves smoothly up and down along a predetermined trajectory. This maintains a stable position and posture of the saw blade during cutting, improving sawing accuracy and quality, reducing wear caused by saw blade vibration, and extending saw blade life. An oil reservoir is installed on top of the saw blade driver, utilizing gravity to assist in lubricant delivery, ensuring smooth oil supply. A plunger pump precisely controls the output of lubricant, delivering a fixed amount to the guide sleeve according to actual needs. This ensures sufficient and appropriate lubrication of the mating surfaces between the guide sleeve and the saw blade driver, effectively reducing friction between components, minimizing wear, and improving the stability and reliability of equipment operation. It also avoids waste and environmental pollution caused by excessive lubricant. Two lubrication pipes allow for lubrication of the guide sleeve from different directions, resulting in more uniform lubrication and further enhancing the lubrication effect. By setting a trigger mechanism on the guide column, the plunger pump is precisely triggered when the saw blade driver rises to the top set position, and lubricating oil is replenished to the guide sleeve in a timely manner. This realizes the automation and precise control of the lubrication process, ensuring timely and effective lubrication at key nodes where the saw blade driver needs lubrication. It avoids the uncertainty and inconvenience caused by manual intervention and improves the intelligent operation level of the equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A schematic diagram of the automatic lubrication device for gang saws provided by this utility model;
[0017] In the diagram: 1. Guide post; 2. Guide sleeve; 3. Lubrication pipe; 4. Saw blade driver; 5. Oil reservoir; 6. Piston pump; 7. Pressure plate; 9. Saw blade; 10. Steel. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] The purpose of this invention is to provide an automatic lubrication device for gang saws to solve the problems existing in the prior art. It has a simple structure and is easy to use. It can achieve automatic lubrication of the guide sleeve of the gang saw without introducing a complex electrical control system, thereby effectively improving the stability of the gang saw equipment operation.
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] This utility model provides an automatic lubrication device for gang saws, such as... Figure 1 As shown, the system includes: a guide assembly, a lubrication supply system, and a triggering mechanism. The guide assembly includes a pair of guide posts 1 and a guide sleeve 2 fitted thereon. The outer side of the guide sleeve 2 is fixedly connected to the saw blade driver 4. The lubrication supply system includes an oil reservoir 5, a plunger pump 6, and two lubrication oil pipes 3. The oil reservoir 5 is installed on the top of the saw blade driver 4 to store lubricating oil. The plunger pump 6 is installed on the top of the oil reservoir, and the oil inlet of the plunger pump 6 is connected to the oil reservoir 5. The oil outlet of the plunger pump 6 is connected to the lubrication oil pipes 3 to deliver a fixed amount of lubricating oil to the guide sleeve 2. The triggering mechanism is installed on the guide posts 1 so that when the saw blade driver 4 rises to the top set position, the triggering mechanism contacts the plunger pump 6 to pressurize it and cause the plunger pump 6 to supply a fixed amount of hydraulic oil to the guide sleeve 2.
[0022] The guide post 1 and guide sleeve 2 in the guide assembly provide precise guidance for the saw blade driver 4, ensuring that the saw blade driver 4 moves smoothly up and down along a predetermined trajectory. This allows the saw blade 9 to maintain a stable position and posture during cutting, improving sawing accuracy and quality, reducing wear caused by saw blade 9 shaking, and extending the service life of the saw blade 9. An oil reservoir 5 is installed on top of the saw blade driver 4, using gravity to assist in the delivery of lubricating oil, ensuring a smooth supply. The plunger pump 6 precisely controls the output of lubricating oil, delivering a fixed amount of lubricating oil to the guide sleeve 2 according to actual needs. This ensures sufficient and appropriate lubrication of the mating surfaces between the guide sleeve 2 and the saw blade driver 4, effectively reducing friction between components, minimizing wear, improving the stability and reliability of equipment operation, and avoiding waste and environmental pollution caused by excessive lubricating oil. Two lubrication pipes 3 allow for lubrication of the guide sleeve 2 from different directions, making lubrication more uniform and further improving the lubrication effect. By setting a triggering mechanism on the guide column 1, the plunger pump 6 is precisely triggered when the saw blade driver 4 rises to the top set position, and lubricating oil is replenished to the guide sleeve 2 in a timely manner. This realizes the automation and precise control of the lubrication process, ensuring timely and effective lubrication at the key nodes where the saw blade driver 4 needs lubrication. It avoids the uncertainty and inconvenience of operation caused by manual intervention and improves the intelligent operation level of the equipment.
[0023] In a preferred embodiment, the plunger pump 6 is a self-resetting plunger pump 6, which automatically resets when the saw blade driver 4 descends. The self-resetting plunger pump 6 automatically resets when the saw blade driver 4 descends, so that after each working cycle of rising and falling of the saw blade driver 4, the plunger pump 6 can return to the initial state, ready for the next supply of lubricating oil. No additional power source or manual operation is required to reset it, which simplifies the system's workflow, reduces the equipment's maintenance costs, and ensures that the device can continuously and stably complete the lubrication working cycle.
[0024] In a preferred embodiment, the lubricating oil pipe 3 is an oil-resistant flexible hose, with its two ends sealed to the upper end of the guide sleeve 2 and the oil outlet of the plunger pump 6, respectively. The use of an oil-resistant flexible hose has two advantages: firstly, its oil resistance can resist the corrosion of lubricating oil, ensure the service life of the hose, reduce lubricating oil leakage caused by hose aging and damage, and reduce maintenance costs; secondly, the flexible hose can adapt to the vibration and slight displacement of the saw blade driver 4 during operation, avoid fatigue fracture or loosening of the connection due to rigid connection, ensure that the lubricating oil delivery channel is always well sealed, and ensure the stable and reliable operation of the lubrication supply system.
[0025] In a preferred embodiment, the triggering mechanism is a pressure plate 7. The pressure plate 7 is horizontally positioned and vertically fixed to the guide column 1 so that it contacts the plunger pump 6 to apply pressure when the saw blade driver 4 rises to the top preset position. The pressure plate 7, as a triggering mechanism, has a simple, stable, and reliable structure. Its horizontal positioning and vertical fixed connection to the guide column 1 facilitate accurate installation and positioning, and can precisely control the contact and pressure application with the plunger pump 6 when the saw blade driver 4 rises to the top preset position, ensuring the accuracy and consistency of the triggering action. This, in turn, guarantees the timeliness and stability of each lubrication supply, improving the stability and reliability of equipment operation.
[0026] In a preferred embodiment, the pressure plate 7 is a 15mm thick steel plate, which is bolted to a preset position on the upper part of the guide column 1. The use of a 15mm thick steel plate as the pressure plate 7 ensures sufficient strength and rigidity, preventing deformation during pressurization with the plunger pump 6 and reliably transmitting pressure to trigger the plunger pump 6. Bolting it to the preset position on the upper part of the guide column 1 facilitates installation, disassembly, and position adjustment. The position of the pressure plate 7 can be fine-tuned according to actual conditions to ensure optimal contact and pressurization with the plunger pump 6, thus optimizing the performance of the triggering mechanism.
[0027] In a preferred embodiment, the oil reservoir 5 is a transparent oil cup structure with a removable oil filling cap on top. The transparent structure allows the operator to directly observe the lubricating oil level within the reservoir 5, facilitating timely monitoring of lubricating oil consumption and enabling prompt replenishment to prevent poor lubrication due to insufficient lubricating oil. The removable oil filling cap on top provides convenience for oil filling operations, ensuring easy and quick replenishment when needed, thus improving equipment maintenance convenience.
[0028] In a preferred embodiment, the inlet of the plunger pump 6 is equipped with a first check valve that opens toward the plunger pump 6, and the outlet of the plunger pump 6 is equipped with a second check valve that opens toward the lubricating oil pipe 3. The first check valve, opening toward the plunger pump 6, prevents lubricating oil from flowing back into the oil reservoir 5 when the plunger pump 6 stops working or reverses its movement, ensuring stable pressure within the oil reservoir 5 and preventing disordered flow of lubricating oil within the system, thus helping to maintain the normal supply order of lubricating oil. The second check valve, opening toward the lubricating oil pipe 3, prevents lubricating oil from flowing back into the plunger pump 6 when system pressure fluctuates, ensuring that lubricating oil can be smoothly delivered to the guide sleeve 2 through the lubricating oil pipe 3 only when the plunger pump 6 is working normally and applying pressure, effectively improving the stability and reliability of the lubrication supply system and ensuring the normal operation of the device.
[0029] The specific operating method of this automatic lubrication device for gang saws is as follows:
[0030] Device startup preparation
[0031] Observe the lubricating oil level in the oil reservoir 5, which has a transparent oil cup structure. Because the oil reservoir 5 is transparent and visible, the operator can directly see the liquid level. Based on the observation, if the liquid level is low, add enough lubricating oil to the oil reservoir 5 through the removable oil filling cap on the top to ensure a sufficient supply of lubricating oil during the subsequent operation of the device.
[0032] Saw blade driver 4 working process
[0033] Ascending Phase: The gang saw is started, and the saw blade driver 4 rises smoothly along the guide post 1 under the action of the guide assembly. The cooperation between the guide post 1 and the guide sleeve 2 ensures that the saw blade driver 4 moves along a predetermined trajectory. When the saw blade driver 4 rises to the top set position (which can be determined by a sensor or a preset mechanical position), the triggering mechanism (pressure plate 7) mounted on the guide post 1 contacts the plunger pump 6 and applies pressure. The pressure plate 7 is horizontally set and vertically fixed to the guide post 1, precisely controlling the contact position and force, triggering the plunger pump 6 to work. After the plunger pump 6 starts, it precisely controls the amount of lubricating oil in the oil reservoir 5 to be delivered to the guide sleeve 2 through the connection structure between the oil outlet and the lubricating oil pipe 3, lubricating the mating surfaces between the guide sleeve 2 and the saw blade driver 4, reducing friction between components, reducing wear, ensuring the saw blade driver 4 continues to work smoothly, and improving sawing accuracy and quality. During this process, a second check valve is installed at the oil outlet of the plunger pump 6 and opens towards the lubricating oil pipe 3 to prevent hydraulic oil from flowing back to the plunger pump 6 and to ensure that the lubricating oil can only flow smoothly to the guide sleeve 2 in one direction. At the same time, the lubricating oil pipe 3 is an oil-resistant flexible hose that can adapt to the vibration and slight displacement of the saw blade driver 4 during operation, ensuring good sealing and stability of the lubricating oil delivery channel.
[0034] Descent Phase: After completing its top work, the saw blade driver 4 begins its descent. During this process, the saw blade 9 cuts the steel 10 in a suitable position and orientation. Simultaneously, the self-resetting plunger pump 6 automatically resets during the descent of the saw blade driver 4, preparing for the next lubrication oil supply. This self-resetting feature ensures that the plunger pump 6 returns to its initial state after each work cycle of the saw blade driver 4, eliminating the need for additional power or manual reset, simplifying the system workflow and reducing equipment maintenance costs. Throughout the entire operation, a first check valve located at the plunger pump 6 inlet and opening towards the plunger pump 6 prevents lubricating oil from flowing back into the oil reservoir 5 when the plunger pump 6 stops working or reverses its movement, maintaining the normal supply order of lubricating oil within the system and ensuring stable pressure in the oil reservoir 5.
[0035] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An automatic lubrication device for gang saws, characterized in that: include: A guide assembly, comprising a pair of guide posts and a guide sleeve fitted thereon, the outer side of which is fixedly connected to a saw blade driver; A lubrication supply system includes an oil reservoir, a plunger pump, and two lubrication oil pipes. The oil reservoir is installed on top of the saw blade driver to store lubricating oil. The plunger pump is installed on top of the oil reservoir, and the oil inlet of the plunger pump is connected to the oil reservoir. The oil outlet of the plunger pump is connected to the lubrication oil pipes to deliver a fixed amount of lubricating oil to the guide sleeve. A triggering mechanism, mounted on the guide column, is provided so that when the saw blade driver rises to a top set position, the triggering mechanism contacts the plunger pump to pressurize it and cause the plunger pump to supply a fixed amount of hydraulic oil to the guide sleeve.
2. The automatic lubrication device for gang saws according to claim 1, characterized in that: The plunger pump is a self-resetting plunger pump, which automatically resets when the saw blade driver descends.
3. The automatic lubrication device for gang saws according to claim 2, characterized in that: The lubricating oil pipe is an oil-resistant flexible hose, and its two ends are respectively sealed and connected to the upper end of the guide sleeve and the oil outlet of the plunger pump.
4. The automatic lubrication device for gang saws according to claim 3, characterized in that: The triggering mechanism is a pressure plate, which is horizontally arranged and vertically fixedly connected to the guide column so that it contacts the plunger pump to apply pressure when the saw blade driver rises to the top preset position.
5. The automatic lubrication device for gang saws according to claim 4, characterized in that: The pressure plate is a 15mm thick steel plate and is fixed to a preset position on the upper part of the guide column by bolts.
6. The automatic lubrication device for gang saws according to claim 5, characterized in that: The oil reservoir (5) is a transparent oil cup structure with a removable oil filling cap on top.
7. The automatic lubrication device for gang saws according to claim 6, characterized in that: The plunger pump has a first check valve at its inlet that opens toward the plunger pump, and a second check valve at its outlet that opens toward the lubricating oil pipe.