The Pin Type Torque Limiter is a high-rigidity, purely mechanical overload protection component—currently one of the most versatile limiting and safety devices utilized in industrial power transmission systems. Leveraging a structural design that combines disc springs with interlocking pins, it achieves power transmission with zero backlash. Unlike conventional ball- or roller-type products, this design offers superior overall transmission rigidity and exceptional resistance to impact loads. Should the equipment encounter overload conditions—such as jamming or sudden load surges—the internal pins automatically disengage to relieve pressure, instantly interrupting power transmission and thereby preventing critical equipment failures, such as transmission shaft fractures or gear damage.
1.High overall cost performance. Core components of Pin Type Torque Limiter feature excellent durability with low replacement frequency, cutting spare parts procurement expenses.
2.Simple structure allows easy disassembly and maintenance. No sophisticated professional equipment is required, lowering labor costs for upkeep.
3.Effectively prevent shaft breakage, gear fracture and equipment damage, greatly reducing maintenance costs and production downtime losses.
4.Complete specification range for customized model matching, avoiding unnecessary cost caused by excessive performance redundancy.
The thimbles are pressed into the positioning grooves of the driven disc by disc springs. The driving and driven discs fit tightly to transmit torque steadily with zero backlash.
Sudden load surge or stall makes actual torque exceed preset limit. Thimbles are pushed up against spring pressure, separating the two discs instantly and cutting off power transmission.
After troubleshooting, align the clamping position by rotating the flange while equipment stops running. Press to reset and resume power transmission.
The meshing structure delivers high transmission rigidity. No backlash or vibration arises during start-up, stopping and speed shifting, achieving steady and uniform power output. Pin Type Torque Limiter functions reliably in forward and reverse rotation without transmission failure when switching directions, and supports constant-speed, intermittent and impact operating modes.
Fitted with calibrated adjusting structure. Rotate the nut to linearly adjust disc spring preload, with distinct torque levels visible. Easy commissioning requires no sophisticated tools, enabling rapid on-site setting of protection limits to suit diverse load protection requirements.
The fully sealed structure blocks dust, moisture and oil from entering internal components. Made of metal materials, Pin Type Torque Limiter resists extreme temperatures and mechanical vibration, ensuring stable and long-lasting operation in harsh environments like mines, chemical plants and outdoor workshops.
1. Q: What is the basic operating principle of the Pin Type Torque Limiter?
A: During normal operation, disc springs press the pins firmly into the positioning grooves of the driven plate; the driving plate and driven plate remain in close contact, ensuring stable, backlash-free torque transmission. When the load surges or the equipment jams—causing the actual torque to exceed the preset limit—the pins overcome the spring pressure and disengage. This causes the driving and driven plates to separate rapidly, thereby cutting off power transmission. Once the fault has been cleared, the unit can be reset to resume normal transmission by stopping the equipment, aligning the flange with the engagement slots, and applying pressure to reset the pins.
2. Q: Does the product exhibit transmission backlash or vibration issues during operation?
A: The Pin Type Torque Limiter features a precision-meshed structure that provides high overall transmission rigidity. It operates without any transmission backlash during equipment startup, shutdown, or speed changes. The unit runs smoothly with no noticeable vibration, delivering uniform and stable power output, thereby ensuring the continuous and reliable operation of the transmission system.
3. Q: Can this product be used effectively in equipment that requires switching between forward and reverse rotation?
A: This Pin Type Torque Limiter supports bidirectional operation (both forward and reverse). It does not experience transmission failure or jamming issues when switching directions. Furthermore, it is compatible with a wide range of operating modes—including constant-speed continuous operation, intermittent duty, and applications involving impact loads—making it suitable for a broad spectrum of working conditions.
4. Q: Can this product be used in harsh environments involving dust, moisture, or oil contamination?
A: The product features a fully sealed structure designed to prevent dust, moisture, and oil contaminants from penetrating and affecting internal components. Constructed entirely from metal materials, the unit is resistant to extreme temperatures and mechanical vibration, allowing it to operate stably over long periods in complex industrial environments such as mines, chemical plants, and outdoor workshops.
5. Q: What routine maintenance is required, and is the overall maintenance process difficult?
A: The product features a simple structure that allows for easy disassembly and assembly. Routine maintenance procedures are straightforward and do not require complex operations or specialized tools. Thanks to its fully sealed protective design, internal components are well-shielded from external contaminants; consequently, under normal operating conditions, maintenance requirements are minimal, resulting in lower overall operational and maintenance costs over the long term.
6. Q: Which types of transmission equipment are best suited for use with this product?
A: By virtue of its high transmission rigidity, shock resistance, and superior sealing and protection capabilities, the Pin Type Torque Limiter is well-suited for various types of transmission equipment operating in mining, chemical, and outdoor environments. It is particularly ideal for machinery requiring frequent directional changes, intermittent operation, or the ability to withstand transient impact loads, as well as for equipment situated in field environments characterized by heavy dust, oil contamination, or high humidity.
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