A safety protection device applied to a gear transmission system and a use method thereof

CN122880883APending Publication Date: 2026-10-09HEBEI BAISHA TOBACCO
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Patent Information

Application Number
CN202611102925.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-23
Publication Date
2026-10-09

AI Technical Summary

Technical Problem

[0002]现有情况中,维修机械设备的齿轮传动系统时,经常出现齿轮挤手现象,原因为不明情况人员盘动机车,或机车出现溜逸、惰行的情况,导致齿轮转动以至伤手

Benefits of technology

(1)安全性提升,物理锁止防止意外转动,本发明采用双红铜棒平行布置的结构(第一红铜棒固定于固定座中心,第二红铜棒固定于滑块中心),两根红铜棒前端同步伸入齿轮啮合间隙,共同配合锁止齿轮。这种双点锁止方式能够有效卡住齿轮,防止齿轮意外转动。本发明通过红铜棒直接卡入齿轮连接处的物理制动方式,能够有效应对齿轮意外转动的情况,弥补了现有技术的不足。

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Abstract

The application relates to a safety protection device applied to a gear transmission system and a use method thereof, and relates to the following: a fixing base; a sliding rail arranged on the fixing base; a sliding block slidingly arranged on the sliding rail; a brake member which is a red copper rod and is used for clamping into the connecting position of two gears in the gear transmission system; the red copper rod comprises two parallel red copper rods which are special-shaped slotted copper rods, and the cross section of the red copper rod is a special-shaped cross section of a three-inner concave crescent groove; the two red copper rods are synchronously inserted into a gear meshing gap at the front ends, and are used for jointly locking the gears; an elastic element is connected between the fixing base and the sliding block, and is used for providing a pulling force of the red copper rod to the tooth direction of the connecting position of the two gears; a magnetic attraction element is arranged on the sliding block, and is used for being adsorbed to the surface of the side surface of the gear, and assists in fixing the red copper rod to be inserted into the connecting position of the two gears. The physical brake mode of directly clamping the red copper rod into the gear connecting position can effectively deal with the situation of accidental rotation of the gear.
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Description

Technical Field

[0001] This invention relates to the field of gear maintenance safety protection technology, specifically a safety protection device applied to a gear transmission system and its usage method. Background Technology

[0002] In current situations, when repairing the gear transmission system of mechanical equipment, the gears frequently cause hand injuries. This is because unsuspecting personnel may operate the machine, or the machine may slip or coast, causing the gears to rotate and injuring the hand. To prevent these problems, warning signs are usually hung at the handwheel position when repairing gear transmission systems, or a designated person is assigned to supervise the handwheel operation. However, this only prevents unauthorized operation of the machine and does not prevent slippage or coasting. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a safety protection device for gear transmission systems, aiming to partially solve the aforementioned technical problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: On one hand, a safety protection device for a gear transmission system is proposed, comprising: Fixed base; The slide rail is mounted on the fixed base; The slider is slidably mounted on the slide rail. Braking component, which is a red copper rod, is used to engage the connection between two gears in a gear transmission system; The copper rods consist of two parallel rods. The first copper rod is fixedly connected to the center of the fixed base, and the second copper rod is fixedly connected to the center of the slider. Both the first and second copper rods are set at 90° to the slide rail. The copper rods are irregularly shaped slotted copper rods with a cross-section of "three concave crescent grooves". The front ends of the two copper rods extend into the gear meshing gap simultaneously to cooperate with the locking gear. An elastic element, connected between the fixed base and the slider, is used to provide a pulling force to the copper rod in the direction of the gear teeth at the connection of the two gears; A magnetic element, located on the slider, is used to adhere to the surface of the gear side, assisting in fixing the copper rod inserted into the connection between the two gears.

[0005] As a preferred technical solution, the elastic element is a tension spring.

[0006] As a preferred technical solution, the tension spring includes two pieces, which are respectively disposed at the upper and lower ends of the slider and the fixed seat.

[0007] As a preferred technical solution, the magnetic attraction element is a permanent magnet.

[0008] As a preferred technical solution, the slider has an open state and a braking state; When pulled apart, the slider overcomes the tension of the elastic element and slides along the slide rail to the first position away from the gear; In the braking state, the slider slides along the slide rail to the second position close to the gear under the pulling force of the elastic element, the braking element is engaged at the connection of the two gears, and the magnetic element is attracted to the surface of the gear side.

[0009] As a preferred technical solution, the fixed base is provided with an installation structure for detachably installing the safety protection device onto the gear transmission system housing, which facilitates the staff to take and store it during maintenance and use. The installation structure is a mounting hole or a mounting buckle provided on the fixed base.

[0010] As a preferred technical solution, the slider and the fixed seat are provided with a concave hole at the center, the concave hole is a threaded hole, and the end of the copper rod away from the gear is provided with a thread, which forms a threaded connection with the threaded hole.

[0011] As a preferred technical solution, the slider is also provided with a hook or a pull ring for pulling the slider away from the fixed seat.

[0012] As a preferred technical solution, the fixed base is provided with slide rail mounting holes and tension spring attachment points, serving as a fixed support base for the entire sliding mechanism.

[0013] On the other hand, a safety protection method for a gear transmission system is also proposed, which adopts the safety protection device described above and includes the following steps: Pull the slider to make it slide along the slide rail to a position away from the fixed seat; Align the brake with the connection point of the two gears; The gear is held in place by the tension of a spring, while a magnet is attracted to the side surface of the gear. After the maintenance work is completed, pull the slider to disengage it from the gear and remove the safety guard.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects: (1) Enhanced safety: Physical locking prevents accidental rotation. This invention employs a structure with two parallel copper rods (the first copper rod is fixed to the center of the mounting base, and the second copper rod is fixed to the center of the slider). The front ends of the two copper rods extend synchronously into the gear meshing gap, working together to lock the gear. This dual-point locking method effectively jams the gear, preventing accidental rotation. This invention, through the physical braking method of the copper rods directly jamming into the gear connection, effectively addresses the situation of accidental gear rotation, overcoming the shortcomings of existing technologies.

[0015] The magnetic element (permanent magnet) on the slider can be attracted to the surface of the gear side when braking, which helps to fix the copper rod inserted into the connection of the two gears, further enhancing the stability of the device when braking and preventing the copper rod from accidentally falling out.

[0016] (2) Ease of operation, elastic automatic braking, simple operation. The elastic element (tension spring) is connected between the fixed base and the slider, providing a pulling force to the copper rod in the direction of the gear teeth at the connection of the two gears. In use, simply pull the slider to slide it along the slide rail to a position away from the fixed base, align the brake with the connection of the two gears, and then release the lever. The tension spring will automatically lock the gears. This design makes the braking operation simple and quick.

[0017] The slider is equipped with a hook or pull ring for pulling the slider away from the fixed seat, which makes it convenient for workers to operate with one hand and improves the ease of use.

[0018] The mounting base is equipped with mounting holes or mounting clips, which allow the safety protection device to be detachably installed on the gear transmission system housing, making it convenient for staff to retrieve and store during maintenance and use.

[0019] (3) Structural reliability and irregular cross-section design enhance braking effect. The copper rod adopts an irregular cross-section with "three concave crescent grooves". This special cross-section shape can better match the gear tooth shape and enhance the locking effect after being engaged in the gear meshing gap.

[0020] The threaded connection ensures a firm and secure connection. The center of the slider and the fixed seat is provided with a threaded hole, and the end of the copper rod away from the gear is provided with a thread, which forms a threaded connection with the threaded hole, ensuring a firm and reliable connection between the copper rod and the fixed seat and slider.

[0021] The symmetrical tension layout ensures stability. Two tension springs are located at the upper and lower ends of the slider and the fixed base, respectively, so that the slider is subjected to balanced force during sliding, moves smoothly, and is not prone to deflection.

[0022] The fixed base serves as a stable base, and is equipped with slide rail mounting holes, copper rod fixing holes, and tension spring hook points. It acts as a fixed support base for the entire sliding mechanism, ensuring the stability of the entire device structure.

[0023] (4) This invention can be applied to maintenance safety protection scenarios of various gear transmission systems, and is not limited to specific models or types of gear equipment, and has good versatility. Attached Figure Description

[0024] Figure 1 A schematic diagram of a safety protection device applied to a gear transmission system provided by the present invention; Figure 2 This invention provides a schematic diagram illustrating the implementation and use of a safety protection device applied to a gear transmission system. Figure 3 This is a schematic diagram of a safety protection method for a gear transmission system provided by the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Fixing base; 2. Slide rail; 3. Slider; 41. First copper rod; 411. Three concave crescent grooves; 42. Second copper rod; 51. First tension spring; 52. Second tension spring; 6. Magnetic element; 7. Gear; 71. First position; 72. Pull ring; 8. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figure 1-2 The present invention provides a safety protection device for a gear transmission system, comprising: Fixed base 1; Slide rail 2 is mounted on fixed base 1; The slider 3 is slidably mounted on the slide rail 2. The slide rail 2 includes two parallel rails, one end of which is fixed to the fixed base 1, and the other end is used for the slider 3 to pass through. The center of the slider 3 has a through hole for the slider 3 to pass through.

[0028] Braking component, which is a red copper rod, is used to engage the connection between two gears 7 in the gear 7 transmission system; The copper rods include two parallel ones. The first copper rod 41 is fixedly connected to the center of the fixed base 1, and the second copper rod 42 is fixedly connected to the center of the slider 3. Both the first copper rod 41 and the second copper rod 42 are set at 90° with the slide rail 2. The copper rods are irregularly shaped slotted copper rods with a cross-section of "three concave crescent grooves 411". The front ends of the two copper rods extend into the meshing gap of the gear 7 at the same time and work together to lock the gear 7. An elastic element, connected between the fixed base 1 and the slider 3, is used to provide a pulling force to the copper rod in the direction of the gear teeth at the connection of the two gears 7; The magnetic element 6 is set on the slider 3 and is used to adhere to the surface of the side of the gear 7 to help fix the copper rod inserted into the connection of the two gears 7.

[0029] Preferably, the elastic element is a tension spring.

[0030] Preferably, the tension spring includes two springs, which are respectively disposed at the upper and lower ends of the slider 3 and the fixed seat 1, including a first tension spring 51 disposed at the upper end and a second tension spring 52 disposed at the lower end.

[0031] Preferably, the magnetic element 6 is a permanent magnet.

[0032] Preferably, the slider 3 has an open state and a braked state; In the pulled-out state, the slider 3 overcomes the tension of the elastic element and slides along the slide rail 2 to the first position 71 away from the gear 7; In the braking state, the slider 3 slides along the slide rail 2 to the second position 72 close to the gear 7 under the pulling force of the elastic element, the braking element is engaged at the connection of the two gears 7, and the magnetic element 6 is attracted to the surface of the side of the gear 7.

[0033] Preferably, the fixed base 1 is provided with an installation structure for detachably installing the safety protection device onto the gear 7 transmission system housing, which is convenient for staff to take and store during maintenance and use. The installation structure is a mounting hole or a mounting buckle provided on the fixed base 1.

[0034] Preferably, not shown in the figure, the center of the slider 3 and the fixing seat 1 may be provided with a recessed hole, which is a threaded hole. The end of the copper rod away from the gear 7 is threaded, forming a threaded connection with the threaded hole. This facilitates the replacement of the copper rod. Those skilled in the art will realize that the direction of the thread should take into account the force exerted on the copper rod by the gear 7, so that after the copper rod is engaged with the gear 7, the threaded connection between the threaded hole and one end of the copper rod is more secure.

[0035] Preferably, the slider 3 is also provided with a hook or pull ring 8 for pulling the slider 3 away from the fixed seat 1.

[0036] Preferably, the fixed base 1 is provided with mounting holes for the slide rail 2 and spring engagement points, serving as a fixed support base for the entire sliding mechanism.

[0037] On the other hand, such as Figure 3 As shown, a safety protection method for a gear 7 transmission system is also proposed, employing the safety protection device described above, including the following steps: Step 1: Pull the slider 3 to slide it along the slide rail 2 to a position away from the fixed base 1; Step 2: Align the braking components (first copper rod 41 and second copper rod 42) with the left and right connection points of the two gears 7 respectively; Step 3: Use the tension of the spring to hold gear 7 in place, while the magnet is attracted to the side surface of gear 7. Step 4: After the maintenance work is completed, pull the slider 3 to disengage it from the gear 7 and remove the safety protection device.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection device applied to a gear transmission system, characterized in that, include: Fixed base; The slide rail is mounted on the fixed base; The slider is slidably mounted on the slide rail; A braking component, which is a copper rod, is used to engage with the connection between two gears in a gear transmission system. The copper rods include two parallel ones, wherein the first copper rod is fixedly connected to the center of the fixed base, and the second copper rod is fixedly connected to the center of the slider; both the first and second copper rods are set at 90° to the slide rail; the copper rods are irregularly shaped slotted copper rods, and the cross-section of the copper rods is an irregular cross-section of "three concave crescent grooves"; the front ends of the two copper rods extend into the gear meshing gap simultaneously to cooperate in locking the gear; An elastic element, connected between the fixed base and the slider, is used to provide a pulling force to the copper rod in the direction of the gear teeth at the connection of the two gears; A magnetic element is provided on the slider to attract the surface of the gear side and help fix the copper rod inserted into the connection of the two gears.

2. The safety protection device for a gear transmission system according to claim 1, characterized in that, The elastic element is a tension spring.

3. The safety protection device applied to a gear transmission system according to claim 2, characterized in that, The tension spring comprises two springs, which are respectively located at the upper and lower ends of the slider and the fixed base.

4. The safety protection device applied to a gear transmission system according to claim 1, characterized in that, The magnetic attraction element is a permanent magnet.

5. The safety protection device applied to a gear transmission system according to claim 1, characterized in that, The slider has an open state and a brake state; In the pulled-out state, the slider overcomes the tension of the elastic element and slides along the slide rail to a first position away from the gear; In the braking state, the slider slides along the slide rail to a second position close to the gear under the pulling force of the elastic element, the braking element is engaged at the connection of the two gears, and the magnetic element is attracted to the surface of the gear side.

6. The safety protection device applied to a gear transmission system according to claim 1, characterized in that, The fixed base is provided with an installation structure for detachably installing the safety protection device onto the gear transmission system housing, which facilitates the staff to take and store it during maintenance and use. The installation structure is a mounting hole or a mounting buckle provided on the fixed base.

7. The safety protection device applied to a gear transmission system according to any one of claims 1-6, characterized in that, The slider and the fixed base have a recessed hole at the center, which is a threaded hole. The end of the copper rod away from the gear has a thread, which forms a threaded connection with the threaded hole.

8. The safety protection device applied to a gear transmission system according to any one of claims 1-6, characterized in that, The slider is also provided with a hook or a pull ring for pulling the slider away from the fixed base.

9. The safety protection device applied to a gear transmission system according to any one of claims 1-6, characterized in that, The fixed base is provided with slide rail mounting holes and tension spring hook points, serving as a fixed support base for the entire sliding mechanism.

10. A safety protection method for a gear transmission system, characterized in that, The safety protection device according to any one of claims 1 to 9 includes the following steps: Pull the slider so that it slides along the slide rail to a position away from the fixed base; Align the brake with the connection point of the two gears; The gear is held in place by the tension of the spring, while the magnet is attracted to the surface of the gear side. After the maintenance work is completed, pull the slider to disengage it from the gear and remove the safety protection device.