An eccentric power transmission rod and eccentric power mechanism that adaptively compensate for cutting forces

Abstract

The utility model belongs to eccentric power transmission technical field, especially relates to a kind of eccentric power transmission rod and eccentric power mechanism of self-adapting compensation cutting force. Including: swing bar;Compensation block, the compensation block is locked and is connected between the swing bar;Fixed block, the fixed block is hingedly connected between the swing bar;Spring pin, the spring pin is movably inserted in the compensation block, and is locked on the fixed block, and the compensation block can be pushed along the spring pin to move axially by the spring pin. The lower end of the swing bar is provided with a waist-shaped groove, for being movably inserted with eccentric pin on eccentric disc. The utility model can overcome suddenly increased cutting resistance, so as to maintain the stability and continuity of cutting process, completely solve the problem of whole machine bouncing dance caused by cutting resistance change.

Description

Technical Field

[0001] This utility model belongs to the field of eccentric power transmission technology, and specifically relates to an eccentric power transmission rod and eccentric power mechanism that adaptively compensate for cutting force. Background Technology

[0002] Existing automatic swing-arm rail cutting machines, through the cooperation of a planetary gear reducer, an eccentric power mechanism, and a swing-arm fixing frame, can achieve fully automatic swing sawing of rails, replacing the current method of manual rail cutting by operators and reducing labor intensity. For example, an automatic swing-arm reversible lithium-ion rail cutting machine with publication number CN120421593A discloses the following technical solution: an eccentric power mechanism, which transmits power to the eccentric power mechanism after reduction through the planetary gear reducer; the eccentric power mechanism includes: an eccentric disc, a waist-shaped groove plate, and a connecting sleeve; the output end of the planetary gear reducer is equipped with the eccentric disc, and the pin on the eccentric disc is connected to the waist-shaped groove hole at the lower end of the waist-shaped groove plate; the upper end of the waist-shaped groove plate is connected to the connecting sleeve, driving the waist-shaped groove plate and the lithium-ion rail cutting machine body on it to reciprocate around the connecting sleeve as the rotation center, thereby realizing the automatic swing sawing function of the lithium-ion rail cutting machine body. However, in the above solution, since the connecting sleeve and the waist-shaped groove plate are fixed rigidly connected, the cutting resistance will change drastically when the cutting depth of the rail cutting machine is too large. The rigid connection will directly transmit the sudden change in resistance during cutting to the entire machine body, which can easily cause resonance and impact, causing the rail cutting machine to bounce and become unable to continue to sink for automatic sawing.

[0003] Therefore, it is necessary to propose an eccentric power transmission rod and eccentric power mechanism that adaptively compensate for cutting forces to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide an eccentric power transmission rod and eccentric power mechanism that adaptively compensate for cutting force. This invention can overcome the sudden increase in cutting resistance, thereby maintaining the smoothness and continuity of the cutting process and completely solving the problem of machine bouncing caused by changes in cutting resistance.

[0005] To solve the above-mentioned technical problems, this utility model provides an eccentric power transmission rod that adaptively compensates for cutting forces, comprising:

[0006] Swing rod;

[0007] A compensation block is locked to the swing rod.

[0008] A fixed block is hingedly connected to the swing rod.

[0009] A spring pin is movably inserted into the compensation block and locked onto the fixed block. The compensation block can be pushed to move axially along the spring pin.

[0010] Preferably, the lower end of the swing rod is provided with a waist-shaped groove for movably connecting with the eccentric pin on the eccentric plate.

[0011] Preferably, the compensation block is locked to the upper end of the swing rod by two locking pins distributed vertically.

[0012] Preferably, the fixed block is hinged to the upper end of the swing rod via a hinge pin.

[0013] Preferably, the spring pin includes: a plug pin and a damping spring; the end of the plug pin is locked onto the fixing block, and two damping springs are sleeved on the plug pin, with one end of each of the two damping springs abutting against the compensation block, and the other end abutting against the limiting part of the plug pin and the guide slot of the fixing block, respectively.

[0014] Preferably, the fixing block further includes an L-shaped groove for providing displacement space for the compensation block.

[0015] Preferably, the fixing block is locked to the connecting sleeve by a fastening pin.

[0016] This utility model also provides an eccentric power mechanism, including an eccentric power transmission rod, an eccentric disk, and an eccentric pin as described above; the eccentric disk is sleeved on the output end of a motor-driven gearbox, and the eccentric pin is provided at the eccentric part of the eccentric disk, through which the swing rod is driven to reciprocate.

[0017] Compared with the prior art, this utility model has the following advantages:

[0018] This invention, through its designed swing rod, compensation block, fixing block, and spring pin structure, creates a dynamic increase in the downward cutting force on the cutting machine by applying a reaction force to the compensation block and swing rod due to the deformation of the damping spring after it is compressed. This overcomes the sudden increase in cutting resistance, thereby maintaining the smoothness and continuity of the cutting process and completely solving the problem of machine bouncing caused by changes in cutting resistance. Attached Figure Description

[0019] Figure 1 This is a structural diagram of an eccentric power transmission rod that provides adaptive compensation for cutting force, as provided by this utility model.

[0020] Figure 2 This is a structural diagram of the compensation block, spring pin, and fixing block provided by this utility model.

[0021] Figure 3 This is a structural cross-sectional view of the compensation block, spring pin, and fixing block provided by this utility model.

[0022] Figure 4 This is a structural diagram of an eccentric power mechanism provided by this utility model.

[0023] In the diagram: 1-Swing rod, 11-Waist-shaped groove, 12-Hinge pin, 2-Compensation block, 21-Locking pin, 3-Fixing block, 31-L-shaped groove cavity, 32-Fastening pin, 4-Spring pin, 41-Plug pin, 42-Damping spring, 5-Connecting sleeve, 6-Eccentric disc, 7-Eccentric pin, 8-Reduction gearbox. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0025] like Figures 1-4 As shown, this utility model embodiment specifically provides an eccentric power transmission rod that adaptively compensates for cutting forces, including:

[0026] Swing rod 1;

[0027] Compensation block 2 is locked to the swing rod 1.

[0028] Fixed block 3 is hinged to swing rod 1;

[0029] Spring pin 4 is movably inserted into compensation block 2 and locked onto fixed block 3. Spring pin 4 allows compensation block 2 to move axially along the compensation block 2. When cutting resistance changes, the entire machine body of the cutting machine does not rigidly resist the change. Instead, the elastic deformation of spring pin 4 adaptively compensates for the cutting force applied to the rail, preventing a sudden increase in cutting resistance from being directly transmitted to the machine body, thus preventing the machine from bouncing or wobbling. This achieves the function of adaptively compensating for the magnitude of the cutting force when the eccentric power mechanism drives the eccentric power transmission rod to perform reciprocating oscillating sawing motions.

[0030] The lower end of the swing rod 1 is provided with a waist-shaped groove 11 for movably connecting with the eccentric pin 7 on the eccentric plate 6.

[0031] The compensation block 2 and the upper end of the swing rod 1 are locked together by two locking pins 21 distributed vertically.

[0032] The fixed block 3 is hinged to the upper end of the swing rod 1 by a hinge pin 12.

[0033] The spring pin 4 includes: a plug pin 41 and a damping spring 42; the end of the plug pin 41 is locked onto the fixing block 3, and two damping springs 42 are sleeved on the plug pin 41. One end of the two damping springs 42 abuts against the compensation block 2, and the other end abuts against the limiting part of the plug pin 41 and the guide slot of the fixing block 3, respectively.

[0034] The fixed block 3 also includes an L-shaped groove 31, which provides displacement space for the compensation block 2.

[0035] The fixing block 3 is locked to the connecting sleeve 5 by the fastening pin 32.

[0036] As a further explanation of the embodiments of this utility model, when the cutting resistance increases instantaneously, this cutting resistance is fed back to the swing rod 1, attempting to push the entire swing rod 1 and its compensation block 2 to rotate or move relative to the fixed block 3. Since the swing rod 1 and the fixed block 3 are connected by a hinge, and the compensation block 2 and the fixed block 3 are connected by a spring pin 4, the cutting resistance will compress the damping spring 42 on the spring pin 4, allowing the compensation block 2 to produce a certain displacement along the axial direction of the spring pin 4. The compression process of the damping spring 42 absorbs the impact energy, preventing the impact force from being directly transmitted to the machine body of the cutting machine. After the damping spring 42 is compressed, the deformation will generate a reaction force applied to the compensation block 2 and the swing rod 1, dynamically increasing the downward cutting force on the cutting machine to overcome the sudden increase in cutting resistance, thereby maintaining the smoothness and continuity of the cutting process and completely solving the problem of the whole machine bouncing and shaking caused by changes in cutting resistance.

[0037] This utility model also provides an eccentric power mechanism, including an eccentric power transmission rod with adaptive compensation for cutting force as described above, an eccentric disk 6 and an eccentric pin 7; the eccentric disk 6 is sleeved on the output end of the motor-driven reduction gearbox 8, and the eccentric part of the eccentric disk 6 is provided with an eccentric pin 7, which drives the swing rod 1 to reciprocate.

[0038] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. An eccentric power transmission rod that adaptively compensates for cutting forces, characterized in that, include: Swing rod (1); Compensation block (2), which is locked to the swing rod (1); A fixed block (3) is hinged to the swing rod (1); A spring pin (4) is movably inserted into the compensation block (2) and locked onto the fixed block (3). The compensation block (2) can be pushed to move axially along the spring pin (4) by the spring pin (4).

2. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The lower end of the swing rod (1) is provided with a waist-shaped groove (11) for movably connecting with the eccentric pin (7) on the eccentric plate (6).

3. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The compensation block (2) and the upper end of the swing rod (1) are locked together by two locking pins (21) distributed vertically.

4. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The fixed block (3) and the upper end of the swing rod (1) are hinged together by a hinge pin (12).

5. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The spring pin (4) includes: a plug pin (41) and a damping spring (42); the end of the plug pin (41) is locked onto the fixing block (3), and two damping springs (42) are sleeved on the plug pin (41), with one end of each damping spring (42) abutting against the compensation block (2) and the other end abutting against the limiting part of the plug pin (41) and the guide slot of the fixing block (3).

6. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The fixing block (3) also includes an L-shaped groove (31) for providing displacement space for the compensation block (2).

7. The eccentric power transmission rod for adaptive compensation of cutting force as described in claim 1, characterized in that, The fixing block (3) is locked to the connecting sleeve (5) by a fastening pin (32).

8. An eccentric power mechanism, characterized in that, It includes an eccentric power transmission rod, an eccentric disk (6), and an eccentric pin (7) as described in any one of claims 1 to 7; the eccentric disk (6) is sleeved on the output end of a motor-driven gearbox (8), and the eccentric pin (7) is provided at the eccentric part of the eccentric disk (6), and the swing rod (1) is driven to swing back and forth through the eccentric pin (7).

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