Torque testing device special for impact rotary machine tool

Abstract

The utility model provides a special torque testing device for an impact rotary machine tool, which comprises a support, a bottom frame, a torque testing assembly, a cylinder and a rubber pressing block, the cylinder drives the rubber pressing block to move up and down to automatically start and fix the impact rotary machine tool, and the torque testing assembly comprises a steering gear, a coupler, a torque tester and a magnetic powder brake. The device can accurately measure the torque of a machine tool in the working process, simulates the actual working conditions to carry out a brake test, and is provided with a buffer seat at the bottom of the bottom frame, so as to reduce the vibration and impact in the test process. The device has the advantages of being simple in structure, convenient to operate, high in testing precision and the like, can efficiently and accurately test the torque of the impact rotary machine tool, provides powerful technical support for performance evaluation and quality control of the machine tool, and has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the field of torque testing technology, and in particular to a special torque testing device for impact rotary machinery. Background Technology

[0002] In numerous engineering fields such as mining and tunnel excavation, impact rotary tools, such as rock drills, play a crucial role. Their performance directly impacts project progress, construction quality, and equipment lifespan. Torque, as a key parameter for measuring the working capacity of these tools, is of paramount importance for their research and development, optimization, and on-site operational control.

[0003] Traditional torque testing methods are often designed for general rotating equipment and are ill-suited to the complex working conditions of impact-rotation tools, which exhibit both impact and rotational characteristics. The drill pipes of these tools not only rotate at high speeds but also frequently endure impact loads, making it impossible for conventional torque testing devices to accurately capture instantaneously changing torque values. This results in large deviations in test data and low reliability. Furthermore, the harsh operating environment and intense vibrations of these tools make general testing equipment highly susceptible to interference, further affecting test accuracy and failing to meet the urgent needs of practical engineering projects for high-precision torque testing. In addition, most existing testing methods are cumbersome to operate, requiring specialized technicians to spend considerable time on installation and debugging, hindering the rapid and convenient implementation of testing on construction sites and severely restricting the improvement of engineering efficiency and tool performance. Utility Model Content

[0004] This invention addresses the problem that existing torque testing technologies cannot meet the high-precision and convenient testing requirements of impact and rotary machinery under complex working conditions, and provides a dedicated torque testing device for impact and rotary machinery.

[0005] The objective of this utility model is mainly achieved through the following solution:

[0006] A torque testing device for impact rotary machinery includes a bracket, a base frame, a torque testing component, a cylinder, and a rubber pressure block;

[0007] The bracket is located above the base frame. The cylinder is mounted on the bracket. The piston rod of the cylinder passes through the upper end of the bracket and is connected to the rubber pressure block. The rubber pressure block has a slot at the bottom for locking the handle of the rotary tool. The rubber pressure block can move up and down under the drive of the cylinder to trigger the feather switch of the rotary tool and make the rotary tool work.

[0008] The torque testing assembly is mounted on the base frame and includes a steering gear, a first coupling, a torque tester, a second coupling, and a magnetic powder brake. The two ends of the torque tester are connected to the steering gear and the magnetic powder brake respectively through the first coupling and the second coupling. The drill rod of the rotary tool is connected to the steering gear. The steering gear can convert the axial torque of the drill rod into a horizontal radial torque and output it through a horizontal output shaft.

[0009] Preferably, a buffer seat is installed at the bottom of the base frame.

[0010] Preferably, the testing device also includes an air source and a cylinder control valve. The air source is connected to the cylinder control valve through the main air inlet pipe of the cylinder control valve. The cylinder control valve is connected to the air inlet and air outlet of the cylinder through the cylinder air inlet pipe and the cylinder exhaust pipe, respectively.

[0011] Preferably, the testing device also includes a torque tester control panel and a magnetic particle brake control panel, with the torque tester control panel connected to the torque tester via a torque tester signal line, and the magnetic particle brake control panel connected to the magnetic particle brake via a magnetic particle brake control line.

[0012] Therefore, compared with the prior art, the present invention has the following advantages:

[0013] (1) This utility model can be used with impact and rotation tools. By using the steering gear, the complex axial torque of the drill rod is converted into a stable horizontal radial torque output. With the torque tester, it can accurately capture instantaneous torque changes under the dual dynamic working conditions of impact and rotation of the tool, effectively solving the problem of insufficient accuracy of traditional testing methods, and providing reliable data support for tool performance evaluation and optimization.

[0014] (2) The buffer seat at the bottom of the base frame of this utility model can effectively cope with the strong vibration and impact in the harsh working environment, ensuring the stable operation of the entire testing system and free from external interference. Whether in the mine or in the tunnel construction site, it can carry out torque testing work stably and accurately, greatly expanding the scope of application.

[0015] (3) The present invention, through the magnetic powder brake, can not only measure the no-load torque of the machine, but also simulate different load conditions and accurately obtain the maximum torque of the machine during the working process. It provides a comprehensive testing method for the comprehensive study of the torque characteristics of the machine, helps engineers to understand the performance of the machine, and promotes product development and technological innovation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram showing the connection between the rubber pressure block and the handle of the rotary tool in this utility model.

[0018] Diagram Explanation: 1-Bracket; 2-Base frame; 3-Buffer seat; 4-Magnetic powder brake; 5-Second coupling; 6-Torque tester; 7-Steering gear; 8-Drill rod; 9-Rubber pressure block; 10-Cylinder; 11-First coupling; 12-Feather switch; G1-Cylinder control valve main air inlet pipe; G2-Cylinder air inlet pipe; G3-Cylinder exhaust pipe; X1-Magnetic powder brake control line; X2-Torque tester signal line. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of this utility model is not limited to the following embodiments, and any modifications and / or alterations made to this utility model will fall within the protection scope of this utility model.

[0020] In this invention, unless otherwise specified, all parts and percentages are by weight, and the equipment and raw materials used are commercially available or commonly used in the field. Unless otherwise specified, the methods in the following embodiments are conventional methods in the field. Unless otherwise specified, the components or equipment in the following embodiments are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0021] Example:

[0022] like Figure 1 As shown, this utility model provides a technical solution: a torque testing device for impact and rotary machinery, including a bracket 1, a base frame 2, a torque testing component, a cylinder 10, and a rubber pressure block 9.

[0023] The aforementioned bracket 1 is located above the base frame 2. The cylinder 10 is fixedly mounted on the bracket 1 by bolts. The piston rod of the cylinder 10 passes through the upper end of the bracket 1 and is fixedly connected to the rubber pressure block 9 by bolts. Figure 2 As shown, the rubber block 9 has a slot at the bottom for locking the handle of the rotary tool, and the lower surface of the rubber block 9 also has a slot in the middle for the top of the rotary tool to extend into. The rubber block 9 can move up and down under the drive of the cylinder 10 to trigger the feather switch 12 of the rotary tool and make the rotary tool work.

[0024] Specifically, the torque testing assembly is mounted on the base frame 2 and includes a steering gear 7, a first coupling 11, a torque tester 6, a second coupling 5, and a magnetic powder brake 4. The two ends of the torque tester 6 are connected to the steering gear 7 and the magnetic powder brake 4 through the first coupling 11 and the second coupling 5, respectively. The connection port of the steering gear 7 is located directly below the drill rod 8. The drill rod 8 of the rotary tool is connected to the steering gear 7. The steering gear 7 can convert the axial torque of the drill rod 8 into a horizontal radial torque and output it through a horizontal output shaft.

[0025] Specifically, a buffer seat 3 is installed at the bottom of the base frame 2. The buffer seat 3 can effectively reduce the adverse effects caused by external vibration and machine impact during the operation of the device, ensure test stability, and create good conditions for accurate measurement.

[0026] Specifically, the testing device also includes an air source and a cylinder control valve. The air source is connected to the cylinder control valve through the main air inlet pipe G1. The cylinder control valve is connected to the air inlet and outlet of the cylinder 10 through the air inlet pipe G2 and the air outlet pipe G3, respectively. Through the convenient air circuit control system, the operator can easily control the movement of the cylinder 10 to achieve precise driving of the rubber block 9, thereby efficiently triggering the operation of rotary tools and greatly improving the convenience of testing operations.

[0027] Specifically, the testing device also includes a torque tester control panel and a magnetic particle brake control panel. The torque tester control panel is connected to the torque tester via the torque tester signal line X2, and the magnetic particle brake control panel is connected to the magnetic particle brake via the magnetic particle brake control line X1. The configuration of the torque tester signal line X2 and the magnetic particle brake control line X1 allows the operator to control the testing process in real time and accurately from a safe position away from the vibration source of the equipment. For example, the operator can flexibly adjust the braking torque of the magnetic particle brake and accurately read the data fed back by the torque tester, ensuring the efficiency and controllability of the testing process.

[0028] Taking a rock drill as an example, the test apparatus of this application is implemented in detail as follows:

[0029] At a mining site, it is necessary to test the torque performance of a rock drill. First, the torque testing device of this application is transported to the work area. Using the stable structure of the support 1 and the base frame 2, the device is placed stably on the ground. The air source is reliably connected to the main air inlet pipe G1 of the cylinder control valve to ensure a normal air supply. The drill rod 8 of the rock drill is accurately connected to the corresponding interface of the steering gear 7 so that the two work closely together to ensure smooth torque transmission. At this time, the cylinder control valve is activated so that the air source supplies air to the cylinder 10 through the cylinder inlet pipe G2. The piston rod of the cylinder pushes the rubber block 9 downward. The groove on the bottom of the rubber block 9 precisely locks the two handles of the rock drill and presses down the feather switch 12. The rock drill starts immediately, and the drill rod 8 begins to strike and rotate.

[0030] The rotation of drill rod 8 drives the steering gear 7 to work. The axial torque is converted into a horizontal radial torque output through the steering gear 7, and is transmitted sequentially through the first coupling 11, torque tester 6, and second coupling 5 to the magnetic powder brake 4. The three rotate synchronously. In the initial state, the knob on the magnetic powder brake control panel is set to the "0" position, no current flows, and the braking torque of the magnetic powder brake is 0. At this time, the no-load torque of the rock drill is displayed on the torque tester control panel. The operator can record this data. Subsequently, according to the test requirements, the magnetic powder controller knob is slowly rotated, the current gradually increases, the braking torque increases accordingly, and the rotation speed of drill rod 8 gradually decreases. When it is observed that the drill rod is about to stop rotating, the rotation of the magnetic powder brake control knob is immediately stopped. At this time, the value displayed by the torque tester is the maximum torque of the rock drill under the current working state. During the entire test, the buffer seat 3 effectively absorbs the vibration generated by the rock drill and the interference of the on-site environment, ensuring the stable operation of the test device. The torque tester signal line X2 and the magnetic powder brake control line X1 are connected. Real-time data is transmitted to the corresponding control panel, allowing operators to conveniently and accurately control the testing process and efficiently complete the torque performance test of the rock drill, providing a strong basis for subsequent equipment optimization and improvement.

[0031] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A torque testing device specifically for impact and rotary machinery, characterized in that: The testing device includes a bracket (1), a base frame (2), a torque testing assembly, a cylinder (10), and a rubber pressure block (9). The bracket (1) is located above the base frame (2). The cylinder (10) is mounted on the bracket (1). The piston rod of the cylinder (10) passes through the upper end of the bracket (1) and is connected to the rubber block (9). The rubber block (9) has a slot for locking the handle of the rotary tool. The rubber block (9) can move up and down under the drive of the cylinder (10) to trigger the feather switch (12) of the rotary tool and make the rotary tool work. The torque testing assembly is mounted on the base frame (2) and includes a steering gear (7), a first coupling (11), a torque tester (6), a second coupling (5), and a magnetic powder brake (4). The two ends of the torque tester (6) are connected to the steering gear (7) and the magnetic powder brake (4) through the first coupling (11) and the second coupling (5), respectively. The drill rod (8) of the rotary tool is connected to the steering gear (7). The steering gear (7) can convert the axial torque of the drill rod (8) into a horizontal radial torque and output it through a horizontal output shaft.

2. The torque testing device for impact rotary machinery according to claim 1, characterized in that: A buffer seat (3) is installed at the bottom of the base frame (2).

3. The torque testing device for impact rotary machinery according to claim 1, characterized in that: The testing device also includes an air source and a cylinder control valve. The air source is connected to the cylinder control valve through the main air inlet pipe (G1). The cylinder control valve is connected to the air inlet and air outlet of the cylinder (10) through the cylinder inlet pipe (G2) and the cylinder exhaust pipe (G3), respectively.

4. The torque testing device for impact rotary machinery according to claim 1, characterized in that: The testing device also includes a torque tester control panel and a magnetic powder brake control panel. The torque tester control panel is connected to the torque tester via the torque tester signal line (X2), and the magnetic powder brake control panel is connected to the magnetic powder brake via the magnetic powder brake control line (X1).

Images