Test bench for testing gradeability of heading machine
By designing a tunnel boring machine test bench that includes a concrete foundation pit, anchor supports, a climbing platform and a jack, the problems of large area occupation and difficulty in accurately adjusting the slope platform angle in traditional testing methods were solved, and accurate testing of the tunnel boring machine's climbing ability was achieved.
Patent Information
- Application Number
- CN202422922108.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The traditional method of testing the climbing ability of a tunnel boring machine requires pouring concrete into multiple slope platforms with different inclination angles, which occupies a large area and is difficult to adjust accurately, resulting in inaccurate test results.
A test bench was designed, which included a concrete foundation pit, anchor supports, a climbing platform, a slope indicator, and a double-telescopic column jack. These components were used to achieve fine-tuning and precise control of the climbing platform’s angle, and automated testing was performed in combination with a control system and data acquisition module.
It reduces the area occupied and can accurately adjust the angle of the climbing platform according to needs, which improves the accuracy of the test results and supports the development and use of tunnel boring machines.
Smart Images
Figure CN223361782U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a test bench for testing the climbing ability of a tunnel boring machine, belonging to the technical field of engineering machinery testing. Background Art
[0002] my country has become the world's largest manufacturing base and market for roadheaders. With the rapid growth of domestic urban rail transit, railways, highways, water conservancy projects, and municipal engineering projects, my country's roadheader industry has also experienced rapid development. my country's roadheader industry has become a key sector supported by the country's high-end equipment manufacturing industry and strategic emerging industries. China is a major coal producer with numerous coal mines of all sizes. With rising prices for oil and natural gas, coal has become a popular energy source in China, and future demand is expected to be enormous, stimulating the rapid development of the coal mining industry. With the government's increased attention to coal mining safety, the gradual realization of fully mechanized production is becoming possible, which will inevitably further increase demand for coal mine roadheaders.
[0003] With the continuous deepening and development of underground engineering, the performance of tunnel boring machines (TBMs), as important construction equipment, directly affects the progress and safety of the project. In particular, the climbing ability of the TBM is particularly critical for tunnel excavation under complex geological conditions. Traditional testing methods often rely on manual operation, usually by driving the TBM on ramps with different inclination angles to climb. This inevitably requires pouring concrete on multiple ramps with different inclination angles. This not only occupies a large area, but also, because the angle of the ramp is relatively fixed, it is difficult to fine-tune the angle of the ramp according to the needs of use, resulting in the final test results being less than accurate. Based on this, the utility model provides a test bench for testing the climbing ability of the TBM. Utility Model Content
[0004] The technical problem solved by the utility model is that: pouring multiple slope platforms with different inclination angles with concrete occupies a large area, making it difficult to fine-tune the angle of the slope platform according to usage needs, resulting in inaccurate final test results.
[0005] In order to solve the technical problem, the technical solution provided by the utility model is: a test bench for testing the climbing ability of a tunnel boring machine, comprising a concrete foundation pit, a foundation support is provided on the top of the concrete foundation pit, the foundation support is rotatably connected to a climbing platform, a slope indicator is provided on the oblique lower end of the climbing platform, a groove is provided on the side of the concrete foundation pit away from the foundation support, the bottom of the groove is symmetrically provided with a foundation pit anchor support, the bottom of the oblique upper end of the climbing platform is symmetrically provided with a jack support, a double telescopic column jack is rotatably connected between the foundation pit anchor support and the jack support, and a tunnel boring machine is provided on the top of the climbing platform.
[0006] Furthermore, a platform pin is provided between the anchor support and the climbing platform.
[0007] Furthermore, the climbing platform includes a platform base plate, a platform reinforcing cross brace arranged on the top of the platform base plate, and a platform middle support arranged between the platform reinforcing cross braces. Filling mortar is provided between the platform base plate, the platform reinforcing cross brace, and the platform middle support.
[0008] Furthermore, a jack pin is provided between the top of the double telescopic column jack and the jack support.
[0009] Furthermore, a foundation pit anchor pin is provided between the bottom end of the double telescopic column jack and the foundation pit anchor support.
[0010] Beneficial effects of the utility model:
[0011] There is no need to cast multiple ramps with different inclination angles with concrete, and the area occupied is smaller. The angle of the climbing platform can be fine-tuned according to usage needs, making the final test results more accurate and providing strong technical support for the research and development and use of tunnel boring machines. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of a test bench for testing the climbing ability of a tunnel boring machine. Figure 1 .
[0013] Figure 2 This is a schematic diagram of a test bench for testing the climbing ability of a tunnel boring machine. Figure 2 .
[0014] Figure 3 This is a schematic diagram of a test bench for testing the climbing ability of a tunnel boring machine. Figure 3 .
[0015] Figure 4 This is a partially enlarged view of a test bench for testing the climbing ability of a tunnel boring machine in the utility model.
[0016] 1. Concrete foundation pit; 2. Anchor support; 3. Platform pin; 4. Climbing platform; 5. Slope indicator; 6. Filling mortar; 7. Platform base plate; 8. Platform reinforcement cross brace; 9. Platform center support; 10. Jack support; 11. Jack pin; 12. Double telescopic column jack; 13. Foundation pit foundation support; 14. Foundation pit foundation pin; 15. Tunnel boring machine. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] According to the attached Figure 1 、 23: The utility model provides a test bench for testing the climbing ability of a tunnel boring machine: it includes a concrete foundation pit 1, a foundation support 2 is provided on the top of the concrete foundation pit 1, the foundation support 2 is rotatably connected to a climbing platform 4, a platform pin 3 is provided between the foundation support 2 and the climbing platform 4, to ensure that the climbing platform 4 can effectively adjust the inclination angle, a slope indicator 5 is provided on one side of the lower end of the climbing platform 4, for displaying the current slope value in real time, which is convenient for the operator to monitor and adjust, a groove is provided on the side of the concrete foundation pit 1 away from the foundation support 2, and a foundation pit foundation support 13 is symmetrically provided on the bottom of the groove, and the climbing platform A jack support 10 is symmetrically provided at the bottom of the inclined upper end. A double telescopic column jack 12 is rotatably connected between the foundation pit anchor support 13 and the jack support 10. A jack pin 11 is provided between the top of the double telescopic column jack 12 and the jack support 10. A foundation pit anchor pin 14 is provided between the bottom end of the double telescopic column jack 12 and the foundation pit anchor support 13 to ensure that the double telescopic column jack 12 can effectively extend and retract. A tunnel boring machine 15 is provided on the top of the climbing platform 4. The double telescopic column jacks 12 are installed on both sides of the climbing platform 4 to achieve smooth lifting and slope adjustment of the tunnel boring machine 15.
[0019] According to the attached Figure 4 As shown: the climbing platform 4 includes a platform base plate 7, a platform reinforcing cross brace 8 arranged on the top of the platform base plate 7, a platform middle support 9 arranged between the platform reinforcing cross braces 8, and a filling mortar 6 is provided between the platform base plate 7, the platform reinforcing cross brace 8, and the platform middle support 9. A frame is made of the platform base plate 7, the platform reinforcing cross brace 8, and the platform middle support 9, and concrete is poured on the surface to increase friction and ensure stability during the test. The double telescopic column jack 12 and the sturdy climbing platform 4 are used to ensure the safety of the test process.
[0020] The test bench is equipped with a control system that integrates sensors, actuators, and a data processing unit. This system automatically controls the extension and retraction of the dual-telescopic column jack, precisely adjusts the slope, and records test data. A data acquisition and analysis module, electrically connected to the control system, collects various parameters during the test, such as the roadheader's power, speed, and pressure, for analysis and evaluation of its climbing performance. The connection and structure between the control system, the dual-telescopic column jack, and the data acquisition and analysis module are based on basic circuit principles and are conventional techniques in the field. The internal circuit structure will not be detailed here.
[0021] Principle of the utility model
[0022] During use, the tunnel boring machine is placed on the climbing platform 4. According to the test requirements, the double telescopic column jack 12 is started to adjust the inclination angle of the climbing platform 4 to the preset value, and the test is started. The tunnel boring machine 15 tries to climb. After the test, the double telescopic column jack 12 is started and reset to prepare for the next test or replacement of the tunnel boring machine. There is no need to cast multiple slopes with different inclination angles with concrete, and the area occupied is smaller. The angle of the climbing platform can be fine-tuned according to the needs of use, so that the final test results are more accurate, providing strong technical support for the research and development and use of tunnel boring machines.
[0023] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.
Claims
1. A test bench for testing the gradeability of a roadheader, comprising a concrete foundation pit (1), characterized in that: The top of the concrete foundation pit (1) is provided with an anchor support (2), the anchor support (2) is rotatably connected to a climbing platform (4), a slope indicator (5) is provided on one side of the inclined lower end of the climbing platform (4), a groove is provided on the side of the concrete foundation pit (1) away from the anchor support (2), a foundation pit anchor support (13) is symmetrically provided at the bottom of the groove, a jack support (10) is symmetrically provided at the bottom of the inclined upper end of the climbing platform (4), a double telescopic column jack (12) is rotatably connected between the foundation pit anchor support (13) and the jack support (10), and a tunnel boring machine (15) is provided on the top of the climbing platform (4).
2. The test bench for testing the gradeability of a roadheader according to claim 1, characterized in that: A platform pin shaft (3) is provided between the foot support (2) and the climbing platform (4).
3. The test bench for testing the gradeability of a roadheader according to claim 1, characterized in that: The climbing platform (4) comprises a platform base plate (7), a platform reinforcing cross brace (8) arranged on the top of the platform base plate (7), and a platform middle support (9) arranged between the platform reinforcing cross brace (8); and filling mortar (6) is provided between the platform base plate (7), the platform reinforcing cross brace (8), and the platform middle support (9).
4. The test bench for testing the gradeability of a roadheader according to claim 1, characterized in that: A jack pin shaft (11) is provided between the top end of the double telescopic column jack (12) and the jack support (10).
5. The test bench for testing the gradeability of a roadheader according to claim 1, characterized in that: A foundation pit anchor pin shaft (14) is provided between the bottom end of the double telescopic column jack (12) and the foundation pit anchor support (13).