A new vibration steel wheel performance test device and method

Abstract

The present invention relates to the technical field of engineering machinery, and in particular to a novel vibration steel wheel performance test device and method, comprising a vibration steel wheel and a test bench main body for placing the vibration steel wheel; fixed frames are symmetrically arranged on both sides of the test bench main body, the fixed frame comprises a frame, an oil cylinder is fixed on the frame, a counterweight frame is fixedly connected to the telescopic end of the oil cylinder, the counterweight frame is equipped with a counterweight block, a steel wheel connecting frame is slidably connected to the counterweight frame, and the steel wheel connecting frame can apply axial forces to the vibration steel wheel from both ends thereof under the action of external force; the present invention adopts a counterweight frame to simulate the weight of the front frame of the roller, and optimizes the mass ratio of the front frame to the vibration steel wheel by changing the weight of the counterweight block; external pressure is applied to the steel wheel connecting frame from the outside of the two steel wheel connecting frames, simulating the relative preload force on both sides of the vibration steel wheel in the actual roller, providing data accumulation for the design optimization of the vibration steel wheel, and shortening the test cycle of the vibration steel wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a novel vibration steel wheel performance testing device and method. Background Art

[0002] Vibratory rollers are essential construction machinery used for foundation compaction. Full-vehicle performance testing has become an essential step in the manufacturing process. Traditional outdoor full-vehicle field testing, due to limitations such as climate, site conditions, noise levels, and driver performance, makes it difficult to ensure the standardization and consistency of test procedures and data.

[0003] Among the components of a vibratory roller, the working performance and reliability of the vibratory steel wheel directly affect the compaction quality and efficiency of building materials. In the prior art, the vibration parameter test, vibration reduction performance, driving performance and reliability test of the vibratory steel wheel all adopt the whole machine test method. This method cannot meet the needs of testing vibratory steel wheels of different specifications. In addition, in the performance test of the vibratory steel wheel, the weight of the front frame, the horizontal loading force on both sides of the vibratory steel wheel, etc. have a great influence on the vibration reduction performance of the connection between the vibratory steel wheel and the vehicle body. The whole machine test method is not convenient for adjusting the weight of the front frame and the horizontal loading force on both sides of the vibratory steel wheel, which is not conducive to accumulating original test data for the research and development of new vibratory steel wheels. Summary of the Invention

[0004] 1. Technical Problems to be Solved

[0005] The purpose of the present invention is to provide a new type of vibratory steel wheel performance testing device and method, which is simple and reliable, saves testing costs, can carry out steel wheel performance testing and parameter verification more conveniently and quickly, and provide original data accumulation, working parameter optimization and reliability analysis for enterprises producing vibratory rollers.

[0006] 2. Technical Solution

[0007] The present invention is achieved through the following technical solution: the present invention proposes a new type of vibration steel wheel performance test device, including a vibration steel wheel and a test bench main body for placing the vibration steel wheel; fixed frames are symmetrically arranged on both sides of the test bench main body, and the fixed frame includes a frame, an oil cylinder is fixed on the frame, and the telescopic end of the oil cylinder is fixedly connected to a counterweight frame, and the counterweight frame is detachably equipped with a plurality of counterweight blocks, and a steel wheel connecting frame is slidably connected to the counterweight frame, and the steel wheel connecting frame can slide and fit to the end face of the vibration steel wheel under the action of external force, and apply axial force to the vibration steel wheel from both ends.

[0008] Furthermore, vertical guide rails are fixedly connected to both sides of the inner and outer sides of the frame, and two sliding seats are slidably connected to each of the vertical guide rails, and the counterweight frame is fixedly connected to the eight sliding seats; the inner top and bottom of the counterweight frame are fixedly connected to two horizontal guide rails, and the top and bottom of the steel wheel connecting frame are respectively connected to sliding plates that are slidably connected to the horizontal guide rails in a one-to-one correspondence.

[0009] Furthermore, a plurality of rubber vibration-damping blocks are respectively connected to both ends of the vibration steel wheel, and the outer ends of the rubber vibration-damping blocks are fixedly connected to inner connecting plates, and the inner connecting plates are detachably connected to the steel wheel connecting frame.

[0010] Furthermore, the test bench body includes a main base, and two groups of multiple support bearing seats arranged in parallel are fixedly connected above the main base; multiple vibration-damping tires are coaxially connected between the multiple support bearing seats in a single row, and the vibrating steel wheel is horizontally placed between the two rows of vibration-damping tires.

[0011] Furthermore, a rubber vibration damper group is installed below the main base.

[0012] A novel vibration steel wheel performance test method comprises the following steps:

[0013] S1: Calculate the weight of the front frame of the roller for the simulation test, install a counterweight block of equal weight on the counterweight frame, and place the vibrating steel wheel horizontally above the vibrating tire;

[0014] S2: Start the oil cylinder to drive the counterweight frame to rise as a whole until the steel wheel connecting frame and the inner connecting plate of the vibrating steel wheel are at the same height;

[0015] S3: Push the steel wheel connecting frame by external force, so that the steel wheel connecting frame slides along the horizontal guide rail toward the inner connecting plate until the inner connecting plate and the steel wheel connecting frame are in contact with each other;

[0016] S4: Connect the steel wheel connecting frame and the inner connecting plate, and continue to push the steel wheel connecting frame with external force, so that the two steel wheel connecting frames on both sides of the vibrating steel wheel slide towards each other. The steel wheel connecting frame applies axial force to both ends of the vibrating steel wheel to achieve loading;

[0017] S5: Start the oil cylinder to lower the counterweight frame, carry out the vibration steel wheel test, measure the various performance of the vibration steel wheel, and study the changes in the performance of the vibration steel wheel under different variable conditions, accumulate data, and provide a reference for further optimization of the design.

[0018] 3. Beneficial Effects

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention mentions a novel vibratory steel wheel performance test device and method, which uses a counterweight frame to simulate the weight of the roller's front frame to verify whether the vibration parameters of the vibratory steel wheel meet the design requirements. The mass ratio of the front frame to the vibratory steel wheel can be optimized by changing the weight of the counterweight block. This method quickly provides data accumulation for the design optimization of the vibratory steel wheel and shortens the test cycle of the vibratory steel wheel.

[0021] 2. Apply external pressure to the steel wheel connecting frames from the outside of the two steel wheel connecting frames to simulate the relative preload on both sides of the vibrating steel wheels in an actual roller. Change the pre-compression amount of the rubber vibration damping block. By analyzing the dynamic vibration damping performance at different pre-compression amounts, a reference for the design of the rubber vibration damping block is provided.

[0022] 3. A secondary vibration reduction system consisting of vibration-reducing tires and rubber vibration dampers is installed under the test bench, effectively reducing the impact on the foundation and other surrounding environments during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall assembly diagram of the present invention;

[0024] Figure 2 It is a structural diagram of the fixed frame;

[0025] Figure 3 It is the main view of the fixed frame;

[0026] Figure 4 It is the main view of the test bench body;

[0027] 1-Vibration steel wheel; 101-Inner connecting plate; 102-Rubber vibration damping block; 2-Test bench body; 201-Main base; 202-Support bearing seat; 203-Vibration damping tire; 204-Rubber vibration damper group; 3-Fixed frame; 301-Frame; 302-Cylinder; 303-Vertical guide rail; 304-Counterweight frame; 305-Horizontal guide rail; 306-Steel wheel connecting frame; 307-Counterweight block; 308-Sliding seat; 309-Sliding plate; 310-Side base; 311-Crossbeam. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1The present invention discloses a novel vibratory steel wheel performance testing device comprising a vibratory steel wheel 1 and a test bench body 2 for placing the vibratory steel wheel 1 and facilitating testing. Fixing frames 3 are symmetrically fixed on either side of the test bench body 2. Fixing frames 3 are used to load the vibratory steel wheel 1 with simulated variables that affect its performance.

[0030] See also Figure 2 、 Figure 3 The fixed frame 3 includes a frame 301 which serves as its main support, and a crossbeam 311 is welded on the frame 301 to enhance the overall strength of the frame 301; a cylinder 302 with a telescopic end facing downward is fixedly connected above the frame 301, and vertical guide rails 303 are fixedly connected on both sides of the inner and outer sides of the frame 301, and two sliding seats 308 are slidably connected to each vertical guide rail 303, and a counterweight frame 304 is connected at the telescopic end of the cylinder 302. The counterweight frame 304 and the eight sliding seats 308 are fixedly connected. Therefore, the counterweight frame 304 can be driven by the cylinder 302 to realize overall vertical lifting and lowering along the vertical guide rails 303 to change its height; a side base 310 is provided below the frame 301 to stably install the frame 301.

[0031] See also Figure 2 、 Figure 3 Four horizontal guide rails 305 are fixedly installed on the counterweight frame 304, and a steel wheel connecting frame 306 is provided on the counterweight frame 304. The four horizontal guide rails 305 are respectively located on the upper and lower sides of the steel wheel connecting frame 306, and two sliding plates 309 are fixedly connected to the top and bottom of the steel wheel connecting frame 306. The four sliding plates 309 are respectively slidably connected to the horizontal guide rails 305. The steel wheel connecting frame 306 can slide along the horizontal guide rails 305 toward the end face of the vibrating steel wheel 1 and apply axial force from both ends of the vibrating steel wheel 1 under the action of external force; in addition, the counterweight frame 304 is provided with a plurality of counterweight blocks 307. By adjusting the weight of the counterweight blocks 307, the overall weight of the counterweight frame 304 can be adjusted, thereby simulating the actual influence of the front frame on the performance of the vibrating steel wheel 1.

[0032] Please refer to 1. Figure 4The test bench body 2 includes a main base 201, on top of which are fixedly connected two groups of multiple support bearing seats 202 arranged in parallel; multiple vibration-damping tires 203 are coaxially connected between the multiple support bearing seats 202 in a single row. Specifically, the axial center distance between the vibration-damping tires 203 is adjustable, so that vibration steel wheels 1 of different sizes can be placed between the two rows of vibration-damping tires 203. In order to reduce the vibration impact of the vibration steel wheel 1 on the surrounding environment and damage to the foundation during the test, the vibration-damping tires 203 play a first-level vibration-damping effect. In addition, a rubber vibration damper group 204 is installed under the main base 201, which plays a second-level vibration-damping effect. Under the action of the secondary vibration-damping system, the feasibility of test operations in an indoor all-weather environment is realized, protecting the foundation.

[0033] The main body of the vibrating steel wheel 1 in this invention has a conventional structure. It generates centrifugal force by rotating a vibrating shaft with an internal eccentric mass at high speed, which vibrates the ground. Multiple rubber damping blocks 102 are connected to both ends of the vibrating steel wheel 1 to withstand shear forces. The outer ends of these rubber damping blocks 102 are fixed with inner connecting plates 101 for mounting and connection. In this device, the inner connecting plates 101 are connected to the steel wheel connecting frame 306 for simulation testing.

[0034] This embodiment proposes a method for implementing a novel performance test device for a vibrating steel wheel 1, comprising the following steps:

[0035] Step 1: Calculate the weight of the front frame of the roller in the simulation test, install and connect the counterweight block 307 of the same weight to the counterweight frame 304, and place the vibrating steel wheel 1 horizontally above the vibrating tire;

[0036] Step 2: Start the oil cylinder 302 to drive the counterweight frame 304 to lift as a whole until the steel wheel connecting frame 306 and the inner connecting plate 101 of the vibrating steel wheel 1 are at the same height;

[0037] Step 3: Push the steel wheel connecting frame 306 with external force, so that the steel wheel connecting frame 306 slides along the horizontal guide rail 305 toward the inner connecting plate 101 until the inner connecting plate 101 and the steel wheel connecting frame 306 are in contact with each other;

[0038] Step 4: Connect the steel wheel connecting frame 306 to the inner connecting plate 101, and continue to push the steel wheel connecting frame 306 with external force, so that the two steel wheel connecting frames 306 on both sides of the vibration steel wheel 1 slide toward each other. The steel wheel connecting frame 306 applies axial force to both ends of the vibration steel wheel 1 to achieve loading;

[0039] Step 5: Start the oil cylinder 302 to lower the counterweight frame 304, carry out the vibration steel wheel 1 test, measure the various performances of the vibration steel wheel 1, and study the changes in the performance of the vibration steel wheel 1 under different variable conditions, accumulate data, and provide a reference for further optimization of the design.

[0040] Working principle: Place the vibrating steel wheel 1 above the vibrating tire, and place a counterweight 307 on the counterweight frame 304 to simulate the weight of the front frame, so as to verify through experiments whether the vibration parameters of the vibrating steel wheel 1 meet the design requirements, and adjust and optimize the mass ratio between the front frame and the vibrating steel wheel 1 by loading counterweights 307 of different weights; start the oil cylinder 302 to drive the counterweight frame 304 to rise as a whole along the vertical guide rail 303 until the steel wheel connecting frame 306 and the inner connecting plate 101 of the vibrating steel wheel 1 are at the same height; The steel wheel connecting frame 306 is pushed to slide along the horizontal guide rail 305 by an external force such as a jack. After the steel wheel connecting frame 306 approaches and fits against the inner connecting plate 101, the steel wheel connecting frame 306 is connected to the inner connecting plate 101 by connecting parts such as bolts and nuts. The loading is continued so that the two steel wheel connecting frames 306 on both sides of the vibrating steel wheel 1 are close to each other along the axial direction of the vibrating steel wheel 1. At this time, the rubber vibration damping block 102 is squeezed and produces a certain amount of pre-compression. The oil cylinder 302 is started to lower the counterweight frame 304 and carry out the test of the vibrating steel wheel 1. During the vibration process of the vibrating steel wheel 1, by observing the resistance of the rubber vibration damping block 102 to the shear deformation caused by vibration under different pre-compression amounts, the dynamic vibration damping performance under different pre-compression amounts is analyzed and verified, providing a reference for the design of the rubber vibration damping block 102. In addition, the amplitude, vibration frequency and other more comprehensive data of the vibrating steel wheel 1 during the test can be monitored and recorded in real time by equipment such as infrared displacement sensors. Therefore, the present invention can verify the dynamic vibration damping performance data of the vibration steel wheel 1 when it is connected to the front frame with different mass ratios, and the rubber vibration damping block 102 at different pre-compression amounts for the vibration steel wheel 1 of different vibration sizes, quickly provide data accumulation for the design optimization of the vibration steel wheel 1, and shorten the test cycle of the vibration steel wheel 1.

[0041] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new type of vibration steel wheel performance test device, characterized in that: The invention comprises a vibrating steel wheel and a test bench body for placing the vibrating steel wheel; fixed frames are symmetrically arranged on both sides of the test bench body, the fixed frame comprises a frame, an oil cylinder is fixed on the frame, the telescopic end of the oil cylinder is fixedly connected to a counterweight frame, the counterweight frame is detachably matched with a plurality of counterweight blocks, and a steel wheel connecting frame is slidably connected to the counterweight frame, the steel wheel connecting frame can slide and fit to the end face of the vibrating steel wheel under the action of external force, and apply axial force to the vibrating steel wheel from both ends thereof, the counterweight frame is used to simulate the weight of the front frame of the roller, and the mass ratio of the front frame to the vibrating steel wheel is optimized by changing the weight of the counterweight block, and the outer sides of the two steel wheel connecting frames are used to simulate the weight of the front frame of the roller. External pressure is applied to the steel wheel connecting frame to simulate the relative pre-tightening force on both sides of the vibrating steel wheel in the actual roller; vertical guide rails are fixedly connected to both sides of the inner and outer sides of the frame, and two sliding seats are slidably connected to each of the vertical guide rails, and the counterweight frame is fixedly connected to the eight sliding seats; the inner top and bottom of the counterweight frame are fixedly connected to two horizontal guide rails, and the top and bottom of the steel wheel connecting frame are respectively connected to sliding plates that are slidably connected to the horizontal guide rails in a one-to-one correspondence; multiple rubber vibration-damping blocks are connected to both ends of the vibrating steel wheel, and the outer ends of the rubber vibration-damping blocks are fixedly connected to inner connecting plates, and the inner connecting plates are detachably connected to the steel wheel connecting frame; The test bench body includes a main base, and two groups of multiple support bearing seats arranged in parallel are fixedly connected above the main base; multiple vibration-damping tires are coaxially connected between the multiple support bearing seats in a single row, and the vibrating steel wheel is horizontally placed between the two rows of vibration-damping tires.

2. A novel vibration steel wheel performance test device according to claim 1, characterized in that: A rubber vibration damper group is installed below the main base.

3. A new vibration steel wheel performance test method, characterized in that: The novel vibration steel wheel performance test device according to claim 1 or 2 is included, and the test method includes the following steps: S1: Calculate the weight of the front frame of the roller for the simulation test, install a counterweight block of equal weight on the counterweight frame, and place the vibrating steel wheel horizontally above the vibrating tire; S2: Start the oil cylinder to drive the counterweight frame to rise as a whole until the steel wheel connecting frame and the inner connecting plate of the vibrating steel wheel are at the same height; S3: Push the steel wheel connecting frame by external force, so that the steel wheel connecting frame slides along the horizontal guide rail toward the inner connecting plate until the inner connecting plate and the steel wheel connecting frame are in contact with each other; S4: Connect the steel wheel connecting frame and the inner connecting plate, and continue to push the steel wheel connecting frame with external force, so that the two steel wheel connecting frames on both sides of the vibrating steel wheel slide towards each other. The steel wheel connecting frame applies axial force to both ends of the vibrating steel wheel to achieve loading; S5: Start the oil cylinder to lower the counterweight frame, carry out the vibration steel wheel test, measure the various performance of the vibration steel wheel, and study the changes in the performance of the vibration steel wheel under different variable conditions, accumulate data, and provide a reference for further optimization of the design.

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